/* search_for_prefix requires that argv0_path be no more than MAXPATHLEN
bytes long.
*/
static int
search_for_prefix(wchar_t *argv0_path, wchar_t *home, wchar_t *_prefix)
{
size_t n;
wchar_t *vpath;
/* If PYTHONHOME is set, we believe it unconditionally */
if (home) {
wchar_t *delim;
wcsncpy(prefix, home, MAXPATHLEN);
delim = wcschr(prefix, DELIM);
if (delim)
*delim = L'\0';
joinpath(prefix, lib_python);
joinpath(prefix, LANDMARK);
return 1;
}
/* Check to see if argv[0] is in the build directory */
wcscpy(prefix, argv0_path);
joinpath(prefix, L"Modules/Setup");
if (isfile(prefix)) {
/* Check VPATH to see if argv0_path is in the build directory. */
vpath = _Py_char2wchar(VPATH, NULL);
if (vpath != NULL) {
wcscpy(prefix, argv0_path);
joinpath(prefix, vpath);
PyMem_Free(vpath);
joinpath(prefix, L"Lib");
joinpath(prefix, LANDMARK);
if (ismodule(prefix))
return -1;
}
}
/* Search from argv0_path, until root is found */
copy_absolute(prefix, argv0_path, MAXPATHLEN+1);
do {
n = wcslen(prefix);
joinpath(prefix, lib_python);
joinpath(prefix, LANDMARK);
if (ismodule(prefix))
return 1;
prefix[n] = L'\0';
reduce(prefix);
} while (prefix[0]);
/* Look at configure's PREFIX */
wcsncpy(prefix, _prefix, MAXPATHLEN);
joinpath(prefix, lib_python);
joinpath(prefix, LANDMARK);
if (ismodule(prefix))
return 1;
/* Fail */
return 0;
}
/** Modify path so that the result is an absolute path.
absolutize() requires that path be allocated at least MAXPATHLEN+1 bytes.
@param[in,out] path The path to be made absolute.
*/
static void
absolutize(char *path)
{
char buffer[MAXPATHLEN + 1];
if (is_absolute(path) == 1)
return;
copy_absolute(buffer, path);
strcpy(path, buffer);
}
/* absolutize() requires that path be allocated at least MAXPATHLEN+1 bytes. */
static void
absolutize(wchar_t *path)
{
wchar_t buffer[MAXPATHLEN+1];
if (path[0] == SEP)
return;
copy_absolute(buffer, path, MAXPATHLEN+1);
wcscpy(path, buffer);
}
/* search_for_prefix requires that argv0_path be no more than MAXPATHLEN
bytes long.
*/
static int
search_for_prefix(char *argv0_path, char *home)
{
size_t n;
char *vpath;
/* If PYTHONHOME is set, we believe it unconditionally */
if (home) {
char *delim;
strncpy(prefix, home, MAXPATHLEN);
delim = strchr(prefix, DELIM);
if (delim)
*delim = '\0';
joinpath(prefix, lib_python);
joinpath(prefix, LANDMARK);
return 1;
}
/* Check to see if argv[0] is in the build directory */
strcpy(prefix, argv0_path);
joinpath(prefix, "Modules/Setup");
if (isfile(prefix)) {
/* Check VPATH to see if argv0_path is in the build directory. */
vpath = VPATH;
strcpy(prefix, argv0_path);
joinpath(prefix, vpath);
joinpath(prefix, "Lib");
joinpath(prefix, LANDMARK);
if (ismodule(prefix))
return -1;
}
/* Search from argv0_path, until root is found */
copy_absolute(prefix, argv0_path);
do {
n = strlen(prefix);
joinpath(prefix, lib_python);
joinpath(prefix, LANDMARK);
if (ismodule(prefix))
return 1;
prefix[n] = '\0';
reduce(prefix);
} while (prefix[0]);
/* Look at configure's PREFIX */
strncpy(prefix, PREFIX, MAXPATHLEN);
joinpath(prefix, lib_python);
joinpath(prefix, LANDMARK);
if (ismodule(prefix))
return 1;
/* Fail */
return 0;
}
/* search_for_exec_prefix requires that argv0_path be no more than
MAXPATHLEN bytes long.
*/
static int
search_for_exec_prefix(char *argv0_path, char *home)
{
size_t n;
/* If PYTHONHOME is set, we believe it unconditionally */
if (home) {
char *delim;
delim = strchr(home, DELIM);
if (delim)
strncpy(exec_prefix, delim+1, MAXPATHLEN);
else
strncpy(exec_prefix, home, MAXPATHLEN);
joinpath(exec_prefix, lib_python);
joinpath(exec_prefix, "lib-dynload");
return 1;
}
/* Check to see if argv[0] is in the build directory */
strcpy(exec_prefix, argv0_path);
joinpath(exec_prefix, "Modules/Setup");
if (isfile(exec_prefix)) {
reduce(exec_prefix);
return -1;
}
/* Search from argv0_path, until root is found */
copy_absolute(exec_prefix, argv0_path);
do {
n = strlen(exec_prefix);
joinpath(exec_prefix, lib_python);
joinpath(exec_prefix, "lib-dynload");
if (isdir(exec_prefix))
return 1;
exec_prefix[n] = '\0';
reduce(exec_prefix);
} while (exec_prefix[0]);
/* Look at configure's EXEC_PREFIX */
strncpy(exec_prefix, EXEC_PREFIX, MAXPATHLEN);
joinpath(exec_prefix, lib_python);
joinpath(exec_prefix, "lib-dynload");
if (isdir(exec_prefix))
return 1;
/* Fail */
return 0;
}
/* search_for_exec_prefix requires that argv0_path be no more than
MAXPATHLEN bytes long.
