aboutsummaryrefslogtreecommitdiffstats
path: root/android/console.c
blob: ed02db575b9445fe4053bbce3b1502cb0bc3687d (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
1565
1566
1567
1568
1569
1570
1571
1572
1573
1574
1575
1576
1577
1578
1579
1580
1581
1582
1583
1584
1585
1586
1587
1588
1589
1590
1591
1592
1593
1594
1595
1596
1597
1598
1599
1600
1601
1602
1603
1604
1605
1606
1607
1608
1609
1610
1611
1612
1613
1614
1615
1616
1617
1618
1619
1620
1621
1622
1623
1624
1625
1626
1627
1628
1629
1630
1631
1632
1633
1634
1635
1636
1637
1638
1639
1640
1641
1642
1643
1644
1645
1646
1647
1648
1649
1650
1651
1652
1653
1654
1655
1656
1657
1658
1659
1660
1661
1662
1663
1664
1665
1666
1667
1668
1669
1670
1671
1672
1673
1674
1675
1676
1677
1678
1679
1680
1681
1682
1683
1684
1685
1686
1687
1688
1689
1690
1691
1692
1693
1694
1695
1696
1697
1698
1699
1700
1701
1702
1703
1704
1705
1706
1707
1708
1709
1710
1711
1712
1713
1714
1715
1716
1717
1718
1719
1720
1721
1722
1723
1724
1725
1726
1727
1728
1729
1730
1731
1732
1733
1734
1735
1736
1737
1738
1739
1740
1741
1742
1743
1744
1745
1746
1747
1748
1749
1750
1751
1752
1753
1754
1755
1756
1757
1758
1759
1760
1761
1762
1763
1764
1765
1766
1767
1768
1769
1770
1771
1772
1773
1774
1775
1776
1777
1778
1779
1780
1781
1782
1783
1784
1785
1786
1787
1788
1789
1790
1791
1792
1793
1794
1795
1796
1797
1798
1799
1800
1801
1802
1803
1804
1805
1806
1807
1808
1809
1810
1811
1812
1813
1814
1815
1816
1817
1818
1819
1820
1821
1822
1823
1824
1825
1826
1827
1828
1829
1830
1831
1832
1833
1834
1835
1836
1837
1838
1839
1840
1841
1842
1843
1844
1845
1846
1847
1848
1849
1850
1851
1852
1853
1854
1855
1856
1857
1858
1859
1860
1861
1862
1863
1864
1865
1866
1867
1868
1869
1870
1871
1872
1873
1874
1875
1876
1877
1878
1879
1880
1881
1882
1883
1884
1885
1886
1887
1888
1889
1890
1891
1892
1893
1894
1895
1896
1897
1898
1899
1900
1901
1902
1903
1904
1905
1906
1907
1908
1909
1910
1911
1912
1913
1914
1915
1916
1917
1918
1919
1920
1921
1922
1923
1924
1925
1926
1927
1928
1929
1930
1931
1932
1933
1934
1935
1936
1937
1938
1939
1940
1941
1942
1943
1944
1945
1946
1947
1948
1949
1950
1951
1952
1953
1954
1955
1956
1957
1958
1959
1960
1961
1962
1963
1964
1965
1966
1967
1968
1969
1970
1971
1972
1973
1974
1975
1976
1977
1978
1979
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027
2028
2029
2030
2031
2032
2033
2034
2035
2036
2037
2038
2039
2040
2041
2042
2043
2044
2045
2046
2047
2048
2049
2050
2051
2052
2053
2054
2055
2056
2057
2058
2059
2060
2061
2062
2063
2064
2065
2066
2067
2068
2069
2070
2071
2072
2073
2074
2075
2076
2077
2078
2079
2080
2081
2082
2083
2084
2085
2086
2087
2088
2089
2090
2091
2092
2093
2094
2095
2096
2097
2098
2099
2100
2101
2102
2103
2104
2105
2106
2107
2108
2109
2110
2111
2112
2113
2114
2115
2116
2117
2118
2119
2120
2121
2122
2123
2124
2125
2126
2127
2128
2129
2130
2131
2132
2133
2134
2135
2136
2137
2138
2139
2140
2141
2142
2143
2144
2145
2146
2147
2148
2149
2150
2151
2152
2153
2154
2155
2156
2157
2158
2159
2160
2161
2162
2163
2164
2165
2166
2167
2168
2169
2170
2171
2172
2173
2174
2175
2176
2177
2178
2179
2180
2181
2182
2183
2184
2185
2186
2187
2188
2189
2190
2191
2192
2193
2194
2195
2196
2197
2198
2199
2200
2201
2202
2203
2204
2205
2206
2207
2208
2209
2210
2211
2212
2213
2214
2215
2216
2217
2218
2219
2220
2221
2222
2223
2224
2225
2226
2227
2228
2229
2230
2231
2232
2233
2234
2235
2236
2237
2238
2239
2240
2241
2242
2243
2244
2245
2246
2247
2248
2249
2250
2251
2252
2253
2254
2255
2256
2257
2258
2259
2260
2261
2262
2263
2264
2265
2266
2267
2268
2269
2270
2271
2272
2273
2274
2275
2276
2277
2278
2279
2280
2281
2282
2283
2284
2285
2286
2287
2288
2289
2290
2291
2292
2293
2294
2295
2296
2297
2298
2299
2300
2301
2302
2303
2304
2305
2306
2307
2308
2309
2310
2311
2312
2313
2314
2315
2316
2317
2318
2319
2320
2321
2322
2323
2324
2325
2326
2327
2328
2329
2330
2331
2332
2333
2334
2335
2336
2337
2338
2339
2340
2341
2342
2343
2344
2345
2346
2347
2348
2349
2350
2351
2352
2353
2354
2355
2356
2357
2358
2359
2360
2361
2362
2363
2364
2365
2366
2367
2368
2369
2370
2371
2372
2373
2374
2375
2376
2377
2378
2379
2380
2381
2382
2383
2384
2385
2386
2387
2388
2389
2390
2391
2392
2393
2394
2395
2396
2397
2398
2399
2400
2401
2402
2403
2404
2405
2406
2407
2408
2409
2410
2411
2412
2413
2414
2415
2416
2417
2418
2419
2420
2421
2422
2423
2424
2425
2426
2427
2428
2429
2430
2431
2432
2433
2434
2435
2436
2437
2438
2439
2440
2441
2442
2443
2444
2445
2446
2447
2448
2449
2450
2451
2452
2453
2454
2455
2456
2457
2458
2459
2460
2461
2462
2463
2464
2465
2466
2467
2468
2469
2470
2471
2472
2473
2474
2475
2476
2477
2478
2479
2480
2481
2482
2483
2484
2485
2486
2487
2488
2489
2490
2491
2492
2493
2494
2495
2496
2497
2498
2499
2500
2501
2502
2503
2504
2505
2506
2507
2508
2509
2510
2511
2512
2513
2514
2515
2516
2517
2518
2519
2520
2521
2522
2523
2524
2525
2526
2527
2528
2529
2530
2531
2532
2533
2534
2535
2536
2537
2538
2539
2540
2541
2542
2543
2544
2545
2546
2547
2548
2549
2550
2551
2552
2553
2554
2555
2556
2557
2558
2559
2560
2561
2562
2563
2564
2565
2566
2567
2568
2569
2570
2571
2572
2573
2574
2575
2576
2577
2578
2579
2580
2581
2582
2583
2584
2585
2586
2587
2588
2589
2590
2591
2592
2593
2594
2595
2596
2597
2598
2599
2600
2601
2602
2603
2604
2605
2606
2607
2608
2609
2610
2611
2612
2613
2614
2615
2616
2617
2618
2619
2620
2621
2622
2623
2624
2625
2626
2627
2628
2629
2630
2631
2632
2633
2634
2635
2636
2637
2638
2639
2640
2641
2642
2643
2644
2645
2646
2647
2648
2649
2650
2651
2652
2653
2654
2655
2656
2657
2658
2659
2660
2661
2662
2663
2664
2665
2666
2667
2668
2669
2670
2671
2672
2673
2674
2675
2676
2677
2678
2679
2680
2681
2682
2683
2684
2685
2686
2687
2688
2689
2690
2691
2692
2693
2694
2695
2696
2697
2698
2699
2700
2701
2702
2703
2704
2705
2706
2707
2708
2709
2710
2711
2712
2713
2714
2715
2716
2717
2718
2719
2720
2721
2722
2723
2724
2725
2726
2727
2728
2729
2730
2731
2732
2733
2734
2735
2736
2737
2738
2739
2740
2741
2742
2743
2744
2745
2746
2747
2748
2749
2750
2751
2752
2753
2754
2755
2756
2757
2758
2759
2760
2761
2762
2763
2764
2765
2766
2767
2768
2769
2770
2771
2772
2773
2774
2775
2776
2777
2778
2779
2780
2781
2782
2783
2784
2785
2786
2787
2788
2789
2790
2791
2792
2793
2794
2795
2796
2797
2798
2799
2800
2801
2802
2803
2804
2805
2806
2807
2808
2809
2810
2811
2812
2813
2814
2815
2816
2817
2818
2819
2820
2821
2822
2823
2824
2825
2826
2827
2828
2829
2830
2831
2832
2833
2834
2835
2836
2837
2838
2839
2840
2841
2842
2843
2844
2845
2846
2847
2848
2849
2850
2851
2852
2853
2854
2855
2856
2857
2858
2859
2860
2861
2862
2863
2864
2865
2866
2867
2868
2869
2870
2871
2872
2873
2874
2875
2876
2877
2878
2879
2880
2881
2882
2883
2884
2885
2886
2887
2888
2889
2890
2891
2892
2893
2894
2895
2896
2897
2898
2899
2900
2901
2902
2903
2904
2905
2906
2907
2908
2909
2910
2911
2912
2913
2914
2915
2916
2917
2918
2919
2920
2921
2922
2923
2924
2925
2926
2927
2928
2929
2930
2931
2932
2933
2934
2935
2936
2937
2938
2939
2940
2941
2942
2943
2944
2945
2946
2947
2948
2949
2950
2951
2952
2953
2954
2955
2956
2957
2958
2959
2960
2961
2962
2963
2964
2965
2966
2967
2968
2969
2970
2971
2972
2973
2974
2975
2976
2977
2978
2979
2980
2981
2982
2983
2984
2985
2986
2987
2988
2989
2990
2991
2992
2993
2994
2995
2996
/* Copyright (C) 2007-2008 The Android Open Source Project
**
** This software is licensed under the terms of the GNU General Public
** License version 2, as published by the Free Software Foundation, and
** may be copied, distributed, and modified under those terms.
**
** This program is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
** GNU General Public License for more details.
*/
/*
 *  Android emulator control console
 *
 *  this console is enabled automatically at emulator startup, on port 5554 by default,
 *  unless some other emulator is already running. See (android_emulation_start in android_sdl.c
 *  for details)
 *
 *  you can telnet to the console, then use commands like 'help' or others to dynamically
 *  change emulator settings.
 *
 */

#include "sockets.h"
#include "qemu-char.h"
#include "sysemu.h"
#include "android/android.h"
#include "cpu.h"
#include "hw/goldfish_device.h"
#include "hw/power_supply.h"
#include "shaper.h"
#include "modem_driver.h"
#include "android/gps.h"
#include "android/globals.h"
#include "android/utils/bufprint.h"
#include "android/utils/debug.h"
#include "android/utils/stralloc.h"
#include "android/config/config.h"
#include "tcpdump.h"
#include "net.h"
#include "monitor.h"

#include <stdlib.h>
#include <stdio.h>
#include <stdarg.h>
#include <string.h>
#include <unistd.h>
#include <fcntl.h>
#include "android/hw-events.h"
#include "user-events.h"
#include "android/hw-sensors.h"
#include "android/keycode-array.h"
#include "android/charmap.h"
#include "android/display-core.h"
#include "android/protocol/fb-updates-proxy.h"
#include "android/protocol/user-events-impl.h"
#include "android/protocol/ui-commands-api.h"
#include "android/protocol/core-commands-impl.h"
#include "android/protocol/ui-commands-proxy.h"
#include "android/protocol/attach-ui-proxy.h"

