+++ /dev/null
-#! /bin/sh
-# Guess values for system-dependent variables and create Makefiles.
-# Generated by GNU Autoconf 2.69.
-#
-#
-# Copyright (C) 1992-1996, 1998-2012 Free Software Foundation, Inc.
-#
-#
-# This configure script is free software; the Free Software Foundation
-# gives unlimited permission to copy, distribute and modify it.
-## -------------------- ##
-## M4sh Initialization. ##
-## -------------------- ##
-
-# Be more Bourne compatible
-DUALCASE=1; export DUALCASE # for MKS sh
-if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then :
- emulate sh
- NULLCMD=:
- # Pre-4.2 versions of Zsh do word splitting on ${1+"$@"}, which
- # is contrary to our usage. Disable this feature.
- alias -g '${1+"$@"}'='"$@"'
- setopt NO_GLOB_SUBST
-else
- case `(set -o) 2>/dev/null` in #(
- *posix*) :
- set -o posix ;; #(
- *) :
- ;;
-esac
-fi
-
-
-as_nl='
-'
-export as_nl
-# Printing a long string crashes Solaris 7 /usr/bin/printf.
-as_echo='\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\'
-as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo
-as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo$as_echo
-# Prefer a ksh shell builtin over an external printf program on Solaris,
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-if test -z "$BASH_VERSION$ZSH_VERSION" \
- && (test "X`print -r -- $as_echo`" = "X$as_echo") 2>/dev/null; then
- as_echo='print -r --'
- as_echo_n='print -rn --'
-elif (test "X`printf %s $as_echo`" = "X$as_echo") 2>/dev/null; then
- as_echo='printf %s\n'
- as_echo_n='printf %s'
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- if test "X`(/usr/ucb/echo -n -n $as_echo) 2>/dev/null`" = "X-n $as_echo"; then
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- as_echo_n='/usr/ucb/echo -n'
- else
- as_echo_body='eval expr "X$1" : "X\\(.*\\)"'
- as_echo_n_body='eval
- arg=$1;
- case $arg in #(
- *"$as_nl"*)
- expr "X$arg" : "X\\(.*\\)$as_nl";
- arg=`expr "X$arg" : ".*$as_nl\\(.*\\)"`;;
- esac;
- expr "X$arg" : "X\\(.*\\)" | tr -d "$as_nl"
- '
- export as_echo_n_body
- as_echo_n='sh -c $as_echo_n_body as_echo'
- fi
- export as_echo_body
- as_echo='sh -c $as_echo_body as_echo'
-fi
-
-# The user is always right.
-if test "${PATH_SEPARATOR+set}" != set; then
- PATH_SEPARATOR=:
- (PATH='/bin;/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 && {
- (PATH='/bin:/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 ||
- PATH_SEPARATOR=';'
- }
-fi
-
-
-# IFS
-# We need space, tab and new line, in precisely that order. Quoting is
-# there to prevent editors from complaining about space-tab.
-# (If _AS_PATH_WALK were called with IFS unset, it would disable word
-# splitting by setting IFS to empty value.)
-IFS=" "" $as_nl"
-
-# Find who we are. Look in the path if we contain no directory separator.
-as_myself=
-case $0 in #((
- *[\\/]* ) as_myself=$0 ;;
- *) as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
- IFS=$as_save_IFS
- test -z "$as_dir" && as_dir=.
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-IFS=$as_save_IFS
-
- ;;
-esac
-# We did not find ourselves, most probably we were run as `sh COMMAND'
-# in which case we are not to be found in the path.
-if test "x$as_myself" = x; then
- as_myself=$0
-fi
-if test ! -f "$as_myself"; then
- $as_echo "$as_myself: error: cannot find myself; rerun with an absolute file name" >&2
- exit 1
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-
-# Unset variables that we do not need and which cause bugs (e.g. in
-# pre-3.0 UWIN ksh). But do not cause bugs in bash 2.01; the "|| exit 1"
-# suppresses any "Segmentation fault" message there. '((' could
-# trigger a bug in pdksh 5.2.14.
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-do eval test x\${$as_var+set} = xset \
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-done
-PS1='$ '
-PS2='> '
-PS4='+ '
-
-# NLS nuisances.
-LC_ALL=C
-export LC_ALL
-LANGUAGE=C
-export LANGUAGE
-
-# CDPATH.
-(unset CDPATH) >/dev/null 2>&1 && unset CDPATH
-
-# Use a proper internal environment variable to ensure we don't fall
- # into an infinite loop, continuously re-executing ourselves.
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- # We cannot yet assume a decent shell, so we have to provide a
-# neutralization value for shells without unset; and this also
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-# Preserve -v and -x to the replacement shell.
-BASH_ENV=/dev/null
-ENV=/dev/null
-(unset BASH_ENV) >/dev/null 2>&1 && unset BASH_ENV ENV
-case $- in # ((((
- *v*x* | *x*v* ) as_opts=-vx ;;
- *v* ) as_opts=-v ;;
- *x* ) as_opts=-x ;;
- * ) as_opts= ;;
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-exec $CONFIG_SHELL $as_opts "$as_myself" ${1+"$@"}
-# Admittedly, this is quite paranoid, since all the known shells bail
-# out after a failed `exec'.
-$as_echo "$0: could not re-execute with $CONFIG_SHELL" >&2
-as_fn_exit 255
- fi
- # We don't want this to propagate to other subprocesses.
- { _as_can_reexec=; unset _as_can_reexec;}
-if test "x$CONFIG_SHELL" = x; then
- as_bourne_compatible="if test -n \"\${ZSH_VERSION+set}\" && (emulate sh) >/dev/null 2>&1; then :
- emulate sh
- NULLCMD=:
- # Pre-4.2 versions of Zsh do word splitting on \${1+\"\$@\"}, which
- # is contrary to our usage. Disable this feature.
- alias -g '\${1+\"\$@\"}'='\"\$@\"'
- setopt NO_GLOB_SUBST
-else
- case \`(set -o) 2>/dev/null\` in #(
- *posix*) :
- set -o posix ;; #(
- *) :
- ;;
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-"
- as_required="as_fn_return () { (exit \$1); }
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-
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-as_found=false
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- IFS=$as_save_IFS
- test -z "$as_dir" && as_dir=.
- as_found=:
- case $as_dir in #(
- /*)
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- as_shell=$as_dir/$as_base
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- { $as_echo "$as_bourne_compatible""$as_required" | as_run=a "$as_shell"; } 2>/dev/null; then :
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-
-
- if test "x$CONFIG_SHELL" != x; then :
- export CONFIG_SHELL
- # We cannot yet assume a decent shell, so we have to provide a
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-# Preserve -v and -x to the replacement shell.
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-ENV=/dev/null
-(unset BASH_ENV) >/dev/null 2>&1 && unset BASH_ENV ENV
-case $- in # ((((
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- *x* ) as_opts=-x ;;
- * ) as_opts= ;;
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-export SHELL
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-CLICOLOR_FORCE= GREP_OPTIONS=
-unset CLICOLOR_FORCE GREP_OPTIONS
-
-## --------------------- ##
-## M4sh Shell Functions. ##
-## --------------------- ##
-# as_fn_unset VAR
-# ---------------
-# Portably unset VAR.
-as_fn_unset ()
-{
- { eval $1=; unset $1;}
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-# as_fn_set_status STATUS
-# -----------------------
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-{
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-# as_fn_exit STATUS
-# -----------------
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-{
- set +e
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- exit $1
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-# as_fn_mkdir_p
-# -------------
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-as_fn_mkdir_p ()
-{
-
- case $as_dir in #(
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-{
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-# ----------------------------------------
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-#ifdef __cplusplus
-extern "C"
-#endif
-char __pthread_create ();
-int
-main ()
-{
-return __pthread_create ();
- ;
- return 0;
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-_ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
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- ac_cv_lib_pthread___pthread_create=no
-fi
-rm -f core conftest.err conftest.$ac_objext \
- conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_pthread___pthread_create" >&5
-$as_echo "$ac_cv_lib_pthread___pthread_create" >&6; }
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- cat >>confdefs.h <<_ACEOF
-#define HAVE_LIBPTHREAD 1
-_ACEOF
-
- LIBS="-lpthread $LIBS"
-
-else
- { $as_echo "$as_me:${as_lineno-$LINENO}: checking for __pthread_create_system in -lpthread" >&5
-$as_echo_n "checking for __pthread_create_system in -lpthread... " >&6; }
-if ${ac_cv_lib_pthread___pthread_create_system+:} false; then :
- $as_echo_n "(cached) " >&6
-else
- ac_check_lib_save_LIBS=$LIBS
-LIBS="-lpthread $LIBS"
-cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* 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 __pthread_create_system ();
-int
-main ()
-{
-return __pthread_create_system ();
- ;
- return 0;
-}
-_ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
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-else
- ac_cv_lib_pthread___pthread_create_system=no
-fi
-rm -f core conftest.err conftest.$ac_objext \
- conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_pthread___pthread_create_system" >&5
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- cat >>confdefs.h <<_ACEOF
-#define HAVE_LIBPTHREAD 1
-_ACEOF
-
- LIBS="-lpthread $LIBS"
-
-else
- { $as_echo "$as_me:${as_lineno-$LINENO}: checking for pthread_create in -lc_r" >&5
-$as_echo_n "checking for pthread_create in -lc_r... " >&6; }
-if ${ac_cv_lib_c_r_pthread_create+:} false; then :
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- ac_check_lib_save_LIBS=$LIBS
-LIBS="-lc_r $LIBS"
-cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* 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 pthread_create ();
-int
-main ()
-{
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- ;
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-}
-_ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
- ac_cv_lib_c_r_pthread_create=yes
-else
- ac_cv_lib_c_r_pthread_create=no
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-rm -f core conftest.err conftest.$ac_objext \
- conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_c_r_pthread_create" >&5
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-#define HAVE_LIBC_R 1
-_ACEOF
-
- LIBS="-lc_r $LIBS"
-
-else
- { $as_echo "$as_me:${as_lineno-$LINENO}: checking for pthread_create in -lc" >&5
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-cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h. */
-
-/* Override any GCC internal prototype to avoid an error.
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-#ifdef __cplusplus
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- ;
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-if ac_fn_c_try_link "$LINENO"; then :
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-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_c_pthread_create" >&5
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- cat >>confdefs.h <<_ACEOF
-#define HAVE_LIBC 1
-_ACEOF
-
- LIBS="-lc $LIBS"
-
-else
- as_fn_error $? "\"could not find thread libraries\"" "$LINENO" 5
-fi
-
-fi
-
-fi
-
-fi
-
-fi
-
- ;;
-esac
-
-ac_config_files="$ac_config_files Makefile"
-
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-# want to keep, you may remove or edit it.
-#
-# config.status only pays attention to the cache file if you give it
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-#
-# `ac_cv_env_foo' variables (set or unset) will be overridden when
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-
-_ACEOF
-
-# The following way of writing the cache mishandles newlines in values,
-# but we know of no workaround that is simple, portable, and efficient.
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-# Ultrix sh set writes to stderr and can't be redirected directly,
-# and sets the high bit in the cache file unless we assign to the vars.
