X-Git-Url: https://wimlib.net/git/?p=wimlib;a=blobdiff_plain;f=src%2Fwin32_replacements.c;h=cd309eb4b734ee2203f9b4684d2b1825ddb598f2;hp=39f031bb4d372f496e76c9b3d53716a586701d89;hb=5ec910e4e9126a37eed1ff199d55a1952c76e0f7;hpb=0f54c853de1450b7487077264f4031c061f3795b diff --git a/src/win32_replacements.c b/src/win32_replacements.c index 39f031bb..cd309eb4 100644 --- a/src/win32_replacements.c +++ b/src/win32_replacements.c @@ -6,20 +6,18 @@ /* * Copyright (C) 2013 Eric Biggers * - * This file is part of wimlib, a library for working with WIM files. + * This file is free software; you can redistribute it and/or modify it under + * the terms of the GNU Lesser General Public License as published by the Free + * Software Foundation; either version 3 of the License, or (at your option) any + * later version. * - * wimlib is free software; you can redistribute it and/or modify it under the - * terms of the GNU General Public License as published by the Free - * Software Foundation; either version 3 of the License, or (at your option) - * any later version. - * - * wimlib is distributed in the hope that it will be useful, but WITHOUT ANY - * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR - * A PARTICULAR PURPOSE. See the GNU General Public License for more + * This file is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS + * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more * details. * - * You should have received a copy of the GNU General Public License - * along with wimlib; if not, see http://www.gnu.org/licenses/. + * You should have received a copy of the GNU Lesser General Public License + * along with this file; if not, see http://www.gnu.org/licenses/. */ #ifdef __WIN32__ @@ -31,6 +29,7 @@ #include #include #include /* for _get_osfhandle() */ +#include #include "wimlib/win32_common.h" @@ -39,6 +38,287 @@ #include "wimlib/error.h" #include "wimlib/util.h" +static int +win32_error_to_errno(DWORD err_code) +{ + /* This mapping is that used in Cygwin. + * Some of these choices are arbitrary. */ + switch (err_code) { + case ERROR_ACCESS_DENIED: + return EACCES; + case ERROR_ACTIVE_CONNECTIONS: + return EAGAIN; + case ERROR_ALREADY_EXISTS: + return EEXIST; + case ERROR_BAD_DEVICE: + return ENODEV; + case ERROR_BAD_EXE_FORMAT: + return ENOEXEC; + case ERROR_BAD_NETPATH: + return ENOENT; + case ERROR_BAD_NET_NAME: + return ENOENT; + case ERROR_BAD_NET_RESP: + return ENOSYS; + case ERROR_BAD_PATHNAME: + return ENOENT; + case ERROR_BAD_PIPE: + return EINVAL; + case ERROR_BAD_UNIT: + return ENODEV; + case ERROR_BAD_USERNAME: + return EINVAL; + case ERROR_BEGINNING_OF_MEDIA: + return EIO; + case ERROR_BROKEN_PIPE: + return EPIPE; + case ERROR_BUSY: + return EBUSY; + case ERROR_BUS_RESET: + return EIO; + case ERROR_CALL_NOT_IMPLEMENTED: + return ENOSYS; + case ERROR_CANNOT_MAKE: + return EPERM; + case ERROR_CHILD_NOT_COMPLETE: + return EBUSY; + case ERROR_COMMITMENT_LIMIT: + return EAGAIN; + case ERROR_CRC: + return EIO; + case ERROR_DEVICE_DOOR_OPEN: + return EIO; + case ERROR_DEVICE_IN_USE: + return EAGAIN; + case ERROR_DEVICE_REQUIRES_CLEANING: + return EIO; + case ERROR_DIRECTORY: + return ENOTDIR; + case ERROR_DIR_NOT_EMPTY: + return ENOTEMPTY; + case ERROR_DISK_CORRUPT: + return EIO; + case ERROR_DISK_FULL: + return ENOSPC; +#ifdef ENOTUNIQ + case ERROR_DUP_NAME: + return ENOTUNIQ; +#endif + case ERROR_EAS_DIDNT_FIT: + return ENOSPC; +#ifdef ENOTSUP + case ERROR_EAS_NOT_SUPPORTED: + return ENOTSUP; +#endif + case ERROR_EA_LIST_INCONSISTENT: + return EINVAL; + case ERROR_EA_TABLE_FULL: + return ENOSPC; + case ERROR_END_OF_MEDIA: + return ENOSPC; + case ERROR_EOM_OVERFLOW: + return EIO; + case ERROR_EXE_MACHINE_TYPE_MISMATCH: + return ENOEXEC; + case ERROR_EXE_MARKED_INVALID: + return ENOEXEC; + case ERROR_FILEMARK_DETECTED: + return EIO; + case ERROR_FILENAME_EXCED_RANGE: + return ENAMETOOLONG; + case ERROR_FILE_CORRUPT: + return EEXIST; + case ERROR_FILE_EXISTS: + return EEXIST; + case ERROR_FILE_INVALID: + return ENXIO; + case ERROR_FILE_NOT_FOUND: + return ENOENT; + case ERROR_HANDLE_DISK_FULL: + return ENOSPC; +#ifdef ENODATA + case ERROR_HANDLE_EOF: + return ENODATA; +#endif + case ERROR_INVALID_ADDRESS: + return EINVAL; + case ERROR_INVALID_AT_INTERRUPT_TIME: + return EINTR; + case ERROR_INVALID_BLOCK_LENGTH: + return EIO; + case ERROR_INVALID_DATA: + return EINVAL; + case ERROR_INVALID_DRIVE: + return ENODEV; + case ERROR_INVALID_EA_NAME: + return EINVAL; + case ERROR_INVALID_EXE_SIGNATURE: + return ENOEXEC; +#ifdef EBADRQC + case ERROR_INVALID_FUNCTION: + return EBADRQC; +#endif + case ERROR_INVALID_HANDLE: + return EBADF; + case ERROR_INVALID_NAME: + return ENOENT; + case ERROR_INVALID_PARAMETER: + return EINVAL; + case ERROR_INVALID_SIGNAL_NUMBER: + return EINVAL; + case ERROR_IOPL_NOT_ENABLED: + return ENOEXEC; + case ERROR_IO_DEVICE: + return EIO; + case ERROR_IO_INCOMPLETE: + return EAGAIN; + case ERROR_IO_PENDING: + return EAGAIN; + case ERROR_LOCK_VIOLATION: + return EBUSY; + case ERROR_MAX_THRDS_REACHED: + return EAGAIN; + case ERROR_META_EXPANSION_TOO_LONG: + return EINVAL; + case ERROR_MOD_NOT_FOUND: + return ENOENT; +#ifdef EMSGSIZE + case ERROR_MORE_DATA: + return EMSGSIZE; +#endif + case ERROR_NEGATIVE_SEEK: + return EINVAL; + case ERROR_NETNAME_DELETED: + return ENOENT; + case ERROR_NOACCESS: + return EFAULT; + case ERROR_NONE_MAPPED: + return EINVAL; + case ERROR_NONPAGED_SYSTEM_RESOURCES: + return EAGAIN; +#ifdef ENOLINK + case ERROR_NOT_CONNECTED: + return ENOLINK; +#endif + case ERROR_NOT_ENOUGH_MEMORY: + return ENOMEM; + case ERROR_NOT_OWNER: + return EPERM; +#ifdef ENOMEDIUM + case ERROR_NOT_READY: + return ENOMEDIUM; +#endif + case ERROR_NOT_SAME_DEVICE: + return EXDEV; + case ERROR_NOT_SUPPORTED: + return ENOSYS; + case ERROR_NO_DATA: + return EPIPE; + case ERROR_NO_DATA_DETECTED: + return EIO; +#ifdef ENOMEDIUM + case ERROR_NO_MEDIA_IN_DRIVE: + return ENOMEDIUM; +#endif +#ifdef ENMFILE + case ERROR_NO_MORE_FILES: + return ENMFILE; +#endif +#ifdef ENMFILE + case ERROR_NO_MORE_ITEMS: + return ENMFILE; +#endif + case ERROR_NO_MORE_SEARCH_HANDLES: + return ENFILE; + case ERROR_NO_PROC_SLOTS: + return EAGAIN; + case ERROR_NO_SIGNAL_SENT: + return EIO; + case ERROR_NO_SYSTEM_RESOURCES: + return EFBIG; + case ERROR_NO_TOKEN: + return EINVAL; + case ERROR_OPEN_FAILED: + return EIO; + case ERROR_OPEN_FILES: + return EAGAIN; + case ERROR_OUTOFMEMORY: + return ENOMEM; + case ERROR_PAGED_SYSTEM_RESOURCES: + return EAGAIN; + case ERROR_PAGEFILE_QUOTA: + return EAGAIN; + case ERROR_PATH_NOT_FOUND: + return ENOENT; + case ERROR_PIPE_BUSY: + return EBUSY; + case ERROR_PIPE_CONNECTED: + return EBUSY; +#ifdef ECOMM + case ERROR_PIPE_LISTENING: + return ECOMM; + case ERROR_PIPE_NOT_CONNECTED: + return ECOMM; +#endif + case ERROR_POSSIBLE_DEADLOCK: + return EDEADLOCK; + case ERROR_PRIVILEGE_NOT_HELD: + return EPERM; + case ERROR_PROCESS_ABORTED: + return EFAULT; + case ERROR_PROC_NOT_FOUND: + return ESRCH; +#ifdef ENONET + case ERROR_REM_NOT_LIST: + return ENONET; +#endif + case