mirror of
https://github.com/boostorg/build.git
synced 2026-02-15 13:02:11 +00:00
77 lines
1.5 KiB
C
77 lines
1.5 KiB
C
/* Copyright Vladimir Prus 2002, Rene Rivera 2005. Distributed under the Boost */
|
|
/* Software License, Version 1.0. (See accompanying */
|
|
/* file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) */
|
|
|
|
#include "jam.h"
|
|
#include "lists.h"
|
|
#include "object.h"
|
|
#include "pathsys.h"
|
|
#include "mem.h"
|
|
|
|
#include <limits.h>
|
|
#include <errno.h>
|
|
|
|
/* MinGW on windows declares PATH_MAX in limits.h */
|
|
#if defined(NT) && ! defined(__GNUC__)
|
|
#include <direct.h>
|
|
#define PATH_MAX _MAX_PATH
|
|
#else
|
|
#include <unistd.h>
|
|
#if defined(__COMO__)
|
|
#include <linux/limits.h>
|
|
#endif
|
|
#endif
|
|
|
|
#ifndef PATH_MAX
|
|
#define PATH_MAX 1024
|
|
#endif
|
|
|
|
/* The current directory can't change in bjam, so optimize this to cache
|
|
** the result.
|
|
*/
|
|
static OBJECT * pwd_result = NULL;
|
|
|
|
|
|
LIST*
|
|
pwd(void)
|
|
{
|
|
if (!pwd_result)
|
|
{
|
|
int buffer_size = PATH_MAX;
|
|
char * result_buffer = 0;
|
|
do
|
|
{
|
|
char * buffer = BJAM_MALLOC_RAW(buffer_size);
|
|
result_buffer = getcwd(buffer,buffer_size);
|
|
if (result_buffer)
|
|
{
|
|
#ifdef NT
|
|
OBJECT * result = object_new(result_buffer);
|
|
pwd_result = short_path_to_long_path(result);
|
|
object_free( result );
|
|
#else
|
|
pwd_result = object_new(result_buffer);
|
|
#endif
|
|
}
|
|
buffer_size *= 2;
|
|
BJAM_FREE_RAW(buffer);
|
|
}
|
|
while (!pwd_result && errno == ERANGE);
|
|
|
|
if (!pwd_result)
|
|
{
|
|
perror("can not get current directory");
|
|
return L0;
|
|
}
|
|
}
|
|
return list_new( object_copy( pwd_result ) );
|
|
}
|
|
|
|
void pwd_done( void )
|
|
{
|
|
if( pwd_result )
|
|
{
|
|
object_free( pwd_result );
|
|
}
|
|
}
|