-(
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- esac
- case $ac_var in #(
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- BASH_ARGV | BASH_SOURCE) eval $ac_var= ;; #(
- *) { eval $ac_var=; unset $ac_var;} ;;
- esac ;;
- esac
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- (set) 2>&1 |
- case $as_nl`(ac_space=' '; set) 2>&1` in #(
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- sed -n \
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- ;; #(
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- ;;
- esac |
- sort
-) |
- sed '
- /^ac_cv_env_/b end
- t clear
- :clear
- s/^\([^=]*\)=\(.*[{}].*\)$/test "${\1+set}" = set || &/
- t end
- s/^\([^=]*\)=\(.*\)$/\1=${\1=\2}/
- :end' >>confcache
-if diff "$cache_file" confcache >/dev/null 2>&1; then :; else
- if test -w "$cache_file"; then
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-$as_echo "$as_me: updating cache $cache_file" >&6;}
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- cat confcache >"$cache_file"
- else
- case $cache_file in #(
- */* | ?:*)
- mv -f confcache "$cache_file"$$ &&
- mv -f "$cache_file"$$ "$cache_file" ;; #(
- *)
- mv -f confcache "$cache_file" ;;
- esac
- fi
- fi
- else
- { $as_echo "$as_me:${as_lineno-$LINENO}: not updating unwritable cache $cache_file" >&5
-$as_echo "$as_me: not updating unwritable cache $cache_file" >&6;}
- fi
-fi
-rm -f confcache
-
-test "x$prefix" = xNONE && prefix=$ac_default_prefix
-# Let make expand exec_prefix.
-test "x$exec_prefix" = xNONE && exec_prefix='${prefix}'
-
-# Transform confdefs.h into DEFS.
-# Protect against shell expansion while executing Makefile rules.
-# Protect against Makefile macro expansion.
-#
-# If the first sed substitution is executed (which looks for macros that
-# take arguments), then branch to the quote section. Otherwise,
-# look for a macro that doesn't take arguments.
-ac_script='
-:mline
-/\\$/{
- N
- s,\\\n,,
- b mline
-}
-t clear
-:clear
-s/^[ ]*#[ ]*define[ ][ ]*\([^ (][^ (]*([^)]*)\)[ ]*\(.*\)/-D\1=\2/g
-t quote
-s/^[ ]*#[ ]*define[ ][ ]*\([^ ][^ ]*\)[ ]*\(.*\)/-D\1=\2/g
-t quote
-b any
-:quote
-s/[ `~#$^&*(){}\\|;'\''"<>?]/\\&/g
-s/\[/\\&/g
-s/\]/\\&/g
-s/\$/$$/g
-H
-:any
-${
- g
- s/^\n//
- s/\n/ /g
- p
-}
-'
-DEFS=`sed -n "$ac_script" confdefs.h`
-
-
-ac_libobjs=
-ac_ltlibobjs=
-U=
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- # 1. Remove the extension, and $U if already installed.
- ac_script='s/\$U\././;s/\.o$//;s/\.obj$//'
- ac_i=`$as_echo "$ac_i" | sed "$ac_script"`
- # 2. Prepend LIBOBJDIR. When used with automake>=1.10 LIBOBJDIR
- # will be set to the directory where LIBOBJS objects are built.
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- as_fn_append ac_ltlibobjs " \${LIBOBJDIR}$ac_i"'$U.lo'
-done
-LIBOBJS=$ac_libobjs
-
-LTLIBOBJS=$ac_ltlibobjs
-
-
-
-: "${CONFIG_STATUS=./config.status}"
-ac_write_fail=0
-ac_clean_files_save=$ac_clean_files
-ac_clean_files="$ac_clean_files $CONFIG_STATUS"
-{ $as_echo "$as_me:${as_lineno-$LINENO}: creating $CONFIG_STATUS" >&5
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-#! $SHELL
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-# configure, is in config.log if it exists.
-
-debug=false
-ac_cs_recheck=false
-ac_cs_silent=false
-
-SHELL=\${CONFIG_SHELL-$SHELL}
-export SHELL
-_ASEOF
-cat >>$CONFIG_STATUS <<\_ASEOF || as_write_fail=1
-## -------------------- ##
-## M4sh Initialization. ##
-## -------------------- ##
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- NULLCMD=:
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- # is contrary to our usage. Disable this feature.
- alias -g '${1+"$@"}'='"$@"'
- setopt NO_GLOB_SUBST
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- case `(set -o) 2>/dev/null` in #(
- *posix*) :
- set -o posix ;; #(
- *) :
- ;;
-esac
-fi
-
-
-as_nl='
-'
-export as_nl
-# Printing a long string crashes Solaris 7 /usr/bin/printf.
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- as_echo_n='print -rn --'
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- as_echo_n='printf %s'
-else
- if test "X`(/usr/ucb/echo -n -n $as_echo) 2>/dev/null`" = "X-n $as_echo"; then
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- as_echo_n='/usr/ucb/echo -n'
- else
- as_echo_body='eval expr "X$1" : "X\\(.*\\)"'
- as_echo_n_body='eval
- arg=$1;
- case $arg in #(
- *"$as_nl"*)
- expr "X$arg" : "X\\(.*\\)$as_nl";
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- export as_echo_n_body
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- fi
- export as_echo_body
- as_echo='sh -c $as_echo_body as_echo'
-fi
-
-# The user is always right.
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- (PATH='/bin;/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 && {
- (PATH='/bin:/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 ||
- PATH_SEPARATOR=';'
- }
-fi
-
-
-# IFS
-# We need space, tab and new line, in precisely that order. Quoting is
-# there to prevent editors from complaining about space-tab.
-# (If _AS_PATH_WALK were called with IFS unset, it would disable word
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-IFS=" "" $as_nl"
-
-# Find who we are. Look in the path if we contain no directory separator.
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-
- ;;
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- exit 1
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- && ( (unset $as_var) || exit 1) >/dev/null 2>&1 && unset $as_var || :
-done
-PS1='$ '
-PS2='> '
-PS4='+ '
-
-# NLS nuisances.
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-export LC_ALL
-LANGUAGE=C
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-
-# CDPATH.
-(unset CDPATH) >/dev/null 2>&1 && unset CDPATH
-
-
-# as_fn_error STATUS ERROR [LINENO LOG_FD]
-# ----------------------------------------
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- as_fn_exit $as_status
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-
-
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-# Set $? to STATUS, without forking.
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-{
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-
-# as_fn_exit STATUS
-# -----------------
-# Exit the shell with STATUS, even in a "trap 0" or "set -e" context.
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-{
- set +e
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- exit $1
-} # as_fn_exit
-
-# as_fn_unset VAR
-# ---------------
-# Portably unset VAR.
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-{
- { eval $1=; unset $1;}
-}
-as_unset=as_fn_unset
-# as_fn_append VAR VALUE
-# ----------------------
-# Append the text in VALUE to the end of the definition contained in VAR. Take
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- {
- eval $1+=\$2
- }'
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- as_fn_append ()
- {
- eval $1=\$$1\$2
- }
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- eval 'as_fn_arith ()
- {
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- }'
-else
- as_fn_arith ()
- {
- as_val=`expr "$@" || test $? -eq 1`
- }
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-
-
-if expr a : '\(a\)' >/dev/null 2>&1 &&
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-fi
-
-if (as_dir=`dirname -- /` && test "X$as_dir" = X/) >/dev/null 2>&1; then
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-fi
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-as_me=`$as_basename -- "$0" ||
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-$as_echo X/"$0" |
- sed '/^.*\/\([^/][^/]*\)\/*$/{
- s//\1/
- q
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- /^X\/\(\/\/\)$/{
- s//\1/
- q
- }
- /^X\/\(\/\).*/{
- s//\1/
- q
- }
- s/.*/./; q'`
-
-# Avoid depending upon Character Ranges.
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-as_cr_LETTERS='ABCDEFGHIJKLMNOPQRSTUVWXYZ'
-as_cr_Letters=$as_cr_letters$as_cr_LETTERS
-as_cr_digits='0123456789'
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-
-ECHO_C= ECHO_N= ECHO_T=
-case `echo -n x` in #(((((
--n*)
- case `echo 'xy\c'` in
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- xy) ECHO_C='\c';;
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- esac;;
-*)
- ECHO_N='-n';;
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-rm -f conf$$ conf$$.exe conf$$.file
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-else
- rm -f conf$$.dir
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-fi
-if (echo >conf$$.file) 2>/dev/null; then
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- # ... but there are two gotchas:
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- else
- as_ln_s='cp -pR'
- fi
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- as_ln_s='cp -pR'
-fi
-rm -f conf$$ conf$$.exe conf$$.dir/conf$$.file conf$$.file
-rmdir conf$$.dir 2>/dev/null
-
-
-# as_fn_mkdir_p
-# -------------
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-{
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-# config.status does its own redirection, appending to config.log.
-# Unfortunately, on DOS this fails, as config.log is still kept open
-# by configure, so config.status won't be able to write to it; its
-# output is simply discarded. So we exec the FD to /dev/null,
-# effectively closing config.log, so it can be properly (re)opened and
-# appended to by config.status. When coming back to configure, we
-# need to make the FD available again.
-if test "$no_create" != yes; then
- ac_cs_success=:
- ac_config_status_args=
- test "$silent" = yes &&
- ac_config_status_args="$ac_config_status_args --quiet"
- exec 5>/dev/null
- $SHELL $CONFIG_STATUS $ac_config_status_args || ac_cs_success=false
- exec 5>>config.log
- # Use ||, not &&, to avoid exiting from the if with $? = 1, which
- # would make configure fail if this is the last instruction.
- $ac_cs_success || as_fn_exit 1
-fi
-if test -n "$ac_unrecognized_opts" && test "$enable_option_checking" != no; then
- { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: unrecognized options: $ac_unrecognized_opts" >&5
-$as_echo "$as_me: WARNING: unrecognized options: $ac_unrecognized_opts" >&2;}
-fi
-
+++ /dev/null
-/*
- * Copyright (C) Internet Systems Consortium, Inc. ("ISC")
- *
- * This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/.
- *
- * See the COPYRIGHT file distributed with this work for additional
- * information regarding copyright ownership.
- */
-
-/*
- * TCP DNS perf tool
- *
- * main parameters are -r<rate> and <server>
- * standard options are 4|6 (IPv4|IPv6), rate computations, terminaisons,
- * EDNS0, NOERROR|NXDOMAIN, template (for your own query), diags,
- * alternate server port and UDP version.
- *
- * To help to crush kernels (unfortunately both client and server :-)
- * this version of the tool is multi-threaded:
- * - the master thread inits, monitors the activity each millisecond,
- * and report results when finished
- * - the connecting thread computes the date of the next connection,
- * creates a socket, makes it non blocking, binds it if wanted,
- * connects it and pushes it on the output epoll queue
- * - the sending thread gets by epoll connected sockets, timeouts
- * embryonic connections, sends queries and pushes sockets on
- * the input epoll queue
- * - the receiving thread gets by epoll sockets with a pending
- * response, receives responses, timeouts unanswered queries,
- * and recycles (by closing them) all sockets.
- *
- * Rate computation details:
- * - the target rate is in query+response per second.
- * - rating is done by the connecting thread.
- * - of course the tool is always late so the target rate is never
- * reached. BTW there is no attempt to internally adjust the
- * effective rate to the target one: this must be by tuning
- * the rate related parameters, first the -r<rate> itself.
- * - at the beginning of the connecting thread iteration loop
- * (second "loops" counter) the date of the due (aka next) connect()
- * call is computed from the last one with 101% of the rate.
- * - the due date is compared with the current date (aka now).
- * - if the due is before, lateconn counter is incremented, else
- * the thread sleeps for the difference,
- * - the next step is to reget the current date, if it is still
- * before the due date (e.g., because the sleep was interrupted)
- * the first shortwait counter is incremented.
- * - if it is after (common case) the number of connect calls is
- * computed from the difference between now and due divided by rate,
- * rounded to the next number,
- * - this number of connect() calls is bounded by the -a<aggressiveness>
- * parameter to avoid too many back to back new connection attempts.
- * - the compconn counter is incremented, errors (other than EINPROGRESS
- * from not blocking connect()) are printed. When an error is
- * related to a local limit (e.g., EMFILE, EADDRNOTAVAIL or the
- * internal ENOMEM) the locallimit counter is incremented.
