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authorAntoine Pitrou <solipsis@pitrou.net>2010-05-09 15:52:27 (GMT)
committerAntoine Pitrou <solipsis@pitrou.net>2010-05-09 15:52:27 (GMT)
commitf95a1b3c53bdd678b64aa608d4375660033460c3 (patch)
treea8bee40b1b14e28ff5978ea519f3035a3c399912 /PC/getpathp.c
parentbd250300191133d276a71b395b6428081bf825b8 (diff)
downloadcpython-f95a1b3c53bdd678b64aa608d4375660033460c3.zip
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Recorded merge of revisions 81029 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk ........ r81029 | antoine.pitrou | 2010-05-09 16:46:46 +0200 (dim., 09 mai 2010) | 3 lines Untabify C files. Will watch buildbots. ........
Diffstat (limited to 'PC/getpathp.c')
-rw-r--r--PC/getpathp.c910
1 files changed, 455 insertions, 455 deletions
diff --git a/PC/getpathp.c b/PC/getpathp.c
index 212f942..0fe04c7 100644
--- a/PC/getpathp.c
+++ b/PC/getpathp.c
@@ -4,8 +4,8 @@
/* ----------------------------------------------------------------
PATH RULES FOR WINDOWS:
- This describes how sys.path is formed on Windows. It describes the
- functionality, not the implementation (ie, the order in which these
+ This describes how sys.path is formed on Windows. It describes the
+ functionality, not the implementation (ie, the order in which these
are actually fetched is different)
* Python always adds an empty entry at the start, which corresponds
@@ -24,15 +24,15 @@
* We attempt to locate the "Python Home" - if the PYTHONHOME env var
is set, we believe it. Otherwise, we use the path of our host .EXE's
to try and locate our "landmark" (lib\\os.py) and deduce our home.
- - If we DO have a Python Home: The relevant sub-directories (Lib,
+ - If we DO have a Python Home: The relevant sub-directories (Lib,
plat-win, etc) are based on the Python Home
- If we DO NOT have a Python Home, the core Python Path is
- loaded from the registry. This is the main PythonPath key,
+ loaded from the registry. This is the main PythonPath key,
and both HKLM and HKCU are combined to form the path)
* Iff - we can not locate the Python Home, have not had a PYTHONPATH
specified, and can't locate any Registry entries (ie, we have _nothing_
- we can assume is a good path), a default path with relative entries is
+ we can assume is a good path), a default path with relative entries is
used (eg. .\Lib;.\plat-win, etc)
@@ -42,9 +42,9 @@
the core path is deduced, and the core paths in the registry are
ignored. Other "application paths" in the registry are always read.
- * When Python is hosted in another exe (different directory, embedded via
+ * When Python is hosted in another exe (different directory, embedded via
COM, etc), the Python Home will not be deduced, so the core path from
- the registry is used. Other "application paths" in the registry are
+ the registry is used. Other "application paths" in the registry are
always read.
* If Python can't find its home and there is no registry (eg, frozen
@@ -92,12 +92,12 @@ static wchar_t *module_search_path = NULL;
static int
-is_sep(wchar_t ch) /* determine if "ch" is a separator character */
+is_sep(wchar_t ch) /* determine if "ch" is a separator character */
{
#ifdef ALTSEP
- return ch == SEP || ch == ALTSEP;
+ return ch == SEP || ch == ALTSEP;
#else
- return ch == SEP;
+ return ch == SEP;
#endif
}
@@ -107,35 +107,35 @@ is_sep(wchar_t ch) /* determine if "ch" is a separator character */
static void
reduce(wchar_t *dir)
{
- size_t i = wcslen(dir);
- while (i > 0 && !is_sep(dir[i]))
- --i;
- dir[i] = '\0';
+ size_t i = wcslen(dir);
+ while (i > 0 && !is_sep(dir[i]))
+ --i;
+ dir[i] = '\0';
}
-
+
static int
exists(wchar_t *filename)
{
- return GetFileAttributesW(filename) != 0xFFFFFFFF;
+ return GetFileAttributesW(filename) != 0xFFFFFFFF;
}
-/* Assumes 'filename' MAXPATHLEN+1 bytes long -
+/* Assumes 'filename' MAXPATHLEN+1 bytes long -
may extend 'filename' by one character.
*/
static int
-ismodule(wchar_t *filename) /* Is module -- check for .pyc/.pyo too */
+ismodule(wchar_t *filename) /* Is module -- check for .pyc/.pyo too */
{
- if (exists(filename))
- return 1;
-
- /* Check for the compiled version of prefix. */
- if (wcslen(filename) < MAXPATHLEN) {
- wcscat(filename, Py_OptimizeFlag ? L"o" : L"c");
- if (exists(filename))
- return 1;
- }
- return 0;
+ if (exists(filename))
+ return 1;
+
+ /* Check for the compiled version of prefix. */
+ if (wcslen(filename) < MAXPATHLEN) {
+ wcscat(filename, Py_OptimizeFlag ? L"o" : L"c");
+ if (exists(filename))
+ return 1;
+ }
+ return 0;
}
/* Add a path component, by appending stuff to buffer.
