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authorLukas Fleischer <cgit@cryptocrack.de>2011-04-05 08:35:43 (UTC)
committer Lars Hjemli <hjemli@gmail.com>2011-05-23 20:58:35 (UTC)
commita0bf375a1a9b74056a913f3687c6f5b42ad4acf6 (patch) (side-by-side diff)
treed8845fbb7fcf73da11f29673081ed2ca31964e2e
parent070e109c1413d28b54eb6123a9fd24ac98897554 (diff)
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Avoid null pointer dereference in reencode().
Returning "*txt" if "txt" is a null pointer is a bad thing. Spotted with clang-analyzer. Signed-off-by: Lukas Fleischer <cgit@cryptocrack.de> Signed-off-by: Lars Hjemli <hjemli@gmail.com>
Diffstat (more/less context) (show whitespace changes)
-rw-r--r--parsing.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/parsing.c b/parsing.c
index c9e4350..151c0fe 100644
--- a/parsing.c
+++ b/parsing.c
@@ -94,25 +94,28 @@ char *parse_user(char *t, char **name, char **email, unsigned long *date)
p++;
}
return p;
}
#ifdef NO_ICONV
#define reencode(a, b, c)
#else
const char *reencode(char **txt, const char *src_enc, const char *dst_enc)
{
char *tmp;
- if (!txt || !*txt || !src_enc || !dst_enc)
+ if (!txt)
+ return NULL;
+
+ if (!*txt || !src_enc || !dst_enc)
return *txt;
/* no encoding needed if src_enc equals dst_enc */
if(!strcasecmp(src_enc, dst_enc))
return *txt;
tmp = reencode_string(*txt, dst_enc, src_enc);
if (tmp) {
free(*txt);
*txt = tmp;
}
return *txt;