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Syslogd will not go to background if "-n" is given. Better help
authorPavel Roskin <proski@gnu.org>
Wed, 7 Jun 2000 21:08:25 +0000 (21:08 -0000)
committerPavel Roskin <proski@gnu.org>
Wed, 7 Jun 2000 21:08:25 +0000 (21:08 -0000)
and argument checking

Changelog
docs/busybox.pod
sysklogd/syslogd.c
syslogd.c

index 493401d..72b0118 100644 (file)
--- a/Changelog
+++ b/Changelog
@@ -65,6 +65,8 @@
        * Implemented 'ls -R' (enabled by enabling BB_FEATURE_LS_RECURSIVE)
        * Implemented "ping -s", fixed error messages and argument parsing -
            Pavel Roskin
+       * Syslogd will not go to background if "-n" is given. Better help
+           and argument checking -- Pavel Roskin
        * More doc updates
 
 
index 7a04b8f..c792444 100644 (file)
@@ -1530,11 +1530,10 @@ Linux system and kernel (provides klogd) logging utility.
 Note that this version of syslogd/klogd ignores /etc/syslog.conf.
 
 Options:
-
-        -m      Change the mark timestamp interval. default=20min. 0=off
-        -n      Do not fork into the background (for when run by init)
-        -K      Do not start up the klogd process (by default syslogd spawns klogd).
-        -O      Specify an alternate log file.  default=/var/log/messages
+       -m NUM          Interval between MARK lines (default=20min, 0=off)
+       -n              Run as a foreground process
+       -K              Do not start up the klogd process
+       -O FILE         Use an alternate log file (default=/var/log/messages)
 
 -------------------------------
 
@@ -1949,4 +1948,4 @@ Enrique Zanardi <ezanardi@ull.es>
 
 =cut
 
-# $Id: busybox.pod,v 1.37 2000/06/07 20:38:15 proski Exp $
+# $Id: busybox.pod,v 1.38 2000/06/07 21:08:25 proski Exp $
index 9a4af49..c790636 100644 (file)
@@ -69,12 +69,12 @@ 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"
+       "\t-m NUM\t\tInterval between MARK lines (default=20min, 0=off)\n"
+       "\t-n\t\tRun as a foreground process\n"
 #ifdef BB_KLOGD
-       "\t-K\tDo not start up the klogd process (by default syslogd spawns klogd).\n"
+       "\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 +170,49 @@ static void domark(int sig)
        }
 }
 
+#define BUFSIZE 1023
+static void serveConnection (int conn) __attribute__ ((noreturn));
+static void 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);
+       }
+       exit (0);
+}
+
 static void doSyslogd (void) __attribute__ ((noreturn));
 static void doSyslogd (void)
 {
@@ -251,47 +294,8 @@ 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);
                                }
                        }
@@ -428,6 +432,9 @@ 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, '.'))) {
index 9a4af49..c790636 100644 (file)
--- a/syslogd.c
+++ b/syslogd.c
@@ -69,12 +69,12 @@ 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"
+       "\t-m NUM\t\tInterval between MARK lines (default=20min, 0=off)\n"
+       "\t-n\t\tRun as a foreground process\n"
 #ifdef BB_KLOGD
-       "\t-K\tDo not start up the klogd process (by default syslogd spawns klogd).\n"
+       "\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 +170,49 @@ static void domark(int sig)
        }
 }
 
+#define BUFSIZE 1023
+static void serveConnection (int conn) __attribute__ ((noreturn));
+static void 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);
+       }
+       exit (0);
+}
+
 static void doSyslogd (void) __attribute__ ((noreturn));
 static void doSyslogd (void)
 {
@@ -251,47 +294,8 @@ 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);
                                }
                        }
@@ -428,6 +432,9 @@ 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, '.'))) {