janwas
668794e61d
networkInternal - remove E* error codes; rely on system <errno.h> header wposix: add all SUSv3 error codes; value = that of CRT (where available), otherwise the linux value This was SVN commit r3087.
445 lines
13 KiB
C
Executable File
445 lines
13 KiB
C
Executable File
// misc. POSIX routines for Win32
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//
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// Copyright (c) 2003 Jan Wassenberg
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//
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// This program is free software; you can redistribute it and/or
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// modify it under the terms of the GNU General Public License as
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// published by the Free Software Foundation; either version 2 of the
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// License, or (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful, but
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// WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// General Public License for more details.
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//
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// Contact info:
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// Jan.Wassenberg@stud.uni-karlsruhe.de
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// http://www.stud.uni-karlsruhe.de/~urkt/
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// note: try to avoid redefining CRT functions - if building against the
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// DLL CRT, the declarations will be incompatible. adding _CRTIMP to the decl
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// is a last resort (e.g. if the regular CRT headers would conflict).
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#ifndef __WPOSIX_H__
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#define __WPOSIX_H__
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// split out of this module.
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#include "wposix_types.h"
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#include "waio.h"
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#include "wsock.h"
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#include "wtime.h"
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#include "wpthread.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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// we define some CRT functions (e.g. access), because they're otherwise
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// only brought in by win-specific headers (here, <io.h>).
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// define correctly for static or DLL CRT in case the original header
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// is included, to avoid conflict warnings.
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#ifndef _CRTIMP
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# ifdef _DLL
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# define _CRTIMP __declspec(dllimport)
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# else
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# define _CRTIMP
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# endif
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#endif
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//
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// <limits.h>
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//
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#define PATH_MAX 255
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// Win32 MAX_PATH is 260
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#if OS_WIN
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# ifndef SIZE_MAX // VC2005 already defines this in limits.h
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# define SIZE_MAX 0xffffffff
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# endif
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#else
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# define SIZE_MAX 0xffffffffffffffff
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#endif
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//
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// sys/stat.h
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//
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// already defined by MinGW
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#if MSC_VERSION
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typedef unsigned int mode_t;
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#endif
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// VC libc includes stat, but it's quite slow.
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// we implement our own, but use the CRT struct definition.
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// rename the VC function definition to avoid conflict.
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/*
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#define stat vc_stat
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//
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// Extra hack for VC++ 2005, since it defines inline stat/fstat
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// functions inside stat.h (which get confused by the
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// macro-renaming of "stat")
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# if MSC_VERSION >= 1400
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# define RC_INVOKED // stat.h only includes stat.inl if "!defined(RC_INVOKED) && !defined(__midl)"
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# include <sys/stat.h>
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# undef RC_INVOKED
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# else
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# include <sys/stat.h>
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# endif
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#undef stat
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*/
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# include <sys/stat.h>
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extern int mkdir(const char*, mode_t);
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// currently only sets st_mode (file or dir) and st_size.
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//extern int stat(const char*, struct stat*);
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#define S_IRWXO 0xffff
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#define S_IRWXU 0xffff
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#define S_IRWXG 0xffff
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// stat.h _S_* values are wrong! disassembly shows _S_IWRITE is 0x80,
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// instead of 0x100. define christmas-tree value to be safe.
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#define S_ISDIR(m) (m & S_IFDIR)
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#define S_ISREG(m) (m & S_IFREG)
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//
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// dirent.h
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//
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typedef void DIR;
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struct dirent
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{
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// note: SUSv3 describes this as a "char array" but of unspecified size.
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// since that precludes using sizeof(), we may as well declare as a
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// pointer to avoid copying in the implementation.
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char* d_name;
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};
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extern DIR* opendir(const char* name);
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extern struct dirent* readdir(DIR*);
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extern int closedir(DIR*);
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// return status for the file returned by the last successful
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// readdir call from the given directory stream.
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// currently sets st_size, st_mode, and st_mtime; the rest are zeroed.
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// non-portable, but considerably faster than stat(). used by file_enum.
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extern int readdir_stat_np(DIR*, struct stat*);
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//
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// <sys/mman.h>
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//
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// mmap prot flags
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#define PROT_NONE 0x00
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#define PROT_READ 0x01
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#define PROT_WRITE 0x02
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#define PROT_EXEC 0x04
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// mmap flags
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#define MAP_SHARED 0x01 // writes change the underlying file
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#define MAP_PRIVATE 0x02 // writes do not affect the file (copy-on-write)
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#define MAP_FIXED 0x04
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// .. non-portable
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#define MAP_ANONYMOUS 0x10
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#define MAP_NORESERVE 0x20
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// note: we need a means of only "reserving" virtual address ranges
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// for the fixed-address expandable array mechanism. the non-portable
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// MAP_NORESERVE flag says that no space in the page file need be reserved.
