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path: root/main/mtr/mtr-res_mkquery.patch
blob: c761e97e0ef73b963b9be97d9daa1adb5cc7f279 (plain) (blame)
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--- a/mtr-0.80/configure
+++ b/mtr-0.80/configure
@@ -7165,317 +7165,6 @@
 
 #  AC_CHECK_FUNC(setuid, , AC_MSG_ERROR (I Need either seteuid or setuid))
 
-{ echo "$as_me:$LINENO: checking for res_mkquery" >&5
-echo $ECHO_N "checking for res_mkquery... $ECHO_C" >&6; }
-if test "${ac_cv_func_res_mkquery+set}" = set; then
-  echo $ECHO_N "(cached) $ECHO_C" >&6
-else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h.  */
-/* Define res_mkquery to an innocuous variant, in case <limits.h> declares res_mkquery.
-   For example, HP-UX 11i <limits.h> declares gettimeofday.  */
-#define res_mkquery innocuous_res_mkquery
-
-/* System header to define __stub macros and hopefully few prototypes,
-    which can conflict with char res_mkquery (); below.
-    Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
-    <limits.h> exists even on freestanding compilers.  */
-
-#ifdef __STDC__
-# include <limits.h>
-#else
-# include <assert.h>
-#endif
-
-#undef res_mkquery
-
-/* Override any GCC internal prototype to avoid an error.
-   Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
-#ifdef __cplusplus
-extern "C"
-#endif
-char res_mkquery ();
-/* The GNU C library defines this for functions which it implements
-    to always fail with ENOSYS.  Some functions are actually named
-    something starting with __ and the normal name is an alias.  */
-#if defined __stub_res_mkquery || defined __stub___res_mkquery
-choke me
-#endif
-
-int
-main ()
-{
-return res_mkquery ();
-  ;
-  return 0;
-}
-_ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
-  (eval "$ac_link") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest$ac_exeext &&
-       $as_test_x conftest$ac_exeext; then
-  ac_cv_func_res_mkquery=yes
-else
-  echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	ac_cv_func_res_mkquery=no
-fi
-
-rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
-      conftest$ac_exeext conftest.$ac_ext
-fi
-{ echo "$as_me:$LINENO: result: $ac_cv_func_res_mkquery" >&5
-echo "${ECHO_T}$ac_cv_func_res_mkquery" >&6; }
-if test $ac_cv_func_res_mkquery = yes; then
-  :
-else
-
-{ echo "$as_me:$LINENO: checking for res_mkquery in -lbind" >&5
-echo $ECHO_N "checking for res_mkquery in -lbind... $ECHO_C" >&6; }
-if test "${ac_cv_lib_bind_res_mkquery+set}" = set; then
-  echo $ECHO_N "(cached) $ECHO_C" >&6
-else
-  ac_check_lib_save_LIBS=$LIBS
-LIBS="-lbind  $LIBS"
-cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h.  */
-
-/* Override any GCC internal prototype to avoid an error.
-   Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
-#ifdef __cplusplus
-extern "C"
-#endif
-char res_mkquery ();
-int
-main ()
-{
-return res_mkquery ();
-  ;
-  return 0;
-}
-_ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
-  (eval "$ac_link") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest$ac_exeext &&
-       $as_test_x conftest$ac_exeext; then
-  ac_cv_lib_bind_res_mkquery=yes
-else
-  echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	ac_cv_lib_bind_res_mkquery=no
-fi
-
-rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
-      conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
-fi
-{ echo "$as_me:$LINENO: result: $ac_cv_lib_bind_res_mkquery" >&5
-echo "${ECHO_T}$ac_cv_lib_bind_res_mkquery" >&6; }
-if test $ac_cv_lib_bind_res_mkquery = yes; then
-  cat >>confdefs.h <<_ACEOF
-#define HAVE_LIBBIND 1
-_ACEOF
-
-  LIBS="-lbind $LIBS"
-
-else
-
-{ echo "$as_me:$LINENO: checking for res_mkquery in -lresolv" >&5
-echo $ECHO_N "checking for res_mkquery in -lresolv... $ECHO_C" >&6; }
-if test "${ac_cv_lib_resolv_res_mkquery+set}" = set; then
-  echo $ECHO_N "(cached) $ECHO_C" >&6
-else
-  ac_check_lib_save_LIBS=$LIBS
-LIBS="-lresolv  $LIBS"
-cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h.  */
-
-/* Override any GCC internal prototype to avoid an error.
-   Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
-#ifdef __cplusplus
-extern "C"
-#endif
-char res_mkquery ();
-int
-main ()
-{
-return res_mkquery ();
-  ;
-  return 0;
-}
-_ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
-  (eval "$ac_link") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest$ac_exeext &&
-       $as_test_x conftest$ac_exeext; then
-  ac_cv_lib_resolv_res_mkquery=yes
-else
-  echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	ac_cv_lib_resolv_res_mkquery=no
-fi
-
-rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
-      conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
-fi
-{ echo "$as_me:$LINENO: result: $ac_cv_lib_resolv_res_mkquery" >&5
-echo "${ECHO_T}$ac_cv_lib_resolv_res_mkquery" >&6; }
-if test $ac_cv_lib_resolv_res_mkquery = yes; then
-  cat >>confdefs.h <<_ACEOF
-#define HAVE_LIBRESOLV 1
-_ACEOF
-
-  LIBS="-lresolv $LIBS"
-
-else
-
-{ echo "$as_me:$LINENO: checking for __res_mkquery in -lresolv" >&5
-echo $ECHO_N "checking for __res_mkquery in -lresolv... $ECHO_C" >&6; }
-if test "${ac_cv_lib_resolv___res_mkquery+set}" = set; then
-  echo $ECHO_N "(cached) $ECHO_C" >&6
-else
-  ac_check_lib_save_LIBS=$LIBS
-LIBS="-lresolv  $LIBS"
-cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h.  */
-
-/* Override any GCC internal prototype to avoid an error.
-   Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
-#ifdef __cplusplus
-extern "C"
-#endif
-char __res_mkquery ();
-int
-main ()
-{
-return __res_mkquery ();
-  ;
-  return 0;
-}
-_ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
-  (eval "$ac_link") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest$ac_exeext &&
-       $as_test_x conftest$ac_exeext; then
-  ac_cv_lib_resolv___res_mkquery=yes
-else
-  echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	ac_cv_lib_resolv___res_mkquery=no
-fi
-
-rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
-      conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
-fi
-{ echo "$as_me:$LINENO: result: $ac_cv_lib_resolv___res_mkquery" >&5
-echo "${ECHO_T}$ac_cv_lib_resolv___res_mkquery" >&6; }
-if test $ac_cv_lib_resolv___res_mkquery = yes; then
-  cat >>confdefs.h <<_ACEOF
-#define HAVE_LIBRESOLV 1
-_ACEOF
-
-  LIBS="-lresolv $LIBS"
-
-else
-  { { echo "$as_me:$LINENO: error: No resolver library found" >&5
-echo "$as_me: error: No resolver library found" >&2;}
-   { (exit 1); exit 1; }; }
-fi
-
-fi
-
-fi
-
-fi
-
-# This next line would override the just detected-or-not -lresolv.
-# This apparently hurts BSD. And it's bad practise. So it should go.
-# However, it probably didn't get added for nothing..... Holler if
-# removing it hurts your OS.... -- REW
-#LIBS="$LIBS -lresolv"
-
 { echo "$as_me:$LINENO: checking for herror" >&5
 echo $ECHO_N "checking for herror... $ECHO_C" >&6; }
 if test "${ac_cv_func_herror+set}" = set; then
--- a/mtr-0.80/dns.c
+++ b/mtr-0.80/dns.c
@@ -881,6 +881,51 @@
 }
 
