-/* dso_win32.c */
-/* Written by Geoff Thorpe (geoff@geoffthorpe.net) for the OpenSSL
- * project 2000.
- */
-/* ====================================================================
- * Copyright (c) 2000 The OpenSSL Project. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- *
- * 3. All advertising materials mentioning features or use of this
- * software must display the following acknowledgment:
- * "This product includes software developed by the OpenSSL Project
- * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
- *
- * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
- * endorse or promote products derived from this software without
- * prior written permission. For written permission, please contact
- * licensing@OpenSSL.org.
- *
- * 5. Products derived from this software may not be called "OpenSSL"
- * nor may "OpenSSL" appear in their names without prior written
- * permission of the OpenSSL Project.
- *
- * 6. Redistributions of any form whatsoever must retain the following
- * acknowledgment:
- * "This product includes software developed by the OpenSSL Project
- * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
- *
- * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
- * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
- * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
- * OF THE POSSIBILITY OF SUCH DAMAGE.
- * ====================================================================
- *
- * This product includes cryptographic software written by Eric Young
- * (eay@cryptsoft.com). This product includes software written by Tim
- * Hudson (tjh@cryptsoft.com).
+/*
+ * Copyright 2000-2017 The OpenSSL Project Authors. All Rights Reserved.
*
+ * Licensed under the OpenSSL license (the "License"). You may not use
+ * this file except in compliance with the License. You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
*/
-#include <stdio.h>
-#include <string.h>
-#include "cryptlib.h"
-#include <openssl/dso.h>
+#include "e_os.h"
+#include "dso_locl.h"
+
+#if defined(DSO_WIN32)
+
+# ifdef _WIN32_WCE
+# if _WIN32_WCE < 300
+static FARPROC GetProcAddressA(HMODULE hModule, LPCSTR lpProcName)
+{
+ WCHAR lpProcNameW[64];
+ int i;
+
+ for (i = 0; lpProcName[i] && i < 64; i++)
+ lpProcNameW[i] = (WCHAR)lpProcName[i];
+ if (i == 64)
+ return NULL;
+ lpProcNameW[i] = 0;
+
+ return GetProcAddressW(hModule, lpProcNameW);
+}
+# endif
+# undef GetProcAddress
+# define GetProcAddress GetProcAddressA
+
+static HINSTANCE LoadLibraryA(LPCSTR lpLibFileName)
+{
+ WCHAR *fnamw;
+ size_t len_0 = strlen(lpLibFileName) + 1, i;
+
+# ifdef _MSC_VER
+ fnamw = (WCHAR *)_alloca(len_0 * sizeof(WCHAR));
+# else
+ fnamw = (WCHAR *)alloca(len_0 * sizeof(WCHAR));
+# endif
+ if (fnamw == NULL) {
+ SetLastError(ERROR_NOT_ENOUGH_MEMORY);
+ return NULL;
+ }
+# if defined(_WIN32_WCE) && _WIN32_WCE>=101
+ if (!MultiByteToWideChar(CP_ACP, 0, lpLibFileName, len_0, fnamw, len_0))
+# endif
+ for (i = 0; i < len_0; i++)
+ fnamw[i] = (WCHAR)lpLibFileName[i];
-#ifndef WIN32
-DSO_METHOD *DSO_METHOD_win32(void)
- {
- return NULL;
- }
-#else
+ return LoadLibraryW(fnamw);
+}
+# endif
/* Part of the hack in "win32_load" ... */
-#define DSO_MAX_TRANSLATED_SIZE 256
+# define DSO_MAX_TRANSLATED_SIZE 256
-static int win32_load(DSO *dso, const char *filename);
+static int win32_load(DSO *dso);
static int win32_unload(DSO *dso);
-static int win32_bind(DSO *dso, const char *symname, void **symptr);
-#if 0
-static int win32_unbind(DSO *dso, char *symname, void *symptr);
-static int win32_init(DSO *dso);
-static int win32_finish(DSO *dso);
-#endif
-static long win32_ctrl(DSO *dso, int cmd, long larg, void *parg);
+static DSO_FUNC_TYPE win32_bind_func(DSO *dso, const char *symname);
+static char *win32_name_converter(DSO *dso, const char *filename);
+static char *win32_merger(DSO *dso, const char *filespec1,
+ const char *filespec2);
+static void *win32_globallookup(const char *name);
+
+static const char *openssl_strnchr(const char *string, int c, size_t len);
static DSO_METHOD dso_meth_win32 = {
- "OpenSSL 'win32' shared library method",
- win32_load,
- win32_unload,
- win32_bind,
-/* For now, "unbind" doesn't exist */
-#if 0
- NULL, /* unbind */
-#endif
- win32_ctrl,
- NULL, /* init */
- NULL /* finish */
- };
-
-DSO_METHOD *DSO_METHOD_win32(void)
- {
- return(&dso_meth_win32);
- }
-
-/* For this DSO_METHOD, our meth_data STACK will contain;
- * (i) a pointer to the handle (HINSTANCE) returned from
- * LoadLibrary(), and copied.