@@ -150,21 +150,21 @@ ismodule(wchar_t *filename) /* Is module -- check for .pyc/.pyo too */
static void
join(wchar_t *buffer, wchar_t *stuff)
{
- size_t n, k;
- if (is_sep(stuff[0]))
- n = 0;
- else {
- n = wcslen(buffer);
- if (n > 0 && !is_sep(buffer[n-1]) && n < MAXPATHLEN)
- buffer[n++] = SEP;
- }
- if (n > MAXPATHLEN)
- Py_FatalError("buffer overflow in getpathp.c's joinpath()");
- k = wcslen(stuff);
- if (n + k > MAXPATHLEN)
- k = MAXPATHLEN - n;
- wcsncpy(buffer+n, stuff, k);
- buffer[n+k] = '\0';
+ size_t n, k;
+ if (is_sep(stuff[0]))
+ n = 0;
+ else {
+ n = wcslen(buffer);
+ if (n > 0 && !is_sep(buffer[n-1]) && n < MAXPATHLEN)
+ buffer[n++] = SEP;
+ }
+ if (n > MAXPATHLEN)
+ Py_FatalError("buffer overflow in getpathp.c's joinpath()");
+ k = wcslen(stuff);
+ if (n + k > MAXPATHLEN)
+ k = MAXPATHLEN - n;
+ wcsncpy(buffer+n, stuff, k);
+ buffer[n+k] = '\0';
}
/* gotlandmark only called by search_for_prefix, which ensures
@@ -174,29 +174,29 @@ join(wchar_t *buffer, wchar_t *stuff)
static int
gotlandmark(wchar_t *landmark)
{
- int ok;
- Py_ssize_t n;
-
- n = wcslen(prefix);
- join(prefix, landmark);
- ok = ismodule(prefix);
- prefix[n] = '\0';
- return ok;
+ int ok;
+ Py_ssize_t n;
+
+ n = wcslen(prefix);
+ join(prefix, landmark);
+ ok = ismodule(prefix);
+ prefix[n] = '\0';
+ return ok;
}
-/* assumes argv0_path is MAXPATHLEN+1 bytes long, already \0 term'd.
+/* assumes argv0_path is MAXPATHLEN+1 bytes long, already \0 term'd.
assumption provided by only caller, calculate_path() */
static int
search_for_prefix(wchar_t *argv0_path, wchar_t *landmark)
{
- /* Search from argv0_path, until landmark is found */
- wcscpy(prefix, argv0_path);
- do {
- if (gotlandmark(landmark))
- return 1;
- reduce(prefix);
- } while (prefix[0]);
- return 0;
+ /* Search from argv0_path, until landmark is found */
+ wcscpy(prefix, argv0_path);
+ do {
+ if (gotlandmark(landmark))
+ return 1;
+ reduce(prefix);
+ } while (prefix[0]);
+ return 0;
}
#ifdef MS_WINDOWS
@@ -222,133 +222,133 @@ extern const char *PyWin_DLLVersionString;
static wchar_t *
getpythonregpath(HKEY keyBase, int skipcore)
{
- HKEY newKey = 0;
- DWORD dataSize = 0;
- DWORD numKeys = 0;
- LONG rc;
- wchar_t *retval = NULL;
- WCHAR *dataBuf = NULL;
- static const WCHAR keyPrefix[] = L"Software\\Python\\PythonCore\\";
- static const WCHAR keySuffix[] = L"\\PythonPath";
- size_t versionLen;
- DWORD index;
- WCHAR *keyBuf = NULL;
- WCHAR *keyBufPtr;
- WCHAR **ppPaths = NULL;
-
- /* Tried to use sysget("winver") but here is too early :-( */
- versionLen = strlen(PyWin_DLLVersionString);
- /* Space for all the chars, plus one \0 */
- keyBuf = keyBufPtr = malloc(sizeof(keyPrefix) +
- sizeof(WCHAR)*(versionLen-1) +
- sizeof(keySuffix));
- if (keyBuf==NULL) goto done;
-
- memcpy(keyBufPtr, keyPrefix, sizeof(keyPrefix)-sizeof(WCHAR));
- keyBufPtr += sizeof(keyPrefix)/sizeof(WCHAR) - 1;
- mbstowcs(keyBufPtr, PyWin_DLLVersionString, versionLen);
- keyBufPtr += versionLen;
- /* NULL comes with this one! */
- memcpy(keyBufPtr, keySuffix, sizeof(keySuffix));
- /* Open the root Python key */
- rc=RegOpenKeyExW(keyBase,
- keyBuf, /* subkey */
- 0, /* reserved */
- KEY_READ,
- &newKey);
- if (rc!=ERROR_SUCCESS) goto done;
- /* Find out how big our core buffer is, and how many subkeys we have */
- rc = RegQueryInfoKey(newKey, NULL, NULL, NULL, &numKeys, NULL, NULL,
- NULL, NULL, &dataSize, NULL, NULL);
- if (rc!=ERROR_SUCCESS) goto done;
- if (skipcore) dataSize = 0; /* Only count core ones if we want them! */
- /* Allocate a temp array of char buffers, so we only need to loop
