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-Erik
This commit is contained in:
Erik Andersen 2000-04-18 23:51:51 +00:00
parent 9a8195cc03
commit f13df3752c
2 changed files with 140 additions and 150 deletions
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81
sysklogd/syslogd.c
View File

@ -5,6 +5,8 @@
* Copyright (C) 1999,2000 by Lineo, inc. * Copyright (C) 1999,2000 by Lineo, inc.
* Written by Erik Andersen <andersen@lineo.com>, <andersee@debian.org> * 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 * 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 * it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or * the Free Software Foundation; either version 2 of the License, or
@ -74,8 +76,7 @@ static const char syslogd_usage[] =
/* Note: There is also a function called "message()" in init.c */ /* Note: There is also a function called "message()" in init.c */
/* Print a message to the log file. */ /* Print a message to the log file. */
static void message(char *fmt, ...) static void message (char *fmt, ...) __attribute__ ((format (printf, 1, 2)));
__attribute__ ((format (printf, 1, 2)));
static void message (char *fmt, ...) static void message (char *fmt, ...)
{ {
int fd; int fd;
@ -161,11 +162,13 @@ static void doSyslogd (void)
{ {
struct sockaddr_un sunx; struct sockaddr_un sunx;
size_t addrLength; size_t addrLength;
int sock_fd; int sock_fd;
fd_set readfds; fd_set fds;
char lfile[PATH_MAX]; char lfile[PATH_MAX];
/* Set up sig handlers */ /* Set up signal handlers. */
signal (SIGINT, quit_signal); signal (SIGINT, quit_signal);
signal (SIGTERM, quit_signal); signal (SIGTERM, quit_signal);
signal (SIGQUIT, quit_signal); signal (SIGQUIT, quit_signal);
@ -173,77 +176,72 @@ static void doSyslogd (void)
signal (SIGALRM, domark); signal (SIGALRM, domark);
alarm (MarkInterval); alarm (MarkInterval);
/* create the syslog file so realpath() can work */ /* Create the syslog file so realpath() can work. */
close (open (_PATH_LOG, O_RDWR | O_CREAT, 0644)); close (open (_PATH_LOG, O_RDWR | O_CREAT, 0644));
if (realpath(_PATH_LOG, lfile) == NULL) { if (realpath (_PATH_LOG, lfile) == NULL)
fatalError("Could not resolv path to " _PATH_LOG); fatalError ("Could not resolv path to " _PATH_LOG ": %s", strerror (errno));
}
unlink (lfile); unlink (lfile);
memset (&sunx, 0, sizeof (sunx)); memset (&sunx, 0, sizeof (sunx));
sunx.sun_family = AF_UNIX; sunx.sun_family = AF_UNIX;
strncpy (sunx.sun_path, lfile, sizeof (sunx.sun_path)); strncpy (sunx.sun_path, lfile, sizeof (sunx.sun_path));
if ((sock_fd = socket(AF_UNIX, SOCK_STREAM, 0)) < 0) { if ((sock_fd = socket (AF_UNIX, SOCK_STREAM, 0)) < 0)
fatalError ("Couldn't obtain descriptor for socket " _PATH_LOG); fatalError ("Couldn't obtain descriptor for socket " _PATH_LOG ": %s", strerror (errno));
}
addrLength = sizeof (sunx.sun_family) + strlen (sunx.sun_path); addrLength = sizeof (sunx.sun_family) + strlen (sunx.sun_path);
if ((bind (sock_fd, (struct sockaddr *) &sunx, addrLength)) || if ((bind (sock_fd, (struct sockaddr *) &sunx, addrLength)) || (listen (sock_fd, 5)))
(listen (sock_fd, 5))) { fatalError ("Could not connect to socket " _PATH_LOG ": %s", strerror (errno));
fatalError ("Could not connect to socket " _PATH_LOG);
}
if (chmod (lfile, 0666) < 0) { if (chmod (lfile, 0666) < 0)
