diff options
Diffstat (limited to 'thirdparty/openssl/crypto/dso/dso_win32.c')
| -rw-r--r-- | thirdparty/openssl/crypto/dso/dso_win32.c | 788 |
1 files changed, 0 insertions, 788 deletions
diff --git a/thirdparty/openssl/crypto/dso/dso_win32.c b/thirdparty/openssl/crypto/dso/dso_win32.c deleted file mode 100644 index 706e754a3f..0000000000 --- a/thirdparty/openssl/crypto/dso/dso_win32.c +++ /dev/null @@ -1,788 +0,0 @@ -/* 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). - * - */ - -#include <stdio.h> -#include <string.h> -#include "cryptlib.h" -#include <openssl/dso.h> - -#if !defined(DSO_WIN32) -DSO_METHOD *DSO_METHOD_win32(void) -{ - return NULL; -} -#else - -# 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]; - - return LoadLibraryW(fnamw); -} -# endif - -/* Part of the hack in "win32_load" ... */ -# define DSO_MAX_TRANSLATED_SIZE 256 - -static int win32_load(DSO *dso); -static int win32_unload(DSO *dso); -static void *win32_bind_var(DSO *dso, const char *symname); -static DSO_FUNC_TYPE win32_bind_func(DSO *dso, const char *symname); -# if 0 -static int win32_unbind_var(DSO *dso, char *symname, void *symptr); -static int win32_unbind_func(DSO *dso, char *symname, DSO_FUNC_TYPE symptr); -static int win32_init(DSO *dso); -static int win32_finish(DSO *dso); -static long win32_ctrl(DSO *dso, int cmd, long larg, void *parg); -# endif -static char *win32_name_converter(DSO *dso, const char *filename); -static char *win32_merger(DSO *dso, const char *filespec1, - const char *filespec2); -static int win32_pathbyaddr(void *addr, char *path, int sz); -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_var, - win32_bind_func, -/* For now, "unbind" doesn't exist */ -# if 0 - NULL, /* unbind_var */ - NULL, /* unbind_func */ -# endif - NULL, /* ctrl */ - win32_name_converter, - win32_merger, - NULL, /* init */ - NULL, /* finish */ - win32_pathbyaddr, - win32_globallookup -}; - -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. - */ - -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 = (HINSTANCE *) OPENSSL_malloc(sizeof(HINSTANCE)); - 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 ! */ - if (filename != NULL) - OPENSSL_free(filename); - if (p != NULL) - 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_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); -} - -/* - * Using GetProcAddress for variables? TODO: Check this out in the Win32 API - * docs, there's probably a variant for variables. - */ -static void *win32_bind_var(DSO *dso, const char *symname) -{ - HINSTANCE *ptr; - void *sym; - - if ((dso == NULL) || (symname == NULL)) { - DSOerr(DSO_F_WIN32_BIND_VAR, ERR_R_PASSED_NULL_PARAMETER); - return (NULL); - } - if (sk_void_num(dso->meth_data) < 1) { - DSOerr(DSO_F_WIN32_BIND_VAR, 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_VAR, DSO_R_NULL_HANDLE); - return (NULL); - } - sym = GetProcAddress(*ptr, symname); - if (sym == NULL) { - DSOerr(DSO_F_WIN32_BIND_VAR, DSO_R_SYM_FAILURE); - ERR_add_error_data(3, "symname(", symname, ")"); - return (NULL); - } - return (sym); -} - -static DSO_FUNC_TYPE win32_bind_func(DSO *dso, const char *symname) -{ - HINSTANCE *ptr; - void *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 = GetProcAddress(*ptr, symname); - if (sym == 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); -} - -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); - /* - * goto err; - */ - return (NULL); - } - - result = OPENSSL_malloc(sizeof(struct file_st)); - if (result == NULL) { - DSOerr(DSO_F_WIN32_SPLITTER, ERR_R_MALLOC_FAILURE); - return (NULL); - } - - memset(result, 0, sizeof(struct file_st)); - 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); - /* - * goto err; - */ - 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); - } - } - } - break; - default: - 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) { - 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; - } -# if 0 /* Not needed, since the directory converter - * above already appeneded a backslash */ - if (file_split->predir && (file_split->dir || file_split->file)) { - result[offset] = '\\'; - offset++; - } -# endif - 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; - } -# if 0 /* Not needed, since the directory converter - * above already appeneded a backslash */ - if (file_split->dir && file_split->file) { - result[offset] = '\\'; - offset++; - } -# endif - 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_malloc(strlen(filespec1) + 1); - if (!merged) { - DSOerr(DSO_F_WIN32_MERGER, ERR_R_MALLOC_FAILURE); - return (NULL); - } - strcpy(merged, filespec1); - } else if (!filespec1) { - merged = OPENSSL_malloc(strlen(filespec2) + 1); - if (!merged) { - DSOerr(DSO_F_WIN32_MERGER, ERR_R_MALLOC_FAILURE); - return (NULL); - } - strcpy(merged, filespec2); - } 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 int win32_pathbyaddr(void *addr, char *path, int sz) -{ - HMODULE dll; - HANDLE hModuleSnap = INVALID_HANDLE_VALUE; - MODULEENTRY32 me32; - CREATETOOLHELP32SNAPSHOT create_snap; - CLOSETOOLHELP32SNAPSHOT close_snap; - MODULE32 module_first, module_next; - - if (addr == NULL) { - union { - int (*f) (void *, char *, int); - void *p; - } t = { - win32_pathbyaddr - }; - addr = t.p; - } - - dll = LoadLibrary(TEXT(DLLNAME)); - if (dll == NULL) { - DSOerr(DSO_F_WIN32_PATHBYADDR, DSO_R_UNSUPPORTED); - return -1; - } - - create_snap = (CREATETOOLHELP32SNAPSHOT) - GetProcAddress(dll, "CreateToolhelp32Snapshot"); - if (create_snap == NULL) { - FreeLibrary(dll); - DSOerr(DSO_F_WIN32_PATHBYADDR, DSO_R_UNSUPPORTED); - return -1; - } - /* 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_PATHBYADDR, DSO_R_UNSUPPORTED); - return -1; - } - - me32.dwSize = sizeof(me32); - - if (!(*module_first) (hModuleSnap, &me32)) { - (*close_snap) (hModuleSnap); - FreeLibrary(dll); - DSOerr(DSO_F_WIN32_PATHBYADDR, DSO_R_FAILURE); - return -1; - } - - do { - if ((BYTE *) addr >= me32.modBaseAddr && - (BYTE *) addr < me32.modBaseAddr + me32.modBaseSize) { - (*close_snap) (hModuleSnap); - FreeLibrary(dll); -# ifdef _WIN32_WCE -# if _WIN32_WCE >= 101 - return WideCharToMultiByte(CP_ACP, 0, me32.szExePath, -1, - path, sz, NULL, NULL); -# else - { - int i, len = (int)wcslen(me32.szExePath); - if (sz <= 0) - return len + 1; - if (len >= sz) - len = sz - 1; - for (i = 0; i < len; i++) - path[i] = (char)me32.szExePath[i]; - path[len++] = 0; - return len; - } -# endif -# else - { - int len = (int)strlen(me32.szExePath); - if (sz <= 0) - return len + 1; - if (len >= sz) - len = sz - 1; - memcpy(path, me32.szExePath, len); - path[len++] = 0; - return len; - } -# endif - } - } while ((*module_next) (hModuleSnap, &me32)); - - (*close_snap) (hModuleSnap); - FreeLibrary(dll); - return 0; -} - -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; - FARPROC 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 = GetProcAddress(me32.hModule, name))) { - (*close_snap) (hModuleSnap); - FreeLibrary(dll); - return ret; - } - } while ((*module_next) (hModuleSnap, &me32)); - - (*close_snap) (hModuleSnap); - FreeLibrary(dll); - return NULL; -} -#endif /* DSO_WIN32 */ |