[stunnel-users] Fix unexpected stunnel-4.10 exits on FreeBSD

[Michal Trojnara]

Here is the whole backtrace:

Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 16384 (LWP 1662)]
0x40020bae in _pthread_cleanup_push_defer () from /lib/libpthread.so.0
(gdb) bt
#0  0x40020bae in _pthread_cleanup_push_defer () from 
/lib/libpthread.so.0
#1  0x401f702c in vfprintf () from /lib/libc.so.6
#2  0x401f2ec0 in vfprintf () from /lib/libc.so.6
#3  0x401fb94f in fprintf () from /lib/libc.so.6
#4  0x0804df97 in s_log (level=134571040,
     format=0x402d5440 
"\207(??\207T-@\207T-@\207T-@\207T-@\207T-@\207T-@\207T-@\210T-@") at 
log.c:152
#5  0x0804b514 in client (arg=0x807d960) at client.c:106
#6  0x401f0674 in makecontext () from /lib/libc.so.6
#7  0x0807d960 in ?? ()
#8  0x0805eca0 in next_id ()
#9  0x00000002 in ?? ()
#10 0x00000000 in ?? ()
#11 0x0805eca0 in next_id ()
#12 0x08085ed0 in ?? ()
#13 0x00000000 in ?? ()
#14 0x00010000 in ?? ()
#15 0x00000000 in ?? ()
#16 0x00000000 in ?? ()
#17 0x00000000 in ?? ()
#18 0x00000000 in ?? ()
#19 0xbffff99c in ?? ()
#20 0x00000009 in ?? ()
#21 0xbffff948 in ?? ()
#22 0x08095ec4 in ?? ()
#23 0x00000001 in ?? ()
#24 0x00000000 in ?? ()
#25 0x00000000 in ?? ()
#26 0x00000000 in ?? ()
#27 0x00000000 in ?? ()
#28 0x00000000 in ?? ()
#29 0x0804b4e0 in alloc_client_session () at client.c:92
#30 0x08054412 in create_client (ls=613270282, s=59548, arg=0x402d5440,
     cli=0x402d5440 <_IO_2_1_stderr_>) at sthreads.c:133
Previous frame inner to this frame (corrupt stack?)

Interesting, isn't it?

Best regards,
   Mike