#if defined(CONFIG_SLIRP)
#include "libslirp.h"
#endif

#define  DEBUG  1

#if 1
#  define  D_ACTIVE   VERBOSE_CHECK(console)
#else
#  define  D_ACTIVE   DEBUG
#endif

#if DEBUG
#  define  D(x)   do { if (D_ACTIVE) ( printf x , fflush(stdout) ); } while (0)
#else
#  define  D(x)   do{}while(0)
#endif

typedef struct ControlGlobalRec_*  ControlGlobal;

typedef struct ControlClientRec_*  ControlClient;

typedef struct {
    int           host_port;
    int           host_udp;
    unsigned int  guest_ip;
    int           guest_port;
} RedirRec, *Redir;


typedef int Socket;

typedef struct ControlClientRec_
{
    struct ControlClientRec_*  next;       /* next client in list           */
    Socket                     sock;       /* socket used for communication */
    ControlGlobal              global;
    char                       finished;
    char                       buff[ 4096 ];
    int                        buff_len;

} ControlClientRec;


typedef struct ControlGlobalRec_
{
    /* listening socket */
    Socket    listen_fd;

    /* the list of current clients */
    ControlClient   clients;

    /* the list of redirections currently active */
    Redir     redirs;
    int       num_redirs;
    int       max_redirs;

} ControlGlobalRec;

#ifdef CONFIG_STANDALONE_CORE
/* UI client currently attached to the core. */
ControlClient attached_ui_client = NULL;

/* User events service client. */
ControlClient user_events_client = NULL;

/* UI control service client (UI -> Core). */
ControlClient ui_core_ctl_client = NULL;

/* UI control service (UI -> Core. */
// CoreUICtl* ui_core_ctl = NULL;

/* UI control service client (Core-> UI). */
ControlClient core_ui_ctl_client = NULL;
#endif  // CONFIG_STANDALONE_CORE

static int
control_global_add_redir( ControlGlobal  global,
                          int            host_port,
                          int            host_udp,
                          unsigned int   guest_ip,
                          int            guest_port )
{
    Redir  redir;

    if (global->num_redirs >= global->max_redirs)
    {
        int  old_max = global->max_redirs;
        int  new_max = old_max + (old_max >> 1) + 4;

        Redir  new_redirs = realloc( global->redirs, new_max*sizeof(global->redirs[0]) );
        if (new_redirs == NULL)
            return -1;

        global->redirs     = new_redirs;
        global->max_redirs = new_max;
    }

    redir = &global->redirs[ global->num_redirs++ ];

    redir->host_port  = host_port;
    redir->host_udp   = host_udp;
    redir->guest_ip   = guest_ip;
    redir->guest_port = guest_port;

    return 0;
}

static int
control_global_del_redir( ControlGlobal  global,
                          int            host_port,
                          int            host_udp )
{
    int  nn;

    for (nn = 0; nn < global->num_redirs; nn++)
    {
        Redir  redir = &global->redirs[nn];

        if ( redir->host_port == host_port &&
             redir->host_udp  == host_udp  )
        {
            memmove( redir, redir + 1, ((global->num_redirs - nn)-1)*sizeof(*redir) );
            global->num_redirs -= 1;
            return 0;
        }
    }
    /* we didn't find it */
    return -1;
}

/* Detach the socket descriptor from a given ControlClient
 * and return its value. This is useful either when destroying
 * the client, or redirecting the socket to another service.
 *
 * NOTE: this does not close the socket.
 */
static int
control_client_detach( ControlClient  client )
{
    int  result;

    if (client->sock < 0)
        return -1;

    qemu_set_fd_handler( client->sock, NULL, NULL, NULL );
    result = client->sock;
    client->sock = -1;

    return result;
}

static void  control_client_read( void*  _client );  /* forward */

/* Reattach a control client to a given socket.
 * Return the old socket descriptor for the client.
 */
static int
control_client_reattach( ControlClient client, int fd )
{
    int result = control_client_detach(client);
    client->sock = fd;
    qemu_set_fd_handler( fd, control_client_read, NULL, client );
    return result;
}

static void
control_client_destroy( ControlClient  client )
{
    ControlGlobal  global = client->global;
    ControlClient  *pnode = &global->clients;
    int            sock;

    D(( "destroying control client %p\n", client ));

#ifdef CONFIG_STANDALONE_CORE
    if (client == attached_ui_client) {
        attachUiProxy_destroy();
        attached_ui_client = NULL;
    }

    if (client == user_events_client) {
        userEventsImpl_destroy();
        user_events_client = NULL;
    }

    if (client == ui_core_ctl_client) {
        coreCmdImpl_destroy();
        ui_core_ctl_client = NULL;
    }

    if (client == core_ui_ctl_client) {
        uiCmdProxy_destroy();
        core_ui_ctl_client = NULL;
    }
#endif  // CONFIG_STANDALONE_CORE

    sock = control_client_detach( client );
    if (sock >= 0)
        socket_close(sock);

    for ( ;; ) {
        ControlClient  node = *pnode;
        if ( node == NULL )
            break;
        if ( node == client ) {
            *pnode     = node->next;
            node->next = NULL;
            break;
        }
        pnode = &node->next;
    }

    free( client );
}



static void  control_control_write( ControlClient  client, const char*  buff, int  len )
{
    int ret;

    if (len < 0)
        len = strlen(buff);

    while (len > 0) {
        ret = socket_send( client->sock, buff, len);
        if (ret < 0) {
            if (errno != EINTR && errno != EWOULDBLOCK && errno != EAGAIN)
                return;
        } else {
            buff += ret;
            len  -= ret;
        }
    }
}

static int  control_vwrite( ControlClient  client, const char*  format, va_list args )
{
    static char  temp[1024];
    int ret = vsnprintf( temp, sizeof(temp), format, args );
    temp[ sizeof(temp)-1 ] = 0;
    control_control_write( client, temp, -1 );

    return ret;
}

static int  control_write( ControlClient  client, const char*  format, ... )
{
    int ret;
    va_list      args;
    va_start(args, format);
    ret = control_vwrite(client, format, args);
    va_end(args);

    return ret;
}


static ControlClient
control_client_create( Socket         socket,
                       ControlGlobal  global )
{
    ControlClient  client = calloc( sizeof(*client), 1 );

    if (client) {
        socket_set_nodelay( socket );
        socket_set_nonblock( socket );
        client->finished = 0;
        client->global  = global;
        client->sock    = socket;
        client->next    = global->clients;
        global->clients = client;

        qemu_set_fd_handler( socket, control_client_read, NULL, client );
    }
    return client;
}

typedef const struct CommandDefRec_  *CommandDef;

typedef struct CommandDefRec_ {
    const char*  names;
    const char*  abstract;
    const char*  description;
    void        (*descriptor)( ControlClient  client );
    int         (*handler)( ControlClient  client, char* args );
    CommandDef   subcommands;   /* if handler is NULL */

} CommandDefRec;

static const CommandDefRec   main_commands[];  /* forward */

static CommandDef
find_command( char*  input, CommandDef  commands, char*  *pend, char*  *pargs )
{
    int    nn;
    char*  args = strchr(input, ' ');

    if (args != NULL) {
        while (*args == ' ')
            args++;

        if (args[0] == 0)
            args = NULL;
    }

    for (nn = 0; commands[nn].names != NULL; nn++)
    {
        const char*  name = commands[nn].names;
        const char*  sep;

        do {
            int  len, c;

            sep = strchr( name, '|' );
            if (sep)
                len = sep - name;
            else
                len = strlen(name);

            c = input[len];
            if ( !memcmp( name, input, len ) && (c == ' ' || c == 0) ) {
                *pend  = input + len;
                *pargs = args;
                return &commands[nn];
            }

            if (sep)
                name = sep + 1;

        } while (sep != NULL && *name);
    }
    /* NOTE: don't touch *pend and *pargs if no command is found */
    return NULL;
}

static void
dump_help( ControlClient  client,
           CommandDef     cmd,
           const char*    prefix )
{
    if (cmd->description) {
        control_write( client, "%s", cmd->description );
    } else if (cmd->descriptor) {
        cmd->descriptor( client );
    } else
        control_write( client, "%s\r\n", cmd->abstract );

    if (cmd->subcommands) {
        cmd = cmd->subcommands;
        control_write( client, "\r\navailable sub-commands:\r\n" );
        for ( ; cmd->names != NULL; cmd++ ) {
            control_write( client, "   %s %-15s  %s\r\n", prefix, cmd->names, cmd->abstract );
        }
        control_write( client, "\r\n" );
    }
}

static void
control_client_do_command( ControlClient  client )
{
    char*       line     = client->buff;
    char*       args     = NULL;
    CommandDef  commands = main_commands;
    char*       cmdend   = client->buff;
    CommandDef  cmd      = find_command( line, commands, &cmdend, &args );

    if (cmd == NULL) {
        control_write( client, "KO: unknown command, try 'help'\r\n" );
        return;
    }

    for (;;) {
        CommandDef  subcmd;

        if (cmd->handler) {
            if ( !cmd->handler( client, args ) ) {
                control_write( client, "OK\r\n" );
            }
            break;
        }

        /* no handler means we should have sub-commands */
        if (cmd->subcommands == NULL) {
            control_write( client, "KO: internal error: buggy command table for '%.*s'\r\n",
                           cmdend - client->buff, client->buff );
            break;
        }

        /* we need a sub-command here */
        if ( !args ) {
            dump_help( client, cmd, "" );
            control_write( client, "KO: missing sub-command\r\n" );
            break;
        }

        line     = args;
        commands = cmd->subcommands;
        subcmd   = find_command( line, commands, &cmdend, &args );
        if (subcmd == NULL) {
            dump_help( client, cmd, "" );
            control_write( client, "KO:  bad sub-command\r\n" );
            break;
        }
        cmd = subcmd;
    }
}

/* implement the 'help' command */
static int
do_help( ControlClient  client, char*  args )
{
    char*       line;
    char*       start = args;
    char*       end   = start;
    CommandDef  cmd = main_commands;

    /* without arguments, simply dump all commands */
    if (args == NULL) {
        control_write( client, "Android console command help:\r\n\r\n" );
        for ( ; cmd->names != NULL; cmd++ ) {
            control_write( client, "    %-15s  %s\r\n", cmd->names, cmd->abstract );
        }
        control_write( client, "\r\ntry 'help <command>' for command-specific help\r\n" );
        return 0;
    }

    /* with an argument, find the corresponding command */
    for (;;) {
        CommandDef  subcmd;

        line    = args;
        subcmd  = find_command( line, cmd, &end, &args );
        if (subcmd == NULL) {
            control_write( client, "try one of these instead:\r\n\r\n" );
            for ( ; cmd->names != NULL; cmd++ ) {
                control_write( client, "    %.*s %s\r\n",
                              end - start, start, cmd->names );
            }
            control_write( client, "\r\nKO: unknown command\r\n" );
            return -1;
        }

        if ( !args || !subcmd->subcommands ) {
            dump_help( client, subcmd, start );
            return 0;
        }
        cmd = subcmd->subcommands;
    }
}


static void
control_client_read_byte( ControlClient  client, unsigned char  ch )
{
    if (ch == '\r')
    {
        /* filter them out */
    }
    else if (ch == '\n')
    {
        client->buff[ client->buff_len ] = 0;
        control_client_do_command( client );
        if (client->finished)
            return;

        client->buff_len = 0;
    }
    else
    {
        if (client->buff_len >= sizeof(client->buff)-1)
            client->buff_len = 0;

        client->buff[ client->buff_len++ ] = ch;
    }
}

static void
control_client_read( void*  _client )
{
    ControlClient  client = _client;
    unsigned char  buf[4096];
    int            size;

    D(( "in control_client read: " ));
    size = socket_recv( client->sock, buf, sizeof(buf) );
    if (size < 0) {
        D(( "size < 0, exiting with %d: %s\n", errno, errno_str ));
        if (errno != EWOULDBLOCK && errno != EAGAIN)
            control_client_destroy( client );
        return;
    }

    if (size == 0) {
        /* end of connection */
        D(( "end of connection detected !!\n" ));
        control_client_destroy( client );
    }
    else {
        int  nn;
#ifdef _WIN32
#  if DEBUG
        char  temp[16];
        int   count = size > sizeof(temp)-1 ? sizeof(temp)-1 : size;
        for (nn = 0; nn < count; nn++) {
                int  c = buf[nn];
                if (c == '\n')
                        temp[nn] = '!';
            else if (c < 32)
                        temp[nn] = '.';
                else
                    temp[nn] = (char)c;
        }
        temp[nn] = 0;
        D(( "received %d bytes: %s\n", size, temp ));
#  endif
#else
        D(( "received %.*s\n", size, buf ));
#endif
        for (nn = 0; nn < size; nn++) {
            control_client_read_byte( client, buf[nn] );
            if (client->finished) {
                control_client_destroy(client);
                return;
            }
        }
    }
}