- reading the registry once
- */
- ppPaths = malloc( sizeof(WCHAR *) * numKeys );
- if (ppPaths==NULL) goto done;
- memset(ppPaths, 0, sizeof(WCHAR *) * numKeys);
- /* Loop over all subkeys, allocating a temp sub-buffer. */
- for(index=0;index<numKeys;index++) {
- WCHAR keyBuf[MAX_PATH+1];
- HKEY subKey = 0;
- DWORD reqdSize = MAX_PATH+1;
- /* Get the sub-key name */
- DWORD rc = RegEnumKeyExW(newKey, index, keyBuf, &reqdSize,
- NULL, NULL, NULL, NULL );
- if (rc!=ERROR_SUCCESS) goto done;
- /* Open the sub-key */
- rc=RegOpenKeyExW(newKey,
- keyBuf, /* subkey */
- 0, /* reserved */
- KEY_READ,
- &subKey);
- if (rc!=ERROR_SUCCESS) goto done;
- /* Find the value of the buffer size, malloc, then read it */
- RegQueryValueExW(subKey, NULL, 0, NULL, NULL, &reqdSize);
- if (reqdSize) {
- ppPaths[index] = malloc(reqdSize);
- if (ppPaths[index]) {
- RegQueryValueExW(subKey, NULL, 0, NULL,
- (LPBYTE)ppPaths[index],
- &reqdSize);
- dataSize += reqdSize + 1; /* 1 for the ";" */
- }
- }
- RegCloseKey(subKey);
- }
-
- /* return null if no path to return */
- if (dataSize == 0) goto done;
-
- /* original datasize from RegQueryInfo doesn't include the \0 */
- dataBuf = malloc((dataSize+1) * sizeof(WCHAR));
- if (dataBuf) {
- WCHAR *szCur = dataBuf;
- DWORD reqdSize = dataSize;
- /* Copy our collected strings */
- for (index=0;index<numKeys;index++) {
- if (index > 0) {
- *(szCur++) = L';';
- dataSize--;
- }
- if (ppPaths[index]) {
- Py_ssize_t len = wcslen(ppPaths[index]);
- wcsncpy(szCur, ppPaths[index], len);
- szCur += len;
- assert(dataSize > (DWORD)len);
- dataSize -= (DWORD)len;
- }
- }
- if (skipcore)
- *szCur = '\0';
- else {
- /* If we have no values, we dont need a ';' */
- if (numKeys) {
- *(szCur++) = L';';
- dataSize--;
- }
- /* Now append the core path entries -
- this will include the NULL
- */
- rc = RegQueryValueExW(newKey, NULL, 0, NULL,
- (LPBYTE)szCur, &dataSize);
- }
- /* And set the result - caller must free */
- retval = dataBuf;
- }
+ HKEY newKey = 0;
+ DWORD dataSize = 0;
+ DWORD numKeys = 0;
+ LONG rc;
+ wchar_t *retval = NULL;
+ WCHAR *dataBuf = NULL;
+ static const WCHAR keyPrefix[] = L"Software\\Python\\PythonCore\\";
+ static const WCHAR keySuffix[] = L"\\PythonPath";
+ size_t versionLen;
+ DWORD index;
+ WCHAR *keyBuf = NULL;
+ WCHAR *keyBufPtr;
+ WCHAR **ppPaths = NULL;
+
+ /* Tried to use sysget("winver") but here is too early :-( */
+ versionLen = strlen(PyWin_DLLVersionString);
+ /* Space for all the chars, plus one \0 */
+ keyBuf = keyBufPtr = malloc(sizeof(keyPrefix) +
+ sizeof(WCHAR)*(versionLen-1) +
+ sizeof(keySuffix));
+ if (keyBuf==NULL) goto done;
+
+ memcpy(keyBufPtr, keyPrefix, sizeof(keyPrefix)-sizeof(WCHAR));
+ keyBufPtr += sizeof(keyPrefix)/sizeof(WCHAR) - 1;
+ mbstowcs(keyBufPtr, PyWin_DLLVersionString, versionLen);
+ keyBufPtr += versionLen;
+ /* NULL comes with this one! */
+ memcpy(keyBufPtr, keySuffix, sizeof(keySuffix));
+ /* Open the root Python key */
+ rc=RegOpenKeyExW(keyBase,
+ keyBuf, /* subkey */
+ 0, /* reserved */
+ KEY_READ,
+ &newKey);
+ if (rc!=ERROR_SUCCESS) goto done;
+ /* Find out how big our core buffer is, and how many subkeys we have */
+ rc = RegQueryInfoKey(newKey, NULL, NULL, NULL, &numKeys, NULL, NULL,
+ NULL, NULL, &dataSize, NULL, NULL);
+ if (rc!=ERROR_SUCCESS) goto done;
+ if (skipcore) dataSize = 0; /* Only count core ones if we want them! */
+ /* Allocate a temp array of char buffers, so we only need to loop
+ reading the registry once
+ */
+ ppPaths = malloc( sizeof(WCHAR *) * numKeys );
+ if (ppPaths==NULL) goto done;
+ memset(ppPaths, 0, sizeof(WCHAR *) * numKeys);
