static ssize_t read_rom_file(const char *path, void **buf)
{
uint8_t *ret_buf = NULL;
ssize_t ret = read_file(path, (void**)&ret_buf);
if (ret <= 0)
return ret;
if (!g_extern.block_patch)
{
// Attempt to apply a patch.
patch_rom(&ret_buf, &ret);
}
g_extern.cart_crc = crc32_calculate(ret_buf, ret);
sha256_hash(g_extern.sha256, ret_buf, ret);
RARCH_LOG("CRC32: 0x%x, SHA256: %s\n",
(unsigned)g_extern.cart_crc, g_extern.sha256);
*buf = ret_buf;
return ret;
}
static ssize_t read_rom_file(FILE *file, void **buf)
{
ssize_t ret = 0;
uint8_t *ret_buf = NULL;
if (file == NULL) // stdin
{
#if defined(_WIN32) && !defined(_XBOX)
_setmode(0, O_BINARY);
#endif
RARCH_LOG("Reading ROM from stdin ...\n");
size_t buf_size = 0xfffff; // Some initial guesstimate.
size_t buf_ptr = 0;
uint8_t *rom_buf = (uint8_t*)malloc(buf_size);
if (rom_buf == NULL)
{
RARCH_ERR("Couldn't allocate memory.\n");
return -1;
}
for (;;)
{
size_t ret = fread(rom_buf + buf_ptr, 1, buf_size - buf_ptr, stdin);
buf_ptr += ret;
// We've reached the end
if (buf_ptr < buf_size)
break;
rom_buf = (uint8_t*)realloc(rom_buf, buf_size * 2);
if (rom_buf == NULL)
{
RARCH_ERR("Couldn't allocate memory.\n");
return -1;
}
buf_size *= 2;
}
ret_buf = rom_buf;
ret = buf_ptr;
}
else
{
fseek(file, 0, SEEK_END);
ret = ftell(file);
rewind(file);
void *rom_buf = malloc(ret);
if (rom_buf == NULL)
{
RARCH_ERR("Couldn't allocate memory.\n");
return -1;
}
if (fread(rom_buf, 1, ret, file) < (size_t)ret)
{
RARCH_ERR("Didn't read whole file.\n");
free(rom_buf);
return -1;
}
ret_buf = (uint8_t*)rom_buf;
}
if (!g_extern.block_patch)
{
// Attempt to apply a patch.
patch_rom(&ret_buf, &ret);
}
g_extern.cart_crc = crc32_calculate(ret_buf, ret);
sha256_hash(g_extern.sha256, ret_buf, ret);
RARCH_LOG("CRC32: 0x%x, SHA256: %s\n",
(unsigned)g_extern.cart_crc, g_extern.sha256);
*buf = ret_buf;
return ret;
}
// Load SNES rom only. Applies a hack for headered ROMs.
static ssize_t read_rom_file(FILE *file, void **buf)
{
ssize_t ret = 0;
uint8_t *ret_buf = NULL;
if (file == NULL) // stdin
{
#if defined(_WIN32) && !defined(_XBOX)
setmode(0, O_BINARY);
#endif
RARCH_LOG("Reading ROM from stdin ...\n");
size_t buf_size = 0xFFFFF; // Some initial guesstimate.
size_t buf_ptr = 0;
uint8_t *rom_buf = (uint8_t*)malloc(buf_size);
if (rom_buf == NULL)
{
RARCH_ERR("Couldn't allocate memory.\n");
return -1;
}
for (;;)
{
size_t ret = fread(rom_buf + buf_ptr, 1, buf_size - buf_ptr, stdin);
buf_ptr += ret;
// We've reached the end
if (buf_ptr < buf_size)
break;
rom_buf = (uint8_t*)realloc(rom_buf, buf_size * 2);
if (rom_buf == NULL)
{
RARCH_ERR("Couldn't allocate memory.\n");
return -1;
}
buf_size *= 2;
}
ret_buf = rom_buf;
ret = buf_ptr;
}
else
{
fseek(file, 0, SEEK_END);
ret = ftell(file);
rewind(file);
void *rom_buf = malloc(ret);
if (rom_buf == NULL)
{
RARCH_ERR("Couldn't allocate memory.\n");
return -1;
}
if (fread(rom_buf, 1, ret, file) < (size_t)ret)
{
RARCH_ERR("Didn't read whole file.\n");
free(rom_buf);
return -1;
}
ret_buf = (uint8_t*)rom_buf;
}
if (!g_extern.block_patch)
{
// Attempt to apply a patch.
patch_rom(&ret_buf, &ret);
}
// Remove copier header if present (512 first bytes).
if ((ret & 0x7fff) == 512)
{
memmove(ret_buf, ret_buf + 512, ret - 512);
ret -= 512;
}
g_extern.cart_crc = crc32_calculate(ret_buf, ret);
#ifdef HAVE_XML
sha256_hash(g_extern.sha256, ret_buf, ret);
RARCH_LOG("SHA256 sum: %s\n", g_extern.sha256);
#endif
*buf = ret_buf;
return ret;
}
