From 26a029d407be480d791972afb5975cf62c9360a6 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Fri, 19 Apr 2024 02:47:55 +0200 Subject: Adding upstream version 124.0.1. Signed-off-by: Daniel Baumann --- xpcom/build/BinaryPath.h | 321 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 321 insertions(+) create mode 100644 xpcom/build/BinaryPath.h (limited to 'xpcom/build/BinaryPath.h') diff --git a/xpcom/build/BinaryPath.h b/xpcom/build/BinaryPath.h new file mode 100644 index 0000000000..47bd6940cb --- /dev/null +++ b/xpcom/build/BinaryPath.h @@ -0,0 +1,321 @@ +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* vim: set ts=8 sts=2 et sw=2 tw=80: */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#ifndef mozilla_BinaryPath_h +#define mozilla_BinaryPath_h + +#include "nsXPCOMPrivate.h" // for MAXPATHLEN +#ifdef XP_WIN +# include +#elif defined(XP_DARWIN) +# include +#elif defined(XP_UNIX) +# include +# include +# include +#endif +#if defined(__FreeBSD__) || defined(__DragonFly__) || \ + defined(__FreeBSD_kernel__) || defined(__NetBSD__) || defined(__OpenBSD__) +# include +#endif +#if defined(__OpenBSD__) +# include +#endif +#include "mozilla/UniquePtr.h" +#include "mozilla/UniquePtrExtensions.h" + +#ifdef MOZILLA_INTERNAL_API +# include "nsCOMPtr.h" +# include "nsIFile.h" +# include "nsString.h" +#endif + +namespace mozilla { + +class BinaryPath { + public: +#ifdef XP_WIN + static nsresult Get(char aResult[MAXPATHLEN]) { + wchar_t wide_path[MAXPATHLEN]; + nsresult rv = GetW(wide_path); + if (NS_FAILED(rv)) { + return rv; + } + WideCharToMultiByte(CP_UTF8, 0, wide_path, -1, aResult, MAXPATHLEN, nullptr, + nullptr); + return NS_OK; + } + + static nsresult GetLong(wchar_t aResult[MAXPATHLEN]) { + static bool cached = false; + static wchar_t exeLongPath[MAXPATHLEN] = L""; + + if (!cached) { + nsresult rv = GetW(exeLongPath); + + if (NS_FAILED(rv)) { + return rv; + } + + if (!::GetLongPathNameW(exeLongPath, exeLongPath, MAXPATHLEN)) { + return NS_ERROR_FAILURE; + } + + cached = true; + } + + if (wcscpy_s(aResult, MAXPATHLEN, exeLongPath)) { + return NS_ERROR_FAILURE; + } + + return NS_OK; + } + + private: + static nsresult GetW(wchar_t aResult[MAXPATHLEN]) { + static bool cached = false; + static wchar_t moduleFileName[MAXPATHLEN] = L""; + + if (!cached) { + if (!::GetModuleFileNameW(0, moduleFileName, MAXPATHLEN)) { + return NS_ERROR_FAILURE; + } + + cached = true; + } + + if (wcscpy_s(aResult, MAXPATHLEN, moduleFileName)) { + return NS_ERROR_FAILURE; + } + + return NS_OK; + } + +#elif defined(XP_DARWIN) + static nsresult Get(char aResult[MAXPATHLEN]) { + // Works even if we're not bundled. + CFBundleRef appBundle = CFBundleGetMainBundle(); + if (!appBundle) { + return NS_ERROR_FAILURE; + } + + CFURLRef executableURL = CFBundleCopyExecutableURL(appBundle); + if (!executableURL) { + return NS_ERROR_FAILURE; + } + + nsresult rv; + if (CFURLGetFileSystemRepresentation(executableURL, false, (UInt8*)aResult, + MAXPATHLEN)) { + // Sanitize path in case the app was launched from Terminal via + // './firefox' for example. + size_t readPos = 0; + size_t writePos = 0; + while (aResult[readPos] != '\0') { + if (aResult[readPos] == '.' && aResult[readPos + 1] == '/') { + readPos += 2; + } else { + aResult[writePos] = aResult[readPos]; + readPos++; + writePos++; + } + } + aResult[writePos] = '\0'; + rv = NS_OK; + } else { + rv = NS_ERROR_FAILURE; + } + + CFRelease(executableURL); + return rv; + } + +#elif defined(ANDROID) + static nsresult Get(char aResult[MAXPATHLEN]) { + // On Android, we use the MOZ_ANDROID_LIBDIR variable that is set by the + // Java bootstrap code. + const char* libDir = getenv("MOZ_ANDROID_LIBDIR"); + if (!libDir) { + return NS_ERROR_FAILURE; + } + + snprintf(aResult, MAXPATHLEN, "%s/%s", libDir, "dummy"); + aResult[MAXPATHLEN - 1] = '\0'; + return NS_OK; + } + +#elif defined(XP_LINUX) || defined(XP_SOLARIS) + static nsresult