Updated docs

CHANGELOG

@@ -18,6 +18,8 @@ CHANGES:
 	- The starting cache miss value is randomized at startup, fixes #65.
 	- Raw UDP mode added. If the iodined server is reachable directly,
 		packets can be sent to it without DNS encoding. Fixes #36.
+	- Added -F option to write pidfile, based on patch from
+		misc at mandriva.org. Fixes #70.
 
 2009-06-01: 0.5.2 "WifiFree"
 	- Fixed client segfault on OS X, #57

man/iodine.8

@@ -7,7 +7,7 @@ iodine, iodined \- tunnel IPv4 over DNS
 
 .B iodine [-h]
 
-.B iodine [-f] [-u
+.B iodine [-f] [-r] [-u
 .I user
 .B ] [-P
 .I password
@@ -105,6 +105,11 @@ Apply SELinux 'context' after initialization.
 Create 'pidfile' and write process id in it.
 .SS Client Options:
 .TP
+.B -r
+Skip raw UDP mode. If not used, iodine will try getting the public IP address
+of the iodined host and test if it is reachable directly. If it is, traffic
+will be sent to the server instead of the DNS relay.
+.TP
 .B -m fragsize
 Maximum downstream fragsize. Not setting this will cause the client to probe
 the maximum accepted downstream packet size.

src/iodine.c

@@ -1157,7 +1157,7 @@ static void
 usage() {
 	extern char *__progname;
 
-	fprintf(stderr, "Usage: %s [-v] [-h] [-f] [-u user] [-t chrootdir] [-d device] "
+	fprintf(stderr, "Usage: %s [-v] [-h] [-f] [-r] [-u user] [-t chrootdir] [-d device] "
 			"[-P password] [-m maxfragsize] [-z context] [-F pidfile] "
 			"[nameserver] topdomain\n", __progname);
 	exit(2);
@@ -1168,12 +1168,13 @@ help() {
 	extern char *__progname;
 
 	fprintf(stderr, "iodine IP over DNS tunneling client\n");
-	fprintf(stderr, "Usage: %s [-v] [-h] [-f] [-u user] [-t chrootdir] [-d device] "
+	fprintf(stderr, "Usage: %s [-v] [-h] [-f] [-r] [-u user] [-t chrootdir] [-d device] "
 			"[-P password] [-m maxfragsize] [-z context] [-F pidfile] "
 			"[nameserver] topdomain\n", __progname);
 	fprintf(stderr, "  -v to print version info and exit\n");
 	fprintf(stderr, "  -h to print this help and exit\n");
 	fprintf(stderr, "  -f to keep running in foreground\n");
+	fprintf(stderr, "  -r to skip raw UDP mode attempt\n");
 	fprintf(stderr, "  -u name to drop privileges and run as user 'name'\n");
 	fprintf(stderr, "  -t dir to chroot to directory dir\n");
 	fprintf(stderr, "  -d device to set tunnel device name\n");