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# Copyright (C) 1996-2025 The Squid Software Foundation and contributors
##
## Squid software is distributed under GPLv2+ license and includes
## contributions from numerous individuals and organizations.
## Please see the COPYING and CONTRIBUTORS files for details.
##
dnl checks for LDAP functionality
AC_DEFUN([SQUID_LDAP_TEST],[
AC_CACHE_CHECK([for $1],[squid_cv_$1],[
SQUID_STATE_SAVE(squid_ldap_test_state)
LIBS="$LIBLDAP_PATH $LIBLDAP_LIBS $LIBPTHREADS"
CPPFLAGS="-DLDAP_DEPRECATED=1 -DLDAP_REFERRALS $CPPFLAGS"
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
# if HAVE_LDAP_H
# include <ldap.h>
# elif HAVE_MOZLDAP_LDAP_H
# include <mozldap/ldap.h>
# endif
]],[[$2]])
],[
squid_cv_$1=1
],[
squid_cv_$1=0
],[
squid_cv_$1=0
])
SQUID_STATE_ROLLBACK(squid_ldap_test_state)
])
AC_DEFINE_UNQUOTED([HAVE_$1],${squid_cv_$1},[Define to 1 if you have $1])
])
dnl similar to SQUID_LDAP_TEST but runs the test program
AC_DEFUN([SQUID_LDAP_TEST_RUN],[
AC_CACHE_CHECK([for $1],[m4_translit([squid_cv_$1],[-+. ],[____])],[
SQUID_STATE_SAVE(squid_ldap_test_state)
LIBS="$LIBLDAP_PATH $LIBLDAP_LIBS $LIBPTHREADS"
CPPFLAGS="-DLDAP_DEPRECATED=1 -DLDAP_REFERRALS $CPPFLAGS"
AC_RUN_IFELSE([AC_LANG_PROGRAM([[
# if HAVE_LDAP_H
# include <ldap.h>
# elif HAVE_MOZLDAP_LDAP_H
# include <mozldap/ldap.h>
# endif
# include <string.h>
]],[[$2]])
],[
m4_translit([squid_cv_$1],[-+. ],[____])=1
],[
m4_translit([squid_cv_$1],[-+. ],[____])=0
],[
m4_translit([squid_cv_$1],[-+. ],[____])=0
])
SQUID_STATE_ROLLBACK(squid_ldap_test_state)
])
AC_DEFINE_UNQUOTED([m4_translit([m4_translit([HAVE_$1],[-+. abcdefghijklmnopqrstuvwxyz],[____ABCDEFGHIJKLMNOPQRSTUVWXYZ])],[-+. ],[____])],
${m4_translit([squid_cv_$1],[-+. ],[____])},[Define to 1 if you have $1])
])
dnl find the LDAP library vendor and define relevant HAVE_(vendor name) macro
AC_DEFUN([SQUID_LDAP_CHECK_VENDOR],[
SQUID_LDAP_TEST_RUN([OpenLDAP],[return strcmp(LDAP_VENDOR_NAME,"OpenLDAP")])
SQUID_LDAP_TEST_RUN([Sun LDAP SDK],[return strcmp(LDAP_VENDOR_NAME,"Sun Microsystems Inc.")])
SQUID_LDAP_TEST_RUN([Mozilla LDAP SDK],[return strcmp(LDAP_VENDOR_NAME,"mozilla.org")])
])
dnl check whether the LDAP library(s) provide the needed API and types
dnl define HAVE_DAP_* macros for each checked item
AC_DEFUN([SQUID_CHECK_LDAP_API],[
SQUID_LDAP_TEST([LDAP],[
char host[]="";
int port;
ldap_init((const char *)&host, port);
])
SQUID_LDAP_CHECK_VENDOR
SQUID_LDAP_TEST([LDAP_OPT_DEBUG_LEVEL],[auto i=LDAP_OPT_DEBUG_LEVEL])
SQUID_LDAP_TEST([LDAP_SCOPE_DEFAULT],[auto i=LDAP_SCOPE_DEFAULT])
SQUID_LDAP_TEST([LDAP_REBIND_PROC],[LDAP_REBIND_PROC ldap_rebind])
SQUID_LDAP_TEST([LDAP_REBINDPROC_CALLBACK],[LDAP_REBINDPROC_CALLBACK ldap_rebind])
SQUID_LDAP_TEST([LDAP_REBIND_FUNCTION],[LDAP_REBIND_FUNCTION ldap_rebind])
dnl TODO check this test's code actually works, it looks broken
SQUID_LDAP_TEST([LDAP_URL_LUD_SCHEME],[struct ldap_url_desc.lud_scheme])
AC_CHECK_LIB(ldap,[ldapssl_client_init],[
AC_DEFINE(HAVE_LDAPSSL_CLIENT_INIT,1,[Define to 1 if you have ldapssl_client_init])
])
dnl Extract library names for AC_SEARCH_LIBS() to iterate.
LIBLDAP_NAMES="`echo "$LIBLDAP_LIBS" | sed -e 's/-l//g'`"
dnl If a AC_SEARCH_LIBS() finds a required library X then subsequent calls
dnl may produce a misleading "none required" result for the same library X
dnl because the first successful search adds -lX to LIBS.
AC_SEARCH_LIBS([ldap_url_desc2str],[$LIBLDAP_NAMES],[
AC_DEFINE(HAVE_LDAP_URL_DESC2STR,1,[Define to 1 if you have ldap_url_desc2str])
])
AC_SEARCH_LIBS([ldap_url_parse],[$LIBLDAP_NAMES],[
AC_DEFINE(HAVE_LDAP_URL_PARSE,1,[Define to 1 if you have ldap_url_parse])
])
AC_SEARCH_LIBS([ldap_start_tls_s],[$LIBLDAP_NAMES],[
AC_DEFINE(HAVE_LDAP_START_TLS_S,1,[Define to 1 if you have ldap_start_tls_s])
])
])
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