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| author | dwmalone <dwmalone@FreeBSD.org> | 2001-06-18 16:09:24 +0000 |
|---|---|---|
| committer | dwmalone <dwmalone@FreeBSD.org> | 2001-06-18 16:09:24 +0000 |
| commit | 3f41cb9d845f29f7cc5902a58e6b42b85886a16a (patch) | |
| tree | eccc608297b02a4c0ab2e62ce1747d9b8c3967c7 /lib | |
| parent | 2012259e87bb2855f986d40741d15b6d6371986d (diff) | |
| download | FreeBSD-src-3f41cb9d845f29f7cc5902a58e6b42b85886a16a.zip FreeBSD-src-3f41cb9d845f29f7cc5902a58e6b42b85886a16a.tar.gz | |
If the username we are trying to look up in the db files won't fit into
the buffer then act like it doesn't exist. The buffer is always big enough
for any valid username.
PR: 27860
Reviewed by: nectar
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/libc/gen/getpwent.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/lib/libc/gen/getpwent.c b/lib/libc/gen/getpwent.c index f3bccd5..ae384ba 100644 --- a/lib/libc/gen/getpwent.c +++ b/lib/libc/gen/getpwent.c @@ -386,7 +386,9 @@ _local_getpw(rv, cb_data, ap) case _PW_KEYBYNAME: name = va_arg(ap, const char *); len = strlen(name); - memmove(bf + 1, name, (size_t)MIN(len, MAXLOGNAME)); + if (len > sizeof(bf) - 1) + return NS_NOTFOUND; + memmove(bf + 1, name, len); key.size = len + 1; break; case _PW_KEYBYUID: |
