iputils: Use member based initialization for mrghdr struct

Fix build with musl uclibc and glibc dont agree on structure of the struct, musl rightly adds padding elements, so when doing anonymous initialization struct elements gets wrongly mapped on 64bit arches (From OE-Core rev: 3c54b18797eb26d2045fd506d2b0c8b996a0396c) Signed-off-by: Khem Raj <raj.khem@gmail.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2026-06-01 00:59:48 +00:00 · 2016-01-06 14:18:00 -08:00
parent b207868cdd
commit ea9dc990a9
3 changed files with 146 additions and 0 deletions
@@ -0,0 +1,52 @@
+From 000629f74908a2a95f6104444c77ad93cf40d62d Mon Sep 17 00:00:00 2001
+From: Khem Raj <raj.khem@gmail.com>
+Date: Wed, 13 Jan 2016 08:50:50 +0000
+Subject: [PATCH] Intialize struct elements by name
+
+makes it portable across glibc and musl
+
+Fixes errors
+
+| ping.c: In function 'send_probe':
+| ping.c:735:19: warning: initialization makes integer from pointer
+without a cast [-Wint-conversion]
+|           &iov, 1, &cmsg, 0, 0 };
+|                    ^
+| ping.c:735:19: note: (near initialization for 'm.__pad1')
+| ping.c:735:19: error: initializer element is not computable at load
+time
+| ping.c:735:19: note: (near initialization for 'm.__pad1')
+| make: *** [ping.o] Error 1
+
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+---
+Upstream-Status: Pending
+
+ ping.c | 11 +++++++++--
+ 1 file changed, 9 insertions(+), 2 deletions(-)
+
+diff --git a/ping.c b/ping.c
+index 4989760..e67f381 100644
+--- a/ping.c
+++ b/ping.c
+@@ -731,8 +731,15 @@ int send_probe()
+ 
+ 	do {
+ 		static struct iovec iov = {outpack, 0};
+-		static struct msghdr m = { &whereto, sizeof(whereto),
+-						   &iov, 1, &cmsg, 0, 0 };
+		static struct msghdr m = {
+			.msg_name = &whereto,
+			.msg_namelen = sizeof(whereto),
+			.msg_iov = &iov,
+			.msg_iovlen = 1,
+			.msg_control = &cmsg,
+			.msg_controllen = 0,
+			.msg_flags= 0,
+		};
+ 		m.msg_controllen = cmsg_len;
+ 		iov.iov_len = cc;
+ 
+-- 
+2.7.0
+