#!/usr/bin/env python
import Options
+import os
-def set_options(opt):
- opt.add_option('--enable-uid-wrapper',
- help=("Turn on uid wrapper library (default=no)"),
- action="store_true", dest='enable_uid_wrapper', default=False)
+VERSION="1.1.0"
def configure(conf):
- if Options.options.enable_uid_wrapper or Options.options.developer:
- conf.DEFINE('UID_WRAPPER', 1)
+ if conf.CHECK_BUNDLED_SYSTEM('uid_wrapper', minversion=VERSION, set_target=False):
+ conf.DEFINE('USING_SYSTEM_UID_WRAPPER', 1)
+ libuid_wrapper_so_path = 'libuid_wrapper.so'
+ else:
+ # check HAVE_GCC_ATOMIC_BUILTINS
+ conf.CHECK_CODE('''
+ #include <stdbool.h>
+ int main(void) {
+ bool x;
+ bool *p_x = &x;
+ __atomic_load(p_x, &x, __ATOMIC_RELAXED);
+ return 0;
+ ''',
+ 'HAVE_GCC_ATOMIC_BUILTINS',
+ addmain=False,
+ msg='Checking for atomic builtins')
+
+ # check HAVE_GCC_THREAD_LOCAL_STORAGE
+ conf.CHECK_CODE('''
+ __thread int tls;
+
+ int main(void) {
+ return 0;
+ }
+ ''',
+ 'HAVE_GCC_THREAD_LOCAL_STORAGE',
+ addmain=False,
+ msg='Checking for thread local storage')
+
+ # check HAVE_CONSTRUCTOR_ATTRIBUTE
+ conf.CHECK_CODE('''
+ void test_constructor_attribute(void) __attribute__ ((constructor));
+
+ void test_constructor_attribute(void)
+ {
+ return;
+ }
+
+ int main(void) {
+ return 0;
+ }
+ ''',
+ 'HAVE_CONSTRUCTOR_ATTRIBUTE',
+ addmain=False,
+ msg='Checking for library constructor support')
+
+ # check HAVE_DESTRUCTOR_ATTRIBUTE
+ conf.CHECK_CODE('''
+ void test_destructor_attribute(void) __attribute__ ((destructor));
+
+ void test_destructor_attribute(void)
+ {
+ return;
+ }
+
+ int main(void) {
+ return 0;
+ }
+ ''',
+ 'HAVE_DESTRUCTOR_ATTRIBUTE',
+ addmain=False,
+ msg='Checking for library destructor support')
+
+ if Options.options.address_sanitizer:
+ # check HAVE_ADDRESS_SANITIZER_ATTRIBUTE
+ conf.CHECK_CODE('''
+ void test_address_sanitizer_attribute(void) __attribute__((no_sanitize_address));
+
+ void test_address_sanitizer_attribute(void)
+ {
+ return;
+ }
+
+ int main(void) {
+ return 0;
+ }
+ ''',
+ 'HAVE_ADDRESS_SANITIZER_ATTRIBUTE',
+ addmain=False,
+ cflags='-Wall -Wextra -Werror',
+ msg='Checking for address sanitizer attribute')
+
+ # check HAVE_FUNCTION_ATTRIBUTE_FORMAT
+ conf.CHECK_CODE('''
+ void log_fn(const char *format, ...) __attribute__ ((format (printf, 1, 2)));
+
+ int main(void) {
+ return 0;
+ }
+ ''',
+ 'HAVE_FUNCTION_ATTRIBUTE_FORMAT',
+ addmain=False,
+ msg='Checking for printf format validation support')
+ # Prototype checks
+ conf.CHECK_C_PROTOTYPE('setgroups',
+ 'int setgroups(int ngroups, const gid_t *grouplist)',
+ define='HAVE_SETGROUPS_INT', headers='unistd.h sys/types.h')
+ conf.CHECK_C_PROTOTYPE('syscall',
+ 'int syscall(int number, ...)',
+ define='HAVE_SYSCALL_INT', headers='unistd.h sys/syscall.h')
+
+ conf.CHECK_FUNCS('getresuid getresgid')
+
+ # Create full path to uid_wrapper
+ srcdir = os.path.realpath(conf.srcdir)
+ libuid_wrapper_so_path = srcdir + '/bin/default/lib/uid_wrapper/libuid-wrapper.so'
+
+ conf.DEFINE('LIBUID_WRAPPER_SO_PATH', libuid_wrapper_so_path)
+ conf.DEFINE('UID_WRAPPER', 1)
+
+def build(bld):
+ if not bld.CONFIG_SET("USING_SYSTEM_UID_WRAPPER"):
+ # We need to do it this way or the library wont work.
+ # Using private_library=True will add symbol version which
+ # breaks preloading!
+ bld.SAMBA_LIBRARY('uid_wrapper',
+ source='uid_wrapper.c',
+ cflags='-DNDEBUG',
+ deps='dl',
+ install=False,
+ realname='libuid-wrapper.so')