/* this function is called on each new client connection */
static void
control_global_accept( void*  _global )
{
    ControlGlobal       global = _global;
    ControlClient       client;
    Socket              fd;

    D(( "control_global_accept: just in (fd=%d)\n", global->listen_fd ));

    for(;;) {
        fd = socket_accept( global->listen_fd, NULL );
        if (fd < 0 && errno != EINTR) {
            D(( "problem in accept: %d: %s\n", errno, errno_str ));
            perror("accept");
            return;
        } else if (fd >= 0) {
            break;
        }
        D(( "relooping in accept()\n" ));
    }

    socket_set_xreuseaddr( fd );

    D(( "control_global_accept: creating new client\n" ));
    client = control_client_create( fd, global );
    if (client) {
        D(( "control_global_accept: new client %p\n", client ));
        control_write( client, "Android Console: type 'help' for a list of commands\r\n" );
        control_write( client, "OK\r\n" );
    }
}


static int
control_global_init( ControlGlobal  global,
                     int            control_port )
{
    Socket  fd;
    int     ret;
    SockAddress  sockaddr;

    memset( global, 0, sizeof(*global) );

    fd = socket_create_inet( SOCKET_STREAM );
    if (fd < 0) {
        perror("socket");
        return -1;
    }

    socket_set_xreuseaddr( fd );

    sock_address_init_inet( &sockaddr, SOCK_ADDRESS_INET_LOOPBACK, control_port );

    ret = socket_bind(fd, &sockaddr );
    if (ret < 0) {
        perror("bind");
        socket_close( fd );
        return -1;
    }

    ret = socket_listen(fd, 0);
    if (ret < 0) {
        perror("listen");
        socket_close( fd );
        return -1;
    }

    socket_set_nonblock(fd);

    global->listen_fd = fd;

    qemu_set_fd_handler( fd, control_global_accept, NULL, global );
    return 0;
}



static int
do_quit( ControlClient  client, char*  args )
{
    client->finished = 1;
    return -1;
}

/********************************************************************************************/
/********************************************************************************************/
/*****                                                                                 ******/
/*****                        N E T W O R K   S E T T I N G S                          ******/
/*****                                                                                 ******/
/********************************************************************************************/
/********************************************************************************************/

static int
do_network_status( ControlClient  client, char*  args )
{
    control_write( client, "Current network status:\r\n" );

    control_write( client, "  download speed:   %8d bits/s (%.1f KB/s)\r\n",
                   (long)qemu_net_download_speed, qemu_net_download_speed/8192. );

    control_write( client, "  upload speed:     %8d bits/s (%.1f KB/s)\r\n",
                   (long)qemu_net_upload_speed, qemu_net_upload_speed/8192. );

    control_write( client, "  minimum latency:  %ld ms\r\n", qemu_net_min_latency );
    control_write( client, "  maximum latency:  %ld ms\r\n", qemu_net_max_latency );
    return 0;
}

static void
dump_network_speeds( ControlClient  client )
{
    const NetworkSpeed*  speed = android_netspeeds;
    const char* const  format = "  %-8s %s\r\n";
    for ( ; speed->name; speed++ ) {
        control_write( client, format, speed->name, speed->display );
    }
    control_write( client, format, "<num>", "selects both upload and download speed" );
    control_write( client, format, "<up>:<down>", "select individual upload/download speeds" );
}


static int
do_network_speed( ControlClient  client, char*  args )
{
    if ( !args ) {
        control_write( client, "KO: missing <speed> argument, see 'help network speed'\r\n" );
        return -1;
    }
    if ( android_parse_network_speed( args ) < 0 ) {
        control_write( client, "KO: invalid <speed> argument, see 'help network speed' for valid values\r\n" );
        return -1;
    }

    netshaper_set_rate( slirp_shaper_in,  qemu_net_download_speed );
    netshaper_set_rate( slirp_shaper_out, qemu_net_upload_speed );

    if (android_modem) {
        amodem_set_data_network_type( android_modem,
                                    android_parse_network_type( args ) );
    }
    return 0;
}

static void
describe_network_speed( ControlClient  client )
{
    control_write( client,
                   "'network speed <speed>' allows you to dynamically change the speed of the emulated\r\n"
                   "network on the device, where <speed> is one of the following:\r\n\r\n" );
    dump_network_speeds( client );
}

static int
do_network_delay( ControlClient  client, char*  args )
{
    if ( !args ) {
        control_write( client, "KO: missing <delay> argument, see 'help network delay'\r\n" );
        return -1;
    }
    if ( android_parse_network_latency( args ) < 0 ) {
        control_write( client, "KO: invalid <delay> argument, see 'help network delay' for valid values\r\n" );
        return -1;
    }
    netdelay_set_latency( slirp_delay_in, qemu_net_min_latency, qemu_net_max_latency );
    return 0;
}

static void
describe_network_delay( ControlClient  client )
{
    control_write( client,
                   "'network delay <latency>' allows you to dynamically change the latency of the emulated\r\n"
                   "network on the device, where <latency> is one of the following:\r\n\r\n" );
    /* XXX: TODO */
}

static int
do_network_capture_start( ControlClient  client, char*  args )
{
    if ( !args ) {
        control_write( client, "KO: missing <file> argument, see 'help network capture start'\r\n" );
        return -1;
    }
    if ( qemu_tcpdump_start(args) < 0) {
        control_write( client, "KO: could not start capture: %s", strerror(errno) );
        return -1;
    }
    return 0;
}

static int
do_network_capture_stop( ControlClient  client, char*  args )
{
    /* no need to return an error here */
    qemu_tcpdump_stop();
    return 0;
}

static const CommandDefRec  network_capture_commands[] =
{
    { "start", "start network capture",
      "'network capture start <file>' starts a new capture of network packets\r\n"
      "into a specific <file>. This will stop any capture already in progress.\r\n"
      "the capture file can later be analyzed by tools like WireShark. It uses\r\n"
      "the libpcap file format.\r\n\r\n"
      "you can stop the capture anytime with 'network capture stop'\r\n", NULL,
      do_network_capture_start, NULL },

    { "stop", "stop network capture",
      "'network capture stop' stops a currently running packet capture, if any.\r\n"
      "you can start one with 'network capture start <file>'\r\n", NULL,
      do_network_capture_stop, NULL },

    { NULL, NULL, NULL, NULL, NULL, NULL }
};

static const CommandDefRec  network_commands[] =
{
    { "status", "dump network status", NULL, NULL,
       do_network_status, NULL },

    { "speed", "change network speed", NULL, describe_network_speed,
      do_network_speed, NULL },

    { "delay", "change network latency", NULL, describe_network_delay,
       do_network_delay, NULL },

    { "capture", "dump network packets to file",
      "allows to start/stop capture of network packets to a file for later analysis\r\n", NULL,
      NULL, network_capture_commands },

    { NULL, NULL, NULL, NULL, NULL, NULL }
};

/********************************************************************************************/
/********************************************************************************************/
/*****                                                                                 ******/
/*****                       P O R T   R E D I R E C T I O N S                         ******/
/*****                                                                                 ******/
/********************************************************************************************/
/********************************************************************************************/

static int
do_redir_list( ControlClient  client, char*  args )
{
    ControlGlobal  global = client->global;

    if (global->num_redirs == 0)
        control_write( client, "no active redirections\r\n" );
    else {
        int  nn;
        for (nn = 0; nn < global->num_redirs; nn++) {
            Redir  redir = &global->redirs[nn];
            control_write( client, "%s:%-5d => %-5d\r\n",
                          redir->host_udp ? "udp" : "tcp",
                          redir->host_port,
                          redir->guest_port );
        }
    }
    return 0;
}

/* parse a protocol:port specification */
static int
redir_parse_proto_port( char*  args, int  *pport, int  *pproto )
{
    int  proto = -1;
    int  len   = 0;
    char*  end;

    if ( !memcmp( args, "tcp:", 4 ) ) {
        proto = 0;
        len   = 4;
    }
    else if ( !memcmp( args, "udp:", 4 ) ) {
        proto = 1;
        len   = 4;
    }
    else
        return 0;

    args   += len;
    *pproto = proto;
    *pport  = strtol( args, &end, 10 );
    if (end == args)
        return 0;

    len += end - args;
    return len;
}

static int
redir_parse_guest_port( char*  arg, int  *pport )
{
    char*  end;

    *pport = strtoul( arg, &end, 10 );
    if (end == arg)
        return 0;

    return end - arg;
}

static Redir
redir_find( ControlGlobal  global, int  port, int  isudp )
{
    int  nn;

    for (nn = 0; nn < global->num_redirs; nn++) {
        Redir  redir = &global->redirs[nn];

        if (redir->host_port == port && redir->host_udp == isudp)
            return redir;
    }
    return NULL;
}


static int
do_redir_add( ControlClient  client, char*  args )
{
    int       len, host_proto, host_port, guest_port;
    uint32_t  guest_ip;
    Redir     redir;

    if ( !args )
        goto BadFormat;

    if (!slirp_is_inited()) {
        control_write( client, "KO: network emulation disabled\r\n");
        return -1;
    }

    len = redir_parse_proto_port( args, &host_port, &host_proto );
    if (len == 0 || args[len] != ':')
        goto BadFormat;

    args += len + 1;
    len = redir_parse_guest_port( args, &guest_port );
    if (len == 0 || args[len] != 0)
        goto BadFormat;

    redir = redir_find( client->global, host_port, host_proto );
    if ( redir != NULL ) {
        control_write( client, "KO: host port already active, use 'redir del' to remove first\r\n" );
        return -1;
    }

    if (inet_strtoip("10.0.2.15", &guest_ip) < 0) {
        control_write( client, "KO: unexpected internal failure when resolving 10.0.2.15\r\n" );
        return -1;
    }

    D(("pattern hport=%d gport=%d proto=%d\n", host_port, guest_port, host_proto ));
    if ( control_global_add_redir( client->global, host_port, host_proto,
                                   guest_ip, guest_port ) < 0 )
    {
        control_write( client, "KO: not enough memory to allocate redirection\r\n" );
        return -1;
    }

    if (slirp_redir(host_proto, host_port, guest_ip, guest_port) < 0) {
        control_write( client, "KO: can't setup redirection, port probably used by another program on host\r\n" );
        control_global_del_redir( client->global, host_port, host_proto );
        return -1;
    }

    return 0;

BadFormat:
    control_write( client, "KO: bad redirection format, try (tcp|udp):hostport:guestport\r\n", -1 );
    return -1;
}


static int
do_redir_del( ControlClient  client, char*  args )
{
    int    len, proto, port;
    Redir  redir;

    if ( !args )
        goto BadFormat;
    len = redir_parse_proto_port( args, &port, &proto );
    if ( len == 0 || args[len] != 0 )
        goto BadFormat;

    redir = redir_find( client->global, port, proto );
    if (redir == NULL) {
        control_write( client, "KO: can't remove unknown redirection (%s:%d)\r\n",
                        proto ? "udp" : "tcp", port );
        return -1;
    }

    slirp_unredir( redir->host_udp, redir->host_port );
    control_global_del_redir( client->global, port, proto );\

    return 0;

BadFormat:
    control_write( client, "KO: bad redirection format, try (tcp|udp):hostport\r\n" );
    return -1;
}

static const CommandDefRec  redir_commands[] =
{
    { "list", "list current redirections",
    "list current port redirections. use 'redir add' and 'redir del' to add and remove them\r\n", NULL,
    do_redir_list, NULL },

