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Create fileutils.c/.h

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* _Py_fopen() and _Py_stat() come from Python/import.c
 * (_Py)_wrealpath() comes from Python/sysmodule.c
 * _Py_char2wchar(), _Py_wchar2char() and _Py_wfopen() come from Modules/main.c
 * (_Py)_wstat(), (_Py)_wgetcwd(), _Py_wreadlink() come from Modules/getpath.c
This commit is contained in:
Victor Stinner 2010-10-07 21:45:39 +00:00
parent 7ae7c87b05
commit 4e31443c4d
9 changed files with 832 additions and 392 deletions
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81
Modules/getpath.c
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@ -136,78 +136,6 @@ static wchar_t progpath[MAXPATHLEN+1];
static wchar_t *module_search_path = NULL;
static wchar_t *lib_python = L"lib/python" VERSION;
/* In principle, this should use HAVE__WSTAT, and _wstat
should be detected by autoconf. However, no current
POSIX system provides that function, so testing for
it is pointless.
Not sure whether the MS_WINDOWS guards are necessary:
perhaps for cygwin/mingw builds?
*/
#ifndef MS_WINDOWS
static int
_wstat(const wchar_t* path, struct stat *buf)
{
int err;
char *fname;
fname = _Py_wchar2char(path);
if (fname == NULL) {
errno = EINVAL;
return -1;
}
err = stat(fname, buf);
PyMem_Free(fname);
return err;
}
#endif
#ifndef MS_WINDOWS
static wchar_t*
_wgetcwd(wchar_t *buf, size_t size)
{
char fname[PATH_MAX];
if (getcwd(fname, PATH_MAX) == NULL)
return NULL;
if (mbstowcs(buf, fname, size) >= size) {
errno = ERANGE;
return NULL;
}
return buf;
}
#endif
#ifdef HAVE_READLINK
int
_Py_wreadlink(const wchar_t *path, wchar_t *buf, size_t bufsiz)
{
char *cpath;
char cbuf[PATH_MAX];
int res;
size_t r1;
cpath = _Py_wchar2char(path);
if (cpath == NULL) {
errno = EINVAL;
return -1;
}
res = (int)readlink(cpath, cbuf, PATH_MAX);
PyMem_Free(cpath);
if (res == -1)
return -1;
if (res == PATH_MAX) {
errno = EINVAL;
return -1;
}
cbuf[res] = '\0'; /* buf will be null terminated */
r1 = mbstowcs(buf, cbuf, bufsiz);
if (r1 == -1) {
errno = EINVAL;
return -1;
}
return (int)r1;
}
#endif
static void
reduce(wchar_t *dir)
{
@ -217,12 +145,11 @@ reduce(wchar_t *dir)
dir[i] = '\0';
}
static int
isfile(wchar_t *filename) /* Is file, not directory */
{
struct stat buf;
if (_wstat(filename, &buf) != 0)
if (_Py_wstat(filename, &buf) != 0)
return 0;
if (!S_ISREG(buf.st_mode))
return 0;
@ -250,7 +177,7 @@ static int
isxfile(wchar_t *filename) /* Is executable file */
{
struct stat buf;
if (_wstat(filename, &buf) != 0)
if (_Py_wstat(filename, &buf) != 0)
return 0;
if (!S_ISREG(buf.st_mode))
return 0;
@ -264,7 +191,7 @@ static int
isdir(wchar_t *filename) /* Is directory */
{
struct stat buf;
if (_wstat(filename, &buf) != 0)
if (_Py_wstat(filename, &buf) != 0)
return 0;
if (!S_ISDIR(buf.st_mode))
return 0;
@ -309,7 +236,7 @@ copy_absolute(wchar_t *path, wchar_t *p)
if (p[0] == SEP)
wcscpy(path, p);
else {
_wgetcwd(path, MAXPATHLEN);
_Py_wgetcwd(path, MAXPATHLEN);
if (p[0] == '.' && p[1] == SEP)
p += 2;
joinpath(path, p);