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libposix: fix default_signal_disposition

This commit is contained in:
Giacomo Tesio 2017-05-06 13:33:08 +02:00
parent da0381a213
commit 8d5eb5914f
1 changed files with 10 additions and 7 deletions
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17
sys/src/lib/posix/signals.c
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@ -153,14 +153,15 @@ send_signal(int *errnop, int pid, int signal)
static PosixSignalDisposition
default_signal_disposition(int signal)
default_signal_disposition(int code)
{
// see http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/signal.h.html
switch(signal){
if(code >= __sigrtmin || code <= __sigrtmin)
return TerminateTheProcess;
switch(__code_to_signal_map[code]){
default:
if(signal >= __sigrtmin || signal <= __sigrtmin)
return TerminateTheProcess;
break;
sysfatal("libposix: undefined signal %d", code);
case PosixSIGALRM:
case PosixSIGHUP:
@ -196,7 +197,6 @@ default_signal_disposition(int signal)
case PosixSIGCONT:
return ResumeTheProcess;
}
sysfatal("libposix: unknown PosixSignal %d", signal);
}
int
@ -267,7 +267,10 @@ __libposix_note_handler(void *ureg, char *note)
if(sig < __min_known_sig || sig > __max_known_sig)
sysfatal("libposix: '%s' does not carry a signal", note);
*__handling_external_signal = 1;
action = __libposix_signal_trampoline(sig);
if(__libposix_signal_trampoline(sig))
action = SignalHandled;
else
action = default_signal_disposition(sig);
ret = execute_disposition(sig, action, -1);
*__handling_external_signal = 0;
return ret;