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https://github.com/sheumann/hush.git
synced 2024-12-22 14:30:31 +00:00
Vodz' last_patch57:
Ok. Patch with reduce size ready.
Notes: syslogd imposible close logsocket,
the real programm write logmessages (hmm, cycle loop?)
(Excuse me - this have small tab-formats rewroting also)
text data bss dec hex filename
2913 332 12388 15633 3d11 syslogd.o
3109 332 9252 12693 3195 syslogd_old.o
This commit is contained in:
Eric Andersen
parent
927c3bdc18
commit
871d93c462
@ -55,7 +55,7 @@
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#define __LOG_FILE "/var/log/messages"
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/* Path to the unix socket */
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static char lfile[BUFSIZ];
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static char lfile[MAXPATHLEN];
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static char *logFilePath = __LOG_FILE;
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@ -63,7 +63,7 @@ static char *logFilePath = __LOG_FILE;
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static int MarkInterval = 20 * 60;
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/* localhost's name */
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static char LocalHostName[32];
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static char LocalHostName[64];
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#ifdef CONFIG_FEATURE_REMOTE_LOG
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#include <netinet/in.h>
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@ -78,9 +78,12 @@ static int doRemoteLog = FALSE;
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static int local_logging = FALSE;
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#endif
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#define MAXLINE 1024 /* maximum line length */
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/* circular buffer variables/structures */
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#ifdef CONFIG_FEATURE_IPC_SYSLOG
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#if __GNU_LIBRARY__ < 5
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#error Sorry. Looks like you are using libc5.
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#error libc5 shm support isnt good enough.
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@ -129,6 +132,7 @@ static inline void sem_down(int semid)
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perror_msg_and_die("semop[SMwdn]");
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}
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void ipcsyslog_cleanup(void){
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printf("Exiting Syslogd!\n");
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if (shmid != -1)
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@ -260,7 +264,8 @@ void circ_message(const char *msg){
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}
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sem_up(s_semid);
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}
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#endif
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#endif /* CONFIG_FEATURE_IPC_SYSLOG */
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/* Note: There is also a function called "message()" in init.c */
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/* Print a message to the log file. */
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static void message (char *fmt, ...) __attribute__ ((format (printf, 1, 2)));
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@ -275,10 +280,10 @@ static void message (char *fmt, ...)
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fl.l_len = 1;
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#ifdef CONFIG_FEATURE_IPC_SYSLOG
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if ((circular_logging) && (buf != NULL)){
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if ((circular_logging == TRUE) && (buf != NULL)){
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char b[1024];
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va_start (arguments, fmt);
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vsprintf (b, fmt, arguments);
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vsnprintf (b, sizeof(b)-1, fmt, arguments);
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va_end (arguments);
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circ_message(b);
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@ -359,15 +364,14 @@ static const int IOV_COUNT = 2;
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v->iov_base = msg;
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v->iov_len = strlen(msg);
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writev_retry:
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if ( -1 == writev(remotefd,iov, IOV_COUNT)){
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if (errno == EINTR) goto writev_retry;
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error_msg_and_die("syslogd: cannot write to remote file handle on"
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error_msg_and_die("cannot write to remote file handle on"
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"%s:%d",RemoteHost,RemotePort);
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}
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}
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if (local_logging)
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if (local_logging == TRUE)
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#endif
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/* now spew out the message to wherever it is supposed to go */
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message("%s %s %s %s\n", timestamp, LocalHostName, res, msg);
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@ -396,7 +400,6 @@ static void domark(int sig)
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/* This must be a #define, since when DODEBUG and BUFFERS_GO_IN_BSS are
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* enabled, we otherwise get a "storage size isn't constant error. */
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#define BUFSIZE 1023
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static int serveConnection (char* tmpbuf, int n_read)
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{
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char *p = tmpbuf;
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@ -404,16 +407,14 @@ static int serveConnection (char* tmpbuf, int n_read)
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while (p < tmpbuf + n_read) {
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int pri = (LOG_USER | LOG_NOTICE);
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char line[ BUFSIZE + 1 ];
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char line[ MAXLINE + 1 ];
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unsigned char c;
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int gotpri = 0;
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char *q = line;
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while (p && (c = *p) && q < &line[ sizeof (line) - 1 ]) {
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if ((c == '<') && !gotpri && isdigit(p[1])) {
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while ( (c = *p) && q < &line[ sizeof (line) - 1 ]) {
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if (c == '<') {
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/* Parse the magic priority number. */
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gotpri = 1;
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pri = 0;
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while (isdigit (*(++p))) {
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pri = 10 * pri + (*p - '0');
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@ -441,7 +442,8 @@ static int serveConnection (char* tmpbuf, int n_read)
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#ifdef CONFIG_FEATURE_REMOTE_LOG
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static void init_RemoteLog (void){
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static void init_RemoteLog (void)
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{
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struct sockaddr_in remoteaddr;
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struct hostent *hostinfo;
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@ -452,7 +454,7 @@ static void init_RemoteLog (void){
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remotefd = socket(AF_INET, SOCK_DGRAM, 0);
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if (remotefd < 0) {
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error_msg_and_die("syslogd: cannot create socket");
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error_msg_and_die("cannot create socket");
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}
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hostinfo = xgethostbyname(RemoteHost);
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@ -466,21 +468,18 @@ static void init_RemoteLog (void){
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for future operations
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*/
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if ( 0 != (connect(remotefd, (struct sockaddr *) &remoteaddr, len))){
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error_msg_and_die("syslogd: cannot connect to remote host %s:%d", RemoteHost, RemotePort);
