/* 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;
}
int compat_file_exists(const char *path)
{
log_cb(RETRO_LOG_INFO, "Checking if \"%s\" exists\n", path);
int exists = 0;
compat_fd fd = compat_file_open(path, 0);
if (fd != COMPAT_FILE_OPEN_FAILED)
{
compat_file_close(fd);
exists = 1;
}
return exists;
}
int
utils_read_file( const char *filename, utils_file *file )
{
compat_fd fd;
int error;
fd = compat_file_open( filename, 0 );
if( fd == COMPAT_FILE_OPEN_FAILED ) {
ui_error( UI_ERROR_ERROR, "couldn't open '%s': %s", filename,
strerror( errno ) );
return 1;
}
error = utils_read_fd( fd, filename, file );
if( error ) return error;
return 0;
}
int utils_write_file( const char *filename, const unsigned char *buffer,
size_t length )
{
compat_fd fd;
fd = compat_file_open( filename, 1 );
if( fd == COMPAT_FILE_OPEN_FAILED ) {
ui_error( UI_ERROR_ERROR, "couldn't open `%s' for writing: %s\n",
filename, strerror( errno ) );
return 1;
}
if( compat_file_write( fd, buffer, length ) ) {
compat_file_close( fd );
return 1;
}
if( compat_file_close( fd ) ) return 1;
return 0;
}