From be1f9b0a93ac3af0899fc7cf70ed7604dbc598a4 Mon Sep 17 00:00:00 2001
From: Roy Marples <roy@marples.name>
Date: Wed, 26 Mar 2008 08:08:47 +0000
Subject: [PATCH] Add --exists and --resolve to rc-service.

---
 init.d/rc-enabled.in |  2 +-
 man/rc-service.8     | 16 +++++++++++++++-
 src/rc/rc-service.c  | 20 ++++++++++++++++++--
 3 files changed, 34 insertions(+), 4 deletions(-)

diff --git a/init.d/rc-enabled.in b/init.d/rc-enabled.in
index f222e6ad..82dc5964 100644
--- a/init.d/rc-enabled.in
+++ b/init.d/rc-enabled.in
@@ -24,7 +24,7 @@ start()
 		done
 
 		# If we have an init script for this service, continue
-		rc-service --list | grep -q "${service}" && continue
+		rc-service --exists "${service}" && continue
 
 		# Ensure that the users rc.conf will start us - ignore the defaults
 		eval enabled=\$${svc##*/}_enable
diff --git a/man/rc-service.8 b/man/rc-service.8
index 0668eafa..4b9c7810 100644
--- a/man/rc-service.8
+++ b/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 21, 2008
+.Dd Mar 26, 2008
 .Dt RC-SERVICE 8 SMM
 .Os OpenRC
 .Sh NAME
@@ -34,6 +34,12 @@
 .Op Ar ...
 .Nm
 .Fl l , -list
+.Nm
+.Fl e , -exists
+.Ar service
+.Nm
+.Fl r , -resolve
+.Ar service
 .Sh DESCRIPTION
 Service scripts could be in different places on different systems. 
 .Nm
@@ -44,7 +50,15 @@ If given the
 argument then
 .Nm
 will list all available services.
+.Pp
+.Fl -e , exists
+return 0 if it can find
+.Ar service ,
+otherwise -1.
+.Fl -r , resolve
+does the same and also prints the full path of the service to stdout.
 .Sh SEE ALSO
 .Xr rc 8 ,
+.Xr stdout 3
 .Sh AUTHORS
 .An "Roy Marples" Aq roy@marples.name
diff --git a/src/rc/rc-service.c b/src/rc/rc-service.c
index e7bd62c8..d3f52b0d 100644
--- a/src/rc/rc-service.c
+++ b/src/rc/rc-service.c
@@ -43,9 +43,11 @@
 extern char *applet;
 
 #include "_usage.h"
-#define getoptstring "l" getoptstring_COMMON
+#define getoptstring "e:lr:" getoptstring_COMMON
 static const struct option longopts[] = {
-	{ "list",   0, NULL, 'l' },
+	{ "exists",  1, NULL, 'e' },
+	{ "list",    0, NULL, 'l' },
+	{ "resolve", 1, NULL, 'r' },
 	longopts_COMMON
 };
 static const char * const longopts_help[] = {
@@ -68,6 +70,12 @@ int rc_service(int argc, char **argv)
 				  longopts, (int *) 0)) != -1)
 	{
 		switch (opt) {
+		case 'e':
+			service = rc_service_resolve(optarg);
+			opt = service ? EXIT_SUCCESS : EXIT_FAILURE;
+			free(service);
+			return opt;
+			/* NOTREACHED */
 		case 'l':
 			list = rc_services_in_runlevel(NULL);
 			if (! list)
@@ -78,6 +86,14 @@ int rc_service(int argc, char **argv)
 			rc_stringlist_free(list);
 			return EXIT_SUCCESS;
 			/* NOTREACHED */
+		case 'r':
+			service = rc_service_resolve(optarg);
+			if (!service)
+				return EXIT_FAILURE;
+			printf("%s\n", service);
+			free(service);
+			return EXIT_SUCCESS;
+			/* NOTREACHED */
 
 		case_RC_COMMON_GETOPT
 		}