    { "add",  "add new redirection",
    "add a new port redirection, arguments must be:\r\n\r\n"
            "  redir add <protocol>:<host-port>:<guest-port>\r\n\r\n"
            "where:   <protocol>     is either 'tcp' or 'udp'\r\n"
            "         <host-port>    a number indicating which port on the host to open\r\n"
            "         <guest-port>   a number indicating which port to route to on the device\r\n"
            "\r\nas an example, 'redir  tcp:5000:6000' will allow any packets sent to\r\n"
            "the host's TCP port 5000 to be routed to TCP port 6000 of the emulated device\r\n", NULL,
    do_redir_add, NULL },

    { "del",  "remove existing redirection",
    "remove a port redirecion that was created with 'redir add', arguments must be:\r\n\r\n"
            "  redir  del <protocol>:<host-port>\r\n\r\n"
            "see the 'help redir add' for the meaning of <protocol> and <host-port>\r\n", NULL,
    do_redir_del, NULL },

    { NULL, NULL, NULL, NULL, NULL, NULL }
};



/********************************************************************************************/
/********************************************************************************************/
/*****                                                                                 ******/
/*****                          C D M A   M O D E M                                    ******/
/*****                                                                                 ******/
/********************************************************************************************/
/********************************************************************************************/

static const struct {
    const char *            name;
    const char *            display;
    ACdmaSubscriptionSource source;
} _cdma_subscription_sources[] = {
    { "nv",            "Read subscription from non-volatile RAM", A_SUBSCRIPTION_NVRAM },
    { "ruim",          "Read subscription from RUIM", A_SUBSCRIPTION_RUIM },
};

static void
dump_subscription_sources( ControlClient client )
{
    int i;
    for (i = 0;
         i < sizeof(_cdma_subscription_sources) / sizeof(_cdma_subscription_sources[0]);
         i++) {
        control_write( client, "    %s: %s\r\n",
                       _cdma_subscription_sources[i].name,
                       _cdma_subscription_sources[i].display );
    }
}

static void
describe_subscription_source( ControlClient client )
{
    control_write( client,
                   "'cdma ssource <ssource>' allows you to specify where to read the subscription from\r\n" );
    dump_subscription_sources( client );
}

static int
do_cdma_ssource( ControlClient  client, char*  args )
{
    int nn;
    if (!args) {
        control_write( client, "KO: missing argument, try 'cdma ssource <source>'\r\n" );
        return -1;
    }

    for (nn = 0; ; nn++) {
        const char*         name    = _cdma_subscription_sources[nn].name;
        ACdmaSubscriptionSource ssource = _cdma_subscription_sources[nn].source;

        if (!name)
            break;

        if (!strcasecmp( args, name )) {
            amodem_set_cdma_subscription_source( android_modem, ssource );
            return 0;
        }
    }
    control_write( client, "KO: Don't know source %s\r\n", args );
    return -1;
}

static int
do_cdma_prl_version( ControlClient client, char * args )
{
    int version = 0;
    char *endptr;

    if (!args) {
        control_write( client, "KO: missing argument, try 'cdma prl_version <version>'\r\n");
        return -1;
    }

    version = strtol(args, &endptr, 0);
    if (endptr != args) {
        amodem_set_cdma_prl_version( android_modem, version );
    }
    return 0;
}
/********************************************************************************************/
/********************************************************************************************/
/*****                                                                                 ******/
/*****                           G S M   M O D E M                                     ******/
/*****                                                                                 ******/
/********************************************************************************************/
/********************************************************************************************/

static const struct {
    const char*         name;
    const char*         display;
    ARegistrationState  state;
} _gsm_states[] = {
    { "unregistered",  "no network available", A_REGISTRATION_UNREGISTERED },
    { "home",          "on local network, non-roaming", A_REGISTRATION_HOME },
    { "roaming",       "on roaming network", A_REGISTRATION_ROAMING },
    { "searching",     "searching networks", A_REGISTRATION_SEARCHING },
    { "denied",        "emergency calls only", A_REGISTRATION_DENIED },
    { "off",           "same as 'unregistered'", A_REGISTRATION_UNREGISTERED },
    { "on",            "same as 'home'", A_REGISTRATION_HOME },
    { NULL, NULL, A_REGISTRATION_UNREGISTERED }
};

static const char*
gsm_state_to_string( ARegistrationState  state )
{
    int  nn;
    for (nn = 0; _gsm_states[nn].name != NULL; nn++) {
        if (state == _gsm_states[nn].state)
            return _gsm_states[nn].name;
    }
    return "<unknown>";
}

static int
do_gsm_status( ControlClient  client, char*  args )
{
    if (args) {
        control_write( client, "KO: no argument required\r\n" );
        return -1;
    }
    if (!android_modem) {
        control_write( client, "KO: modem emulation not running\r\n" );
        return -1;
    }
    control_write( client, "gsm voice state: %s\r\n",
                   gsm_state_to_string(
                       amodem_get_voice_registration(android_modem) ) );
    control_write( client, "gsm data state:  %s\r\n",
                   gsm_state_to_string(
                       amodem_get_data_registration(android_modem) ) );
    return 0;
}


static void
help_gsm_data( ControlClient  client )
{
    int  nn;
    control_write( client,
            "the 'gsm data <state>' allows you to change the state of your GPRS connection\r\n"
            "valid values for <state> are the following:\r\n\r\n" );
    for (nn = 0; ; nn++) {
        const char*         name    = _gsm_states[nn].name;
        const char*         display = _gsm_states[nn].display;

        if (!name)
            break;

        control_write( client, "  %-15s %s\r\n", name, display );
    }
    control_write( client, "\r\n" );
}


static int
do_gsm_data( ControlClient  client, char*  args )
{
    int  nn;

    if (!args) {
        control_write( client, "KO: missing argument, try 'gsm data <state>'\r\n" );
        return -1;
    }

    for (nn = 0; ; nn++) {
        const char*         name    = _gsm_states[nn].name;
        ARegistrationState  state   = _gsm_states[nn].state;

        if (!name)
            break;

        if ( !strcmp( args, name ) ) {
            if (!android_modem) {
                control_write( client, "KO: modem emulation not running\r\n" );
                return -1;
            }
            amodem_set_data_registration( android_modem, state );
            qemu_net_disable = (state != A_REGISTRATION_HOME    &&
                                state != A_REGISTRATION_ROAMING );
            return 0;
        }
    }
    control_write( client, "KO: bad GSM data state name, try 'help gsm data' for list of valid values\r\n" );
    return -1;
}

static void
help_gsm_voice( ControlClient  client )
{
    int  nn;
    control_write( client,
            "the 'gsm voice <state>' allows you to change the state of your GPRS connection\r\n"
            "valid values for <state> are the following:\r\n\r\n" );
    for (nn = 0; ; nn++) {
        const char*         name    = _gsm_states[nn].name;
        const char*         display = _gsm_states[nn].display;

        if (!name)
            break;

        control_write( client, "  %-15s %s\r\n", name, display );
    }
    control_write( client, "\r\n" );
}


static int
do_gsm_voice( ControlClient  client, char*  args )
{
    int  nn;

    if (!args) {
        control_write( client, "KO: missing argument, try 'gsm voice <state>'\r\n" );
        return -1;
    }

    for (nn = 0; ; nn++) {
        const char*         name    = _gsm_states[nn].name;
        ARegistrationState  state   = _gsm_states[nn].state;

        if (!name)
            break;

        if ( !strcmp( args, name ) ) {
            if (!android_modem) {
                control_write( client, "KO: modem emulation not running\r\n" );
                return -1;
            }
            amodem_set_voice_registration( android_modem, state );
            return 0;
        }
    }
    control_write( client, "KO: bad GSM data state name, try 'help gsm voice' for list of valid values\r\n" );
    return -1;
}


static int
gsm_check_number( char*  args )
{
    int  nn;

    for (nn = 0; args[nn] != 0; nn++) {
        int  c = args[nn];
        if ( !isdigit(c) && c != '+' && c != '#' ) {
            return -1;
        }
    }
    if (nn == 0)
        return -1;

    return 0;
}

static int
do_gsm_call( ControlClient  client, char*  args )
{
    /* check that we have a phone number made of digits */
    if (!args) {
        control_write( client, "KO: missing argument, try 'gsm call <phonenumber>'\r\n" );
        return -1;
    }

    if (gsm_check_number(args)) {
        control_write( client, "KO: bad phone number format, use digits, # and + only\r\n" );
        return -1;
    }

    if (!android_modem) {
        control_write( client, "KO: modem emulation not running\r\n" );
        return -1;
    }
    amodem_add_inbound_call( android_modem, args );
    return 0;
}

static int
do_gsm_cancel( ControlClient  client, char*  args )
{
    if (!args) {
        control_write( client, "KO: missing argument, try 'gsm call <phonenumber>'\r\n" );
        return -1;
    }
    if (gsm_check_number(args)) {
        control_write( client, "KO: bad phone number format, use digits, # and + only\r\n" );
        return -1;
    }
    if (!android_modem) {
        control_write( client, "KO: modem emulation not running\r\n" );
        return -1;
    }
    if ( amodem_disconnect_call( android_modem, args ) < 0 ) {
        control_write( client, "KO: could not cancel this number\r\n" );
        return -1;
    }
    return 0;
}


static const char*
call_state_to_string( ACallState  state )
{
    switch (state) {
        case A_CALL_ACTIVE:   return "active";
        case A_CALL_HELD:     return "held";
        case A_CALL_ALERTING: return "ringing";
        case A_CALL_WAITING:  return "waiting";
        case A_CALL_INCOMING: return "incoming";
        default: return "unknown";
    }
}

static int
do_gsm_list( ControlClient  client, char*  args )
{
    /* check that we have a phone number made of digits */
    int   count = amodem_get_call_count( android_modem );
    int   nn;
    for (nn = 0; nn < count; nn++) {
        ACall        call = amodem_get_call( android_modem, nn );
        const char*  dir;

        if (call == NULL)
            continue;

        if (call->dir == A_CALL_OUTBOUND)
            dir = "outbound to ";
         else
            dir = "inbound from";

        control_write( client, "%s %-10s : %s\r\n", dir,
                       call->number, call_state_to_string(call->state) );
    }
    return 0;
}

static int
do_gsm_busy( ControlClient  client, char*  args )
{
    ACall  call;

    if (!args) {
        control_write( client, "KO: missing argument, try 'gsm busy <phonenumber>'\r\n" );
        return -1;
    }
    call = amodem_find_call_by_number( android_modem, args );
    if (call == NULL || call->dir != A_CALL_OUTBOUND) {
        control_write( client, "KO: no current outbound call to number '%s' (call %p)\r\n", args, call );
        return -1;
    }
    if ( amodem_disconnect_call( android_modem, args ) < 0 ) {
        control_write( client, "KO: could not cancel this number\r\n" );
        return -1;
    }
    return 0;
}

static int
do_gsm_hold( ControlClient  client, char*  args )
{
    ACall  call;

    if (!args) {
        control_write( client, "KO: missing argument, try 'gsm out hold <phonenumber>'\r\n" );
        return -1;
    }
    call = amodem_find_call_by_number( android_modem, args );
    if (call == NULL) {
        control_write( client, "KO: no current call to/from number '%s'\r\n", args );
        return -1;
    }
    if ( amodem_update_call( android_modem, args, A_CALL_HELD ) < 0 ) {
        control_write( client, "KO: could put this call on hold\r\n" );
        return -1;
    }
    return 0;
}


static int
do_gsm_accept( ControlClient  client, char*  args )
{
    ACall  call;

    if (!args) {
        control_write( client, "KO: missing argument, try 'gsm accept <phonenumber>'\r\n" );
        return -1;
    }
    call = amodem_find_call_by_number( android_modem, args );
    if (call == NULL) {
        control_write( client, "KO: no current call to/from number '%s'\r\n", args );
        return -1;
    }
    if ( amodem_update_call( android_modem, args, A_CALL_ACTIVE ) < 0 ) {
        control_write( client, "KO: could not activate this call\r\n" );
        return -1;
    }
    return 0;
}

static int
do_gsm_signal( ControlClient  client, char*  args )
{
      enum { SIGNAL_RSSI = 0, SIGNAL_BER, NUM_SIGNAL_PARAMS };
      char*   p = args;
      int     top_param = -1;
      int     params[ NUM_SIGNAL_PARAMS ];

      static  int  last_ber = 99;

      if (!p)
          p = "";

