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From: Alyssa Ross <hi@alyssa.is>
To: leahutils@inbox.vuxu.org
Cc: Alyssa Ross <hi@alyssa.is>
Subject: [PATCH] extrace: skip parent lookup for pid 1
Date: Tue, 15 Jun 2021 12:08:01 +0000	[thread overview]
Message-ID: <20210615120801.121874-1-hi@alyssa.is> (raw)

I was getting a lot of errors that looked like

    extrace: process vanished before we found its parent: pid 1: redirfd

Which are easily avoidable.
---
 extrace.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/extrace.c b/extrace.c
index e3a441a..4848a6f 100644
--- a/extrace.c
+++ b/extrace.c
@@ -140,6 +140,9 @@ pid_depth(pid_t pid)
 	char *s;
 	int fd, d, i;
 
+	if (pid == 1)
+		return 0;
+
 	snprintf(name, sizeof name, "/proc/%d/stat", pid);
 
 	if ((fd = open(name, O_RDONLY)) < 0)
-- 
2.31.1


                 reply	other threads:[~2021-06-15 12:08 UTC|newest]

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