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getcwd() is actually implemented like elsewhere, and not strictly after

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POSIX demands: if you pass in a NULL pointer, a buffer will now be
allocated for you.


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@11388 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Axel Dörfler 2005-02-16 03:51:34 +00:00
parent 86e404324f
commit 4b72e95292
1 changed files with 22 additions and 5 deletions
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27
src/kernel/libroot/posix/unistd/directory.c
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@ -1,12 +1,13 @@
/*
** Copyright 2002-2004, Axel Dörfler, axeld@pinc-software.de. All rights reserved.
** Distributed under the terms of the Haiku License.
*/
/*
* Copyright 2002-2005, Axel Dörfler, axeld@pinc-software.de. All rights reserved.
* Distributed under the terms of the MIT License.
*/
#include <syscalls.h>
#include <unistd.h>
#include <stdlib.h>
#include <errno.h>
@ -39,8 +40,24 @@ fchdir(int fd)
char *
getcwd(char *buffer, size_t size)
{
int status = _kern_getcwd(buffer, size);
bool allocated = false;
status_t status;
if (buffer == NULL) {
buffer = malloc(size = PATH_MAX);
if (buffer == NULL) {
errno = B_NO_MEMORY;
return NULL;
}
allocated = true;
}
status = _kern_getcwd(buffer, size);
if (status < B_OK) {
if (allocated)
free(buffer);
errno = status;
return NULL;
}