- */
-
-#ifdef __linux__
-#define _GNU_SOURCE
-#endif
-
-#include <sys/types.h>
-#include <sys/epoll.h>
-#include <sys/prctl.h>
-#include <sys/select.h>
-#include <sys/socket.h>
-#include <sys/wait.h>
-
-#include <netinet/in.h>
-#include <arpa/inet.h>
-
-#include <ctype.h>
-#include <errno.h>
-#include <fcntl.h>
-#include <math.h>
-#include <netdb.h>
-#include <pthread.h>
-#include <signal.h>
-#include <inttypes.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <time.h>
-#include <unistd.h>
-
-/* DNS defines */
-
-#define NS_TYPE_A 1
-#define NS_TYPE_NS 2
-#define NS_TYPE_CNAME 5
-#define NS_TYPE_SOA 6
-#define NS_TYPE_NULL 10
-#define NS_TYPE_PTR 12
-#define NS_TYPE_MX 15
-#define NS_TYPE_TXT 16
-#define NS_TYPE_AAAA 28
-#define NS_TYPE_OPT 41
-#define NS_TYPE_DS 43
-#define NS_TYPE_RRSIG 46
-#define NS_TYPE_NSEC 47
-#define NS_TYPE_DNSKEY 48
-#define NS_TYPE_NSEC3 50
-#define NS_TYPE_NSEC3PARAM 51
-#define NS_TYPE_TSIG 250
-#define NS_TYPE_IXFR 251
-#define NS_TYPE_AXFR 252
-#define NS_TYPE_ANY 255
-
-#define NS_CLASS_IN 1
-#define NS_CLASS_ANY 255
-
-#define NS_OFF_ID 0
-#define NS_OFF_FLAGS 2
-#define NS_OFF_QDCOUNT 4
-#define NS_OFF_ANCOUNT 6
-#define NS_OFF_NSCOUNT 8
-#define NS_OFF_ARCOUNT 10
-#define NS_OFF_QUESTION 12
-
-#define NS_FLAG_QR 0x8000U
-#define NS_FLAG_AA 0x0400U
-#define NS_FLAG_TC 0x0200U
-#define NS_FLAG_RD 0x0100U
-#define NS_FLAG_RA 0x0080U
-#define NS_FLAG_AD 0x0020U
-#define NS_FLAG_CD 0x0010U
-
-#define NS_XFLAG_DO 0x8000U
-
-#define NS_OPCODE_MASK 0x7000U
-#define NS_OPCODE_QUERY 0
-
-#define NS_RCODE_MASK 0x000fU
-#define NS_RCODE_NOERROR 0
-#define NS_RCODE_FORMERR 1
-#define NS_RCODE_SERVFAIL 2
-#define NS_RCODE_NXDOMAIN 3
-#define NS_RCODE_NOIMP 4
-#define NS_RCODE_REFUSED 5
-#define NS_RCODE_LAST 6
-
-/* chaining macros */
-
-#define ISC_INIT(head, headl) do { \
- (head) = -1; \
- (headl) = &(head); \
-} while (0)
-
-#define ISC_INSERT(head, headl, elm) do { \
- (elm)->next = -1; \
- (elm)->prev = (headl); \
- *(headl) = (elm) - xlist; \
- (headl) = &((elm)->next); \
-} while (0)
-
-#define ISC_REMOVE(headl, elm) do { \
- if ((elm)->next != -1) \
- xlist[(elm)->next].prev = (elm)->prev; \
- else \
- (headl) = (elm)->prev; \
- *(elm)->prev = (elm)->next; \
-} while (0)
-
-/*
- * Data structures
- */
-
-/*
- * exchange:
- * - per exchange values:
- * * order (for debugging)
- * * id
- * * random (for debugging)
- * * time-stamps
- *
- * sent/rcvd chain, "next to be received" on entry cache.
- */
-
-struct exchange { /* per exchange structure */
- int sock; /* socket descriptor */
- int next, *prev; /* chaining */
-#define X_FREE 0
-#define X_CONN 1
-#define X_READY 2
-#define X_SENT 3
- int state; /* state */
- uint16_t id; /* ID */
- uint64_t order; /* number of this exchange */
- struct timespec ts0, ts1, ts2, ts3; /* timespecs */
-};
-struct exchange *xlist; /* exchange list */
-int xlast; /* number of exchanges */
-int xconn, *xconnl; /* connecting list */
-int xready, *xreadyl; /* connected list */
-int xsent, *xsentl; /* sent list */
-int xfree, *xfreel; /* free list */
-int xused; /* next to be used list */
-pthread_mutex_t mtxconn, mtxsent, mtxfree; /* mutexes */
-uint64_t xccount; /* connected counters */
-uint64_t xscount; /* sent counters */
-uint64_t xrcount; /* received counters */
-
-/*
- * statictics counters and accumulators
- */
-
-uint64_t recverr, tooshort, locallimit; /* error counters */
-uint64_t loops[4], shortwait[3]; /* rate stats */
-uint64_t lateconn, compconn; /* rate stats (cont) */
-uint64_t badconn, collconn, badsent, collsent; /* rate stats (cont) */
-uint64_t badid, notresp; /* bad response counters */
-uint64_t rcodes[NS_RCODE_LAST + 1]; /* rcode counters */
-double dmin = 999999999.; /* minimum delay */
-double dmax = 0.; /* maximum delay */
-double dsum = 0.; /* delay sum */
-double dsumsq = 0.; /* square delay sum */
-
-/*
- * command line parameters
- */
-
-int edns0; /* EDNS0 DO flag */
-int ipversion = 0; /* IP version */
-int rate; /* rate in connections per second */
-int noreport; /* disable auto reporting */
-int report; /* delay between two reports */
-uint32_t range; /* randomization range */
-uint32_t maxrandom; /* maximum random value */
-int basecnt; /* base count */
-char *base[2]; /* bases */
-int gotnumreq = -1; /* numreq[0] was set */
-int numreq[2]; /* number of exchanges */
-int period; /* test period */
-int gotlosttime = -1; /* losttime[0] was set */
-double losttime[2] = {.5, 1.}; /* delay for a timeout */
-int gotmaxloss = -1; /* max{p}loss[0] was set */
-int maxloss[2]; /* maximum number of losses */
-double maxploss[2] = {0., 0.}; /* maximum percentage */
-char *localname; /* local address or interface */
-int aggressiveness = 1; /* back to back connections */
-int seeded; /* is a seed provided */
-unsigned int seed; /* randomization seed */
-char *templatefile; /* template file name */
-int rndoffset = -1; /* template offset (random) */
-char *diags; /* diagnostic selectors */
-char *servername; /* server */
-int ixann; /* ixann NXDOMAIN */
-int udp; /* use UDP in place of TCP */
-int minport, maxport, curport; /* port range */
-
-/*
- * global variables
- */
-
-struct sockaddr_storage localaddr; /* local socket address */
-struct sockaddr_storage serveraddr; /* server socket address */
-in_port_t port = 53; /* server socket port */
-
-int epoll_ifd, epoll_ofd; /* epoll file descriptors */
-#ifndef EVENTS_CNT
-#define EVENTS_CNT 16
-#endif
-struct epoll_event ievents[EVENTS_CNT]; /* polled input events */
-struct epoll_event oevents[EVENTS_CNT]; /* polled output events */
-int interrupted, fatal; /* to finish flags */
-
-uint8_t obuf[4098], ibuf[4098]; /* I/O buffers */
-char tbuf[4098]; /* template buffer */
-
-struct timespec boot; /* the date of boot */
-struct timespec last; /* the date of last connect */
-struct timespec due; /* the date of next connect */
-struct timespec dreport; /* the date of next reporting */
-struct timespec finished; /* the date of finish */
-
-/*
- * template
- */
-
-size_t length_query;
-uint8_t template_query[4096];
-size_t random_query;
-
-/*
- * threads
- */
-
-pthread_t master, connector, sender, receiver;
-
-/*
- * initialize data structures handling exchanges
- */
-
-void
-inits(void)
-{
- int idx;
-
- ISC_INIT(xconn, xconnl);
- ISC_INIT(xready, xreadyl);
- ISC_INIT(xsent, xsentl);
- ISC_INIT(xfree, xfreel);
-
- if ((pthread_mutex_init(&mtxconn, NULL) != 0) ||
- (pthread_mutex_init(&mtxsent, NULL) != 0) ||
- (pthread_mutex_init(&mtxfree, NULL) != 0)) {
- fprintf(stderr, "pthread_mutex_init failed\n");
- exit(1);
- }
-
- epoll_ifd = epoll_create(EVENTS_CNT);
- if (epoll_ifd < 0) {
- perror("epoll_create(input)");
- exit(1);
- }
- epoll_ofd = epoll_create(EVENTS_CNT);
- if (epoll_ofd < 0) {
- perror("epoll_create(output)");
- exit(1);
- }
-
- xlist = (struct exchange *) malloc(xlast * sizeof(struct exchange));
- if (xlist == NULL) {
- perror("malloc(exchanges)");
- exit(1);
- }
- memset(xlist, 0, xlast * sizeof(struct exchange));
-
- for (idx = 0; idx < xlast; idx++)
- xlist[idx].sock = xlist[idx].next = -1;
-}
-
-/*
- * build a TCP DNS QUERY
- */
-
-void
-build_template_query(void)
-{
- uint8_t *p = template_query;
- uint16_t v;
-
- /* flags */
- p += NS_OFF_FLAGS;
- v = NS_FLAG_RD;
- *p++ = v >> 8;
- *p++ = v & 0xff;
- /* qdcount */
- v = 1;
- *p++ = v >> 8;
- *p++ = v & 0xff;
- /* ancount */
- v = 0;
- *p++ = v >> 8;
- *p++ = v & 0xff;
- /* nscount */
- v = 0;
- *p++ = v >> 8;
- *p++ = v & 0xff;
- /* arcount */
- v = edns0;
- *p++ = v >> 8;
- *p++ = v & 0xff;
- /* icann.link (or ixann.link) */
- *p++ = 5;
- *p++ = 'i';
- if (ixann == 0)
- *p++ = 'c';
- else
- *p++ = 'x';
- *p++ = 'a';
- *p++ = 'n';
- *p++ = 'n';
- *p++ = 4;
- *p++ = 'l';
- *p++ = 'i';
- *p++ = 'n';
- *p++ = 'k';
- *p++ = 0;
- /* type A/AAAA */
- if (ipversion == 4)
- v = NS_TYPE_A;
- else
- v = NS_TYPE_AAAA;
- *p++ = v >> 8;
- *p++ = v & 0xff;
- /* class IN */
- v = NS_CLASS_IN;
- *p++ = v >> 8;
- *p++ = v & 0xff;
- /* EDNS0 OPT with DO */
- if (edns0) {
- /* root name */
- *p++ = 0;
- /* type OPT */
- v = NS_TYPE_OPT;
- *p++ = v >> 8;
- *p++ = v & 0xff;
- /* class UDP length */
- v = 4096;
- *p++ = v >> 8;
- *p++ = v & 0xff;
- /* extended rcode 0 */
- *p++ = 0;
- /* version 0 */
- *p++ = 0;
- /* extended flags DO */
- v = NS_XFLAG_DO;
- *p++ = v >> 8;
- *p++ = v & 0xff;
- /* rdlength */
- v = 0;
- *p++ = v >> 8;
- *p++ = v & 0xff;
- }
- /* length */
- length_query = p - template_query;
-}
-
-/*
- * get a TCP DNS client QUERY template
- * from the file given in the command line (-T<template-file>)
- * and rnd offset (-O<random-offset>)
- */
-
-void
-get_template_query(void)
-{
- uint8_t *p = template_query;
- int fd, cc, i, j;
-
- fd = open(templatefile, O_RDONLY);
- if (fd < 0) {
- fprintf(stderr, "open(%s): %s\n",
- templatefile, strerror(errno));
- exit(2);
- }
