Imported Upstream version 0.9.2upstream/0.9.2

1 files changed, 290 insertions, 0 deletions

diff --git a/src/util/getopt_helpers.c b/src/util/getopt_helpers.c
new file mode 100644
index 0000000..8fb3673
--- /dev/null
+++ b/src/util/getopt_helpers.c
@@ -0,0 +1,290 @@
+/*
+     This file is part of GNUnet
+     (C) 2006, 2011 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 2, 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 src/util/getopt_helpers.c
+ * @brief implements command line that sets option
+ * @author Christian Grothoff
+ */
+
+#include "platform.h"
+#include "gnunet_common.h"
+#include "gnunet_getopt_lib.h"
+
+#define LOG(kind,...) GNUNET_log_from (kind, "util", __VA_ARGS__)
+
+
+/**
+ * Print out program version (implements --version).
+ *
+ * @param ctx command line processing context
+ * @param scls additional closure (points to version string)
+ * @param option name of the option
+ * @param value not used (NULL)
+ * @return GNUNET_SYSERR (do not continue)
+ */
+int
+GNUNET_GETOPT_print_version_ (struct GNUNET_GETOPT_CommandLineProcessorContext
+                              *ctx, void *scls, const char *option,
+                              const char *value)
+{
+  const char *version = scls;
+
+  printf ("%s v%s\n", ctx->binaryName, version);
+  return GNUNET_SYSERR;
+}
+
+
+
+#define BORDER 29
+
+/**
+ * Print out details on command line options (implements --help).
+ *
+ * @param ctx command line processing context
+ * @param scls additional closure (points to about text)
+ * @param option name of the option
+ * @param value not used (NULL)
+ * @return GNUNET_SYSERR (do not continue)
+ */
+int
+GNUNET_GETOPT_format_help_ (struct GNUNET_GETOPT_CommandLineProcessorContext
+                            *ctx, void *scls, const char *option,
+                            const char *value)
+{
+  const char *about = scls;
+  size_t slen;
+  unsigned int i;
+  int j;
+  size_t ml;
+  size_t p;
+  char *scp;
+  const char *trans;
+  const struct GNUNET_GETOPT_CommandLineOption *opt;
+
+  printf ("%s\n%s\n", ctx->binaryOptions, gettext (about));
+  printf (_
+          ("Arguments mandatory for long options are also mandatory for short options.\n"));
+  i = 0;
+  opt = ctx->allOptions;
+  while (opt[i].description != NULL)
+  {
+    if (opt[i].shortName == '\0')
+      printf ("      ");
+    else
+      printf ("  -%c, ", opt[i].shortName);
+    printf ("--%s", opt[i].name);
+    slen = 8 + strlen (opt[i].name);
+    if (opt[i].argumentHelp != NULL)
+    {
+      printf ("=%s", opt[i].argumentHelp);
+      slen += 1 + strlen (opt[i].argumentHelp);
+    }
+    if (slen > BORDER)
+    {
+      printf ("\n%*s", BORDER, "");
+      slen = BORDER;
+    }
+    if (slen < BORDER)
+    {
+      printf ("%*s", (int) (BORDER - slen), "");
+      slen = BORDER;
+    }
+    if (0 < strlen (opt[i].description))
+      trans = gettext (opt[i].description);
+    else
+      trans = "";
+    ml = strlen (trans);
+    p = 0;
+OUTER:
+    while (ml - p > 78 - slen)
+    {
+      for (j = p + 78 - slen; j > p; j--)
+      {
+        if (isspace ((unsigned char) trans[j]))
+        {
+          scp = GNUNET_malloc (j - p + 1);
+          memcpy (scp, &trans[p], j - p);
+          scp[j - p] = '\0';
+          printf ("%s\n%*s", scp, BORDER + 2, "");
+          GNUNET_free (scp);
+          p = j + 1;
+          slen = BORDER + 2;
+          goto OUTER;
+        }
+      }
+      /* could not find space to break line */
+      scp = GNUNET_malloc (78 - slen + 1);
+      memcpy (scp, &trans[p], 78 - slen);
+      scp[78 - slen] = '\0';
+      printf ("%s\n%*s", scp, BORDER + 2, "");
+      GNUNET_free (scp);
+      slen = BORDER + 2;
+      p = p + 78 - slen;
+    }
+    /* print rest */
+    if (p < ml)
+      printf ("%s\n", &trans[p]);
+    if (strlen (trans) == 0)
+      printf ("\n");
+    i++;
+  }
+  printf ("Report bugs to gnunet-developers@gnu.org.\n"
+          "GNUnet home page: http://www.gnu.org/software/gnunet/\n"
+          "General help using GNU software: http://www.gnu.org/gethelp/\n");
+  return GNUNET_SYSERR;
+}
+
+
+/**
+ * Set an option of type 'unsigned int' from the command line. Each
+ * time the option flag is given, the value is incremented by one.