+ "OpenSSL 'win32' shared library method",
+ win32_load,
+ win32_unload,
+ win32_bind_func,
+ NULL, /* ctrl */
+ win32_name_converter,
+ win32_merger,
+ NULL, /* init */
+ NULL, /* finish */
+ NULL, /* pathbyaddr */
+ win32_globallookup
+};
+
+DSO_METHOD *DSO_METHOD_openssl(void)
+{
+ return &dso_meth_win32;
+}
+
+/*
+ * For this DSO_METHOD, our meth_data STACK will contain; (i) a pointer to
+ * the handle (HINSTANCE) returned from LoadLibrary(), and copied.
*/
-static int win32_load(DSO *dso, const char *filename)
- {
- HINSTANCE h, *p;
- char translated[DSO_MAX_TRANSLATED_SIZE];
- int len;
-
- /* NB: This is a hideous hack, but I'm not yet sure what
- * to replace it with. This attempts to convert any filename,
- * that looks like it has no path information, into a
- * translated form, e. "blah" -> "blah.dll" ... I'm more
- * comfortable putting hacks into win32 code though ;-) */
- len = strlen(filename);
- if((dso->flags & DSO_FLAG_NAME_TRANSLATION) &&
- (len + 4 < DSO_MAX_TRANSLATED_SIZE) &&
- (strstr(filename, "/") == NULL)
- (strstr(filename, "\\") == NULL)
- (strstr(filename, ":") == NULL))
- {
- sprintf(translated, "%s.dll", filename);
- h = LoadLibrary(translated);
- }
- else
- h = LoadLibrary(filename);
- if(h == NULL)
- {
- DSOerr(DSO_F_WIN32_LOAD,DSO_R_LOAD_FAILED);
- return(0);
- }
- p = (HINSTANCE *)Malloc(sizeof(HINSTANCE));
- if(p == NULL)
- {
- DSOerr(DSO_F_WIN32_LOAD,ERR_R_MALLOC_FAILURE);
- FreeLibrary(h);
- return(0);
- }
- *p = h;
- if(!sk_push(dso->meth_data, (char *)p))
- {
- DSOerr(DSO_F_WIN32_LOAD,DSO_R_STACK_ERROR);
- FreeLibrary(h);
- Free(p);
- return(0);
- }
- return(1);
- }
+static int win32_load(DSO *dso)
+{
+ HINSTANCE h = NULL, *p = NULL;
+ /* See applicable comments from dso_dl.c */
+ char *filename = DSO_convert_filename(dso, NULL);
+
+ if (filename == NULL) {
+ DSOerr(DSO_F_WIN32_LOAD, DSO_R_NO_FILENAME);
+ goto err;
+ }
+ h = LoadLibraryA(filename);
+ if (h == NULL) {
+ DSOerr(DSO_F_WIN32_LOAD, DSO_R_LOAD_FAILED);
+ ERR_add_error_data(3, "filename(", filename, ")");
+ goto err;
+ }
+ p = OPENSSL_malloc(sizeof(*p));
+ if (p == NULL) {
+ DSOerr(DSO_F_WIN32_LOAD, ERR_R_MALLOC_FAILURE);
+ goto err;
+ }
+ *p = h;
+ if (!sk_void_push(dso->meth_data, p)) {
+ DSOerr(DSO_F_WIN32_LOAD, DSO_R_STACK_ERROR);
+ goto err;
+ }
+ /* Success */
+ dso->loaded_filename = filename;
+ return (1);
+ err:
+ /* Cleanup ! */
+ OPENSSL_free(filename);
+ OPENSSL_free(p);
+ if (h != NULL)
+ FreeLibrary(h);
+ return (0);
+}
static int win32_unload(DSO *dso)
- {
- HINSTANCE *p;
- if(dso == NULL)
- {
- DSOerr(DSO_F_WIN32_UNLOAD,ERR_R_PASSED_NULL_PARAMETER);
- return(0);
- }
- if(sk_num(dso->meth_data) < 1)
- return(1);
- p = (HINSTANCE *)sk_pop(dso->meth_data);
- if(p == NULL)
- {
- DSOerr(DSO_F_WIN32_UNLOAD,DSO_R_NULL_HANDLE);
- return(0);
- }
- if(!FreeLibrary(p))
- {
- DSOerr(DSO_F_WIN32_UNLOAD,DSO_R_UNLOAD_FAILED);
- /* We should push the value back onto the stack in
- * case of a retry. */
- sk_push(dso->meth_data, (char *)p);
- return(0);
- }
- /* Cleanup */
- Free(p);
