(gdb) bt
#0  0x00002b2ae019a3e6 in tcsetattr () from /lib/libc.so.6
#1  0x00000000004e3e92 in tty_cookedmode (el=0x68ced0) at tty.c:970
#2  0x00000000004dbf7a in el_gets (el=0x68ced0, nread=0x7fffcb78b99c) at read.c:548
#3  0x000000000042d80c in main (argc=2, argv=0x7fffcb78bc68) at asterisk.c:3042
#4  0x00002b2ae0100374 in __libc_start_main () from /lib/libc.so.6
#5  0x0000000000416619 in ?? ()
#6  0x00007fffcb78bc58 in ?? ()
#7  0x0000000000000000 in ?? ()