CTCaer/RetroArch
1
0
Fork 0
mirror of https://github.com/CTCaer/RetroArch.git synced 2025-01-05 09:39:32 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

Create zlib_file_handle_t

Browse Source
This commit is contained in:
twinaphex 2015-03-28 18:04:51 +01:00
parent aef562ebd5
commit 84b9898934
1 changed files with 23 additions and 17 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

40
file_extract.c
View File

@ -223,6 +223,13 @@ static uint32_t read_le(const uint8_t *data, unsigned size)
return val;
}
typedef struct zlib_handle
{
z_stream stream;
uint8_t *data;
uint32_t real_checksum;
} zlib_file_handle_t;
/**
* zlib_inflate_data_to_file:
* @path : filename path of archive.
@ -241,38 +248,37 @@ int zlib_inflate_data_to_file(const char *path, const char *valid_exts,
const uint8_t *cdata, uint32_t csize, uint32_t size, uint32_t checksum)
{
int ret = true;
uint32_t real_checksum = 0;
z_stream stream = {0};
uint8_t *out_data = (uint8_t*)malloc(size);
zlib_file_handle_t handle = {{0}};
handle.data = (uint8_t*)malloc(size);
if (!out_data)
if (!handle.data)
return false;
if (inflateInit2(&stream, -MAX_WBITS) != Z_OK)
if (inflateInit2(&handle.stream, -MAX_WBITS) != Z_OK)
GOTO_END_ERROR();
stream.next_in = (uint8_t*)cdata;
stream.avail_in = csize;
stream.next_out = out_data;
stream.avail_out = size;
handle.stream.next_in = (uint8_t*)cdata;
handle.stream.avail_in = csize;
handle.stream.next_out = handle.data;
handle.stream.avail_out = size;
if (inflate(&stream, Z_FINISH) != Z_STREAM_END)
if (inflate(&handle.stream, Z_FINISH) != Z_STREAM_END)
{
inflateEnd(&stream);
inflateEnd(&handle.stream);
GOTO_END_ERROR();
}
inflateEnd(&stream);
inflateEnd(&handle.stream);
real_checksum = crc32_calculate(out_data, size);
if (real_checksum != checksum)
handle.real_checksum = crc32_calculate(handle.data, size);
if (handle.real_checksum != checksum)
RARCH_WARN("File CRC differs from ZIP CRC. File: 0x%x, ZIP: 0x%x.\n",
(unsigned)real_checksum, (unsigned)checksum);
(unsigned)handle.real_checksum, (unsigned)checksum);
if (!write_file(path, out_data, size))
if (!write_file(path, handle.data, size))
GOTO_END_ERROR();
end:
free(out_data);
free(handle.data);
return ret;
}