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Diffstat (limited to 'nss')
-rw-r--r--nss/getent.c20
1 files changed, 18 insertions, 2 deletions
diff --git a/nss/getent.c b/nss/getent.c
index 1ddd67ad23..7a755f8b1c 100644
--- a/nss/getent.c
+++ b/nss/getent.c
@@ -207,7 +207,15 @@ group_keys (int number, char *key[])
   for (i = 0; i < number; ++i)
     {
       if (isdigit (key[i][0]))
-	grp = getgrgid (atol (key[i]));
+	{
+           char *ep;
+           gid_t arg_gid = strtoul (key[i], &ep, 10); 
+
+           if (*key[i] != '\0' && *ep == '\0')  /* valid numeric uid */
+             grp = getgrgid (arg_gid);
+           else
+             grp = NULL;
+	}
       else
 	grp = getgrnam (key[i]);
 
@@ -404,7 +412,15 @@ passwd_keys (int number, char *key[])
   for (i = 0; i < number; ++i)
     {
       if (isdigit (key[i][0]))
-	pwd = getpwuid (atol (key[i]));
+        {
+	   char *ep;
+	   uid_t arg_uid = strtoul (key[i], &ep, 10); 
+
+           if (*key[i] != '\0' && *ep == '\0')  /* valid numeric uid */
+	     pwd = getpwuid (arg_uid);
+           else
+             pwd = NULL;
+        }
       else
 	pwd = getpwnam (key[i]);