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Fix SEGV of kill -l 0 

* kill.cc (strsigno): Don't call sys_sigabbrev for signal 0.
	(listsig): Don't call strsigno for signal 0.

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
This commit is contained in:
Michael Kwasigroch 2015-11-26 22:30:43 +01:00 committed by Corinna Vinschen
parent 2f4fef955c
commit 9471b0b36d
2 changed files with 8 additions and 3 deletions
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5
winsup/utils/ChangeLog
View File

@ -1,3 +1,8 @@
2015-11-26 Michael Kwasigroch <mkwasigr@web.de>
* kill.cc (strsigno): Don't call sys_sigabbrev for signal 0.
(listsig): Don't call strsigno for signal 0.
2015-11-18 Corinna Vinschen <corinna@vinschen.de> 2015-11-18 Corinna Vinschen <corinna@vinschen.de>
* setfacl.c (action_t): Rename DeleteAll to DeleteExt. Add * setfacl.c (action_t): Rename DeleteAll to DeleteExt. Add

6
winsup/utils/kill.cc
View File

@ -1,7 +1,7 @@
/* kill.cc /* kill.cc
Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007, Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007,
2009, 2011 Red Hat, Inc. 2009, 2011, 2015 Red Hat, Inc.
This file is part of Cygwin. This file is part of Cygwin.
@ -70,7 +70,7 @@ print_version ()
static const char * static const char *
strsigno (int signo) strsigno (int signo)
{ {
if (signo >= 0 && signo < NSIG) if (signo > 0 && signo < NSIG)
return sys_sigabbrev[signo]; return sys_sigabbrev[signo];
static char buf[sizeof ("Unknown signal") + 32]; static char buf[sizeof ("Unknown signal") + 32];
sprintf (buf, "Unknown signal %d", signo); sprintf (buf, "Unknown signal %d", signo);
@ -121,7 +121,7 @@ listsig (const char *in_sig)
{ {
sig = getsig (in_sig); sig = getsig (in_sig);
test_for_unknown_sig (sig, in_sig); test_for_unknown_sig (sig, in_sig);
if (atoi (in_sig) == sig) if (sig && atoi (in_sig) == sig)
puts (strsigno (sig) + 3); puts (strsigno (sig) + 3);
else else
printf ("%d\n", sig); printf ("%d\n", sig);