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-rw-r--r--src/rc-logger.c258
1 files changed, 0 insertions, 258 deletions
diff --git a/src/rc-logger.c b/src/rc-logger.c
deleted file mode 100644
index 675a4d23..00000000
--- a/src/rc-logger.c
+++ /dev/null
@@ -1,258 +0,0 @@
-/*
- rc-logger.c
- Spawns a logging daemon to capture stdout and stderr so we can log
- them to a buffer and/or files.
- */
-
-/*
- * Copyright 2007 Roy Marples
- * All rights reserved
-
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#include <sys/types.h>
-#include <sys/wait.h>
-#include <ctype.h>
-#include <fcntl.h>
-#include <signal.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <termios.h>
-#include <time.h>
-#include <unistd.h>
-
-#ifdef __linux__
-# include <pty.h>
-#else
-# include <libutil.h>
-#endif
-
-#include "einfo.h"
-#include "rc-logger.h"
-#include "rc-misc.h"
-#include "rc.h"
-
-#define LOGFILE RC_SVCDIR "/rc.log"
-#define PERMLOG "/var/log/rc.log"
-#define MOVELOG "mv " LOGFILE " " PERMLOG ".$$.tmp && cat " PERMLOG \
- ".$$.tmp >>" PERMLOG " 2>/dev/null && rm -f " PERMLOG ".$$.tmp"
-
-static int signal_pipe[2] = { -1, -1 };
-static int fd_stdout = -1;
-static int fd_stderr = -1;
-static const char *runlevel = NULL;
-static bool in_escape = false;
-static bool in_term = false;
-
-static char *logbuf = NULL;
-static size_t logbuf_size = 0;
-static size_t logbuf_len = 0;
-
-pid_t rc_logger_pid = -1;
-int rc_logger_tty = -1;
-bool rc_in_logger = false;
-
-static void write_log (int logfd, const char *buffer, size_t bytes)
-{
- const char *p = buffer;
-
- while ((size_t) (p - buffer) < bytes) {
- switch (*p) {
- case '\r':
- goto cont;
- case '\033':
- in_escape = true;
- in_term = false;
- goto cont;
- case '\n':
- in_escape = in_term = false;
- break;
- case '[':
- if (in_escape)
- in_term = true;
- break;
- }
-
- if (! in_escape) {
- write (logfd, p++, 1);
- continue;
- }
-
- if (! in_term || isalpha (*p))
- in_escape = in_term = false;
-cont:
- p++;
- }
-}
-
-static void write_time (FILE *f, const char *s)
-{
- time_t now = time (NULL);
- struct tm *tm = localtime (&now);
-
- fprintf (f, "\nrc %s logging %s at %s\n", runlevel, s, asctime (tm));
- fflush (f);
-}
-
-void rc_logger_close ()
-{
- if (signal_pipe[1] > -1) {
- int sig = SIGTERM;
- write (signal_pipe[1], &sig, sizeof (sig));
- close (signal_pipe[1]);
- signal_pipe[1] = -1;
- }
-
- if (rc_logger_pid > 0)
- waitpid (rc_logger_pid, 0, 0);
-
- if (fd_stdout > -1)
- dup2 (fd_stdout, STDOUT_FILENO);
- if (fd_stderr > -1)
- dup2 (fd_stderr, STDERR_FILENO);
-}
-
-void rc_logger_open (const char *level)
-{
- int slave_tty;
- struct termios tt;
- struct winsize ws;
- char *buffer;
- fd_set rset;
- int s = 0;
- size_t bytes;
- int selfd;
- int i;
- FILE *log = NULL;
-
- if (! isatty (STDOUT_FILENO))
- return;
-
- if (! rc_conf_yesno ("rc_logger"))
- return;
-
- if (pipe (signal_pipe) == -1)
- eerrorx ("pipe: %s", strerror (errno));
- for (i = 0; i < 2; i++)
- if ((s = fcntl (signal_pipe[i], F_GETFD, 0) == -1 ||
- fcntl (signal_pipe[i], F_SETFD, s | FD_CLOEXEC) == -1))
- eerrorx ("fcntl: %s", strerror (errno));
-
- tcgetattr (STDOUT_FILENO, &tt);
- ioctl (STDOUT_FILENO, TIOCGWINSZ, &ws);
-
- /* /dev/pts may not be available yet */
- if (openpty (&rc_logger_tty, &slave_tty, NULL, &tt, &ws))
- return;
-
- rc_logger_pid = fork ();
- switch (rc_logger_pid) {
- case -1:
- eerror ("forkpty: %s", strerror (errno));
- break;
- case 0:
- rc_in_logger = true;
- close (signal_pipe[1]);
- signal_pipe[1] = -1;
-
- runlevel = level;
- if ((log = fopen (LOGFILE, "a")))
- write_time (log, "started");
- else {
- free (logbuf);
- logbuf_size = RC_LINEBUFFER * 10;
- logbuf = xmalloc (sizeof (char) * logbuf_size);
- logbuf_len = 0;
- }
-
- buffer = xmalloc (sizeof (char) * RC_LINEBUFFER);
- selfd = rc_logger_tty > signal_pipe[0] ? rc_logger_tty : signal_pipe[0];
- while (1) {
- FD_ZERO (&rset);
- FD_SET (rc_logger_tty, &rset);
- FD_SET (signal_pipe[0], &rset);
-
- if ((s = select (selfd + 1, &rset, NULL, NULL, NULL)) == -1) {
- eerror ("select: %s", strerror (errno));
- break;
- }
-
- if (s > 0) {
- if (FD_ISSET (rc_logger_tty, &rset)) {
- memset (buffer, 0, RC_LINEBUFFER);
- bytes = read (rc_logger_tty, buffer, RC_LINEBUFFER);
- write (STDOUT_FILENO, buffer, bytes);
-
- if (log)
- write_log (fileno (log), buffer, bytes);
- else {
- if (logbuf_size - logbuf_len < bytes) {
- logbuf_size += RC_LINEBUFFER * 10;
- logbuf = xrealloc (logbuf, sizeof (char ) *
- logbuf_size);
- }
-
- memcpy (logbuf + logbuf_len, buffer, bytes);
- logbuf_len += bytes;
- }
- }
-
- /* Only SIGTERMS signals come down this pipe */
- if (FD_ISSET (signal_pipe[0], &rset))
- break;
- }
- }
- free (buffer);
- if (logbuf) {
- if ((log = fopen (LOGFILE, "a"))) {
- write_time (log, "started");
- write_log (fileno (log), logbuf, logbuf_len);
- }
- free (logbuf);
- }
- if (log) {
- write_time (log, "stopped");
- fclose (log);
- }
-
- /* Try and cat our new logfile to a more permament location and then
- * punt it */
- system (MOVELOG);
-
- exit (0);
- default:
- setpgid (rc_logger_pid, 0);
- fd_stdout = dup (STDOUT_FILENO);
- fd_stderr = dup (STDERR_FILENO);
- dup2 (slave_tty, STDOUT_FILENO);
- dup2 (slave_tty, STDERR_FILENO);
- if (slave_tty != STDIN_FILENO &&
- slave_tty != STDOUT_FILENO &&
- slave_tty != STDERR_FILENO)
- close (slave_tty);
- close (signal_pipe[0]);
- signal_pipe[0] = -1;
- break;
- }
-}
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