/* * unistd.h * * Copyright by WATCOM International Corp. 1988-1996. All rights reserved. * Copyright by QNX Software Systems Limited 1990-1996. All rights reserved. */ #ifndef _UNISTD_H_INCLUDED #ifdef __cplusplus extern "C" { #endif #ifndef __TYPES_H_INCLUDED #include #endif #ifndef NULL #if defined(__SMALL__) || defined(__MEDIUM__) || defined(__386__) #define NULL 0 #else #define NULL 0L #endif #endif /* Symbolic constants for the access() function */ #define R_OK 4 /* Test for read permission */ #define W_OK 2 /* Test for write permission */ #define X_OK 1 /* Test for execute permission */ #define F_OK 0 /* Test for existence of file */ /* Symbolic constants for the lseek() function */ #ifndef _SEEKPOS_DEFINED_ /* If not already defined, define them */ #define SEEK_SET 0 /* Seek relative to the start of file */ #define SEEK_CUR 1 /* Seek relative to current position */ #define SEEK_END 2 /* Seek relative to the end of the file */ #define _SEEKPOS_DEFINED_ #endif /* Symbolic constants for stream I/O */ #define STDIN_FILENO 0 #define STDOUT_FILENO 1 #define STDERR_FILENO 2 /* Compile-time Symbolic Constants for Portability Specifications */ #undef _POSIX_JOB_CONTROL /* no job control */ #define _POSIX_SAVED_IDS 1 /* no saved-set user-ID & group-ID */ #define _POSIX_VERSION 198808L /* YYYYmm of POSIX std approval */ #define _POSIX_PROCESS_SCHEDULING 1 #define _POSIX_TIMERS 1 #if defined(_QNX_C_SOURCE) && (_QNX_C_SOURCE >= 425) /* POSIX threads */ #define _POSIX_THREADS /* POSIX threads feature tests */ #define _POSIX_THREAD_ATTR_STACKADDR #define _POSIX_THREAD_ATTR_STACKSIZE #define _POSIX_THREAD_PRIORITY_SCHEDULING #define _POSIX_THREAD_PRIO_INHERIT #undef _POSIX_THREAD_PRIO_PROTECT #define _POSIX_THREAD_PROCESS_SHARED #undef _POSIX_THREAD_SAFE_FUNCTIONS #endif /* Symbolic constants for sysconf */ /* caution: the module sysconf.c bound checks _SC_ARG_MAX ... _SC_PAGESIZE */ #define _SC_ARG_MAX 1 #define _SC_CHILD_MAX 2 #define _SC_CLK_TCK 3 #define _SC_NGROUPS_MAX 4 #define _SC_OPEN_MAX 5 #define _SC_JOB_CONTROL 6 #define _SC_SAVED_IDS 7 #define _SC_VERSION 8 #define _SC_STREAM_MAX 9 #define _SC_TZNAME_MAX 10 #define _SC_PAGESIZE 11 /* Execution-time Symbolic Constants for Portability Specifications */ #define _POSIX_CHOWN_RESTRICTED 0 /* restricted use of chown() */ #define _POSIX_NO_TRUNC 0 /* pathname components > NAME_MAX */ #define _POSIX_VDISABLE 0x00 /* terminal special chars can be disabled */ /* Symbolic constants for pathconf, fpathconf */ #define _PC_LINK_MAX 1 #define _PC_MAX_CANON 2 #define _PC_MAX_INPUT 3 #define _PC_NAME_MAX 4 #define _PC_PATH_MAX 5 #define _PC_PIPE_BUF 6 #define _PC_CHOWN_RESTRICTED 7 #define _PC_NO_TRUNC 8 #define _PC_VDISABLE 9 #define _PC_DOS_SHARE 10 /* test for dos share support */ #define _PC_DOS_LOCKS 11 /* test for dos locking support */ #if defined(_POSIX_SOURCE) || !defined(NO_EXT_KEYS) /*extensions enabled*/ extern int optind; /* index of current option being scanned */ extern char *optarg; /* points to optional argument */ extern int opterr; /* print|don't print error message */ extern int optopt; /* offending letter when error detected */ /* Symbolic constants for confstr */ #define _CS_PATH 1 #endif /* * POSIX 1003.1 Prototypes */ #if defined(_POSIX_SOURCE) || defined(_QNX_SOURCE) || !defined(NO_EXT_KEYS) extern void _exit( int __status ); #endif extern int access( const char *__path, int __mode ); #if defined(__386__) extern int brk(void *endds); extern void *sbrk(int incr); #endif extern int chdir( const char *__path ); extern int close( int __fildes ); extern int dup( int __fildes ); extern char *getcwd( char *__buf, size_t __size ); extern pid_t getpid( void ); extern int isatty( int __fildes ); extern off_t lseek( int __fildes, off_t __offset, int __whence ); extern ssize_t read( int __fildes, void *__buffer, size_t __len ); extern int rmdir( const char *__path ); #if !