aboutsummaryrefslogtreecommitdiff
path: root/sysklogd/syslogd.c
diff options
context:
space:
mode:
Diffstat (limited to 'sysklogd/syslogd.c')
-rw-r--r--sysklogd/syslogd.c149
1 files changed, 72 insertions, 77 deletions
diff --git a/sysklogd/syslogd.c b/sysklogd/syslogd.c
index 228d0a17a..4cfb458ed 100644
--- a/sysklogd/syslogd.c
+++ b/sysklogd/syslogd.c
@@ -5,6 +5,8 @@
* Copyright (C) 1999,2000 by Lineo, inc.
* Written by Erik Andersen <andersen@lineo.com>, <andersee@debian.org>
*
+ * Copyright (C) 2000 by Karl M. Hegbloom <karlheg@debian.org>
+ *
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
@@ -74,39 +76,38 @@ static const char syslogd_usage[] =
/* Note: There is also a function called "message()" in init.c */
/* Print a message to the log file. */
-static void message(char *fmt, ...)
- __attribute__ ((format (printf, 1, 2)));
-static void message(char *fmt, ...)
+static void message (char *fmt, ...) __attribute__ ((format (printf, 1, 2)));
+static void message (char *fmt, ...)
{
int fd;
va_list arguments;
- if ( (fd = device_open(logFilePath,
- O_WRONLY | O_CREAT | O_NOCTTY | O_APPEND |
- O_NONBLOCK)) >= 0) {
- va_start(arguments, fmt);
- vdprintf(fd, fmt, arguments);
- va_end(arguments);
- close(fd);
+ if ((fd = device_open (logFilePath,
+ O_WRONLY | O_CREAT | O_NOCTTY | O_APPEND |
+ O_NONBLOCK)) >= 0) {
+ va_start (arguments, fmt);
+ vdprintf (fd, fmt, arguments);
+ va_end (arguments);
+ close (fd);
} else {
/* Always send console messages to /dev/console so people will see them. */
- if ( (fd = device_open(_PATH_CONSOLE,
- O_WRONLY | O_NOCTTY | O_NONBLOCK)) >= 0) {
- va_start(arguments, fmt);
- vdprintf(fd, fmt, arguments);
- va_end(arguments);
- close(fd);
+ if ((fd = device_open (_PATH_CONSOLE,
+ O_WRONLY | O_NOCTTY | O_NONBLOCK)) >= 0) {
+ va_start (arguments, fmt);
+ vdprintf (fd, fmt, arguments);
+ va_end (arguments);
+ close (fd);
} else {
- fprintf(stderr, "Bummer, can't print: ");
- va_start(arguments, fmt);
- vfprintf(stderr, fmt, arguments);
- fflush(stderr);
- va_end(arguments);
+ fprintf (stderr, "Bummer, can't print: ");
+ va_start (arguments, fmt);
+ vfprintf (stderr, fmt, arguments);
+ fflush (stderr);
+ va_end (arguments);
}
}
}
-static void logMessage(int pri, char *msg)
+static void logMessage (int pri, char *msg)
{
time_t now;
char *timestamp;
@@ -161,11 +162,13 @@ static void doSyslogd (void)
{
struct sockaddr_un sunx;
size_t addrLength;
+
int sock_fd;
- fd_set readfds;
+ fd_set fds;
+
char lfile[PATH_MAX];
- /* Set up sig handlers */
+ /* Set up signal handlers. */
signal (SIGINT, quit_signal);
signal (SIGTERM, quit_signal);
signal (SIGQUIT, quit_signal);
@@ -173,86 +176,81 @@ static void doSyslogd (void)
signal (SIGALRM, domark);
alarm (MarkInterval);
- /* create the syslog file so realpath() can work */
- close(open(_PATH_LOG, O_RDWR | O_CREAT, 0644));
- if (realpath(_PATH_LOG, lfile) == NULL) {
- fatalError("Could not resolv path to " _PATH_LOG);
- }
+ /* Create the syslog file so realpath() can work. */
+ close (open (_PATH_LOG, O_RDWR | O_CREAT, 0644));
+ if (realpath (_PATH_LOG, lfile) == NULL)
+ fatalError ("Could not resolv path to " _PATH_LOG ": %s", strerror (errno));
unlink (lfile);
- memset (&sunx, 0, sizeof(sunx));
-
+ memset (&sunx, 0, sizeof (sunx));
sunx.sun_family = AF_UNIX;
- strncpy (sunx.sun_path, lfile, sizeof(sunx.sun_path));
- if ((sock_fd = socket(AF_UNIX, SOCK_STREAM, 0)) < 0) {
- fatalError ("Couldn't obtain descriptor for socket " _PATH_LOG);
- }
+ strncpy (sunx.sun_path, lfile, sizeof (sunx.sun_path));
