int
utils_find_file_path( const char *filename, char *ret_path,
utils_aux_type type )
{
path_context ctx;
struct stat stat_info;
/* If given an absolute path, just look there */
if( compat_is_absolute_path( filename ) ) {
strncpy( ret_path, filename, PATH_MAX );
return 0;
}
/* Otherwise look in some likely locations */
init_path_context( &ctx, type );
while( compat_get_next_path( &ctx ) ) {
#ifdef AMIGA
snprintf( ret_path, PATH_MAX, "%s%s", ctx.path, filename );
#else
snprintf( ret_path, PATH_MAX, "%s" FUSE_DIR_SEP_STR "%s", ctx.path,
filename );
#endif
if( !stat( ret_path, &stat_info ) ) return 0;
}
return 1;
}
int
compat_get_next_path( path_context *ctx )
{
char buffer[ PATH_MAX ];
const char *path_segment, *path2;
switch( (ctx->state)++ ) {
/* First look relative to the current directory */
case 0:
strncpy( ctx->path, ".", PATH_MAX );
return 1;
/* Then relative to the Fuse executable */
case 1:
switch( ctx->type ) {
case UTILS_AUXILIARY_LIB: path_segment = "lib"; break;
case UTILS_AUXILIARY_ROM: path_segment = "roms"; break;
case UTILS_AUXILIARY_WIDGET: path_segment = "ui/widget"; break;
case UTILS_AUXILIARY_GTK: path_segment = "ui/gtk"; break;
default:
ui_error( UI_ERROR_ERROR, "unknown auxiliary file type %d", ctx->type );
return 0;
}
if( compat_is_absolute_path( fuse_progname ) ) {
strncpy( buffer, fuse_progname, PATH_MAX );
buffer[ PATH_MAX - 1 ] = '\0';
} else {
size_t len;
len = PATH_MAX - strlen( fuse_progname ) - strlen( FUSE_DIR_SEP_STR );
if( !getcwd( buffer, len ) ) {
ui_error( UI_ERROR_ERROR, "error getting current working directory: %s",
strerror( errno ) );
return 0;
}
strcat( buffer, FUSE_DIR_SEP_STR );
strcat( buffer, fuse_progname );
}
path2 = dirname( buffer );
snprintf( ctx->path, PATH_MAX, "%s" FUSE_DIR_SEP_STR "%s", path2,
path_segment );
return 1;
/* Then where we may have installed the data files */
case 2:
path2 = "sd:/apps/fuse";
strncpy( ctx->path, path2, PATH_MAX ); buffer[ PATH_MAX - 1 ] = '\0';
return 1;
case 3: return 0;
}
ui_error( UI_ERROR_ERROR, "unknown path_context state %d", ctx->state );
fuse_abort();
}
int
compat_get_next_path( path_context *ctx )
{
char buffer[ PATH_MAX ];
const char *path_segment, *path2;
switch( ctx->type ) {
case UTILS_AUXILIARY_LIB: path_segment = "lib"; break;
case UTILS_AUXILIARY_ROM: path_segment = "roms"; break;
case UTILS_AUXILIARY_WIDGET: path_segment = "ui/widget"; break;
case UTILS_AUXILIARY_GTK: path_segment = "ui/gtk"; break;
default:
ui_error( UI_ERROR_ERROR, "unknown auxiliary file type %d", ctx->type );
return 0;
}
switch( (ctx->state)++ ) {
/* First look relative to the Fuse executable */
case 0:
if( compat_is_absolute_path( fuse_progname ) ) {
strncpy( buffer, fuse_progname, PATH_MAX );
buffer[ PATH_MAX - 1 ] = '\0';
} else {
DWORD retval;
retval = GetModuleFileName( NULL, buffer, PATH_MAX );
if( !retval ) return 0;
}
path2 = dirname( buffer );
snprintf( ctx->path, PATH_MAX, "%s" FUSE_DIR_SEP_STR "%s", path2,
path_segment );
return 1;
/* Then relative to %APPDATA%/Fuse directory */
case 1:
path2 = getenv( "APPDATA" );
if( !path2 ) return 0;
snprintf( ctx->path, PATH_MAX, "%s" FUSE_DIR_SEP_STR "Fuse"
FUSE_DIR_SEP_STR "%s", path2, path_segment );
return 1;
/* Then relative to the current directory */
case 2:
snprintf( ctx->path, PATH_MAX, "." FUSE_DIR_SEP_STR "%s",
path_segment );
return 1;
case 3: return 0;
}
ui_error( UI_ERROR_ERROR, "unknown path_context state %d", ctx->state );
fuse_abort();
}
/* Find the auxiliary file called `filename'; returns a fd for the
file on success, -1 if it couldn't find the file */
static compat_fd
utils_find_auxiliary_file( const char *filename, utils_aux_type type )
{
compat_fd fd;
char path[ PATH_MAX ];
/* If given an absolute path, just look there */
if( compat_is_absolute_path( filename ) )
return compat_file_open( filename, 0 );
/* Otherwise look in some likely locations */
if( utils_find_file_path( filename, path, type ) ) {
return COMPAT_FILE_OPEN_FAILED;
}
fd = compat_file_open( path, 0 );
if( fd != COMPAT_FILE_OPEN_FAILED ) return fd;
/* Give up. Couldn't find this file */
return COMPAT_FILE_OPEN_FAILED;
}