+ /* Loop over all subkeys, allocating a temp sub-buffer. */
+ for(index=0;index<numKeys;index++) {
+ WCHAR keyBuf[MAX_PATH+1];
+ HKEY subKey = 0;
+ DWORD reqdSize = MAX_PATH+1;
+ /* Get the sub-key name */
+ DWORD rc = RegEnumKeyExW(newKey, index, keyBuf, &reqdSize,
+ NULL, NULL, NULL, NULL );
+ if (rc!=ERROR_SUCCESS) goto done;
+ /* Open the sub-key */
+ rc=RegOpenKeyExW(newKey,
+ keyBuf, /* subkey */
+ 0, /* reserved */
+ KEY_READ,
+ &subKey);
+ if (rc!=ERROR_SUCCESS) goto done;
+ /* Find the value of the buffer size, malloc, then read it */
+ RegQueryValueExW(subKey, NULL, 0, NULL, NULL, &reqdSize);
+ if (reqdSize) {
+ ppPaths[index] = malloc(reqdSize);
+ if (ppPaths[index]) {
+ RegQueryValueExW(subKey, NULL, 0, NULL,
+ (LPBYTE)ppPaths[index],
+ &reqdSize);
+ dataSize += reqdSize + 1; /* 1 for the ";" */
+ }
+ }
+ RegCloseKey(subKey);
+ }
+
+ /* return null if no path to return */
+ if (dataSize == 0) goto done;
+
+ /* original datasize from RegQueryInfo doesn't include the \0 */
+ dataBuf = malloc((dataSize+1) * sizeof(WCHAR));
+ if (dataBuf) {
+ WCHAR *szCur = dataBuf;
+ DWORD reqdSize = dataSize;
+ /* Copy our collected strings */
+ for (index=0;index<numKeys;index++) {
+ if (index > 0) {
+ *(szCur++) = L';';
+ dataSize--;
+ }
+ if (ppPaths[index]) {
+ Py_ssize_t len = wcslen(ppPaths[index]);
+ wcsncpy(szCur, ppPaths[index], len);
+ szCur += len;
+ assert(dataSize > (DWORD)len);
+ dataSize -= (DWORD)len;
+ }
+ }
+ if (skipcore)
+ *szCur = '\0';
+ else {
+ /* If we have no values, we dont need a ';' */
+ if (numKeys) {
+ *(szCur++) = L';';
+ dataSize--;
+ }
+ /* Now append the core path entries -
+ this will include the NULL
+ */
+ rc = RegQueryValueExW(newKey, NULL, 0, NULL,
+ (LPBYTE)szCur, &dataSize);
+ }
+ /* And set the result - caller must free */
+ retval = dataBuf;
+ }
done:
- /* Loop freeing my temp buffers */
- if (ppPaths) {
- for(index=0;index<numKeys;index++)
- if (ppPaths[index]) free(ppPaths[index]);
- free(ppPaths);
- }
- if (newKey)
- RegCloseKey(newKey);
- if (keyBuf)
- free(keyBuf);
- return retval;
+ /* Loop freeing my temp buffers */
+ if (ppPaths) {
+ for(index=0;index<numKeys;index++)
+ if (ppPaths[index]) free(ppPaths[index]);
+ free(ppPaths);
+ }
+ if (newKey)
+ RegCloseKey(newKey);
+ if (keyBuf)
+ free(keyBuf);
+ return retval;
}
#endif /* Py_ENABLE_SHARED */
#endif /* MS_WINDOWS */
@@ -356,299 +356,299 @@ done:
static void
get_progpath(void)
{
- extern wchar_t *Py_GetProgramName(void);
- wchar_t *path = _wgetenv(L"PATH");
- wchar_t *prog = Py_GetProgramName();
+ extern wchar_t *Py_GetProgramName(void);
+ wchar_t *path = _wgetenv(L"PATH");
+ wchar_t *prog = Py_GetProgramName();
#ifdef MS_WINDOWS
#ifdef Py_ENABLE_SHARED
- extern HANDLE PyWin_DLLhModule;
- /* static init of progpath ensures final char remains \0 */
- if (PyWin_DLLhModule)
- if (!GetModuleFileNameW(PyWin_DLLhModule, dllpath, MAXPATHLEN))
- dllpath[0] = 0;
+ extern HANDLE PyWin_DLLhModule;
+ /* static init of progpath ensures final char remains \0 */
+ if (PyWin_DLLhModule)
+ if (!GetModuleFileNameW(PyWin_DLLhModule, dllpath, MAXPATHLEN))
+ dllpath[0] = 0;
#else
- dllpath[0] = 0;
+ dllpath[0] = 0;
#endif
- if (GetModuleFileNameW(NULL, progpath, MAXPATHLEN))
- return;
+ if (GetModuleFileNameW(NULL, progpath, MAXPATHLEN))
+ return;
#endif
- if (prog == NULL || *prog == '\0')
- prog = L"python";
-
- /* If there is no slash in the argv0 path, then we have to
- * assume python is on the user's $PATH, since there's no
- * other way to find a directory to start the search from. If
- * $PATH isn't exported, you lose.