- cc = read(fd, tbuf, sizeof(tbuf));
- (void) close(fd);
- if (cc < 0) {
- fprintf(stderr, "read(%s): %s\n",
- templatefile, strerror(errno));
- exit(1);
- }
- if (cc < NS_OFF_QUESTION + 6) {
- fprintf(stderr,"file '%s' too small\n", templatefile);
- exit(2);
- }
- if (cc > 4096) {
- fprintf(stderr,"file '%s' too large\n", templatefile);
- exit(2);
- }
- j = 0;
- for (i = 0; i < cc; i++) {
- if (isspace((int) tbuf[i]))
- continue;
- if (!isxdigit((int) tbuf[i])) {
- fprintf(stderr,
- "illegal char[%d]='%c' in file '%s'\n",
- i, (int) tbuf[i], templatefile);
- exit(2);
- }
- tbuf[j] = tbuf[i];
- j++;
- }
- cc = j;
- if ((cc & 1) != 0) {
- fprintf(stderr,
- "odd number of hexadecimal digits in file '%s'\n",
- templatefile);
- exit(2);
- }
- length_query = cc >> 1;
- for (i = 0; i < cc; i += 2)
- (void) sscanf(tbuf + i, "%02hhx", &p[i >> 1]);
- if (rndoffset >= 0)
- random_query = (size_t) rndoffset;
- if (random_query > length_query) {
- fprintf(stderr,
- "random (at %zu) outside the template (length %zu)?\n",
- random_query, length_query);
- exit(2);
- }
-}
-
-#if 0
-/*
- * randomize the value of the given field:
- * - offset of the field
- * - random seed (used as it when suitable)
- * - returns the random value which was used
- */
-
-uint32_t
-randomize(size_t offset, uint32_t r)
-{
- uint32_t v;
-
- if (range == 0)
- return 0;
- if (range == UINT32_MAX)
- return r;
- if (maxrandom != 0)
- while (r >= maxrandom)
- r = (uint32_t) random();
- r %= range + 1;
- v = r;
- v += obuf[offset];
- obuf[offset] = v;
- if (v < 256)
- return r;
- v >>= 8;
- v += obuf[offset - 1];
- obuf[offset - 1] = v;
- if (v < 256)
- return r;
- v >>= 8;
- v += obuf[offset - 2];
- obuf[offset - 2] = v;
- if (v < 256)
- return r;
- v >>= 8;
- v += obuf[offset - 3];
- obuf[offset - 3] = v;
- return r;
-}
-#endif
-
-/*
- * flush/timeout connect
- */
-
-void
-flushconnect(void)
-{
- struct exchange *x;
- struct timespec now;
- int idx = xconn;
- int cnt = 10;
- double waited;
-
- if (clock_gettime(CLOCK_REALTIME, &now) < 0) {
- perror("clock_gettime(flushconnect)");
- fatal = 1;
- (void) pthread_kill(master, SIGTERM);
- return;
- }
-
- while (--cnt >= 0) {
- if (idx < 0)
- return;
- x = xlist + idx;
- idx = x->next;
- if (x->state != X_CONN)
- abort();
- /* check for a timed-out connection */
- waited = now.tv_sec - x->ts0.tv_sec;
- waited += (now.tv_nsec - x->ts0.tv_nsec) / 1e9;
- if (waited < losttime[0])
- return;
- /* garbage collect timed-out connections */
- if (pthread_mutex_lock(&mtxconn) != 0) {
- fprintf(stderr, "pthread_mutex_lock(flushconnect)");
- fatal = 1;
- (void) pthread_kill(master, SIGTERM);
- return;
- }
- ISC_REMOVE(xconnl, x);
- if (pthread_mutex_unlock(&mtxconn) != 0) {
- fprintf(stderr, "pthread_mutex_unlock(flushconnect)");
- fatal = 1;
- (void) pthread_kill(master, SIGTERM);
- return;
- }
- (void) close(x->sock);
- x->sock = -1;
- collconn++;
- if (pthread_mutex_lock(&mtxfree) != 0) {
- fprintf(stderr, "pthread_mutex_lock(flushconnect)");
- fatal = 1;
- (void) pthread_kill(master, SIGTERM);
- return;
- }
- x->state = X_FREE;
- ISC_INSERT(xfree, xfreel, x);
- if (pthread_mutex_unlock(&mtxfree) != 0) {
- fprintf(stderr, "pthread_mutex_unlock(flushconnect)");
- fatal = 1;
- (void) pthread_kill(master, SIGTERM);
- return;
- }
- }
-}
-
-/*
- * poll connected
- */
-
-void
-pollconnect(int topoll)
-{
- struct exchange *x;
- int evn, idx, err;
- socklen_t len = sizeof(int);
-
- for (evn = 0; evn < topoll; evn++) {
- idx = oevents[evn].data.fd;
- x = xlist + idx;
- if (x->state != X_CONN)
- continue;
- if (oevents[evn].events == 0)
- continue;
- if (pthread_mutex_lock(&mtxconn) != 0) {
- fprintf(stderr, "pthread_mutex_lock(pollconnect)");
- fatal = 1;
- (void) pthread_kill(master, SIGTERM);
- return;
- }
- ISC_REMOVE(xconnl, x);
- if (pthread_mutex_unlock(&mtxconn) != 0) {
- fprintf(stderr, "pthread_mutex_unlock(pollconnect)");
- fatal = 1;
- (void) pthread_kill(master, SIGTERM);
- return;
- }
- oevents[evn].events = 0;
- if ((getsockopt(x->sock, SOL_SOCKET, SO_ERROR,
- &err, &len) < 0) ||
- (err != 0)) {
- (void) close(x->sock);
- x->sock = -1;
- badconn++;
- if (pthread_mutex_lock(&mtxfree) != 0) {
- fprintf(stderr,
- "pthread_mutex_lock(pollconnect)");
- fatal = 1;
- (void) pthread_kill(master, SIGTERM);
- return;
- }
- x->state = X_FREE;
- ISC_INSERT(xfree, xfreel, x);
- if (pthread_mutex_unlock(&mtxfree) != 0) {
- fprintf(stderr,
- "pthread_mutex_unlock(pollconnect)");
- fatal = 1;
- (void) pthread_kill(master, SIGTERM);
- return;
- }
- continue;
- }
- x->state = X_READY;
- ISC_INSERT(xready, xreadyl, x);
- }
-}
-
-/*
- * send the TCP DNS QUERY
- */
-
-int
-sendquery(struct exchange *x)
-{
- ssize_t ret;
- size_t off;
-
- if (udp)
- off = 0;
- else {
- off = 2;
- /* message length */
- obuf[0] = length_query >> 8;
- obuf[1]= length_query & 0xff;
- }
- /* message from template */
- memcpy(obuf + off, template_query, length_query);
- /* ID */
- memcpy(obuf + off + NS_OFF_ID, &x->id, 2);
-#if 0
- /* random */
- if (random_query > 0)
- x->rnd = randomize(random_query + off, x->rnd);
-#endif
- /* timestamp */
- errno = 0;
- ret = clock_gettime(CLOCK_REALTIME, &x->ts2);
- if (ret < 0) {
- perror("clock_gettime(send)");
- fatal = 1;
- (void) pthread_kill(master, SIGTERM);
- return -errno;
- }
- ret = send(x->sock, obuf, length_query + off, 0);
- if ((size_t) ret == length_query + off)
- return 0;
- return -errno;
-}
-
-/*
- * poll ready and send
- */
-
-void
-pollsend(void)
-{
- struct exchange *x;
- int idx = xready;
- struct epoll_event ev;
-
- memset(&ev, 0, sizeof(ev));
- ev.events = EPOLLIN | EPOLLET | EPOLLONESHOT;
- for (;;) {
- if (idx < 0)
- return;
- x = xlist + idx;
- ev.data.fd = idx;
- idx = x->next;
- ISC_REMOVE(xreadyl, x);
- if (sendquery(x) < 0) {
- (void) close(x->sock);
- x->sock = -1;
- badsent++;
- if (pthread_mutex_lock(&mtxfree) != 0) {
- fprintf(stderr,
- "pthread_mutex_lock(pollsend)");
- fatal = 1;
- (void) pthread_kill(master, SIGTERM);
- return;
- }
- x->state = X_FREE;
- ISC_INSERT(xfree, xfreel, x);
- if (pthread_mutex_unlock(&mtxfree) != 0) {
- fprintf(stderr,
- "pthread_mutex_unlock(pollsend)");
- fatal = 1;
- (void) pthread_kill(master, SIGTERM);
- return;
- }
- continue;
- }
- xscount++;
- if (pthread_mutex_lock(&mtxsent) != 0) {
- fprintf(stderr, "pthread_mutex_lock(pollsend)");
- fatal = 1;
- (void) pthread_kill(master, SIGTERM);
- return;
- }
- x->state = X_SENT;
- ISC_INSERT(xsent, xsentl, x);
- if (pthread_mutex_unlock(&mtxsent) != 0) {
- fprintf(stderr, "pthread_mutex_unlock(pollsend)");
- fatal = 1;
- (void) pthread_kill(master, SIGTERM);
- return;
- }
- if (epoll_ctl(epoll_ifd, EPOLL_CTL_ADD, x->sock, &ev) < 0) {
- perror("epoll_ctl(add input)");
- fatal = 1;
- (void) pthread_kill(master, SIGTERM);
- return;
- }
- }
-}
-
-/*
- * receive a TCP DNS RESPONSE
- */
-
-void
-receiveresp(struct exchange *x)
-{
- struct timespec now;
- ssize_t cc;
- size_t off;
- uint16_t v;
- double delta;
-
- cc = recv(x->sock, ibuf, sizeof(ibuf), 0);
- if (cc < 0) {
- if ((errno == EAGAIN) ||
- (errno == EWOULDBLOCK) ||
- (errno == EINTR) ||
- (errno == ECONNRESET)) {
- recverr++;
- return;
- }
- perror("recv");
- fatal = 1;
- (void) pthread_kill(master, SIGTERM);
- return;
- }
- if (udp)
- off = 0;
- else
- off = 2;
- /* enforce a reasonable length */
- if ((size_t) cc < length_query + off) {
- tooshort++;
- return;
- }
- /* must match the ID */
- if (memcmp(ibuf + off + NS_OFF_ID, &x->id, 2) != 0) {
- badid++;
- return;
- }
- /* must be a response */
- memcpy(&v, ibuf + off + NS_OFF_FLAGS, 2);
- v = ntohs(v);
- if ((v & NS_FLAG_QR) == 0) {
- notresp++;
- return;
- }
- if (clock_gettime(CLOCK_REALTIME, &now) < 0) {
- perror("clock_gettime(receive)");
- fatal = 1;
- (void) pthread_kill(master, SIGTERM);
- return;
- }
- /* got it: update stats */
- xrcount++;
- x->ts3 = now;
- delta = x->ts3.tv_sec - x->ts2.tv_sec;
- delta += (x->ts3.tv_nsec - x->ts2.tv_nsec) / 1e9;
- if (delta < dmin)
- dmin = delta;
- if (delta > dmax)
- dmax = delta;
- dsum += delta;
- dsumsq += delta * delta;
- v &= NS_RCODE_MASK;
- if (v >= NS_RCODE_LAST)
- v = NS_RCODE_LAST;
- rcodes[v] += 1;
-}
-
-/*
- * flush/timeout receive
- */
-
-void
-flushrecv(void)
-{
- struct exchange *x;
- struct timespec now;
- int idx = xsent;
- int cnt = 5;
- double waited;
-
- if (clock_gettime(CLOCK_REALTIME, &now) < 0) {
- perror("clock_gettime(receive)");
- fatal = 1;
- (void) pthread_kill(master, SIGTERM);
- return;
- }
-
- while (--cnt >= 0) {
- if (idx < 0)
- return;
- x = xlist + idx;
- idx = x->next;
- if (x->state != X_SENT)
- abort();
- /* check for a timed-out exchange */
- waited = now.tv_sec - x->ts2.tv_sec;
- waited += (now.tv_nsec - x->ts2.tv_nsec) / 1e9;
- if (waited < losttime[1])
- return;
- /* garbage collect timed-out exchange */
- if (pthread_mutex_lock(&mtxsent) != 0) {
- fprintf(stderr, "pthread_mutex_lock(flushrecv)");
