/*
* Copyright 2000-2017 The OpenSSL Project Authors. All Rights Reserved.
*
- * Licensed under the OpenSSL license (the "License"). You may not use
+ * Licensed under the Apache License 2.0 (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 "e_os.h"
-#include "dso_locl.h"
+#include "dso_local.h"
#if defined(DSO_WIN32)
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);
win32_merger,
NULL, /* init */
NULL, /* finish */
- NULL, /* pathbyaddr */
+ win32_pathbyaddr, /* pathbyaddr */
win32_globallookup
};
}
/* Success */
dso->loaded_filename = filename;
- return (1);
+ return 1;
err:
/* Cleanup ! */
OPENSSL_free(filename);
OPENSSL_free(p);
if (h != NULL)
FreeLibrary(h);
- return (0);
+ 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);
+ return 0;
}
if (sk_void_num(dso->meth_data) < 1)
- return (1);
+ return 1;
p = sk_void_pop(dso->meth_data);
if (p == NULL) {
DSOerr(DSO_F_WIN32_UNLOAD, DSO_R_NULL_HANDLE);
- return (0);
+ 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);
+ return 0;
}
/* Cleanup */
OPENSSL_free(p);
- return (1);
+ return 1;
}
static DSO_FUNC_TYPE win32_bind_func(DSO *dso, const char *symname)
if ((dso == NULL) || (symname == NULL)) {
DSOerr(DSO_F_WIN32_BIND_FUNC, ERR_R_PASSED_NULL_PARAMETER);
- return (NULL);
+ return NULL;
}
if (sk_void_num(dso->meth_data) < 1) {
DSOerr(DSO_F_WIN32_BIND_FUNC, DSO_R_STACK_ERROR);
- return (NULL);
+ 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);
+ 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 NULL;
}
- return ((DSO_FUNC_TYPE)sym.f);
+ return (DSO_FUNC_TYPE)sym.f;
}
struct file_st {
if (!filename) {
DSOerr(DSO_F_WIN32_SPLITTER, DSO_R_NO_FILENAME);
- return (NULL);
+ return NULL;
}
result = OPENSSL_zalloc(sizeof(*result));
if (result == NULL) {
DSOerr(DSO_F_WIN32_SPLITTER, ERR_R_MALLOC_FAILURE);
- return (NULL);
+ return NULL;
}
position = IN_DEVICE;
if (position != IN_DEVICE) {
DSOerr(DSO_F_WIN32_SPLITTER, DSO_R_INCORRECT_FILE_SYNTAX);
OPENSSL_free(result);
- return (NULL);
+ return NULL;
}
result->device = start;
result->devicelen = (int)(filename - start);
if (!result->filelen)
result->file = NULL;
- return (result);
+ return result;
}
static char *win32_joiner(DSO *dso, const struct file_st *file_split)
if (!file_split) {
DSOerr(DSO_F_WIN32_JOINER, ERR_R_PASSED_NULL_PARAMETER);
- return (NULL);
+ return NULL;
}
if (file_split->node) {
len += 2 + file_split->nodelen; /* 2 for starting \\ */
if (!len) {
DSOerr(DSO_F_WIN32_JOINER, DSO_R_EMPTY_FILE_STRUCTURE);
- return (NULL);
+ return NULL;
}
result = OPENSSL_malloc(len + 1);
if (result == NULL) {
DSOerr(DSO_F_WIN32_JOINER, ERR_R_MALLOC_FAILURE);
- return (NULL);
+ return NULL;
}
if (file_split->node) {
strncpy(&result[offset], file_split->file, file_split->filelen);
offset += file_split->filelen;
result[offset] = '\0';
- return (result);
+ return result;
}
static char *win32_merger(DSO *dso, const char *filespec1,
if (!filespec1 && !filespec2) {
DSOerr(DSO_F_WIN32_MERGER, ERR_R_PASSED_NULL_PARAMETER);
- return (NULL);
+ return NULL;
}
if (!filespec2) {
merged = OPENSSL_strdup(filespec1);
if (merged == NULL) {
DSOerr(DSO_F_WIN32_MERGER, ERR_R_MALLOC_FAILURE);
- return (NULL);
+ return NULL;
}
} else if (!filespec1) {
merged = OPENSSL_strdup(filespec2);
if (merged == NULL) {
DSOerr(DSO_F_WIN32_MERGER, ERR_R_MALLOC_FAILURE);
- return (NULL);
+ return NULL;
}
} else {
filespec1_split = win32_splitter(dso, filespec1, 0);
if (!filespec1_split) {
DSOerr(DSO_F_WIN32_MERGER, ERR_R_MALLOC_FAILURE);
- return (NULL);
+ 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);
+ return NULL;
}
/* Fill in into filespec1_split */
}
OPENSSL_free(filespec1_split);
OPENSSL_free(filespec2_split);
- return (merged);
+ return merged;
}
static char *win32_name_converter(DSO *dso, const char *filename)
translated = OPENSSL_malloc(len + 1);
if (translated == NULL) {
DSOerr(DSO_F_WIN32_NAME_CONVERTER, DSO_R_NAME_TRANSLATION_FAILED);
- return (NULL);
+ return NULL;
}
if (transform)
sprintf(translated, "%s.dll", filename);
else
sprintf(translated, "%s", filename);
- return (translated);
+ return translated;
}
static const char *openssl_strnchr(const char *string, int c, size_t len)
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");
+
+ /*
+ * Take a snapshot of current process which includes
+ * list of all involved modules.
+ */
+ 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;
+ }
+
+ /* Enumerate the modules to find one which includes me. */
+ do {
+ if ((uintptr_t) addr >= (uintptr_t) me32.modBaseAddr &&
+ (uintptr_t) addr < (uintptr_t) (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;
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