upstream: make ssh-keyscan return a non-zero exit status if it

finds no keys. bz#2903

OpenBSD-Commit-ID: 89f1081fb81d950ebb48e6e73d21807b2723d488

1 files changed, 6 insertions, 2 deletions

diff --git a/ssh-keyscan.c b/ssh-keyscan.c
index 144daa6df..2ed041559 100644
--- a/ssh-keyscan.c
+++ b/ssh-keyscan.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: ssh-keyscan.c,v 1.125 2019/01/21 10:38:54 djm Exp $ */
+/* $OpenBSD: ssh-keyscan.c,v 1.126 2019/01/26 22:35:01 djm Exp $ */
 /*
  * Copyright 1995, 1996 by David Mazieres <dm@lcs.mit.edu>.
  *
@@ -70,6 +70,8 @@ int hash_hosts = 0;		/* Hash hostname on output */
 
 int print_sshfp = 0;            /* Print SSHFP records instead of known_hosts */
 
+int found_one = 0;              /* Successfully found a key */
+
 #define MAXMAXFD 256
 
 /* The number of seconds after which to give up on a TCP connection */
@@ -287,6 +289,8 @@ keyprint_one(const char *host, struct sshkey *key)
         char *hostport;
         const char *known_host, *hashed;
 
+        found_one = 1;
+
         if (print_sshfp) {
                 export_dns_rr(host, key, stdout, 0);
                 return;
@@ -802,5 +806,5 @@ main(int argc, char **argv)
         while (ncon > 0)
                 conloop();
 
-        return (0);
+        return found_one ? 0 : 1;
 }