d191aadc04
Without stdlib.h malloc is assumed to return int, which is not compatible with void * in x64.
87 lines
1.8 KiB
C
87 lines
1.8 KiB
C
/*
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* usage : lzocompress.exe <size>
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*
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* lzocompress reads <size> bytes from stdin, compress them and write the result to stdout
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* errors are logged to stderr
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* return == 0 iff no errors
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*/
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#include "lzo/lzoconf.h"
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#include "lzo/lzo1x.h"
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/* portability layer */
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#define WANT_LZO_MALLOC 1
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#include "lzo/lzoutil.h"
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#include <fcntl.h>
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#include <stdio.h>
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#include <stdlib.h>
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#if defined(_WIN32)
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#include <io.h>
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#endif
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int main(int argc, char *argv[])
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{
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lzo_uint src_len, dst_len, max_dst_len;
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lzo_bytep src;
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lzo_bytep dst;
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lzo_bytep wrkmem;
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int r;
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#if defined(_WIN32)
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/* stdin/stdout must be binary streams */
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r = _setmode(_fileno(stdout), _O_BINARY);
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r = _setmode(_fileno(stdin), _O_BINARY);
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#endif
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if(argc != 2)
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{
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fprintf(stderr, "Usage : %s <size>\n <size> is the input buffer size in bytes\n", argv[0]);
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return -1;
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}
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src_len = atoi(argv[1]);
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if (lzo_init() != LZO_E_OK)
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{
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fprintf(stderr, "Couldn't initialize lzo\n");
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return -2;
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}
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/* read input buffer */
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src = (lzo_bytep) lzo_malloc(src_len);
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fread(src, 1, src_len, stdin);
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/* allocate the buffer to store the compressed data */
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max_dst_len = src_len + src_len/64 + 16 + 3;
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dst = (lzo_bytep) lzo_malloc(max_dst_len);
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/* allocate the working memory for lzo */
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wrkmem = (lzo_bytep) lzo_malloc(LZO1X_1_MEM_COMPRESS);
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/* compress data */
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dst_len = 0;
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r = lzo1x_1_compress(src, src_len, dst, &dst_len, wrkmem);
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if (r == LZO_E_OK)
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{
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/* write compressed data */
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fwrite(dst, 1, dst_len, stdout);
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}
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else
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{
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fprintf(stderr, "Compression failed : code = %d\n", r);
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}
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/* free memory */
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lzo_free(wrkmem);
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lzo_free(dst);
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lzo_free(src);
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/* return final result */
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if (r == LZO_E_OK)
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return 0;
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else
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return -3;
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}
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