Import glibc-mainline for 2006-08-16

git-svn-id: svn://svn.eglibc.org/fsf/trunk@4 7b3dc134-2b1b-0410-93df-9e9f96275f8d

1 files changed, 78 insertions, 0 deletions

diff --git a/libc/grp/putgrent.c b/libc/grp/putgrent.c
new file mode 100644
index 000000000..382d6a4da
--- /dev/null
+++ b/libc/grp/putgrent.c
@@ -0,0 +1,78 @@
+/* Copyright (C) 1991,92,96,98,99,2000,2005 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 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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#include <errno.h>
+#include <stdio.h>
+#include <grp.h>
+
+#ifdef USE_IN_LIBIO
+# define flockfile(s) _IO_flockfile (s)
+# define funlockfile(s) _IO_funlockfile (s)
+#endif
+
+#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;
+{
+  int retval;
+
+  if (__builtin_expect (gr == NULL, 0) || __builtin_expect (stream == NULL, 0))
+    {
+      __set_errno (EINVAL);
+      return -1;
+    }
+
+  flockfile (stream);
+
+  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, i == 0 ? "%s" : ",%s", gr->gr_mem[i]) < 0)
+	  {
+	    /* What else can we do?  */
+	    funlockfile (stream);
+	    return -1;
+	  }
+    }
+
+  retval = fputc_unlocked ('\n', stream);
+
+  funlockfile (stream);
+
+  return retval < 0 ? -1 : 0;
+}