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/* pwdgrp.h
Copyright 2001, 2002, 2003 Red Hat inc.
Stuff common to pwd and grp handling.
This file is part of Cygwin.
This software is a copyrighted work licensed under the terms of the
Cygwin license. Please consult the file "CYGWIN_LICENSE" for
details. */
/* These functions are needed to allow searching and walking through
the passwd and group lists */
extern struct passwd *internal_getpwsid (cygsid &);
extern struct passwd *internal_getpwnam (const char *, bool = FALSE);
extern struct passwd *internal_getpwuid (__uid32_t, bool = FALSE);
extern struct __group32 *internal_getgrsid (cygsid &);
extern struct __group32 *internal_getgrgid (__gid32_t gid, bool = FALSE);
extern struct __group32 *internal_getgrnam (const char *, bool = FALSE);
extern struct __group32 *internal_getgrent (int);
int internal_getgroups (int, __gid32_t *, cygsid * = NULL);
class pwdgrp
{
unsigned pwdgrp_buf_elem_size;
union
{
passwd **passwd_buf;
__group32 **group_buf;
void **pwdgrp_buf;
};
void (pwdgrp::*read) ();
bool (pwdgrp::*parse) (char *);
int etc_ix;
path_conv pc;
char *buf;
int max_lines;
bool initialized;
CRITICAL_SECTION lock;
char *gets (char*&);
public:
int curr_lines;
bool parse_passwd (char *);
bool parse_group (char *);
void read_passwd ();
void read_group ();
void add_line (char *);
void refresh (bool check = true)
{
if (initialized && check && etc::file_changed (etc_ix))
initialized = false;
if (!initialized)
{
EnterCriticalSection (&lock);
if (!initialized)
(this->*read) ();
LeaveCriticalSection (&lock);
}
}
bool load (const char *);
pwdgrp (passwd *&pbuf) :
pwdgrp_buf_elem_size (sizeof (*pbuf)), passwd_buf (&pbuf)
{
read = &pwdgrp::read_passwd;
parse = &pwdgrp::parse_passwd;
InitializeCriticalSection (&lock);
}
pwdgrp (__group32 *&gbuf) :
pwdgrp_buf_elem_size (sizeof (*gbuf)), group_buf (&gbuf)
{
read = &pwdgrp::read_group;
parse = &pwdgrp::parse_group;
InitializeCriticalSection (&lock);
}
};
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