      /* tokenize */
      while (*p) {
          char*   end;
          int  val = strtol( p, &end, 10 );

          if (end == p) {
              control_write( client, "KO: argument '%s' is not a number\n", p );
              return -1;
          }

          params[++top_param] = val;
          if (top_param + 1 == NUM_SIGNAL_PARAMS)
              break;

          p = end;
          while (*p && (p[0] == ' ' || p[0] == '\t'))
              p += 1;
      }

      /* sanity check */
      if (top_param < SIGNAL_RSSI) {
          control_write( client, "KO: not enough arguments: see 'help gsm signal' for details\r\n" );
          return -1;
      }

      int rssi = params[SIGNAL_RSSI];
      if ((rssi < 0 || rssi > 31) && rssi != 99) {
          control_write( client, "KO: invalid RSSI - must be 0..31 or 99\r\n");
          return -1;
      }

      /* check ber is 0..7 or 99 */
      if (top_param >= SIGNAL_BER) {
          int ber = params[SIGNAL_BER];
          if ((ber < 0 || ber > 7) && ber != 99) {
              control_write( client, "KO: invalid BER - must be 0..7 or 99\r\n");
              return -1;
          }
          last_ber = ber;
      }

      amodem_set_signal_strength( android_modem, rssi, last_ber );

      return 0;
  }


#if 0
static const CommandDefRec  gsm_in_commands[] =
{
    { "new", "create a new 'waiting' inbound call",
    "'gsm in create <phonenumber>' creates a new inbound phone call, placed in\r\n"
    "the 'waiting' state by default, until the system answers/holds/closes it\r\n", NULL
    do_gsm_in_create, NULL },

    { "hold", "change the state of an oubtound call to 'held'",
    "change the state of an outbound call to 'held'. this is only possible\r\n"
    "if the call in the 'waiting' or 'active' state\r\n", NULL,
    do_gsm_out_hold, NULL },

    { "accept", "change the state of an outbound call to 'active'",
    "change the state of an outbound call to 'active'. this is only possible\r\n"
    "if the call is in the 'waiting' or 'held' state\r\n", NULL,
    do_gsm_out_accept, NULL },

    { NULL, NULL, NULL, NULL, NULL, NULL }
};
#endif


static const CommandDefRec  cdma_commands[] =
{
    { "ssource", "Set the current CDMA subscription source",
      NULL, describe_subscription_source,
      do_cdma_ssource, NULL },
    { "prl_version", "Dump the current PRL version",
      NULL, NULL,
      do_cdma_prl_version, NULL },
};

static const CommandDefRec  gsm_commands[] =
{
    { "list", "list current phone calls",
    "'gsm list' lists all inbound and outbound calls and their state\r\n", NULL,
    do_gsm_list, NULL },

    { "call", "create inbound phone call",
    "'gsm call <phonenumber>' allows you to simulate a new inbound call\r\n", NULL,
    do_gsm_call, NULL },

    { "busy", "close waiting outbound call as busy",
    "'gsm busy <remoteNumber>' closes an outbound call, reporting\r\n"
    "the remote phone as busy. only possible if the call is 'waiting'.\r\n", NULL,
    do_gsm_busy, NULL },

    { "hold", "change the state of an oubtound call to 'held'",
    "'gsm hold <remoteNumber>' change the state of a call to 'held'. this is only possible\r\n"
    "if the call in the 'waiting' or 'active' state\r\n", NULL,
    do_gsm_hold, NULL },

    { "accept", "change the state of an outbound call to 'active'",
    "'gsm accept <remoteNumber>' change the state of a call to 'active'. this is only possible\r\n"
    "if the call is in the 'waiting' or 'held' state\r\n", NULL,
    do_gsm_accept, NULL },

    { "cancel", "disconnect an inbound or outbound phone call",
    "'gsm cancel <phonenumber>' allows you to simulate the end of an inbound or outbound call\r\n", NULL,
    do_gsm_cancel, NULL },

    { "data", "modify data connection state", NULL, help_gsm_data,
    do_gsm_data, NULL },

    { "voice", "modify voice connection state", NULL, help_gsm_voice,
    do_gsm_voice, NULL },

    { "status", "display GSM status",
    "'gsm status' displays the current state of the GSM emulation\r\n", NULL,
    do_gsm_status, NULL },

    { "signal", "set sets the rssi and ber",
    "'gsm signal <rssi> [<ber>]' changes the reported strength and error rate on next (15s) update.\r\n"
    "rssi range is 0..31 and 99 for unknown\r\n"
    "ber range is 0..7 percent and 99 for unknown\r\n",
    NULL, do_gsm_signal, NULL },

    { NULL, NULL, NULL, NULL, NULL, NULL }
};

/********************************************************************************************/
/********************************************************************************************/
/*****                                                                                 ******/
/*****                           S M S   C O M M A N D                                 ******/
/*****                                                                                 ******/
/********************************************************************************************/
/********************************************************************************************/

static int
do_sms_send( ControlClient  client, char*  args )
{
    char*          p;
    int            textlen;
    SmsAddressRec  sender;
    SmsPDU*        pdus;
    int            nn;

    /* check that we have a phone number made of digits */
    if (!args) {
    MissingArgument:
        control_write( client, "KO: missing argument, try 'sms send <phonenumber> <text message>'\r\n" );
        return -1;
    }
    p = strchr( args, ' ' );
    if (!p) {
        goto MissingArgument;
    }

    if ( sms_address_from_str( &sender, args, p - args ) < 0 ) {
        control_write( client, "KO: bad phone number format, must be [+](0-9)*\r\n" );
        return -1;
    }


    /* un-secape message text into proper utf-8 (conversion happens in-site) */
    p      += 1;
    textlen = strlen(p);
    textlen = sms_utf8_from_message_str( p, textlen, (unsigned char*)p, textlen );
    if (textlen < 0) {
        control_write( client, "message must be utf8 and can use the following escapes:\r\n"
                       "    \\n      for a newline\r\n"
                       "    \\xNN    where NN are two hexadecimal numbers\r\n"
                       "    \\uNNNN  where NNNN are four hexadecimal numbers\r\n"
                       "    \\\\     to send a '\\' character\r\n\r\n"
                       "    anything else is an error\r\n"
                       "KO: badly formatted text\r\n" );
        return -1;
    }

    if (!android_modem) {
        control_write( client, "KO: modem emulation not running\r\n" );
        return -1;
    }

    /* create a list of SMS PDUs, then send them */
    pdus = smspdu_create_deliver_utf8( (cbytes_t)p, textlen, &sender, NULL );
    if (pdus == NULL) {
        control_write( client, "KO: internal error when creating SMS-DELIVER PDUs\n" );
        return -1;
    }

    for (nn = 0; pdus[nn] != NULL; nn++)
        amodem_receive_sms( android_modem, pdus[nn] );

    smspdu_free_list( pdus );
    return 0;
}

static int
do_sms_sendpdu( ControlClient  client, char*  args )
{
    SmsPDU  pdu;

    /* check that we have a phone number made of digits */
    if (!args) {
        control_write( client, "KO: missing argument, try 'sms sendpdu <hexstring>'\r\n" );
        return -1;
    }

    if (!android_modem) {
        control_write( client, "KO: modem emulation not running\r\n" );
        return -1;
    }

    pdu = smspdu_create_from_hex( args, strlen(args) );
    if (pdu == NULL) {
        control_write( client, "KO: badly formatted <hexstring>\r\n" );
        return -1;
    }

    amodem_receive_sms( android_modem, pdu );
    smspdu_free( pdu );
    return 0;
}

static const CommandDefRec  sms_commands[] =
{
    { "send", "send inbound SMS text message",
    "'sms send <phonenumber> <message>' allows you to simulate a new inbound sms message\r\n", NULL,
    do_sms_send, NULL },

    { "pdu", "send inbound SMS PDU",
    "'sms pdu <hexstring>' allows you to simulate a new inbound sms PDU\r\n"
    "(used internally when one emulator sends SMS messages to another instance).\r\n"
    "you probably don't want to play with this at all\r\n", NULL,
    do_sms_sendpdu, NULL },

    { NULL, NULL, NULL, NULL, NULL, NULL }
};

static void
do_control_write(void* data, const char* string)
{
    control_write((ControlClient)data, string);
}

static int
do_power_display( ControlClient client, char*  args )
{
    goldfish_battery_display(do_control_write, client);
    return 0;
}

static int
do_ac_state( ControlClient  client, char*  args )
{
    if (args) {
        if (strcasecmp(args, "on") == 0) {
            goldfish_battery_set_prop(1, POWER_SUPPLY_PROP_ONLINE, 1);
            return 0;
        }
        if (strcasecmp(args, "off") == 0) {
            goldfish_battery_set_prop(1, POWER_SUPPLY_PROP_ONLINE, 0);
            return 0;
        }
    }

    control_write( client, "KO: Usage: \"ac on\" or \"ac off\"\n" );
    return -1;
}

static int
do_battery_status( ControlClient  client, char*  args )
{
    if (args) {
        if (strcasecmp(args, "unknown") == 0) {
            goldfish_battery_set_prop(0, POWER_SUPPLY_PROP_STATUS, POWER_SUPPLY_STATUS_UNKNOWN);
            return 0;
        }
        if (strcasecmp(args, "charging") == 0) {
            goldfish_battery_set_prop(0, POWER_SUPPLY_PROP_STATUS, POWER_SUPPLY_STATUS_CHARGING);
            return 0;
        }
        if (strcasecmp(args, "discharging") == 0) {
            goldfish_battery_set_prop(0, POWER_SUPPLY_PROP_STATUS, POWER_SUPPLY_STATUS_DISCHARGING);
            return 0;
        }
        if (strcasecmp(args, "not-charging") == 0) {
            goldfish_battery_set_prop(0, POWER_SUPPLY_PROP_STATUS, POWER_SUPPLY_STATUS_NOT_CHARGING);
            return 0;
        }
        if (strcasecmp(args, "full") == 0) {
            goldfish_battery_set_prop(0, POWER_SUPPLY_PROP_STATUS, POWER_SUPPLY_STATUS_FULL);
            return 0;
        }
    }

    control_write( client, "KO: Usage: \"status unknown|charging|discharging|not-charging|full\"\n" );
    return -1;
}

static int
do_battery_present( ControlClient  client, char*  args )
{
    if (args) {
        if (strcasecmp(args, "true") == 0) {
            goldfish_battery_set_prop(0, POWER_SUPPLY_PROP_PRESENT, 1);
            return 0;
        }
        if (strcasecmp(args, "false") == 0) {
            goldfish_battery_set_prop(0, POWER_SUPPLY_PROP_PRESENT, 0);
            return 0;
        }
    }

    control_write( client, "KO: Usage: \"present true\" or \"present false\"\n" );
    return -1;
}

static int
do_battery_health( ControlClient  client, char*  args )
{
    if (args) {
        if (strcasecmp(args, "unknown") == 0) {
            goldfish_battery_set_prop(0, POWER_SUPPLY_PROP_HEALTH, POWER_SUPPLY_HEALTH_UNKNOWN);
            return 0;
        }
        if (strcasecmp(args, "good") == 0) {
            goldfish_battery_set_prop(0, POWER_SUPPLY_PROP_HEALTH, POWER_SUPPLY_HEALTH_GOOD);
            return 0;
        }
        if (strcasecmp(args, "overheat") == 0) {
            goldfish_battery_set_prop(0, POWER_SUPPLY_PROP_HEALTH, POWER_SUPPLY_HEALTH_OVERHEAT);
            return 0;
        }
        if (strcasecmp(args, "dead") == 0) {
            goldfish_battery_set_prop(0, POWER_SUPPLY_PROP_HEALTH, POWER_SUPPLY_HEALTH_DEAD);
            return 0;
        }
        if (strcasecmp(args, "overvoltage") == 0) {
            goldfish_battery_set_prop(0, POWER_SUPPLY_PROP_HEALTH, POWER_SUPPLY_HEALTH_OVERVOLTAGE);
            return 0;
        }
        if (strcasecmp(args, "failure") == 0) {
            goldfish_battery_set_prop(0, POWER_SUPPLY_PROP_HEALTH, POWER_SUPPLY_HEALTH_UNSPEC_FAILURE);
            return 0;
        }
    }

    control_write( client, "KO: Usage: \"health unknown|good|overheat|dead|overvoltage|failure\"\n" );
    return -1;
}

static int
do_battery_capacity( ControlClient  client, char*  args )
{
    if (args) {
        int capacity;

        if (sscanf(args, "%d", &capacity) == 1 && capacity >= 0 && capacity <= 100) {
            goldfish_battery_set_prop(0, POWER_SUPPLY_PROP_CAPACITY, capacity);
            return 0;
        }
    }

    control_write( client, "KO: Usage: \"capacity <percentage>\"\n" );
    return -1;
}


static const CommandDefRec  power_commands[] =
{
    { "display", "display battery and charger state",
    "display battery and charger state\r\n", NULL,
    do_power_display, NULL },