fatalError ("Could not set permission on " _PATH_LOG); fatalError ("Could not set permission on " _PATH_LOG ": %s", strerror (errno));
}
FD_ZERO (&readfds); FD_ZERO (&fds);
FD_SET (sock_fd, &readfds); FD_SET (sock_fd, &fds);
logMessage (0, "syslogd started: BusyBox v" BB_VER " (" BB_BT ")"); logMessage (0, "syslogd started: BusyBox v" BB_VER " (" BB_BT ")");
for (;;) { for (;;) {
fd_set readfds;
int n_ready; int n_ready;
int fd; int fd;
memcpy (&readfds, &fds, sizeof (fds));
if ((n_ready = select (FD_SETSIZE, &readfds, NULL, NULL, NULL)) < 0) { if ((n_ready = select (FD_SETSIZE, &readfds, NULL, NULL, NULL)) < 0) {
if (errno == EINTR) continue; /* alarm may have happened. */ 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 = 0; (n_ready > 0) && (fd < FD_SETSIZE); fd++) {
for (fd = 3; fd < FD_SETSIZE; fd++) {
if (FD_ISSET (fd, &readfds)) { if (FD_ISSET (fd, &readfds)) {
--n_ready;
if (fd == sock_fd) { if (fd == sock_fd) {
int conn; int conn;
if ((conn = accept(sock_fd, (struct sockaddr *) &sunx, if ((conn = accept (sock_fd, (struct sockaddr *) &sunx, &addrLength)) < 0) {
&addrLength)) < 0) {
fatalError ("accept error: %s\n", strerror (errno)); fatalError ("accept error: %s\n", strerror (errno));
} }
FD_SET (conn, &readfds); FD_SET (conn, &fds);
continue;
} }
else { else {
#define BUFSIZE 1024 + 1 # define BUFSIZE 1023
char buf; char buf[ BUFSIZE + 1 ];
char *q, *p;
int n_read; int n_read;
char line[BUFSIZE];
while ((n_read = read (fd, buf, BUFSIZE )) > 0) {
int pri = (LOG_USER | LOG_NOTICE);
char line[ BUFSIZE + 1 ];
unsigned char c; unsigned char c;
int pri; char *p = buf, *q = line;
/* Get set to read in a line */ buf[ n_read - 1 ] = '\0';
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 (p && (c = *p) && q < &line[ sizeof (line) - 1 ]) {
if (c == '<') { if (c == '<') {
/* Parse the magic priority number */ /* Parse the magic priority number. */
pri = 0; pri = 0;
while (isdigit (*(++p))) { while (isdigit (*(++p))) {
pri = 10 * pri + (*p - '0'); pri = 10 * pri + (*p - '0');
@ -261,13 +259,11 @@ static void doSyslogd (void)
p++; p++;
} }
*q = '\0'; *q = '\0';
/* Now log it */ /* Now log it */
logMessage (pri, line); logMessage (pri, line);
break;
} }
close (fd); close (fd);
FD_CLR (fd, &readfds); FD_CLR (fd, &fds);
} }
} }
} }
@ -351,7 +347,6 @@ static void doKlogd (void)
#endif #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)) static void daemon_init (char **argv, char *dz, void fn (void))
{ {
setsid(); setsid();

81
syslogd.c
View File

@ -5,6 +5,8 @@
* Copyright (C) 1999,2000 by Lineo, inc. * Copyright (C) 1999,2000 by Lineo, inc.
* Written by Erik Andersen <andersen@lineo.com>, <andersee@debian.org> * 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 * 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 * it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or * the Free Software Foundation; either version 2 of the License, or
@ -74,8 +76,7 @@ static const char syslogd_usage[] =
/* Note: There is also a function called "message()" in init.c */ /* Note: There is also a function called "message()" in init.c */
/* Print a message to the log file. */ /* Print a message to the log file. */
static void message(char *fmt, ...) static void message (char *fmt, ...) __attribute__ ((format (printf, 1, 2)));
__attribute__ ((format (printf, 1, 2)));
static void message (char *fmt, ...) static void message (char *fmt, ...)
