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Fix sigvec(). When the sigset_t changes came in, it was altered

Browse source 
to call osigaction().  But that's wrong because it causes the
handler to receive a struct osigcontext instead of the expected
struct sigcontext.  Use sigaction() instead, copying the compatible
portion of the signal mask.

Reviewed by:	marcel
This commit is contained in:
John Polstra 1999-10-09 00:25:29 +00:00
parent ee774a4d62
commit 2bc2b29270
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=52040
1 changed files with 17 additions and 6 deletions
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23
lib/libc/compat-43/sigcompat.c
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@ -47,14 +47,25 @@ sigvec(signo, sv, osv)
int signo;
struct sigvec *sv, *osv;
{
struct sigaction sa, osa;
struct sigaction *sap, *osap;
int ret;
if (sv)
sv->sv_flags ^= SV_INTERRUPT; /* !SA_INTERRUPT */
ret = osigaction(signo, (struct osigaction *)sv,
(struct osigaction *)osv);
if (ret == 0 && osv)
osv->sv_flags ^= SV_INTERRUPT; /* !SA_INTERRUPT */
if (sv != NULL) {
sa.sa_handler = sv->sv_handler;
sa.sa_flags = sv->sv_flags ^ SV_INTERRUPT;
sigemptyset(&sa.sa_mask);
sa.sa_mask.__bits[0] = sv->sv_mask;
sap = &sa;
} else
sap = NULL;
osap = osv != NULL ? &osa : NULL;
ret = sigaction(signo, sap, osap);
if (ret == 0 && osv != NULL) {
osv->sv_handler = osa.sa_handler;
osv->sv_flags = osa.sa_flags ^ SV_INTERRUPT;
osv->sv_mask = osa.sa_mask.__bits[0];
}
return (ret);
}