    { "ac", "set AC charging state",
    "'ac on|off' allows you to set the AC charging state to on or off\r\n", NULL,
    do_ac_state, NULL },

    { "status", "set battery status",
    "'status unknown|charging|discharging|not-charging|full' allows you to set battery status\r\n", NULL,
    do_battery_status, NULL },

    { "present", "set battery present state",
    "'present true|false' allows you to set battery present state to true or false\r\n", NULL,
    do_battery_present, NULL },

    { "health", "set battery health state",
    "'health unknown|good|overheat|dead|overvoltage|failure' allows you to set battery health state\r\n", NULL,
    do_battery_health, NULL },

    { "capacity", "set battery capacity state",
    "'capacity <percentage>' allows you to set battery capacity to a value 0 - 100\r\n", NULL,
    do_battery_capacity, NULL },

    { NULL, NULL, NULL, NULL, NULL, NULL }
};

/********************************************************************************************/
/********************************************************************************************/
/*****                                                                                 ******/
/*****                         E  V  E  N  T   C O M M A N D S                         ******/
/*****                                                                                 ******/
/********************************************************************************************/
/********************************************************************************************/


static int
do_event_send( ControlClient  client, char*  args )
{
    char*   p;

    if (!args) {
        control_write( client, "KO: Usage: event send <type>:<code>:<value> ...\r\n" );
        return -1;
    }

    p = args;
    while (*p) {
        char*  q;
        char   temp[128];
        int    type, code, value, ret;

        p += strspn( p, " \t" );  /* skip spaces */
        if (*p == 0)
            break;

        q  = p + strcspn( p, " \t" );

        if (q == p)
            break;

        snprintf(temp, sizeof temp, "%.*s", q-p, p);
        ret = android_event_from_str( temp, &type, &code, &value );
        if (ret < 0) {
            if (ret == -1) {
                control_write( client,
                               "KO: invalid event type in '%.*s', try 'event list types' for valid values\r\n",
                               q-p, p );
            } else if (ret == -2) {
                control_write( client,
                               "KO: invalid event code in '%.*s', try 'event list codes <type>' for valid values\r\n",
                               q-p, p );
            } else {
                control_write( client,
                               "KO: invalid event value in '%.*s', must be an integer\r\n",
                               q-p, p);
            }
            return -1;
        }

        user_event_generic( type, code, value );
        p = q;
    }
    return 0;
}

static int
do_event_types( ControlClient  client, char*  args )
{
    int  count = android_event_get_type_count();
    int  nn;

    control_write( client, "event <type> can be an integer or one of the following aliases\r\n" );
    for (nn = 0; nn < count; nn++) {
        char  tmp[16];
        char* p = tmp;
        char* end = p + sizeof(tmp);
        int   count2 = android_event_get_code_count( nn );;

        p = android_event_bufprint_type_str( p, end, nn );

        control_write( client, "    %-8s", tmp );
        if (count2 > 0)
            control_write( client, "  (%d code aliases)", count2 );

        control_write( client, "\r\n" );
    }
    return 0;
}

static int
do_event_codes( ControlClient  client, char*  args )
{
    int  count;
    int  nn, type, dummy;

    if (!args) {
        control_write( client, "KO: argument missing, try 'event codes <type>'\r\n" );
        return -1;
    }

    if ( android_event_from_str( args, &type, &dummy, &dummy ) < 0 ) {
        control_write( client, "KO: bad argument, see 'event types' for valid values\r\n" );
        return -1;
    }

    count = android_event_get_code_count( type );
    if (count == 0) {
        control_write( client, "no code aliases defined for this type\r\n" );
    } else {
        control_write( client, "type '%s' accepts the following <code> aliases:\r\n",
                       args );
        for (nn = 0; nn < count; nn++) {
            char  temp[20], *p = temp, *end = p + sizeof(temp);
            android_event_bufprint_code_str( p, end, type, nn );
            control_write( client, "    %-12s\r\n", temp );
        }
    }

    return 0;
}

static __inline__ int
utf8_next( unsigned char* *pp, unsigned char*  end )
{
    unsigned char*  p      = *pp;
    int             result = -1;

    if (p < end) {
        int  c= *p++;
        if (c >= 128) {
            if ((c & 0xe0) == 0xc0)
                c &= 0x1f;
            else if ((c & 0xf0) == 0xe0)
                c &= 0x0f;
            else
                c &= 0x07;

            while (p < end && (p[0] & 0xc0) == 0x80) {
                c = (c << 6) | (p[0] & 0x3f);
            }
        }
        result = c;
        *pp    = p;
    }
    return result;
}

static int
do_event_text( ControlClient  client, char*  args )
{
    AKeycodeBuffer keycodes;
    unsigned char*  p   = (unsigned char*) args;
    unsigned char*  end = p + strlen(args);
    int             textlen;
    const AKeyCharmap* charmap;

    if (!args) {
        control_write( client, "KO: argument missing, try 'event text <message>'\r\n" );
        return -1;
    }

    /* Get active charmap. */
    charmap = android_get_charmap();
    if (charmap == NULL) {
        control_write( client, "KO: no character map active in current device layout/config\r\n" );
        return -1;
    }

    keycodes.keycode_count = 0;

    /* un-secape message text into proper utf-8 (conversion happens in-site) */
    textlen = strlen((char*)p);
    textlen = sms_utf8_from_message_str( args, textlen, (unsigned char*)p, textlen );
    if (textlen < 0) {
        control_write( client, "message must be utf8 and can use the following escapes:\r\n"
                       "    \\n      for a newline\r\n"
                       "    \\xNN    where NN are two hexadecimal numbers\r\n"
                       "    \\uNNNN  where NNNN are four hexadecimal numbers\r\n"
                       "    \\\\     to send a '\\' character\r\n\r\n"
                       "    anything else is an error\r\n"
                       "KO: badly formatted text\r\n" );
        return -1;
    }

    end = p + textlen;
    while (p < end) {
        int  c = utf8_next( &p, end );
        if (c <= 0)
            break;

        android_charmap_reverse_map_unicode( NULL, (unsigned)c, 1, &keycodes );
        android_charmap_reverse_map_unicode( NULL, (unsigned)c, 0, &keycodes );
        android_keycodes_flush( &keycodes );
    }

    return 0;
}

static const CommandDefRec  event_commands[] =
{
    { "send", "send a series of events to the kernel",
    "'event send <type>:<code>:<value> ...' allows your to send one or more hardware events\r\n"
    "to the Android kernel. you can use text names or integers for <type> and <code>\r\n", NULL,
    do_event_send, NULL },

    { "types", "list all <type> aliases",
    "'event types' list all <type> string aliases supported by the 'event' subcommands\r\n",
    NULL, do_event_types, NULL },

    { "codes", "list all <code> aliases for a given <type>",
    "'event codes <type>' lists all <code> string aliases for a given event <type>\r\n",
    NULL, do_event_codes, NULL },

    { "text", "simulate keystrokes from a given text",
    "'event text <message>' allows you to simulate keypresses to generate a given text\r\n"
    "message. <message> must be an utf-8 string. Unicode points will be reverse-mapped\r\n"
    "according to the current device keyboard. unsupported characters will be discarded\r\n"
    "silently\r\n", NULL, do_event_text, NULL },

    { NULL, NULL, NULL, NULL, NULL, NULL }
};


/********************************************************************************************/
/********************************************************************************************/
/*****                                                                                 ******/
/*****                      S N A P S H O T   C O M M A N D S                          ******/
/*****                                                                                 ******/
/********************************************************************************************/
/********************************************************************************************/

static int
control_write_out_cb(void* opaque, const char* str, int strsize)
{
    ControlClient client = opaque;
    control_control_write(client, str, strsize);
    return strsize;
}

static int
control_write_err_cb(void* opaque, const char* str, int strsize)
{
    int ret = 0;
    ControlClient client = opaque;
    ret += control_write(client, "KO: ");
    control_control_write(client, str, strsize);
    return ret + strsize;
}

static int
do_snapshot_list( ControlClient  client, char*  args )
{
    int64_t ret;
    Monitor *out = monitor_fake_new(client, control_write_out_cb);
    Monitor *err = monitor_fake_new(client, control_write_err_cb);
    do_info_snapshots(out, err);
    ret = monitor_fake_get_bytes(err);
    monitor_fake_free(err);
    monitor_fake_free(out);

    return ret > 0;
}

static int
do_snapshot_save( ControlClient  client, char*  args )
{
    int64_t ret;

    if (args == NULL) {
        control_write(client, "KO: argument missing, try 'avd snapshot save <name>'\r\n");
        return -1;
    }

    Monitor *err = monitor_fake_new(client, control_write_err_cb);
    do_savevm(err, args);
    ret = monitor_fake_get_bytes(err);
    monitor_fake_free(err);

    return ret > 0; // no output on error channel indicates success
}

static int
do_snapshot_load( ControlClient  client, char*  args )
{
    int64_t ret;

    if (args == NULL) {
        control_write(client, "KO: argument missing, try 'avd snapshot load <name>'\r\n");
        return -1;
    }

    Monitor *err = monitor_fake_new(client, control_write_err_cb);
    do_loadvm(err, args);
    ret = monitor_fake_get_bytes(err);
    monitor_fake_free(err);

    return ret > 0;
}

static int
do_snapshot_del( ControlClient  client, char*  args )
{
    int64_t ret;

    if (args == NULL) {
        control_write(client, "KO: argument missing, try 'avd snapshot del <name>'\r\n");
        return -1;
    }

    Monitor *err = monitor_fake_new(client, control_write_err_cb);
    do_delvm(err, args);
    ret = monitor_fake_get_bytes(err);
    monitor_fake_free(err);

    return ret > 0;
}

static const CommandDefRec  snapshot_commands[] =
{
    { "list", "list available state snapshots",
    "'avd snapshot list' will show a list of all state snapshots that can be loaded\r\n",
    NULL, do_snapshot_list, NULL },

    { "save", "save state snapshot",
    "'avd snapshot save <name>' will save the current (run-time) state to a snapshot with the given name\r\n",
    NULL, do_snapshot_save, NULL },

    { "load", "load state snapshot",
    "'avd snapshot load <name>' will load the state snapshot of the given name\r\n",
    NULL, do_snapshot_load, NULL },

    { "del", "delete state snapshot",
    "'avd snapshot del <name>' will delete the state snapshot with the given name\r\n",
    NULL, do_snapshot_del, NULL },

    { NULL, NULL, NULL, NULL, NULL, NULL }
};



/********************************************************************************************/
/********************************************************************************************/
/*****                                                                                 ******/
/*****                               V M   C O M M A N D S                             ******/
/*****                                                                                 ******/
/********************************************************************************************/
/********************************************************************************************/

static int
do_avd_stop( ControlClient  client, char*  args )
{
    if (!vm_running) {
        control_write( client, "KO: virtual device already stopped\r\n" );
        return -1;
    }
    vm_stop(EXCP_INTERRUPT);
    return 0;
}

static int
do_avd_start( ControlClient  client, char*  args )
{
    if (vm_running) {
        control_write( client, "KO: virtual device already running\r\n" );
        return -1;
    }
    vm_start();
    return 0;
}

static int
do_avd_status( ControlClient  client, char*  args )
{
    control_write( client, "virtual device is %s\r\n", vm_running ? "running" : "stopped" );
    return 0;
}

static int
do_avd_name( ControlClient  client, char*  args )
{
    control_write( client, "%s\r\n", android_hw->avd_name);
    return 0;
}

static const CommandDefRec  vm_commands[] =
{
    { "stop", "stop the virtual device",
    "'avd stop' stops the virtual device immediately, use 'avd start' to continue execution\r\n",
    NULL, do_avd_stop, NULL },

