[monitoring-plugins] Remove troublesome symbols from output (#2240)

[GitHub]

    Module: monitoring-plugins
    Branch: master
    Commit: 2d4f98f50b3470852aea99c61c64cfc11405a8fc
    Author: Lorenz Kästle <12514511+RincewindsHat at users.noreply.github.com>
 Committer: GitHub <noreply at github.com>
      Date: Mon Mar 16 12:28:25 2026 +0100
       URL: https://www.monitoring-plugins.org/repositories/monitoring-plugins/commit/?id=2d4f98f5

Remove troublesome symbols from output (#2240)

Co-authored-by: Lorenz Kästle <lorenz.kaestle at netways.de>

---

 lib/output.c | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/lib/output.c b/lib/output.c
index d1a8d3b9..bfd43195 100644
--- a/lib/output.c
+++ b/lib/output.c
@@ -259,6 +259,21 @@ mp_state_enum mp_eval_check_default(const mp_check check) {
 	return result;
 }
 
+// Remove troublesome symbols from plugin output
+char *sanitize_output_insitu(char *input) {
+	if (input == NULL) {
+		return input;
+	}
+
+	for (char *walker = input; *walker != '\0'; walker++) {
+		if (*walker == '|') {
+			*walker = ' ';
+		}
+	}
+
+	return input;
+}
+
 /*
  * Generate output string for a mp_check object
  * Non static to be available for testing functions
@@ -299,6 +314,8 @@ char *mp_fmt_output(mp_check check) {
 			subchecks = subchecks->next;
 		}
 
+		result = sanitize_output_insitu(result);
+
 		if (pd_string != NULL && strlen(pd_string) > 0) {
 			asprintf(&result, "%s|%s", result, pd_string);
 		}