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/***********************************************************
Copyright (c) 2000, BeOpen.com.
Copyright (c) 1995-2000, Corporation for National Research Initiatives.
Copyright (c) 1990-1995, Stichting Mathematisch Centrum.
All rights reserved.
See the file "Misc/COPYRIGHT" for information on usage and
redistribution of this file, and for a DISCLAIMER OF ALL WARRANTIES.
******************************************************************/
/* Support for dynamic loading of extension modules */
#include <windows.h>
#include <direct.h>
#include "Python.h"
#include "importdl.h"
const struct filedescr _PyImport_DynLoadFiletab[] = {
#ifdef _DEBUG
{"_d.pyd", "rb", C_EXTENSION},
{"_d.dll", "rb", C_EXTENSION},
#else
{".pyd", "rb", C_EXTENSION},
{".dll", "rb", C_EXTENSION},
#endif
{0, 0}
};
dl_funcptr _PyImport_GetDynLoadFunc(const char *fqname, const char *shortname,
const char *pathname, FILE *fp)
{
dl_funcptr p;
char funcname[258];
sprintf(funcname, "init%.200s", shortname);
#ifdef MS_WIN32
{
HINSTANCE hDLL;
char pathbuf[260];
if (strchr(pathname, '\\') == NULL &&
strchr(pathname, '/') == NULL)
{
/* Prefix bare filename with ".\" */
char *p = pathbuf;
*p = '\0';
_getcwd(pathbuf, sizeof pathbuf);
if (*p != '\0' && p[1] == ':')
p += 2;
sprintf(p, ".\\%-.255s", pathname);
pathname = pathbuf;
}
/* Look for dependent DLLs in directory of pathname first */
/* XXX This call doesn't exist in Windows CE */
hDLL = LoadLibraryEx(pathname, NULL,
LOAD_WITH_ALTERED_SEARCH_PATH);
if (hDLL==NULL){
char errBuf[256];
unsigned int errorCode;
/* Get an error string from Win32 error code */
char theInfo[256]; /* Pointer to error text
from system */
int theLength; /* Length of error text */
errorCode = GetLastError();
theLength = FormatMessage(
FORMAT_MESSAGE_FROM_SYSTEM, /* flags */
NULL, /* message source */
errorCode, /* the message (error) ID */
0, /* default language environment */
(LPTSTR) theInfo, /* the buffer */
sizeof(theInfo), /* the buffer size */
NULL); /* no additional format args. */
/* Problem: could not get the error message.
This should not happen if called correctly. */
if (theLength == 0) {
sprintf(errBuf,
"DLL load failed with error code %d",
errorCode);
} else {
size_t len;
/* For some reason a \r\n
is appended to the text */
if (theLength >= 2 &&
theInfo[theLength-2] == '\r' &&
theInfo[theLength-1] == '\n') {
theLength -= 2;
theInfo[theLength] = '\0';
}
strcpy(errBuf, "DLL load failed: ");
len = strlen(errBuf);
strncpy(errBuf+len, theInfo,
sizeof(errBuf)-len);
errBuf[sizeof(errBuf)-1] = '\0';
}
PyErr_SetString(PyExc_ImportError, errBuf);
return NULL;
}
p = GetProcAddress(hDLL, funcname);
}
#endif /* MS_WIN32 */
#ifdef MS_WIN16
{
HINSTANCE hDLL;
char pathbuf[16];
if (strchr(pathname, '\\') == NULL &&
strchr(pathname, '/') == NULL)
{
/* Prefix bare filename with ".\" */
sprintf(pathbuf, ".\\%-.13s", pathname);
pathname = pathbuf;
}
hDLL = LoadLibrary(pathname);
if (hDLL < HINSTANCE_ERROR){
char errBuf[256];
sprintf(errBuf,
"DLL load failed with error code %d", hDLL);
PyErr_SetString(PyExc_ImportError, errBuf);
return NULL;
}
p = GetProcAddress(hDLL, funcname);
}
#endif /* MS_WIN16 */
return p;
}
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