diff options
Diffstat (limited to 'src/util/getopt_helpers.c')
| -rw-r--r-- | src/util/getopt_helpers.c | 94 |
1 files changed, 84 insertions, 10 deletions
diff --git a/src/util/getopt_helpers.c b/src/util/getopt_helpers.c index c836c90550..c55b22fb62 100644 --- a/src/util/getopt_helpers.c +++ b/src/util/getopt_helpers.c @@ -2,20 +2,18 @@ This file is part of GNUnet Copyright (C) 2006, 2011 GNUnet e.V. - 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 free software: you can redistribute it and/or modify it + under the terms of the GNU Affero General Public License as published + by the Free Software Foundation, either version 3 of the License, + 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., 51 Franklin Street, Fifth Floor, - Boston, MA 02110-1301, USA. + Affero General Public License for more details. + + You should have received a copy of the GNU Affero General Public License + along with this program. If not, see <http://www.gnu.org/licenses/>. */ /** @@ -793,6 +791,82 @@ GNUNET_GETOPT_option_uint (char shortName, } + +/** + * Set an option of type 'uint16_t' 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 'uint16_t'. + * + * @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 + */ +static int +set_uint16 (struct GNUNET_GETOPT_CommandLineProcessorContext *ctx, + void *scls, + const char *option, + const char *value) +{ + uint16_t *val = scls; + unsigned int v; + + (void) ctx; + if (1 != SSCANF (value, + "%u", + &v)) + { + FPRINTF (stderr, + _("You must pass a number to the `%s' option.\n"), + option); + return GNUNET_SYSERR; + } + if (v > UINT16_MAX) + { + FPRINTF (stderr, + _("You must pass a number below %u to the `%s' option.\n"), + (unsigned int) UINT16_MAX, + option); + return GNUNET_SYSERR; + } + *val = (uint16_t) v; + return GNUNET_OK; +} + + +/** + * Allow user to specify an uint16_t. + * + * @param shortName short name of the option + * @param name long name of the option + * @param argumentHelp help text for the option argument + * @param description long help text for the option + * @param[out] val set to the value specified at the command line + */ +struct GNUNET_GETOPT_CommandLineOption +GNUNET_GETOPT_option_uint16 (char shortName, + const char *name, + const char *argumentHelp, + const char *description, + uint16_t *val) +{ + struct GNUNET_GETOPT_CommandLineOption clo = { + .shortName = shortName, + .name = name, + .argumentHelp = argumentHelp, + .description = description, + .require_argument = 1, + .processor = &set_uint16, + .scls = (void *) val + }; + + return clo; +} + + /** * Closure for #set_base32(). */ |