diff options
Diffstat (limited to 'sal/osl/unx/uunxapi.cxx')
| -rw-r--r-- | sal/osl/unx/uunxapi.cxx | 896 |
1 files changed, 896 insertions, 0 deletions
diff --git a/sal/osl/unx/uunxapi.cxx b/sal/osl/unx/uunxapi.cxx new file mode 100644 index 000000000..e8901784c --- /dev/null +++ b/sal/osl/unx/uunxapi.cxx @@ -0,0 +1,896 @@ +/* -*- Mode: ObjC; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/* + * This file is part of the LibreOffice project. + * + * 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/. + * + * This file incorporates work covered by the following license notice: + * + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed + * with this work for additional information regarding copyright + * ownership. The ASF licenses this file to you under the Apache + * License, Version 2.0 (the "License"); you may not use this file + * except in compliance with the License. You may obtain a copy of + * the License at http://www.apache.org/licenses/LICENSE-2.0 . + */ + +#include <config_features.h> + +#include "uunxapi.hxx" +#include "system.hxx" +#include "unixerrnostring.hxx" +#include <limits.h> +#include <rtl/ustring.hxx> +#include <osl/thread.h> +#include <sal/log.hxx> + +#ifdef ANDROID +#include <osl/detail/android-bootstrap.h> +#endif + +OString osl::OUStringToOString(const OUString& s) +{ + return OUStringToOString(s, osl_getThreadTextEncoding()); +} + +#if HAVE_FEATURE_MACOSX_SANDBOX + +#include <Foundation/Foundation.h> +#include <Security/Security.h> +#include <mach-o/dyld.h> + +static NSUserDefaults *userDefaults = NULL; +static bool isSandboxed = false; + +static void do_once() +{ + SecCodeRef code; + OSStatus rc = SecCodeCopySelf(kSecCSDefaultFlags, &code); + + SecStaticCodeRef staticCode; + if (rc == errSecSuccess) + rc = SecCodeCopyStaticCode(code, kSecCSDefaultFlags, &staticCode); + + CFDictionaryRef signingInformation; + if (rc == errSecSuccess) + rc = SecCodeCopySigningInformation(staticCode, kSecCSRequirementInformation, &signingInformation); + + CFDictionaryRef entitlements = NULL; + if (rc == errSecSuccess) + entitlements = (CFDictionaryRef) CFDictionaryGetValue(signingInformation, kSecCodeInfoEntitlementsDict); + + if (entitlements != NULL) + if (CFDictionaryGetValue(entitlements, CFSTR("com.apple.security.app-sandbox")) != NULL) + isSandboxed = true; + + if (isSandboxed) + userDefaults = [NSUserDefaults standardUserDefaults]; +} + +typedef struct { + NSURL *scopeURL; + NSAutoreleasePool *pool; +} accessFilePathState; + +static accessFilePathState * +prepare_to_access_file_path( const char *cpFilePath ) +{ + static pthread_once_t once = PTHREAD_ONCE_INIT; + pthread_once(&once, &do_once); + NSURL *fileURL = nil; + NSData *data = nil; + BOOL stale; + accessFilePathState *state; + + if (!isSandboxed) + return NULL; + + // If malloc() fails we are screwed anyway + state = (accessFilePathState*) malloc(sizeof(accessFilePathState)); + + state->pool = [[NSAutoreleasePool alloc] init]; + state->scopeURL = nil; + + if (userDefaults != nil) + fileURL = [NSURL fileURLWithPath:[NSString stringWithUTF8String:cpFilePath]]; + + if (fileURL != nil) + data = [userDefaults dataForKey:[@"bookmarkFor:" stringByAppendingString:[fileURL absoluteString]]]; + + if (data != nil) + state->scopeURL = [NSURL