From 2c8118ee5d980e11f73683fcda2329c323aa381e Mon Sep 17 00:00:00 2001
From: Michael Paquier
Date: Tue, 12 Mar 2024 10:02:54 +0900
Subject: Use printf's %m format instead of strerror(errno) in more places

Most callers of strerror() are removed from the backend code.  The
remaining callers require special handling with a saved errno from a
previous system call.  The frontend code still needs strerror() where
error states need to be handled outside of fprintf.

Note that pg_regress is not changed to use %m as the TAP output may
clobber errno, since those functions call fprintf() and friends before
evaluating the format string.

Support for %m in src/port/snprintf.c has been added in d6c55de1f99a,
hence all the stable branches currently supported include it.

Author: Dagfinn Ilmari Mannsåker
Discussion: https://postgr.es/m/87sf13jhuw.fsf@wibble.ilmari.org
---
 src/tools/ifaddrs/test_ifaddrs.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'src/tools')

diff --git a/src/tools/ifaddrs/test_ifaddrs.c b/src/tools/ifaddrs/test_ifaddrs.c
index b9a1b7b5e84..a1037e1b571 100644
--- a/src/tools/ifaddrs/test_ifaddrs.c
+++ b/src/tools/ifaddrs/test_ifaddrs.c
@@ -66,6 +66,6 @@ main(int argc, char *argv[])
 #endif
 
 	if (pg_foreach_ifaddr(callback, NULL) < 0)
-		fprintf(stderr, "pg_foreach_ifaddr failed: %s\n", strerror(errno));
+		fprintf(stderr, "pg_foreach_ifaddr failed: %m\n");
 	return 0;
 }
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