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, 315 insertions, 0 deletions

diff --git a/REORG.TODO/nscd/nscd_conf.c b/REORG.TODO/nscd/nscd_conf.c
new file mode 100644
index 0000000000..9c301ad73d
--- /dev/null
+++ b/REORG.TODO/nscd/nscd_conf.c
@@ -0,0 +1,315 @@
+/* Copyright (c) 1998-2017 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Thorsten Kukuk <kukuk@suse.de>, 1998.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published
+   by the Free Software Foundation; version 2 of the License, or
+   (at your option) any later version.
+
+   This program 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 General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, see <http://www.gnu.org/licenses/>.  */
+
+#include <ctype.h>
+#include <errno.h>
+#include <error.h>
+#include <libintl.h>
+#include <malloc.h>
+#include <pwd.h>
+#include <stdio.h>
+#include <stdio_ext.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/param.h>
+#include <sys/types.h>
+
+#include "dbg_log.h"
+#include "nscd.h"
+
+
+/* Names of the databases.  */
+const char *const dbnames[lastdb] =
+{
+  [pwddb] = "passwd",
+  [grpdb] = "group",
+  [hstdb] = "hosts",
+  [servdb] = "services",
+  [netgrdb] = "netgroup"
+};
+
+
+static int
+find_db (const char *name)
+{
+  for (int cnt = 0; cnt < lastdb; ++cnt)
+    if (strcmp (name, dbnames[cnt]) == 0)
+      return cnt;
+
+  error (0, 0, _("database %s is not supported"), name);
+  return -1;
+}
+
+int
+nscd_parse_file (const char *fname, struct database_dyn dbs[lastdb])
+{
+  FILE *fp;
+  char *line, *cp, *entry, *arg1, *arg2;
+  size_t len;
+  int cnt;
+  const unsigned int initial_error_message_count = error_message_count;
+
+  /* Open the configuration file.  */
+  fp = fopen (fname, "r");
+  if (fp == NULL)
+    return -1;
+
+  /* The stream is not used by more than one thread.  */
+  (void) __fsetlocking (fp, FSETLOCKING_BYCALLER);
+
+  line = NULL;
+  len = 0;
+
+  do
+    {
+      ssize_t n = getline (&line, &len, fp);
+      if (n < 0)
+	break;
+      if (line[n - 1] == '\n')
+	line[n - 1] = '\0';
+
+      /* Because the file format does not know any form of quoting we
+	 can search forward for the next '#' character and if found
+	 make it terminating the line.  */
+      *strchrnul (line, '#') = '\0';
+
+      /* If the line is blank it is ignored.  */
+      if (line[0] == '\0')
+	continue;
+
+      entry = line;
+      while (isspace (*entry) && *entry != '\0')
+	++entry;
+      cp = entry;
+      while (!isspace (*cp) && *cp != '\0')
+	++cp;
+      arg1 = cp;
+      ++arg1;
+      *cp = '\0';
+      if (strlen (entry) == 0)
+	error (0, 0, _("Parse error: %s"), line);
+      while (isspace (*arg1) && *arg1 != '\0')
+	++arg1;
+      cp = arg1;
+      while (!isspace (*cp) && *cp != '\0')
+	++cp;
+      arg2 = cp;
+      ++arg2;
+      *cp = '\0';
+      if (strlen (arg2) > 0)
+	{
+	  while (isspace (*arg2) && *arg2 != '\0')
+	    ++arg2;
+	  cp = arg2;
+	  while (!isspace (*cp) && *cp != '\0')
+	    ++cp;
+	  *cp = '\0';
+	}
+
+      if (strcmp (entry, "positive-time-to-live") == 0)
+	{
+	  int idx = find_db (arg1);
+	  if (idx >= 0)
+	    dbs[idx].postimeout = atol (arg2);
+	}
+      else if (strcmp (entry, "negative-time-to-live") == 0)
+	{
+	  int idx = find_db (arg1);
+	  if (idx >= 0)
+	    dbs[idx].negtimeout = atol (arg2);
+	}
+      else if (strcmp (entry, "suggested-size") == 0)
+	{
+	  int idx = find_db (arg1);
+	  if (idx >= 0)
+	    dbs[idx].suggested_module
+	      = atol (arg2) ?: DEFAULT_SUGGESTED_MODULE;
+	}
+      else if (strcmp (entry, "enable-cache") == 0)
+	{
+	  int idx = find_db (arg1);
+	  if (idx >= 0)
+	    {
+	      if (strcmp (arg2, "no") == 0)
+		dbs[idx].enabled = 0;
+	      else if (strcmp (arg2, "yes") == 0)
+		dbs[idx].enabled = 1;
+	    }
+	}
+      else if (strcmp (entry, "check-files") == 0)
+	{
+	  int idx = find_db (arg1);
+	  if (idx >= 0)
+	    {
+	      if (strcmp (arg2, "no") == 0)
