diff options
Diffstat (limited to 'openssl/crypto/dso/dso_win32.c')
| -rw-r--r-- | openssl/crypto/dso/dso_win32.c | 660 |
1 files changed, 660 insertions, 0 deletions
diff --git a/openssl/crypto/dso/dso_win32.c b/openssl/crypto/dso/dso_win32.c new file mode 100644 index 000000000..fd3dd6a7f --- /dev/null +++ b/openssl/crypto/dso/dso_win32.c @@ -0,0 +1,660 @@ +/* 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). + * + */ + +#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) 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 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 */ + }; + +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_push(dso->meth_data, (char *)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_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 */ + 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_num(dso->meth_data) < 1) + { + DSOerr(DSO_F_WIN32_BIND_VAR,DSO_R_STACK_ERROR); + return(NULL); + } + ptr = (HINSTANCE *)sk_value(dso->meth_data, sk_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_num(dso->meth_data) < 1) + { + DSOerr(DSO_F_WIN32_BIND_FUNC,DSO_R_STACK_ERROR); + return(NULL); + } + ptr = (HINSTANCE *)sk_value(dso->meth_data, sk_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;*/ + return(NULL); + } + result->device = start; + result->devicelen = filename - start; + position = IN_FILE; + start = ++filename; + result->dir = start; + break; + case '\\': + case '/': + if(position == IN_NODE) + { + result->nodelen = filename - start; + position = IN_FILE; + start = ++filename; + result->dir = start; + } + else if(position == IN_DEVICE) + { + position = IN_FILE; + filename++; + result->dir = start; + result->dirlen = filename - start; + start = filename; + } + else + { + filename++; + result->dirlen += filename - start; + start = filename; + } + break; + case '\0': + if(position == IN_NODE) + { + result->nodelen = filename - start; + } + else + { + if(filename - start > 0) + { + if (assume_last_is_dir) + { + if (position == IN_DEVICE) + { + result->dir = start; + result->dirlen = 0; + } + result->dirlen += + filename - start; + } + else + { + result->file = start; + result->filelen = + 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 += 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 += 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); + } + 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; + } + + +#endif /* OPENSSL_SYS_WIN32 */ |