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- /*
- 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 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 fs/fs_getopt.c
- * @brief helper functions for command-line argument processing
- * @author Igor Wronsky, Christian Grothoff
- */
- #include "platform.h"
- #include "gnunet_fs_service.h"
- #include "fs_api.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_set_keywords (struct 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_new (struct GNUNET_FS_Uri);
- *uri = u;
- u->type = GNUNET_FS_URI_KSK;
- u->data.ksk.keywordCount = 0;
- u->data.ksk.keywords = NULL;
- }
- else
- {
- GNUNET_assert (u->type == GNUNET_FS_URI_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_append (u->data.ksk.keywords, u->data.ksk.keywordCount, 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_set_metadata (struct GNUNET_GETOPT_CommandLineProcessorContext
- *ctx, void *scls, const char *option,
- const char *value)
- {
- struct GNUNET_CONTAINER_MetaData **mm = scls;
- enum EXTRACTOR_MetaType 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;
- }
- /* Use GNUNET_STRINGS_get_utf8_args() in main() to acquire utf-8-encoded
- * commandline arguments, so that the following line is not needed.
- */
- /*tmp = GNUNET_STRINGS_to_utf8 (value, strlen (value), locale_charset ());*/
- tmp = GNUNET_strdup (value);
- type = EXTRACTOR_metatype_get_max ();
- while (type > 0)
- {
- type--;
- typename = EXTRACTOR_metatype_to_string (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, "<gnunet>", type,
- EXTRACTOR_METAFORMAT_UTF8,
- "text/plain",
- &tmp[strlen (typename) + 1],
- strlen (&tmp[strlen (typename) + 1]) +
- 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, "<gnunet>", type,
- EXTRACTOR_METAFORMAT_UTF8,
- "text/plain",
- &tmp[strlen (typename_i18n) + 1],
- strlen (&tmp
- [strlen (typename_i18n) + 1]) +
- 1);
- GNUNET_free (tmp);
- tmp = NULL;
- break;
- }
- }
- if (tmp != NULL)
- {
- GNUNET_CONTAINER_meta_data_insert (meta, "<gnunet>",
- EXTRACTOR_METATYPE_UNKNOWN,
- EXTRACTOR_METAFORMAT_UTF8, "text/plain",
- tmp, strlen (tmp) + 1);
- 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 */
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