+ * A pointer to this function should be passed as part of the
+ * 'struct GNUNET_GETOPT_CommandLineOption' array to initialize options
+ * of this type.  It should be followed by a pointer to a value of
+ * type 'int'.
+ *
+ * @param ctx command line processing context
+ * @param scls additional closure (will point to the 'int')
+ * @param option name of the option
+ * @param value not used (NULL)
+ * @return GNUNET_OK
+ */
+int
+GNUNET_GETOPT_increment_value (struct GNUNET_GETOPT_CommandLineProcessorContext
+                               *ctx, void *scls, const char *option,
+                               const char *value)
+{
+  int *val = scls;
+
+  (*val)++;
+  return GNUNET_OK;
+}
+
+
+/**
+ * Set an option of type 'int' from the command line to 1 if the
+ * given option is present.
+ * A pointer to this function should be passed as part of the
+ * 'struct GNUNET_GETOPT_CommandLineOption' array to initialize options
+ * of this type.  It should be followed by a pointer to a value of
+ * type 'int'.
+ *
+ * @param ctx command line processing context
+ * @param scls additional closure (will point to the 'int')
+ * @param option name of the option
+ * @param value not used (NULL)
+ * @return GNUNET_OK
+ */
+int
+GNUNET_GETOPT_set_one (struct GNUNET_GETOPT_CommandLineProcessorContext *ctx,
+                       void *scls, const char *option, const char *value)
+{
+  int *val = scls;
+
+  *val = 1;
+  return GNUNET_OK;
+}
+
+
+/**
+ * Set an option of type 'char *' from the command line.
+ * A pointer to this function should be passed as part of the
+ * 'struct GNUNET_GETOPT_CommandLineOption' array to initialize options
+ * of this type.  It should be followed by a pointer to a value of
+ * type 'char *'.
+ *
+ * @param ctx command line processing context
+ * @param scls additional closure (will point to the 'char *',
+ *             which will be allocated)
+ * @param option name of the option
+ * @param value actual value of the option (a string)
+ * @return GNUNET_OK
+ */
+int
+GNUNET_GETOPT_set_string (struct GNUNET_GETOPT_CommandLineProcessorContext *ctx,
+                          void *scls, const char *option, const char *value)
+{
+  char **val = scls;
+
+  GNUNET_assert (value != NULL);
+  GNUNET_free_non_null (*val);
+  *val = GNUNET_strdup (value);
+  return GNUNET_OK;
+}
+
+
+/**
+ * Set an option of type 'unsigned long long' from the command line.
+ * A pointer to this function should be passed as part of the
+ * 'struct GNUNET_GETOPT_CommandLineOption' array to initialize options
+ * of this type.  It should be followed by a pointer to a value of
+ * type 'unsigned long long'.
+ *
+ * @param ctx command line processing context
+ * @param scls additional closure (will point to the 'unsigned long long')
+ * @param option name of the option
+ * @param value actual value of the option as a string.
+ * @return GNUNET_OK if parsing the value worked
+ */
+int
+GNUNET_GETOPT_set_ulong (struct GNUNET_GETOPT_CommandLineProcessorContext *ctx,
+                         void *scls, const char *option, const char *value)
+{
+  unsigned long long *val = scls;
+
+  if (1 != SSCANF (value, "%llu", val))
+  {
+    FPRINTF (stderr, _("You must pass a number to the `%s' option.\n"), option);
+    return GNUNET_SYSERR;
+  }
+  return GNUNET_OK;
+}
+
+
+/**
+ * Set an option of type 'unsigned int' from the command line.
+ * A pointer to this function should be passed as part of the
+ * 'struct GNUNET_GETOPT_CommandLineOption' array to initialize options
+ * of this type.  It should be followed by a pointer to a value of
+ * type 'unsigned int'.
+ *
+ * @param ctx command line processing context
+ * @param scls additional closure (will point to the 'unsigned int')
+ * @param option name of the option
+ * @param value actual value of the option as a string.
+ * @return GNUNET_OK if parsing the value worked
+ */
+int
+GNUNET_GETOPT_set_uint (struct GNUNET_GETOPT_CommandLineProcessorContext *ctx,
+                        void *scls, const char *option, const char *value)
+{
+  unsigned int *val = scls;
+
+  if (1 != SSCANF (value, "%u", val))
+  {
+    FPRINTF (stderr, _("You must pass a number to the `%s' option.\n"), option);
+    return GNUNET_SYSERR;
+  }
+  return GNUNET_OK;
+}
+
+
+/* end of getopt_helpers.c */