ERROR_SECTOR_NOT_FOUND: + return EINVAL; + case ERROR_SEEK: + return EINVAL; + case ERROR_SETMARK_DETECTED: + return EIO; + case ERROR_SHARING_BUFFER_EXCEEDED: + return ENOLCK; + case ERROR_SHARING_VIOLATION: + return EBUSY; + case ERROR_SIGNAL_PENDING: + return EBUSY; + case ERROR_SIGNAL_REFUSED: + return EIO; +#ifdef ELIBBAD + case ERROR_SXS_CANT_GEN_ACTCTX: + return ELIBBAD; +#endif + case ERROR_THREAD_1_INACTIVE: + return EINVAL; + case ERROR_TOO_MANY_LINKS: + return EMLINK; + case ERROR_TOO_MANY_OPEN_FILES: + return EMFILE; + case ERROR_WAIT_NO_CHILDREN: + return ECHILD; + case ERROR_WORKING_SET_QUOTA: + return EAGAIN; + case ERROR_WRITE_PROTECT: + return EROFS; + default: + return -1; + } +} + +static void +set_errno_from_win32_error(DWORD err) +{ + errno = win32_error_to_errno(err); +} + +static void +set_errno_from_GetLastError(void) +{ + set_errno_from_win32_error(GetLastError()); +} + /* Replacement for POSIX fsync() */ int fsync(int fd) @@ -59,7 +339,7 @@ err: /* Use the Win32 API to get the number of processors. */ unsigned -win32_get_number_of_processors(void) +get_available_cpus(void) { SYSTEM_INFO sysinfo; GetSystemInfo(&sysinfo); @@ -68,13 +348,13 @@ win32_get_number_of_processors(void) /* Use the Win32 API to get the amount of available memory. */ u64 -win32_get_avail_memory(void) +get_available_memory(void) { MEMORYSTATUSEX status = { .dwLength = sizeof(status), }; GlobalMemoryStatusEx(&status); - return status.ullTotalPhys; + return (u64)min(status.ullTotalPhys, status.ullTotalVirtual) * 85 / 100; } /* Replacement for POSIX-2008 realpath(). Warning: partial functionality only @@ -191,7 +471,7 @@ err_set_errno: /* This really could be replaced with _wcserror_s, but this doesn't seem to * actually be available in MSVCRT.DLL on Windows XP (perhaps it's statically * linked in by Visual Studio...?). */ -extern int +int win32_strerror_r_replacement(int errnum, wchar_t *buf, size_t buflen) { static pthread_mutex_t strerror_lock = PTHREAD_MUTEX_INITIALIZER; @@ -269,36 +549,6 @@ pwrite(int fd, const void *buf, size_t count, off_t offset) return do_pread_or_pwrite(fd, (void*)buf, count, offset, true); } -int -win32_get_file_and_vol_ids(const wchar_t *path, u64 *ino_ret, u64 *dev_ret) -{ - HANDLE h; - BY_HANDLE_FILE_INFORMATION file_info; - int ret; - DWORD err; - - h = win32_open_existing_file(path, FILE_READ_ATTRIBUTES); - if (h == INVALID_HANDLE_VALUE) { - ret = WIMLIB_ERR_OPEN; - goto out; - } - - if (!GetFileInformationByHandle(h, &file_info)) { - ret = WIMLIB_ERR_STAT; - } else { - *ino_ret = ((u64)file_info.nFileIndexHigh << 32) | - (u64)file_info.nFileIndexLow; - *dev_ret = file_info.dwVolumeSerialNumber; - ret = 0; - } - err = GetLastError(); - CloseHandle(h); - SetLastError(err); -out: - set_errno_from_GetLastError(); - return ret; -} - /* Replacement for glob() in Windows native builds that operates on wide * characters. */ int @@ -402,4 +652,33 @@ globfree(glob_t *pglob) FREE(pglob->gl_pathv); } +/* Replacement for fopen(path, "a") that doesn't prevent other processes from + * reading the file */ +FILE * +win32_open_logfile(const wchar_t *path) +{ + HANDLE h; + int fd; + FILE *fp; + + h = CreateFile(path, FILE_APPEND_DATA, FILE_SHARE_VALID_FLAGS, + NULL, OPEN_ALWAYS, 0, NULL); + if (h == INVALID_HANDLE_VALUE) + return NULL; + + fd = _open_osfhandle((intptr_t)h, O_APPEND); + if (fd < 0) { + CloseHandle(h); + return NULL; + } + + fp = fdopen(fd, "a"); + if (!fp) { + close(fd); + return NULL; + } + + return fp; +} + #endif /* __WIN32__ */