- */
+ if (prog == NULL || *prog == '\0')
+ prog = L"python";
+
+ /* If there is no slash in the argv0 path, then we have to
+ * assume python is on the user's $PATH, since there's no
+ * other way to find a directory to start the search from. If
+ * $PATH isn't exported, you lose.
+ */
#ifdef ALTSEP
- if (wcschr(prog, SEP) || wcschr(prog, ALTSEP))
+ if (wcschr(prog, SEP) || wcschr(prog, ALTSEP))
#else
- if (wcschr(prog, SEP))
+ if (wcschr(prog, SEP))
#endif
- wcsncpy(progpath, prog, MAXPATHLEN);
- else if (path) {
- while (1) {
- wchar_t *delim = wcschr(path, DELIM);
-
- if (delim) {
- size_t len = delim - path;
- /* ensure we can't overwrite buffer */
- len = min(MAXPATHLEN,len);
- wcsncpy(progpath, path, len);
- *(progpath + len) = '\0';
- }
- else
- wcsncpy(progpath, path, MAXPATHLEN);
-
- /* join() is safe for MAXPATHLEN+1 size buffer */
- join(progpath, prog);
- if (exists(progpath))
- break;
-
- if (!delim) {
- progpath[0] = '\0';
- break;
- }
- path = delim + 1;
- }
- }
- else
- progpath[0] = '\0';
+ wcsncpy(progpath, prog, MAXPATHLEN);
+ else if (path) {
+ while (1) {
+ wchar_t *delim = wcschr(path, DELIM);
+
+ if (delim) {
+ size_t len = delim - path;
+ /* ensure we can't overwrite buffer */
+ len = min(MAXPATHLEN,len);
+ wcsncpy(progpath, path, len);
+ *(progpath + len) = '\0';
+ }
+ else
+ wcsncpy(progpath, path, MAXPATHLEN);
+
+ /* join() is safe for MAXPATHLEN+1 size buffer */
+ join(progpath, prog);
+ if (exists(progpath))
+ break;
+
+ if (!delim) {
+ progpath[0] = '\0';
+ break;
+ }
+ path = delim + 1;
+ }
+ }
+ else
+ progpath[0] = '\0';
}
static void
calculate_path(void)
{
- wchar_t argv0_path[MAXPATHLEN+1];
- wchar_t *buf;
- size_t bufsz;
- wchar_t *pythonhome = Py_GetPythonHome();
- wchar_t *envpath = NULL;
+ wchar_t argv0_path[MAXPATHLEN+1];
+ wchar_t *buf;
+ size_t bufsz;
+ wchar_t *pythonhome = Py_GetPythonHome();
+ wchar_t *envpath = NULL;
#ifdef MS_WINDOWS
- int skiphome, skipdefault;
- wchar_t *machinepath = NULL;
- wchar_t *userpath = NULL;
- wchar_t zip_path[MAXPATHLEN+1];
- size_t len;
-
- if (!Py_IgnoreEnvironmentFlag) {
- envpath = _wgetenv(L"PYTHONPATH");
- }
+ int skiphome, skipdefault;
+ wchar_t *machinepath = NULL;
+ wchar_t *userpath = NULL;
+ wchar_t zip_path[MAXPATHLEN+1];
+ size_t len;
+
+ if (!Py_IgnoreEnvironmentFlag) {
+ envpath = _wgetenv(L"PYTHONPATH");
+ }
#else
- char *_envpath = Py_GETENV("PYTHONPATH");
- wchar_t wenvpath[MAXPATHLEN+1];
- if (_envpath) {
- size_t r = mbstowcs(wenvpath, _envpath, MAXPATHLEN+1);
- envpath = wenvpath;
- if (r == (size_t)-1 || r >= MAXPATHLEN)
- envpath = NULL;
- }
+ char *_envpath = Py_GETENV("PYTHONPATH");
+ wchar_t wenvpath[MAXPATHLEN+1];
+ if (_envpath) {
+ size_t r = mbstowcs(wenvpath, _envpath, MAXPATHLEN+1);
+ envpath = wenvpath;
+ if (r == (size_t)-1 || r >= MAXPATHLEN)
+ envpath = NULL;
+ }
#endif
- get_progpath();
- /* progpath guaranteed \0 terminated in MAXPATH+1 bytes. */
- wcscpy(argv0_path, progpath);
- reduce(argv0_path);
- if (pythonhome == NULL || *pythonhome == '\0') {
- if (search_for_prefix(argv0_path, LANDMARK))
- pythonhome = prefix;
- else
- pythonhome = NULL;
- }
- else
- wcsncpy(prefix, pythonhome, MAXPATHLEN);
+ get_progpath();