- fatal = 1;
- (void) pthread_kill(master, SIGTERM);
- return;
- }
- ISC_REMOVE(xsentl, x);
- if (pthread_mutex_unlock(&mtxsent) != 0) {
- fprintf(stderr, "pthread_mutex_unlock(flushrecv)");
- fatal = 1;
- (void) pthread_kill(master, SIGTERM);
- return;
- }
- (void) close(x->sock);
- x->sock = -1;
- collsent++;
- if (pthread_mutex_lock(&mtxfree) != 0) {
- fprintf(stderr, "pthread_mutex_lock(flushrecv)");
- fatal = 1;
- (void) pthread_kill(master, SIGTERM);
- return;
- }
- x->state = X_FREE;
- ISC_INSERT(xfree, xfreel, x);
- if (pthread_mutex_unlock(&mtxfree) != 0) {
- fprintf(stderr, "pthread_mutex_unlock(flushrecv)");
- fatal = 1;
- (void) pthread_kill(master, SIGTERM);
- return;
- }
- }
-}
-
-/*
- * poll receive
- */
-
-void
-pollrecv(int topoll)
-{
- struct exchange *x;
- int evn, idx;
-
- for (evn = 0; evn < topoll; evn++) {
- idx = ievents[evn].data.fd;
- x = xlist + idx;
- if (x->state != X_SENT)
- continue;
- if (ievents[evn].events == 0)
- continue;
- if (pthread_mutex_lock(&mtxsent) != 0) {
- fprintf(stderr, "pthread_mutex_lock(pollrecv)");
- fatal = 1;
- (void) pthread_kill(master, SIGTERM);
- return;
- }
- ISC_REMOVE(xsentl, x);
- if (pthread_mutex_unlock(&mtxsent) != 0) {
- fprintf(stderr, "pthread_mutex_unlock(pollrecv)");
- fatal = 1;
- (void) pthread_kill(master, SIGTERM);
- return;
- }
- receiveresp(x);
- ievents[evn].events = 0;
- (void) close(x->sock);
- x->sock = -1;
- if (pthread_mutex_lock(&mtxfree) != 0) {
- fprintf(stderr, "pthread_mutex_lock(pollrecv)");
- fatal = 1;
- (void) pthread_kill(master, SIGTERM);
- return;
- }
- x->state = X_FREE;
- ISC_INSERT(xfree, xfreel, x);
- if (pthread_mutex_unlock(&mtxfree) != 0) {
- fprintf(stderr, "pthread_mutex_unlock(pollrecv)");
- fatal = 1;
- (void) pthread_kill(master, SIGTERM);
- return;
- }
- }
-}
-
-/*
- * get the TCP DNS socket descriptor (IPv4)
- */
-
-int
-getsock4(void)
-{
- int sock;
- int flags;
-
- errno = 0;
- if (udp)
- sock = socket(PF_INET, SOCK_DGRAM, IPPROTO_UDP);
- else
- sock = socket(PF_INET, SOCK_STREAM, IPPROTO_TCP);
- if (sock < 0)
- return -errno;
-
- /* make the socket descriptor not blocking */
- flags = fcntl(sock, F_GETFL, 0);
- if (flags == -1) {
- (void) close(sock);
- return -errno;
- }
- if (fcntl(sock, F_SETFL, flags | O_NONBLOCK) == -1) {
- (void) close(sock);
- return -errno;
- }
-
- /* bind if wanted */
- if (localname != NULL) {
- if (curport) {
- struct sockaddr_in *l4;
-
- l4 = (struct sockaddr_in *) &localaddr;
- l4->sin_port = htons((uint16_t) curport);
- curport++;
- if (curport > maxport)
- curport = minport;
- }
- if (bind(sock,
- (struct sockaddr *) &localaddr,
- sizeof(struct sockaddr_in)) < 0) {
- (void) close(sock);
- return -errno;
- }
- }
-
- /* connect */
- if (connect(sock,
- (struct sockaddr *) &serveraddr,
- sizeof(struct sockaddr_in)) < 0) {
- if (errno != EINPROGRESS) {
- (void) close(sock);
- return -errno;
- }
- }
- return sock;
-}
-
-/*
- * connect the TCP DNS QUERY (IPv4)
- */
-
-int
-connect4(void)
-{
- struct exchange *x;
- int ret;
- int idx;
- struct epoll_event ev;
-
- ret = clock_gettime(CLOCK_REALTIME, &last);
- if (ret < 0) {
- perror("clock_gettime(connect)");
- fatal = 1;
- (void) pthread_kill(master, SIGTERM);
- return -errno;
- }
-
- if (xfree >= 0) {
- idx = xfree;
- x = xlist + idx;
- ret = pthread_mutex_lock(&mtxfree);
- if (ret != 0) {
- fprintf(stderr, "pthread_mutex_lock(connect4)");
- fatal = 1;
- (void) pthread_kill(master, SIGTERM);
- return -ret;
- }
- ISC_REMOVE(xfreel, x);
- ret = pthread_mutex_unlock(&mtxfree);
- if (ret != 0) {
- fprintf(stderr, "pthread_mutex_unlock(connect4)");
- fatal = 1;
- (void) pthread_kill(master, SIGTERM);
- return -ret;
- }
- } else if (xused < xlast) {
- idx = xused;
- x = xlist + idx;
- xused++;
- } else
- return -ENOMEM;
-
- if ((x->state != X_FREE) || (x->sock != -1))
- abort();
-
- memset(x, 0, sizeof(*x));
- memset(&ev, 0, sizeof(ev));
- x->next = -1;
- x->prev = NULL;
- x->ts0 = last;
- x->sock = getsock4();
- if (x->sock < 0) {
- int result = x->sock;
-
- x->sock = -1;
- ret = pthread_mutex_lock(&mtxfree);
- if (ret != 0) {
- fprintf(stderr, "pthread_mutex_lock(connect4)");
- fatal = 1;
- (void) pthread_kill(master, SIGTERM);
- return -ret;
- }
- ISC_INSERT(xfree, xfreel, x);
- ret = pthread_mutex_unlock(&mtxfree);
- if (ret != 0) {
- fprintf(stderr, "pthread_mutex_unlock(connect4)");
- fatal = 1;
- (void) pthread_kill(master, SIGTERM);
- return -ret;
- }
- return result;
- }
- ret = pthread_mutex_lock(&mtxconn);
- if (ret != 0) {
- fprintf(stderr, "pthread_mutex_lock(connect4)");
- fatal = 1;
- (void) pthread_kill(master, SIGTERM);
- return -ret;
- }
- x->state = X_CONN;
- ISC_INSERT(xconn, xconnl, x);
- ret = pthread_mutex_unlock(&mtxconn);
- if (ret != 0) {
- fprintf(stderr, "pthread_mutex_unlock(connect4)");
- fatal = 1;
- (void) pthread_kill(master, SIGTERM);
- return -ret;
- }
- ev.events = EPOLLOUT | EPOLLET | EPOLLONESHOT;
- ev.data.fd = idx;
- if (epoll_ctl(epoll_ofd, EPOLL_CTL_ADD, x->sock, &ev) < 0) {
- perror("epoll_ctl(add output)");
- fatal = 1;
- (void) pthread_kill(master, SIGTERM);
- return -errno;
- }
- x->order = xccount++;
- x->id = (uint16_t) random();
-#if 0
- if (random_query > 0)
- x->rnd = (uint32_t) random();
-#endif
- return idx;
-}
-
-/*
- * get the TCP DNS socket descriptor (IPv6)
- */
-
-int
-getsock6(void)
-{
- int sock;
- int flags;
-
- errno = 0;
- if (udp)
- sock = socket(PF_INET6, SOCK_DGRAM, IPPROTO_UDP);
- else
- sock = socket(PF_INET6, SOCK_STREAM, IPPROTO_TCP);
- if (sock < 0)
- return -errno;
-
- /* make the socket descriptor not blocking */
- flags = fcntl(sock, F_GETFL, 0);
- if (flags == -1) {
- (void) close(sock);
- return -errno;
- }
- if (fcntl(sock, F_SETFL, flags | O_NONBLOCK) == -1) {
- (void) close(sock);
- return -errno;
- }
-
- /* bind if wanted */
- if (localname != NULL) {
- if (curport) {
- struct sockaddr_in6 *l6;
-
- l6 = (struct sockaddr_in6 *) &localaddr;
- l6->sin6_port = htons((uint16_t) curport);
- curport++;
- if (curport > maxport)
- curport = minport;
- }
- if (bind(sock,
- (struct sockaddr *) &localaddr,
- sizeof(struct sockaddr_in6)) < 0) {
- (void) close(sock);
- return -errno;
- }
- }
-
- /* connect */
- if (connect(sock,
- (struct sockaddr *) &serveraddr,
- sizeof(struct sockaddr_in6)) < 0) {
- if (errno != EINPROGRESS) {
- (void) close(sock);
- return -errno;
- }
- }
- return sock;
-}
-
-/*
- * connect the TCP DNS QUERY (IPv6)
- */
-
-int
-connect6(void)
-{
- struct exchange *x;
- int ret;
- int idx;
- struct epoll_event ev;
-
- ret = clock_gettime(CLOCK_REALTIME, &last);
- if (ret < 0) {
- perror("clock_gettime(connect)");
- fatal = 1;
- (void) pthread_kill(master, SIGTERM);
- return -errno;
- }
-
- if (xfree >= 0) {
- idx = xfree;
- x = xlist + idx;
- ret = pthread_mutex_lock(&mtxfree);
- if (ret != 0) {
- fprintf(stderr, "pthread_mutex_lock(connect6)");
- fatal = 1;
- (void) pthread_kill(master, SIGTERM);
- return -ret;
- }
- ISC_REMOVE(xfreel, x);
- ret = pthread_mutex_unlock(&mtxfree);
- if (ret != 0) {
- fprintf(stderr, "pthread_mutex_unlock(connect6)");
- fatal = 1;
- (void) pthread_kill(master, SIGTERM);
- return -ret;
- }
- } else if (xused < xlast) {
- idx = xused;
- x = xlist + idx;
- xused++;
- } else
- return -ENOMEM;
-
- memset(x, 0, sizeof(*x));
- memset(&ev, 0, sizeof(ev));
- x->next = -1;
- x->prev = NULL;
- x->ts0 = last;
- x->sock = getsock6();
- if (x->sock < 0) {
- int result = x->sock;
-
- x->sock = -1;
- ret = pthread_mutex_lock(&mtxfree);
- if (ret != 0) {
- fprintf(stderr, "pthread_mutex_lock(connect6)");
- fatal = 1;
- (void) pthread_kill(master, SIGTERM);
- return -ret;
- }
- ISC_INSERT(xfree, xfreel, x);
- ret = pthread_mutex_unlock(&mtxfree);
- if (ret != 0) {
- fprintf(stderr, "pthread_mutex_unlock(connect6)");
- fatal = 1;
- (void) pthread_kill(master, SIGTERM);
- return -ret;
- }
- return result;
- }
- ret = pthread_mutex_lock(&mtxconn);
- if (ret != 0) {
- fprintf(stderr, "pthread_mutex_lock(connect6)");
- fatal = 1;
- (void) pthread_kill(master, SIGTERM);
- return -ret;
- }
- x->state = X_CONN;
- ISC_INSERT(xconn, xconnl, x);
- ret = pthread_mutex_unlock(&mtxconn);
- if (ret != 0) {
- fprintf(stderr, "pthread_mutex_unlock(connect6)");
- fatal = 1;
- (void) pthread_kill(master, SIGTERM);
- return -ret;
- }
- ev.events = EPOLLOUT | EPOLLET | EPOLLONESHOT;
- ev.data.fd = idx;
- if (epoll_ctl(epoll_ofd, EPOLL_CTL_ADD, x->sock, &ev) < 0) {
- perror("epoll_ctl(add output)");
- fatal = 1;
- (void) pthread_kill(master, SIGTERM);
- return -errno;
- }
- x->order = xccount++;
- x->id = (uint16_t) random();
-#if 0
- if (random_query > 0)
- x->rnd = (uint32_t) random();
-#endif
- return idx;
-}
-
-/*
- * connector working routine
- */
-
-void *
-connecting(void *dummy)
-{
- struct timespec now, ts;
- int ret;
- int i;
- char name[16];
-
- dummy = dummy;
-
- /* set conn-name */
