87 lines
2.6 KiB
C
87 lines
2.6 KiB
C
/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
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/***
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This file is part of systemd.
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Copyright 2011 Lennart Poettering
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systemd is free software; you can redistribute it and/or modify it
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under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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systemd is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with systemd; If not, see <http://www.gnu.org/licenses/>.
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***/
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#include <fcntl.h>
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#include <unistd.h>
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#include <sys/socket.h>
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#include "journald-server.h"
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#include "journald-console.h"
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void server_forward_console(
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Server *s,
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int priority,
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const char *identifier,
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const char *message,
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struct ucred *ucred) {
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struct iovec iovec[4];
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char header_pid[16];
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int n = 0, fd;
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char *ident_buf = NULL;
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const char *tty;
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assert(s);
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assert(message);
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if (LOG_PRI(priority) > s->max_level_console)
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return;
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/* First: identifier and PID */
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if (ucred) {
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if (!identifier) {
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get_process_comm(ucred->pid, &ident_buf);
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identifier = ident_buf;
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}
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snprintf(header_pid, sizeof(header_pid), "[%lu]: ", (unsigned long) ucred->pid);
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char_array_0(header_pid);
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if (identifier)
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IOVEC_SET_STRING(iovec[n++], identifier);
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IOVEC_SET_STRING(iovec[n++], header_pid);
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} else if (identifier) {
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IOVEC_SET_STRING(iovec[n++], identifier);
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IOVEC_SET_STRING(iovec[n++], ": ");
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}
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/* Third: message */
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IOVEC_SET_STRING(iovec[n++], message);
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IOVEC_SET_STRING(iovec[n++], "\n");
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tty = s->tty_path ? s->tty_path : "/dev/console";
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fd = open_terminal(tty, O_WRONLY|O_NOCTTY|O_CLOEXEC);
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if (fd < 0) {
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log_debug("Failed to open %s for logging: %s", tty, strerror(errno));
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goto finish;
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}
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if (writev(fd, iovec, n) < 0)
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log_debug("Failed to write to %s for logging: %s", tty, strerror(errno));
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close_nointr_nofail(fd);
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finish:
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free(ident_buf);
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}
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