URLByResolvingBookmarkData:data + options:NSURLBookmarkResolutionWithSecurityScope + relativeToURL:nil + bookmarkDataIsStale:&stale + error:nil]; + if (state->scopeURL != nil) + [state->scopeURL startAccessingSecurityScopedResource]; + + return state; +} + +static void +done_accessing_file_path( const char * /*cpFilePath*/, accessFilePathState *state ) +{ + if (!isSandboxed) + return; + + int saved_errno = errno; + + if (state->scopeURL != nil) + [state->scopeURL stopAccessingSecurityScopedResource]; + [state->pool release]; + free(state); + + errno = saved_errno; +} + +#else + +typedef void accessFilePathState; + +#define prepare_to_access_file_path( cpFilePath ) nullptr + +#define done_accessing_file_path( cpFilePath, state ) ((void) cpFilePath, (void) state) + +#endif + +#ifdef MACOSX +/* + * Helper function for resolving Mac native alias files (not the same as unix alias files) + * and to return the resolved alias as OString + */ +static OString macxp_resolveAliasAndConvert(OString const & p) +{ + char path[PATH_MAX]; + if (p.getLength() < PATH_MAX) + { + strcpy(path, p.getStr()); + macxp_resolveAlias(path, PATH_MAX); + return path; + } + return p; +} +#endif /* MACOSX */ + +int osl::access(const OString& pstrPath, int mode) +{ + OString fn = pstrPath; +#ifdef ANDROID + if (fn == "/assets" || fn.startsWith("/assets/")) + { + struct stat stat; + if (lo_apk_lstat(fn.getStr(), &stat) == -1) + return -1; + if (mode & W_OK) + { + errno = EACCES; + return -1; + } + return 0; + } +#endif + +#ifdef MACOSX + fn = macxp_resolveAliasAndConvert(fn); +#endif + + accessFilePathState *state = prepare_to_access_file_path(fn.getStr()); + + int result = ::access(fn.getStr(), mode); + int saved_errno = errno; + if (result == -1) + SAL_INFO("sal.file", "access(" << fn << ",0" << std::oct << mode << std::dec << "): " << UnixErrnoString(saved_errno)); + else + SAL_INFO("sal.file", "access(" << fn << ",0" << std::oct << mode << std::dec << "): OK"); + + done_accessing_file_path(fn.getStr(), state); + + errno = saved_errno; + + return result; +} + +namespace { + +OString toOString(OString const & s) { return s; } + +OString toOString(OUString const & s) { return osl::OUStringToOString(s); } + +template<typename T> T fromOString(OString const &) = delete; + +template<> OString fromOString(OString const & s) { return s; } + +template<> OUString fromOString(OString const & s) +{ return OStringToOUString(s, osl_getThreadTextEncoding()); } + +template<typename T> bool realpath_(const T& pstrFileName, T& ppstrResolvedName) +{ + OString fn = toOString(pstrFileName); +#ifdef ANDROID + if (fn == "/assets" || fn.startsWith("/assets/")) + { + if (osl::access(fn, F_OK) == -1) + return false; + + ppstrResolvedName = pstrFileName; + + return true; + } +#endif + +#ifdef MACOSX + fn = macxp_resolveAliasAndConvert(fn); +#endif + + accessFilePathState *state = prepare_to_access_file_path(fn.getStr()); + + char rp[PATH_MAX]; + bool bRet = realpath(fn.getStr(), rp); + int saved_errno = errno; + if (!bRet) + SAL_INFO("sal.file", "realpath(" << fn << "): " << UnixErrnoString(saved_errno)); + else + SAL_INFO("sal.file", "realpath(" << fn << "): OK"); + + done_accessing_file_path(fn.getStr(), state); + + if (bRet) + { + ppstrResolvedName = fromOString<T>(OString(rp)); + } + + errno = saved_errno; + + return bRet; +} + +} + +bool osl::realpath(const OUString& pustrFileName, OUString& ppustrResolvedName) +{ + return realpath_(pustrFileName, ppustrResolvedName); +} + +bool osl::realpath(const OString& pstrFileName, OString& ppstrResolvedName) +{ + return realpath_(pstrFileName, ppstrResolvedName); +} + +int stat_c(const char* cpPath, struct stat* buf) +{ +#ifdef ANDROID + if (strncmp(cpPath, "/assets", sizeof("/assets")-1) == 0 && + (cpPath[sizeof("/assets")-1] == '\0' || + cpPath[sizeof("/assets")-1] == '/')) + return lo_apk_lstat(cpPath, buf); +#endif + + accessFilePathState *state = prepare_to_access_file_path(cpPath); + + int result = stat(cpPath, buf); + int saved_errno = errno; + if (result == -1) + SAL_INFO("sal.file", "stat(" << cpPath << "): " << UnixErrnoString(saved_errno)); + else + SAL_INFO("sal.file", "stat(" << cpPath << "): OK"); + + done_accessing_file_path(cpPath, state); + + errno = saved_errno; + + return result; +} + +int lstat_c(const char* cpPath, struct stat* buf) +{ +#ifdef ANDROID + if (strncmp(cpPath, "/assets", sizeof("/assets")-1) == 0 && + (cpPath[sizeof("/assets")-1] == '\0' || + cpPath[sizeof("/assets")-1] == '/')) + return lo_apk_lstat(cpPath, buf); +#endif + + accessFilePathState *state = prepare_to_access_file_path(cpPath); + + int result = lstat(cpPath, buf); + int saved_errno = errno; + if (result == -1) + SAL_INFO("sal.file", "lstat(" << cpPath << "): " << UnixErrnoString(saved_errno)); + else + SAL_INFO("sal.file", "lstat(" << cpPath << "): OK"); + + done_accessing_file_path(cpPath, state); + + errno = saved_errno; + + return result; +} + +namespace { + +template<typename T> int lstat_(const T& pstrPath, struct stat& buf) +{ + OString fn = toOString(pstrPath); + +#ifdef MACOSX + fn = macxp_resolveAliasAndConvert(fn); +#endif + + return lstat_c(fn.getStr(), &buf); +} + +} + +int osl::lstat(const OUString& pustrPath, struct stat& buf) +{ + return lstat_(pustrPath, buf); +} + +int osl::lstat(const OString& pstrPath, struct stat& buf) +{ + return lstat_(pstrPath, buf); +} + +int osl::mkdir(const OString& path, mode_t mode) +{ + accessFilePathState *state = prepare_to_access_file_path(path.getStr()); + + int result = ::mkdir(path.getStr(), mode); + int saved_errno = errno; + if (result == -1) + SAL_INFO("sal.file", "mkdir(" << path << ",0" << std::oct << mode << std::dec << "): " << UnixErrnoString(saved_errno)); + else + SAL_INFO("sal.file", "mkdir(" << path << ",0" << std::oct << mode << std::dec << "): OK"); + + done_accessing_file_path(path.getStr(), state); + + errno = saved_errno; + + return result; +} + +int open_c(const char *cpPath, int oflag, int mode) +{ + accessFilePathState *state = prepare_to_access_file_path(cpPath); + + int result = open(cpPath, oflag, mode); + int saved_errno = errno; + if (result == -1) + SAL_INFO("sal.file", "open(" << cpPath << ",0" << std::oct << oflag << ",0" << mode << std::dec << "): " << UnixErrnoString(saved_errno)); + else + SAL_INFO("sal.file", "open(" << cpPath << ",0" << std::oct << oflag << ",0" << mode << std::dec << ") => " << result); + +#if HAVE_FEATURE_MACOSX_SANDBOX + if (isSandboxed && result != -1 && (oflag & O_CREAT) && (oflag & O_EXCL)) + { + // A new file was created. Check if it is outside the sandbox. + // (In that case it must be one the user selected as export or + // save destination in a file dialog, otherwise we wouldn't + // have been able to create it.) Create and store a security + // scoped bookmark for it so that we can access the file in + // the future, too. (For the "Recent Files" functionality.) + const char *sandbox = [NSHomeDirectory() UTF8String]; + if (!