From b6ccf865f83f98478a814c1d79d17a0b5212cc6e Mon Sep 17 00:00:00 2001
From: Tommi Rantala <tommi.t.rantala@nokia.com>
Date: Mon, 11 Oct 2021 13:33:18 +0300
Subject: [PATCH] ps: ignore SIGURG

Stop registering signal handler for SIGURG, to avoid ps failure if
someone sends such signal. Without the signal handler, SIGURG will
just be ignored.

  Signal 23 (URG) caught by ps (3.3.16).
  ps:ps/display.c:66: please report this bug

https://man7.org/linux/man-pages/man7/signal.7.html
https://www.freebsd.org/cgi/man.cgi?sektion=3&query=signal
---
 ps/display.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/ps/display.c b/ps/display.c
index 1fddbbe1..b0da9e7e 100644
--- a/ps/display.c
+++ b/ps/display.c
@@ -638,6 +638,7 @@ int main(int argc, char *argv[]){
     case SIGKILL:  /* can not catch */
     case SIGSTOP:  /* can not catch */
     case SIGWINCH: /* don't care if window size changes */
+    case SIGURG:   /* Urgent condition on socket (4.2BSD) */
       ;
     }
   } while (0);