Add --list to rc-service to list all available services.

man/rc-service.8

@@ -22,7 +22,7 @@
 .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 .\" SUCH DAMAGE.
 .\"
-.Dd Mar 19, 2008
+.Dd Mar 21, 2008
 .Dt RC-SERVICE 8 SMM
 .Os OpenRC
 .Sh NAME
@@ -32,10 +32,18 @@
 .Nm
 .Ar service cmd
 .Op Ar ...
+.Nm
+.Fl l , -list
 .Sh DESCRIPTION
 Service scripts could be in different places on different systems. 
 .Nm
 locates the specified service and runs it with the given arguments.
+.Pp
+If given the
+.Fl l , -list
+argument then
+.Nm
+will list all available services.
 .Sh SEE ALSO
 .Xr rc 8 ,
 .Sh AUTHORS

src/rc/.gitignore

@@ -62,6 +62,7 @@ rc-depend.o
 rc-logger.o
 rc-misc.o
 rc-plugin.o
+rc-service.o
 rc-status.o
 rc-update.o
 runscript.o

src/rc/Makefile

@@ -1,7 +1,7 @@
 PROG=		rc
 SRCS=		checkpath.c fstabinfo.c mountinfo.c start-stop-daemon.c \
 		rc-applets.c rc-depend.c rc-logger.c \
-		rc-misc.c rc-plugin.c rc-status.c rc-update.c \
+		rc-misc.c rc-plugin.c rc-service.c rc-status.c rc-update.c \
 		runscript.c rc.c
 
 CLEANFILES=	version.h

src/rc/builtins.h

@@ -26,16 +26,17 @@
 
 #include "rc.h"
 
-int checkpath (int argc, char **argv);
+int checkpath(int, char **);
-int fstabinfo (int argc, char **argv);
+int fstabinfo(int, char **);
-int mountinfo (int argc, char **argv);
+int mountinfo(int, char **);
-int rc_depend (int argc, char **argv);
+int rc_depend(int, char **);
-int rc_status (int argc, char **argv);
+int rc_service(int, char **);
-int rc_update (int argc, char **argv);
+int rc_status(int, char **);
-int runscript (int argc, char **argv);
+int rc_update(int, char **);
-int start_stop_daemon (int argc, char **argv);
+int runscript(int, char **);
+int start_stop_daemon(int, char **);
 
-void run_applets (int argc, char **argv);
+void run_applets(int, char **);
 
 /* Handy function so we can wrap einfo around our deptree */
-RC_DEPTREE *_rc_deptree_load (int *regen);
+RC_DEPTREE *_rc_deptree_load (int *);

src/rc/rc-applets.c

@@ -362,23 +362,6 @@ static int do_shell_var(int argc, char **argv)
 	return EXIT_SUCCESS;
 }
 
-static int rc_service(_unused int argc, char **argv)
-{
-	char *service;
-
-	if (argc < 2)
-		eerrorx("%s: you need to specify a service",
-			applet);
-
-	if (!(service = rc_service_resolve(argv[1])))
-		eerrorx("%s: service `%s' does not exist", applet, argv[1]);
-
-	*++argv = service;
-	execv(*argv, argv);
-	eerrorx("%s: %s", applet, strerror(errno));
-	/* NOTREACHED */
-}
-
 void run_applets(int argc, char **argv)
 {
 	int i = 2;

src/rc/rc-service.c

@@ -0,0 +1,99 @@
+/*
+   rc-service.c
+   Finds all OpenRC services
+   */
+
+/*
+ * Copyright 2008 Roy Marples
+ * All rights reserved
+
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <getopt.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "builtins.h"
+#include "einfo.h"
+#include "rc.h"
+#include "rc-misc.h"
+
+extern char *applet;
+
+#include "_usage.h"
+#define getoptstring "l" getoptstring_COMMON
+static const struct option longopts[] = {
+	{ "list",   0, NULL, 'l' },
+	longopts_COMMON
+};
+static const char * const longopts_help[] = {
+	"list all available services",
+	longopts_help_COMMON
+};
+#include "_usage.c"
+
+int rc_service(int argc, char **argv)
+{
+	int opt;
+	char *service;
+	RC_STRINGLIST *list;
+	RC_STRING *s;
+
+	/* Ensure that we are only quiet when explicitly told to be */
+	unsetenv("EINFO_QUIET");
+
+	while ((opt = getopt_long(argc, argv, getoptstring,
+				  longopts, (int *) 0)) != -1)
+	{
+		switch (opt) {
+		case 'l':
+			list = rc_services_in_runlevel(NULL);
+			if (! list)
+				return EXIT_FAILURE;
+			rc_stringlist_sort(&list);
+			TAILQ_FOREACH(s, list, entries)
+				printf("%s\n", s->value);
+			rc_stringlist_free(list);
+			return EXIT_SUCCESS;
+			/* NOTREACHED */
+
+		case_RC_COMMON_GETOPT
+		}
+	}
+
+	argc -= optind;
+	argv += optind;
+
+	if (!*argv)
+		eerrorx("%s: you need to specify a service", applet);
+
+	if (!(service = rc_service_resolve(*argv)))
+		eerrorx("%s: service `%s' does not exist", applet, *argv);
+
+	*argv = service;
+	execv(*argv, argv);
+	eerrorx("%s: %s", applet, strerror(errno));
+	/* NOTREACHED */
+}