(strncmp(sandbox, cpPath, strlen(sandbox)) == 0 && + cpPath[strlen(sandbox)] == '/')) + { + NSURL *url = [NSURL fileURLWithPath:[NSString stringWithUTF8String:cpPath]]; + NSData *data = [url bookmarkDataWithOptions:NSURLBookmarkCreationWithSecurityScope + includingResourceValuesForKeys:nil + relativeToURL:nil + error:nil]; + if (data != NULL) + { + [userDefaults setObject:data + forKey:[@"bookmarkFor:" stringByAppendingString:[url absoluteString]]]; + } + } + } +#endif + + done_accessing_file_path(cpPath, state); + + errno = saved_errno; + + return result; +} + +int utime_c(const char *cpPath, struct utimbuf *times) +{ + accessFilePathState *state = prepare_to_access_file_path(cpPath); + + int result = utime(cpPath, times); + + done_accessing_file_path(cpPath, state); + + return result; +} + +int ftruncate_with_name(int fd, sal_uInt64 uSize, rtl_String* path) +{ + /* When sandboxed on macOS, ftruncate(), even if it takes an + * already open file descriptor which was returned from an open() + * call already checked by the sandbox, still requires a security + * scope bookmark for the file to be active in case the file is + * one that the sandbox doesn't otherwise allow access to. Luckily + * LibreOffice usually calls ftruncate() through the helpful C++ + * abstraction layer that keeps the pathname around. + */ + + OString fn(path); + +#ifdef MACOSX + fn = macxp_resolveAliasAndConvert(fn); +#endif + + accessFilePathState *state = prepare_to_access_file_path(fn.getStr()); + + int result = ftruncate(fd, uSize); + int saved_errno = errno; + if (result < 0) + SAL_INFO("sal.file", "ftruncate(" << fd << "," << uSize << "): " << UnixErrnoString(saved_errno)); + else + SAL_INFO("sal.file", "ftruncate(" << fd << "," << uSize << "): OK"); + + done_accessing_file_path(fn.getStr(), state); + + errno = saved_errno; + + return result; +} + + +std::string UnixErrnoString(int nErrno) +{ + // Errnos from <asm-generic/errno-base.h> and <asm-generic/errno.h> on Linux and <sys/errno.h> + // on macOS. + switch (nErrno) + { + case EPERM: + return "EPERM"; + case ENOENT: + return "ENOENT"; + case ESRCH: + return "ESRCH"; + case EINTR: + return "EINTR"; + case EIO: + return "EIO"; + case ENXIO: + return "ENXIO"; + case E2BIG: + return "E2BIG"; + case ENOEXEC: + return "ENOEXEC"; + case EBADF: + return "EBADF"; + case ECHILD: + return "ECHILD"; + case EAGAIN: + return "EAGAIN"; + case ENOMEM: + return "ENOMEM"; + case EACCES: + return "EACCES"; + case EFAULT: + return "EFAULT"; +#ifdef ENOTBLK + case ENOTBLK: + return "ENOTBLK"; +#endif + case EBUSY: + return "EBUSY"; + case EEXIST: + return "EEXIST"; + case EXDEV: + return "EXDEV"; + case ENODEV: + return "ENODEV"; + case ENOTDIR: + return "ENOTDIR"; + case EISDIR: + return "EISDIR"; + case EINVAL: + return "EINVAL"; + case ENFILE: + return "ENFILE"; + case EMFILE: + return "EMFILE"; + case ENOTTY: + return "ENOTTY"; + case