Get(char aResult[MAXPATHLEN]) { +# if defined(XP_SOLARIS) + const char path[] = "/proc/self/path/a.out"; +# else + const char path[] = "/proc/self/exe"; +# endif + + ssize_t len = readlink(path, aResult, MAXPATHLEN - 1); + if (len < 0) { + return NS_ERROR_FAILURE; + } + aResult[len] = '\0'; +# if defined(XP_LINUX) + // Removing suffix " (deleted)" from the binary path + const char suffix[] = " (deleted)"; + const ssize_t suffix_len = sizeof(suffix); + if (len >= suffix_len) { + char* result_end = &aResult[len - (suffix_len - 1)]; + if (memcmp(result_end, suffix, suffix_len) == 0) { + *result_end = '\0'; + } + } +# endif + return NS_OK; + } + +#elif defined(__FreeBSD__) || defined(__DragonFly__) || \ + defined(__FreeBSD_kernel__) || defined(__NetBSD__) + static nsresult Get(char aResult[MAXPATHLEN]) { + int mib[4]; + mib[0] = CTL_KERN; +# ifdef __NetBSD__ + mib[1] = KERN_PROC_ARGS; + mib[2] = -1; + mib[3] = KERN_PROC_PATHNAME; +# else + mib[1] = KERN_PROC; + mib[2] = KERN_PROC_PATHNAME; + mib[3] = -1; +# endif + + size_t len = MAXPATHLEN; + if (sysctl(mib, 4, aResult, &len, nullptr, 0) < 0) { + return NS_ERROR_FAILURE; + } + + return NS_OK; + } + +#elif defined(__OpenBSD__) + static nsresult Get(char aResult[MAXPATHLEN]) { + static bool cached = false; + static char cachedPath[MAXPATHLEN]; + nsresult r; + int mib[4]; + if (cached) { + if (strlcpy(aResult, cachedPath, MAXPATHLEN) >= MAXPATHLEN) { + return NS_ERROR_FAILURE; + } + return NS_OK; + } + mib[0] = CTL_KERN; + mib[1] = KERN_PROC_ARGS; + mib[2] = getpid(); + mib[3] = KERN_PROC_ARGV; + + size_t len = 0; + if (sysctl(mib, 4, nullptr, &len, nullptr, 0) < 0) { + return NS_ERROR_FAILURE; + } + + auto argv = MakeUnique(len / sizeof(const char*)); + if (sysctl(mib, 4, argv.get(), &len, nullptr, 0) < 0) { + return NS_ERROR_FAILURE; + } + + r = GetFromArgv0(argv[0], aResult); + if (NS_SUCCEEDED(r)) { + if (strlcpy(cachedPath, aResult, MAXPATHLEN) >= MAXPATHLEN) { + return NS_ERROR_FAILURE; + } + cached = true; + } + return r; + } + + static nsresult GetFromArgv0(const char* aArgv0, char aResult[MAXPATHLEN]) { + struct stat fileStat; + // 1) use realpath() on argv[0], which works unless we're loaded from the + // PATH. Only do so if argv[0] looks like a path (contains a /). + // 2) manually walk through the PATH and look for ourself + // 3) give up + if (strchr(aArgv0, '/') && realpath(aArgv0, aResult) && + stat(aResult, &fileStat) == 0) { + return NS_OK; + } + + const char* path = getenv("PATH"); + if (!path) { + return NS_ERROR_FAILURE; + } + + char* pathdup = strdup(path); + if (!pathdup) { + return NS_ERROR_OUT_OF_MEMORY; + } + + bool found = false; + char* token = strtok(pathdup, ":"); + while (token) { + char tmpPath[MAXPATHLEN]; + sprintf(tmpPath, "%s/%s", token, aArgv0); + if (realpath(tmpPath, aResult) && stat(aResult, &fileStat) == 0) { + found = true; + break; + } + token = strtok(nullptr, ":"); + } + free(pathdup); + if (found) { + return NS_OK; + } + return NS_ERROR_FAILURE; + } + +#else +# error Oops, you need platform-specific code here +#endif + + public: + static UniqueFreePtr Get() { + char path[MAXPATHLEN]; + if (NS_FAILED(Get(path))) { + return nullptr; + } + UniqueFreePtr result; + result.reset(strdup(path)); + return result; + } + +#ifdef MOZILLA_INTERNAL_API + static nsresult GetFile(nsIFile** aResult) { + nsCOMPtr lf; +# ifdef XP_WIN + wchar_t exePath[MAXPATHLEN]; + nsresult rv = GetW(exePath); +# else + char exePath[MAXPATHLEN]; + nsresult rv = Get(exePath); +# endif + if (NS_FAILED(rv)) { + return rv; + } +# ifdef XP_WIN + rv = NS_NewLocalFile(nsDependentString(exePath), true, getter_AddRefs(lf)); +# else + rv = NS_NewNativeLocalFile(nsDependentCString(exePath), true, + getter_AddRefs(lf)); +# endif + if (NS_FAILED(rv)) { + return rv; + } + NS_ADDREF(*aResult = lf); + return NS_OK; + } +#endif +}; + +} // namespace mozilla + +#endif /* mozilla_BinaryPath_h */ -- cgit v1.2.3