add slurpd pid/args files

doc/man/man5/slapd.conf.5

@@ -550,6 +550,19 @@ Specify the referral to pass back when
 cannot find a local database to handle a request.
 If specified multiple times, each url is provided.
 .TP
+.B replica-argsfile
+The ( absolute ) name of a file that will hold the 
+.B slurpd
+server's command line options
+if started without the debugging command line option.
+.TP
+.B replica-pidfile
+The ( absolute ) name of a file that will hold the 
+.B slurpd
+server's process ID ( see
+.BR getpid (2)
+) if started without the debugging command line option.
+.TP
 .B require <conditions>
 Specify a set of conditions (separated by white space) to
 require (default none).

servers/slurpd/ch_malloc.c

@@ -109,6 +109,25 @@ ch_calloc(
 	return( new );
 }
 
+/*
+ * Just like strdup, except we check the returned value and exit
+ * if anything goes wrong.
+ */
+char *
+ch_strdup(
+    const char *string
+)
+{
+	char	*new;
+
+	if ( (new = ber_strdup( string )) == NULL ) {
+		fprintf( stderr, "ch_strdup: duplication of \"%s\" failed\n",
+				string );
+		exit( EXIT_FAILURE );
+	}
+
+	return( new );
+}
 
 /*
  * Just like free, except we check to see if p is null.

servers/slurpd/config.c

@@ -48,7 +48,8 @@ char	**cargv;
 /* current config file line # */
 static int	lineno;
 
-
+char *slurpd_pid_file = NULL;
+char *slurpd_args_file = NULL;
 
 /*
  * Read the slapd config file, looking only for config options we're
@@ -153,6 +154,41 @@ slurpd_read_config(
 		
 	    free( savefname );
 	    lineno = savelineno - 1;
+
+	} else if ( strcasecmp( cargv[0], "replica-pidfile" ) == 0 ) {
+		if ( cargc < 2 ) {
+#ifdef NEW_LOGGING
+			LDAP_LOG( CONFIG, CRIT, 
+				"%s: line %d missing file name in \"replica-pidfile <file>\" "
+				"line.\n", fname, lineno, 0 );
+#else
+			Debug( LDAP_DEBUG_ANY,
+	    "%s: line %d: missing file name in \"replica-pidfile <file>\" line\n",
+				fname, lineno, 0 );
+#endif
+
+			return( 1 );
+		}
+
+		slurpd_pid_file = ch_strdup( cargv[1] );
+
+	} else if ( strcasecmp( cargv[0], "replica-argsfile" ) == 0 ) {
+		if ( cargc < 2 ) {
+#ifdef NEW_LOGGING
+			LDAP_LOG( CONFIG, CRIT, 
+				   "%s: %d: missing file name in "
+				   "\"argsfile <file>\" line.\n",
+				   fname, lineno, 0 );
+#else
+			Debug( LDAP_DEBUG_ANY,
+	    "%s: line %d: missing file name in \"argsfile <file>\" line\n",
+			    fname, lineno, 0 );
+#endif
+
+			return( 1 );
+		}
+
+		slurpd_args_file = ch_strdup( cargv[1] );
 	}
     }
     fclose( fp );

servers/slurpd/main.c

@@ -25,6 +25,7 @@
 #include <stdio.h>
 #include <sys/stat.h>
 #include <ac/stdlib.h>
+#include <ac/unistd.h>
 
 #include "slurp.h"
 #include "globals.h"
@@ -176,6 +177,35 @@ int main( int argc, char **argv )
 	goto stop;
     }
 
+
+    if ( slurpd_pid_file != NULL ) {
+	FILE *fp = fopen( slurpd_pid_file, "w" );
+
+	if( fp != NULL ) {
+		fprintf( fp, "%d\n", (int) getpid() );
+		fclose( fp );
+
+	} else {
+		free(slurpd_pid_file);
+		slurpd_pid_file = NULL;
+	}
+    }
+
+    if ( slurpd_args_file != NULL ) {
+	FILE *fp = fopen( slurpd_args_file, "w" );
+
+	if( fp != NULL ) {
+		for ( i = 0; i < argc; i++ ) {
+			fprintf( fp, "%s ", argv[i] );
+		}
+		fprintf( fp, "\n" );
+		fclose( fp );
+	} else {
+		free(slurpd_args_file);
+		slurpd_args_file = NULL;
+	}
+    }
+
     /*
      * Detach from the controlling terminal
      * unless the -d flag is given or in one-shot mode.
@@ -262,6 +292,15 @@ stop:
 #else
     Debug( LDAP_DEBUG_ANY, "slurpd: terminated.\n", 0, 0, 0 );
 #endif
+
+    if ( slurpd_pid_file != NULL ) {
+	unlink( slurpd_pid_file );
+    }
+    if ( slurpd_args_file != NULL ) {
+	unlink( slurpd_args_file );
+    }
+
+
 	MAIN_RETURN(rc);
 #endif /* !NO_THREADS */
 }

servers/slurpd/proto-slurp.h

@@ -21,17 +21,22 @@ int doargs	LDAP_P((int argc, char **argv, struct globals *g));
 #define ch_malloc malloc
 #define ch_realloc realloc
 #define ch_calloc calloc
+#define ch_strdup strdup
 #define ch_free free
 #else
 void *ch_malloc	LDAP_P((ber_len_t size));
 void *ch_realloc	LDAP_P((void *block, ber_len_t size));
 void *ch_calloc	LDAP_P((ber_len_t nelem, ber_len_t size));
+char *ch_strdup LDAP_P((const char *str));
 void ch_free	LDAP_P((void *p));
 #endif
 
 /* config.c */
 int slurpd_read_config	LDAP_P((char *fname));
 
+char *slurpd_pid_file;
+char *slurpd_args_file;
+
 /* ch_malloc.c */
 void ch_free LDAP_P(( void *p ));