    { "start", "start/restart the virtual device",
    "'avd start' will start or continue the virtual device, use 'avd stop' to stop it\r\n",
    NULL, do_avd_start, NULL },

    { "status", "query virtual device status",
    "'avd status' will indicate whether the virtual device is running or not\r\n",
    NULL, do_avd_status, NULL },

    { "name", "query virtual device name",
    "'avd name' will return the name of this virtual device\r\n",
    NULL, do_avd_name, NULL },

    { "snapshot", "state snapshot commands",
    "allows you to save and restore the virtual device state in snapshots\r\n",
    NULL, NULL, snapshot_commands },

    { NULL, NULL, NULL, NULL, NULL, NULL }
};

/********************************************************************************************/
/********************************************************************************************/
/*****                                                                                 ******/
/*****                             G E O   C O M M A N D S                             ******/
/*****                                                                                 ******/
/********************************************************************************************/
/********************************************************************************************/

static int
do_geo_nmea( ControlClient  client, char*  args )
{
    if (!args) {
        control_write( client, "KO: NMEA sentence missing, try 'help geo nmea'\r\n" );
        return -1;
    }
    if (!android_gps_cs) {
        control_write( client, "KO: no GPS emulation in this virtual device\r\n" );
        return -1;
    }
    android_gps_send_nmea( args );
    return 0;
}

static int
do_geo_fix( ControlClient  client, char*  args )
{
    // GEO_SAT2 provides bug backwards compatibility.
    enum { GEO_LONG = 0, GEO_LAT, GEO_ALT, GEO_SAT, GEO_SAT2, NUM_GEO_PARAMS };
    char*   p = args;
    int     top_param = -1;
    double  params[ NUM_GEO_PARAMS ];
    int     n_satellites = 1;

    static  int     last_time = 0;
    static  double  last_altitude = 0.;

    if (!p)
        p = "";

    /* tokenize */
    while (*p) {
        char*   end;
        double  val = strtod( p, &end );

        if (end == p) {
            control_write( client, "KO: argument '%s' is not a number\n", p );
            return -1;
        }

        params[++top_param] = val;
        if (top_param + 1 == NUM_GEO_PARAMS)
            break;

        p = end;
        while (*p && (p[0] == ' ' || p[0] == '\t'))
            p += 1;
    }

    /* sanity check */
    if (top_param < GEO_LAT) {
        control_write( client, "KO: not enough arguments: see 'help geo fix' for details\r\n" );
        return -1;
    }

    /* check number of satellites, must be integer between 1 and 12 */
    if (top_param >= GEO_SAT) {
        int sat_index = (top_param >= GEO_SAT2) ? GEO_SAT2 : GEO_SAT;
        n_satellites = (int) params[sat_index];
        if (n_satellites != params[sat_index]
            || n_satellites < 1 || n_satellites > 12) {
            control_write( client, "KO: invalid number of satellites. Must be an integer between 1 and 12\r\n");
            return -1;
        }
    }

    /* generate an NMEA sentence for this fix */
    {
        STRALLOC_DEFINE(s);
        double   val;
        int      deg, min;
        char     hemi;

        /* format overview:
         *    time of fix      123519     12:35:19 UTC
         *    latitude         4807.038   48 degrees, 07.038 minutes
         *    north/south      N or S
         *    longitude        01131.000  11 degrees, 31. minutes
         *    east/west        E or W
         *    fix quality      1          standard GPS fix
         *    satellites       1 to 12    number of satellites being tracked
         *    HDOP             <dontcare> horizontal dilution
         *    altitude         546.       altitude above sea-level
         *    altitude units   M          to indicate meters
         *    diff             <dontcare> height of sea-level above ellipsoid
         *    diff units       M          to indicate meters (should be <dontcare>)
         *    dgps age         <dontcare> time in seconds since last DGPS fix
         *    dgps sid         <dontcare> DGPS station id
         */

        /* first, the time */
        stralloc_add_format( s, "$GPGGA,%06d", last_time );
        last_time ++;

        /* then the latitude */
        hemi = 'N';
        val  = params[GEO_LAT];
        if (val < 0) {
            hemi = 'S';
            val  = -val;
        }
        deg = (int) val;
        val = 60*(val - deg);
        min = (int) val;
        val = 10000*(val - min);
        stralloc_add_format( s, ",%02d%02d.%04d,%c", deg, min, (int)val, hemi );

        /* the longitude */
        hemi = 'E';
        val  = params[GEO_LONG];
        if (val < 0) {
            hemi = 'W';
            val  = -val;
        }
        deg = (int) val;
        val = 60*(val - deg);
        min = (int) val;
        val = 10000*(val - min);
        stralloc_add_format( s, ",%02d%02d.%04d,%c", deg, min, (int)val, hemi );

        /* bogus fix quality, satellite count and dilution */
        stralloc_add_format( s, ",1,%02d,", n_satellites );

        /* optional altitude + bogus diff */
        if (top_param >= GEO_ALT) {
            stralloc_add_format( s, ",%.1g,M,0.,M", params[GEO_ALT] );
            last_altitude = params[GEO_ALT];
        } else {
            stralloc_add_str( s, ",,,," );
        }
        /* bogus rest and checksum */
        stralloc_add_str( s, ",,,*47" );

        /* send it, then free */
        android_gps_send_nmea( stralloc_cstr(s) );
        stralloc_reset( s );
    }
    return 0;
}

static const CommandDefRec  geo_commands[] =
{
    { "nmea", "send an GPS NMEA sentence",
    "'geo nema <sentence>' sends a NMEA 0183 sentence to the emulated device, as\r\n"
    "if it came from an emulated GPS modem. <sentence> must begin with '$GP'. only\r\n"
    "'$GPGGA' and '$GPRCM' sentences are supported at the moment.\r\n",
    NULL, do_geo_nmea, NULL },

    { "fix", "send a simple GPS fix",
    "'geo fix <longitude> <latitude> [<altitude> [<satellites>]]'\r\n"
    " allows you to send a simple GPS fix to the emulated system.\r\n"
    " The parameters are:\r\n\r\n"
    "  <longitude>   longitude, in decimal degrees\r\n"
    "  <latitude>    latitude, in decimal degrees\r\n"
    "  <altitude>    optional altitude in meters\r\n"
    "  <satellites>  number of satellites being tracked (1-12)\r\n"
    "\r\n",
    NULL, do_geo_fix, NULL },

    { NULL, NULL, NULL, NULL, NULL, NULL }
};


/********************************************************************************************/
/********************************************************************************************/
/*****                                                                                 ******/
/*****                        S E N S O R S  C O M M A N D S                           ******/
/*****                                                                                 ******/
/********************************************************************************************/
/********************************************************************************************/

/* For sensors user prompt string size.*/
#define SENSORS_INFO_SIZE 150

/* Get sensor data - (a,b,c) from sensor name */
static int
do_sensors_get( ControlClient client, char* args )
{
    if (! args) {
        control_write( client, "KO: Usage: \"get <sensorname>\"\n" );
        return -1;
    }

    int status = SENSOR_STATUS_UNKNOWN;
    char sensor[strlen(args) + 1];
    if (1 != sscanf( args, "%s", &sensor[0] ))
        goto SENSOR_STATUS_ERROR;

    int sensor_id = android_sensors_get_id_from_name( sensor );
    char buffer[SENSORS_INFO_SIZE] = { 0 };
    float a, b, c;

    if (sensor_id < 0) {
        status = sensor_id;
        goto SENSOR_STATUS_ERROR;
    } else {
        status = android_sensors_get( sensor_id, &a, &b, &c );
        if (status != SENSOR_STATUS_OK)
            goto SENSOR_STATUS_ERROR;
        snprintf( buffer, sizeof(buffer),
                "%s = %g:%g:%g\r\n", sensor, a, b, c );
        do_control_write( client, buffer );
        return 0;
    }

SENSOR_STATUS_ERROR:
    switch(status) {
    case SENSOR_STATUS_NO_SERVICE:
        snprintf( buffer, sizeof(buffer), "KO: No sensor service found!\r\n" );
        break;
    case SENSOR_STATUS_DISABLED:
        snprintf( buffer, sizeof(buffer), "KO: '%s' sensor is disabled.\r\n", sensor );
        break;
    case SENSOR_STATUS_UNKNOWN:
        snprintf( buffer, sizeof(buffer),
                "KO: unknown sensor name: %s, run 'sensor status' to get available sensors.\r\n", sensor );
        break;
    default:
        snprintf( buffer, sizeof(buffer), "KO: '%s' sensor: exception happens.\r\n", sensor );
    }
    do_control_write( client, buffer );
    return -1;
}

/* set sensor data - (a,b,c) from sensor name */
static int
do_sensors_set( ControlClient client, char* args )
{
    if (! args) {
        control_write( client, "KO: Usage: \"set <sensorname> <value-a>[:<value-b>[:<value-c>]]\"\n" );
        return -1;
    }

    int status;
    char* sensor;
    char* value;
    char* args_dup = strdup( args );
    if (args_dup == NULL) {
        control_write( client, "KO: Memory allocation failed.\n" );
        return -1;
    }
    char* p = args_dup;

    /* Parsing the args to get sensor name string */
    while (*p && isspace(*p)) p++;
    if (*p == 0)
        goto INPUT_ERROR;
    sensor = p;

    /* Parsing the args to get value string */
    while (*p && (! isspace(*p))) p++;
    if (*p == 0 || *(p + 1) == 0/* make sure value isn't NULL */)
        goto INPUT_ERROR;
    *p = 0;
    value = p + 1;

    if (! (strlen(sensor) && strlen(value)))
        goto INPUT_ERROR;

    int sensor_id = android_sensors_get_id_from_name( sensor );
    char buffer[SENSORS_INFO_SIZE] = { 0 };

    if (sensor_id < 0) {
        status = sensor_id;
        goto SENSOR_STATUS_ERROR;
    } else {
        float fvalues[3];
        status = android_sensors_get( sensor_id, &fvalues[0], &fvalues[1], &fvalues[2] );
        if (status != SENSOR_STATUS_OK)
            goto SENSOR_STATUS_ERROR;

        /* Parsing the value part to get the sensor values(a, b, c) */
        int i;
        char* pnext;
        char* pend = value + strlen(value);
        for (i = 0; i < 3; i++, value = pnext + 1) {
            pnext=strchr( value, ':' );
            if (pnext) {
                *pnext = 0;
            } else {
                pnext = pend;
            }

            if (pnext > value) {
                if (1 != sscanf( value,"%g", &fvalues[i] ))
                    goto INPUT_ERROR;
            }
        }

        status = android_sensors_set( sensor_id, fvalues[0], fvalues[1], fvalues[2] );
        if (status != SENSOR_STATUS_OK)
            goto SENSOR_STATUS_ERROR;

        free( args_dup );
        return 0;
    }

SENSOR_STATUS_ERROR:
    switch(status) {
    case SENSOR_STATUS_NO_SERVICE:
        snprintf( buffer, sizeof(buffer), "KO: No sensor service found!\r\n" );
        break;
    case SENSOR_STATUS_DISABLED:
        snprintf( buffer, sizeof(buffer), "KO: '%s' sensor is disabled.\r\n", sensor );
        break;
    case SENSOR_STATUS_UNKNOWN:
        snprintf( buffer, sizeof(buffer),
                "KO: unknown sensor name: %s, run 'sensor status' to get available sensors.\r\n", sensor );
        break;
    default:
        snprintf( buffer, sizeof(buffer), "KO: '%s' sensor: exception happens.\r\n", sensor );
    }
    do_control_write( client, buffer );
    free( args_dup );
    return -1;

INPUT_ERROR:
    control_write( client, "KO: Usage: \"set <sensorname> <value-a>[:<value-b>[:<value-c>]]\"\n" );
    free( args_dup );
    return -1;
}

