/**
* retro_read_file:
* @path : path to file.
* @buf : buffer to allocate and read the contents of the
* file into. Needs to be freed manually.
*
* Read the contents of a file into @buf.
*
* Returns: number of items read, -1 on error.
*/
int retro_read_file(const char *path, void **buf, ssize_t *len)
{
ssize_t ret = 0;
ssize_t content_buf_size = 0;
void *content_buf = NULL;
RFILE *file = retro_fopen(path, RFILE_MODE_READ, -1);
if (!file)
goto error;
if (retro_fseek(file, 0, SEEK_END) != 0)
goto error;
content_buf_size = retro_ftell(file);
if (content_buf_size < 0)
goto error;
retro_frewind(file);
content_buf = malloc(content_buf_size + 1);
if (!content_buf)
goto error;
if ((ret = retro_fread(file, content_buf, content_buf_size)) < content_buf_size)
{
#ifdef RARCH_INTERNAL
RARCH_WARN("Didn't read whole file: %s.\n", path);
#else
printf("Didn't read whole file: %s.\n", path);
#endif
}
if (!content_buf)
goto error;
*buf = content_buf;
/* Allow for easy reading of strings to be safe.
* Will only work with sane character formatting (Unix). */
((char*)content_buf)[content_buf_size] = '\0';
if (retro_fclose(file) != 0)
printf("Failed to close file stream.\n");
if (len)
*len = ret;
return 1;
error:
retro_fclose(file);
if (content_buf)
free(content_buf);
if (len)
*len = -1;
*buf = NULL;
return 0;
}
static int detect_ps1_game_sub(const char *track_path, char *game_id, int sub_channel_mixed)
{
uint8_t* tmp;
uint8_t buffer[2048 * 2];
int skip, frame_size, is_mode1, cd_sector;
RFILE *fp = retro_fopen(track_path, RFILE_MODE_READ, -1);
if (!fp)
return 0;
is_mode1 = 0;
retro_fseek(fp, 0, SEEK_END);
if (!sub_channel_mixed)
{
if (!(retro_ftell(fp) & 0x7FF))
{
unsigned int mode_test = 0;
retro_fseek(fp, 0, SEEK_SET);
retro_fread(fp, &mode_test, 4);
#if defined(MSB_FIRST)
if (mode_test != 0x00ffffff)
#else
if (mode_test != 0xffffff00)
#endif
is_mode1 = 1;
}
}
skip = is_mode1? 0: 24;
frame_size = sub_channel_mixed? 2448: is_mode1? 2048: 2352;
retro_fseek(fp, 156 + skip + 16 * frame_size, SEEK_SET);
retro_fread(fp, buffer, 6);
cd_sector = buffer[2] | (buffer[3] << 8) | (buffer[4] << 16);
retro_fseek(fp, skip + cd_sector * frame_size, SEEK_SET);
retro_fread(fp, buffer, 2048 * 2);
tmp = buffer;
while (tmp < (buffer + 2048 * 2))
{
if (!*tmp)
return 0;
if (!strncasecmp((const char*)(tmp + 33), "SYSTEM.CNF;1", 12))
break;
tmp += *tmp;
}
if(tmp >= (buffer + 2048 * 2))
return 0;
cd_sector = tmp[2] | (tmp[3] << 8) | (tmp[4] << 16);
retro_fseek(fp, 13 + skip + cd_sector * frame_size, SEEK_SET);
retro_fread(fp, buffer, 256);
tmp = (uint8_t*)strrchr((const char*)buffer, '\\');
if(!tmp)
tmp = buffer;
else
tmp++;
*game_id++ = toupper(*tmp++);
*game_id++ = toupper(*tmp++);
*game_id++ = toupper(*tmp++);
*game_id++ = toupper(*tmp++);
*game_id++ = '-';
tmp++;
*game_id++ = *tmp++;
*game_id++ = *tmp++;
*game_id++ = *tmp++;
tmp++;
*game_id++ = *tmp++;
*game_id++ = *tmp++;
*game_id = 0;
retro_fclose(fp);
return 1;
}
/**
* retro_read_file:
* @path : path to file.
* @buf : buffer to allocate and read the contents of the
* file into. Needs to be freed manually.
*
* Read the contents of a file into @buf.
*
* Returns: number of items read, -1 on error.
*/
int retro_read_file(const char *path, void **buf, ssize_t *len)
{
ssize_t ret = 0;
ssize_t content_buf_size = 0;
void *content_buf = NULL;
RFILE *file = retro_fopen(path, RFILE_MODE_READ, -1);
if (!file)
{
#if __STDC_VERSION__ >= 199901L
fprintf(stderr, "%s: Failed to open %s: %s\n", __FUNCTION__, path, strerror(errno));
#else
fprintf(stderr, "Failed to open %s: %s\n", path, strerror(errno));
#endif
goto error;
}
if (retro_fseek(file, 0, SEEK_END) != 0)
goto error;
content_buf_size = retro_ftell(file);
if (content_buf_size < 0)
goto error;
retro_frewind(file);
content_buf = malloc(content_buf_size + 1);
if (!content_buf)
goto error;
ret = retro_fread(file, content_buf, content_buf_size);
if (ret < 0)
{
#if __STDC_VERSION__ >= 199901L
fprintf(stderr, "%s: Failed to read %s: %s\n", __FUNCTION__, path, strerror(errno));
#else
fprintf(stderr, "Failed to read %s: %s\n", path, strerror(errno));
#endif
goto error;
}
retro_fclose(file);
*buf = content_buf;
/* Allow for easy reading of strings to be safe.
* Will only work with sane character formatting (Unix). */
((char*)content_buf)[content_buf_size] = '\0';
if (len)
*len = ret;
return 1;
error:
if (file)
retro_fclose(file);
if (content_buf)
free(content_buf);
if (len)
*len = -1;
*buf = NULL;
return 0;
}
