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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_malloc (sizeof (struct GNUNET_FS_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_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;
}
#if ENABLE_NLS
tmp = GNUNET_STRINGS_to_utf8 (value, strlen (value), nl_langinfo (CODESET));
#else
tmp = GNUNET_STRINGS_to_utf8 (value, strlen (value), "utf-8");
#endif
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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