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/* libjodycode: getcwd() stdio call
*
* Copyright (C) 2014-2026 by Jody Bruchon <jody@jodybruchon.com>
* Released under The MIT License
*/
#include <errno.h>
#ifndef ON_WINDOWS
#include <unistd.h>
#endif
#include "likely_unlikely.h"
#include "libjodycode.h"
#ifdef UNICODE
#define WIN32_LEAN_AND_MEAN
#include <windows.h>
#endif
/* Check file exist/read/write, converting for Windows if necessary */
char *jc_getcwd(char * const restrict pathname, const size_t size)
{
char *retval;
#ifdef UNICODE
const size_t wsize = size * 2;
JC_WCHAR_T *widename;
int i;
#endif
if (unlikely(pathname == NULL)) {
jc_errno = EFAULT;
return NULL;
}
#ifdef ON_WINDOWS
#ifdef UNICODE
widename = (JC_WCHAR_T *)calloc(1, wsize);
if (widename == NULL) {
jc_errno = ENOMEM;
return NULL;
}
retval = (char *)_wgetcwd(widename, (int)wsize);
i = W2M_SIZED(widename, pathname, (int)size);
free(widename);
if (unlikely(i == 0)) {
jc_errno = jc_GetLastError();
return NULL;
}
#else
retval = _getcwd(pathname, (int)size);
#endif /* UNICODE */
#else /* Not Windows */
retval = getcwd(pathname, size);
#endif /* ON_WINDOWS */
if (retval == NULL) jc_errno = errno;
return retval;
}
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