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// the caller can still try to access the entire mapping, but might get
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// SIGBUS if there isn't enough room to commit a page. Linux currently
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// doesn't commit mmap-ed regions anyway, but we specify this flag to
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// make sure of that in the future.
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#define MAP_FAILED 0
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extern void* mmap(void* start, size_t len, int prot, int flags, int fd, off_t offset);
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extern int munmap(void* start, size_t len);
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extern int mprotect(void* addr, size_t len, int prot);
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//
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// <fcntl.h>
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//
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// values from MS _open - do not change!
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#define O_RDONLY 0x0000 // open for reading only
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#define O_WRONLY 0x0001 // open for writing only
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#define O_RDWR 0x0002 // open for reading and writing
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#define O_APPEND 0x0008 // writes done at eof
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#define O_CREAT 0x0100 // create and open file
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#define O_TRUNC 0x0200 // open and truncate
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#define O_EXCL 0x0400 // open only if file doesn't already exist
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// .. Win32-only (not specified by POSIX)
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#define O_TEXT_NP 0x4000 // file mode is text (translated)
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#define O_BINARY_NP 0x8000 // file mode is binary (untranslated)
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// .. wposix.cpp only (bit values not used by MS _open)
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#define O_NO_AIO_NP 0x20000
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// wposix-specific: do not open a separate AIO-capable handle.
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// this is used for small files where AIO overhead isn't worth it,
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// thus speeding up loading and reducing resource usage.
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// .. not supported by Win32 (bit values not used by MS _open)
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#define O_NONBLOCK 0x1000000
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// redefinition error here => io.h is getting included somewhere.
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// we implement this function, so the io.h definition conflicts if
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// compiling against the DLL CRT. either rename the io.h def
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// (as with vc_stat), or don't include io.h.
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extern int open(const char* fn, int mode, ...);
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//
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// <unistd.h>
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//
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// values from MS _access() implementation. do not change.
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#define F_OK 0
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#define R_OK 4
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#define W_OK 2
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#define X_OK 0
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// MS implementation doesn't support this distinction.
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// hence, the file is reported executable if it exists.
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extern int read (int fd, void* buf, size_t nbytes); // thunk
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extern int write(int fd, void* buf, size_t nbytes); // thunk
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extern _CRTIMP off_t lseek(int fd, off_t ofs, int whence);
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// redefinition error here => io.h is getting included somewhere.
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// we implement this function, so the io.h definition conflicts if
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// compiling against the DLL CRT. either rename the io.h def
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// (as with vc_stat), or don't include io.h.
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extern int close(int);
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extern _CRTIMP int access(const char*, int);
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extern int chdir(const char*);
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#undef getcwd
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extern char* getcwd(char*, size_t);
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// user tests if available via #ifdef; can't use enum.
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#define _SC_PAGESIZE 1
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#define _SC_PAGE_SIZE 1
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#define _SC_PHYS_PAGES 2
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#define _SC_AVPHYS_PAGES 3
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extern long sysconf(int name);
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//
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// <stdlib.h>
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//
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extern char* realpath(const char*, char*);
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//
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// <termios.h>
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//
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#define TCSANOW 0
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struct termios
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{
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long c_lflag;
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};
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#define ICANON 2 // do not change - correspond to ENABLE_LINE_INPUT / ENABLE_ECHO_INPUT
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#define ECHO 4
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extern int tcgetattr(int fd, struct termios* termios_p);
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extern int tcsetattr(int fd, int optional_actions, const struct termios* termios_p);
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//
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// <poll.h>
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//
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struct pollfd
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{
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int fd;
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short int events, revents;
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};
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#define POLLIN 1
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extern int poll(struct pollfd[], int, int);
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//
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// <dlfcn.h>
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//
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// these have no meaning for the Windows GetProcAddress implementation,
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// so they are ignored but provided for completeness.
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#define RTLD_LAZY 0x01
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#define RTLD_NOW 0x02
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#define RTLD_GLOBAL 0x04 // semantics are unsupported, so complain if set.
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#define RTLD_LOCAL 0x08
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extern int dlclose(void* handle);
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extern char* dlerror(void);
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extern void* dlopen(const char* so_name, int flags);
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extern void* dlsym(void* handle, const char* sym_name);
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//
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// <sys/utsname.h>
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//
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struct utsname
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{
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char sysname[9]; // Name of this implementation of the operating system.
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char nodename[16]; // Name of this node within an implementation-defined
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// communications network.
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// Win9x requires this minimum buffer size.
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char release[9]; // Current release level of this implementation.
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char version[16]; // Current version level of this release.
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char machine[9]; // Name of the hardware type on which the system is running.
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};
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extern int uname(struct utsname*);
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//
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// <errno.h>
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//
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#include <errno.h>
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// this is an exhaustive list of SUSv3 error codes;
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// see http://www.opengroup.org/onlinepubs/009695399/basedefs/errno.h.html .
