[monitoring-plugins] check_ssh: Correct type on len variable

[Richard Laager]

 Module: monitoring-plugins
 Branch: master
 Commit: 1f2acfd1c6577db6e3d385614922e32ac9fad03f
 Author: Richard Laager <rlaager at wiktel.com>
   Date: Fri Jul 11 18:38:42 2025 -0500
    URL: https://www.monitoring-plugins.org/repositories/monitoring-plugins/commit/?id=1f2acfd1

check_ssh: Correct type on len variable

strlen() returns a size_t.

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

---

 plugins/check_ssh.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

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*/