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Skinny: Don't do backspace if destination number is already empty 

This fix a out of bound memory write.
(normally unreachable with a real phone)
This commit is contained in:
Mathieu Parent 2011-12-17 21:04:11 +01:00
parent de498aeffe
commit 281f88ae39
1 changed files with 1 additions and 1 deletions
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2
src/mod/endpoints/mod_skinny/skinny_server.c
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@ -271,7 +271,7 @@ switch_status_t skinny_session_process_dest(switch_core_session_t *session, list
if (strlen(tech_pvt->caller_profile->destination_number) == 0) {/* no digit yet */
send_start_tone(listener, SKINNY_TONE_DIALTONE, 0, line_instance, tech_pvt->call_id);
}
if (backspace) { /* backspace */
if (backspace && strlen(tech_pvt->caller_profile->destination_number)) { /* backspace */
tech_pvt->caller_profile->destination_number[strlen(tech_pvt->caller_profile->destination_number)-1] = '\0';
if (strlen(tech_pvt->caller_profile->destination_number) == 0) {
send_select_soft_keys(listener, line_instance, tech_pvt->call_id, SKINNY_KEY_SET_OFF_HOOK, 0xffff);