+ if ((sock_fd = socket (AF_UNIX, SOCK_STREAM, 0)) < 0)
+ fatalError ("Couldn't obtain descriptor for socket " _PATH_LOG ": %s", strerror (errno));
addrLength = sizeof (sunx.sun_family) + strlen (sunx.sun_path);
- if ((bind (sock_fd, (struct sockaddr *) &sunx, addrLength)) ||
- (listen (sock_fd, 5))) {
- fatalError ("Could not connect to socket " _PATH_LOG);
- }
+ if ((bind (sock_fd, (struct sockaddr *) &sunx, addrLength)) || (listen (sock_fd, 5)))
+ fatalError ("Could not connect to socket " _PATH_LOG ": %s", strerror (errno));
- if (chmod (lfile, 0666) < 0) {
- fatalError ("Could not set permission on " _PATH_LOG);
- }
+ if (chmod (lfile, 0666) < 0)
+ fatalError ("Could not set permission on " _PATH_LOG ": %s", strerror (errno));
- FD_ZERO (&readfds);
- FD_SET (sock_fd, &readfds);
+ FD_ZERO (&fds);
+ FD_SET (sock_fd, &fds);
logMessage (0, "syslogd started: BusyBox v" BB_VER " (" BB_BT ")");
for (;;) {
- int n_ready;
- int fd;
+
+ fd_set readfds;
+ int n_ready;
+ int fd;
+
+ memcpy (&readfds, &fds, sizeof (fds));
if ((n_ready = select (FD_SETSIZE, &readfds, NULL, NULL, NULL)) < 0) {
if (errno == EINTR) continue; /* alarm may have happened. */
- fatalError( "select error: %s\n", strerror(errno));
+ fatalError ("select error: %s\n", strerror (errno));
}
- /* Skip stdin, stdout, stderr */
- for (fd = 3; fd < FD_SETSIZE; fd++) {
+ for (fd = 0; (n_ready > 0) && (fd < FD_SETSIZE); fd++) {
if (FD_ISSET (fd, &readfds)) {
+ --n_ready;
if (fd == sock_fd) {
int conn;
- if ((conn = accept(sock_fd, (struct sockaddr *) &sunx,
- &addrLength)) < 0) {
- fatalError( "accept error: %s\n", strerror(errno));
+ if ((conn = accept (sock_fd, (struct sockaddr *) &sunx, &addrLength)) < 0) {
+ fatalError ("accept error: %s\n", strerror (errno));
}
- FD_SET (conn, &readfds);
+ FD_SET (conn, &fds);
+ continue;
}
else {
-#define BUFSIZE 1024 + 1
- char buf;
- char *q, *p;
+# define BUFSIZE 1023
+ char buf[ BUFSIZE + 1 ];
int n_read;
- char line[BUFSIZE];
- unsigned char c;
- int pri;
-
- /* Get set to read in a line */
- memset (line, 0, sizeof(line));
- pri = (LOG_USER | LOG_NOTICE);
-
- /* Keep reading stuff till there is nothing else to read */
- while( (n_read = read (fd, &buf, 1)) > 0) {
- p = &buf;
- q = line;
- while (p && (c = *p) && q < &line[sizeof(line) - 1]) {
+
+ while ((n_read = read (fd, buf, BUFSIZE )) > 0) {
+
+ int pri = (LOG_USER | LOG_NOTICE);
+ char line[ BUFSIZE + 1 ];
+ unsigned char c;
+ char *p = buf, *q = line;
+
+ buf[ n_read - 1 ] = '\0';
+
+ while (p && (c = *p) && q < &line[ sizeof (line) - 1 ]) {
if (c == '<') {
- /* Parse the magic priority number */
+ /* Parse the magic priority number. */
pri = 0;
- while (isdigit(*(++p))) {
+ while (isdigit (*(++p))) {
pri = 10 * pri + (*p - '0');
}
if (pri & ~(LOG_FACMASK | LOG_PRIMASK))
pri = (LOG_USER | LOG_NOTICE);
} else if (c == '\n') {
*q++ = ' ';
- } else if (iscntrl(c) && (c < 0177)) {
+ } else if (iscntrl (c) && (c < 0177)) {
*q++ = '^';
*q++ = c ^ 0100;
} else {
@@ -261,13 +259,11 @@ static void doSyslogd (void)
p++;
}
*q = '\0';
-
/* Now log it */
- logMessage(pri, line);
- break;
+ logMessage (pri, line);
}
close (fd);
- FD_CLR (fd, &readfds);
+ FD_CLR (fd, &fds);
}
}
}
@@ -351,7 +347,6 @@ static void doKlogd (void)
#endif
-static void daemon_init (char **argv, char *dz, void fn (void)) __attribute__ ((noreturn));
static void daemon_init (char **argv, char *dz, void fn (void))
{
setsid();
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-03 19:50:50 +0000