journald: split console transport stuff into its own file

[elogind.git] / src / journal / journald-console.c

diff --git a/src/journal/journald-console.c b/src/journal/journald-console.c
new file mode 100644 (file)
index 0000000..6cd2397
--- /dev/null
+++ b/src/journal/journald-console.c
@@ -0,0 +1,85 @@
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+/***
+  This file is part of systemd.
+
+  Copyright 2011 Lennart Poettering
+
+  systemd is free software; you can redistribute it and/or modify it
+  under the terms of the GNU Lesser General Public License as published by
+  the Free Software Foundation; either version 2.1 of the License, or
+  (at your option) any later version.
+
+  systemd is distributed in the hope that it will be useful, but
+  WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+  Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public License
+  along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include <fcntl.h>
+#include <unistd.h>
+
+#include "journald.h"
+#include "journald-console.h"
+
+void server_forward_console(
+                Server *s,
+                int priority,
+                const char *identifier,
+                const char *message,
+                struct ucred *ucred) {
+
+        struct iovec iovec[4];
+        char header_pid[16];
+        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: 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++], ": ");
+        }
+
+        /* Third: 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));
+
+        close_nointr_nofail(fd);
+
+finish:
+        free(ident_buf);
+}