*/
static int
search_for_exec_prefix(wchar_t *argv0_path, wchar_t *home, wchar_t *_exec_prefix)
{
size_t n;
/* If PYTHONHOME is set, we believe it unconditionally */
if (home) {
wchar_t *delim;
delim = wcschr(home, DELIM);
if (delim)
wcsncpy(exec_prefix, delim+1, MAXPATHLEN);
else
wcsncpy(exec_prefix, home, MAXPATHLEN);
joinpath(exec_prefix, lib_python);
joinpath(exec_prefix, L"lib-dynload");
return 1;
}
/* Check to see if argv[0] is in the build directory. "pybuilddir.txt"
is written by setup.py and contains the relative path to the location
of shared library modules. */
wcscpy(exec_prefix, argv0_path);
joinpath(exec_prefix, L"pybuilddir.txt");
if (isfile(exec_prefix)) {
FILE *f = _Py_wfopen(exec_prefix, L"rb");
if (f == NULL)
errno = 0;
else {
char buf[MAXPATHLEN+1];
PyObject *decoded;
wchar_t rel_builddir_path[MAXPATHLEN+1];
n = fread(buf, 1, MAXPATHLEN, f);
buf[n] = '\0';
fclose(f);
decoded = PyUnicode_DecodeUTF8(buf, n, "surrogateescape");
if (decoded != NULL) {
Py_ssize_t k;
k = PyUnicode_AsWideChar(decoded,
rel_builddir_path, MAXPATHLEN);
Py_DECREF(decoded);
if (k >= 0) {
rel_builddir_path[k] = L'\0';
wcscpy(exec_prefix, argv0_path);
joinpath(exec_prefix, rel_builddir_path);
return -1;
}
}
}
}
/* Search from argv0_path, until root is found */
copy_absolute(exec_prefix, argv0_path, MAXPATHLEN+1);
do {
n = wcslen(exec_prefix);
joinpath(exec_prefix, lib_python);
joinpath(exec_prefix, L"lib-dynload");
if (isdir(exec_prefix))
return 1;
exec_prefix[n] = L'\0';
reduce(exec_prefix);
} while (exec_prefix[0]);
/* Look at configure's EXEC_PREFIX */
wcsncpy(exec_prefix, _exec_prefix, MAXPATHLEN);
joinpath(exec_prefix, lib_python);
joinpath(exec_prefix, L"lib-dynload");
if (isdir(exec_prefix))
return 1;
/* Fail */
return 0;
}
/* search_for_exec_prefix requires that argv0_path be no more than
MAXPATHLEN bytes long.
*/
static int
search_for_exec_prefix(char *argv0_path, char *home)
{
size_t n;
/* If PYTHONHOME is set, we believe it unconditionally */
if (home) {
char *delim;
delim = strchr(home, DELIM);
if (delim)
strncpy(exec_prefix, delim+1, MAXPATHLEN);
else
strncpy(exec_prefix, home, MAXPATHLEN);
joinpath(exec_prefix, lib_python);
joinpath(exec_prefix, "lib-dynload");
return 1;
}
/* Check to see if argv[0] is in the build directory. "pybuilddir.txt"
is written by setup.py and contains the relative path to the location
of shared library modules. */
strcpy(exec_prefix, argv0_path);
joinpath(exec_prefix, "pybuilddir.txt");
if (isfile(exec_prefix)) {
FILE *f = fopen(exec_prefix, "r");
if (f == NULL)
errno = 0;
else {
char rel_builddir_path[MAXPATHLEN+1];
size_t n;
n = fread(rel_builddir_path, 1, MAXPATHLEN, f);
rel_builddir_path[n] = '\0';
fclose(f);
if (n >= 0) {
strcpy(exec_prefix, argv0_path);
joinpath(exec_prefix, rel_builddir_path);
return -1;
}
}
}
/* Search from argv0_path, until root is found */
copy_absolute(exec_prefix, argv0_path);
do {
n = strlen(exec_prefix);
joinpath(exec_prefix, lib_python);
joinpath(exec_prefix, "lib-dynload");
if (isdir(exec_prefix))
return 1;
exec_prefix[n] = '\0';
reduce(exec_prefix);
} while (exec_prefix[0]);
/* Look at configure's EXEC_PREFIX */
strncpy(exec_prefix, EXEC_PREFIX, MAXPATHLEN);
joinpath(exec_prefix, lib_python);
joinpath(exec_prefix, "lib-dynload");
if (isdir(exec_prefix))
return 1;
/* Fail */
return 0;
}
/* search_for_exec_prefix requires that argv0_path be no more than
MAXPATHLEN bytes long.
