* posix/wordexp.c (w_addword): Free word if realloc fails and it

	was allocated here.  [Coverity CID 219]

	* posix/getconf.c (print_all): Free confstr data after printing.
	[Coverity CID 218]

	* sysdeps/posix/getaddrinfo.c (gaih_inet): Free canon string if
	list allocation fails.  [Coverity CID 215]

	* nss/nsswitch.c (__nss_configure_lookup): Fix loop end condition.
	[Coverity CID 213]

	* argp/argp-help.c (hol_entry_cmp): Don't call canon_doc_option if
	string is NULL.  [Coverity CID 212]
	* argp/Makefile: Add rules to build and run bug-argp1.
	* argp/bug-argp1.c: New file.

	* io/ftw.c (ftw_dir): Use __rawmemchr instead of strchr to find
	end of string.
	* stdlib/canonicalize.c (__realpath): Likewise.

	* locale/programs/ld-time.c (time_finish): Don't dereference NULL
	pointer.  [Coverity CID 206]

	* elf/dl-dst.h (DL_DST_REQUIRED): Be prepared for missing link map
	in statically linked code.
	* elf/dl-load.c (_dl_dst_substitute): When replacing ORIGIN in
	statically built code, be prepared to have no link map.
	[Coverity CID 205]

	* argp/argp-help.c (fill_in_uparams): Handle STATE==NULL in
	dgettext calls. [Coverity CID 204]

	* argp/argp-help.c (struct uparams): Remove valid member.  Change
	the one user.
	(uparam_names): Reduce size.  Avoid relative relocations.
	Moved to read-only segment.
	(fill_in_uparams): Update for new layout.

	* sysdeps/unix/sysv/linux/ifaddrs.c (getifaddrs): Parameter can be
	assumed to always be != NULL. [Coverity CID 202]

	* argp/argp-help.c (hol_entry_help): Remove some dead code
	[Coverity CID 200].

	* nis/nss_nis/nis-service.c (_nss_nis_getservbyport_r): Optimize
	away a few more unconditional yperr2nss calls.
	(_nss_nis_getservbyname_r): Likewise.

2 files changed, 12 insertions, 7 deletions

diff --git a/sysdeps/posix/getaddrinfo.c b/sysdeps/posix/getaddrinfo.c
index fc0928676d..224381c8db 100644
--- a/sysdeps/posix/getaddrinfo.c
+++ b/sysdeps/posix/getaddrinfo.c
@@ -1042,12 +1042,16 @@ gaih_inet (const char *name, const struct gaih_service *service,
 	else
 	  socklen = sizeof (struct sockaddr_in);
 
+	struct addrinfo *pai_1st = pai;
 	for (st2 = st; st2 != NULL; st2 = st2->next)
 	  {
 	    struct addrinfo *ai;
 	    ai = *pai = malloc (sizeof (struct addrinfo) + socklen);
 	    if (ai == NULL)
-	      return -EAI_MEMORY;
+	      {
+		free ((char *) canon);
+		return -EAI_MEMORY;
+	      }
 
 	    ai->ai_flags = req->ai_flags;
 	    ai->ai_family = family;
@@ -1065,6 +1069,10 @@ gaih_inet (const char *name, const struct gaih_service *service,
 #endif /* _HAVE_SA_LEN */
 	    ai->ai_addr->sa_family = family;
 
+	    /* In case of an allocation error the list must be NULL
+	       terminated.  */
+	    ai->ai_next = NULL;
+
 	    if (family == AF_INET6)
 	      {
 		struct sockaddr_in6 *sin6p =
@@ -1088,7 +1096,6 @@ gaih_inet (const char *name, const struct gaih_service *service,
 
 	    pai = &(ai->ai_next);
 	  }
-	*pai = NULL;
 
 	++*naddrs;
 
diff --git a/sysdeps/unix/sysv/linux/ifaddrs.c b/sysdeps/unix/sysv/linux/ifaddrs.c
index f743f702f0..e6720f0ca2 100644
--- a/sysdeps/unix/sysv/linux/ifaddrs.c
+++ b/sysdeps/unix/sysv/linux/ifaddrs.c
@@ -1,5 +1,5 @@
 /* getifaddrs -- get names and addresses of all network interfaces
-   Copyright (C) 2003, 2004, 2005 Free Software Foundation, Inc.
+   Copyright (C) 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -358,8 +358,7 @@ getifaddrs (struct ifaddrs **ifap)
 				ifa_data.  */
   int result = 0;
 
-  if (ifap)
-    *ifap = NULL;
+  *ifap = NULL;
 
   if (! __no_netlink_support && __netlink_open (&nh) < 0)
     {
@@ -840,8 +839,7 @@ getifaddrs (struct ifaddrs **ifap)
 	memmove (ifas, &ifas[newlink], sizeof (struct ifaddrs_storage));
     }
 
-  if (ifap != NULL)
-    *ifap = &ifas[0].ifa;
+  *ifap = &ifas[0].ifa;
 
  exit_free:
   __netlink_free_handle (&nh);