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libxml violates the zlib interface and crashes

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* xmlIO.c: remove an abuse of zlib API and use a clean interface
  available in zlib >= 1.2.3
This commit is contained in:
Mark Adler 2010-01-19 16:28:48 +01:00 committed by Daniel Veillard
parent 7304683335
commit a7e79f2868
1 changed files with 4 additions and 0 deletions
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4
xmlIO.c
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@ -2518,6 +2518,9 @@ __xmlParserInputBufferCreateFilename(const char *URI, xmlCharEncoding enc) {
#ifdef HAVE_ZLIB_H
if ((xmlInputCallbackTable[i].opencallback == xmlGzfileOpen) &&
(strcmp(URI, "-") != 0)) {
#if defined(ZLIB_VERNUM) && ZLIB_VERNUM >= 0x1230
ret->compressed = !gzdirect(context);
#else
if (((z_stream *)context)->avail_in > 4) {
char *cptr, buff4[4];
cptr = (char *) ((z_stream *)context)->next_in;
@ -2529,6 +2532,7 @@ __xmlParserInputBufferCreateFilename(const char *URI, xmlCharEncoding enc) {
gzrewind(context);
}
}
#endif
}
#endif
}