- return(1);
- }
-
-static int win32_bind(DSO *dso, const char *symname, void **symptr)
- {
- HINSTANCE *ptr;
- void *sym;
-
- if((dso == NULL) || (symptr == NULL) || (symname == NULL))
- {
- DSOerr(DSO_F_WIN32_BIND,ERR_R_PASSED_NULL_PARAMETER);
- return(0);
- }
- if(sk_num(dso->meth_data) < 1)
- {
- DSOerr(DSO_F_WIN32_BIND,DSO_R_STACK_ERROR);
- return(0);
- }
- ptr = (HINSTANCE *)sk_value(dso->meth_data, sk_num(dso->meth_data) - 1);
- if(ptr == NULL)
- {
- DSOerr(DSO_F_WIN32_BIND,DSO_R_NULL_HANDLE);
- return(0);
- }
- sym = GetProcAddress(*ptr, symname);
- if(sym == NULL)
- {
- DSOerr(DSO_F_WIN32_BIND,DSO_R_SYM_FAILURE);
- return(0);
- }
- *symptr = sym;
- return(1);
- }
-
-static int win32_ctrl(DSO *dso, int cmd, long larg, void *parg)
- {
- if(dso == NULL)
- {
- DSOerr(DSO_F_WIN32_CTRL,ERR_R_PASSED_NULL_PARAMETER);
- return(-1);
+{
+ HINSTANCE *p;
+ if (dso == NULL) {
+ DSOerr(DSO_F_WIN32_UNLOAD, ERR_R_PASSED_NULL_PARAMETER);
+ return (0);
+ }
+ if (sk_void_num(dso->meth_data) < 1)
+ return (1);
+ p = sk_void_pop(dso->meth_data);
+ if (p == NULL) {
+ DSOerr(DSO_F_WIN32_UNLOAD, DSO_R_NULL_HANDLE);
+ return (0);
+ }
+ if (!FreeLibrary(*p)) {
+ DSOerr(DSO_F_WIN32_UNLOAD, DSO_R_UNLOAD_FAILED);
+ /*
+ * We should push the value back onto the stack in case of a retry.
+ */
+ sk_void_push(dso->meth_data, p);
+ return (0);
+ }
+ /* Cleanup */
+ OPENSSL_free(p);
+ return (1);
+}
+
+static DSO_FUNC_TYPE win32_bind_func(DSO *dso, const char *symname)
+{
+ HINSTANCE *ptr;
+ union {
+ void *p;
+ FARPROC f;
+ } sym;
+
+ if ((dso == NULL) || (symname == NULL)) {
+ DSOerr(DSO_F_WIN32_BIND_FUNC, ERR_R_PASSED_NULL_PARAMETER);
+ return (NULL);
+ }
+ if (sk_void_num(dso->meth_data) < 1) {
+ DSOerr(DSO_F_WIN32_BIND_FUNC, DSO_R_STACK_ERROR);
+ return (NULL);
+ }
+ ptr = sk_void_value(dso->meth_data, sk_void_num(dso->meth_data) - 1);
+ if (ptr == NULL) {
+ DSOerr(DSO_F_WIN32_BIND_FUNC, DSO_R_NULL_HANDLE);
+ return (NULL);
+ }
+ sym.f = GetProcAddress(*ptr, symname);
+ if (sym.p == NULL) {
+ DSOerr(DSO_F_WIN32_BIND_FUNC, DSO_R_SYM_FAILURE);
+ ERR_add_error_data(3, "symname(", symname, ")");
+ return (NULL);
+ }
+ return ((DSO_FUNC_TYPE)sym.f);
+}
+
+struct file_st {
+ const char *node;
+ int nodelen;
+ const char *device;
+ int devicelen;
+ const char *predir;
+ int predirlen;
+ const char *dir;
+ int dirlen;
+ const char *file;
+ int filelen;
+};
+
+static struct file_st *win32_splitter(DSO *dso, const char *filename,
+ int assume_last_is_dir)
+{
+ struct file_st *result = NULL;
+ enum { IN_NODE, IN_DEVICE, IN_FILE } position;
+ const char *start = filename;
+ char last;
+
+ if (!filename) {
+ DSOerr(DSO_F_WIN32_SPLITTER, DSO_R_NO_FILENAME);
+ return (NULL);
+ }
+
+ result = OPENSSL_zalloc(sizeof(*result));
+ if (result == NULL) {
+ DSOerr(DSO_F_WIN32_SPLITTER, ERR_R_MALLOC_FAILURE);
+ return (NULL);
+ }
+
+ position = IN_DEVICE;
+
+ if ((filename[0] == '\\' && filename[1] == '\\')
+ || (filename[0] == '/' && filename[1] == '/')) {
+ position = IN_NODE;
+ filename += 2;
+ start = filename;
+ result->node = start;
+ }
+
+ do {
+ last = filename[0];
+ switch (last) {
+ case ':':
+ if (position != IN_DEVICE) {
+ DSOerr(DSO_F_WIN32_SPLITTER, DSO_R_INCORRECT_FILE_SYNTAX);
+ OPENSSL_free(result);
+ return (NULL);
+ }
+ result->device = start;
+ result->devicelen = (int)(filename - start);
+ position = IN_FILE;
+ start = ++filename;
+ result->dir = start;
+ break;
+ case '\\':
+ case '/':
+ if (position == IN_NODE) {
+ result->nodelen = (int)(filename - start);
+ position = IN_FILE;
+ start = ++filename;
+ result->dir = start;
+ } else if (position == IN_DEVICE) {
+ position = IN_FILE;
+ filename++;
+ result->dir = start;
+ result->dirlen = (int)(filename - start);
+ start = filename;
+ } else {
+ filename++;
+ result->dirlen += (int)(filename - start);
+ start = filename;
+ }
+ break;
+ case '\0':
+ if (position == IN_NODE) {
+ result->nodelen = (int)(filename - start);
+ } else {
+ if (filename - start > 0) {
+ if (assume_last_is_dir) {
+ if (position == IN_DEVICE) {
+ result->dir = start;
+ result->dirlen = 0;
+ }
+ result->dirlen += (int)(filename - start);
+ } else {
+ result->file = start;
+ result->filelen = (int)(filename - start);
+ }
}
- switch(cmd)
- {
- case DSO_CTRL_GET_FLAGS:
- return dso->flags;
- case DSO_CTRL_SET_FLAGS:
- dso->flags = (int)larg;
- return(0);
- case DSO_CTRL_OR_FLAGS:
- dso->flags |= (int)larg;
- return(0);
+ }
+ break;
default:
- break;
- }
- DSOerr(DSO_F_WIN32_CTRL,DSO_R_UNKNOWN_COMMAND);
- return(-1);
+ filename++;
+ break;
+ }
+ }
+ while (last);
+
+ if (!result->nodelen)
+ result->node = NULL;
+ if (!result->devicelen)
+ result->device = NULL;
+ if (!result->dirlen)
+ result->dir = NULL;
+ if (!result->filelen)
+ result->file = NULL;
+
+ return (result);
+}
+
+static char *win32_joiner(DSO *dso, const struct file_st *file_split)
+{
+ int len = 0, offset = 0;
+ char *result = NULL;
+ const char *start;
+
+ if (!file_split) {
+ DSOerr(DSO_F_WIN32_JOINER, ERR_R_PASSED_NULL_PARAMETER);
+ return (NULL);
+ }
+ if (file_split->node) {
+ len += 2 + file_split->nodelen; /* 2 for starting \\ */
+ if (file_split->predir || file_split->dir || file_split->file)
+ len++; /* 1 for ending \ */
+ } else if (file_split->device) {
+ len += file_split->devicelen + 1; /* 1 for ending : */
+ }
+ len += file_split->predirlen;
+ if (file_split->predir && (file_split->dir || file_split->file)) {
+ len++; /* 1 for ending \ */
+ }
+ len += file_split->dirlen;
+ if (file_split->dir && file_split->file) {
+ len++; /* 1 for ending \ */
+ }
+ len += file_split->filelen;
+
+ if (!len) {
+ DSOerr(DSO_F_WIN32_JOINER, DSO_R_EMPTY_FILE_STRUCTURE);
+ return (NULL);
+ }
+
+ result = OPENSSL_malloc(len + 1);
+ if (result == NULL) {
+ DSOerr(DSO_F_WIN32_JOINER, ERR_R_MALLOC_FAILURE);
+ return (NULL);
+ }
+
+ if (file_split->node) {
+ strcpy(&result[offset], "\\\\");
+ offset += 2;
+ strncpy(&result[offset], file_split->node, file_split->nodelen);
+ offset += file_split->nodelen;
+ if (file_split->predir || file_split->dir || file_split->file) {
+ result[offset] = '\\';
+ offset++;
