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#include "android_option.h"
#include "android_debug.h"
#include "android_utils.h"
#include <stdlib.h>
#include <stddef.h>
#include <string.h>
#define _VERBOSE_TAG(x,y) { #x, VERBOSE_##x, y },
static const struct { const char* name; int flag; const char* text; }
debug_tags[] = {
VERBOSE_TAG_LIST
{ 0, 0, 0 }
};
static void parse_debug_tags( const char* tags );
static void parse_env_debug_tags( void );
typedef struct {
const char* name;
int var_offset;
int var_is_param;
int var_is_config;
} OptionInfo;
#define OPTION(_name,_type,_config) \
{ #_name, offsetof(AndroidOptions,_name), _type, _config },
static const OptionInfo option_keys[] = {
#define OPT_PARAM(_name,_template,_descr) OPTION(_name,1,0)
#define OPT_FLAG(_name,_descr) OPTION(_name,0,0)
#define CFG_PARAM(_name,_template,_descr) OPTION(_name,1,1)
#define CFG_FLAG(_name,_descr) OPTION(_name,0,1)
#include "android_options.h"
{ NULL, 0, 0, 0 }
};
int
android_parse_options( int *pargc, char** *pargv, AndroidOptions* opt )
{
int nargs = *pargc-1;
char** aread = *pargv+1;
char** awrite = aread;
memset( opt, 0, sizeof *opt );
while (nargs > 0 && aread[0][0] == '-') {
char* arg = aread[0]+1;
int nn;
/* an option cannot contain an underscore */
if (strchr(arg, '_') != NULL) {
break;
}
nargs--;
aread++;
/* for backwards compatibility with previous versions */
if (!strcmp(arg, "verbose")) {
arg = "debug-init";
}
/* special handing for -debug <tags> */
if (!strcmp(arg, "debug")) {
if (nargs == 0) {
derror( "-debug must be followed by tags (see -help-verbose)\n");
exit(1);
}
nargs--;
parse_debug_tags(*aread++);
continue;
}
/* special handling for -debug-<tag> and -debug-no-<tag> */
if (!strncmp(arg, "debug-", 6)) {
int remove = 0;
unsigned long mask = 0;
arg += 6;
if (!strncmp(arg, "no-", 3)) {
arg += 3;
remove = 1;
}
if (!strcmp(arg, "all")) {
mask = ~0;
}
for (nn = 0; debug_tags[nn].name; nn++) {
if (!strcmp(arg, debug_tags[nn].name)) {
mask = (1 << debug_tags[nn].flag);
break;
}
}
if (remove)
android_verbose &= ~mask;
else
android_verbose |= mask;
continue;
}
/* look into our table of options
*
* NOTE: the 'option_keys' table maps option names
* to field offsets into the AndroidOptions structure.
*
* however, the names stored in the table used underscores
* instead of dashes. this means that the command-line option
* '-foo-bar' will be associated to the name 'foo_bar' in
* this table, and will point to the field 'foo_bar' or
* AndroidOptions.
*
* as such, before comparing the current option to the
* content of the table, we're going to translate dashes
* into underscores.
*/
{
const OptionInfo* oo = option_keys;
char arg2[64];
int len = strlen(arg);
/* copy into 'arg2' buffer, translating dashes
* to underscores. note that we truncate to 63
* characters, which should be enough in practice
*/
if (len > sizeof(arg2)-1)
len = sizeof(arg2)-1;
memcpy(arg2, arg, len+1);
buffer_translate_char(arg2, len, '-', '_');
for ( ; oo->name; oo++ ) {
if ( !strcmp( oo->name, arg2 ) ) {
void* field = (char*)opt + oo->var_offset;
if (oo->var_is_param) {
/* parameter option */
if (nargs == 0) {
derror( "-%s must be followed by parameter (see -help-%s)",
arg, arg );
exit(1);
}
nargs--;
((char**)field)[0] = *aread++;
} else {
/* flag option */
((int*)field)[0] = 1;
}
break;
}
}
if (oo->name == NULL) { /* unknown option ? */
nargs++;
aread--;
break;
}
}
}
/* copy remaining parameters, if any, to command line */
*pargc = nargs + 1;
while (nargs > 0) {
awrite[0] = aread[0];
awrite ++;
aread ++;
nargs --;
}
awrite[0] = NULL;
return 0;
}
/* special handling of -debug option and tags */
#define ENV_DEBUG "ANDROID_DEBUG"
static void
parse_debug_tags( const char* tags )
{
char* x;
char* y;
char* x0;
if (tags == NULL)
return;
x = x0 = strdup(tags);
while (*x) {
y = strchr(x, ',');
if (y == NULL)
y = x + strlen(x);
else
*y++ = 0;
if (y > x+1) {
int nn, remove = 0;
unsigned mask = 0;
if (x[0] == '-') {
remove = 1;
x += 1;
}
if (!strcmp( "all", x ))
mask = ~0;
else {
for (nn = 0; debug_tags[nn].name != NULL; nn++) {
if ( !strcmp( debug_tags[nn].name, x ) ) {
mask |= (1 << debug_tags[nn].flag);
break;
}
}
}
if (mask == 0)
dprint( "ignoring unknown " ENV_DEBUG " item '%s'", x );
else {
if (remove)
android_verbose &= ~mask;
else
android_verbose |= mask;
}
}
x = y;
}
free(x0);
}
static void
parse_env_debug_tags( void )
{
const char* env = getenv( ENV_DEBUG );
parse_debug_tags( env );
}
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