Zbigniew Jędrzejewski-Szmek 6483ad89f5 systemctl: do not segfault when we cannot find template unit (#4915)
Core was generated by `systemctl cat test@.target test@.service'.
Program terminated with signal SIGSEGV, Segmentation fault.
32              movdqu  (%rdi), %xmm0
(gdb) bt
-0  strrchr () at ../sysdeps/x86_64/strrchr.S:32
-1  0x00007f57fdf837fe in __GI___basename (filename=0x0) at basename.c:24
-2  0x000055b8a77d0d91 in unit_find_paths (bus=0x55b8a9242f90, unit_name=0x55b8a92428f0 "test@.service", lp=0x7ffdc9070400, fragment_path=0x7ffdc90703e0, dropin_paths=0x7ffdc90703e8) at src/systemctl/systemctl.c:2584
-3  0x000055b8a77dbae5 in cat (argc=3, argv=0x7ffdc9070678, userdata=0x0) at src/systemctl/systemctl.c:5324
-4  0x00007f57fe55fc6b in dispatch_verb (argc=5, argv=0x7ffdc9070668, verbs=0x55b8a77f1c60 <verbs>, userdata=0x0) at src/basic/verbs.c:92
-5  0x000055b8a77e477f in systemctl_main (argc=5, argv=0x7ffdc9070668) at src/systemctl/systemctl.c:8141
-6  0x000055b8a77e5572 in main (argc=5, argv=0x7ffdc9070668) at src/systemctl/systemctl.c:8412

The right behaviour is not easy in this case. Implement some "sensible" logic.

Fixes #4912.
2016-12-20 11:09:59 +01:00
2015-07-06 17:47:38 +02:00
2016-12-20 14:39:59 +10:00
2016-02-12 19:10:01 +01:00
2015-08-31 18:12:37 +02:00
2015-06-03 00:22:53 +02:00
2014-06-04 15:41:10 -04:00
2016-10-06 11:53:58 -04:00
2016-12-14 18:30:05 +01:00

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