From b54f998a85c525a6d483c827e1f22c7344d49543 Mon Sep 17 00:00:00 2001
From: Adam Ierymenko <adam.ierymenko@gmail.com>
Date: Mon, 16 Dec 2013 16:40:03 -0800
Subject: Linux installer: remove old init.d files, fix for init.d
 startup/shutdown script.

---
 buildinstaller.sh                          |  6 +++++-
 ext/installfiles/linux/init.d/zerotier-one |  4 +---
 installer.c                                | 24 ++++++++++++++++++++++--
 3 files changed, 28 insertions(+), 6 deletions(-)

diff --git a/buildinstaller.sh b/buildinstaller.sh
index f0d6579f..19778222 100755
--- a/buildinstaller.sh
+++ b/buildinstaller.sh
@@ -58,7 +58,11 @@ case "$system" in
 
 		targ="zt1-${vmajor}_${vminor}_${revision}-linux-${machine}-install"
 
-		gcc -Os -o $targ installer.c ext/lz4/lz4.o ext/lz4/lz4hc.o
+		if [ -e /usr/bin/clang ]; then
+			clang -Os -o $targ installer.c ext/lz4/lz4.o ext/lz4/lz4hc.o
+		else
+			gcc -Os -o $targ installer.c ext/lz4/lz4.o ext/lz4/lz4hc.o
+		fi
 		strip --strip-all $targ
 		ls -l $targ
 
diff --git a/ext/installfiles/linux/init.d/zerotier-one b/ext/installfiles/linux/init.d/zerotier-one
index fdb8522a..24d5198e 100755
--- a/ext/installfiles/linux/init.d/zerotier-one
+++ b/ext/installfiles/linux/init.d/zerotier-one
@@ -47,10 +47,8 @@ fi
 
 running=0
 if [ "$pid" -gt 0 ]; then
-	if [ "`readlink -nf /proc/$pid/exe`" = "$zthome/zerotier-one" ]; then
+	if [ -n "`ls -l /proc/$pid/exe | grep -F zerotier-one`" ]; then
 		running=1
-	else
-		rm -f "$zthome/zerotier-one.pid"
 	fi
 fi
 
diff --git a/installer.c b/installer.c
index a6e382df..76542ca6 100644
--- a/installer.c
+++ b/installer.c
@@ -45,6 +45,7 @@
 #else
 #include <unistd.h>
 #include <pwd.h>
+#include <dirent.h>
 #include <fcntl.h>
 #include <sys/types.h>
 #include <sys/stat.h>
@@ -284,9 +285,28 @@ int main(int argc,char **argv)
 	}
 	printf("write %s\n",buf);
 
+	/* Erase any previous startup/shutdown links */
+	for(int rl=0;rl<=6;++rl) {
+		sprintf(buf,"/etc/rc%d.d",rl);
+		DIR *rcd = opendir(buf);
+		if (rcd) {
+			struct dirent *d;
+			while ((d = readdir(rcd))) {
+				if (strstr(d->d_name,"zerotier-one")) {
+					sprintf(buf,"/etc/rc%d.d/%s",rl,d->d_name);
+					unlink(buf);
+					printf("rm %s\n",buf);
+				}
+			}
+			closedir(rcd);
+		}
+	}
+
 	/* Link init script to all the proper places for startup/shutdown */
 	symlink("/etc/init.d/zerotier-one","/etc/rc0.d/K89zerotier-one");
 	printf("link /etc/init.d/zerotier-one /etc/rc0.d/K89zerotier-one\n");
+	symlink("/etc/init.d/zerotier-one","/etc/rc1.d/K89zerotier-one");
+	printf("link /etc/init.d/zerotier-one /etc/rc1.d/K89zerotier-one\n");
 	symlink("/etc/init.d/zerotier-one","/etc/rc2.d/S11zerotier-one");
 	printf("link /etc/init.d/zerotier-one /etc/rc2.d/S11zerotier-one\n");
 	symlink("/etc/init.d/zerotier-one","/etc/rc3.d/S11zerotier-one");
@@ -295,8 +315,8 @@ int main(int argc,char **argv)
 	printf("link /etc/init.d/zerotier-one /etc/rc4.d/S11zerotier-one\n");
 	symlink("/etc/init.d/zerotier-one","/etc/rc5.d/S11zerotier-one");
 	printf("link /etc/init.d/zerotier-one /etc/rc5.d/S11zerotier-one\n");
-	symlink("/etc/init.d/zerotier-one","/etc/rc6.d/S11zerotier-one");
-	printf("link /etc/init.d/zerotier-one /etc/rc6.d/S11zerotier-one\n");
+	symlink("/etc/init.d/zerotier-one","/etc/rc6.d/K89zerotier-one");
+	printf("link /etc/init.d/zerotier-one /etc/rc6.d/K89zerotier-one\n");
 #endif
 
 	printf("# Done!\n");
-- 
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