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authorJohn MacFarlane <jgm@berkeley.edu>2014-12-30 15:00:32 -0800
committerJohn MacFarlane <jgm@berkeley.edu>2014-12-30 15:00:32 -0800
commit834266acfdb2aa63e07ae03b08ae11ca21e00dcf (patch)
tree2318ffbb8e381a1cb2a04c347366207039421ff9 /src
parent1cea53dbc7b87434184c8a9a0901be5ea5a9c5a0 (diff)
Revert "Remove unneeded va_copy"
This reverts commit 485ef21b95e257e9d9cbcaa804c3c164f1f49a80. Apparently the va_copy IS needed, because without this code we get segfaults in some cases. Closes #253. @nwellnhof, can you have a look at this issue and comment? I understand that this code was removed for portability reasons. Is there an alternative solution?
Diffstat (limited to 'src')
-rw-r--r--src/buffer.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/src/buffer.c b/src/buffer.c
index f273f45..b508310 100644
--- a/src/buffer.c
+++ b/src/buffer.c
@@ -166,10 +166,13 @@ int cmark_strbuf_vprintf(cmark_strbuf *buf, const char *format, va_list ap)
ENSURE_SIZE(buf, expected_size);
while (1) {
+ va_list args;
+ va_copy(args, ap);
+
len = vsnprintf(
(char *)buf->ptr + buf->size,
buf->asize - buf->size,
- format, ap
+ format, args
);
if (len < 0) {