Fix ssh_write_knownhost() which always returned -1.

fwrite() return the the number of items written not the size of the
buffer.

1 files changed, 5 insertions, 3 deletions

diff --git a/sample.c b/sample.c
index fb6cf4b7..4313b6f3 100644
--- a/sample.c
+++ b/sample.c
@@ -476,7 +476,6 @@ int main(int argc, char **argv){
             /* fallback to SSH_SERVER_NOT_KNOWN behavior */
         case SSH_SERVER_NOT_KNOWN:
             hexa = ssh_get_hexa(hash, hlen);
-            free(hash);
             fprintf(stderr,"The server is unknown. Do you trust the host key ?\n");
             fprintf(stderr, "Public key hash: %s\n", hexa);
             free(hexa);
@@ -488,8 +487,11 @@ int main(int argc, char **argv){
             fprintf(stderr,"This new key will be written on disk for further usage. do you agree ?\n");
             fgets(buf,sizeof(buf),stdin);
             if(strncasecmp(buf,"yes",3)==0){
-                if(ssh_write_knownhost(session))
-                    fprintf(stderr,"error %s\n",ssh_get_error(session));
+                if (ssh_write_knownhost(session) < 0) {
+                  free(hash);
+                  fprintf(stderr, "error %s\n", strerror(errno));
+                  exit(-1);
+                }
             }
             
             break;