I started tested the PPP code and run into a simple crash when not providing username and password. This should be possible. Program terminated with signal 11, Segmentation fault. #0 0x0000003457e7f2f2 in __strlen_sse2 () from /lib64/libc.so.6 (gdb) bt #0 0x0000003457e7f2f2 in __strlen_sse2 () from /lib64/libc.so.6 #1 0x000000000040ca9b in chap_process_challenge (priv=0x15a6bf0, new_packet=0x15a5164 "\001\001") at gatchat/ppp_auth.c:86 #2 chap_process_packet (priv=0x15a6bf0, new_packet=0x15a5164 "\001\001") at gatchat/ppp_auth.c:143 #3 0x000000000040a66f in ppp_recv (channel=<value optimized out>, cond=<value optimized out>, data=0x15a6d50) at gatchat/ppp.c:205 #4 ppp_feed (channel=<value optimized out>, cond=<value optimized out>, data=0x15a6d50) at gatchat/ppp.c:286 #5 ppp_cb (channel=<value optimized out>, cond=<value optimized out>, data=0x15a6d50) at gatchat/ppp.c:340 #6 0x0000003598a3923e in g_main_context_dispatch () from /lib64/libglib-2.0.so.0 #7 0x0000003598a3cc28 in ?? () from /lib64/libglib-2.0.so.0 #8 0x0000003598a3d075 in g_main_loop_run () from /lib64/libglib-2.0.so.0 #9 0x0000000000403918 in main (argc=1, argv=0x7fff7b97eb28) at gatchat/gsmdial.c:624

> > I started tested the PPP code and run into a simple crash when not > > providing username and password. This should be possible. > > > > Program terminated with signal 11, Segmentation fault. > > #0 0x0000003457e7f2f2 in __strlen_sse2 () from /lib64/libc.so.6 > > (gdb) bt > > #0 0x0000003457e7f2f2 in __strlen_sse2 () from /lib64/libc.so.6 > > #1 0x000000000040ca9b in chap_process_challenge (priv=0x15a6bf0, new_packet=0x15a5164 "\001\001") > > at gatchat/ppp_auth.c:86 > > #2 chap_process_packet (priv=0x15a6bf0, new_packet=0x15a5164 "\001\001") at gatchat/ppp_auth.c:143 > > #3 0x000000000040a66f in ppp_recv (channel=<value optimized out>, cond=<value optimized out>, data=0x15a6d50) > > at gatchat/ppp.c:205 > > #4 ppp_feed (channel=<value optimized out>, cond=<value optimized out>, data=0x15a6d50) at gatchat/ppp.c:286 > > #5 ppp_cb (channel=<value optimized out>, cond=<value optimized out>, data=0x15a6d50) at gatchat/ppp.c:340 > > #6 0x0000003598a3923e in g_main_context_dispatch () from /lib64/libglib-2.0.so.0 > > #7 0x0000003598a3cc28 in ?? () from /lib64/libglib-2.0.so.0 > > #8 0x0000003598a3d075 in g_main_loop_run () from /lib64/libglib-2.0.so.0 > > #9 0x0000000000403918 in main (argc=1, argv=0x7fff7b97eb28) at gatchat/gsmdial.c:624 > > your patches haven't fixed this yet. > > Core was generated by `./gatchat/gsmdial -n /dev/ttyUSB0 -c 1 -a internet.com -l -P'. > Program terminated with signal 11, Segmentation fault. > #0 __strlen_sse2 () at ../sysdeps/x86_64/strlen.S:31 > 31 pcmpeqb (%rdi), %xmm2 > (gdb) bt > #0 __strlen_sse2 () at ../sysdeps/x86_64/strlen.S:31 > #1 0x000000000040d13b in chap_process_challenge (priv=0x211aba0, new_packet=0x2119b7c "\001\001") > at gatchat/ppp_auth.c:86 > #2 chap_process_packet (priv=0x211aba0, new_packet=0x2119b7c "\001\001") at gatchat/ppp_auth.c:143 > #3 0x000000000040a94e in ppp_recv (channel=<value optimized out>, cond=<value optimized out>, data=0x211bab0) > at gatchat/ppp.c:210 > #4 ppp_feed (channel=<value optimized out>, cond=<value optimized out>, data=0x211bab0) at gatchat/ppp.c:295 > #5 ppp_cb (channel=<value optimized out>, cond=<value optimized out>, data=0x211bab0) at gatchat/ppp.c:347 > #6 0x0000003598a3923e in g_main_dispatch (context=0x2118160) at gmain.c:1960 > #7 IA__g_main_context_dispatch (context=0x2118160) at gmain.c:2513 > #8 0x0000003598a3cc28 in g_main_context_iterate (context=0x2118160, block=<value optimized out>, > dispatch=<value optimized out>, self=<value optimized out>) at gmain.c:2591 > #9 0x0000003598a3d075 in IA__g_main_loop_run (loop=0x21183b0) at gmain.c:2799 > #10 0x0000000000403a25 in main (argc=1, argv=0x7fffa4947bf8) at gatchat/gsmdial.c:679 I notice that you finally applied my patch to allow the empty secrets. Are you still having a problem after applying that patch?