+ /* progpath guaranteed \0 terminated in MAXPATH+1 bytes. */
+ wcscpy(argv0_path, progpath);
+ reduce(argv0_path);
+ if (pythonhome == NULL || *pythonhome == '\0') {
+ if (search_for_prefix(argv0_path, LANDMARK))
+ pythonhome = prefix;
+ else
+ pythonhome = NULL;
+ }
+ else
+ wcsncpy(prefix, pythonhome, MAXPATHLEN);
- if (envpath && *envpath == '\0')
- envpath = NULL;
+ if (envpath && *envpath == '\0')
+ envpath = NULL;
#ifdef MS_WINDOWS
- /* Calculate zip archive path */
- if (dllpath[0]) /* use name of python DLL */
- wcsncpy(zip_path, dllpath, MAXPATHLEN);
- else /* use name of executable program */
- wcsncpy(zip_path, progpath, MAXPATHLEN);
- zip_path[MAXPATHLEN] = '\0';
- len = wcslen(zip_path);
- if (len > 4) {
- zip_path[len-3] = 'z'; /* change ending to "zip" */
- zip_path[len-2] = 'i';
- zip_path[len-1] = 'p';
- }
- else {
- zip_path[0] = 0;
- }
-
- skiphome = pythonhome==NULL ? 0 : 1;
+ /* Calculate zip archive path */
+ if (dllpath[0]) /* use name of python DLL */
+ wcsncpy(zip_path, dllpath, MAXPATHLEN);
+ else /* use name of executable program */
+ wcsncpy(zip_path, progpath, MAXPATHLEN);
+ zip_path[MAXPATHLEN] = '\0';
+ len = wcslen(zip_path);
+ if (len > 4) {
+ zip_path[len-3] = 'z'; /* change ending to "zip" */
+ zip_path[len-2] = 'i';
+ zip_path[len-1] = 'p';
+ }
+ else {
+ zip_path[0] = 0;
+ }
+
+ skiphome = pythonhome==NULL ? 0 : 1;
#ifdef Py_ENABLE_SHARED
- machinepath = getpythonregpath(HKEY_LOCAL_MACHINE, skiphome);
- userpath = getpythonregpath(HKEY_CURRENT_USER, skiphome);
+ machinepath = getpythonregpath(HKEY_LOCAL_MACHINE, skiphome);
+ userpath = getpythonregpath(HKEY_CURRENT_USER, skiphome);
#endif
- /* We only use the default relative PYTHONPATH if we havent
- anything better to use! */
- skipdefault = envpath!=NULL || pythonhome!=NULL || \
- machinepath!=NULL || userpath!=NULL;
+ /* We only use the default relative PYTHONPATH if we havent
+ anything better to use! */
+ skipdefault = envpath!=NULL || pythonhome!=NULL || \
+ machinepath!=NULL || userpath!=NULL;
#endif
- /* We need to construct a path from the following parts.
- (1) the PYTHONPATH environment variable, if set;
- (2) for Win32, the zip archive file path;
- (3) for Win32, the machinepath and userpath, if set;
- (4) the PYTHONPATH config macro, with the leading "."
- of each component replaced with pythonhome, if set;
- (5) the directory containing the executable (argv0_path).
- The length calculation calculates #4 first.
- Extra rules:
- - If PYTHONHOME is set (in any way) item (3) is ignored.
- - If registry values are used, (4) and (5) are ignored.
- */
-
- /* Calculate size of return buffer */
- if (pythonhome != NULL) {
- wchar_t *p;
- bufsz = 1;
- for (p = PYTHONPATH; *p; p++) {
- if (*p == DELIM)
- bufsz++; /* number of DELIM plus one */
- }
- bufsz *= wcslen(pythonhome);
- }
- else
- bufsz = 0;
- bufsz += wcslen(PYTHONPATH) + 1;
- bufsz += wcslen(argv0_path) + 1;
+ /* We need to construct a path from the following parts.
+ (1) the PYTHONPATH environment variable, if set;
+ (2) for Win32, the zip archive file path;
+ (3) for Win32, the machinepath and userpath, if set;
+ (4) the PYTHONPATH config macro, with the leading "."
