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