Rename the rc binary to openrc

Debian requested this rename due to the "rc" binary conflicting with the
"rc" binary from the plan 9 shell.

We also add a deprecation warning to the binary when it is run as rc to
encourage users to switch to openrc instead.

X-Gentoo-Bug: 493958
X-Gentoo-Bug-URL: https://bugs.gentoo.org/show_bug.cgi?id=493958

3 files changed, 16 insertions, 9 deletions

diff --git a/src/rc/Makefile b/src/rc/Makefile
index a2e638e8..209523ab 100644
--- a/src/rc/Makefile
+++ b/src/rc/Makefile
@@ -1,4 +1,4 @@
-PROG=		rc
+PROG=		openrc
 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-service.c rc-status.c rc-update.c \
@@ -11,7 +11,7 @@ SBINDIR=	${PREFIX}/sbin
 LINKDIR=	${LIBEXECDIR}
 
 BINLINKS=	rc-status
-SBINLINKS=	rc-service rc-update runscript service start-stop-daemon
+SBINLINKS=	rc rc-service rc-update runscript service start-stop-daemon
 RC_BINLINKS=	einfon einfo ewarnn ewarn eerrorn eerror ebegin eend ewend \
 		eindent eoutdent esyslog eval_ecolors ewaitfile \
 		veinfo vewarn vebegin veend vewend veindent veoutdent \
@@ -90,5 +90,5 @@ install: all
 
 check test::
 
-links: rc
-	$(call make-links,${ALL_LINKS},rc,.)
+links: $PROG
+	$(call make-links,${ALL_LINKS},$PROG,.)
diff --git a/src/rc/rc-applets.c b/src/rc/rc-applets.c
index 64b6e888..8431eea3 100644
--- a/src/rc/rc-applets.c
+++ b/src/rc/rc-applets.c
@@ -533,11 +533,18 @@ run_applets(int argc, char **argv)
 {
 	size_t i;
 
+	/*
+	 * The "rc" applet is deprecated and should be referred to as
+	 * "openrc", so output a warning.
+	 */
+	if (strcmp(applet, "rc") == 0)
+		ewarn("The 'rc' applet is deprecated; please use 'openrc' instead.");
 	/* Bug 351712: We need an extra way to explicitly select an applet OTHER
 	 * than trusting argv[0], as argv[0] is not going to be the applet value if
 	 * we are doing SELinux context switching. For this, we allow calls such as
 	 * 'rc --applet APPLET', and shift ALL of argv down by two array items. */
-	if (strcmp(applet, "rc") == 0 && argc >= 3 &&
+	if ((strcmp(applet, "rc") == 0 || strcmp(applet, "openrc") == 0) &&
+		argc >= 3 &&
 		(strcmp(argv[1],"--applet") == 0 || strcmp(argv[1], "-a") == 0)) {
 		applet = argv[2];
 		argv += 2;
@@ -557,6 +564,6 @@ run_applets(int argc, char **argv)
 	if (strncmp(applet, "mark_service_", strlen("mark_service_")) == 0)
 		exit(do_mark_service(argc, argv));
 
-	if (strcmp(applet, "rc") != 0)
+	if (strcmp(applet, "rc") != 0 && strcmp(applet, "openrc") != 0)
 		eerrorx("%s: unknown applet", applet);
 }
diff --git a/src/rc/rc.c b/src/rc/rc.c
index c1c1629a..136e8fa8 100644
--- a/src/rc/rc.c
+++ b/src/rc/rc.c
@@ -125,7 +125,7 @@ cleanup(void)
 #endif
 
 	if (!rc_in_logger && !rc_in_plugin &&
-	    applet && strcmp(applet, "rc") == 0)
+	    applet && (strcmp(applet, "rc") == 0 || strcmp(applet, "openrc") == 0))
 	{
 		if (hook_out)
 			rc_plugin_run(hook_out, runlevel);
@@ -724,7 +724,7 @@ handle_bad_signal(int sig)
 
 #include "_usage.h"
 #define usagestring ""					\
-    "Usage: rc [options] [<runlevel>]"
+    "Usage: openrc [options] [<runlevel>]"
 #define getoptstring "a:no:s:S" getoptstring_COMMON
 static const struct option longopts[] = {
 	{ "applet",   1, NULL, 'a' },
@@ -864,7 +864,7 @@ main(int argc, char **argv)
 	}
 
 	/* Enable logging */
-	setenv("EINFO_LOG", "rc", 1);
+	setenv("EINFO_LOG", "openrc", 1);
 
 	/* Export our PID */
 	snprintf(pidstr, sizeof(pidstr), "%d", getpid());