void
proc_shutdown(struct privsep_proc *p)
{
struct privsep *ps = p->p_ps;
if (p->p_id == PROC_CONTROL && ps)
control_cleanup(&ps->ps_csock);
if (p->p_shutdown != NULL)
(*p->p_shutdown)();
proc_close(ps);
log_info("%s exiting, pid %d", p->p_title, getpid());
exit(0);
}
static int
proc_vscanf (pctx_t ctx, const char *path, const char *fmt, va_list ap)
{
int n = -1;
assert (ctx->pctx_magic == PCTX_MAGIC);
assert (path || ctx->pctx_fp);
assert (!ctx->pctx_dp);
if (path) {
if (proc_open (ctx, path) < 0)
return -1;
}
n = vfscanf (ctx->pctx_fp, fmt, ap);
if (path)
proc_close (ctx);
return n;
}
void
proc_kill(struct privsep *ps)
{
pid_t pid;
u_int i;
if (privsep_process != PROC_PARENT)
return;
for (i = 0; i < PROC_MAX; i++) {
if (ps->ps_pid[i] == 0)
continue;
killpg(ps->ps_pid[i], SIGTERM);
}
do {
pid = waitpid(WAIT_ANY, NULL, 0);
} while (pid != -1 || (pid == -1 && errno == EINTR));
proc_close(ps);
}
/* Returns -1 with errno == 0 for EOF
* Trailing newlines are trimmed in the result.
*/
int
proc_gets (pctx_t ctx, const char *path, char *buf, int len)
{
int i, ret = 0;
assert (ctx->pctx_magic == PCTX_MAGIC);
assert (path || ctx->pctx_fp);
assert (!ctx->pctx_dp);
if (path) {
if (proc_open (ctx, path) < 0)
return -1;
}
errno = 0;
if (!fgets (buf, len, ctx->pctx_fp))
ret = -1;
if (path)
proc_close (ctx);
if (ret == 0 && (i = strlen (buf)) > 0 && buf[i - 1] == '\n')
buf[i - 1] = '\0';
return ret;
}
void
proc_kill(struct privsep *ps)
{
char *cause;
pid_t pid;
int len, status;
if (privsep_process != PROC_PARENT)
return;
proc_close(ps);
do {
pid = waitpid(WAIT_ANY, &status, 0);
if (pid <= 0)
continue;
if (WIFSIGNALED(status)) {
len = asprintf(&cause, "terminated; signal %d",
WTERMSIG(status));
} else if (WIFEXITED(status)) {
if (WEXITSTATUS(status) != 0)
len = asprintf(&cause, "exited abnormally");
else
len = 0;
} else
len = -1;
if (len == 0) {
/* child exited OK, don't print a warning message */
} else if (len != -1) {
log_warnx("lost child: pid %u %s", pid, cause);
free(cause);
} else
log_warnx("lost child: pid %u", pid);
} while (pid != -1 || (pid == -1 && errno == EINTR));
}
