test runner: for notify events, fold the nl into the same write if possible

1 files changed, 4 insertions, 3 deletions

diff --git a/test/runner.c b/test/runner.c
index a1d7181..e1aed70 100644
--- a/test/runner.c
+++ b/test/runner.c
@@ -126,10 +126,12 @@ int main(int argc, char *argv[]) {
 	while (1) {
 		union addr client_addr;
 		socklen_t  client_size;
-		char buf[4096];
-		ssize_t bytes_read = recvfrom(notify_sock, buf, sizeof(buf), 0, &client_addr.gen, &client_size);
+		char buf[4097];
+		ssize_t bytes_read = recvfrom(notify_sock, buf, sizeof(buf)-1, 0, &client_addr.gen, &client_size);
 		if (bytes_read < 1)
 			error(EXIT_FAILURE, errno, "recvfrom");
+		buf[bytes_read] = '\n';
+		bytes_read++;
 		ssize_t bytes_written = 0;
 		while (bytes_written < bytes_read) {
 			ssize_t n = write(2, &(buf[bytes_written]), bytes_read-bytes_written);
@@ -141,7 +143,6 @@ int main(int argc, char *argv[]) {
 		}
 		if (bytes_written < 0)
 			error(EXIT_FAILURE, errno, "write");
-		write(2, "\n", 1);
 	}
 	error(EXIT_FAILURE, 0, "not reached");
 	return EXIT_FAILURE;