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| author | Mark Adler <zlib@madler.net> | 2017-10-12 19:27:59 -0700 |
|---|---|---|
| committer | Mark Adler <zlib@madler.net> | 2017-10-12 19:27:59 -0700 |
| commit | ae49d1472ec176ddc53a3a4905f91d46344386e6 (patch) | |
| tree | 0608094d9ab97a3abe1363af7c14a9ca1e5a6233 | |
| parent | 3c46f5ddb5d4c6203805209076249dd80589682b (diff) | |
| download | zlib-ae49d1472ec176ddc53a3a4905f91d46344386e6.tar.gz zlib-ae49d1472ec176ddc53a3a4905f91d46344386e6.tar.bz2 zlib-ae49d1472ec176ddc53a3a4905f91d46344386e6.zip | |
Avoid an undefined behavior of memcpy() in gzappend().
| -rw-r--r-- | examples/gzappend.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/examples/gzappend.c b/examples/gzappend.c index 662dec3..d7eea3e 100644 --- a/examples/gzappend.c +++ b/examples/gzappend.c | |||
| @@ -137,7 +137,7 @@ local void rotate(unsigned char *list, unsigned len, unsigned rot) | |||
| 137 | /* do simple left shift by one */ | 137 | /* do simple left shift by one */ |
| 138 | if (rot == 1) { | 138 | if (rot == 1) { |
| 139 | tmp = *list; | 139 | tmp = *list; |
| 140 | memcpy(list, list + 1, len - 1); | 140 | memmove(list, list + 1, len - 1); |
| 141 | *last = tmp; | 141 | *last = tmp; |
| 142 | return; | 142 | return; |
| 143 | } | 143 | } |