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https://github.com/python/cpython.git
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Squash signed-vs-unsigned warning. Also edits to bring into line
with Python coding stds (max line length, C-style comments).
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parent
489d54ef66
commit
db6382941b
@ -8,19 +8,26 @@
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#include "Python.h"
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#include "osdefs.h"
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#include <assert.h>
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#include <windows.h>
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#include "importdl.h"
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#include "malloc.h" // for alloca
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#include "malloc.h" /* for alloca */
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extern const char *PyWin_DLLVersionString; // a string loaded from the DLL at startup.
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/* a string loaded from the DLL at startup */
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extern const char *PyWin_DLLVersionString;
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FILE *PyWin_FindRegisteredModule( const char *moduleName, struct filedescr **ppFileDesc, char *pathBuf, int pathLen)
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FILE *PyWin_FindRegisteredModule(const char *moduleName,
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struct filedescr **ppFileDesc,
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char *pathBuf,
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int pathLen)
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{
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char *moduleKey;
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const char keyPrefix[] = "Software\\Python\\PythonCore\\";
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const char keySuffix[] = "\\Modules\\";
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#ifdef _DEBUG
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// In debugging builds, we _must_ have the debug version registered.
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/* In debugging builds, we _must_ have the debug version
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* registered.
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*/
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const char debugString[] = "\\Debug";
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#else
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const char debugString[] = "";
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@ -31,28 +38,40 @@ FILE *PyWin_FindRegisteredModule( const char *moduleName, struct filedescr **ppF
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int modNameSize;
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long regStat;
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// Calculate the size for the sprintf buffer.
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// Get the size of the chars only, plus 1 NULL.
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size_t bufSize = sizeof(keyPrefix)-1 + strlen(PyWin_DLLVersionString) + sizeof(keySuffix) + strlen(moduleName) + sizeof(debugString) - 1;
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// alloca == no free required, but memory only local to fn, also no heap fragmentation!
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/* Calculate the size for the sprintf buffer.
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* Get the size of the chars only, plus 1 NULL.
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*/
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size_t bufSize = sizeof(keyPrefix)-1 +
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strlen(PyWin_DLLVersionString) +
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sizeof(keySuffix) +
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strlen(moduleName) +
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sizeof(debugString) - 1;
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/* alloca == no free required, but memory only local to fn,
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* also no heap fragmentation!
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*/
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moduleKey = alloca(bufSize);
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sprintf(moduleKey, "Software\\Python\\PythonCore\\%s\\Modules\\%s%s", PyWin_DLLVersionString, moduleName, debugString);
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sprintf(moduleKey,
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"Software\\Python\\PythonCore\\%s\\Modules\\%s%s",
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PyWin_DLLVersionString, moduleName, debugString);
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modNameSize = pathLen;
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regStat = RegQueryValue(keyBase, moduleKey, pathBuf, &modNameSize);
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if (regStat!=ERROR_SUCCESS)
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if (regStat != ERROR_SUCCESS)
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return NULL;
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// use the file extension to locate the type entry.
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/* use the file extension to locate the type entry. */
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for (fdp = _PyImport_Filetab; fdp->suffix != NULL; fdp++) {
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size_t extLen = strlen(fdp->suffix);
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if (modNameSize>extLen && strnicmp(pathBuf+(modNameSize-extLen-1),fdp->suffix,extLen)==0)
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assert(modNameSize >= 0); /* else cast to size_t is wrong */
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if ((size_t)modNameSize > extLen &&
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strnicmp(pathBuf + ((size_t)modNameSize-extLen-1),
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fdp->suffix,
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extLen) == 0)
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break;
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}
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if (fdp->suffix==NULL)
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if (fdp->suffix == NULL)
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return NULL;
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fp = fopen(pathBuf, fdp->mode);
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if (fp != NULL)
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*ppFileDesc = fdp;
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return fp;
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}
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