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-rw-r--r--REORG.TODO/grp/fgetgrent_r.c107
1 files changed, 107 insertions, 0 deletions
diff --git a/REORG.TODO/grp/fgetgrent_r.c b/REORG.TODO/grp/fgetgrent_r.c
new file mode 100644
index 0000000000..5a4107ba9c
--- /dev/null
+++ b/REORG.TODO/grp/fgetgrent_r.c
@@ -0,0 +1,107 @@
+/* Copyright (C) 1991-2017 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, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <ctype.h>
+#include <errno.h>
+#include <grp.h>
+#include <stdio.h>
+
+#include <libio/iolibio.h>
+#define flockfile(s) _IO_flockfile (s)
+#define funlockfile(s) _IO_funlockfile (s)
+
+/* Define a line parsing function using the common code
+   used in the nss_files module.  */
+
+#define STRUCTURE	group
+#define ENTNAME		grent
+struct grent_data {};
+
+#define TRAILING_LIST_MEMBER		gr_mem
+#define TRAILING_LIST_SEPARATOR_P(c)	((c) == ',')
+#include <nss/nss_files/files-parse.c>
+LINE_PARSER
+(,
+ STRING_FIELD (result->gr_name, ISCOLON, 0);
+ if (line[0] == '\0'
+     && (result->gr_name[0] == '+' || result->gr_name[0] == '-'))
+   {
+     result->gr_passwd = NULL;
+     result->gr_gid = 0;
+   }
+ else
+   {
+     STRING_FIELD (result->gr_passwd, ISCOLON, 0);
+     if (result->gr_name[0] == '+' || result->gr_name[0] == '-')
+       INT_FIELD_MAYBE_NULL (result->gr_gid, ISCOLON, 0, 10, , 0)
+     else
+       INT_FIELD (result->gr_gid, ISCOLON, 0, 10,)
+   }
+ )
+
+
+/* Read one entry from the given stream.  */
+int
+__fgetgrent_r (FILE *stream, struct group *resbuf, char *buffer, size_t buflen,
+	       struct group **result)
+{
+  char *p;
+  int parse_result;
+
+  flockfile (stream);
+  do
+    {
+      buffer[buflen - 1] = '\xff';
+      p = fgets_unlocked (buffer, buflen, stream);
+      if (__builtin_expect (p == NULL, 0) && feof_unlocked (stream))
+	{
+	  funlockfile (stream);
+	  *result = NULL;
+	  __set_errno (ENOENT);
+	  return errno;
+	}
+      if (__builtin_expect (p == NULL, 0) || buffer[buflen - 1] != '\xff')
+	{
+	  funlockfile (stream);
+	  *result = NULL;
+	  __set_errno (ERANGE);
+	  return errno;
+	}
+
+      /* Skip leading blanks.  */
+      while (isspace (*p))
+	++p;
+    } while (*p == '\0' || *p == '#'	/* Ignore empty and comment lines.  */
+	     /* Parse the line.  If it is invalid, loop to
+		get the next line of the file to parse.  */
+	     || ! (parse_result = parse_line (p, resbuf,
+					      (void *) buffer, buflen,
+					      &errno)));
+
+  funlockfile (stream);
+
+  if (__builtin_expect (parse_result, 0) == -1)
+    {
+      /* The parser ran out of space.  */
+      *result = NULL;
+      return errno;
+    }
+
+  *result = resbuf;
+  return 0;
+}
+weak_alias (__fgetgrent_r, fgetgrent_r)