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commit new iposix.c/.h
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//=====================================================================
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//
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// iposix.h - posix file system accessing
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//
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// NOTE:
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// for more information, please see the readme file.
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//
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//=====================================================================
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#ifndef __IPOSIX_H__
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#define __IPOSIX_H__
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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/*-------------------------------------------------------------------*/
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/* C99 Compatible */
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/*-------------------------------------------------------------------*/
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#if defined(linux) || defined(__linux) || defined(__linux__)
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#ifdef _POSIX_C_SOURCE
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#if _POSIX_C_SOURCE < 200112L
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#undef _POSIX_C_SOURCE
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#endif
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#endif
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#ifndef _POSIX_C_SOURCE
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#define _POSIX_C_SOURCE 200112L
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#endif
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#ifdef _GNU_SOURCE
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#undef _GNU_SOURCE
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#endif
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#ifdef _BSD_SOURCE
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#undef _BSD_SOURCE
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#endif
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#ifdef __BSD_VISIBLE
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#undef __BSD_VISIBLE
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#endif
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#ifdef _XOPEN_SOURCE
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#undef _XOPEN_SOURCE
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#endif
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#define _GNU_SOURCE 1
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#define _BSD_SOURCE 1
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#define __BSD_VISIBLE 1
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#define _XOPEN_SOURCE 600
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#endif
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#ifndef IDISABLE_FILE_SYSTEM_ACCESS
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//---------------------------------------------------------------------
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// Global Definition
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//---------------------------------------------------------------------
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#ifndef __INTEGER_32_BITS__
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#define __INTEGER_32_BITS__
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#if defined(__UINT32_TYPE__) && defined(__UINT32_TYPE__)
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typedef __UINT32_TYPE__ ISTDUINT32;
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typedef __INT32_TYPE__ ISTDINT32;
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#elif defined(__UINT_FAST32_TYPE__) && defined(__INT_FAST32_TYPE__)
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typedef __UINT_FAST32_TYPE__ ISTDUINT32;
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typedef __INT_FAST32_TYPE__ ISTDINT32;
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#elif defined(_WIN64) || defined(WIN64) || defined(__amd64__) || \
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defined(__x86_64) || defined(__x86_64__) || defined(_M_IA64) || \
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defined(_M_AMD64)
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typedef unsigned int ISTDUINT32;
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typedef int ISTDINT32;
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#elif defined(_WIN32) || defined(WIN32) || defined(__i386__) || \
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defined(__i386) || defined(_M_X86)
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typedef unsigned long ISTDUINT32;
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typedef long ISTDINT32;
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#elif defined(__MACOS__)
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typedef UInt32 ISTDUINT32;
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typedef SInt32 ISTDINT32;
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#elif defined(__APPLE__) && defined(__MACH__)
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#include <sys/types.h>
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typedef u_int32_t ISTDUINT32;
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typedef int32_t ISTDINT32;
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#elif defined(__BEOS__)
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#include <sys/inttypes.h>
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typedef u_int32_t ISTDUINT32;
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typedef int32_t ISTDINT32;
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#elif (defined(_MSC_VER) || defined(__BORLANDC__)) && (!defined(__MSDOS__))
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typedef unsigned __int32 ISTDUINT32;
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typedef __int32 ISTDINT32;
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#elif defined(__GNUC__) && (__GNUC__ > 3)
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#include <stdint.h>
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typedef uint32_t ISTDUINT32;
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typedef int32_t ISTDINT32;
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#else
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typedef unsigned long ISTDUINT32;
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typedef long ISTDINT32;
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#endif
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#endif
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#if (defined(__APPLE__) && defined(__MACH__)) || defined(__MACOS__)
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#ifndef __unix
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#define __unix 1
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#endif
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#endif
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#if defined(__unix__) || defined(unix) || defined(__linux)
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#ifndef __unix
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#define __unix 1
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#endif
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#endif
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#include <stdio.h>
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#ifdef __unix
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#include <unistd.h>
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#define IPATHSEP '/'
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#else
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#include <direct.h>
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#if defined(_WIN32)
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#define IPATHSEP '\\'
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#else
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#define IPATHSEP '/'
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#endif
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#endif
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#ifndef __IINT8_DEFINED