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// .. the following are already correctly defined by VC errno.h:
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#if 0
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#define EPERM 1 // Operation not permitted
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#define ENOENT 2 // No such file or directory
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#define ESRCH 3 // No such process
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#define EINTR 4 // Interrupted system call
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#define EIO 5 // I/O error
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#define ENXIO 6 // No such device or address
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#define E2BIG 7 // Argument list too long
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#define ENOEXEC 8 // Exec format error
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#define EBADF 9 // Bad file number
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#define ECHILD 10 // No child processes
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#define EAGAIN 11 // Try again
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#define ENOMEM 12 // Out of memory
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#define EACCES 13 // Permission denied
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#define EFAULT 14 // Bad address
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#define EBUSY 16 // Device or resource busy
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#define EEXIST 17 // File exists
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#define ENODEV 19 // No such device
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#define ENOTDIR 20 // Not a directory
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#define EISDIR 21 // Is a directory
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#define EINVAL 22 // Invalid argument
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#define ENFILE 23 // File table overflow
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#define EMFILE 24 // Too many open files
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#define ENOTTY 25 // Not a typewriter
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#define EFBIG 27 // File too large
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#define ENOSPC 28 // No space left on device
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#define ESPIPE 29 // Illegal seek
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#define EMLINK 31 // Too many links
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#define EPIPE 32 // Broken pipe
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#define EDOM 33 // Math argument out of domain of func
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#define ERANGE 34 // Math result not representable
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#endif
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// .. the following are unfortunately defined differently by VC errno.h;
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// we have to stick with those interpretations because they are set
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// by already-compiled CRT code.
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#if 0
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#define EDEADLK 35 // Resource deadlock would occur
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#define ENAMETOOLONG 36 // File name too long
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#define ENOLCK 37 // No record locks available
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#define ENOSYS 38 // Function not implemented
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#define ENOTEMPTY 39 // Directory not empty
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#define EILSEQ 84 // Illegal byte sequence
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#endif
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// .. the following aren't yet defined; we take on the Linux values for
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// simplicity (why assign different values?)
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#define ELOOP 40 // Too many symbolic links encountered
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#define ENOMSG 42 // No message of desired type
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#define EIDRM 43 // Identifier removed
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#define EWOULDBLOCK EAGAIN // Operation would block
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#define ENOLINK 67 // Reserved
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#define EPROTO 71 // Protocol error
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#define EMULTIHOP 72 // Reserved
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#define EBADMSG 74 // Not a data message
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#define EOVERFLOW 75 // Value too large for defined data type
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#define ENOTSOCK 88 // Socket operation on non-socket
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#define EDESTADDRREQ 89 // Destination address required
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#define EMSGSIZE 90 // Message too long
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#define EPROTOTYPE 91 // Protocol wrong type for socket
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#define ENOPROTOOPT 92 // Protocol not available
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#define EPROTONOSUPPORT 93 // Protocol not supported
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#define EOPNOTSUPP 95 // Operation not supported on transport endpoint
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#define EAFNOSUPPORT 97 // Address family not supported by protocol
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#define EADDRINUSE 98 // Address already in use
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#define EADDRNOTAVAIL 99 // Cannot assign requested address
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#define ENETDOWN 100 // Network is down
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#define ENETUNREACH 101 // Network is unreachable
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#define ENETRESET 102 // Network dropped connection because of reset
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#define ECONNABORTED 103 // Software caused connection abort
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#define ECONNRESET 104 // Connection reset by peer
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#define ENOBUFS 105 // No buffer space available
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#define EISCONN 106 // Transport endpoint is already connected
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#define ENOTCONN 107 // Transport endpoint is not connected
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#define ETIMEDOUT 110 // Connection timed out
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#define ECONNREFUSED 111 // Connection refused
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#define EHOSTUNREACH 113 // No route to host
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#define EALREADY 114 // Operation already in progress
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#define EINPROGRESS 115 // Operation now in progress
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#define ESTALE 116 // Reserved
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#define EDQUOT 122 // Reserved
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#define ECANCELED 125 // Operation Canceled
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//
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// serial port IOCTL
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//
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// use with TIOCMBIS
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#define TIOCM_RTS 1
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// use with TIOCMGET or TIOCMIWAIT
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#define TIOCM_CD 0x80 // MS_RLSD_ON
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#define TIOCM_CTS 0x10 // MS_CTS_ON
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enum
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{
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TIOCMBIS, // set control line
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TIOCMGET, // get line state
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TIOCMIWAIT // wait for status change
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};
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extern int ioctl(int fd, int op, int* data);
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#ifndef _WINSOCKAPI_
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#define FIONREAD 0
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#endif
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extern void _get_console(void);
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extern void _hide_console(void);
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#ifdef __cplusplus
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}
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#endif
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#endif // #ifndef __WPOSIX_H__
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