check_ssh: Correct type on len variable

strlen() returns a size_t.

Signed-off-by: Richard Laager <rlaager@wiktel.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/plugins/check_ssh.c b/plugins/check_ssh.c
index fd082e11..2c76fa84 100644
--- a/plugins/check_ssh.c
+++ b/plugins/check_ssh.c
@@ -255,7 +255,7 @@ int ssh_connect(mp_check *overall, char *haddr, int hport, char *desired_remote_
                         byte_offset = 0;
 
                         char *index = NULL;
-                        unsigned long len = 0;
+                        size_t len = 0;
                         while ((index = strchr(output + byte_offset, '\n')) != NULL) {
                                 /*Partition the buffer so that this line is a separate string,
                                  * by replacing the newline with NUL*/