[sr-dev] sr crash at start when ip address does not exist

[Juha Heinanen]

today when io tried to start a couple of days old sr, it crashed at
start like this:

#0  cfg_update_local (no_cbs=0) at cfg/cfg_struct.h:257
257			cfg_child_cb = cfg_child_cb->next;
(gdb) where
#0  cfg_update_local (no_cbs=0) at cfg/cfg_struct.h:257
#1  0x08086b2f in cleanup (show_status=0) at main.c:519
#2  0x080870d1 in shutdown_children (sig=<value optimized out>, show_status=0)
    at main.c:648
#3  0x0808b04b in main (argc=Cannot access memory at address 0x0
) at main.c:2245

the reason may be that the address that sr is supposed to be listening
at, does not exist, but no matter what, sr must not crash:

Oct 12 11:47:56 localhost kernel: [ 4371.305724] sip-proxy[7470]: segfault at 1c ip 08085c34 sp bfa62af0 error 4 in sip-proxy[8048000+164000]
Oct 12 11:47:56 localhost /usr/sbin/sip-proxy[7470]: INFO: <core> [udp_server.c:217]: INFO: udp_init: SO_RCVBUF is finally 262142
Oct 12 11:47:56 localhost /usr/sbin/sip-proxy[7470]: ERROR: <core> [udp_server.c:388]: ERROR: udp_init: bind(6, 0x8219380, 16) on 192.98.101.10: Cannot assign requested address

-- juha