+ }
+ } else if (file_split->device) {
+ strncpy(&result[offset], file_split->device, file_split->devicelen);
+ offset += file_split->devicelen;
+ result[offset] = ':';
+ offset++;
+ }
+ start = file_split->predir;
+ while (file_split->predirlen > (start - file_split->predir)) {
+ const char *end = openssl_strnchr(start, '/',
+ file_split->predirlen - (start -
+ file_split->predir));
+ if (!end)
+ end = start
+ + file_split->predirlen - (start - file_split->predir);
+ strncpy(&result[offset], start, end - start);
+ offset += (int)(end - start);
+ result[offset] = '\\';
+ offset++;
+ start = end + 1;
+ }
+ start = file_split->dir;
+ while (file_split->dirlen > (start - file_split->dir)) {
+ const char *end = openssl_strnchr(start, '/',
+ file_split->dirlen - (start -
+ file_split->dir));
+ if (!end)
+ end = start + file_split->dirlen - (start - file_split->dir);
+ strncpy(&result[offset], start, end - start);
+ offset += (int)(end - start);
+ result[offset] = '\\';
+ offset++;
+ start = end + 1;
+ }
+ strncpy(&result[offset], file_split->file, file_split->filelen);
+ offset += file_split->filelen;
+ result[offset] = '\0';
+ return (result);
+}
+
+static char *win32_merger(DSO *dso, const char *filespec1,
+ const char *filespec2)
+{
+ char *merged = NULL;
+ struct file_st *filespec1_split = NULL;
+ struct file_st *filespec2_split = NULL;
+
+ if (!filespec1 && !filespec2) {
+ DSOerr(DSO_F_WIN32_MERGER, ERR_R_PASSED_NULL_PARAMETER);
+ return (NULL);
+ }
+ if (!filespec2) {
+ merged = OPENSSL_strdup(filespec1);
+ if (merged == NULL) {
+ DSOerr(DSO_F_WIN32_MERGER, ERR_R_MALLOC_FAILURE);
+ return (NULL);
+ }
+ } else if (!filespec1) {
+ merged = OPENSSL_strdup(filespec2);
+ if (merged == NULL) {
+ DSOerr(DSO_F_WIN32_MERGER, ERR_R_MALLOC_FAILURE);
+ return (NULL);
+ }
+ } else {
+ filespec1_split = win32_splitter(dso, filespec1, 0);
+ if (!filespec1_split) {
+ DSOerr(DSO_F_WIN32_MERGER, ERR_R_MALLOC_FAILURE);
+ return (NULL);
+ }
+ filespec2_split = win32_splitter(dso, filespec2, 1);
+ if (!filespec2_split) {
+ DSOerr(DSO_F_WIN32_MERGER, ERR_R_MALLOC_FAILURE);
+ OPENSSL_free(filespec1_split);
+ return (NULL);
+ }
+
+ /* Fill in into filespec1_split */
+ if (!filespec1_split->node && !filespec1_split->device) {
+ filespec1_split->node = filespec2_split->node;
+ filespec1_split->nodelen = filespec2_split->nodelen;
+ filespec1_split->device = filespec2_split->device;
+ filespec1_split->devicelen = filespec2_split->devicelen;
+ }
+ if (!filespec1_split->dir) {
+ filespec1_split->dir = filespec2_split->dir;
+ filespec1_split->dirlen = filespec2_split->dirlen;
+ } else if (filespec1_split->dir[0] != '\\'
+ && filespec1_split->dir[0] != '/') {
+ filespec1_split->predir = filespec2_split->dir;
+ filespec1_split->predirlen = filespec2_split->dirlen;
+ }
+ if (!filespec1_split->file) {
+ filespec1_split->file = filespec2_split->file;
+ filespec1_split->filelen = filespec2_split->filelen;
+ }
+
+ merged = win32_joiner(dso, filespec1_split);
+ }
+ OPENSSL_free(filespec1_split);
+ OPENSSL_free(filespec2_split);
