-/* dso_win32.c */
-/* Written by Geoff Thorpe (geoff@geoffthorpe.net) for the OpenSSL
- * project 2000.
+/* 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.
* are met:
*
* 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
+ * 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
#include "cryptlib.h"
#include <openssl/dso.h>
-#ifndef WIN32
+#if !defined(DSO_WIN32)
DSO_METHOD *DSO_METHOD_win32(void)
- {
- return NULL;
- }
+{
+ 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
+# 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 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);
-#endif
-static long win32_ctrl(DSO *dso, int cmd, long larg, void *parg);
+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
- win32_ctrl,
- NULL, /* init */
- NULL /* finish */
- };
+ "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)
- {
- return(&dso_meth_win32);
- }
+{
+ 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.
+/*
+ * 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 *)OPENSSL_malloc(sizeof(HINSTANCE));
- if(p == NULL)
- {
- DSOerr(DSO_F_WIN32_LOAD,ERR_R_MALLOC_FAILURE);
- OPENSSL_freeLibrary(h);
- return(0);
- }
- *p = h;
- if(!sk_push(dso->meth_data, (char *)p))
- {
- DSOerr(DSO_F_WIN32_LOAD,DSO_R_STACK_ERROR);
- OPENSSL_freeLibrary(h);
- OPENSSL_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 = (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_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(!OPENSSL_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. */
+{
+ 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_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);
- return(NULL);
- }
- return(sym);
- }
+{
+ 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_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);
- return(NULL);
- }
- return((DSO_FUNC_TYPE)sym);
- }
-
-static long 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 *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);
+ }
}
- 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) {
+ 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_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));
-#endif /* WIN32 */
+ (*close_snap) (hModuleSnap);
+ FreeLibrary(dll);
+ return NULL;
+}
+#endif /* DSO_WIN32 */
projects / openssl.git / blobdiff