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#define __IINT8_DEFINED
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typedef char IINT8;
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#endif
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#ifndef __IUINT8_DEFINED
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#define __IUINT8_DEFINED
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typedef unsigned char IUINT8;
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#endif
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#ifndef __IUINT16_DEFINED
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#define __IUINT16_DEFINED
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typedef unsigned short IUINT16;
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#endif
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#ifndef __IINT16_DEFINED
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#define __IINT16_DEFINED
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typedef short IINT16;
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#endif
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#ifndef __IINT32_DEFINED
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#define __IINT32_DEFINED
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typedef ISTDINT32 IINT32;
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#endif
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#ifndef __IUINT32_DEFINED
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#define __IUINT32_DEFINED
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typedef ISTDUINT32 IUINT32;
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#endif
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#ifndef __IINT64_DEFINED
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#define __IINT64_DEFINED
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#if defined(_MSC_VER) || defined(__BORLANDC__)
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typedef __int64 IINT64;
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#else
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typedef long long IINT64;
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#endif
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#endif
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#ifndef __IUINT64_DEFINED
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#define __IUINT64_DEFINED
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#if defined(_MSC_VER) || defined(__BORLANDC__)
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typedef unsigned __int64 IUINT64;
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#else
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typedef unsigned long long IUINT64;
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#endif
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#endif
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#if defined(WIN32) || defined(_WIN32) || defined(WIN64) || defined(_WIN64)
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#ifndef _WIN32
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#define _WIN32
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#endif
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#endif
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#ifdef __cplusplus
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extern "C" {
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#endif
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//---------------------------------------------------------------------
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// Posix Stat
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//---------------------------------------------------------------------
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#define ISTAT_IFMT 0170000 // file type mask
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#define ISTAT_IFIFO 0010000 // named pipe (fifo)
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#define ISTAT_IFCHR 0020000 // charactor special
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#define ISTAT_IFDIR 0040000 // directory
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#define ISTAT_IFBLK 0060000 // block special
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#define ISTAT_IFREG 0100000 // regular
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#define ISTAT_IFLNK 0120000 // symbolic link
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#define ISTAT_IFSOCK 0140000 // socket
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#define ISTAT_IFWHT 0160000 // whiteout
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#define ISTAT_ISUID 0004000 // set user id on execution
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#define ISTAT_ISGID 0002000 // set group id on execution
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#define ISTAT_ISVXT 0001000 // swapped text even after use
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#define ISTAT_IRWXU 0000700 // owner RWX mask
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#define ISTAT_IRUSR 0000400 // owner read permission
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#define ISTAT_IWUSR 0000200 // owner writer permission
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#define ISTAT_IXUSR 0000100 // owner execution permission
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#define ISTAT_IRWXG 0000070 // group RWX mask
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#define ISTAT_IRGRP 0000040 // group read permission
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#define ISTAT_IWGRP 0000020 // group write permission
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#define ISTAT_IXGRP 0000010 // group execution permission
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#define ISTAT_IRWXO 0000007 // other RWX mask
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#define ISTAT_IROTH 0000004 // other read permission
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#define ISTAT_IWOTH 0000002 // other writer permission
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#define ISTAT_IXOTH 0000001 // other execution permission
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#define ISTAT_ISFMT(m, t) (((m) & ISTAT_IFMT) == (t))
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#define ISTAT_ISDIR(m) ISTAT_ISFMT(m, ISTAT_IFDIR)
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#define ISTAT_ISCHR(m) ISTAT_ISFMT(m, ISTAT_IFCHR)
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#define ISTAT_ISBLK(m) ISTAT_ISFMT(m, ISTAT_IFBLK)
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#define ISTAT_ISREG(m) ISTAT_ISFMT(m, ISTAT_IFREG)
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#define ISTAT_ISFIFO(m) ISTAT_ISFMT(m, ISTAT_IFIFO)
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#define ISTAT_ISLNK(m) ISTAT_ISFMT(m, ISTAT_IFLNK)
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#define ISTAT_ISSOCK(m) ISTAT_ISFMT(m, ISTAT_IFSOCK)
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#define ISTAT_ISWHT(m) ISTAT_ISFMT(m, ISTAT_IFWHT)
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struct IPOSIX_STAT
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{
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IUINT32 st_mode;
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IUINT64 st_ino;
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IUINT32 st_dev;
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IUINT32 st_nlink;
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IUINT32 st_uid;
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IUINT32 st_gid;
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IUINT64 st_size;
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IUINT32 atime;
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IUINT32 mtime;
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IUINT32 ctime;
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IUINT32 st_blocks;
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IUINT32 st_blksize;
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IUINT32 st_rdev;
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IUINT32 st_flags;
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};
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typedef struct IPOSIX_STAT iposix_stat_t;
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#define IPOSIX_MAXPATH 1024
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#define IPOSIX_MAXBUFF ((IPOSIX_MAXPATH) + 8)
