[xml] small patch for linux glibc 2.1.2

[Mike Stump <mrs apple com>]

I was trying to compile libxml2-2.6.11 on my linux system, glibc is 
around 2.1.2 as I recall, it almost worked, but I needed the below 
patch for it to work...

Doing diffs in .:
*** ./nanoftp.c.~1~     Sun Jun 27 09:14:08 2004
--- ./nanoftp.c Wed Jul 28 23:36:26 2004
*************** xmlNanoFTPGetConnection(void *ctx) {
*** 1555,1561 ****

      memset (&dataAddr, 0, sizeof(dataAddr));
  #ifdef SUPPORT_IP6
!     if ((ctxt->ftpAddr).ss_family == AF_INET6) {
        ctxt->dataFd = socket (AF_INET6, SOCK_STREAM, IPPROTO_TCP);
        ((struct sockaddr_in6 *)&dataAddr)->sin6_family = AF_INET6;
        dataAddrLen = sizeof(struct sockaddr_in6);
--- 1555,1561 ----

      memset (&dataAddr, 0, sizeof(dataAddr));
  #ifdef SUPPORT_IP6
!     if ((ctxt->ftpAddr).__ss_family == AF_INET6) {
        ctxt->dataFd = socket (AF_INET6, SOCK_STREAM, IPPROTO_TCP);
        ((struct sockaddr_in6 *)&dataAddr)->sin6_family = AF_INET6;
        dataAddrLen = sizeof(struct sockaddr_in6);
*************** xmlNanoFTPGetConnection(void *ctx) {
*** 1574,1580 ****

      if (ctxt->passive) {
  #ifdef SUPPORT_IP6
!       if ((ctxt->ftpAddr).ss_family == AF_INET6)
            snprintf (buf, sizeof(buf), "EPSV\r\n");
        else
  #endif
--- 1574,1580 ----

      if (ctxt->passive) {
  #ifdef SUPPORT_IP6
!       if ((ctxt->ftpAddr).__ss_family == AF_INET6)
            snprintf (buf, sizeof(buf), "EPSV\r\n");
        else
  #endif
*************** xmlNanoFTPGetConnection(void *ctx) {
*** 1605,1611 ****
        cur = &ctxt->controlBuf[ctxt->controlBufAnswer];
        while (((*cur < '0') || (*cur > '9')) && *cur != '\0') cur++;
  #ifdef SUPPORT_IP6
!       if ((ctxt->ftpAddr).ss_family == AF_INET6) {
            if (sscanf (cur, "%u", &temp[0]) != 1) {
                __xmlIOErr(XML_FROM_FTP, XML_FTP_EPSV_ANSWER,
                        "Invalid answer to EPSV\n");
--- 1605,1611 ----
        cur = &ctxt->controlBuf[ctxt->controlBufAnswer];
        while (((*cur < '0') || (*cur > '9')) && *cur != '\0') cur++;
  #ifdef SUPPORT_IP6
!       if ((ctxt->ftpAddr).__ss_family == AF_INET6) {
            if (sscanf (cur, "%u", &temp[0]) != 1) {
                __xmlIOErr(XML_FROM_FTP, XML_FTP_EPSV_ANSWER,
                        "Invalid answer to EPSV\n");
*************** xmlNanoFTPGetConnection(void *ctx) {
*** 1642,1648 ****
      } else {
          getsockname(ctxt->dataFd, (struct sockaddr *) &dataAddr, 
&dataAddrLen);
  #ifdef SUPPORT_IP6
!       if ((ctxt->ftpAddr).ss_family == AF_INET6)
            ((struct sockaddr_in6 *)&dataAddr)->sin6_port = 0;
        else
  #endif
--- 1642,1648 ----
      } else {
          getsockname(ctxt->dataFd, (struct sockaddr *) &dataAddr, 
&dataAddrLen);
  #ifdef SUPPORT_IP6
!       if ((ctxt->ftpAddr).__ss_family == AF_INET6)
            ((struct sockaddr_in6 *)&dataAddr)->sin6_port = 0;
        else
  #endif
*************** xmlNanoFTPGetConnection(void *ctx) {
*** 1661,1667 ****
            return (-1);
        }
  #ifdef SUPPORT_IP6
!       if ((ctxt->ftpAddr).ss_family == AF_INET6) {
            char buf6[INET6_ADDRSTRLEN];
            inet_ntop (AF_INET6, &((struct sockaddr_in6 
*)&dataAddr)->sin6_addr,
                    buf6, INET6_ADDRSTRLEN);
--- 1661,1667 ----
            return (-1);
        }
  #ifdef SUPPORT_IP6
!       if ((ctxt->ftpAddr).__ss_family == AF_INET6) {
            char buf6[INET6_ADDRSTRLEN];
            inet_ntop (AF_INET6, &((struct sockaddr_in6 
*)&dataAddr)->sin6_addr,
                    buf6, INET6_ADDRSTRLEN);
--------------