- memset(name, 0, sizeof(name));
- ret = prctl(PR_GET_NAME, name, 0, 0, 0);
- if (ret < 0)
- perror("prctl(PR_GET_NAME)");
- else {
- memmove(name + 5, name, 11);
- memcpy(name, "conn-", 5);
- ret = prctl(PR_SET_NAME, name, 0, 0, 0);
- if (ret < 0)
- perror("prctl(PR_SET_NAME");
- }
-
- for (;;) {
- if (fatal)
- break;
-
- loops[1]++;
-
- /* compute the delay for the next connection */
- if (clock_gettime(CLOCK_REALTIME, &now) < 0) {
- perror("clock_gettime(connecting)");
- fatal = 1;
- (void) pthread_kill(master, SIGTERM);
- break;
- }
-
- due = last;
- if (rate == 1)
- due.tv_sec += 1;
- else
- due.tv_nsec += 1010000000 / rate;
- while (due.tv_nsec >= 1000000000) {
- due.tv_sec += 1;
- due.tv_nsec -= 1000000000;
- }
- ts = due;
- ts.tv_sec -= now.tv_sec;
- ts.tv_nsec -= now.tv_nsec;
- while (ts.tv_nsec < 0) {
- ts.tv_sec -= 1;
- ts.tv_nsec += 1000000000;
- }
- /* the connection was already due? */
- if (ts.tv_sec < 0) {
- ts.tv_sec = ts.tv_nsec = 0;
- lateconn++;
- } else {
- /* wait until */
- ret = clock_nanosleep(CLOCK_REALTIME, 0, &ts, NULL);
- if (ret != 0) {
- if (ret == EINTR)
- continue;
- fprintf(stderr, "clock_nanosleep: %s\n",
- strerror(ret));
- fatal = 1;
- (void) pthread_kill(master, SIGTERM);
- break;
- }
- }
-
- /* compute how many connections to open */
- if (clock_gettime(CLOCK_REALTIME, &now) < 0) {
- perror("clock_gettime(connecting)");
- fatal = 1;
- (void) pthread_kill(master, SIGTERM);
- break;
- }
-
- if ((now.tv_sec > due.tv_sec) ||
- ((now.tv_sec == due.tv_sec) &&
- (now.tv_nsec >= due.tv_nsec))) {
- double toconnect;
-
- toconnect = (now.tv_nsec - due.tv_nsec) / 1e9;
- toconnect += now.tv_sec - due.tv_sec;
- toconnect *= rate;
- toconnect++;
- if (toconnect > (double) aggressiveness)
- i = aggressiveness;
- else
- i = (int) toconnect;
- compconn += i;
- /* open connections */
- while (i-- > 0) {
- if (ipversion == 4)
- ret = connect4();
- else
- ret = connect6();
- if (ret < 0) {
- if ((ret == -EAGAIN) ||
- (ret == -EWOULDBLOCK) ||
- (ret == -ENOBUFS) ||
- (ret == -ENFILE) ||
- (ret == -EMFILE) ||
- (ret == -EADDRNOTAVAIL) ||
- (ret == -ENOMEM))
- locallimit++;
- fprintf(stderr,
- "connect: %s\n",
- strerror(-ret));
- break;
- }
- }
- } else
- /* there was no connection to open */
- shortwait[0]++;
- }
-
- return NULL;
-}
-
-/*
- * sender working routine
- */
-
-void *
-sending(void *dummy)
-{
- int ret;
- int nfds;
- char name[16];
-
- dummy = dummy;
-
- /* set send-name */
- memset(name, 0, sizeof(name));
- ret = prctl(PR_GET_NAME, name, 0, 0, 0);
- if (ret < 0)
- perror("prctl(PR_GET_NAME)");
- else {
- memmove(name + 5, name, 11);
- memcpy(name, "send-", 5);
- ret = prctl(PR_SET_NAME, name, 0, 0, 0);
- if (ret < 0)
- perror("prctl(PR_SET_NAME");
- }
-
- for (;;) {
- if (fatal)
- break;
-
- loops[2]++;
-
- /* epoll_wait() */
- memset(oevents, 0, sizeof(oevents));
- nfds = epoll_wait(epoll_ofd, oevents, EVENTS_CNT, 1);
- if (nfds < 0) {
- if (errno == EINTR)
- continue;
- perror("epoll_wait(output)");
- fatal = 1;
- (void) pthread_kill(master, SIGTERM);
- break;
- }
-
- /* connection(s) to finish */
- if (nfds == 0)
- shortwait[1]++;
- else
- pollconnect(nfds);
- if (fatal)
- break;
- flushconnect();
- if (fatal)
- break;
-
- /* packet(s) to send */
- pollsend();
- if (fatal)
- break;
- }
-
- return NULL;
-}
-
-/*
- * receiver working routine
- */
-
-void *
-receiving(void *dummy)
-{
- int ret;
- int nfds;
- char name[16];
-
- dummy = dummy;
-
- /* set recv-name */
- memset(name, 0, sizeof(name));
- ret = prctl(PR_GET_NAME, name, 0, 0, 0);
- if (ret < 0)
- perror("prctl(PR_GET_NAME)");
- else {
- memmove(name + 5, name, 11);
- memcpy(name, "recv-", 5);
- ret = prctl(PR_SET_NAME, name, 0, 0, 0);
- if (ret < 0)
- perror("prctl(PR_SET_NAME");
- }
-
- for (;;) {
- if (fatal)
- break;
-
- loops[3]++;
-
- /* epoll_wait() */
- memset(ievents, 0, sizeof(ievents));
- nfds = epoll_wait(epoll_ifd, ievents, EVENTS_CNT, 1);
- if (nfds < 0) {
- if (errno == EINTR)
- continue;
- perror("epoll_wait(input)");
- fatal = 1;
- (void) pthread_kill(master, SIGTERM);
- break;
- }
-
- /* packet(s) to receive */
- if (nfds == 0)
- shortwait[2]++;
- else
- pollrecv(nfds);
- if (fatal)
- break;
- flushrecv();
- if (fatal)
- break;
- }
-
- return NULL;
-}
-
-/*
- * get the server socket address from the command line:
- * - flags: inherited from main, 0 or AI_NUMERICHOST (for literals)
- */
-
-void
-getserveraddr(const int flags)
-{
- struct addrinfo hints, *res;
- int ret;
-
- memset(&hints, 0, sizeof(hints));
- if (ipversion == 4)
- hints.ai_family = AF_INET;
- else
- hints.ai_family = AF_INET6;
- if (udp) {
- hints.ai_socktype = SOCK_DGRAM;
- hints.ai_protocol = IPPROTO_UDP;
- } else {
- hints.ai_socktype = SOCK_STREAM;
- hints.ai_protocol = IPPROTO_TCP;
- }
- hints.ai_flags = AI_ADDRCONFIG | flags;
-
- ret = getaddrinfo(servername, NULL, &hints, &res);
- if (ret != 0) {
- fprintf(stderr, "bad server=%s: %s\n",
- servername, gai_strerror(ret));
- exit(2);
- }
- if (res->ai_next != NULL) {
- fprintf(stderr, "ambiguous server=%s\n", servername);
- exit(2);
- }
- memcpy(&serveraddr, res->ai_addr, res->ai_addrlen);
- freeaddrinfo(res);
- if (ipversion == 4)
- ((struct sockaddr_in *)&serveraddr)->sin_port = htons(port);
- else
- ((struct sockaddr_in6 *)&serveraddr)->sin6_port = htons(port);
-}
-
-/*
- * get the local socket address from the command line
- */
-
-void
-getlocaladdr(void)
-{
- struct addrinfo hints, *res;
- int ret;
-
- memset(&hints, 0, sizeof(hints));
- if (ipversion == 4)
- hints.ai_family = AF_INET;
- else
- hints.ai_family = AF_INET6;
- if (udp) {
- hints.ai_socktype = SOCK_DGRAM;
- hints.ai_protocol = IPPROTO_UDP;
- } else {
- hints.ai_socktype = SOCK_STREAM;
- hints.ai_protocol = IPPROTO_TCP;
- }
- hints.ai_flags = AI_ADDRCONFIG;
-
- ret = getaddrinfo(localname, NULL, &hints, &res);
- if (ret != 0) {
- fprintf(stderr,
- "bad -l<local-addr=%s>: %s\n",
- localname,
- gai_strerror(ret));
- exit(2);
- }
- /* refuse multiple addresses */
- if (res->ai_next != NULL) {
- fprintf(stderr,
- "ambiguous -l<local-addr=%s>\n",
- localname);
- exit(2);
- }
- memcpy(&localaddr, res->ai_addr, res->ai_addrlen);
- freeaddrinfo(res);
-}
-
-/*
- * intermediate reporting
- * (note: an in-transit packet can be reported as lost)
- */
-
-void
-reporting(void)
-{
- dreport.tv_sec += report;
-
- if (xccount != 0) {
- printf("connect: %llu, sent: %llu, received: %llu "
- "(embryonics: %lld, drops: %lld)",
- (unsigned long long) xccount,
- (unsigned long long) xscount,
- (unsigned long long) xrcount,
- (long long) (xccount - xscount),
- (long long) (xscount - xrcount));
- if (xrcount != 0) {
- double avg;
-
- avg = dsum / xrcount;
- printf(" average: %.3f ms", avg * 1e3);
- }
- }
- printf("\n");
-}
-
-/*
- * SIGCHLD handler
- */
-
-void
-reapchild(int sig)
-{
- int status;
-
- sig = sig;
- while (wait3(&status, WNOHANG, NULL) > 0)
- /* continue */;
-}
-
-/*
- * SIGINT handler
- */
-
-void
-interrupt(int sig)
-{
- sig = sig;
- interrupted = 1;
-}
-
-/*
- * SIGTERM handler
- */
-
-void
-terminate(int sig)
-{
- sig = sig;
- fatal = 1;
-}
-
-/*
- * '-v' handler
- */
-
-void
-version(void)
-{
- fprintf(stderr, "version 0.01\n");
-}
-
-/*
- * usage (from the wiki)
- */
-
-void
-usage(void)
-{
- fprintf(stderr, "%s",
-"perftcpdns [-huvX0] [-4|-6] [-r<rate>] [-t<report>] [-p<test-period>]\n"
-" [-n<num-request>]* [-d<lost-time>]* [-D<max-loss>]* [-T<template-file>]\n"
-" [-l<local-addr>] [-L<local-port>]* [-a<aggressiveness>] [-s<seed>]\n"
-" [-M<memory>] [-x<diagnostic-selector>] [-P<port>] server\n"
-"\f\n"
-"The server argument is the name/address of the DNS server to contact.\n"
-"\n"
-"Options:\n"
-"-0: Add EDNS0 option with DO flag.\n"
-"-4: TCP/IPv4 operation (default). This is incompatible with the -6 option.\n"
-"-6: TCP/IPv6 operation. This is incompatible with the -4 option.\n"
-"-a<aggressiveness>: When the target sending rate is not yet reached,\n"
-" control how many connections are initiated before the next pause.\n"
-"-d<lost-time>: Specify the time after which a connection or a query is\n"
-" treated as having been lost. The value is given in seconds and\n"
-" may contain a fractional component. The default is 1 second.\n"
-"-h: Print this help.\n"
-"-l<local-addr>: Specify the local hostname/address to use when\n"
-" communicating with the server.\n"
-"-L<local-port>: Specify the (minimal and maximal) local port number\n"
-"-M<memory>: Size of the tables (default 60000)\n"
-"-P<port>: Specify an alternate (i.e., not 53) port\n"
-"-r<rate>: Initiate <rate> TCP DNS connections per second. A periodic\n"
-" report is generated showing the number of exchanges which were not\n"
-" completed, as well as the average response latency. The program\n"
-" continues until interrupted, at which point a final report is\n"
-" generated.\n"
-"-s<seed>: Specify the seed for randomization, making it repeatable.\n"