ETXTBSY: + return "ETXTBSY"; + case EFBIG: + return "EFBIG"; + case ENOSPC: + return "ENOSPC"; + case ESPIPE: + return "ESPIPE"; + case EROFS: + return "EROFS"; + case EMLINK: + return "EMLINK"; + case EPIPE: + return "EPIPE"; + case EDOM: + return "EDOM"; + case ERANGE: + return "ERANGE"; + case EDEADLK: + return "EDEADLK"; + case ENAMETOOLONG: + return "ENAMETOOLONG"; + case ENOLCK: + return "ENOLCK"; + case ENOSYS: + return "ENOSYS"; + case ENOTEMPTY: + return "ENOTEMPTY"; + case ELOOP: + return "ELOOP"; + case ENOMSG: + return "ENOMSG"; + case EIDRM: + return "EIDRM"; +#ifdef ECHRNG + case ECHRNG: + return "ECHRNG"; +#endif +#ifdef EL2NSYNC + case EL2NSYNC: + return "EL2NSYNC"; +#endif +#ifdef EL3HLT + case EL3HLT: + return "EL3HLT"; +#endif +#ifdef EL3RST + case EL3RST: + return "EL3RST"; +#endif +#ifdef ELNRNG + case ELNRNG: + return "ELNRNG"; +#endif +#ifdef EUNATCH + case EUNATCH: + return "EUNATCH"; +#endif +#ifdef ENOCSI + case ENOCSI: + return "ENOCSI"; +#endif +#ifdef EL2HLT + case EL2HLT: + return "EL2HLT"; +#endif +#ifdef EBADE + case EBADE: + return "EBADE"; +#endif +#ifdef EBADR + case EBADR: + return "EBADR"; +#endif +#ifdef EXFULL + case EXFULL: + return "EXFULL"; +#endif +#ifdef ENOANO + case ENOANO: + return "ENOANO"; +#endif +#ifdef EBADRQC + case EBADRQC: + return "EBADRQC"; +#endif +#ifdef EBADSLT + case EBADSLT: + return "EBADSLT"; +#endif +#ifdef EBFONT + case EBFONT: + return "EBFONT"; +#endif + case ENOSTR: + return "ENOSTR"; + case ENODATA: + return "ENODATA"; + case ETIME: + return "ETIME"; + case ENOSR: + return "ENOSR"; +#ifdef ENONET + case ENONET: + return "ENONET"; +#endif +#ifdef ENOPKG + case ENOPKG: + return "ENOPKG"; +#endif +#ifdef EREMOTE + case EREMOTE: + return "EREMOTE"; +#endif + case ENOLINK: + return "ENOLINK"; +#ifdef EADV + case EADV: + return "EADV"; +#endif +#ifdef ESRMNT + case ESRMNT: + return "ESRMNT"; +#endif +#ifdef ECOMM + case ECOMM: + return "ECOMM"; +#endif + case EPROTO: + return "EPROTO"; + case EMULTIHOP: + return "EMULTIHOP"; +#ifdef EDOTDOT + case EDOTDOT: + return "EDOTDOT"; +#endif + case EBADMSG: + return "EBADMSG"; + case EOVERFLOW: + return "EOVERFLOW"; +#ifdef ENOTUNIQ + case ENOTUNIQ: + return "ENOTUNIQ"; +#endif +#ifdef EBADFD + case EBADFD: + return "EBADFD"; +#endif +#ifdef EREMCHG + case EREMCHG: + return "EREMCHG"; +#endif +#ifdef ELIBACC + case ELIBACC: + return "ELIBACC"; +#endif +#ifdef ELIBBAD + case ELIBBAD: + return "ELIBBAD"; +#endif +#ifdef ELIBSCN + case ELIBSCN: + return "ELIBSCN"; +#endif +#ifdef ELIBMAX + case ELIBMAX: + return "ELIBMAX"; +#endif +#ifdef ELIBEXEC + case ELIBEXEC: + return "ELIBEXEC"; +#endif + case EILSEQ: + return "EILSEQ"; +#ifdef ERESTART + case ERESTART: + return "ERESTART"; +#endif +#ifdef ESTRPIPE + case ESTRPIPE: + return "ESTRPIPE"; +#endif +#ifdef EUSERS + case EUSERS: + return "EUSERS"; +#endif + case ENOTSOCK: + return "ENOTSOCK"; + case EDESTADDRREQ: + return "EDESTADDRREQ"; + case EMSGSIZE: + return "EMSGSIZE"; + case EPROTOTYPE: + return "EPROTOTYPE"; + case ENOPROTOOPT: + return "ENOPROTOOPT"; + case EPROTONOSUPPORT: + return "EPROTONOSUPPORT"; +#ifdef ESOCKTNOSUPPORT + case ESOCKTNOSUPPORT: + return "ESOCKTNOSUPPORT"; +#endif +#ifdef EOPNOTSUPP + case EOPNOTSUPP: + return "EOPNOTSUPP"; +#endif + case