Submitted By: Jim Gifford <jim at linuxfromscratch dot org>
Date: 2006-11-20
Initial Package Version: 6.5
Upstream Status: Applied
Origin: http://lists.gnu.org/archive/html/bug-coreutils/2006-11/msg00156.html
Description: Fixes a segfault with in ls

diff -Naur coreutils-6.5.orig/lib/idcache.c coreutils-6.5/lib/idcache.c
--- coreutils-6.5.orig/lib/idcache.c	2006-11-07 06:42:11.000000000 -0800
+++ coreutils-6.5/lib/idcache.c	2006-11-20 23:16:09.000000000 -0800
@@ -19,7 +19,6 @@
 
 #include <config.h>
 
-#include <stddef.h>
 #include <stdio.h>
 #include <string.h>
 #include <sys/types.h>
@@ -41,8 +40,8 @@
       uid_t u;
       gid_t g;
     } id;
+  char *name;
   struct userid *next;
-  char name[FLEXIBLE_ARRAY_MEMBER];
 };
 
 static struct userid *user_alist;
@@ -57,17 +56,15 @@
 {
   register struct userid *tail;
   struct passwd *pwent;
-  char const *name;
 
   for (tail = user_alist; tail; tail = tail->next)
     if (tail->id.u == uid)
       return tail->name;
 
   pwent = getpwuid (uid);
-  name = pwent ? pwent->pw_name : "";
-  tail = xmalloc (offsetof (struct userid, name) + strlen (name) + 1);
+  tail = xmalloc (sizeof *tail);
   tail->id.u = uid;
-  strcpy (tail->name, name);
+  tail->name = pwent ? xstrdup (pwent->pw_name) : NULL;
 
   /* Add to the head of the list, so most recently used is first.  */
   tail->next = user_alist;
@@ -107,8 +104,8 @@
     }
 #endif
 
-  tail = xmalloc (offsetof (struct userid, name) + strlen (user) + 1);
-  strcpy (tail->name, user);
+  tail = xmalloc (sizeof *tail);
+  tail->name = xstrdup (user);
 
   /* Add to the head of the list, so most recently used is first.  */
   if (pwent)
@@ -135,17 +132,15 @@
 {
   register struct userid *tail;
   struct group *grent;
-  char const *name;
 
   for (tail = group_alist; tail; tail = tail->next)
     if (tail->id.g == gid)
       return tail->name;
 
   grent = getgrgid (gid);
-  name = grent ? grent->gr_name : NULL;
-  tail = xmalloc (offsetof (struct userid, name) + strlen (name) + 1);
+  tail = xmalloc (sizeof *tail);
   tail->id.g = gid;
-  strcpy (tail->name, name);
+  tail->name = grent ? xstrdup (grent->gr_name) : NULL;
 
   /* Add to the head of the list, so most recently used is first.  */
   tail->next = group_alist;
@@ -185,8 +180,8 @@
     }
 #endif
 
-  tail = xmalloc (offsetof (struct userid, name) + strlen (group) + 1);
-  strcpy (tail->name, group);
+  tail = xmalloc (sizeof *tail);
+  tail->name = xstrdup (group);
 
   /* Add to the head of the list, so most recently used is first.  */
   if (grent)