#include <unistd.h>
#include "util.h"
-#include "def.h"
#include "killall.h"
#include "set.h"
static bool ignore_proc(pid_t pid) {
_cleanup_fclose_ FILE *f = NULL;
- char c, *p;
+ char c;
+ const char *p;
size_t count;
uid_t uid;
int r;
if (errno == ECHILD)
break;
- log_error("waitpid() failed: %m");
+ log_error_errno(errno, "waitpid() failed: %m");
return;
}
if (k != SIGCHLD) {
if (k < 0 && errno != EAGAIN) {
- log_error("sigtimedwait() failed: %m");
+ log_error_errno(errno, "sigtimedwait() failed: %m");
return;
}
}
}
-static int killall(int sig, Set *pids) {
+static int killall(int sig, Set *pids, bool send_sighup) {
_cleanup_closedir_ DIR *dir = NULL;
struct dirent *d;
continue;
if (sig == SIGKILL) {
- _cleanup_free_ char *s;
+ _cleanup_free_ char *s = NULL;
get_process_comm(pid, &s);
- log_notice("Sending SIGKILL to PID %lu (%s).", (unsigned long) pid, strna(s));
+ log_notice("Sending SIGKILL to PID "PID_FMT" (%s).", pid, strna(s));
}
if (kill(pid, sig) >= 0) {
if (pids)
- set_put(pids, ULONG_TO_PTR((unsigned long) pid));
+ set_put(pids, ULONG_TO_PTR(pid));
} else if (errno != ENOENT)
- log_warning("Could not kill %d: %m", pid);
+ log_warning_errno(errno, "Could not kill %d: %m", pid);
+
+ if (send_sighup) {
+ /* Optionally, also send a SIGHUP signal, but
+ only if the process has a controlling
+ tty. This is useful to allow handling of
+ shells which ignore SIGTERM but react to
+ SIGHUP. We do not send this to processes that
+ have no controlling TTY since we don't want to
+ trigger reloads of daemon processes. Also we
+ make sure to only send this after SIGTERM so
+ that SIGTERM is always first in the queue. */
+
+
+ if (get_ctty_devnr(pid, NULL) >= 0)
+ kill(pid, SIGHUP);
+ }
}
return set_size(pids);
}
-void broadcast_signal(int sig, bool wait_for_exit) {
+void broadcast_signal(int sig, bool wait_for_exit, bool send_sighup) {
sigset_t mask, oldmask;
- Set *pids = NULL;
+ _cleanup_set_free_ Set *pids = NULL;
if (wait_for_exit)
- pids = set_new(trivial_hash_func, trivial_compare_func);
+ pids = set_new(NULL);
assert_se(sigemptyset(&mask) == 0);
assert_se(sigaddset(&mask, SIGCHLD) == 0);
assert_se(sigprocmask(SIG_BLOCK, &mask, &oldmask) == 0);
if (kill(-1, SIGSTOP) < 0 && errno != ESRCH)
- log_warning("kill(-1, SIGSTOP) failed: %m");
+ log_warning_errno(errno, "kill(-1, SIGSTOP) failed: %m");
- killall(sig, pids);
+ killall(sig, pids, send_sighup);
if (kill(-1, SIGCONT) < 0 && errno != ESRCH)
- log_warning("kill(-1, SIGCONT) failed: %m");
+ log_warning_errno(errno, "kill(-1, SIGCONT) failed: %m");
if (wait_for_exit)
wait_for_children(pids, &mask);
assert_se(sigprocmask(SIG_SETMASK, &oldmask, NULL) == 0);
-
- set_free(pids);
}