From: Stephen Hemminger <stephen@networkplumber.org>
Date: Fri, 15 Mar 2019 15:30:26 +0000 (-0700)
Subject: ipaddress: print error message on stderr
X-Git-Tag: v5.0.0~4
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f36f8fe535c97f521cc76c2ceae06c2b6443ad98;p=thirdparty%2Fiproute2.git

ipaddress: print error message on stderr

Convention is to print error messages only on stderr.
Helps when scripting.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---

diff --git a/ip/ipaddress.c b/ip/ipaddress.c
index 76edf7064..b504200bb 100644
--- a/ip/ipaddress.c
+++ b/ip/ipaddress.c
@@ -174,7 +174,9 @@ static void print_queuelen(FILE *f, struct rtattr *tb[IFLA_MAX + 1])
 
 		strcpy(ifr.ifr_name, rta_getattr_str(tb[IFLA_IFNAME]));
 		if (ioctl(s, SIOCGIFTXQLEN, &ifr) < 0) {
-			fprintf(f, "ioctl(SIOCGIFTXQLEN) failed: %s\n", strerror(errno));
+			fprintf(stderr,
+				"ioctl(SIOCGIFTXQLEN) failed: %s\n",
+				strerror(errno));
 			close(s);
 			return;
 		}