Update.

2000-03-22  Ulrich Drepper  <drepper@redhat.com>

	* inet/getnameinfo.c (getnameinfo): Check that addrlen value is
	large enough.  Patch by YOSHIFUJI Hideaki <yoshfuji@v6.linux.or.jp>.

2000-03-22  Andreas Jaeger  <aj@suse.de>

	* sysdeps/unix/sysv/linux/powerpc/bits/mman.h (MADV_*): Add flags
	from latest Linux kernel.

diff --git a/ChangeLog b/ChangeLog
index 5d8d036..4aabd41 100644 (file)
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,13 @@
+2000-03-22  Ulrich Drepper  <drepper@redhat.com>
+
+       * inet/getnameinfo.c (getnameinfo): Check that addrlen value is
+       large enough.  Patch by YOSHIFUJI Hideaki <yoshfuji@v6.linux.or.jp>.
+
+2000-03-22  Andreas Jaeger  <aj@suse.de>
+
+       * sysdeps/unix/sysv/linux/powerpc/bits/mman.h (MADV_*): Add flags
+       from latest Linux kernel.
+
 2000-03-21  Andreas Jaeger  <aj@suse.de>
 
        * Versions.def: Add version 2.1.4.

diff --git a/inet/getnameinfo.c b/inet/getnameinfo.c
index 709f9ec..9a07092 100644 (file)
--- a/inet/getnameinfo.c
+++ b/inet/getnameinfo.c
@@ -172,8 +172,20 @@ getnameinfo (const struct sockaddr *sa, socklen_t addrlen, char *host,
   int herrno;
   char *tmpbuf = alloca (tmpbuflen);
   struct hostent th;
+  socklen_t min_addrlen = 0;
 
-  if (sa == NULL)
+  if (sa == NULL || addrlen < sizeof (sa_family_t))
+    return -1;
+
+  switch (sa->sa_family)
+    {
+    case AF_LOCAL:
+      min_addrlen = (socklen_t) (((struct sockaddr_un *) NULL)->sun_path);
+      break;
+    default:
+      min_addrlen = __libc_sa_len (sa->sa_family);
+    }
+  if (addrlen < min_addrlen)
     return -1;
 
   if (host != NULL && hostlen > 0)