From: Piotr Praszmo <piotr.praszmo@nokia.com>
Date: Wed, 23 Oct 2019 12:11:01 +0000 (+0200)
Subject: pstree: do not crash on missing /proc/xxxx directory
X-Git-Tag: v23.4rc1~29^2~1
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=d21bee476432e0d0442662fa7899d4dd4897e097;p=psmisc

pstree: do not crash on missing /proc/xxxx directory

This can happen when process ends while pstree is running.
Ignore such processes.
---

diff --git a/src/pstree.c b/src/pstree.c
index 99881e9..3de0792 100644
--- a/src/pstree.c
+++ b/src/pstree.c
@@ -1035,8 +1035,9 @@ static void read_proc(void)
           }
 #endif                /*WITH_SELINUX */
         if (stat(path, &st) < 0) {
-          perror(path);
-          exit(1);
+          (void) fclose(file);
+          free(path);
+          continue;
         }
         size = fread(readbuf, 1, BUFSIZ, file);
         if (ferror(file) == 0) {