janwas
a859562ea7
- properly differentiate between buffer/offset alignment and length alignment (relevant since block size has been increased to 256k) - use VfsPath for most game paths instead of CStr - clean up timer interface and implementation - self-tests no longer crash - file_cache.cpp: fix for the case where allocation fails (prevent deleter from seeing a null pointer) - allocators: move all shared_ptr-related stuff to its own component; add DummySharedPtr - codec: disable checksums (important for performance at work) - File: made into an interface class to avoid export problems. not entirely sure about this.. - vfs_path.h, path.h, os_path.h: proper fix for using fs::change_extension and similar utility functions with derivatives of basic_path - lib_api: automatically link against import lib if building lib/ as a DLL - path_util: remove unused functions (this component is deprecated) - compiler.h: add INLINE - Xeromyces.cpp: pass PIVFS so that GetXMBPath works in self-test (should do this mostly everywhere rather than have one singleton g_VFS) This was SVN commit r5537.
133 lines
4.1 KiB
C++
133 lines
4.1 KiB
C++
/**
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* =========================================================================
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* File : wdll_ver.cpp
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* Project : 0 A.D.
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* Description : return DLL version information.
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* =========================================================================
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*/
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// license: GPL; see lib/license.txt
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#include "precompiled.h"
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#include "wdll_ver.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include "win.h"
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#include "wutil.h"
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#include "lib/allocators/shared_ptr.h"
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#if MSC_VERSION
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#pragma comment(lib, "version.lib") // DLL version
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#endif
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//-----------------------------------------------------------------------------
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static LibError ReadVersionString(const OsPath& modulePathname_, char* out_ver, size_t out_ver_len)
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{
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WinScopedPreserveLastError s; // GetFileVersion*, Ver*
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WinScopedDisableWow64Redirection noRedirect;
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const std::string modulePathname = modulePathname_.external_file_string();
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#ifndef NDEBUG
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// make sure the file exists (rules out that problem as a cause of
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// GetFileVersionInfoSize failing, since it doesn't SetLastError)
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HMODULE hModule = LoadLibraryEx(modulePathname.c_str(), 0, LOAD_LIBRARY_AS_DATAFILE);
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debug_assert(hModule != 0);
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FreeLibrary(hModule);
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#endif
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// determine size of and allocate memory for version information.
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DWORD unused;
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const DWORD ver_size = GetFileVersionInfoSize(modulePathname.c_str(), &unused);
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if(!ver_size)
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WARN_RETURN(ERR::FAIL);
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shared_ptr<u8> mem = Allocate(ver_size);
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if(!GetFileVersionInfo(modulePathname.c_str(), 0, ver_size, mem.get()))
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WARN_RETURN(ERR::FAIL);
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u16* lang; // -> 16 bit language ID, 16 bit codepage
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uint lang_len;
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const BOOL ok = VerQueryValue(mem.get(), "\\VarFileInfo\\Translation", (void**)&lang, &lang_len);
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if(!ok || !lang || lang_len != 4)
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WARN_RETURN(ERR::FAIL);
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char subblock[64];
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sprintf(subblock, "\\StringFileInfo\\%04X%04X\\FileVersion", lang[0], lang[1]);
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const char* in_ver;
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uint in_ver_len;
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if(!VerQueryValue(mem.get(), subblock, (void**)&in_ver, &in_ver_len))
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WARN_RETURN(ERR::FAIL);
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strcpy_s(out_ver, out_ver_len, in_ver);
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return INFO::OK;
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}
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//
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// build a string containing DLL filename(s) and their version info.
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//
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static char* ver_list_buf;
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static size_t ver_list_chars;
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static char* ver_list_pos;
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// set output buffer into which DLL names and their versions will be written.
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void wdll_ver_list_init(char* buf, size_t chars)
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{
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ver_list_pos = ver_list_buf = buf;
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ver_list_chars = chars;
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}
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// read DLL file version and append that and its name to the list.
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//
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// name should preferably be the complete path to DLL, to make sure
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// we don't inadvertently load another one on the library search path.
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// we add the .dll extension if necessary.
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LibError wdll_ver_list_add(const OsPath& pathname)
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{
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// not be called before wdll_ver_list_init or after failure
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if(!ver_list_pos)
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WARN_RETURN(ERR::LOGIC);
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// pathname may not have an extension (e.g. driver names from the
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// registry). note that always appending ".dll" would be incorrect
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// since some have ".sys" extension.
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OsPath modulePathname(pathname);
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if(fs::extension(modulePathname).empty())
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modulePathname = fs::change_extension(modulePathname, ".dll");
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// read file version.
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// (note: we can ignore the return value since the default
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// text has already been set)
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char versionString[500] = "unknown"; // enclosed in () below
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(void)ReadVersionString(modulePathname, versionString, ARRAY_SIZE(versionString));
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// reserve enough room for subsequent comma and "..." strings.
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const ssize_t max_chars_to_write = (ssize_t)ver_list_chars - (ver_list_pos-ver_list_buf) - 10;
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// not first time: prepend comma to string (room was reserved above).
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if(ver_list_pos != ver_list_buf)
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ver_list_pos += sprintf(ver_list_pos, ", ");
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// extract filename.
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const std::string moduleName(modulePathname.leaf());
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int len = snprintf(ver_list_pos, max_chars_to_write, "%s (%s)", moduleName.c_str(), versionString);
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// success
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if(len > 0)
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{
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ver_list_pos += len;
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return INFO::OK;
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}
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// didn't fit; complain
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sprintf(ver_list_pos, "..."); // (room was reserved above)
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ver_list_pos = 0; // poison pill, prevent further calls
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WARN_RETURN(ERR::BUF_SIZE);
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}
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