X-Git-Url: https://git.openssl.org/gitweb/?p=openssl.git;a=blobdiff_plain;f=crypto%2Fdso%2Fdso_win32.c;h=4ac6e7176d726952079e54f5d7db30ce52167f3a;hp=2499fc152b2a51e757694dcf3294f39841b5512e;hb=63916e9a234c1e6bbf82cc21b7d2e39cdecb30d0;hpb=b196e7d936fb377d9c5b305748ac25ff0e53ef6d diff --git a/crypto/dso/dso_win32.c b/crypto/dso/dso_win32.c index 2499fc152b..4ac6e7176d 100644 --- a/crypto/dso/dso_win32.c +++ b/crypto/dso/dso_win32.c @@ -1,73 +1,15 @@ -/* dso_win32.c -*- mode:C; c-file-style: "eay" -*- */ /* - * 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 2000-2016 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 -#include -#include "cryptlib.h" -#include +#include "dso_locl.h" -#if !defined(DSO_WIN32) -DSO_METHOD *DSO_METHOD_win32(void) -{ - return NULL; -} -#else +#if defined(DSO_WIN32) # ifdef _WIN32_WCE # if _WIN32_WCE < 300 @@ -117,12 +59,10 @@ static HINSTANCE LoadLibraryA(LPCSTR lpLibFileName) 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); 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); @@ -131,20 +71,18 @@ static DSO_METHOD dso_meth_win32 = { "OpenSSL 'win32' shared library method", win32_load, win32_unload, - win32_bind_var, win32_bind_func, NULL, /* ctrl */ win32_name_converter, win32_merger, NULL, /* init */ NULL, /* finish */ - win32_pathbyaddr, win32_globallookup }; -DSO_METHOD *DSO_METHOD_win32(void) +DSO_METHOD *DSO_METHOD_openssl(void) { - return (&dso_meth_win32); + return &dso_meth_win32; } /* @@ -168,7 +106,7 @@ static int win32_load(DSO *dso) ERR_add_error_data(3, "filename(", filename, ")"); goto err; } - p = OPENSSL_malloc(sizeof(HINSTANCE)); + p = OPENSSL_malloc(sizeof(*p)); if (p == NULL) { DSOerr(DSO_F_WIN32_LOAD, ERR_R_MALLOC_FAILURE); goto err; @@ -183,10 +121,8 @@ static int win32_load(DSO *dso) return (1); err: /* Cleanup ! */ - if (filename != NULL) - OPENSSL_free(filename); - if (p != NULL) - OPENSSL_free(p); + OPENSSL_free(filename); + OPENSSL_free(p); if (h != NULL) FreeLibrary(h); return (0); @@ -219,41 +155,13 @@ static int win32_unload(DSO *dso) 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; + union { + void *p; + FARPROC f; + } sym; if ((dso == NULL) || (symname == NULL)) { DSOerr(DSO_F_WIN32_BIND_FUNC, ERR_R_PASSED_NULL_PARAMETER); @@ -268,13 +176,13 @@ static DSO_FUNC_TYPE win32_bind_func(DSO *dso, const char *symname) DSOerr(DSO_F_WIN32_BIND_FUNC, DSO_R_NULL_HANDLE); return (NULL); } - sym = GetProcAddress(*ptr, symname); - if (sym == 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); + return ((DSO_FUNC_TYPE)sym.f); } struct file_st { @@ -306,13 +214,12 @@ static struct file_st *win32_splitter(DSO *dso, const char *filename, return (NULL); } - result = OPENSSL_malloc(sizeof(struct file_st)); + result = OPENSSL_zalloc(sizeof(*result)); 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] == '\\') @@ -430,7 +337,7 @@ static char *win32_joiner(DSO *dso, const struct file_st *file_split) } result = OPENSSL_malloc(len + 1); - if (!result) { + if (result == NULL) { DSOerr(DSO_F_WIN32_JOINER, ERR_R_MALLOC_FAILURE); return (NULL); } @@ -496,14 +403,14 @@ static char *win32_merger(DSO *dso, const char *filespec1, } if (!filespec2) { merged = OPENSSL_malloc(strlen(filespec1) + 1); - if (!merged) { + if (merged == NULL) { 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) { + if (merged == NULL) { DSOerr(DSO_F_WIN32_MERGER, ERR_R_MALLOC_FAILURE); return (NULL); } @@ -599,106 +506,6 @@ 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; @@ -707,7 +514,10 @@ static void *win32_globallookup(const char *name) CREATETOOLHELP32SNAPSHOT create_snap; CLOSETOOLHELP32SNAPSHOT close_snap; MODULE32 module_first, module_next; - FARPROC ret = NULL; + union { + void *p; + FARPROC f; + } ret = { NULL }; dll = LoadLibrary(TEXT(DLLNAME)); if (dll == NULL) { @@ -748,10 +558,10 @@ static void *win32_globallookup(const char *name) } do { - if ((ret = GetProcAddress(me32.hModule, name))) { + if ((ret.f = GetProcAddress(me32.hModule, name))) { (*close_snap) (hModuleSnap); FreeLibrary(dll); - return ret; + return ret.p; } } while ((*module_next) (hModuleSnap, &me32));