void server_forward_console(
Server *s,
int priority,
const char *identifier,
const char *message,
const struct ucred *ucred) {
struct iovec iovec[5];
struct timespec ts;
char tbuf[sizeof("[] ")-1 + DECIMAL_STR_MAX(ts.tv_sec) + DECIMAL_STR_MAX(ts.tv_nsec)-3 + 1];
char header_pid[sizeof("[]: ")-1 + DECIMAL_STR_MAX(pid_t)];
int n = 0, fd;
_cleanup_free_ char *ident_buf = NULL;
const char *tty;
assert(s);
assert(message);
if (LOG_PRI(priority) > s->max_level_console)
return;
/* First: timestamp */
if (prefix_timestamp()) {
assert_se(clock_gettime(CLOCK_MONOTONIC, &ts) == 0);
xsprintf(tbuf, "[%5"PRI_TIME".%06ld] ",
ts.tv_sec,
ts.tv_nsec / 1000);
IOVEC_SET_STRING(iovec[n++], tbuf);
}
/* Second: identifier and PID */
if (ucred) {
if (!identifier) {
get_process_comm(ucred->pid, &ident_buf);
identifier = ident_buf;
}
xsprintf(header_pid, "["PID_FMT"]: ", ucred->pid);
if (identifier)
IOVEC_SET_STRING(iovec[n++], identifier);
IOVEC_SET_STRING(iovec[n++], header_pid);
} else if (identifier) {
IOVEC_SET_STRING(iovec[n++], identifier);
IOVEC_SET_STRING(iovec[n++], ": ");
}
/* Fourth: message */
IOVEC_SET_STRING(iovec[n++], message);
IOVEC_SET_STRING(iovec[n++], "\n");
tty = s->tty_path ? s->tty_path : "/dev/console";
fd = open_terminal(tty, O_WRONLY|O_NOCTTY|O_CLOEXEC);
if (fd < 0) {
log_debug_errno(errno, "Failed to open %s for logging: %m", tty);
return;
}
if (writev(fd, iovec, n) < 0)
log_debug_errno(errno, "Failed to write to %s for logging: %m", tty);
safe_close(fd);
}
void server_forward_console(
Server *s,
int priority,
const char *identifier,
const char *message,
const struct ucred *ucred) {
struct iovec iovec[5];
struct timespec ts;
char tbuf[sizeof("[] ")-1 + DECIMAL_STR_MAX(ts.tv_sec) + DECIMAL_STR_MAX(ts.tv_nsec)-3 + 1];
char header_pid[sizeof("[]: ")-1 + DECIMAL_STR_MAX(pid_t)];
int n = 0, fd;
_cleanup_free_ char *ident_buf = NULL;
const char *tty;
assert(s);
assert(message);
if (LOG_PRI(priority) > s->max_level_console)
return;
/* First: timestamp */
if (prefix_timestamp()) {
assert_se(clock_gettime(CLOCK_MONOTONIC, &ts) == 0);
xsprintf(tbuf, "[%5"PRI_TIME".%06ld] ",
ts.tv_sec,
ts.tv_nsec / 1000);
IOVEC_SET_STRING(iovec[n++], tbuf);
}
/* Second: identifier and PID */
if (ucred) {
if (!identifier) {
get_process_comm(ucred->pid, &ident_buf);
identifier = ident_buf;
}
xsprintf(header_pid, "["PID_FMT"]: ", ucred->pid);
if (identifier)
IOVEC_SET_STRING(iovec[n++], identifier);
IOVEC_SET_STRING(iovec[n++], header_pid);
} else if (identifier) {
IOVEC_SET_STRING(iovec[n++], identifier);
IOVEC_SET_STRING(iovec[n++], ": ");
}
/* Fourth: message */
IOVEC_SET_STRING(iovec[n++], message);
IOVEC_SET_STRING(iovec[n++], "\n");
tty = s->tty_path ? s->tty_path : "/dev/console";
/* Before you ask: yes, on purpose we open/close the console for each log line we write individually. This is a
* good strategy to avoid journald getting killed by the kernel's SAK concept (it doesn't fix this entirely,
* but minimizes the time window the kernel might end up killing journald due to SAK). It also makes things
* easier for us so that we don't have to recover from hangups and suchlike triggered on the console. */
fd = open_terminal(tty, O_WRONLY|O_NOCTTY|O_CLOEXEC);
if (fd < 0) {
log_debug_errno(fd, "Failed to open %s for logging: %m", tty);
return;
}
if (writev(fd, iovec, n) < 0)
log_debug_errno(errno, "Failed to write to %s for logging: %m", tty);
safe_close(fd);
}
void server_forward_console(
Server *s,
int priority,
const char *identifier,
const char *message,
struct ucred *ucred) {
struct iovec iovec[5];
char header_pid[16];
struct timespec ts;
char tbuf[4 + DECIMAL_STR_MAX(ts.tv_sec) + DECIMAL_STR_MAX(ts.tv_nsec)-3 + 1];
int n = 0, fd;
char *ident_buf = NULL;
const char *tty;
assert(s);
assert(message);
if (LOG_PRI(priority) > s->max_level_console)
return;
/* First: timestamp */
if (prefix_timestamp()) {
assert_se(clock_gettime(CLOCK_MONOTONIC, &ts) == 0);
snprintf(tbuf, sizeof(tbuf), "[%5llu.%06llu] ",
(unsigned long long) ts.tv_sec,
(unsigned long long) ts.tv_nsec / 1000);
IOVEC_SET_STRING(iovec[n++], tbuf);
}
/* Second: identifier and PID */
if (ucred) {
if (!identifier) {
get_process_comm(ucred->pid, &ident_buf);
identifier = ident_buf;
}
snprintf(header_pid, sizeof(header_pid), "[%lu]: ", (unsigned long) ucred->pid);
char_array_0(header_pid);
if (identifier)
IOVEC_SET_STRING(iovec[n++], identifier);
IOVEC_SET_STRING(iovec[n++], header_pid);
} else if (identifier) {
IOVEC_SET_STRING(iovec[n++], identifier);
IOVEC_SET_STRING(iovec[n++], ": ");
}
/* Fourth: message */
IOVEC_SET_STRING(iovec[n++], message);
IOVEC_SET_STRING(iovec[n++], "\n");
tty = s->tty_path ? s->tty_path : "/dev/console";
fd = open_terminal(tty, O_WRONLY|O_NOCTTY|O_CLOEXEC);
if (fd < 0) {
log_debug("Failed to open %s for logging: %s", tty, strerror(errno));
goto finish;
}
if (writev(fd, iovec, n) < 0)
log_debug("Failed to write to %s for logging: %s", tty, strerror(errno));
safe_close(fd);
finish:
free(ident_buf);
}
