45 lines
1.1 KiB
C
45 lines
1.1 KiB
C
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/************************************************************************
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* NodeMCU zip wrapper code for uzlib_compress
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <stdint.h>
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#include <unistd.h>
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#include "uzlib.h"
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#define fwriterec(r) fwrite(&(r), sizeof(r), 1, fout);
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#define BAD_FILE (-1)
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int main (int argc, char **argv) {
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const char *in = argv[1], *out = argv[2];
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if (argc!=3)
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return 1;
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printf ("Compressing in=%s out=%s\n", in, out);
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FILE *fin, *fout;
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int status = -1;
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uint32_t iLen, oLen;
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uint8_t *iBuf, *oBuf;
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if (!(fin = fopen(in, "rb")) || fseek(fin, 0, SEEK_END) ||
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(iLen = ftell(fin)) <= 0 || fseek(fin, 0, SEEK_SET))
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return 1;
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if ((fout = fopen(out, "wb")) == NULL ||
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(iBuf = (uint8_t *) uz_malloc(iLen)) == NULL ||
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fread(iBuf, 1, iLen, fin) != iLen)
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return 1;
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if (uzlib_compress (&oBuf, &oLen, iBuf, iLen) == UZLIB_OK &&
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oLen == fwrite(oBuf, oLen, 1, fout))
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status = UZLIB_OK;
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uz_free(iBuf);
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if (oBuf) uz_free(oBuf);
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fclose(fin);
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fclose(fout);
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if (status == UZLIB_OK)
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unlink(out);
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return (status == UZLIB_OK) ? 1: 0;
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}
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