Function name cleanup.
[oweals/busybox.git] / syslogd.c
index faa6f15e9b6fb8dfe6ffce32be5087999a275a41..aa1218f3f18ae288b8645a97da55ebca127b1ed9 100644 (file)
--- a/syslogd.c
+++ b/syslogd.c
@@ -24,6 +24,8 @@
  */
 
 #include "internal.h"
+#include <stdio.h>
+#include <stdlib.h>
 #include <ctype.h>
 #include <errno.h>
 #include <fcntl.h>
 #include <paths.h>
 #include <signal.h>
 #include <stdarg.h>
-#include <stdio.h>
-#include <sys/klog.h>
+#include <time.h>
+#include <unistd.h>
 #include <sys/socket.h>
 #include <sys/stat.h>
 #include <sys/types.h>
 #include <sys/un.h>
 #include <sys/param.h>
-#include <time.h>
-#include <unistd.h>
+#include <linux/unistd.h>
+
+#if ! defined __GLIBC__ && ! defined __UCLIBC__
+
+typedef unsigned int socklen_t;
+
+#ifndef __alpha__
+# define __NR_klogctl __NR_syslog
+static inline _syscall3(int, klogctl, int, type, char *, b, int, len);
+#else                                                  /* __alpha__ */
+#define klogctl syslog
+#endif
+
+#else
+# include <sys/klog.h>
+#endif
 
-#define ksyslog klogctl
-extern int ksyslog(int type, char *buf, int len);
 
 
 /* SYSLOG_NAMES defined to pull some extra junk from syslog.h */
@@ -69,12 +83,12 @@ static const char syslogd_usage[] =
        "\nLinux system and kernel (provides klogd) logging utility.\n"
        "Note that this version of syslogd/klogd ignores /etc/syslog.conf.\n\n"
        "Options:\n"
-       "\t-m\tChange the mark timestamp interval. default=20min. 0=off\n"
-       "\t-n\tDo not fork into the background (for when run by init)\n"
-#ifdef BB_KLOGD
-       "\t-K\tDo not start up the klogd process (by default syslogd spawns klogd).\n"
+       "\t-m NUM\t\tInterval between MARK lines (default=20min, 0=off)\n"
+       "\t-n\t\tRun as a foreground process\n"
+#ifdef BB_FEATURE_KLOGD
+       "\t-K\t\tDo not start up the klogd process\n"
 #endif
-       "\t-O\tSpecify an alternate log file.  default=/var/log/messages\n"
+       "\t-O FILE\t\tUse an alternate log file (default=/var/log/messages)\n"
 #endif
        ;
 
@@ -170,6 +184,48 @@ static void domark(int sig)
        }
 }
 
+#define BUFSIZE 1023
+static int serveConnection (int conn)
+{
+       char   buf[ BUFSIZE + 1 ];
+       int    n_read;
+
+       while ((n_read = read (conn, 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. */
+                               pri = 0;
+                               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)) {
+                               *q++ = '^';
+                               *q++ = c ^ 0100;
+                       } else {
+                               *q++ = c;
+                       }
+                       p++;
+               }
+               *q = '\0';
+               /* Now log it */
+               logMessage (pri, line);
+       }
+       return (0);
+}
+
 static void doSyslogd (void) __attribute__ ((noreturn));
 static void doSyslogd (void)
 {
@@ -194,7 +250,7 @@ static void doSyslogd (void)
        /* 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));
+               fatalError ("Could not resolv path to " _PATH_LOG ": %s\n", strerror (errno));
 
        unlink (lfile);
 
@@ -202,14 +258,14 @@ static void doSyslogd (void)
        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 ": %s", strerror (errno));
+               fatalError ("Couldn't obtain descriptor for socket " _PATH_LOG ": %s\n", 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 ": %s", strerror (errno));
+               fatalError ("Could not connect to socket " _PATH_LOG ": %s\n", strerror (errno));
 
        if (chmod (lfile, 0666) < 0)
-               fatalError ("Could not set permission on " _PATH_LOG ": %s", strerror (errno));
+               fatalError ("Could not set permission on " _PATH_LOG ": %s\n", strerror (errno));
 
        FD_ZERO (&fds);
        FD_SET (sock_fd, &fds);
@@ -251,47 +307,8 @@ static void doSyslogd (void)
                                                continue;
                                        }
 
-                                       if (pid > 0) {
-
-#                                              define BUFSIZE 1023
-                                               char   buf[ BUFSIZE + 1 ];
-                                               int    n_read;
-
-                                               while ((n_read = read (conn, 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. */
-                                                                       pri = 0;
-                                                                       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)) {
-                                                                       *q++ = '^';
-                                                                       *q++ = c ^ 0100;
-                                                               } else {
-                                                                       *q++ = c;
-                                                               }
-                                                               p++;
-                                                       }
-                                                       *q = '\0';
-                                                       /* Now log it */
-                                                       logMessage (pri, line);
-                                               }
-                                               exit (0);
-                                       }
+                                       if (pid == 0)
+                                               serveConnection (conn);
                                        close (conn);
                                }
                        }
@@ -299,12 +316,12 @@ static void doSyslogd (void)
        }
 }
 
-#ifdef BB_KLOGD
+#ifdef BB_FEATURE_KLOGD
 
 static void klogd_signal(int sig)
 {
-       ksyslog(7, NULL, 0);
-       ksyslog(0, 0, 0);
+       klogctl(7, NULL, 0);
+       klogctl(0, 0, 0);
        logMessage(0, "Kernel log daemon exiting.");
        exit(TRUE);
 }
@@ -324,12 +341,12 @@ static void doKlogd (void)
        logMessage(0, "klogd started: "
                           "BusyBox v" BB_VER " (" BB_BT ")");
 
-       ksyslog(1, NULL, 0);
+       klogctl(1, NULL, 0);
 
        while (1) {
                /* Use kernel syscalls */
                memset(log_buffer, '\0', sizeof(log_buffer));
-               if (ksyslog(2, log_buffer, sizeof(log_buffer)) < 0) {
+               if (klogctl(2, log_buffer, sizeof(log_buffer)) < 0) {
                        char message[80];
 
                        if (errno == EINTR)
@@ -390,7 +407,7 @@ extern int syslogd_main(int argc, char **argv)
        int pid, klogd_pid;
        int doFork = TRUE;
 
-#ifdef BB_KLOGD
+#ifdef BB_FEATURE_KLOGD
        int startKlogd = TRUE;
 #endif
        int stopDoingThat = FALSE;
@@ -410,7 +427,7 @@ extern int syslogd_main(int argc, char **argv)
                        case 'n':
                                doFork = FALSE;
                                break;
-#ifdef BB_KLOGD
+#ifdef BB_FEATURE_KLOGD
                        case 'K':
                                startKlogd = FALSE;
                                break;
@@ -428,6 +445,9 @@ extern int syslogd_main(int argc, char **argv)
                }
        }
 
+       if (argc > 0)
+               usage(syslogd_usage);
+
        /* Store away localhost's name before the fork */
        gethostname(LocalHostName, sizeof(LocalHostName));
        if ((p = strchr(LocalHostName, '.'))) {
@@ -436,7 +456,7 @@ extern int syslogd_main(int argc, char **argv)
 
        umask(0);
 
-#ifdef BB_KLOGD
+#ifdef BB_FEATURE_KLOGD
        /* Start up the klogd process */
        if (startKlogd == TRUE) {
                klogd_pid = fork();
@@ -457,7 +477,7 @@ extern int syslogd_main(int argc, char **argv)
                doSyslogd();
        }
 
-       exit(TRUE);
+       return(TRUE);
 }
 
 /*