implement dn_skipname (legacy resolver function)

[musl] / src / network / recvmsg.c

diff --git a/src/network/recvmsg.c b/src/network/recvmsg.c
index edc5f24..4f52665 100644 (file)
--- a/src/network/recvmsg.c
+++ b/src/network/recvmsg.c
@@ -1,12 +1,22 @@
 #include <sys/socket.h>
+#include <limits.h>
 #include "syscall.h"
 #include "libc.h"
 
 ssize_t recvmsg(int fd, struct msghdr *msg, int flags)
 {
        ssize_t r;
-       CANCELPT_BEGIN;
-       r = socketcall(recvmsg, fd, msg, flags, 0, 0, 0);
-       CANCELPT_END;
+#if LONG_MAX > INT_MAX
+       struct msghdr h, *orig = msg;
+       if (msg) {
+               h = *msg;
+               h.__pad1 = h.__pad2 = 0;
+               msg = &h;
+       }
+#endif
+       r = socketcall_cp(recvmsg, fd, msg, flags, 0, 0, 0);
+#if LONG_MAX > INT_MAX
+       if (orig) *orig = h;
+#endif
        return r;
 }