diff options
| author | Moritz Jodeit <moritz@cvs.openbsd.org> | 2005-05-02 17:38:42 +0000 |
|---|---|---|
| committer | Moritz Jodeit <moritz@cvs.openbsd.org> | 2005-05-02 17:38:42 +0000 |
| commit | f05ba942ed8ca9328c30e6b262e6cf2ed8fc31a4 (patch) | |
| tree | e2e9d7107be195b5b878690681765a3351fedcfa | |
| parent | b6bfa466061965778fc9f6a90e4896c75c9796ef (diff) | |
be more careful with snprintf. ok millert@
| -rw-r--r-- | lib/libc/net/gethostnamadr.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/lib/libc/net/gethostnamadr.c b/lib/libc/net/gethostnamadr.c index c643f2382ae..f0be24143c7 100644 --- a/lib/libc/net/gethostnamadr.c +++ b/lib/libc/net/gethostnamadr.c @@ -48,7 +48,7 @@ */ #if defined(LIBC_SCCS) && !defined(lint) -static const char rcsid[] = "$OpenBSD: gethostnamadr.c,v 1.61 2005/03/30 02:58:28 tedu Exp $"; +static const char rcsid[] = "$OpenBSD: gethostnamadr.c,v 1.62 2005/05/02 17:38:41 moritz Exp $"; #endif /* LIBC_SCCS and not lint */ #include <sys/param.h> @@ -702,7 +702,7 @@ gethostbyaddr(const char *addr, int len, int af) for (n = IN6ADDRSZ - 1; n >= 0; n--) { i = snprintf(qp, ep - qp, "%x.%x.", uaddr[n] & 0xf, (uaddr[n] >> 4) & 0xf); - if (i <= 0) { + if (i <= 0 || i >= ep - qp) { errno = EINVAL; h_errno = NETDB_INTERNAL; return (NULL); |