Prepare for radical source tree reorganization. zack/build-layout-experiment

All top-level files and directories are moved into a temporary storage
directory, REORG.TODO, except for files that will certainly still
exist in their current form at top level when we're done (COPYING,
COPYING.LIB, LICENSES, NEWS, README), all old ChangeLog files (which
are moved to the new directory OldChangeLogs, instead), and the
generated file INSTALL (which is just deleted; in the new order, there
will be no generated files checked into version control).

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)