Add sockaddr_in -> sockaddr cast

Author: lucic71

tests/unit/out/unsafe/socket_transparent_union.rs

@@ -24,5 +24,17 @@ unsafe fn main_0() -> i32 {
             != 0)
     );
     assert!(((((*libcc2rs::cpp2rust_errno()) == (88)) as i32) != 0));
+    let mut sin: sockaddr_in = std::mem::zeroed::<sockaddr_in>();
+    let mut inlen: u32 = (::std::mem::size_of::<sockaddr_in>() as u64 as u32);
+    (*libcc2rs::cpp2rust_errno()) = 0;
+    assert!(
+        ((((libc::getsockname(
+            fd,
+            ((&mut sin as *mut sockaddr_in) as *mut sockaddr),
+            (&mut inlen as *mut u32)
+        )) == (-1_i32)) as i32)
+            != 0)
+    );
+    assert!(((((*libcc2rs::cpp2rust_errno()) == (88)) as i32) != 0));
     return 0;
 }

tests/unit/socket_transparent_union.c

@@ -2,14 +2,23 @@
 #define _GNU_SOURCE
 #include <assert.h>
 #include <errno.h>
+#include <netinet/in.h>
 #include <sys/socket.h>
 #include <sys/types.h>
 
 int main(void) {
   int fd = 0;
+
   struct sockaddr_storage ssloc;
   socklen_t slen = sizeof(ssloc);
   assert(getsockname(fd, (struct sockaddr *)&ssloc, &slen) == -1);
   assert(errno == ENOTSOCK);
+
+  struct sockaddr_in sin;
+  socklen_t inlen = sizeof(sin);
+  errno = 0;
+  assert(getsockname(fd, (struct sockaddr *)&sin, &inlen) == -1);
+  assert(errno == ENOTSOCK);
+
   return 0;
 }