newlib/winsup/cygwin/environ.h
Christopher Faylor 47dc3dec0a * environ.h (win_env::immediate): Declare new field.
(win_env::operator = ): Declare new operator.
(win_env::reset): Declare new function.
(win_env::~win_env): Declare new destructor.
(getwinenv): Add optional third argument to declaration.
* environ.cc (conv_envvars): Accommodate immediate field.
(win_env::operator =): Define new operator.
(win_env::~win_env): Define new destructor.
(win_env::add_cache): Add value to environment immediately if "immediate" is
set.
(getwinenv): Accept optional third argument which will be used to store
"cached" values to avoid overwriting real cache.
(spenv::force): Declare new field.
(spenvs): Accommodate force field.  Add "PATH=" with force set to true.
(spenv::retrieve): Avoid duping anything if we're not building an envblock.
(build_env): Ditto.  Use size of potentially constructed new environment block
to determine if we need to create an environment block.  Pass getwinenv
temporary storage to avoid inappropriately overwriting the environment cache.
2005-03-30 15:54:28 +00:00

51 lines
1.8 KiB
C

/* environ.h: Declarations for environ manipulation
Copyright 2000, 2001, 2002 Red Hat, Inc.
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. */
/* Initialize the environment */
void environ_init (char **, int)
__attribute__ ((regparm (2)));
/* The structure below is used to control conversion to/from posix-style
file specs. Currently, only PATH and HOME are converted, but PATH
needs to use a "convert path list" function while HOME needs a simple
"convert to posix/win32". For the simple case, where a calculated length
is required, just return CYG_MAX_PATH. *FIXME* */
struct win_env
{
const char *name;
size_t namelen;
char *posix;
char *native;
int (*toposix) (const char *, char *);
int (*towin32) (const char *, char *);
int (*posix_len) (const char *);
int (*win32_len) (const char *);
bool immediate;
void add_cache (const char *in_posix, const char *in_native = NULL)
__attribute__ ((regparm (3)));
const char * get_native () const {return native ? native + namelen : NULL;}
const char * get_posix () const {return posix ? posix : NULL;}
struct win_env& operator = (struct win_env& x);
void reset () {native = posix = NULL;}
~win_env ();
};
win_env * __stdcall getwinenv (const char *name, const char *posix = NULL, win_env * = NULL)
__attribute__ ((regparm (3)));
char * __stdcall getwinenveq (const char *name, size_t len, int)
__attribute__ ((regparm (3)));
void __stdcall update_envptrs ();
extern char **__cygwin_environ, ***main_environ;
extern "C" char __stdcall **cur_environ ();
char ** __stdcall build_env (const char * const *envp, char *&envblock,
int &envc, bool need_envblock)
__attribute__ ((regparm (3)));