EPFNOSUPPORT: + return "EPFNOSUPPORT"; + case EAFNOSUPPORT: + return "EAFNOSUPPORT"; + case EADDRINUSE: + return "EADDRINUSE"; + case EADDRNOTAVAIL: + return "EADDRNOTAVAIL"; + case ENETDOWN: + return "ENETDOWN"; + case ENETUNREACH: + return "ENETUNREACH"; + case ENETRESET: + return "ENETRESET"; + case ECONNABORTED: + return "ECONNABORTED"; + case ECONNRESET: + return "ECONNRESET"; + case ENOBUFS: + return "ENOBUFS"; + case EISCONN: + return "EISCONN"; + case ENOTCONN: + return "ENOTCONN"; +#ifdef ESHUTDOWN + case ESHUTDOWN: + return "ESHUTDOWN"; +#endif +#ifdef ETOOMANYREFS + case ETOOMANYREFS: + return "ETOOMANYREFS"; +#endif + case ETIMEDOUT: + return "ETIMEDOUT"; + case ECONNREFUSED: + return "ECONNREFUSED"; +#ifdef EHOSTDOWN + case EHOSTDOWN: + return "EHOSTDOWN"; +#endif + case EHOSTUNREACH: + return "EHOSTUNREACH"; + case EALREADY: + return "EALREADY"; + case EINPROGRESS: + return "EINPROGRESS"; + case ESTALE: + return "ESTALE"; +#ifdef EUCLEAN + case EUCLEAN: + return "EUCLEAN"; +#endif +#ifdef ENOTNAM + case ENOTNAM: + return "ENOTNAM"; +#endif +#ifdef ENAVAIL + case ENAVAIL: + return "ENAVAIL"; +#endif +#ifdef EISNAM + case EISNAM: + return "EISNAM"; +#endif +#ifdef EREMOTEIO + case EREMOTEIO: + return "EREMOTEIO"; +#endif + case EDQUOT: + return "EDQUOT"; +#ifdef ENOMEDIUM + case ENOMEDIUM: + return "ENOMEDIUM"; +#endif +#ifdef EMEDIUMTYPE + case EMEDIUMTYPE: + return "EMEDIUMTYPE"; +#endif + case ECANCELED: + return "ECANCELED"; +#ifdef ENOKEY + case ENOKEY: + return "ENOKEY"; +#endif +#ifdef EKEYEXPIRED + case EKEYEXPIRED: + return "EKEYEXPIRED"; +#endif +#ifdef EKEYREVOKED + case EKEYREVOKED: + return "EKEYREVOKED"; +#endif +#ifdef EKEYREJECTED + case EKEYREJECTED: + return "EKEYREJECTED"; +#endif +#ifdef EOWNERDEAD + case EOWNERDEAD: + return "EOWNERDEAD"; +#endif +#ifdef ENOTRECOVERABLE + case ENOTRECOVERABLE: + return "ENOTRECOVERABLE"; +#endif +#ifdef ERFKILL + case ERFKILL: + return "ERFKILL"; +#endif +#ifdef EHWPOISON + case EHWPOISON: + return "EHWPOISON"; +#endif +#ifdef EPROCLIM + case EPROCLIM: + return "EPROCLIM"; +#endif +#ifdef EBADRPC + case EBADRPC: + return "EBADRPC"; +#endif +#ifdef ERPCMISMATCH + case ERPCMISMATCH: + return "ERPCMISMATCH"; +#endif +#ifdef EPROGUNAVAIL + case EPROGUNAVAIL: + return "EPROGUNAVAIL"; +#endif +#ifdef EPROGMISMATCH + case EPROGMISMATCH: + return "EPROGMISMATCH"; +#endif +#ifdef EPROCUNAVAIL + case EPROCUNAVAIL: + return "EPROCUNAVAIL"; +#endif +#ifdef EFTYPE + case EFTYPE: + return "EFTYPE"; +#endif +#ifdef EAUTH + case EAUTH: + return "EAUTH"; +#endif +#ifdef ENEEDAUTH + case ENEEDAUTH: + return "ENEEDAUTH"; +#endif +#ifdef EPWROFF + case EPWROFF: + return "EPWROFF"; +#endif +#ifdef EDEVERR + case EDEVERR: + return "EDEVERR"; +#endif +#ifdef EBADEXEC + case EBADEXEC: + return "EBADEXEC"; +#endif +#ifdef EBADARCH + case EBADARCH: + return "EBADARCH"; +#endif +#ifdef ESHLIBVERS + case ESHLIBVERS: + return "ESHLIBVERS"; +#endif +#ifdef EBADMACHO + case EBADMACHO: + return "EBADMACHO"; +#endif +#ifdef ENOATTR + case ENOATTR: + return "ENOATTR"; +#endif +#ifdef EQFULL + case EQFULL: + return "EQFULL"; +#endif + default: + char* str = strerror(nErrno); + return std::to_string(nErrno) + " (" + std::string(str) + ")"; + } +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |