84 lines
1.9 KiB
C
84 lines
1.9 KiB
C
/*
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* 86Box A hypervisor and IBM PC system emulator that specializes in
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* running old operating systems and software designed for IBM
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* PC systems and compatibles from 1981 through fairly recent
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* system designs based on the PCI bus.
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*
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* This file is part of the 86Box distribution.
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*
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* Try to load a support DLL.
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*
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*
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*
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* Authors: Fred N. van Kempen, <decwiz@yahoo.com>
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*
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* Copyright 2017-2018 Fred N. van Kempen
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*/
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#include <stdarg.h>
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#include <stdint.h>
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#include <wchar.h>
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#include <windows.h>
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#define HAVE_STDARG_H
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#include <86box/86box.h>
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#include <86box/plat_dynld.h>
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#ifdef ENABLE_DYNLD_LOG
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int dynld_do_log = ENABLE_DYNLD_LOG;
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static void
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dynld_log(const char *fmt, ...)
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{
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va_list ap;
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if (dynld_do_log) {
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va_start(ap, fmt);
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pclog_ex(fmt, ap);
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va_end(ap);
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}
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}
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#else
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# define dynld_log(fmt, ...)
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#endif
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void *
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dynld_module(const char *name, dllimp_t *table)
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{
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HMODULE h;
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dllimp_t *imp;
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void *func;
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/* See if we can load the desired module. */
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if ((h = LoadLibrary(name)) == NULL) {
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dynld_log("DynLd(\"%s\"): library not found! (%08X)\n", name, GetLastError());
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return (NULL);
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}
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/* Now load the desired function pointers. */
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for (imp = table; imp->name != NULL; imp++) {
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func = GetProcAddress(h, imp->name);
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if (func == NULL) {
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dynld_log("DynLd(\"%s\"): function '%s' not found! (%08X)\n",
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name, imp->name, GetLastError());
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FreeLibrary(h);
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return (NULL);
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}
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/* To overcome typing issues.. */
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*(char **) imp->func = (char *) func;
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}
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/* All good. */
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dynld_log("loaded %s\n", name);
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return ((void *) h);
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}
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void
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dynld_close(void *handle)
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{
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if (handle != NULL)
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FreeLibrary((HMODULE) handle);
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}
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