evolution-gethostbyaddr.patch

   1 2003-09-19  Jeffrey Stedfast  <fejj@ximian.com>
   2
   3         * e-host-utils.c (e_gethostbyaddr_r): Work around a bug in glibc
   4         2.3.2's gethostbyaddr_r() implementation.
   5
   6 Index: evolution/e-util/e-host-utils.c
   7 diff -u evolution/e-util/e-host-utils.c:1.14.4.1 evolution/e-util/e-host-utils.c:1.14.4.2
   8 --- evolution/e-util/e-host-utils.c:1.14.4.1    Mon Sep 29 11:39:44 2003
   9 +++ evolution/e-util/e-host-utils.c     Wed Oct  8 16:36:22 2003
  10 @@ -337,8 +337,21 @@
  11         int retval;
  12
  13         retval = gethostbyaddr_r (addr, addrlen, type, host, buf, buflen, &hp, herr);
  14 -       if (hp != NULL)
  15 +
  16 +       if (hp != NULL) {
  17                 *herr = 0;
  18 +               retval = 0;
  19 +       } else if (retval == 0) {
  20 +               /* glibc 2.3.2 workaround - it seems that
  21 +                * gethostbyaddr_r will sometimes return 0 on fail and
  22 +                * fill @host with garbage strings from /etc/hosts
  23 +                * (failure to parse the file? who knows). Luckily, it
  24 +                * seems that we can rely on @hp being NULL on
  25 +                * fail.
  26 +                */
  27 +               retval = -1;
  28 +       }
  29 +
  30         return retval;
  31  #endif
  32  #else /* No support for gethostbyaddr_r */