Patch writeups/ipv6/eyeball ...

- Fix -h option
- Add "clean" target
- In poll_result(): break on error

2 files changed, 11 insertions, 2 deletions

diff --git a/writeups/ipv6/eyeball/Makefile b/writeups/ipv6/eyeball/Makefile
index 939a53d..14ccb9d 100644
--- a/writeups/ipv6/eyeball/Makefile
+++ b/writeups/ipv6/eyeball/Makefile
@@ -1,3 +1,8 @@
-
 eyeball: eyeball.c
 	cc -g -O0 -Wall -Wextra eyeball.c -o eyeball
+
+.PHONY: clean
+
+clean:
+	rm -f eyeball
+
diff --git a/writeups/ipv6/eyeball/eyeball.c b/writeups/ipv6/eyeball/eyeball.c
index fc01773..6ada24b 100644
--- a/writeups/ipv6/eyeball/eyeball.c
+++ b/writeups/ipv6/eyeball/eyeball.c
@@ -303,6 +303,10 @@ bool parse_args (const int argc, const char **argv) {
 		}
 	}
 
+	if (opts.flags.help) {
+		return true;
+	}
+
 	if (argc < optind + 2) {
 		fprintf(stderr, ARGV0": too few arguments\n");
 		return false;
@@ -450,7 +454,7 @@ ssize_t poll_result (void) {
 
 		if (g.th[0].err.ready && g.th[1].err.ready) {
 			// both failed
-			return -1;
+			break;
 		}
 
 		// both still trying