Update i686 libm-test-ulps

[thirdparty/glibc.git] / grp / putgrent.c

diff --git a/grp/putgrent.c b/grp/putgrent.c
index 7d7732a9c84805808139a9e5074367568f7270ab..93caea5071121d400c316e7e9138d601deac3be4 100644 (file)
--- a/grp/putgrent.c
+++ b/grp/putgrent.c
@@ -1,42 +1,42 @@
-/* Copyright (C) 1991, 1992, 1996, 1998 Free Software Foundation, Inc.
+/* Copyright (C) 1991-2023 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
-   modify it under the terms of the GNU Library General Public License as
-   published by the Free Software Foundation; either version 2 of the
-   License, or (at your option) any later version.
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
 
    The GNU C Library is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   Library General Public License for more details.
+   Lesser General Public License for more details.
 
-   You should have received a copy of the GNU Library General Public
-   License along with the GNU C Library; see the file COPYING.LIB.  If not,
-   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
-   Boston, MA 02111-1307, USA.  */
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <https://www.gnu.org/licenses/>.  */
 
 #include <errno.h>
+#include <nss.h>
 #include <stdio.h>
+#include <string.h>
 #include <grp.h>
 
-#ifdef USE_IN_LIBIO
-# define flockfile(s) _IO_flockfile (s)
-# define funlockfile(s) _IO_funlockfile (s)
-#endif
+#define flockfile(s) _IO_flockfile (s)
+#define funlockfile(s) _IO_funlockfile (s)
 
 #define _S(x)  x ? x : ""
 
 /* Write an entry to the given stream.
    This must know the format of the group file.  */
 int
-putgrent (gr, stream)
-     const struct group *gr;
-     FILE *stream;
+putgrent (const struct group *gr, FILE *stream)
 {
   int retval;
 
-  if (gr == NULL || stream == NULL)
+  if (__glibc_unlikely (gr == NULL) || __glibc_unlikely (stream == NULL)
+      || gr->gr_name == NULL || !__nss_valid_field (gr->gr_name)
+      || !__nss_valid_field (gr->gr_passwd)
+      || !__nss_valid_list_field (gr->gr_mem))
     {
       __set_errno (EINVAL);
       return -1;
@@ -44,17 +44,23 @@ putgrent (gr, stream)
 
   flockfile (stream);
 
-  retval = fprintf (stream, "%s:%s:%u:",
-                   gr->gr_name, _S (gr->gr_passwd), gr->gr_gid);
-  if (retval < 0)
-    return -1;
+  if (gr->gr_name[0] == '+' || gr->gr_name[0] == '-')
+    retval = fprintf (stream, "%s:%s::",
+                     gr->gr_name, _S (gr->gr_passwd));
+  else
+    retval = fprintf (stream, "%s:%s:%lu:",
+                     gr->gr_name, _S (gr->gr_passwd),
+                     (unsigned long int) gr->gr_gid);
+  if (__builtin_expect (retval, 0) < 0)
+    {
+      funlockfile (stream);
+      return -1;
+    }
 
   if (gr->gr_mem != NULL)
     {
-      int i;
-
-      for (i = 0 ; gr->gr_mem[i] != NULL; i++)
-       if (fprintf (stream, "%c%s", i == 0 ? ':' : ',', gr->gr_mem[i]) < 0)
+      for (size_t i = 0; gr->gr_mem[i] != NULL; i++)
+       if (fprintf (stream, i == 0 ? "%s" : ",%s", gr->gr_mem[i]) < 0)
          {
            /* What else can we do?  */
            funlockfile (stream);