From 475cb3f2a1f3c763f1203ba930ce2bf59883639c Mon Sep 17 00:00:00 2001
From: Nathan Wagner <nw@hydaspes.if.org>
Date: Wed, 6 Feb 2019 02:40:55 +0000
Subject: [PATCH] initialize variable

---
 t/ctap/prove.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/t/ctap/prove.c b/t/ctap/prove.c
index a419afa..7d1b8e2 100644
--- a/t/ctap/prove.c
+++ b/t/ctap/prove.c
@@ -11,6 +11,7 @@
 #include <regex.h>
 
 #define GREATER(x,y) ( ((x) > (y)) ? (x) : (y) )
+#define WARN(x) fprintf(stderr, "%s:%d %s\n", __FILE__, __LINE__, x)
 
 struct result {
 	int test; /* i.e. the number of the test */
@@ -56,7 +57,7 @@ int runone(struct testrun *run) {
 	int pipefd[2];
 	pid_t cpid;
 	FILE *tap;
-	char *line;
+	char *line = 0;
 	ssize_t nread;
 	size_t len = 0;
 	int written = 0;
@@ -87,6 +88,10 @@ int runone(struct testrun *run) {
 		close(pipefd[1]);
 		/* parent continue on */
 		tap = fdopen(pipefd[0], "r");
+		if (tap == NULL) {
+			perror("tap is null:");
+			exit(EXIT_FAILURE);
+		}
 	} else {
 		tap = stdin;
 	}
-- 
2.40.0