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Diffstat (limited to 'src/util/extension_age_restriction.c')
-rw-r--r-- | src/util/extension_age_restriction.c | 182 |
1 files changed, 0 insertions, 182 deletions
diff --git a/src/util/extension_age_restriction.c b/src/util/extension_age_restriction.c deleted file mode 100644 index b29a8ca88..000000000 --- a/src/util/extension_age_restriction.c +++ /dev/null @@ -1,182 +0,0 @@ -/* - This file is part of TALER - Copyright (C) 2014-2020 Taler Systems SA - - TALER 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. - - TALER 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 - TALER; see the file COPYING. If not, see <http://www.gnu.org/licenses/> - */ -/** - * @file extension_age_restriction.c - * @brief Utility functions regarding age restriction - * @author Özgür Kesim - */ -#include "platform.h" -#include "taler_util.h" -#include "taler_extensions.h" -#include "stdint.h" - -/** - * - * @param cfg Handle to the GNUNET configuration - * @param[out] Mask for age restriction. Will be 0 if age restriction was not enabled in the config. - * @return Error if extension for age restriction was set, but age groups were - * invalid, OK otherwise. - */ -enum TALER_Extension_ReturnValue -TALER_get_age_mask (const struct GNUNET_CONFIGURATION_Handle *cfg, - struct TALER_AgeMask *mask) -{ - char *groups; - enum TALER_Extension_ReturnValue ret = TALER_Extension_ERROR_SYS; - - if ((GNUNET_YES != GNUNET_CONFIGURATION_have_value (cfg, - TALER_EXTENSION_SECTION_AGE_RESTRICTION, - "ENABLED")) || - (GNUNET_YES != GNUNET_CONFIGURATION_get_value_yesno (cfg, - TALER_EXTENSION_SECTION_AGE_RESTRICTION, - "ENABLED"))) - { - /* Age restriction is not enabled */ - mask->mask = 0; - return TALER_Extension_OK; - } - - /* Age restriction is enabled, extract age groups */ - if (GNUNET_OK != GNUNET_CONFIGURATION_get_value_string (cfg, - TALER_EXTENSION_SECTION_AGE_RESTRICTION, - "AGE_GROUPS", - &groups)) - { - /* FIXME: log error? */ - return TALER_Extension_ERROR_SYS; - } - if (groups == NULL) - { - /* No groups defined in config, return default_age_mask */ - mask->mask = TALER_EXTENSION_DEFAULT_AGE_MASK; - return TALER_Extension_OK; - } - - ret = TALER_parse_age_group_string (groups, mask); - GNUNET_free (groups); - return ret; -} - - -/** - * @param groups String representation of the age groups. Must be of the form - * a:b:...:n:m - * with - * 0 < a < b <...< n < m < 32 - * @param[out] mask Bit representation of the age groups. - * @return Error if string was invalid, OK otherwise. - */ -enum TALER_Extension_ReturnValue -TALER_parse_age_group_string (const char *groups, - struct TALER_AgeMask *mask) -{ - enum TALER_Extension_ReturnValue ret = TALER_Extension_ERROR_SYS; - char *pos; - unsigned int prev = 0; - unsigned int val; - char dummy; - - while (1) - { - pos = strchr (groups, ':'); - if (NULL != pos) - { - *pos = 0; - } - - if (1 != sscanf (groups, - "%u%c", - &val, - &dummy)) - { - /* Invalid input */ - mask->mask = 0; - ret = TALER_Extension_ERROR_PARSING; - break; - } - else if ((0 >= val) || (32 <= val) || (prev >= val)) - { - /* Invalid value */ - mask->mask = 0; - ret = TALER_Extension_ERROR_INVALID; - break; - } - - /* Set the corresponding bit in the mask */ - mask->mask |= 1 << val; - - if (NULL == pos) - { - /* We reached the end. Mark zeroth age-group and exit. */ - mask->mask |= 1; - ret = TALER_Extension_OK; - break; - } - - prev = val; - *pos = ':'; - groups = pos + 1; - } - - return ret; -} - - -/** - * Encodes the age mask into a string, like "8:10:12:14:16:18:21" - * - * @param mask Age mask - * @return String representation of the age mask, allocated by GNUNET_malloc. - * Can be used as value in the TALER config. - */ -char * -TALER_age_mask_to_string (const struct TALER_AgeMask *m) -{ - uint32_t mask = m->mask; - unsigned int n = 0; - char *buf = GNUNET_malloc (32 * 3); // max characters possible - char *pos = buf; - - if (NULL == buf) - { - return buf; - } - - while (mask != 0) - { - mask >>= 1; - n++; - if (0 == (mask & 1)) - { - continue; - } - - if (n > 9) - { - *(pos++) = '0' + n / 10; - } - *(pos++) = '0' + n % 10; - - if (0 != (mask >> 1)) - { - *(pos++) = ':'; - } - } - return buf; -} - - -/* end of extension_age_restriction.c */ |