(defined(SYSV) || defined(BSD) || defined(XENIX) || defined(_UNIX_H_INCLUDED)) extern int setmode( int __handle, int __mode ); #endif extern unsigned int sleep( unsigned int __seconds ); extern int unlink( const char *__path ); extern ssize_t write( int __fildes, const void *__buf, size_t __len ); extern unsigned alarm( unsigned int __seconds ); extern int chown( const char *__path, uid_t __owner, gid_t __group ); extern int chroot(const char *__path); extern int dup2( int __fildes, int __fildes2 ); extern int fchown( int __fildes, uid_t __owner, gid_t __group ); extern int fdatasync( int __fildes ); extern int fsync( int __fildes ); extern pid_t fork( void ); extern long fpathconf( int __fildes, int __name ); extern gid_t getegid( void ); extern uid_t geteuid( void ); extern gid_t getgid( void ); extern int getgroups( int __gidsetsize, gid_t __grouplist[] ); extern char *getlogin( void ); extern pid_t getpgrp( void ); extern pid_t getppid( void ); extern pid_t getsid(pid_t __pid); extern uid_t getuid( void ); extern int link( const char *__path1, const char *__path2 ); extern int mkdir( const char *__path, mode_t __mode ); extern int mknod( const char *__path, mode_t __mode, int __dev ); extern int mount( const char *__special, const char * __dir, int __rwflag ); extern long pathconf( const char *__path, int __name ); extern int pause( void ); extern int pipe( int __fildes[2] ); extern int readlink( const char *__path, char *__buf, size_t __bufsiz ); extern int setegid( gid_t __newegroup ); extern int seteuid( uid_t __newuserid ); extern int setgid( gid_t __newgroup ); extern int setpgid( pid_t __pid, pid_t __pgroupid ); extern int setregid(gid_t real, uid_t effective); extern int setreuid(uid_t real, uid_t effective); extern pid_t setsid( void ); extern int setuid( uid_t __newuserid ); extern int symlink( const char *__pname, const char *__slink ); extern long sysconf( int __name ); extern pid_t tcgetpgrp( int __fildes ); extern int tcsetpgrp( int __fildes, pid_t __pgrp_id ); extern int tcsetct( int __fildes, pid_t pid ); extern char *ttyname( int __fildes ); extern int umount( const char *__special ); #if defined(_QNX_SOURCE) || !defined(NO_EXT_KEYS) /*extensions enabled*/ extern int chsize( int __fildes, long __size ); extern int eof( int __fildes ); extern long filelength( int __fildes ); extern off_t tell( int __fildes ); extern nid_t getnid( void ); extern int lock( int __fildes, long __offset, long __nbytes ); extern void qnx_display_msg( const char *__text ); extern void qnx_display_hex( unsigned __value ); extern char *qnx_fullpath( char * __fullpath, const char * __path ); struct _psinfo2; /* for C++ */ extern int qnx_getids( pid_t pid, struct _psinfo2 *info); extern int qnx_setids( pid_t pid, int id, unsigned subtype ); extern int qnx_sync( nid_t nid ); extern void sync( void ); extern int unlock( int __fildes, long __offset, long __nbytes ); #endif #if defined(_POSIX_SOURCE) || !defined(NO_EXT_KEYS) /*extensions enabled*/ extern int getopt( int __argc, char * const* __argv, const char * __optstring ); extern char *basename( const char * __fname ); extern size_t confstr( int, char*, size_t ); extern int fnmatch( const char *__pattern, const char *__string, int __flag ); extern off_t ltrunc( int __fildes, off_t __offset, int __origin ); extern int putenv(const char * estring); #endif #if defined __386__ #define __far_read read #define __far_write write #else extern ssize_t __far_read(int __fildes,void __far *__buffer,size_t __len); extern ssize_t __far_write(int __fildes,void __far *__buffer,size_t __len); #endif #define _UNISTD_H_INCLUDED #ifdef __cplusplus }; #endif #endif