/* get all available sensor names and enable status respectively. */
static int
do_sensors_status( ControlClient client, char* args )
{
    uint8_t id, status;
    char buffer[SENSORS_INFO_SIZE] = { 0 };

    for(id = 0; id < MAX_SENSORS; id++) {
        status = android_sensors_get_sensor_status( id );
        snprintf( buffer, sizeof(buffer), "%s: %s\n",
                android_sensors_get_name_from_id(id), (status ? "enabled.":"disabled.") );
        control_write( client, buffer );
    }

    return 0;
}

/* Sensor commands for get/set sensor values and get available sensor names. */
static const CommandDefRec sensor_commands[] =
{
    { "status", "list all sensors and their status.",
      "'status': list all sensors and their status.\r\n",
      NULL, do_sensors_status, NULL },

    { "get", "get sensor values",
      "'get <sensorname>' returns the values of a given sensor.\r\n",
      NULL, do_sensors_get, NULL },

    { "set", "set sensor values",
      "'set <sensorname> <value-a>[:<value-b>[:<value-c>]]' set the values of a given sensor.\r\n",
      NULL, do_sensors_set, NULL },

    { NULL, NULL, NULL, NULL, NULL, NULL }
};

/********************************************************************************************/
/********************************************************************************************/
/*****                                                                                 ******/
/*****                           M A I N   C O M M A N D S                             ******/
/*****                                                                                 ******/
/********************************************************************************************/
/********************************************************************************************/

static int
do_window_scale( ControlClient  client, char*  args )
{
    double  scale;
    int     is_dpi = 0;
    char*   end;

    if (!args) {
        control_write( client, "KO: argument missing, try 'window scale <scale>'\r\n" );
        return -1;
    }

    scale = strtol( args, &end, 10 );
    if (end > args && !memcmp( end, "dpi", 4 )) {
        is_dpi = 1;
    }
    else {
        scale = strtod( args, &end );
        if (end == args || end[0]) {
            control_write( client, "KO: argument <scale> must be a real number, or an integer followed by 'dpi'\r\n" );
            return -1;
        }
    }

    uicmd_set_window_scale( scale, is_dpi );
    return 0;
}

static const CommandDefRec  window_commands[] =
{
    { "scale", "change the window scale",
    "'window scale <scale>' allows you to change the scale of the emulator window at runtime\r\n"
    "<scale> must be either a real number between 0.1 and 3.0, or an integer followed by\r\n"
    "the 'dpi' prefix (as in '120dpi')\r\n",
    NULL, do_window_scale, NULL },

    { NULL, NULL, NULL, NULL, NULL, NULL }
};

/********************************************************************************************/
/********************************************************************************************/
/*****                                                                                 ******/
/*****                           Q E M U   C O M M A N D S                             ******/
/*****                                                                                 ******/
/********************************************************************************************/
/********************************************************************************************/

static int
do_qemu_monitor( ControlClient client, char* args )
{
    char             socketname[32];
    int              fd;
    CharDriverState* cs;

    if (args != NULL) {
        control_write( client, "KO: no argument for 'qemu monitor'\r\n" );
        return -1;
    }
    /* Detach the client socket, and re-attach it to a monitor */
    fd = control_client_detach(client);
    snprintf(socketname, sizeof socketname, "tcp:socket=%d", fd);
    cs = qemu_chr_open("monitor", socketname, NULL);
    if (cs == NULL) {
        control_client_reattach(client, fd);
        control_write( client, "KO: internal error: could not detach from console !\r\n" );
        return -1;
    }
    monitor_init(cs, MONITOR_USE_READLINE|MONITOR_QUIT_DOESNT_EXIT);
    control_client_destroy(client);
    return 0;
}

#ifdef CONFIG_STANDALONE_CORE
/* UI settings, passed to the core via -ui-settings command line parameter. */
extern char* android_op_ui_settings;

static int
do_attach_ui( ControlClient client, char* args )
{
    // Make sure that there are no UI already attached to this console.
    if (attached_ui_client != NULL) {
        control_write( client, "KO: Another UI is attached to this core!\r\n" );
        control_client_destroy(client);
        return -1;
    }

    if (!attachUiProxy_create(client->sock)) {
        char reply_buf[4096];
        attached_ui_client = client;
        // Reply "OK" with the saved -ui-settings property.
        snprintf(reply_buf, sizeof(reply_buf), "OK: %s\r\n", android_op_ui_settings);
        control_write( client, reply_buf);
    } else {
        control_write( client, "KO\r\n" );
        control_client_destroy(client);
        return -1;
    }

    return 0;
}

void
destroy_attach_ui_client(void)
{
    if (attached_ui_client != NULL) {
        control_client_destroy(attached_ui_client);
    }
}

static int
do_create_framebuffer_service( ControlClient client, char* args )
{
    ProxyFramebuffer* core_fb;
    const char* protocol = "-raw";   // Default framebuffer exchange protocol.
    char reply_buf[64];

    // Protocol type is defined by the arguments passed with the stream switch
    // command.
    if (args != NULL && *args != '\0') {
        size_t token_len;
        const char* param_end = strchr(args, ' ');
        if (param_end == NULL) {
            param_end = args + strlen(args);
        }
        token_len = param_end - args;
        protocol = args;

        // Make sure that this is one of the supported protocols.
        if (strncmp(protocol, "-raw", token_len) &&
            strncmp(protocol, "-shared", token_len)) {
            derror("Invalid framebuffer parameter %s\n", protocol);
            control_write( client, "KO: Invalid parameter\r\n" );
            control_client_destroy(client);
            return -1;
        }
    }

    core_fb = proxyFb_create(client->sock, protocol);
    if (core_fb == NULL) {
        control_write( client, "KO\r\n" );
        control_client_destroy(client);
        return -1;
    }

    // Reply "OK" with the framebuffer's bits per pixel
    snprintf(reply_buf, sizeof(reply_buf), "OK: -bitsperpixel=%d\r\n",
             proxyFb_get_bits_per_pixel(core_fb));
    control_write( client, reply_buf);
    return 0;
}

static int
do_create_user_events_service( ControlClient client, char* args )
{
    // Make sure that there are no user events client already existing.
    if (user_events_client != NULL) {
        control_write( client, "KO: Another user events service is already existing!\r\n" );
        control_client_destroy(client);
        return -1;
    }

    if (!userEventsImpl_create(client->sock)) {
        char reply_buf[4096];
        user_events_client = client;
        snprintf(reply_buf, sizeof(reply_buf), "OK\r\n");
        control_write( client, reply_buf);
    } else {
        control_write( client, "KO\r\n" );
        control_client_destroy(client);
        return -1;
    }

    return 0;
}

void
destroy_user_events_client(void)
{
    if (user_events_client != NULL) {
        control_client_destroy(user_events_client);
    }
}

static int
do_create_ui_core_ctl_service( ControlClient client, char* args )
{
    // Make sure that there are no ui control client already existing.
    if (ui_core_ctl_client != NULL) {
        control_write( client, "KO: Another UI control service is already existing!\r\n" );
        control_client_destroy(client);
        return -1;
    }

    if (!coreCmdImpl_create(client->sock)) {
        char reply_buf[4096];
        ui_core_ctl_client = client;
        snprintf(reply_buf, sizeof(reply_buf), "OK\r\n");
        control_write( client, reply_buf);
    } else {
        control_write( client, "KO\r\n" );
        control_client_destroy(client);
        return -1;
    }

    return 0;
}

void
destroy_ui_core_ctl_client(void)
{
    if (ui_core_ctl_client != NULL) {
        control_client_destroy(ui_core_ctl_client);
    }
}

void
destroy_corecmd_client(void)
{
    if (ui_core_ctl_client != NULL) {
        control_client_destroy(ui_core_ctl_client);
    }
}

static int
do_create_core_ui_ctl_service( ControlClient client, char* args )
{
    // Make sure that there are no ui control client already existing.
    if (core_ui_ctl_client != NULL) {
        control_write( client, "KO: Another UI control service is already existing!\r\n" );
        control_client_destroy(client);
        return -1;
    }

    if (!uiCmdProxy_create(client->sock)) {
        char reply_buf[4096];
        core_ui_ctl_client = client;
        snprintf(reply_buf, sizeof(reply_buf), "OK\r\n");
        control_write( client, reply_buf);
    } else {
        control_write( client, "KO\r\n" );
        control_client_destroy(client);
        return -1;
    }

    return 0;
}

void
destroy_core_ui_ctl_client(void)
{
    if (core_ui_ctl_client != NULL) {
        control_client_destroy(core_ui_ctl_client);
    }
}

void
destroy_uicmd_client(void)
{
    if (core_ui_ctl_client != NULL) {
        control_client_destroy(core_ui_ctl_client);
    }
}

#endif  // CONFIG_STANDALONE_CORE

static const CommandDefRec  qemu_commands[] =
{
    { "monitor", "enter QEMU monitor",
    "Enter the QEMU virtual machine monitor\r\n",
    NULL, do_qemu_monitor, NULL },

#ifdef CONFIG_STANDALONE_CORE
    { "attach-UI", "attach UI to the core",
    "Attach UI to the core\r\n",
    NULL, do_attach_ui, NULL },

    { "framebuffer", "create framebuffer service",
    "Create framebuffer service\r\n",
    NULL, do_create_framebuffer_service, NULL },

    { "user-events", "create user events service",
    "Create user events service\r\n",
    NULL, do_create_user_events_service, NULL },

    { "ui-core-control", "create UI control service",
    "Create UI control service\r\n",
    NULL, do_create_ui_core_ctl_service, NULL },

    { "core-ui-control", "create UI control service",
    "Create UI control service\r\n",
    NULL, do_create_core_ui_ctl_service, NULL },
#endif  // CONFIG_STANDALONE_CORE

    { NULL, NULL, NULL, NULL, NULL, NULL }
};


/********************************************************************************************/
/********************************************************************************************/
/*****                                                                                 ******/
/*****                           M A I N   C O M M A N D S                             ******/
/*****                                                                                 ******/
/********************************************************************************************/
/********************************************************************************************/

static int
do_kill( ControlClient  client, char*  args )
{
    control_write( client, "OK: killing emulator, bye bye\r\n" );
    exit(0);
}

static const CommandDefRec   main_commands[] =
{
    { "help|h|?", "print a list of commands", NULL, NULL, do_help, NULL },

    { "event", "simulate hardware events",
    "allows you to send fake hardware events to the kernel\r\n", NULL,
    NULL, event_commands },

    { "geo", "Geo-location commands",
      "allows you to change Geo-related settings, or to send GPS NMEA sentences\r\n", NULL,
      NULL, geo_commands },

    { "gsm", "GSM related commands",
      "allows you to change GSM-related settings, or to make a new inbound phone call\r\n", NULL,
      NULL, gsm_commands },

    { "cdma", "CDMA related commands",
      "allows you to change CDMA-related settings\r\n", NULL,
      NULL, cdma_commands },

    { "kill", "kill the emulator instance", NULL, NULL,
      do_kill, NULL },

    { "network", "manage network settings",
      "allows you to manage the settings related to the network data connection of the\r\n"
      "emulated device.\r\n", NULL,
      NULL, network_commands },

    { "power", "power related commands",
      "allows to change battery and AC power status\r\n", NULL,
      NULL, power_commands },

    { "quit|exit", "quit control session", NULL, NULL,
      do_quit, NULL },

    { "redir",    "manage port redirections",
      "allows you to add, list and remove UDP and/or PORT redirection from the host to the device\r\n"
      "as an example, 'redir  tcp:5000:6000' will route any packet sent to the host's TCP port 5000\r\n"
      "to TCP port 6000 of the emulated device\r\n", NULL,
      NULL, redir_commands },

    { "sms", "SMS related commands",
      "allows you to simulate an inbound SMS\r\n", NULL,
      NULL, sms_commands },

    { "avd", "control virtual device execution",
    "allows you to control (e.g. start/stop) the execution of the virtual device\r\n", NULL,
    NULL, vm_commands },

    { "window", "manage emulator window",
    "allows you to modify the emulator window\r\n", NULL,
    NULL, window_commands },

    { "qemu", "QEMU-specific commands",
    "allows to connect to the QEMU virtual machine monitor\r\n", NULL,
    NULL, qemu_commands },

    { "sensor", "manage emulator sensors",
      "allows you to request the emulator sensors\r\n", NULL,
      NULL, sensor_commands },

    { NULL, NULL, NULL, NULL, NULL, NULL }
};


static ControlGlobalRec  _g_global;

int
control_console_start( int  port )
{
    return control_global_init( &_g_global, port );
}