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User who did this - Hugh Waite (hugh.waite)

Attached to Project - sip-router Summary - Segfault in 4.1 when cannot reverse resolve Task Type - Bug Report Category - Core Status - Unconfirmed Assigned To - Operating System - All Severity - High Priority - Normal Reported Version - Development Due in Version - Undecided Due Date - Undecided Details - A Segfault is occuring on the latest 4.1 during startup when attempting to resolve the address in a 'listen' config directive. It can be generated when running kamailio -c, when the IP address is not resolveable. The problem goes away once the DNS entry is available. <code> #!substdef "/PRIV_IP_ADDR/10.179.31.235/" #!substdef "/PUBL_IP_ADDR/WW.XX.YY.ZZ/" ... listen=tcp:"PRIV_IP_ADDR":80 advertise "PUBL_IP_ADDR":80 ... </code> Backtrace: <code>(gdb) bt full #0 0x0000000000443d81 in counter_inc (name=<value optimized out>) at counters.h:126 No locals. #1 dns_resolvehost (name=<value optimized out>) at dns_cache.c:2602 host = {s = 0x2 <Address 0x2 out of bounds>, len = 4760762} ret = <value optimized out> #2 0x00000000004e5cb7 in new_sock_info (name=<value optimized out>, addr_l=<value optimized out>, port=<value optimized out>, proto=<value optimized out>, usename=<value optimized out>, useport=5080, flags=SI_NONE) at socket_info.c:297 si = 0x7fbe68525690 n = <value optimized out> he = <value optimized out> p = <value optimized out> __FUNCTION__ = "new_sock_info" #3 0x00000000004e6091 in new_sock2list (name=<value optimized out>, addr_l=<value optimized out>, port=<value optimized out>, proto=<value optimized out>, usename=<value optimized out>, useport=<value optimized out>, flags=SI_NONE, list=0x84e6d8) at socket_info.c:727 si = <value optimized out> #4 0x00000000004eb48d in add_listen_advertise_iface (name=0x7fbe685252a0 "10.179.31.235", addr_l=0x0, port=5080, proto=2, usename=0x7fbe685255e0 "edge05-int.crocodilertc.net", useport=5080, flags=SI_NONE) at socket_info.c:805 list = 0x84e6d8 c_proto = 2 a_l = <value optimized out> c_port = <value optimized out> #5 0x00000000005b6e2d in yyparse () at cfg.y:1419 yystate = <value optimized out> yyerrstatus = 0 yyssa = {0, 165, 19, 199, 462, 739, 839, 1014, 1205, 0, 0, 0, 20872, 26926, 32702, 0, 1, 0, 0, 0, 0, 0, 0, 0, 1, 0, 32702, 0, 20872, 26926, 32702, 0, 0, 0, 0, 0, 21728, 26926, 32702, 0, 26720, 8970, 32767, 0, 1, 0, 0, 0, 26744, 8970, 32767, 0, 21728, 26926, 1, 0, 26752, 8970, 32767, 0, -13839, 64, 0, 0, 26776, 8970, 32767, 0, 8160, 26893, 1, 0, 1, 0, 0, 0, -14645, 64, 0, 0, 27720, 26769, 32702, 0, 8456, 26770, 32702, 0, 27200, 8970, 32767, 0, -25944, 84, 0, 0, 8, 0, 0, 0, 14853, ---Type <return> to continue, or q <return> to quit--- 26783, 32702, 0, 7808, 26826, 32702, 0, 7896, 26826, 32702, 0, 12536, 26770, 32702, 0, -12288, 26925, 32702, 0, 8016, 26706, 32702, 0, -1, -1, 0, 0, -11272, 26769, 32702, 0, 1, 0, 0, 0, -6000, 131, 0, 0, 0, 0, 0, 0, -28656, 245, 0, 0, 27088, 8970, 32767, 0, 0, 0, 0, 0, 8160, 26893, 32702, 0, 1, 0 <repeats 11 times>, 12536, 26770, 32702, 0, 1, 0, 0, 0, 0, 0, 0, 0, 4, 0, 0, 0, 0, 0, 0, 0, 3152, 21150, 0, 0, -30955, 26893, 32702, 0} yyss = 0x7fff230a6780 yyssp = 0x7fff230a6790 </code>

Are the DNS stats counters initialised at this point?

More information can be found at the following URL: https://sip-router.org/tracker/index.php?do=details&task_id=375

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