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dnl $Id: crypto.m4,v 1.13 2002/09/10 19:55:48 joda Exp $
dnl
dnl test for crypto libraries:
dnl - libcrypto (from openssl)
dnl - libdes (from krb4)
dnl - own-built libdes
m4_define([test_headers], [
#undef KRB5 /* makes md4.h et al unhappy */
#ifdef HAVE_OPENSSL
#include <openssl/md4.h>
#include <openssl/md5.h>
#include <openssl/sha.h>
#include <openssl/des.h>
#include <openssl/rc4.h>
#else
#include <md4.h>
#include <md5.h>
#include <sha.h>
#include <des.h>
#include <rc4.h>
#endif
#ifdef OLD_HASH_NAMES
typedef struct md4 MD4_CTX;
#define MD4_Init(C) md4_init((C))
#define MD4_Update(C, D, L) md4_update((C), (D), (L))
#define MD4_Final(D, C) md4_finito((C), (D))
typedef struct md5 MD5_CTX;
#define MD5_Init(C) md5_init((C))
#define MD5_Update(C, D, L) md5_update((C), (D), (L))
#define MD5_Final(D, C) md5_finito((C), (D))
typedef struct sha SHA_CTX;
#define SHA1_Init(C) sha_init((C))
#define SHA1_Update(C, D, L) sha_update((C), (D), (L))
#define SHA1_Final(D, C) sha_finito((C), (D))
#endif
])
m4_define([test_body], [
void *schedule = 0;
MD4_CTX md4;
MD5_CTX md5;
SHA_CTX sha1;
MD4_Init(&md4);
MD5_Init(&md5);
SHA1_Init(&sha1);
des_cbc_encrypt(0, 0, 0, schedule, 0, 0);
RC4(0, 0, 0, 0);])
AC_DEFUN([KRB_CRYPTO],[
crypto_lib=unknown
AC_WITH_ALL([openssl])
DIR_des=
AC_MSG_CHECKING([for crypto library])
openssl=no
old_hash=no
if test "$crypto_lib" = "unknown" -a "$with_krb4" != "no"; then
save_CPPFLAGS="$CPPFLAGS"
save_LIBS="$LIBS"
cdirs= clibs=
for i in $LIB_krb4; do
case "$i" in
-L*) cdirs="$cdirs $i";;
-l*) clibs="$clibs $i";;
esac
done
ires=
for i in $INCLUDE_krb4; do
CFLAGS="-DHAVE_OPENSSL $i $save_CFLAGS"
AC_TRY_COMPILE(test_headers, test_body,
openssl=yes ires="$i"; break)
CFLAGS="$i $save_CFLAGS"
AC_TRY_COMPILE(test_headers, test_body,
openssl=no ires="$i"; break)
CFLAGS="-DOLD_HASH_NAMES $i $save_CFLAGS"
AC_TRY_COMPILE(test_headers, test_body,
openssl=no ires="$i" old_hash=yes; break)
done
lres=
for i in $cdirs; do
for j in $clibs; do
LIBS="$i $j $save_LIBS"
AC_TRY_LINK(test_headers, test_body,
lres="$i $j"; break 2)
done
done
CFLAGS="$save_CFLAGS"
LIBS="$save_LIBS"
if test "$ires" -a "$lres"; then
INCLUDE_des="$ires"
LIB_des="$lres"
crypto_lib=krb4
AC_MSG_RESULT([same as krb4])
LIB_des_a='$(LIB_des)'
LIB_des_so='$(LIB_des)'
LIB_des_appl='$(LIB_des)'
fi
fi
if test "$crypto_lib" = "unknown" -a "$with_openssl" != "no"; then
save_CFLAGS="$CFLAGS"
save_LIBS="$LIBS"
INCLUDE_des=
LIB_des=
if test "$with_openssl_include" != ""; then
INCLUDE_des="-I${with_openssl}/include"
fi
if test "$with_openssl_lib" != ""; then
LIB_des="-L${with_openssl}/lib"
fi
CFLAGS="-DHAVE_OPENSSL ${INCLUDE_des} ${CFLAGS}"
LIB_des="${LIB_des} -lcrypto"
LIB_des_a="$LIB_des"
LIB_des_so="$LIB_des"
LIB_des_appl="$LIB_des"
LIBS="${LIBS} ${LIB_des}"
AC_TRY_LINK(test_headers, test_body, [
crypto_lib=libcrypto openssl=yes
AC_MSG_RESULT([libcrypto])
])
CFLAGS="$save_CFLAGS"
LIBS="$save_LIBS"
fi
if test "$crypto_lib" = "unknown"; then
DIR_des='des'
LIB_des='$(top_builddir)/lib/des/libdes.la'
LIB_des_a='$(top_builddir)/lib/des/.libs/libdes.a'
LIB_des_so='$(top_builddir)/lib/des/.libs/libdes.so'
LIB_des_appl="-ldes"
AC_MSG_RESULT([included libdes])
fi
if test "$with_krb4" != no -a "$crypto_lib" != krb4; then
AC_MSG_ERROR([the crypto library used by krb4 lacks features
required by Kerberos 5; to continue, you need to install a newer
Kerberos 4 or configure --without-krb4])
fi
if test "$openssl" = "yes"; then
AC_DEFINE([HAVE_OPENSSL], 1, [define to use openssl's libcrypto])
fi
if test "$old_hash" = yes; then
AC_DEFINE([HAVE_OLD_HASH_NAMES], 1,
[define if you have hash functions like md4_finito()])
fi
AM_CONDITIONAL(HAVE_OPENSSL, test "$openssl" = yes)dnl
AC_SUBST(DIR_des)
AC_SUBST(INCLUDE_des)
AC_SUBST(LIB_des)
AC_SUBST(LIB_des_a)
AC_SUBST(LIB_des_so)
AC_SUBST(LIB_des_appl)
])
|
