mirror of
https://github.com/wiidev/usbloadergx.git
synced 2024-07-06 18:01:49 +02:00
1cc7d3acd6
* Added initial (untested!) support for the zip file format, which is supported by the HBC * Began working on compressed wad files. Uncompressing fails for now, so uploading WAD files should be done with the previous version of Wiiload. * Fixed issue 902 (hence the large commit).
63 lines
1.7 KiB
C
63 lines
1.7 KiB
C
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#include "inflate.h"
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#define CHUNK 1024
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int inflateFile(FILE *source, FILE *dest)
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{
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int ret;
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unsigned have;
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z_stream strm;
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unsigned char in[CHUNK];
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unsigned char out[CHUNK];
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/* allocate inflate state */
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strm.zalloc = Z_NULL;
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strm.zfree = Z_NULL;
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strm.opaque = Z_NULL;
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strm.avail_in = 0;
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strm.next_in = Z_NULL;
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ret = inflateInit(&strm);
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if (ret != Z_OK)
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return ret;
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/* decompress until deflate stream ends or end of file */
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do {
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strm.avail_in = fread(in, 1, CHUNK, source);
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if (ferror(source)) {
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(void)inflateEnd(&strm);
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return Z_ERRNO;
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}
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if (strm.avail_in == 0)
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break;
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strm.next_in = in;
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/* run inflate() on input until output buffer not full */
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do {
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strm.avail_out = CHUNK;
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strm.next_out = out;
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ret = inflate(&strm, Z_NO_FLUSH);
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switch (ret) {
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case Z_NEED_DICT:
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(void)inflateEnd(&strm);
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return -20;
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case Z_DATA_ERROR:
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(void)inflateEnd(&strm);
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return -21;
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case Z_MEM_ERROR:
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(void)inflateEnd(&strm);
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return -22;
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}
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have = CHUNK - strm.avail_out;
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if (fwrite(out, 1, have, dest) != have || ferror(dest)) {
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(void)inflateEnd(&strm);
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return Z_ERRNO;
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}
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} while (strm.avail_out == 0);
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/* done when inflate() says it's done */
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} while (ret != Z_STREAM_END);
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/* clean up and return */
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(void)inflateEnd(&strm);
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return ret == Z_STREAM_END ? Z_OK : Z_DATA_ERROR;
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}
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