+ of each component replaced with pythonhome, if set;
+ (5) the directory containing the executable (argv0_path).
+ The length calculation calculates #4 first.
+ Extra rules:
+ - If PYTHONHOME is set (in any way) item (3) is ignored.
+ - If registry values are used, (4) and (5) are ignored.
+ */
+
+ /* Calculate size of return buffer */
+ if (pythonhome != NULL) {
+ wchar_t *p;
+ bufsz = 1;
+ for (p = PYTHONPATH; *p; p++) {
+ if (*p == DELIM)
+ bufsz++; /* number of DELIM plus one */
+ }
+ bufsz *= wcslen(pythonhome);
+ }
+ else
+ bufsz = 0;
+ bufsz += wcslen(PYTHONPATH) + 1;
+ bufsz += wcslen(argv0_path) + 1;
#ifdef MS_WINDOWS
- if (userpath)
- bufsz += wcslen(userpath) + 1;
- if (machinepath)
- bufsz += wcslen(machinepath) + 1;
- bufsz += wcslen(zip_path) + 1;
+ if (userpath)
+ bufsz += wcslen(userpath) + 1;
+ if (machinepath)
+ bufsz += wcslen(machinepath) + 1;
+ bufsz += wcslen(zip_path) + 1;
#endif
- if (envpath != NULL)
- bufsz += wcslen(envpath) + 1;
-
- module_search_path = buf = malloc(bufsz*sizeof(wchar_t));
- if (buf == NULL) {
- /* We can't exit, so print a warning and limp along */
- fprintf(stderr, "Can't malloc dynamic PYTHONPATH.\n");
- if (envpath) {
- fprintf(stderr, "Using environment $PYTHONPATH.\n");
- module_search_path = envpath;
- }
- else {
- fprintf(stderr, "Using default static path.\n");
- module_search_path = PYTHONPATH;
- }
+ if (envpath != NULL)
+ bufsz += wcslen(envpath) + 1;
+
+ module_search_path = buf = malloc(bufsz*sizeof(wchar_t));
+ if (buf == NULL) {
+ /* We can't exit, so print a warning and limp along */
+ fprintf(stderr, "Can't malloc dynamic PYTHONPATH.\n");
+ if (envpath) {
+ fprintf(stderr, "Using environment $PYTHONPATH.\n");
+ module_search_path = envpath;
+ }
+ else {
+ fprintf(stderr, "Using default static path.\n");
+ module_search_path = PYTHONPATH;
+ }
#ifdef MS_WINDOWS
- if (machinepath)
- free(machinepath);
- if (userpath)
- free(userpath);
+ if (machinepath)
+ free(machinepath);
+ if (userpath)
+ free(userpath);
#endif /* MS_WINDOWS */
- return;
- }
-
- if (envpath) {
- wcscpy(buf, envpath);
- buf = wcschr(buf, L'\0');
- *buf++ = DELIM;
- }
+ return;
+ }
+
+ if (envpath) {
+ wcscpy(buf, envpath);
+ buf = wcschr(buf, L'\0');
+ *buf++ = DELIM;
+ }
#ifdef MS_WINDOWS
- if (zip_path[0]) {
- wcscpy(buf, zip_path);
- buf = wcschr(buf, L'\0');
- *buf++ = DELIM;
- }
- if (userpath) {
- wcscpy(buf, userpath);
- buf = wcschr(buf, L'\0');
- *buf++ = DELIM;
- free(userpath);
- }
- if (machinepath) {
- wcscpy(buf, machinepath);
- buf = wcschr(buf, L'\0');
- *buf++ = DELIM;
- free(machinepath);
- }
- if (pythonhome == NULL) {
- if (!skipdefault) {
- wcscpy(buf, PYTHONPATH);
- buf = wcschr(buf, L'\0');
- }
- }
+ if (zip_path[0]) {
+ wcscpy(buf, zip_path);
+ buf = wcschr(buf, L'\0');
+ *buf++ = DELIM;
+ }
+ if (userpath) {
+ wcscpy(buf, userpath);
+ buf = wcschr(buf, L'\0');
+ *buf++ = DELIM;
+ free(userpath);
+ }
+ if (machinepath) {
+ wcscpy(buf, machinepath);
+ buf = wcschr(buf, L'\0');
+ *buf++ = DELIM;
+ free(machinepath);
+ }
+ if (pythonhome == NULL) {
+ if (!skipdefault) {
+ wcscpy(buf, PYTHONPATH);
+ buf = wcschr(buf, L'\0');
+ }
+ }
#else
- if (pythonhome == NULL) {
- wcscpy(buf, PYTHONPATH);
- buf = wcschr(buf, L'\0');
- }
+ if (pythonhome == NULL) {
+ wcscpy(buf, PYTHONPATH);
+ buf = wcschr(buf, L'\0');
+ }
#endif /* MS_WINDOWS */
- else {
- wchar_t *p = PYTHONPATH;
- wchar_t *q;
- size_t n;
- for (;;) {
- q = wcschr(p, DELIM);
- if (q == NULL)
- n = wcslen(p);
- else
- n = q-p;
- if (p[0] == '.' && is_sep(p[1])) {
- wcscpy(buf, pythonhome);
- buf = wcschr(buf, L'\0');
- p++;
- n--;
- }
- wcsncpy(buf, p, n);
- buf += n;
- if (q == NULL)
- break;
- *buf++ = DELIM;
- p = q+1;
- }
- }
- if (argv0_path) {
- *buf++ = DELIM;
- wcscpy(buf, argv0_path);
- buf = wcschr(buf, L'\0');
- }
- *buf = L'\0';
- /* Now to pull one last hack/trick. If sys.prefix is
- empty, then try and find it somewhere on the paths
- we calculated. We scan backwards, as our general policy
- is that Python core directories are at the *end* of
- sys.path. We assume that our "lib" directory is
- on the path, and that our 'prefix' directory is
- the parent of that.
