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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);
enum pwdgrp_state {
uninitialized = 0,
initializing,
loaded
};
class pwdgrp
{
pwdgrp_state state;
int pwd_ix;
path_conv pc;
char *buf;
int max_lines;
union
{
passwd **passwd_buf;
__group32 **group_buf;
void **pwdgrp_buf;
};
unsigned pwdgrp_buf_elem_size;
bool (pwdgrp::*parse) (char *);
char *gets (char*&);
bool parse_pwd (char *);
bool parse_grp (char *);
public:
int curr_lines;
void add_line (char *);
bool isinitializing ()
{
if (state <= initializing)
state = initializing;
else if (etc::file_changed (pwd_ix))
state = initializing;
return state == initializing;
}
void operator = (pwdgrp_state nstate) { state = nstate; }
bool isuninitialized () const { return state == uninitialized; }
bool load (const char *);
bool load (const char *posix_fname, passwd *&buf)
{
passwd_buf = &buf;
pwdgrp_buf_elem_size = sizeof (*buf);
parse = &pwdgrp::parse_pwd;
return load (posix_fname);
}
bool load (const char *posix_fname, __group32 *&buf)
{
group_buf = &buf;
pwdgrp_buf_elem_size = sizeof (*buf);
parse = &pwdgrp::parse_grp;
return load (posix_fname);
}
};
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