travelhacking

1 files changed, 192 insertions, 0 deletions

diff --git a/src/fs/fs_getopt.c b/src/fs/fs_getopt.c
new file mode 100644
index 000000000..8afe49852
--- /dev/null
+++ b/src/fs/fs_getopt.c
@@ -0,0 +1,192 @@
+/*
+     This file is part of GNUnet.
+     (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009 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 fs/fs_getopt.c
+ * @brief helper functions for command-line argument processing
+ * @author Igor Wronsky, Christian Grothoff
+ */
+#include "platform.h"
+#include "gnunet_fs_lib.h"
+
+
+
+/* ******************** command-line option parsing API *********************** */
+
+/**
+ * Command-line option parser function that allows the user
+ * to specify one or more '-k' options with keywords.  Each
+ * specified keyword will be added to the URI.  A pointer to
+ * the URI must be passed as the "scls" argument.
+ *
+ * @param ctx command line processor context
+ * @param scls must be of type "struct GNUNET_FS_Uri **"
+ * @param option name of the option (typically 'k')
+ * @param value command line argument given
+ * @return GNUNET_OK on success
+ */
+int
+GNUNET_FS_getopt_configure_set_keywords (GNUNET_GETOPT_CommandLineProcessorContext* ctx, 
+                                         void *scls,
+                                         const char *option,
+                                         const char *value)
+{
+  struct GNUNET_FS_Uri **uri = scls;
+  struct GNUNET_FS_Uri *u = *uri;
+  char *val;
+  size_t slen;
+
+  if (u == NULL)
+    {
+      u = GNUNET_malloc (sizeof (struct GNUNET_ECRS_URI));
+      *uri = u;
+      u->type = ksk;
+      u->data.ksk.keywordCount = 0;
+      u->data.ksk.keywords = NULL;
+    }
+  else
+    {
+      GNUNET_assert (u->type == ksk);
+    }
+  slen = strlen (value);
+  if (slen == 0)
+    return GNUNET_SYSERR;       /* cannot be empty */
+  if (value[0] == '+')
+    {
+      /* simply preserve the "mandatory" flag */
+      if (slen < 2)
+        return GNUNET_SYSERR;   /* empty keywords not allowed */
+      if ((value[1] == '"') && (slen > 3) && (value[slen - 1] == '"'))
+        {
+          /* remove the quotes, keep the '+' */
+          val = GNUNET_malloc (slen - 1);
+          val[0] = '+';
+          memcpy (&val[1], &value[2], slen - 3);
+          val[slen - 2] = '\0';
+        }
+      else
+        {
+          /* no quotes, just keep the '+' */
+          val = GNUNET_strdup (value);
+        }
+    }
+  else
+    {
+      if ((value[0] == '"') && (slen > 2) && (value[slen - 1] == '"'))
+        {
+          /* remove the quotes, add a space */
+          val = GNUNET_malloc (slen);
+          val[0] = ' ';
+          memcpy (&val[1], &value[1], slen - 2);
+          val[slen - 1] = '\0';
+        }
+      else
+        {
+          /* add a space to indicate "not mandatory" */
+          val = GNUNET_malloc (slen + 2);
+          strcpy (val, " ");
+          strcat (val, value);
+        }
+    }
+  GNUNET_array_grow (u->data.ksk.keywords,
+                     u->data.ksk.keywordCount, u->data.ksk.keywordCount + 1);
+  u->data.ksk.keywords[u->data.ksk.keywordCount - 1] = val;
+  return GNUNET_OK;
+}
+
+
+/**
+ * Command-line option parser function that allows the user to specify
+ * one or more '-m' options with metadata.  Each specified entry of
+ * the form "type=value" will be added to the metadata.  A pointer to
+ * the metadata must be passed as the "scls" argument.
+ *
+ * @param ctx command line processor context
+ * @param scls must be of type "struct GNUNET_MetaData **"
+ * @param option name of the option (typically 'k')
+ * @param value command line argument given
+ * @return GNUNET_OK on success
+ */
+int
+GNUNET_FS_getopt_configure_set_metadata (GNUNET_GETOPT_CommandLineProcessorContext* ctx, 
+                                         void *scls,
+                                         const char *option,
+                                         const char *value)
+
+{
+  struct GNUNET_CONTAINER_MetaData **mm = scls;
+  EXTRACTOR_KeywordType type;
+  const char *typename;
+  const char *typename_i18n;
+  struct GNUNET_CONTAINER_MetaData *meta;
+  char *tmp;
+
+  meta = *mm;
+  if (meta == NULL)
+    {
+      meta = GNUNET_CONTAINER_meta_data_create ();
+      *mm = meta;
+    }
+
+  tmp = GNUNET_STRINGS_to_utf8 (NULL, value, strlen (value),
+#if ENABLE_NLS
+                                nl_langinfo (CODESET)
+#else
+                                "utf-8"
+#endif
+    );
+  type = EXTRACTOR_getHighestKeywordTypeNumber ();
+  while (type > 0)
+    {
+      type--;
+      typename = EXTRACTOR_getKeywordTypeAsString (type);
+      typename_i18n = dgettext (LIBEXTRACTOR_GETTEXT_DOMAIN, typename);
+      if ((strlen (tmp) >= strlen (typename) + 1) &&
+          (tmp[strlen (typename)] == ':') &&
+          (0 == strncmp (typename, tmp, strlen (typename))))
+        {
+          GNUNET_CONTAINER_meta_data_insert (meta, type, &tmp[strlen (typename) + 1]);
+          GNUNET_free (tmp);
+          tmp = NULL;
+          break;
+        }
+      if ((strlen (tmp) >= strlen (typename_i18n) + 1) &&
+          (tmp[strlen (typename_i18n)] == ':') &&
+          (0 == strncmp (typename_i18n, tmp, strlen (typename_i18n))))
+        {
+          GNUNET_CONTAINER_meta_data_insert (meta, type,
+                                             &tmp[strlen (typename_i18n) + 1]);
+          GNUNET_free (tmp);
+          tmp = NULL;
+          break;
+        }
+    }
+  if (tmp != NULL)
+    {
+      GNUNET_CONTAINER_meta_data_insert (meta, EXTRACTOR_UNKNOWN, tmp);
+      GNUNET_free (tmp);
+      printf (_
+              ("Unknown metadata type in metadata option `%s'.  Using metadata type `unknown' instead.\n"),
+              value);
+    }
+  return GNUNET_OK;
+}
+
+/* end of fs_getopt.c */