We need to ensure that the init script started is correct, translating symlinks. This has a new rule - multiplexed services must exist in the same dir as the master sript. So we need to ensuret that net.lo(0) is the real script and not a symlink itself. This fixes Gentoo #219526.

init.d/.gitignore

@@ -26,3 +26,7 @@ mixer
 nscd
 powerd
 syscons
+net.lo
+ttys
+swap-blk
+wscons

init.d/Makefile

@@ -3,7 +3,14 @@ SRCS=	bootmisc.in fsck.in halt.sh.in hostname.in local.in localmount.in \
 	netmount.in root.in swap.in sysctl.in urandom.in
 BIN=	${OBJS}
 
+INSTALLAFTER=	_installafter
+CLEANFILES+=	net.lo
+TARGETS+=	net.lo
+
 MK=	../mk
 include ${MK}/os.mk
 include Makefile.${OS}
 include ${MK}/scripts.mk
+
+_installafter: net.lo
+	${INSTALL} -m ${BINMODE} net.lo ${DESTDIR}/${INITDIR}/${NET_LO}

init.d/Makefile.FreeBSD

@@ -1,3 +1,5 @@
+NET_LO=	net.lo0
+
 # Generic BSD scripts
 SRCS+=	hostid.in moused.in newsyslog.in pf.in rarpd.in rc-enabled.in \
 	rpcbind.in savecore.in syslogd.in

init.d/Makefile.Linux

@@ -1,3 +1,5 @@
+NET_LO=	net.lo
+
 SRCS+=	hwclock.in consolefont.in keymaps.in modules.in mtab.in numlock.in \
 	procfs.in termencoding.in
 

init.d/Makefile.NetBSD

@@ -1,3 +1,5 @@
+NET_LO=	net.lo0
+
 # Generic BSD scripts
 SRCS+=	hostid.in moused.in newsyslog.in pf.in rarpd.in rc-enabled.in \
 	rpcbind.in savecore.in syslogd.in

mk/scripts.mk

@@ -22,9 +22,9 @@ SED_REPLACE=		-e 's:@SHELL@:${SH}:g' -e 's:@LIB@:${LIBNAME}:g' -e 's:@SYSCONFDIR
 .in:
 	${SED} ${SED_REPLACE} ${SED_EXTRA} $< > $@
 
-all: ${OBJS}
+all: ${OBJS} ${TARGETS}
 
-realinstall: ${BIN} ${CONF} ${CONF_APPEND}
+realinstall: ${BIN} ${CONF} ${INC}
 	@if test -n "${DIR}"; then \
 		${ECHO} ${INSTALL} -d ${DESTDIR}/${DIR}; \
 		${INSTALL} -d ${DESTDIR}/${DIR} || exit $$?; \

sh/.gitignore

@@ -4,3 +4,5 @@ net.sh
 rc-functions.sh
 runscript.sh
 init.sh
+ifwatchd-carrier.sh
+ifwatchd-nocarrier.sh

sh/Makefile

@@ -1,8 +1,8 @@
 DIR=	${PREFIX}/${RC_LIB}/sh
-SRCS=	functions.sh.in gendepends.sh.in net.sh.in \
+SRCS=	functions.sh.in gendepends.sh.in \
 	rc-functions.sh.in runscript.sh.in
 INC=	init-common-post.sh rc-mount.sh functions.sh rc-functions.sh
-BIN=	gendepends.sh init.sh net.sh runscript.sh
+BIN=	gendepends.sh init.sh runscript.sh
 
 INSTALLAFTER=	_installafter
 
@@ -13,8 +13,6 @@ include ${MK}/scripts.mk
 
 _installafter:
 	${INSTALL} -d ${DESTDIR}/${INITDIR}
-	@# Provide an init script for the loopback interface
-	ln -snf ${PREFIX}/${RC_LIB}/sh/net.sh ${DESTDIR}/${INITDIR}/${NET_LO} || exit $$?
 	@# Put functions.sh into the init.d dir so 3rd party apps don't have to
 	@# be multilib aware
 	ln -snf ${PREFIX}/${RC_LIB}/sh/functions.sh ${DESTDIR}/${INITDIR} || exit $$?

sh/Makefile.FreeBSD

@@ -1,7 +1,5 @@
 SRCS+=		init.sh.in
 
-NET_LO=		net.lo0
-
 .SUFFIXES:	.sh.BSD.in
 .sh.BSD.in.sh:
 	${SED} ${SED_REPLACE} ${SED_EXTRA} $< > $@

sh/Makefile.Linux

@@ -1,4 +1,3 @@
-NET_LO=		net.lo
 SRCS+=		init.sh.in init-early.sh.in
 BIN+=		init-early.sh
 

sh/Makefile.NetBSD

@@ -1,6 +1,5 @@
 SRCS+=		init.sh.in
 
-NET_LO=		net.lo0
 SRCS+=		ifwatchd-carrier.sh.in ifwatchd-nocarrier.sh.in
 BIN+=		ifwatchd-carrier.sh ifwatchd-nocarrier.sh
 

src/rc/runscript.c

@@ -39,6 +39,7 @@
 #include <errno.h>
 #include <fcntl.h>
 #include <getopt.h>
+#include <libgen.h>
 #include <limits.h>
 #include <signal.h>
 #include <stdio.h>
@@ -707,7 +708,8 @@ static void svc_start(bool deps)
 	hook_out = RC_HOOK_SERVICE_START_OUT;
 	rc_plugin_run(RC_HOOK_SERVICE_START_IN, applet);
 
