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| author | Rich Felker <dalias@aerifal.cx> | 2016-10-20 13:22:20 -0400 |
|---|---|---|
| committer | Rich Felker <dalias@aerifal.cx> | 2016-10-20 13:22:20 -0400 |
| commit | f33b17585058381491e6fda08f491b8e48c7980c (patch) | |
| tree | f451555ca40b5583925f24f739fdcf1592616fc7 | |
| parent | b24f1d2520c87077cef21e085893e5f3c565a6df (diff) | |
| download | musl-f33b17585058381491e6fda08f491b8e48c7980c.tar.gz musl-f33b17585058381491e6fda08f491b8e48c7980c.tar.xz musl-f33b17585058381491e6fda08f491b8e48c7980c.zip | |
fix gratuitous undefined behavior in strptime
accessing an object of type const char *restrict as if it had type char * is not defined.
| -rw-r--r-- | src/time/strptime.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/src/time/strptime.c b/src/time/strptime.c index f41f55f2..55c7ed1b 100644 --- a/src/time/strptime.c +++ b/src/time/strptime.c @@ -22,8 +22,13 @@ char *strptime(const char *restrict s, const char *restrict f, struct tm *restri } f++; if (*f == '+') f++; - if (isdigit(*f)) w=strtoul(f, (void *)&f, 10); - else w=-1; + if (isdigit(*f)) { + char *new_f; + w=strtoul(f, &new_f, 10); + f = new_f; + } else { + w=-1; + } adj=0; switch (*f++) { case 'a': case 'A': |