 
+ /* res_mkquery from dietlibc libcruft http://www.fefe.de/dietlibc/ */
+
+static char dnspacket[]="\xfe\xfe\001\000\000\001\000\000\000\000\000\000";
+
+static int res_mkquery(int op, const char *dname, int class, int type, char* data,
+		int datalen, const unsigned char* newrr, char* buf, int buflen) {
+  unsigned char packet[512];
+  unsigned long len;
+
+  memcpy(packet,dnspacket,12);
+  len=rand();
+  packet[0]=len;
+  packet[1]=len>>8;
+  len=0;
+  if ((_res.options&RES_RECURSE)==0) packet[2]=0;
+  {
+    unsigned char* x;
+    const char* y,* tmp;
+    x=packet+12; y=dname;
+    while (*y) {
+      while (*y=='.') ++y;
+      for (tmp=y; *tmp && *tmp!='.'; ++tmp) ;
+      if (tmp-y > 63) return -1;
+      *x=tmp-y;
+      if (!(tmp-y)) break;
+      if ((len+=*x+1) > 254) return -1;
+      ++x;
+      memmove(x,y,tmp-y);
+      x+=tmp-y;
+      if (!*tmp) {
+	*x=0;
+	break;
+      }
+      y=tmp;
+    }
+    *++x= 0; *++x= type;	/* A */
+    *++x= 0; *++x= class;	/* IN */
+    ++x;
+    if (x-packet>buflen) return -1;
+    memmove(buf,packet,x-packet);
+    return x-packet;
+  }
+}
+
+
 void dorequest(char *s,int type,word id)
 {
   packetheader *hp;