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From 42942066e1f6422e26cd162a6014b19ac215083f Mon Sep 17 00:00:00 2001
From: Nick Wellnhofer <wellnhofer@aevum.de>
Date: Mon, 11 Nov 2019 13:49:11 +0100
Subject: [PATCH] Fix memory leaks of encoding handlers in xmlsave.c
Fix leak of iconv/ICU encoding handler in xmlSaveToBuffer.
Fix leaks of iconv/ICU encoding handlers in xmlSaveTo* error paths.
Closes #127.
---
xmlsave.c | 26 ++++++++------------------
1 file changed, 8 insertions(+), 18 deletions(-)
diff --git a/xmlsave.c b/xmlsave.c
index fa00915..7158c26 100644
--- a/xmlsave.c
+++ b/xmlsave.c
@@ -1802,6 +1802,7 @@ xmlSaveToFd(int fd, const char *encoding, int options)
if (ret == NULL) return(NULL);
ret->buf = xmlOutputBufferCreateFd(fd, ret->handler);
if (ret->buf == NULL) {
+ xmlCharEncCloseFunc(ret->handler);
xmlFreeSaveCtxt(ret);
return(NULL);
}
@@ -1831,6 +1832,7 @@ xmlSaveToFilename(const char *filename, const char *encoding, int options)
ret->buf = xmlOutputBufferCreateFilename(filename, ret->handler,
compression);
if (ret->buf == NULL) {
+ xmlCharEncCloseFunc(ret->handler);
xmlFreeSaveCtxt(ret);
return(NULL);
}
@@ -1853,28 +1855,15 @@ xmlSaveCtxtPtr
xmlSaveToBuffer(xmlBufferPtr buffer, const char *encoding, int options)
{
xmlSaveCtxtPtr ret;
- xmlOutputBufferPtr out_buff;
- xmlCharEncodingHandlerPtr handler;
ret = xmlNewSaveCtxt(encoding, options);
if (ret == NULL) return(NULL);
-
- if (encoding != NULL) {
- handler = xmlFindCharEncodingHandler(encoding);
- if (handler == NULL) {
- xmlFree(ret);
- return(NULL);
- }
- } else
- handler = NULL;
- out_buff = xmlOutputBufferCreateBuffer(buffer, handler);
- if (out_buff == NULL) {
- xmlFree(ret);
- if (handler) xmlCharEncCloseFunc(handler);
- return(NULL);
+ ret->buf = xmlOutputBufferCreateBuffer(buffer, ret->handler);
+ if (ret->buf == NULL) {
+ xmlCharEncCloseFunc(ret->handler);
+ xmlFreeSaveCtxt(ret);
+ return(NULL);
}
-
- ret->buf = out_buff;
return(ret);
}
@@ -1902,6 +1891,7 @@ xmlSaveToIO(xmlOutputWriteCallback iowrite,
if (ret == NULL) return(NULL);
ret->buf = xmlOutputBufferCreateIO(iowrite, ioclose, ioctx, ret->handler);
if (ret->buf == NULL) {
+ xmlCharEncCloseFunc(ret->handler);
xmlFreeSaveCtxt(ret);
return(NULL);
}
--
1.8.3.1
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