diff options
| -rw-r--r-- | src/common.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/src/common.c b/src/common.c index 744d0ad2..b62e34c7 100644 --- a/src/common.c +++ b/src/common.c @@ -584,6 +584,10 @@ gboolean is_valid_pin(const char *pin) { unsigned int i; + /* Pin must not be empty */ + if (pin == NULL || pin[0] == '\0') + return FALSE; + for (i = 0; i < strlen(pin); i++) if (pin[i] < '0' || pin[i] > '9') return FALSE; |