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From 3292b8c6f1e5fcc405fa0f7a20e90a60f74037b2 Mon Sep 17 00:00:00 2001
From: Matt Johnston <matt@ucc.asn.au>
Date: Sun, 12 Feb 2023 23:00:00 +0800
Subject: Use write() rather than fprintf() in segv handler
fprintf isn't guaranteed safe (though hasn't had any problems reported).
---
svr-main.c | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)
--- a/svr-main.c
+++ b/svr-main.c
@@ -420,8 +420,12 @@ static void sigchld_handler(int UNUSED(u
/* catch any segvs */
static void sigsegv_handler(int UNUSED(unused)) {
- fprintf(stderr, "Aiee, segfault! You should probably report "
- "this as a bug to the developer\n");
+ int i;
+ const char *msg = "Aiee, segfault! You should probably report "
+ "this as a bug to the developer\n";
+ i = write(STDERR_FILENO, msg, strlen(msg));
+ /* ignore short writes */
+ (void)i;
_exit(EXIT_FAILURE);
}
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