*/
static int
search_for_exec_prefix(const _PyCoreConfig *core_config,
PyCalculatePath *calculate, wchar_t *exec_prefix)
{
size_t n;
/* If PYTHONHOME is set, we believe it unconditionally */
if (core_config->home) {
wchar_t *delim = wcschr(core_config->home, DELIM);
if (delim) {
wcsncpy(exec_prefix, delim+1, MAXPATHLEN);
}
else {
wcsncpy(exec_prefix, core_config->home, MAXPATHLEN);
}
exec_prefix[MAXPATHLEN] = L'\0';
joinpath(exec_prefix, calculate->lib_python);
joinpath(exec_prefix, L"lib-dynload");
return 1;
}
/* Check to see if argv[0] is in the build directory. "pybuilddir.txt"
is written by setup.py and contains the relative path to the location
of shared library modules. */
wcsncpy(exec_prefix, calculate->argv0_path, MAXPATHLEN);
exec_prefix[MAXPATHLEN] = L'\0';
joinpath(exec_prefix, L"pybuilddir.txt");
if (isfile(exec_prefix)) {
FILE *f = _Py_wfopen(exec_prefix, L"rb");
if (f == NULL) {
errno = 0;
}
else {
char buf[MAXPATHLEN+1];
wchar_t *rel_builddir_path;
n = fread(buf, 1, MAXPATHLEN, f);
buf[n] = '\0';
fclose(f);
rel_builddir_path = _Py_DecodeUTF8_surrogateescape(buf, n);
if (rel_builddir_path) {
wcsncpy(exec_prefix, calculate->argv0_path, MAXPATHLEN);
exec_prefix[MAXPATHLEN] = L'\0';
joinpath(exec_prefix, rel_builddir_path);
PyMem_RawFree(rel_builddir_path );
return -1;
}
}
}
/* Search from argv0_path, until root is found */
copy_absolute(exec_prefix, calculate->argv0_path, MAXPATHLEN+1);
do {
n = wcslen(exec_prefix);
joinpath(exec_prefix, calculate->lib_python);
joinpath(exec_prefix, L"lib-dynload");
if (isdir(exec_prefix)) {
return 1;
}
exec_prefix[n] = L'\0';
reduce(exec_prefix);
} while (exec_prefix[0]);
/* Look at configure's EXEC_PREFIX */
wcsncpy(exec_prefix, calculate->exec_prefix, MAXPATHLEN);
exec_prefix[MAXPATHLEN] = L'\0';
joinpath(exec_prefix, calculate->lib_python);
joinpath(exec_prefix, L"lib-dynload");
if (isdir(exec_prefix)) {
return 1;
}
/* Fail */
return 0;
}
/* search_for_prefix requires that argv0_path be no more than MAXPATHLEN
bytes long.
*/
static int
search_for_prefix(const _PyCoreConfig *core_config,
PyCalculatePath *calculate, wchar_t *prefix)
{
size_t n;
wchar_t *vpath;
/* If PYTHONHOME is set, we believe it unconditionally */
if (core_config->home) {
wcsncpy(prefix, core_config->home, MAXPATHLEN);
prefix[MAXPATHLEN] = L'\0';
wchar_t *delim = wcschr(prefix, DELIM);
if (delim) {
*delim = L'\0';
}
joinpath(prefix, calculate->lib_python);
joinpath(prefix, LANDMARK);
return 1;
}
/* Check to see if argv[0] is in the build directory */
wcsncpy(prefix, calculate->argv0_path, MAXPATHLEN);
prefix[MAXPATHLEN] = L'\0';
joinpath(prefix, L"Modules/Setup.local");
if (isfile(prefix)) {
/* Check VPATH to see if argv0_path is in the build directory. */
vpath = Py_DecodeLocale(VPATH, NULL);
if (vpath != NULL) {
wcsncpy(prefix, calculate->argv0_path, MAXPATHLEN);
prefix[MAXPATHLEN] = L'\0';
joinpath(prefix, vpath);
PyMem_RawFree(vpath);
joinpath(prefix, L"Lib");
joinpath(prefix, LANDMARK);
if (ismodule(prefix)) {
return -1;
}
}
}
/* Search from argv0_path, until root is found */
copy_absolute(prefix, calculate->argv0_path, MAXPATHLEN+1);
do {
n = wcslen(prefix);
joinpath(prefix, calculate->lib_python);
joinpath(prefix, LANDMARK);
if (ismodule(prefix)) {
return 1;
}
prefix[n] = L'\0';
reduce(prefix);
} while (prefix[0]);
/* Look at configure's PREFIX */
wcsncpy(prefix, calculate->prefix, MAXPATHLEN);
prefix[MAXPATHLEN] = L'\0';
joinpath(prefix, calculate->lib_python);
joinpath(prefix, LANDMARK);
if (ismodule(prefix)) {
return 1;
}
/* Fail */
return 0;
}
