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author | Doug Zongker <dougz@android.com> | 2010-02-17 16:11:44 -0800 |
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committer | Doug Zongker <dougz@android.com> | 2010-02-18 14:22:12 -0800 |
commit | 512536a54a1a211a9f582e76cbf12850dc7d5466 (patch) | |
tree | 724012f5ea1a3053adecb512baf342490bb94d02 /applypatch/utils.c | |
parent | 21854ccdb250e6e81311b4317934e8c953b252a8 (diff) | |
download | bootable_recovery-512536a54a1a211a9f582e76cbf12850dc7d5466.zip bootable_recovery-512536a54a1a211a9f582e76cbf12850dc7d5466.tar.gz bootable_recovery-512536a54a1a211a9f582e76cbf12850dc7d5466.tar.bz2 |
relocate applypatch; add type system and new functions to edify
- Move applypatch to this package (from build).
- Add a rudimentary type system to edify: instead of just returning a
char*, functions now return a Value*, which is a struct that can
carry different types of value (currently just STRING and BLOB).
Convert all functions to this new scheme.
- Change the one-argument form of package_extract_file to return a
Value of the new BLOB type.
- Add read_file() to load a local file and return a blob, and
sha1_check() to test a blob (or string) against a set of possible
sha1s. read_file() uses the file-loading code from applypatch so it
can read MTD partitions as well.
This is the start of better integration between applypatch and the
rest of edify.
b/2361316 - VZW Issue PP628: Continuous reset to Droid logo:
framework-res.apk update failed (CR LIBtt59130)
Change-Id: Ibd038074749a4d515de1f115c498c6c589ee91e5
Diffstat (limited to 'applypatch/utils.c')
-rw-r--r-- | applypatch/utils.c | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/applypatch/utils.c b/applypatch/utils.c new file mode 100644 index 0000000..912229b --- /dev/null +++ b/applypatch/utils.c @@ -0,0 +1,62 @@ +/* + * Copyright (C) 2009 The Android Open Source Project + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include <stdio.h> + +#include "utils.h" + +/** Write a 4-byte value to f in little-endian order. */ +void Write4(int value, FILE* f) { + fputc(value & 0xff, f); + fputc((value >> 8) & 0xff, f); + fputc((value >> 16) & 0xff, f); + fputc((value >> 24) & 0xff, f); +} + +/** Write an 8-byte value to f in little-endian order. */ +void Write8(long long value, FILE* f) { + fputc(value & 0xff, f); + fputc((value >> 8) & 0xff, f); + fputc((value >> 16) & 0xff, f); + fputc((value >> 24) & 0xff, f); + fputc((value >> 32) & 0xff, f); + fputc((value >> 40) & 0xff, f); + fputc((value >> 48) & 0xff, f); + fputc((value >> 56) & 0xff, f); +} + +int Read2(unsigned char* p) { + return (int)(((unsigned int)p[1] << 8) | + (unsigned int)p[0]); +} + +int Read4(unsigned char* p) { + return (int)(((unsigned int)p[3] << 24) | + ((unsigned int)p[2] << 16) | + ((unsigned int)p[1] << 8) | + (unsigned int)p[0]); +} + +long long Read8(unsigned char* p) { + return (long long)(((unsigned long long)p[7] << 56) | + ((unsigned long long)p[6] << 48) | + ((unsigned long long)p[5] << 40) | + ((unsigned long long)p[4] << 32) | + ((unsigned long long)p[3] << 24) | + ((unsigned long long)p[2] << 16) | + ((unsigned long long)p[1] << 8) | + (unsigned long long)p[0]); +} |