Staging
v0.5.1
v0.5.1
https://github.com/python/cpython
Revision 74f4bd53e03ded8408bcc2de67cf0f5a4ac5b1a1 authored by Barry Warsaw on 23 February 2012, 15:59:38 UTC, committed by Barry Warsaw on 23 February 2012, 15:59:38 UTC
release of 2.6 for 2012.
1 parent 1fbc16d
Tip revision: 74f4bd53e03ded8408bcc2de67cf0f5a4ac5b1a1 authored by Barry Warsaw on 23 February 2012, 15:59:38 UTC
Bump some more copyright years (as per PEP 101), since this is the first
Bump some more copyright years (as per PEP 101), since this is the first
Tip revision: 74f4bd5
import_nt.c
/********************************************************************
import_nt.c
Win32 specific import code.
*/
#include "Python.h"
#include "osdefs.h"
#include <windows.h>
#include "importdl.h"
#include "malloc.h" /* for alloca */
/* a string loaded from the DLL at startup */
extern const char *PyWin_DLLVersionString;
FILE *PyWin_FindRegisteredModule(const char *moduleName,
struct filedescr **ppFileDesc,
char *pathBuf,
Py_ssize_t pathLen)
{
char *moduleKey;
const char keyPrefix[] = "Software\\Python\\PythonCore\\";
const char keySuffix[] = "\\Modules\\";
#ifdef _DEBUG
/* In debugging builds, we _must_ have the debug version
* registered.
*/
const char debugString[] = "\\Debug";
#else
const char debugString[] = "";
#endif
struct filedescr *fdp = NULL;
FILE *fp;
HKEY keyBase = HKEY_CURRENT_USER;
int modNameSize;
long regStat;
/* Calculate the size for the sprintf buffer.
* Get the size of the chars only, plus 1 NULL.
*/
size_t bufSize = sizeof(keyPrefix)-1 +
strlen(PyWin_DLLVersionString) +
sizeof(keySuffix) +
strlen(moduleName) +
sizeof(debugString) - 1;
/* alloca == no free required, but memory only local to fn,
* also no heap fragmentation!
*/
moduleKey = alloca(bufSize);
PyOS_snprintf(moduleKey, bufSize,
"Software\\Python\\PythonCore\\%s\\Modules\\%s%s",
PyWin_DLLVersionString, moduleName, debugString);
assert(pathLen < INT_MAX);
modNameSize = (int)pathLen;
regStat = RegQueryValue(keyBase, moduleKey, pathBuf, &modNameSize);
if (regStat != ERROR_SUCCESS) {
/* No user setting - lookup in machine settings */
keyBase = HKEY_LOCAL_MACHINE;
/* be anal - failure may have reset size param */
modNameSize = (int)pathLen;
regStat = RegQueryValue(keyBase, moduleKey,
pathBuf, &modNameSize);
if (regStat != ERROR_SUCCESS)
return NULL;
}
/* use the file extension to locate the type entry. */
for (fdp = _PyImport_Filetab; fdp->suffix != NULL; fdp++) {
size_t extLen = strlen(fdp->suffix);
assert(modNameSize >= 0); /* else cast to size_t is wrong */
if ((size_t)modNameSize > extLen &&
strnicmp(pathBuf + ((size_t)modNameSize-extLen-1),
fdp->suffix,
extLen) == 0)
break;
}
if (fdp->suffix == NULL)
return NULL;
fp = fopen(pathBuf, fdp->mode);
if (fp != NULL)
*ppFileDesc = fdp;
return fp;
}
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