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Fix gunzip to work for any gziped uImage size

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Signed-off-by: Catalin Radu <Catalin@VirtualMetrix.com>
This commit is contained in:
Catalin Radu 2011-02-04 14:35:47 +02:00 committed by Wolfgang Denk
parent 1472af34c1
commit f039ada5c1
1 changed files with 10 additions and 6 deletions
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16
lib/gunzip.c
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@ -106,12 +106,16 @@ int zunzip(void *dst, int dstlen, unsigned char *src, unsigned long *lenp,
s.avail_in = *lenp - offset;
s.next_out = dst;
s.avail_out = dstlen;
r = inflate(&s, Z_FINISH);
if ((r != Z_STREAM_END) && (stoponerr==1)) {
printf ("Error: inflate() returned %d\n", r);
inflateEnd(&s);
return (-1);
}
do {
r = inflate(&s, Z_FINISH);
if (r != Z_STREAM_END && r != Z_BUF_ERROR && stoponerr == 1) {
printf("Error: inflate() returned %d\n", r);
inflateEnd(&s);
return -1;
}
s.avail_in = *lenp - offset - (int)(s.next_out - (unsigned char*)dst);
s.avail_out = dstlen;
} while (r == Z_BUF_ERROR);
*lenp = s.next_out - (unsigned char *) dst;
inflateEnd(&s);