diff options
Diffstat (limited to 'src/util/config.c')
| -rw-r--r-- | src/util/config.c | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/src/util/config.c b/src/util/config.c index dc342fdcf..c00792469 100644 --- a/src/util/config.c +++ b/src/util/config.c @@ -130,6 +130,8 @@ enum GNUNET_GenericReturnValue TALER_config_get_currency (const struct GNUNET_CONFIGURATION_Handle *cfg, char **currency) { + size_t slen; + if (GNUNET_OK != GNUNET_CONFIGURATION_get_value_string (cfg, "taler", @@ -141,7 +143,8 @@ TALER_config_get_currency (const struct GNUNET_CONFIGURATION_Handle *cfg, "CURRENCY"); return GNUNET_SYSERR; } - if (strlen (*currency) >= TALER_CURRENCY_LEN) + slen = strlen (*currency); + if (slen >= TALER_CURRENCY_LEN) { GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Currency `%s' longer than the allowed limit of %u characters.", @@ -151,5 +154,15 @@ TALER_config_get_currency (const struct GNUNET_CONFIGURATION_Handle *cfg, *currency = NULL; return GNUNET_SYSERR; } + for (size_t i = 0; i<slen; i++) + if (! isalpha ((unsigned char) (*currency)[i])) + { + GNUNET_log (GNUNET_ERROR_TYPE_ERROR, + "Currency `%s' must only use characters from the A-Z range.", + *currency); + GNUNET_free (*currency); + *currency = NULL; + return GNUNET_SYSERR; + } return GNUNET_OK; } |