63 lines
1.7 KiB
C
63 lines
1.7 KiB
C
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/***
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*getproc.c - Get the address of a procedure in a DLL.
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*
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* Copyright (c) 1991-2001, Microsoft Corporation. All rights reserved.
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*
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*Purpose:
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* defines _getdllprocadd() - gets a procedure address by name or
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* ordinal
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*
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*Revision History:
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* 08-21-91 BWM Wrote module.
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* 09-30-93 GJF Resurrected for compatiblity with NT SDK.
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* 02-06-98 GJF Changes for Win64: changed return type to intptr_t.
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* 02-10-98 GJF Changes for Win64: changed 3rd arg type intptr_t.
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*
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*******************************************************************************/
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#include <cruntime.h>
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#include <oscalls.h>
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#include <process.h>
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/***
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*int (*)() _getdllprocaddr(handle, name, ordinal) - Get the address of a
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* DLL procedure specified by name or ordinal
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*
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*Purpose:
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*
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*Entry:
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* int handle - a DLL handle from _loaddll
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* char * name - Name of the procedure, or NULL to get by ordinal
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* int ordinal - Ordinal of the procedure, or -1 to get by name
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*
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*
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*Exit:
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* returns a pointer to the procedure if found
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* returns NULL if not found
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*
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*Exceptions:
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*
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*******************************************************************************/
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int (__cdecl * __cdecl _getdllprocaddr(
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intptr_t hMod,
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char * szProcName,
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intptr_t iOrdinal))()
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{
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typedef int (__cdecl * PFN)();
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if (szProcName == NULL) {
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if (iOrdinal <= 65535) {
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return ((PFN)GetProcAddress((HANDLE)hMod, (LPSTR)iOrdinal));
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}
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}
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else {
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if (iOrdinal == (intptr_t)(-1)) {
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return ((PFN)GetProcAddress((HANDLE)hMod, szProcName));
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}
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}
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return (NULL);
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}
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