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// returns 0 for success, -1 for error
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int iposix_stat(const char *path, iposix_stat_t *ostat);
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// returns 0 for success, -1 for error
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int iposix_lstat(const char *path, iposix_stat_t *ostat);
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// returns 0 for success, -1 for error
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int iposix_fstat(int fd, iposix_stat_t *ostat);
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// get current directory
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char *iposix_getcwd(char *path, int size);
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// create directory
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int iposix_mkdir(const char *path, int mode);
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// change directory
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int iposix_chdir(const char *path);
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#ifndef F_OK
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#define F_OK 0
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#endif
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#ifndef X_OK
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#define X_OK 1
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#endif
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#ifndef W_OK
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#define W_OK 2
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#endif
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#ifndef R_OK
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#define R_OK 4
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#endif
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// check access
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int iposix_access(const char *path, int mode);
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// returns 1 for true 0 for false, -1 for not exist
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int iposix_path_isdir(const char *path);
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// returns 1 for true 0 for false, -1 for not exist
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int iposix_path_isfile(const char *path);
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// returns 1 for true 0 for false, -1 for not exist
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int iposix_path_islink(const char *path);
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// returns 1 for true 0 for false
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int iposix_path_exists(const char *path);
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// returns file size, -1 for error
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IINT64 iposix_path_getsize(const char *path);
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//---------------------------------------------------------------------
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// Posix Path
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//---------------------------------------------------------------------
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// 是否是绝对路径，如果是的话返回1，否则返回0
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int iposix_path_isabs(const char *path);
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// 绝对路径
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char *iposix_path_abspath(const char *srcpath, char *path, int maxsize);
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// 归一化路径：去掉重复斜杠，以及处理掉".", ".."等。
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char *iposix_path_normal(const char *srcpath, char *path, int maxsize);
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// 连接路径
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char *iposix_path_join(const char *p1, const char *p2, char *path, int len);
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// 路径分割：从右向左找到第一个"/"分成两个字符串
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int iposix_path_split(const char *path, char *p1, int l1, char *p2, int l2);
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// 扩展分割：分割文件主名与扩展名
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int iposix_path_splitext(const char *path, char *p1, int l1,
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char *p2, int l2);
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//---------------------------------------------------------------------
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// platform special
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//---------------------------------------------------------------------
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// 取得进程可执行文件的文件名
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int iposix_path_exepath(char *ptr, int size);
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// 取得进程可执行文件的目录
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int iposix_path_execwd(char *ptr, int size);
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// 递归创建路径
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int iposix_path_mkdir(const char *path, int mode);
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// 精简版取得可执行路径
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const char *iposix_get_exepath(void);
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// 精简版取得可执行目录
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const char *iposix_get_execwd(void);
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// 文件路径格式化：
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// out - 输出路径，长度不小于 IPOSIX_MAXPATH
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// root - 根路径
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// ... - 后续的相对路径
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// 返回 - out
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// 假设可执行路径位于 /home/abc/work，那么：
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// iposix_path_format(out, iposix_get_execwd(), "images/%s", "abc.jpg")
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// 结果就是 /home/abc/work/images/abc.jpg
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char *iposix_path_format(char *out, const char *root, const char *fmt, ...);
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//---------------------------------------------------------------------
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// System Utilities
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//---------------------------------------------------------------------
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#ifndef IDISABLE_SHARED_LIBRARY
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/* LoadLibraryA */
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void *iposix_shared_open(const char *dllname);
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/* GetProcAddress */
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void *iposix_shared_get(void *shared, const char *name);
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/* FreeLibrary */
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void iposix_shared_close(void *shared);
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#endif
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#ifndef IDISABLE_FILE_SYSTEM_ACCESS
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/* load file content, use free to dispose */
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void *iposix_file_load_content(const char *filename, long *size);
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/* save file content */
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int iposix_file_save_content(const char *filename, const void *data, long size);
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/* cross os GetModuleFileName, returns size for success, -1 for error */
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int iposix_get_proc_pathname(char *ptr, int size);
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#endif
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#ifdef __cplusplus
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}
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#endif
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#endif
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#endif
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