-	if (rc_conf_yesno("rc_depend_strict"))
+	errno = 0;
+	if (rc_conf_yesno("rc_depend_strict") || errno == ENOENT)
 		depoptions |= RC_DEP_STRICT;
 
 	if (deps) {
@@ -933,8 +935,8 @@ static void svc_stop(bool deps)
 		ewarn ("WARNING: you are stopping a boot service");
 
 	if (deps && ! (state & RC_SERVICE_WASINACTIVE)) {
-
-		if (rc_conf_yesno("rc_depend_strict"))
+		errno = 0;
+		if (rc_conf_yesno("rc_depend_strict") || errno == ENOENT)
 			depoptions |= RC_DEP_STRICT;
 
 		if (! deptree && ((deptree = _rc_deptree_load(NULL)) == NULL))
@@ -1102,39 +1104,73 @@ int runscript(int argc, char **argv)
 	int retval;
 	int opt;
 	RC_STRING *svc;
-	char dir[PATH_MAX];
+	char path[PATH_MAX];
+	char lnk[PATH_MAX];
 	size_t l = 0;
 	size_t ll;
-	char *save;
+	char *dir, *save;
+	const char *file;
 	int depoptions = RC_DEP_TRACE;
+	struct stat stbuf;
 
 	/* Show help if insufficient args */
 	if (argc < 2 || ! exists(argv[1])) {
-		fprintf(stderr, "runscript is not meant to be to run directly\n");
+		fprintf(stderr, "runscript should not be run directly\n");
 		exit(EXIT_FAILURE);
 	}
 
-	applet = basename_c(argv[1]);
-	if (argc < 3)
-		usage(EXIT_FAILURE);
-
-	if (*argv[1] == '/')
-		service = xstrdup(argv[1]);
-	else {
-		getcwd(dir, sizeof(dir));
-		l = strlen(dir) + strlen(argv[1]) + 2;
-		service = xmalloc(sizeof (char) * l);
-		snprintf(service, l, "%s/%s", dir, argv[1]);
+	if (stat(argv[1], &stbuf) != 0) {
+		fprintf(stderr, "runscript `%s': %s\n",
+			argv[1], strerror(errno));
+		exit(EXIT_FAILURE);
 	}
 
 	atexit(cleanup);
 
+	/* We need to work out the real full path to our service.
+	 * This works fine, provided that we ONLY allow mulitplexed services
+	 * to exist in the same directory as the master link.
+	 * Also, the master link as to be a real file in the init dir. */
+	if (!realpath(argv[1], path)) {
+		fprintf(stderr, "realpath: %s\n", strerror(errno));
+		exit(EXIT_FAILURE);
+	}
+	memset(lnk, 0, sizeof(lnk));
+	if (readlink(argv[1], lnk, sizeof(lnk)-1)) {
+		dir = dirname(path);
+		if (strchr(lnk, '/')) {
+			save = xstrdup(dir);
+			dir = dirname(lnk);
+			if (strcmp(dir, save) == 0)
+				file = basename_c(argv[1]);
+			else
+				file = basename_c(lnk);
+			free(save);
+			dir = dirname(path);
+		} else
+			file = basename_c(argv[1]);
+		ll = strlen(dir) + strlen(file) + 2;
+		service = xmalloc(ll);
+		snprintf(service, ll, "%s/%s", dir, file);
+		if (stat(service, &stbuf) != 0) {
+			free(service);
+			service = xstrdup(lnk);
+		}
+	}
+	if (!service)
+		service = xstrdup(path);
+	applet = basename_c(service);
+
+	if (argc < 3)
+		usage(EXIT_FAILURE);
+
 	/* Change dir to / to ensure all init scripts don't use stuff in pwd */
 	chdir("/");
 
 #ifdef __linux__
-	/* coldplug events can trigger init scripts, but we don't want to run them
-	   until after rc sysinit has completed so we punt them to the boot runlevel */
+	/* coldplug events can trigger init scripts, but we don't want to run
+	 * them until after rc sysinit has completed so we punt them to the
+	 * boot runlevel */
 	if (exists("/dev/.rcsysinit")) {
 		eerror("%s: cannot run until sysvinit completes", applet);
 		if (mkdir("/dev/.rcboot", 0755) != 0 && errno != EEXIST)
@@ -1264,7 +1300,8 @@ int runscript(int argc, char **argv)
 			   strcmp(optarg, "ibefore") == 0 ||
 			   strcmp(optarg, "iprovide") == 0)
 		{
-			if (rc_conf_yesno("rc_depend_strict"))
+			errno = 0;
+			if (rc_conf_yesno("rc_depend_strict") || errno == ENOENT)
 				depoptions |= RC_DEP_STRICT;
 
 			if (! deptree && ((deptree = _rc_deptree_load(NULL)) == NULL))