+		dbs[idx].check_file = 0;
+	      else if (strcmp (arg2, "yes") == 0)
+		dbs[idx].check_file = 1;
+	    }
+	}
+      else if (strcmp (entry, "max-db-size") == 0)
+	{
+	  int idx = find_db (arg1);
+	  if (idx >= 0)
+	    dbs[idx].max_db_size = atol (arg2) ?: DEFAULT_MAX_DB_SIZE;
+	}
+      else if (strcmp (entry, "logfile") == 0)
+	set_logfile (arg1);
+      else if (strcmp (entry, "debug-level") == 0)
+	{
+	  int level = atoi (arg1);
+	  if (level > 0)
+	    debug_level = level;
+	}
+      else if (strcmp (entry, "threads") == 0)
+	{
+	  if (nthreads == -1)
+	    nthreads = MAX (atol (arg1), lastdb);
+	}
+      else if (strcmp (entry, "max-threads") == 0)
+	{
+	  max_nthreads = MAX (atol (arg1), lastdb);
+	}
+      else if (strcmp (entry, "server-user") == 0)
+	{
+	  if (!arg1)
+	    error (0, 0, _("Must specify user name for server-user option"));
+	  else
+	    server_user = xstrdup (arg1);
+	}
+      else if (strcmp (entry, "stat-user") == 0)
+	{
+	  if (arg1 == NULL)
+	    error (0, 0, _("Must specify user name for stat-user option"));
+	  else
+	    {
+	      stat_user = xstrdup (arg1);
+
+	      struct passwd *pw = getpwnam (stat_user);
+	      if (pw != NULL)
+		stat_uid = pw->pw_uid;
+	    }
+	}
+      else if (strcmp (entry, "persistent") == 0)
+	{
+	  int idx = find_db (arg1);
+	  if (idx >= 0)
+	    {
+	      if (strcmp (arg2, "no") == 0)
+		dbs[idx].persistent = 0;
+	      else if (strcmp (arg2, "yes") == 0)
+		dbs[idx].persistent = 1;
+	    }
+	}
+      else if (strcmp (entry, "shared") == 0)
+	{
+	  int idx = find_db (arg1);
+	  if (idx >= 0)
+	    {
+	      if (strcmp (arg2, "no") == 0)
+		dbs[idx].shared = 0;
+	      else if (strcmp (arg2, "yes") == 0)
+		dbs[idx].shared = 1;
+	    }
+	}
+      else if (strcmp (entry, "reload-count") == 0)
+	{
+	  if (strcasecmp (arg1, "unlimited") == 0)
+	    reload_count = UINT_MAX;
+	  else
+	    {
+	      unsigned long int count = strtoul (arg1, NULL, 0);
+	      if (count > UINT8_MAX - 1)
+		reload_count = UINT_MAX;
+	      else
+		reload_count = count;
+	    }
+	}
+      else if (strcmp (entry, "paranoia") == 0)
+	{
+	  if (strcmp (arg1, "no") == 0)
+	    paranoia = 0;
+	  else if (strcmp (arg1, "yes") == 0)
+	    paranoia = 1;
+	}
+      else if (strcmp (entry, "restart-interval") == 0)
+	{
+	  if (arg1 != NULL)
+	    restart_interval = atol (arg1);
+	  else
+	    error (0, 0, _("Must specify value for restart-interval option"));
+	}
+      else if (strcmp (entry, "auto-propagate") == 0)
+	{
+	  int idx = find_db (arg1);
+	  if (idx >= 0)
+	    {
+	      if (strcmp (arg2, "no") == 0)
+		dbs[idx].propagate = 0;
+	      else if (strcmp (arg2, "yes") == 0)
+		dbs[idx].propagate = 1;
+	    }
+	}
+      else
+	error (0, 0, _("Unknown option: %s %s %s"), entry, arg1, arg2);
+    }
+  while (!feof_unlocked (fp));
+
+  if (paranoia)
+    {
+      restart_time = time (NULL) + restart_interval;
+
+      /* Save the old current workding directory if we are in paranoia
+	 mode.  We have to change back to it.  */
+      oldcwd = get_current_dir_name ();
+      if (oldcwd == NULL)
+	{
+	  error (0, 0, _("\
+cannot get current working directory: %s; disabling paranoia mode"),
+		   strerror (errno));
+	  paranoia = 0;
+	}
+    }
+
+  /* Enforce sanity.  */
+  if (max_nthreads < nthreads)
+    max_nthreads = nthreads;
+
+  for (cnt = 0; cnt < lastdb; ++cnt)
+    {
+      size_t datasize = (sizeof (struct database_pers_head)
+			 + roundup (dbs[cnt].suggested_module
+				    * sizeof (ref_t), ALIGN)
+			 + (dbs[cnt].suggested_module
+			    * DEFAULT_DATASIZE_PER_BUCKET));
+      if (datasize > dbs[cnt].max_db_size)
+	{
+	  error (0, 0, _("maximum file size for %s database too small"),
+		   dbnames[cnt]);
+	  dbs[cnt].max_db_size = datasize;
+	}
+
+    }
+
+  /* Free the buffer.  */
+  free (line);
+  /* Close configuration file.  */
+  fclose (fp);
+
+  return error_message_count != initial_error_message_count;
+}