gallium/util: replace gethostbyname() with getaddrinfo()

Compiling with MSVC options /we4995 /we4996 (a subset of /sdl) generates
a warning that the gethostbyname() function is deprecated in favor of
getaddrinfo() or GetAddrInfoW().  Replace the call with getaddrinfo().

Untested.  There are no callers to u_socket_connect() in Gallium.

Reviewed-by: Nicolai Hähnle <[email protected]>

1 files changed, 22 insertions, 13 deletions

diff --git a/src/gallium/auxiliary/util/u_network.c b/src/gallium/auxiliary/util/u_network.c
index 45b3691f901..a7a4d28abcd 100644
--- a/src/gallium/auxiliary/util/u_network.c
+++ b/src/gallium/auxiliary/util/u_network.c
@@ -3,9 +3,11 @@
 #include "util/u_network.h"
 #include "util/u_debug.h"
 
+#include <stdio.h>
 #if defined(PIPE_SUBSYSTEM_WINDOWS_USER)
 #  include <winsock2.h>
 #  include <windows.h>
+#  include <ws2tcpip.h>
 #elif defined(PIPE_OS_LINUX) || defined(PIPE_OS_HAIKU) || \
    defined(PIPE_OS_APPLE) || defined(PIPE_OS_CYGWIN) || defined(PIPE_OS_SOLARIS)
 #  include <sys/socket.h>
@@ -110,28 +112,35 @@ int
 u_socket_connect(const char *hostname, uint16_t port)
 {
 #if defined(PIPE_HAVE_SOCKETS)
-   int s;
-   struct sockaddr_in sa;
-   struct hostent *host = NULL;
+   int s, r;
+   struct addrinfo hints, *addr;
+   char portString[20];
 
-   memset(&sa, 0, sizeof(struct sockaddr_in));
-   host = gethostbyname(hostname);
-   if (!host)
-      return -1;
+   memset(&hints, 0, sizeof hints);
+   hints.ai_family = AF_UNSPEC; // AF_INET or AF_INET6 to force version
+   hints.ai_socktype = SOCK_STREAM;
 
-   memcpy((char *)&sa.sin_addr,host->h_addr_list[0],host->h_length);
-   sa.sin_family= host->h_addrtype;
-   sa.sin_port = htons(port);
+   snprintf(portString, sizeof(portString), "%d", port);
 
-   s = socket(host->h_addrtype, SOCK_STREAM, IPPROTO_TCP);
-   if (s < 0)
+   r = getaddrinfo(hostname, portString, NULL, &addr);
+   if (r != 0) {
       return -1;
+   }
 
-   if (connect(s, (struct sockaddr *)&sa, sizeof(sa))) {
+   s = socket(addr->ai_family, SOCK_STREAM, IPPROTO_TCP);
+   if (s < 0) {
+      freeaddrinfo(addr);
+      return -1;
+   }
+
+   if (connect(s, addr->ai_addr, (int) addr->ai_addrlen)) {
       u_socket_close(s);
+      freeaddrinfo(addr);
       return -1;
    }
 
+   freeaddrinfo(addr);
+
    return s;
 #else
    assert(0);