From e87b5a8590c31cf93b5a9ff10ad74e20eea4c12f Mon Sep 17 00:00:00 2001
From: Christian Grothoff <christian@grothoff.org>
Date: Sat, 14 Jul 2012 19:52:00 +0000
Subject: -adding gnunet-config tool

---
 src/util/gnunet-config.c | 183 +++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 183 insertions(+)
 create mode 100644 src/util/gnunet-config.c

(limited to 'src/util/gnunet-config.c')

diff --git a/src/util/gnunet-config.c b/src/util/gnunet-config.c
new file mode 100644
index 000000000..5c8a715de
--- /dev/null
+++ b/src/util/gnunet-config.c
@@ -0,0 +1,183 @@
+/*
+     This file is part of GNUnet.
+     (C) 2012 Christian Grothoff (and other contributing authors)
+
+     GNUnet 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; either version 3, or (at your
+     option) any later version.
+
+     GNUnet 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 GNUnet; see the file COPYING.  If not, write to the
+     Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+     Boston, MA 02111-1307, USA.
+*/
+
+/**
+ * @file util/gnunet-config.c
+ * @brief tool to access and manipulate GNUnet configuration files
+ * @author Christian Grothoff
+ */
+#include "platform.h"
+#include "gnunet_util_lib.h"
+
+
+/**
+ * Name of the section
+ */
+static char *section;
+
+/**
+ * Name of the option
+ */
+static char *option;
+
+/**
+ * Value to set
+ */
+static char *value;
+
+/**
+ * Treat option as a filename.
+ */
+static int is_filename;
+
+/**
+ * Return value from 'main'.
+ */
+static int ret;
+
+
+/**
+ * Print each option in a given section.
+ *
+ * @param cls closure
+ * @param section name of the section
+ * @param option name of the option
+ * @param value value of the option
+ */
+static void 
+print_option (void *cls, const char *section,
+	      const char *option,
+	      const char *value)
+{
+  fprintf (stdout, 
+	   "%s = %s\n", option, value);
+}
+
+
+/**
+ * Main function that will be run by the scheduler.
+ *
+ * @param cls closure
+ * @param args remaining command-line arguments
+ * @param cfgfile name of the configuration file used (for saving, can be NULL!)
+ * @param cfg configuration
+ */
+static void
+run (void *cls, char *const *args, const char *cfgfile,
+     const struct GNUNET_CONFIGURATION_Handle *cfg)
+{
+  struct GNUNET_CONFIGURATION_Handle *out;
+
+  if (NULL == section)
+  {
+    fprintf (stderr, _("--section argument is required\n"));
+    ret = 1;
+    return;
+  }
+
+  if (NULL == value)
+  {
+    if (NULL == option)
+    {
+      GNUNET_CONFIGURATION_iterate_section_values (cfg, section,
+						   &print_option, NULL);
+    }
+    else
+    {
+      if (is_filename)
+      {
+	if (GNUNET_OK !=
+	    GNUNET_CONFIGURATION_get_value_filename (cfg, section, option, &value))
+	{
+	  fprintf (stderr, _("No value for option `%s' in section `%s'\n"),
+		   option, section);
+	  ret = 3;
+	  return;
+	}
+      }
+      else
+      {
+	if (GNUNET_OK !=
+	    GNUNET_CONFIGURATION_get_value_string (cfg, section, option, &value))
+	{
+	  fprintf (stderr, _("No value for option `%s' in section `%s'\n"),
+		   option, section);
+	  ret = 3;
+	  return;
+	}
+      }
+      fprintf (stdout, "%s\n", value);
+    }
+  }
+  else
+  {
+    if (NULL == option)
+    {
+      fprintf (stderr, _("--option argument required to set value\n"));
+      ret = 1;
+      return;
+    }
+    out = GNUNET_CONFIGURATION_dup (cfg);
+    GNUNET_CONFIGURATION_set_value_string (out, section, option, value);
+    if (GNUNET_OK != 
+	GNUNET_CONFIGURATION_write (out, cfgfile))
+      ret = 2;
+    GNUNET_CONFIGURATION_destroy (out);
+    return;    
+  }
+}
+
+
+/**
+ * The main function to obtain statistics in GNUnet.
+ *
+ * @param argc number of arguments from the command line
+ * @param argv command line arguments
+ * @return 0 ok, 1 on error
+ */
+int
+main (int argc, char *const *argv)
+{
+  static const struct GNUNET_GETOPT_CommandLineOption options[] = {
+    { 'f', "filename", NULL,
+      gettext_noop ("obtain option of value as a filename (with $-expansion)"),
+      0, &GNUNET_GETOPT_set_one, &is_filename },
+    { 's', "section", "SECTION",
+      gettext_noop ("name of the section to access"),
+      1, &GNUNET_GETOPT_set_string, &section },
+    { 'o', "option", "OPTION",
+      gettext_noop ("name of the option to access"),
+      1, &GNUNET_GETOPT_set_string, &option },
+    { 'V', "value", "VALUE",
+      gettext_noop ("value to set"),
+      1, &GNUNET_GETOPT_set_string, &value },
+    GNUNET_GETOPT_OPTION_END
+  };
+
+  if (GNUNET_OK != GNUNET_STRINGS_get_utf8_args (argc, argv, &argc, &argv))
+    return 2;
+
+  return (GNUNET_OK ==
+          GNUNET_PROGRAM_run (argc, argv, "gnunet-config [OPTIONS]",
+                              gettext_noop ("Manipulate GNUnet configuration files"),
+                              options, &run, NULL)) ? 0 : ret;
+}
+
+/* end of gnunet-config.c */
-- 
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