- */
- if (*prefix==L'\0') {
- wchar_t lookBuf[MAXPATHLEN+1];
- wchar_t *look = buf - 1; /* 'buf' is at the end of the buffer */
- while (1) {
- Py_ssize_t nchars;
- wchar_t *lookEnd = look;
- /* 'look' will end up one character before the
- start of the path in question - even if this
- is one character before the start of the buffer
- */
- while (look >= module_search_path && *look != DELIM)
- look--;
- nchars = lookEnd-look;
- wcsncpy(lookBuf, look+1, nchars);
- lookBuf[nchars] = L'\0';
- /* Up one level to the parent */
- reduce(lookBuf);
- if (search_for_prefix(lookBuf, LANDMARK)) {
- break;
- }
- /* If we are out of paths to search - give up */
- if (look < module_search_path)
- break;
- look--;
- }
- }
+ else {
+ wchar_t *p = PYTHONPATH;
+ wchar_t *q;
+ size_t n;
+ for (;;) {
+ q = wcschr(p, DELIM);
+ if (q == NULL)
+ n = wcslen(p);
+ else
+ n = q-p;
+ if (p[0] == '.' && is_sep(p[1])) {
+ wcscpy(buf, pythonhome);
+ buf = wcschr(buf, L'\0');
+ p++;
+ n--;
+ }
+ wcsncpy(buf, p, n);
+ buf += n;
+ if (q == NULL)
+ break;
+ *buf++ = DELIM;
+ p = q+1;
+ }
+ }
+ if (argv0_path) {
+ *buf++ = DELIM;
+ wcscpy(buf, argv0_path);
+ buf = wcschr(buf, L'\0');
+ }
+ *buf = L'\0';
+ /* Now to pull one last hack/trick. If sys.prefix is
+ empty, then try and find it somewhere on the paths
+ we calculated. We scan backwards, as our general policy
+ is that Python core directories are at the *end* of
+ sys.path. We assume that our "lib" directory is
+ on the path, and that our 'prefix' directory is
+ the parent of that.
+ */
+ if (*prefix==L'\0') {
+ wchar_t lookBuf[MAXPATHLEN+1];
+ wchar_t *look = buf - 1; /* 'buf' is at the end of the buffer */
+ while (1) {
+ Py_ssize_t nchars;
+ wchar_t *lookEnd = look;
+ /* 'look' will end up one character before the
+ start of the path in question - even if this
+ is one character before the start of the buffer
+ */
+ while (look >= module_search_path && *look != DELIM)
+ look--;
+ nchars = lookEnd-look;
+ wcsncpy(lookBuf, look+1, nchars);
+ lookBuf[nchars] = L'\0';
+ /* Up one level to the parent */
+ reduce(lookBuf);
+ if (search_for_prefix(lookBuf, LANDMARK)) {
+ break;
+ }
+ /* If we are out of paths to search - give up */
+ if (look < module_search_path)
+ break;
+ look--;
+ }
+ }
}
@@ -657,29 +657,29 @@ calculate_path(void)
wchar_t *
Py_GetPath(void)
{
- if (!module_search_path)
- calculate_path();
- return module_search_path;
+ if (!module_search_path)
+ calculate_path();
+ return module_search_path;
}
wchar_t *
Py_GetPrefix(void)
{
- if (!module_search_path)
- calculate_path();
- return prefix;
+ if (!module_search_path)
+ calculate_path();
+ return prefix;
}
wchar_t *
Py_GetExecPrefix(void)
{
- return Py_GetPrefix();
+ return Py_GetPrefix();
}
wchar_t *
Py_GetProgramFullPath(void)
{
- if (!module_search_path)
- calculate_path();
- return progpath;
+ if (!module_search_path)
+ calculate_path();
+ return progpath;
}