workaround broken msghdr struct on 64bit linux

[musl] / src / network / sendmsg.c

diff --git a/src/network/sendmsg.c b/src/network/sendmsg.c
index 5d1123f..047c0ef 100644 (file)
--- a/src/network/sendmsg.c
+++ b/src/network/sendmsg.c
@@ -1,10 +1,19 @@
 #include <sys/socket.h>
+#include <limits.h>
 #include "syscall.h"
 #include "libc.h"
 
 ssize_t sendmsg(int fd, const struct msghdr *msg, int flags)
 {
        ssize_t r;
+#if LONG_MAX > INT_MAX
+       struct msghdr h;
+       if (msg) {
+               h = *msg;
+               h.__pad1 = h.__pad2 = 0;
+               msg = &h;
+       }
+#endif
        CANCELPT_BEGIN;
        r = socketcall(sendmsg, fd, msg, flags, 0, 0, 0);
        CANCELPT_END;