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io: Fix compressed flag for uncompressed stdin

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This could cause xmlstarlet to generate compressed output unexpectedly.

Regressed with 6208f86e. Should fix #869.
This commit is contained in:
Nick Wellnhofer 2025-03-02 13:21:29 +01:00
parent ee1a43d4a5
commit 6d02b54e0c
1 changed files with 8 additions and 4 deletions
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12
xmlIO.c
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@ -1180,7 +1180,9 @@ xmlInputFromFd(xmlParserInputBufferPtr buf, int fd, int unzip) {
if (xzStream == NULL) {
close(copy);
} else {
if ((__libxml2_xzcompressed(xzStream) > 0) ||
int compressed = (__libxml2_xzcompressed(xzStream) > 0);
if ((compressed) ||
/* Try to rewind if not gzip compressed */
(pos < 0) ||
(lseek(fd, pos, SEEK_SET) < 0)) {
@ -1191,7 +1193,7 @@ xmlInputFromFd(xmlParserInputBufferPtr buf, int fd, int unzip) {
buf->context = xzStream;
buf->readcallback = xmlXzfileRead;
buf->closecallback = xmlXzfileClose;
buf->compressed = 1;
buf->compressed = compressed;
return(XML_ERR_OK);
}
@ -1217,7 +1219,9 @@ xmlInputFromFd(xmlParserInputBufferPtr buf, int fd, int unzip) {
if (gzStream == NULL) {
close(copy);
} else {
if ((gzdirect(gzStream) == 0) ||
int compressed = (gzdirect(gzStream) == 0);
if ((compressed) ||
/* Try to rewind if not gzip compressed */
(pos < 0) ||
(lseek(fd, pos, SEEK_SET) < 0)) {
@ -1228,7 +1232,7 @@ xmlInputFromFd(xmlParserInputBufferPtr buf, int fd, int unzip) {
buf->context = gzStream;
buf->readcallback = xmlGzfileRead;
buf->closecallback = xmlGzfileClose;
buf->compressed = 1;
buf->compressed = compressed;
return(XML_ERR_OK);
}