newlib-cygwin/winsup/cygwin/pwdgrp.h

83 lines
2.0 KiB
C++

/* 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 (cygpsid &);
extern struct passwd *internal_getpwnam (const char *, bool = FALSE);
extern struct passwd *internal_getpwuid (__uid32_t, bool = FALSE);
extern struct __group32 *internal_getgrsid (cygpsid &);
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 *, cygpsid * = NULL);
#include "sync.h"
class pwdgrp
{
unsigned pwdgrp_buf_elem_size;
union
{
passwd **passwd_buf;
__group32 **group_buf;
void **pwdgrp_buf;
};
void (pwdgrp::*read) ();
bool (pwdgrp::*parse) ();
int etc_ix;
path_conv pc;
char *buf, *lptr;
int max_lines;
bool initialized;
muto *pglock;
bool parse_passwd ();
bool parse_group ();
void read_passwd ();
void read_group ();
char *add_line (char *);
char *raw_ptr () const {return lptr;}
char *next_str (char);
bool next_num (unsigned long&);
bool next_num (unsigned int& i)
{
unsigned long x;
bool res = next_num (x);
i = (unsigned int) x;
return res;
}
inline bool next_num (int& i)
{
unsigned long x;
bool res = next_num (x);
i = (int) x;
return res;
}
public:
int curr_lines;
void load (const char *);
inline void refresh (bool check)
{
if (!check && initialized)
return;
if (pglock->acquire () == 1 &&
(!initialized || (check && etc::file_changed (etc_ix))))
(this->*read) ();
pglock->release ();
}
pwdgrp (passwd *&pbuf);
pwdgrp (__group32 *&gbuf);
};