{ {
int fd; int fd;
@ -161,11 +162,13 @@ static void doSyslogd (void)
{ {
struct sockaddr_un sunx; struct sockaddr_un sunx;
size_t addrLength; size_t addrLength;
int sock_fd; int sock_fd;
fd_set readfds; fd_set fds;
char lfile[PATH_MAX]; char lfile[PATH_MAX];
/* Set up sig handlers */ /* Set up signal handlers. */
signal (SIGINT, quit_signal); signal (SIGINT, quit_signal);
signal (SIGTERM, quit_signal); signal (SIGTERM, quit_signal);
signal (SIGQUIT, quit_signal); signal (SIGQUIT, quit_signal);
@ -173,77 +176,72 @@ static void doSyslogd (void)
signal (SIGALRM, domark); signal (SIGALRM, domark);
alarm (MarkInterval); alarm (MarkInterval);
/* create the syslog file so realpath() can work */ /* Create the syslog file so realpath() can work. */
close (open (_PATH_LOG, O_RDWR | O_CREAT, 0644)); close (open (_PATH_LOG, O_RDWR | O_CREAT, 0644));
if (realpath(_PATH_LOG, lfile) == NULL) { if (realpath (_PATH_LOG, lfile) == NULL)
fatalError("Could not resolv path to " _PATH_LOG); fatalError ("Could not resolv path to " _PATH_LOG ": %s", strerror (errno));
}
unlink (lfile); unlink (lfile);
memset (&sunx, 0, sizeof (sunx)); memset (&sunx, 0, sizeof (sunx));
sunx.sun_family = AF_UNIX; sunx.sun_family = AF_UNIX;
strncpy (sunx.sun_path, lfile, sizeof (sunx.sun_path)); strncpy (sunx.sun_path, lfile, sizeof (sunx.sun_path));
if ((sock_fd = socket(AF_UNIX, SOCK_STREAM, 0)) < 0) { if ((sock_fd = socket (AF_UNIX, SOCK_STREAM, 0)) < 0)
fatalError ("Couldn't obtain descriptor for socket " _PATH_LOG); fatalError ("Couldn't obtain descriptor for socket " _PATH_LOG ": %s", strerror (errno));
}
addrLength = sizeof (sunx.sun_family) + strlen (sunx.sun_path); addrLength = sizeof (sunx.sun_family) + strlen (sunx.sun_path);
if ((bind (sock_fd, (struct sockaddr *) &sunx, addrLength)) || if ((bind (sock_fd, (struct sockaddr *) &sunx, addrLength)) || (listen (sock_fd, 5)))
(listen (sock_fd, 5))) { fatalError ("Could not connect to socket " _PATH_LOG ": %s", strerror (errno));
fatalError ("Could not connect to socket " _PATH_LOG);
}
if (chmod (lfile, 0666) < 0) { if (chmod (lfile, 0666) < 0)
fatalError ("Could not set permission on " _PATH_LOG); fatalError ("Could not set permission on " _PATH_LOG ": %s", strerror (errno));
}
FD_ZERO (&readfds); FD_ZERO (&fds);
FD_SET (sock_fd, &readfds); FD_SET (sock_fd, &fds);
logMessage (0, "syslogd started: BusyBox v" BB_VER " (" BB_BT ")"); logMessage (0, "syslogd started: BusyBox v" BB_VER " (" BB_BT ")");
for (;;) { for (;;) {
fd_set readfds;
int n_ready; int n_ready;
int fd; int fd;
memcpy (&readfds, &fds, sizeof (fds));
if ((n_ready = select (FD_SETSIZE, &readfds, NULL, NULL, NULL)) < 0) { if ((n_ready = select (FD_SETSIZE, &readfds, NULL, NULL, NULL)) < 0) {
if (errno == EINTR) continue; /* alarm may have happened. */ 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 = 0; (n_ready > 0) && (fd < FD_SETSIZE); fd++) {
for (fd = 3; fd < FD_SETSIZE; fd++) {
if (FD_ISSET (fd, &readfds)) { if (FD_ISSET (fd, &readfds)) {
--n_ready;
if (fd == sock_fd) { if (fd == sock_fd) {
int conn; int conn;
if ((conn = accept(sock_fd, (struct sockaddr *) &sunx, if ((conn = accept (sock_fd, (struct sockaddr *) &sunx, &addrLength)) < 0) {
&addrLength)) < 0) {
fatalError ("accept error: %s\n", strerror (errno)); fatalError ("accept error: %s\n", strerror (errno));
} }
FD_SET (conn, &readfds); FD_SET (conn, &fds);
continue;
} }
else { else {
#define BUFSIZE 1024 + 1 # define BUFSIZE 1023
char buf; char buf[ BUFSIZE + 1 ];
char *q, *p;
int n_read; int n_read;
char line[BUFSIZE];
while ((n_read = read (fd, buf, BUFSIZE )) > 0) {
int pri = (LOG_USER | LOG_NOTICE);
char line[ BUFSIZE + 1 ];
unsigned char c; unsigned char c;
int pri; char *p = buf, *q = line;
/* Get set to read in a line */ buf[ n_read - 1 ] = '\0';
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 (p && (c = *p) && q < &line[ sizeof (line) - 1 ]) {
if (c == '<') { if (c == '<') {
/* Parse the magic priority number */ /* Parse the magic priority number. */
pri = 0; pri = 0;
while (isdigit (*(++p))) { while (isdigit (*(++p))) {
pri = 10 * pri + (*p - '0'); pri = 10 * pri + (*p - '0');
@ -261,13 +259,11 @@ static void doSyslogd (void)
p++; p++;
} }
*q = '\0'; *q = '\0';
/* Now log it */ /* Now log it */
logMessage (pri, line); logMessage (pri, line);
break;
} }
close (fd); close (fd);
FD_CLR (fd, &readfds); FD_CLR (fd, &fds);
} }
} }
} }
@ -351,7 +347,6 @@ static void doKlogd (void)
#endif #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)) static void daemon_init (char **argv, char *dz, void fn (void))
{ {
setsid(); setsid();