X-Git-Url: http://git.openwrt.org/?p=project%2Fucert.git;a=blobdiff_plain;f=usign-exec.c;fp=usign-exec.c;h=241d63077365ee1397d20f78f7b22bb47eb25baa;hp=0dde81ed647b94a382044d97695fe25b497a4443;hb=19f9e1917e1b458ed3b80d0d0295d62ae3ee3185;hpb=077feb5b5824beb3af28385d350e2398ffe46f27

diff --git a/usign-exec.c b/usign-exec.c
index 0dde81e..241d630 100644
--- a/usign-exec.c
+++ b/usign-exec.c
@@ -79,7 +79,7 @@ int usign_s(const char *msgfile, const char *seckeyfile, const char *sigfile, bo
 	}
 
 	waitpid(pid, &status, 0);
-	return WEXITSTATUS(status);
+	return WIFEXITED(status) ? WEXITSTATUS(status) : -1;
 }
 #else
 int usign_s(const char *msgfile, const char *seckeyfile, const char *sigfile, bool quiet) {
@@ -139,8 +139,9 @@ static int usign_f(char fingerprint[17], const char *pubkeyfile, const char *sec
 	close(fds[1]);
 
 	waitpid(pid, &status, 0);
-	status = WEXITSTATUS(status);
-	if (fingerprint && !WEXITSTATUS(status)) {
+	status = WIFEXITED(status) ? WEXITSTATUS(status) : -1;
+
+	if (fingerprint && !status) {
 		ssize_t r;
 		memset(fingerprint, 0, 17);
 		r = read(fds[0], fingerprint, 17);
@@ -235,5 +236,5 @@ int usign_v(const char *msgfile, const char *pubkeyfile,
 	}
 
 	waitpid(pid, &status, 0);
-	return WEXITSTATUS(status);
+	return WIFEXITED(status) ? WEXITSTATUS(status) : -1;
 }