-"-t<report>: Delay in seconds between two periodic reports.\n"
-"-T<template-file>: The name of a file containing the template to use\n"
-" as a stream of hexadecimal digits.\n"
-"-u: Use UDP in place of TCP.\n"
-"-v: Report the version number of this program.\n"
-"-X: change default template to get NXDOMAIN responses.\n"
-"-x<diagnostic-selector>: Include extended diagnostics in the output.\n"
-" <diagnostic-selector> is a string of single-keywords specifying\n"
-" the operations for which verbose output is desired. The selector\n"
-" keyletters are:\n"
-" * 'a': print the decoded command line arguments\n"
-" * 'e': print the exit reason\n"
-" * 'i': print rate processing details\n"
-" * 'T': when finished, print templates\n"
-"\n"
-"Stopping conditions:\n"
-"-D<max-loss>: Abort the test if more than <max-loss> connections or\n"
-" queries have been lost. If <max-loss> includes the suffix '%', it\n"
-" specifies a maximum percentage of losses before stopping.\n"
-" In this case, testing of the threshold begins after 10\n"
-" connections/responses have been expected to be accepted/received.\n"
-"-n<num-request>: Initiate <num-request> transactions. No report is\n"
-" generated until all transactions have been initiated/waited-for,\n"
-" after which a report is generated and the program terminates.\n"
-"-p<test-period>: Send requests for the given test period, which is\n"
-" specified in the same manner as -d. This can be used as an\n"
-" alternative to -n, or both options can be given, in which case the\n"
-" testing is completed when either limit is reached.\n"
-"\n"
-"Errors:\n"
-"- locallimit: reached to local system limits when sending a message.\n"
-"- badconn: connection failed (from getsockopt(SO_ERROR))\n"
-"- collconn: connect() timed out\n"
-"- badsent: send() failed\n"
-"- callsent: timed out waiting from a response\n"
-"- recverr: recv() system call failed\n"
-"- tooshort: received a too short message\n"
-"- badid: the id mismatches between the query and the response\n"
-"- notresp: doesn't receive a response\n"
-"Rate stats:\n"
-"- loops: number of thread loop iterations\n"
-"- shortwait: no direct activity in a thread iteration\n"
-"- compconn: computed number of connect() calls\n"
-"- lateconn: connect() already dued when computing delay to the next one\n"
-"\n"
-"Exit status:\n"
-"The exit status is:\n"
-"0 on complete success.\n"
-"1 for a general error.\n"
-"2 if an error is found in the command line arguments.\n"
-"3 if there are no general failures in operation, but one or more\n"
-" exchanges are not successfully completed.\n");
-}
-
-/*
- * main function / entry point
- */
-
-int
-main(const int argc, char * const argv[])
-{
- int opt, flags = 0, ret, i;
- long long r;
- char *pc;
- double d;
- extern char *optarg;
- extern int optind;
-
-#define OPTIONS "hv46u0XM:r:t:R:b:n:p:d:D:l:L:a:s:T:O:x:P:"
-
- /* decode options */
- while ((opt = getopt(argc, argv, OPTIONS)) != -1)
- switch (opt) {
- case 'h':
- usage();
- exit(0);
-
- case 'u':
- udp = 1;
- break;
-
- case 'v':
- version();
- exit(0);
-
- case '0':
- edns0 = 1;
- break;
-
- case '4':
- if (ipversion == 6) {
- fprintf(stderr, "IP version already set to 6\n");
- usage();
- exit(2);
- }
- ipversion = 4;
- break;
-
- case '6':
- if (ipversion == 4) {
- fprintf(stderr, "IP version already set to 4\n");
- usage();
- exit(2);
- }
- ipversion = 6;
- break;
-
- case 'X':
- ixann = 1;
- break;
-
- case 'M':
- xlast = atoi(optarg);
- if (xlast <= 1000) {
- fprintf(stderr, "memory must be greater than 1000\n");
- usage();
- exit(2);
- }
- break;
-
- case 'r':
- rate = atoi(optarg);
- if (rate <= 0) {
- fprintf(stderr, "rate must be a positive integer\n");
- usage();
- exit(2);
- }
- break;
-
- case 't':
- report = atoi(optarg);
- if (report <= 0) {
- fprintf(stderr, "report must be a positive integer\n");
- usage();
- exit(2);
- }
- break;
-
- case 'R':
- r = atoll(optarg);
- if (r < 0) {
- fprintf(stderr,
- "range must not be a negative integer\n");
- usage();
- exit(2);
- }
- range = (uint32_t) r;
- if ((range != 0) && (range != UINT32_MAX)) {
- uint32_t s = range + 1;
- uint64_t b = UINT32_MAX + 1, m;
-
- m = (b / s) * s;
- if (m == b)
- maxrandom = 0;
- else
- maxrandom = (uint32_t) m;
- }
- break;
-
- case 'b':
- if (basecnt > 1) {
- fprintf(stderr, "too many bases\n");
- usage();
- exit(2);
- }
- base[basecnt] = optarg;
- /* decodebase(); */
- basecnt++;
- break;
-
- case 'n':
- noreport = 1;
- gotnumreq++;
- if (gotnumreq > 1) {
- fprintf(stderr, "too many num-request's\n");
- usage();
- exit(2);
- }
- numreq[gotnumreq] = atoi(optarg);
- if ((numreq[gotnumreq] < 0) ||
- ((numreq[gotnumreq] == 0) && (gotnumreq == 1))) {
- fprintf(stderr,
- "num-request must be a positive integer\n");
- usage();
- exit(2);
- }
- break;
-
- case 'p':
- noreport = 1;
- period = atoi(optarg);
- if (period <= 0) {
- fprintf(stderr,
- "test-period must be a positive integer\n");
- usage();
- exit(2);
- }
- break;
-
- case 'd':
- gotlosttime++;
- if (gotlosttime > 1) {
- fprintf(stderr, "too many lost-time's\n");
- usage();
- exit(2);
- }
- d = atof(optarg);
- if ((d < 0.) || ((d == 0.) && (gotlosttime == 1))) {
- fprintf(stderr,
- "lost-time must be a positive number\n");
- usage();
- exit(2);
- }
- if (d > 0.)
- losttime[gotlosttime] = d;
- break;
-
- case 'D':
- noreport = 1;
- gotmaxloss++;
- if (gotmaxloss > 1) {
- fprintf(stderr, "too many max-loss's\n");
- usage();
- exit(2);
- }
- pc = strchr(optarg, '%');
- if (pc != NULL) {
- *pc = '\0';
- maxploss[gotmaxloss] = atof(optarg);
- if ((maxploss[gotmaxloss] < 0) ||
- (maxploss[gotmaxloss] >= 100)) {
- fprintf(stderr,
- "invalid max-loss percentage\n");
- usage();
- exit(2);
- }
- } else {
- maxloss[gotmaxloss] = atoi(optarg);
- if ((maxloss[gotmaxloss] < 0) ||
- ((maxloss[gotmaxloss] == 0) &&
- (gotmaxloss == 1))) {
- fprintf(stderr,
- "max-loss must be a "
- "positive integer\n");
- usage();
- exit(2);
- }
- }
- break;
-
- case 'l':
- localname = optarg;
- break;
-
- case 'L':
- i = atoi(optarg);
- if ((i <= 0) || (i >65535)) {
- fprintf(stderr,
- "local-port must be a small positive integer\n");
- usage();
- exit(2);
- }
- if (maxport != 0) {
- fprintf(stderr, "too many local-port's\n");
- usage();
- exit(2);
- }
- if (curport == 0)
- minport = curport = i;
- else
- maxport = i;
- break;
-
- case 'a':
- aggressiveness = atoi(optarg);
- if (aggressiveness <= 0) {
- fprintf(stderr,
- "aggressiveness must be a positive integer\n");
- usage();
- exit(2);
- }
- break;
-
- case 's':
- seeded = 1;
- seed = (unsigned int) atol(optarg);
- break;
-
- case 'T':
- if (templatefile != NULL) {
- fprintf(stderr, "template-file is already set\n");
- usage();
- exit(2);
- }
- templatefile = optarg;
- break;
-
- case 'O':
- rndoffset = atoi(optarg);
- if (rndoffset < 14) {
- fprintf(stderr,
- "random-offset must be greater than 14\n");
- usage();
- exit(2);
- }
- break;
-
- case 'x':
- diags = optarg;
- break;
-
- case 'P':
- i = atoi(optarg);
- if ((i <= 0) || (i > 65535)) {
- fprintf(stderr,
- "port must be a positive short integer\n");
- usage();
- exit(2);
- }
- port = (in_port_t) i;
- break;
-
- default:
- usage();
- exit(2);
- }
-
- /* adjust some global variables */
- if (ipversion == 0)
- ipversion = 4;
- if (rate == 0)
- rate = 100;
- if (xlast == 0)
- xlast = 60000;
- if (noreport == 0)
- report = 1;
- if ((curport != 0) && (maxport == 0))
- maxport = 65535;
-
- /* when required, print the internal view of the command line */
- if ((diags != NULL) && (strchr(diags, 'a') != NULL)) {
- if (udp)
- printf("UDP ");
- printf("IPv%d", ipversion);
- printf(" rate=%d", rate);
- if (edns0 != 0)
- printf(" EDNS0");
- if (report != 0)
- printf(" report=%d", report);
- if (range != 0) {
- if (strchr(diags, 'r') != NULL)
- printf(" range=0..%d [0x%x]",
- range,
- (unsigned int) maxrandom);
- else
- printf(" range=0..%d", range);
- }
- if (basecnt != 0)
- for (i = 0; i < basecnt; i++)
- printf(" base[%d]='%s'", i, base[i]);
- if (gotnumreq >= 0) {
- if ((numreq[0] == 0) && (numreq[1] != 0))
- printf(" num-request=*,%d", numreq[1]);
- if ((numreq[0] != 0) && (numreq[1] == 0))
- printf(" num-request=%d,*", numreq[0]);
- if ((numreq[0] != 0) && (numreq[1] != 0))
- printf(" num-request=%d,%d",
- numreq[0], numreq[1]);
- }
- if (period != 0)
- printf(" test-period=%d", period);
- printf(" lost-time=%g,%g", losttime[0], losttime[1]);
- if (gotmaxloss == 0) {
- if (maxloss[0] != 0)
- printf(" max-loss=%d,*", maxloss[0]);
- if (maxploss[0] != 0.)
- printf(" max-loss=%2.2f%%,*", maxploss[0]);
- } else if (gotmaxloss == 1) {
- if (maxloss[0] != 0)
- printf(" max-loss=%d,", maxloss[0]);
- else if (maxploss[0] != 0.)
- printf(" max-loss=%2.2f%%,", maxploss[0]);
- else
- printf(" max-loss=*,");
- if (maxloss[1] != 0)
- printf("%d", maxloss[1]);
- else if (maxploss[1] != 0.)