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error_msg_and_die("cannot connect to remote host %s:%d", RemoteHost, RemotePort);
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}
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}
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#endif
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#define MAXLINE 1024 /* maximum line length */
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static void doSyslogd (void) __attribute__ ((noreturn));
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static void doSyslogd (void)
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{
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struct sockaddr_un sunx;
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socklen_t addrLength;
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int sock_fd;
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fd_set fds;
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@ -507,71 +506,61 @@ static void doSyslogd (void)
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perror_msg_and_die ("Couldn't get file descriptor for socket " _PATH_LOG);
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addrLength = sizeof (sunx.sun_family) + strlen (sunx.sun_path);
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if (bind (sock_fd, (struct sockaddr *) &sunx, addrLength) < 0)
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if (bind(sock_fd, (struct sockaddr *) &sunx, addrLength) < 0)
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perror_msg_and_die ("Could not connect to socket " _PATH_LOG);
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if (chmod (lfile, 0666) < 0)
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perror_msg_and_die ("Could not set permission on " _PATH_LOG);
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FD_ZERO (&fds);
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FD_SET (sock_fd, &fds);
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#ifdef CONFIG_FEATURE_IPC_SYSLOG
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if (circular_logging ){
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if (circular_logging == TRUE ){
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ipcsyslog_init();
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}
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#endif
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#ifdef CONFIG_FEATURE_REMOTE_LOG
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if (doRemoteLog){
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#ifdef CONFIG_FEATURE_REMOTE_LOG
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if (doRemoteLog == TRUE){
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init_RemoteLog();
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}
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#endif
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#endif
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logMessage (LOG_SYSLOG | LOG_INFO, "syslogd started: " BB_BANNER);
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logMessage (LOG_SYSLOG | LOG_INFO, "syslogd started: " CONFIG_BANNER);
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for (;;) {
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fd_set readfds;
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int n_ready;
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int fd;
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FD_ZERO (&fds);
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FD_SET (sock_fd, &fds);
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memcpy (&readfds, &fds, sizeof (fds));
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if ((n_ready = select (FD_SETSIZE, &readfds, NULL, NULL, NULL)) < 0) {
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if (errno == EINTR) continue; /* alarm may have happened. */
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if (select (sock_fd+1, &fds, NULL, NULL, NULL) < 0) {
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if (errno == EINTR) {
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/* alarm may have happened. */
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continue;
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}
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perror_msg_and_die ("select error");
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}
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for (fd = 0; (n_ready > 0) && (fd < FD_SETSIZE); fd++) {
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if (FD_ISSET (fd, &readfds)) {
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--n_ready;
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if (fd == sock_fd) {
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if (FD_ISSET (sock_fd, &fds)) {
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int i;
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RESERVE_CONFIG_BUFFER(tmpbuf, BUFSIZE + 1);
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RESERVE_CONFIG_BUFFER(tmpbuf, BUFSIZ + 1);
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memset(tmpbuf, '\0', BUFSIZE+1);
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if ( (i = recv(fd, tmpbuf, MAXLINE - 2, 0)) > 0) {
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if ( serveConnection(tmpbuf, i) <= 0 ) {
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close (fd);
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FD_CLR(fd, &fds);
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}
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memset(tmpbuf, '\0', BUFSIZ+1);
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if ( (i = recv(sock_fd, tmpbuf, BUFSIZ, 0)) > 0) {
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serveConnection(tmpbuf, i);
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} else {
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perror_msg_and_die ("UNIX socket error");
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}
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RELEASE_CONFIG_BUFFER (tmpbuf);
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} /* fd == sock_fd */
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}/* FD_ISSET() */
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}/* for */
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} /* for main loop */
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}
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extern int syslogd_main(int argc, char **argv)
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{
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int opt;
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#if ! defined(__uClinux__)
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int doFork = TRUE;
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#endif
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char *p;
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@ -581,9 +570,11 @@ extern int syslogd_main(int argc, char **argv)
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case 'm':
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MarkInterval = atoi(optarg) * 60;
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break;
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#if ! defined(__uClinux__)
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case 'n':
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doFork = FALSE;
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break;
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#endif
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case 'O':
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logFilePath = xstrdup(optarg);
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break;
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@ -612,7 +603,7 @@ extern int syslogd_main(int argc, char **argv)
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#ifdef CONFIG_FEATURE_REMOTE_LOG
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/* If they have not specified remote logging, then log locally */
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if (! doRemoteLog)
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if (doRemoteLog == FALSE)
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local_logging = TRUE;
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#endif
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@ -625,14 +616,12 @@ extern int syslogd_main(int argc, char **argv)
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umask(0);
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if (doFork) {
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#if !defined(__UCLIBC__) || defined(__UCLIBC_HAS_MMU__)
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#if ! defined(__uClinux__)
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if (doFork == TRUE) {
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if (daemon(0, 1) < 0)
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perror_msg_and_die("daemon");
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#else
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error_msg_and_die("daemon not supported");
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#endif
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}
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#endif
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doSyslogd();
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return EXIT_SUCCESS;
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