int
sigsend(idtype_t idtype, id_t id, int sig)
{
procset_t set;
setprocset(&set, POP_AND, idtype, id, P_ALL, P_MYID);
return (sigsendset(&set, sig));
}
static int
sigqkill(pid_t pid, sigsend_t *sigsend)
{
proc_t *p;
int error;
if ((uint_t)sigsend->sig >= NSIG)
return (EINVAL);
if (pid == -1) {
procset_t set;
setprocset(&set, POP_AND, P_ALL, P_MYID, P_ALL, P_MYID);
error = sigsendset(&set, sigsend);
} else if (pid > 0) {
mutex_enter(&pidlock);
if ((p = prfind(pid)) == NULL || p->p_stat == SIDL)
error = ESRCH;
else {
error = sigsendproc(p, sigsend);
if (error == 0 && sigsend->perm == 0)
error = EPERM;
}
mutex_exit(&pidlock);
} else {
int nfound = 0;
pid_t pgid;
if (pid == 0)
pgid = ttoproc(curthread)->p_pgrp;
else
pgid = -pid;
error = 0;
mutex_enter(&pidlock);
for (p = pgfind(pgid); p && !error; p = p->p_pglink) {
if (p->p_stat != SIDL) {
nfound++;
error = sigsendproc(p, sigsend);
}
}
mutex_exit(&pidlock);
if (nfound == 0)
error = ESRCH;
else if (error == 0 && sigsend->perm == 0)
error = EPERM;
}
return (error);
}
static int
set_proc_info(pid_t pid, const char *path, core_content_t content)
{
proc_t *p;
counter_t counter;
int error = 0;
counter.cc_count = 0;
/*
* Only one of the core file path or content can be set at a time.
*/
if (path != NULL) {
counter.cc_path = corectl_path_alloc(path);
counter.cc_content = NULL;
} else {
counter.cc_path = NULL;
counter.cc_content = corectl_content_alloc(content);
}
if (pid == -1) {
procset_t set;
setprocset(&set, POP_AND, P_ALL, P_MYID, P_ALL, P_MYID);
error = dotoprocs(&set, set_one_proc_info, (char *)&counter);
if (error == 0 && counter.cc_count == 0)
error = EPERM;
} else if (pid > 0) {
mutex_enter(&pidlock);
if ((p = prfind(pid)) == NULL || p->p_stat == SIDL) {
error = ESRCH;
} else {
(void) set_one_proc_info(p, &counter);
if (counter.cc_count == 0)
error = EPERM;
}
mutex_exit(&pidlock);
} else {
int nfound = 0;
pid_t pgid;
if (pid == 0)
pgid = curproc->p_pgrp;
else
pgid = -pid;
mutex_enter(&pidlock);
for (p = pgfind(pgid); p != NULL; p = p->p_pglink) {
if (p->p_stat != SIDL) {
nfound++;
(void) set_one_proc_info(p, &counter);
}
}
mutex_exit(&pidlock);
if (nfound == 0)
error = ESRCH;
else if (counter.cc_count == 0)
error = EPERM;
}
if (path != NULL)
corectl_path_rele(counter.cc_path);
else
corectl_content_rele(counter.cc_content);
if (error)
return (set_errno(error));
return (0);
}