- printf("%2.2f%%", maxploss[1]);
- else
- printf("*");
- }
- printf(" aggressiveness=%d", aggressiveness);
- if (seeded)
- printf(" seed=%u", seed);
- if (templatefile != NULL)
- printf(" template-file='%s'", templatefile);
- else if (ixann != 0)
- printf(" Xflag");
- if (rndoffset >= 0)
- printf(" rnd-offset=%d", rndoffset);
- printf(" diagnotic-selectors='%s'", diags);
- printf("\n");
- }
-
- /* check local address options */
- if ((localname == NULL) && (curport != 0)) {
- fprintf(stderr,
- "-l<local-addr> must be set to use -L<local-port>\n");
- usage();
- exit(2);
- }
-
- /* check template file options */
- if ((templatefile == NULL) && (rndoffset >= 0)) {
- fprintf(stderr,
- "-T<template-file> must be set to "
- "use -O<random-offset>\n");
- usage();
- exit(2);
- }
-
- /* check various template file(s) and other condition(s) options */
- if ((templatefile != NULL) && (range > 0) && (rndoffset < 0)) {
- fprintf(stderr,
- "-O<random-offset> must be set when "
- "-T<template-file> and -R<range> are used\n");
- usage();
- exit(2);
- }
-
- /* get the server argument */
- if (optind < argc - 1) {
- fprintf(stderr, "extra arguments?\n");
- usage();
- exit(2);
- }
- if (optind == argc - 1)
- servername = argv[optind];
-
- /* handle the local '-l' address/interface */
- if (localname != NULL) {
- /* given */
- getlocaladdr();
- if ((diags != NULL) && (strchr(diags, 'a') != NULL)) {
- printf("local-addr='%s'", localname);
- if (curport != 0)
- printf(" local-port='%d..%d'",
- minport, maxport);
- printf("\n");
- }
- }
-
- /* get the server socket address */
- if (servername == NULL) {
- fprintf(stderr, "server is required\n");
- usage();
- exit(2);
- }
- getserveraddr(flags);
-
- /* finish local/server socket address stuff and print it */
- if ((diags != NULL) && (strchr(diags, 'a') != NULL))
- printf("server='%s'\n", servername);
- if ((localname != NULL) &&
- (diags != NULL) && (strchr(diags, 'a') != NULL)) {
- char addr[NI_MAXHOST];
-
- ret = getnameinfo((struct sockaddr *) &localaddr,
- sizeof(localaddr),
- addr,
- NI_MAXHOST,
- NULL,
- 0,
- NI_NUMERICHOST);
- if (ret != 0) {
- fprintf(stderr,
- "can't get the local address: %s\n",
- gai_strerror(ret));
- exit(1);
- }
- printf("local address='%s'\n", addr);
- }
-
- /* initialize exchange structures */
- inits();
-
- /* get the socket descriptor and template(s) */
- if (templatefile == NULL)
- build_template_query();
- else
- get_template_query();
-
- /* boot is done! */
- if (clock_gettime(CLOCK_REALTIME, &boot) < 0) {
- perror("clock_gettime(boot)");
- exit(1);
- }
-
- /* compute the next intermediate reporting date */
- if (report != 0) {
- dreport.tv_sec = boot.tv_sec + report;
- dreport.tv_nsec = boot.tv_nsec;
- }
-
- /* seed the random generator */
- if (seeded == 0)
- seed = (unsigned int) (boot.tv_sec + boot.tv_nsec);
- srandom(seed);
-
- /* required only before the interrupted flag check */
- (void) signal(SIGINT, interrupt);
- (void) signal(SIGTERM, terminate);
-
- /* threads */
- master = pthread_self();
- ret = pthread_create(&connector, NULL, connecting, NULL);
- if (ret != 0) {
- fprintf(stderr, "pthread_create: %s\n", strerror(ret));
- exit(1);
- }
- ret = pthread_create(&sender, NULL, sending, NULL);
- if (ret != 0) {
- fprintf(stderr, "pthread_create: %s\n", strerror(ret));
- exit(1);
- }
- ret = pthread_create(&receiver, NULL, receiving, NULL);
- if (ret != 0) {
- fprintf(stderr, "pthread_create: %s\n", strerror(ret));
- exit(1);
- }
-
- /* main loop */
- for (;;) {
- struct timespec now, ts;
-
- /* immediate loop exit conditions */
- if (interrupted) {
- if ((diags != NULL) && (strchr(diags, 'e') != NULL))
- printf("interrupted\n");
- break;
- }
- if (fatal) {
- if ((diags != NULL) && (strchr(diags, 'e') != NULL))
- printf("got a fatal error\n");
- break;
- }
-
- loops[0]++;
-
- /* get the date and use it */
- if (clock_gettime(CLOCK_REALTIME, &now) < 0) {
- perror("clock_gettime(now)");
- fatal = 1;
- continue;
- }
- if ((period != 0) &&
- ((boot.tv_sec + period < now.tv_sec) ||
- ((boot.tv_sec + period == now.tv_sec) &&
- (boot.tv_nsec < now.tv_nsec)))) {
- if ((diags != NULL) && (strchr(diags, 'e') != NULL))
- printf("reached test-period\n");
- break;
- }
- if ((report != 0) &&
- ((dreport.tv_sec < now.tv_sec) ||
- ((dreport.tv_sec == now.tv_sec) &&
- (dreport.tv_nsec < now.tv_nsec))))
- reporting();
-
- /* check receive loop exit conditions */
- if ((numreq[0] != 0) && ((int) xccount >= numreq[0])) {
- if ((diags != NULL) && (strchr(diags, 'e') != NULL))
- printf("reached num-connection\n");
- break;
- }
- if ((numreq[1] != 0) && ((int) xscount >= numreq[1])) {
- if ((diags != NULL) && (strchr(diags, 'e') != NULL))
- printf("reached num-query\n");
- break;
- }
- if ((maxloss[0] != 0) &&
- ((int) (xccount - xscount) > maxloss[0])) {
- if ((diags != NULL) && (strchr(diags, 'e') != NULL))
- printf("reached max-loss "
- "(connection/absolute)\n");
- break;
- }
- if ((maxloss[1] != 0) &&
- ((int) (xscount - xrcount) > maxloss[1])) {
- if ((diags != NULL) && (strchr(diags, 'e') != NULL))
- printf("reached max-loss "
- "(query/absolute)\n");
- break;
- }
- if ((maxploss[0] != 0.) &&
- (xccount > 10) &&
- (((100. * (xccount - xscount)) / xccount) > maxploss[1])) {
- if ((diags != NULL) && (strchr(diags, 'e') != NULL))
- printf("reached max-loss "
- "(connection/percent)\n");
- break;
- }
- if ((maxploss[1] != 0.) &&
- (xscount > 10) &&
- (((100. * (xscount - xrcount)) / xscount) > maxploss[1])) {
- if ((diags != NULL) && (strchr(diags, 'e') != NULL))
- printf("reached max-loss "
- "(query/percent)\n");
- break;
- }
-
- /* waiting 1ms */
- memset(&ts, 0, sizeof(ts));
- ts.tv_nsec = 1000000;
- (void) clock_nanosleep(CLOCK_REALTIME, 0, &ts, NULL);
- }
-
- /* after main loop: finished */
- if (clock_gettime(CLOCK_REALTIME, &finished) < 0)
- perror("clock_gettime(finished)");
-
- /* threads */
- (void) pthread_cancel(connector);
- (void) pthread_cancel(sender);
- (void) pthread_cancel(receiver);
-
- /* main statictics */
- printf("connect: %llu, sent: %llu, received: %llu\n",
- (unsigned long long) xccount,
- (unsigned long long) xscount,
- (unsigned long long) xrcount);
- printf("embryonics: %lld (%.1f%%)\n",
- (long long) (xccount - xscount),
- (100. * (xccount - xscount)) / xccount);
- printf("drops: %lld (%.1f%%)\n",
- (long long) (xscount - xrcount),
- (100. * (xscount - xrcount)) / xscount);
- printf("total losses: %lld (%.1f%%)\n",
- (long long) (xccount - xrcount),
- (100. * (xccount - xrcount)) / xccount);
- printf("local limits: %llu, bad connects: %llu, "
- "connect timeouts: %llu\n",
- (unsigned long long) locallimit,
- (unsigned long long) badconn,
- (unsigned long long) collconn);
- printf("bad sends: %llu, bad recvs: %llu, recv timeouts: %llu\n",
- (unsigned long long) badsent,
- (unsigned long long) recverr,
- (unsigned long long) collsent);
- printf("too shorts: %llu, bad IDs: %llu, not responses: %llu\n",
- (unsigned long long) tooshort,
- (unsigned long long) badid,
- (unsigned long long) notresp);
- printf("rcode counters:\n noerror: %llu, formerr: %llu, "
- "servfail: %llu\n "
- "nxdomain: %llu, noimp: %llu, refused: %llu, others: %llu\n",
- (unsigned long long) rcodes[NS_RCODE_NOERROR],
- (unsigned long long) rcodes[NS_RCODE_FORMERR],
- (unsigned long long) rcodes[NS_RCODE_SERVFAIL],
- (unsigned long long) rcodes[NS_RCODE_NXDOMAIN],
- (unsigned long long) rcodes[NS_RCODE_NOIMP],
- (unsigned long long) rcodes[NS_RCODE_REFUSED],
- (unsigned long long) rcodes[NS_RCODE_LAST]);
-
- /* print the rates */
- if (finished.tv_sec != 0) {
- double dall, erate[3];
-
- dall = (finished.tv_nsec - boot.tv_nsec) / 1e9;
- dall += finished.tv_sec - boot.tv_sec;
- erate[0] = xccount / dall;
- erate[1] = xscount / dall;
- erate[2] = xrcount / dall;
- printf("rates: %.0f,%.0f,%.0f (target %d)\n",
- erate[0], erate[1], erate[2], rate);
- }
-
- /* rate processing instrumentation */
- if ((diags != NULL) && (strchr(diags, 'i') != NULL)) {
- printf("loops: %llu,%llu,%llu,%llu\n",
- (unsigned long long) loops[0],
- (unsigned long long) loops[1],
- (unsigned long long) loops[2],
- (unsigned long long) loops[3]);
- printf("shortwait: %llu,%llu,%llu\n",
- (unsigned long long) shortwait[0],
- (unsigned long long) shortwait[1],
- (unsigned long long) shortwait[2]);
- printf("compconn: %llu, lateconn: %llu\n",
- (unsigned long long) compconn,
- (unsigned long long) lateconn);
- printf("badconn: %llu, collconn: %llu, "
- "recverr: %llu, collsent: %llu\n",
- (unsigned long long) badconn,
- (unsigned long long) collconn,
- (unsigned long long) recverr,
- (unsigned long long) collsent);
- printf("memory: used(%d) / allocated(%d)\n",
- xused, xlast);
- }
-
- /* round-time trip statistics */
- if (xrcount != 0) {
- double avg, stddev;
-
- avg = dsum / xrcount;
- stddev = sqrt(dsumsq / xrcount - avg * avg);
- printf("RTT: min/avg/max/stddev: %.3f/%.3f/%.3f/%.3f ms\n",
- dmin * 1e3, avg * 1e3, dmax * 1e3, stddev * 1e3);
- }
- printf("\n");
-
- /* template(s) */
- if ((diags != NULL) && (strchr(diags, 'T') != NULL)) {
- size_t n;
-
- printf("length = 0x%zx\n", length_query);
- if (random_query > 0)
- printf("random offset = %zu\n", random_query);
- printf("content:\n");
- for (n = 0; n < length_query; n++) {
- printf("%s%02hhx",
- (n & 15) == 0 ? "" : " ",
- template_query[n]);
- if ((n & 15) == 15)
- printf("\n");
- }
- if ((n & 15) != 15)
- printf("\n");
- printf("\n");
- }
-
- /* compute the exit code (and exit) */
- if (fatal)
- exit(1);
- else if ((xccount == xscount) && (xscount == xrcount))
- exit(0);
- else
- exit(3);
-}
projects / thirdparty / bind9.git / commitdiff