+ return (merged);
+}
+
+static char *win32_name_converter(DSO *dso, const char *filename)
+{
+ char *translated;
+ int len, transform;
+
+ len = strlen(filename);
+ transform = ((strstr(filename, "/") == NULL) &&
+ (strstr(filename, "\\") == NULL) &&
+ (strstr(filename, ":") == NULL));
+ if (transform)
+ /* We will convert this to "%s.dll" */
+ translated = OPENSSL_malloc(len + 5);
+ else
+ /* We will simply duplicate filename */
+ translated = OPENSSL_malloc(len + 1);
+ if (translated == NULL) {
+ DSOerr(DSO_F_WIN32_NAME_CONVERTER, DSO_R_NAME_TRANSLATION_FAILED);
+ return (NULL);
+ }
+ if (transform)
+ sprintf(translated, "%s.dll", filename);
+ else
+ sprintf(translated, "%s", filename);
+ return (translated);
+}
+
+static const char *openssl_strnchr(const char *string, int c, size_t len)
+{
+ size_t i;
+ const char *p;
+ for (i = 0, p = string; i < len && *p; i++, p++) {
+ if (*p == c)
+ return p;
+ }
+ return NULL;
+}
+
+# include <tlhelp32.h>
+# ifdef _WIN32_WCE
+# define DLLNAME "TOOLHELP.DLL"
+# else
+# ifdef MODULEENTRY32
+# undef MODULEENTRY32 /* unmask the ASCII version! */
+# endif
+# define DLLNAME "KERNEL32.DLL"
+# endif
+
+typedef HANDLE(WINAPI *CREATETOOLHELP32SNAPSHOT) (DWORD, DWORD);
+typedef BOOL(WINAPI *CLOSETOOLHELP32SNAPSHOT) (HANDLE);
+typedef BOOL(WINAPI *MODULE32) (HANDLE, MODULEENTRY32 *);
+
+static void *win32_globallookup(const char *name)
+{
+ HMODULE dll;
+ HANDLE hModuleSnap = INVALID_HANDLE_VALUE;
+ MODULEENTRY32 me32;
+ CREATETOOLHELP32SNAPSHOT create_snap;
+ CLOSETOOLHELP32SNAPSHOT close_snap;
+ MODULE32 module_first, module_next;
+ union {
+ void *p;
+ FARPROC f;
+ } ret = { NULL };
+
+ dll = LoadLibrary(TEXT(DLLNAME));
+ if (dll == NULL) {
+ DSOerr(DSO_F_WIN32_GLOBALLOOKUP, DSO_R_UNSUPPORTED);
+ return NULL;
+ }
+
+ create_snap = (CREATETOOLHELP32SNAPSHOT)
+ GetProcAddress(dll, "CreateToolhelp32Snapshot");
+ if (create_snap == NULL) {
+ FreeLibrary(dll);
+ DSOerr(DSO_F_WIN32_GLOBALLOOKUP, DSO_R_UNSUPPORTED);
+ return NULL;
+ }
+ /* We take the rest for granted... */
+# ifdef _WIN32_WCE
+ close_snap = (CLOSETOOLHELP32SNAPSHOT)
+ GetProcAddress(dll, "CloseToolhelp32Snapshot");
+# else
+ close_snap = (CLOSETOOLHELP32SNAPSHOT) CloseHandle;
+# endif
+ module_first = (MODULE32) GetProcAddress(dll, "Module32First");
+ module_next = (MODULE32) GetProcAddress(dll, "Module32Next");
+
+ hModuleSnap = (*create_snap) (TH32CS_SNAPMODULE, 0);
+ if (hModuleSnap == INVALID_HANDLE_VALUE) {
+ FreeLibrary(dll);
+ DSOerr(DSO_F_WIN32_GLOBALLOOKUP, DSO_R_UNSUPPORTED);
+ return NULL;
+ }
+
+ me32.dwSize = sizeof(me32);
+
+ if (!(*module_first) (hModuleSnap, &me32)) {
+ (*close_snap) (hModuleSnap);
+ FreeLibrary(dll);
+ return NULL;
+ }
+
+ do {
+ if ((ret.f = GetProcAddress(me32.hModule, name))) {
+ (*close_snap) (hModuleSnap);
+ FreeLibrary(dll);
+ return ret.p;
}
+ } while ((*module_next) (hModuleSnap, &me32));
-#endif /* WIN32 */
+ (*close_snap) (hModuleSnap);
+ FreeLibrary(dll);
+ return NULL;
+}
+#endif /* DSO_WIN32 */
projects / openssl.git / blobdiff