haiku/headers/private/libroot/user_group.h

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/*
* Copyright 2008, Ingo Weinhold, ingo_weinhold@gmx.de. All rights reserved.
* Distributed under the terms of the MIT License.
*/
#ifndef _LIBROOT_USER_GROUP_COMMON_H
#define _LIBROOT_USER_GROUP_COMMON_H
#include <grp.h>
#include <pwd.h>
#include <shadow.h>
#include <OS.h>
#define MAX_PASSWD_NAME_LEN (32)
#define MAX_PASSWD_PASSWORD_LEN (32)
#define MAX_PASSWD_REAL_NAME_LEN (128)
#define MAX_PASSWD_HOME_DIR_LEN (B_PATH_NAME_LENGTH)
#define MAX_PASSWD_SHELL_LEN (B_PATH_NAME_LENGTH)
#define MAX_PASSWD_BUFFER_SIZE ( \
MAX_PASSWD_NAME_LEN \
+ MAX_PASSWD_PASSWORD_LEN \
+ MAX_PASSWD_REAL_NAME_LEN \
+ MAX_PASSWD_HOME_DIR_LEN \
+ MAX_PASSWD_SHELL_LEN)
#define MAX_GROUP_NAME_LEN (32)
#define MAX_GROUP_PASSWORD_LEN (32)
#define MAX_GROUP_MEMBER_COUNT (32)
#define MAX_GROUP_BUFFER_SIZE ( \
MAX_GROUP_NAME_LEN \
+ MAX_GROUP_PASSWORD_LEN \
+ ((MAX_GROUP_MEMBER_COUNT + 1) * sizeof(char*)))
// MAX_GROUP_NAME_LEN and MAX_GROUP_PASSWORD_LEN are char* aligned
#define MAX_SHADOW_PWD_NAME_LEN (32)
#define MAX_SHADOW_PWD_PASSWORD_LEN (128)
#define MAX_SHADOW_PWD_BUFFER_SIZE ( \
MAX_SHADOW_PWD_NAME_LEN \
+ MAX_SHADOW_PWD_PASSWORD_LEN)
#ifdef __cplusplus
#include <AutoLocker.h>
namespace BPrivate {
class KMessage;
class Tokenizer;
extern const char* kPasswdFile;
extern const char* kGroupFile;
extern const char* kShadowPwdFile;
// locking
status_t user_group_lock();
status_t user_group_unlock();
class UserGroupLocking {
public:
inline bool Lock(int*)
{
return user_group_lock() == B_OK;
}
inline void Unlock(int*)
{
user_group_unlock();
}
};
class UserGroupLocker : public AutoLocker<int, UserGroupLocking> {
public:
UserGroupLocker()
: AutoLocker<int, UserGroupLocking>((int*)1)
{
}
};
port_id get_registrar_authentication_port();
status_t send_authentication_request_to_registrar(KMessage& request,
KMessage& reply);
template<typename Type>
static inline Type*
relocate_pointer(addr_t baseAddress, Type*& address)
{
return address = (Type*)(baseAddress + (addr_t)address);
}
// passwd
status_t copy_passwd_to_buffer(const char* name, const char* password, uid_t uid,
gid_t gid, const char* home, const char* shell, const char* realName,
passwd* entry, char* buffer, size_t bufferSize);
status_t copy_passwd_to_buffer(const passwd* from, passwd* entry, char* buffer,
size_t bufferSize);
status_t parse_passwd_line(char* line, char*& name, char*& password, uid_t& uid,
gid_t& gid, char*& home, char*& shell, char*& realName);
// group
status_t copy_group_to_buffer(const char* name, const char* password, gid_t gid,
const char* const* members, int memberCount, group* entry, char* buffer,
size_t bufferSize);
status_t copy_group_to_buffer(const group* from, group* entry, char* buffer,
size_t bufferSize);
status_t parse_group_line(char* line, char*& name, char*& password, gid_t& gid,
char** members, int& memberCount);
// shadow password
status_t copy_shadow_pwd_to_buffer(const char* name, const char* password,
int lastChanged, int min, int max, int warn, int inactive, int expiration,
int flags, spwd* entry, char* buffer, size_t bufferSize);
status_t copy_shadow_pwd_to_buffer(const spwd* from, spwd* entry,
char* buffer, size_t bufferSize);
status_t parse_shadow_pwd_line(char* line, char*& name, char*& password,
int& lastChanged, int& min, int& max, int& warn, int& inactive,
int& expiration, int& flags);
} // namespace BPrivate
#endif // __cplusplus
#endif // _LIBROOT_USER_GROUP_COMMON_H