123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130 |
- /* The <unistd.h> header contains a few miscellaneous manifest constants. */
- #ifndef _UNISTD_H
- #define _UNISTD_H
- /* Values used by access(). POSIX Table 2-6. */
- #define F_OK 0 /* test if file exists */
- #define X_OK 1 /* test if file is executable */
- #define W_OK 2 /* test if file is writable */
- #define R_OK 4 /* test if file is readable */
- /* Values used for whence in lseek(fd, offset, whence). POSIX Table 2-7. */
- #define SEEK_SET 0 /* offset is absolute */
- #define SEEK_CUR 1 /* offset is relative to current position */
- #define SEEK_END 2 /* offset is relative to end of file */
- /* This value is required by POSIX Table 2-8. */
- #define _POSIX_VERSION 198808L /* which standard is being conformed to */
- /* These three definitions are required by POSIX Sec. 8.2.1.2. */
- #define STDIN_FILENO 0 /* file descriptor for stdin */
- #define STDOUT_FILENO 1 /* file descriptor for stdout */
- #define STDERR_FILENO 2 /* file descriptor for stderr */
- /* NULL must be defined in <unistd.h> according to POSIX Sec. 2.8.1. */
- #define NULL ((void *)0)
- /* The following relate to configurable system variables. POSIX Table 4-2. */
- #define _SC_ARG_MAX 1
- #define _SC_CHILD_MAX 2
- #define _SC_CLOCKS_PER_SEC 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
- /* The following relate to configurable pathname variables. POSIX Table 5-2. */
- #define _PC_LINK_MAX 1 /* link count */
- #define _PC_MAX_CANON 2 /* size of the canonical input queue */
- #define _PC_MAX_INPUT 3 /* type-ahead buffer size */
- #define _PC_NAME_MAX 4 /* file name size */
- #define _PC_PATH_MAX 5 /* pathname size */
- #define _PC_PIPE_BUF 6 /* pipe size */
- #define _PC_NO_TRUNC 7 /* treatment of long name components */
- #define _PC_VDISABLE 8 /* tty disable */
- #define _PC_CHOWN_RESTRICTED 9 /* chown restricted or not */
- /* POSIX defines several options that may be implemented or not, at the
- * implementer's whim. This implementer has made the following choices:
- *
- * _POSIX_JOB_CONTROL not defined: no job control
- * _POSIX_SAVED_IDS not defined: no saved uid/gid
- * _POSIX_NO_TRUNC not defined: long path names are truncated
- * _POSIX_CHOWN_RESTRICTED defined: you can't give away files
- * _POSIX_VDISABLE defined: tty functions can be disabled
- */
- #define _POSIX_CHOWN_RESTRICTED
- #define _POSIX_VDISABLE '\t' /* can't set any control char to tab */
- /* Function Prototypes. */
- #ifndef _ANSI_H
- #include <ansi.h>
- #endif
- _PROTOTYPE( void _exit, (int _status) );
- _PROTOTYPE( int access, (char *_path, int _amode) );
- _PROTOTYPE( int chdir, (char *_path) );
- _PROTOTYPE( int chown, (char *_path, int _owner, int _group) );
- _PROTOTYPE( int close, (int _fd) );
- _PROTOTYPE( char *ctermid, (char *_s) );
- _PROTOTYPE( char *cuserid, (char *_s) );
- _PROTOTYPE( int dup, (int _fd) );
- _PROTOTYPE( int dup2, (int _fd, int _fd2) );
- _PROTOTYPE( int execl, (char *_path, ...) );
- _PROTOTYPE( int execle, (char *_path, ...) );
- _PROTOTYPE( int execlp, (char *_file, ...) );
- _PROTOTYPE( int execv, (char *_path, char *_argv[]) );
- _PROTOTYPE( int execve, (char *_path, char *_argv[], char *_envp[]) );
- _PROTOTYPE( int execvp, (char *_file, char *_argv[]) );
- _PROTOTYPE( pid_t fork, (void) );
- _PROTOTYPE( long fpathconf, (int _fd, int _name) );
- _PROTOTYPE( char *getcwd, (char *_buf, int _size) );
- _PROTOTYPE( gid_t getegid, (void) );
- _PROTOTYPE( uid_t geteuid, (void) );
- _PROTOTYPE( gid_t getgid, (void) );
- _PROTOTYPE( int getgroups, (int _gidsetsize, gid_t _grouplist[]) );
- _PROTOTYPE( char *getlogin, (void) );
- _PROTOTYPE( pid_t getpgrp, (void) );
- _PROTOTYPE( pid_t getpid, (void) );
- _PROTOTYPE( pid_t getppid, (void) );
- _PROTOTYPE( uid_t getuid, (void) );
- _PROTOTYPE( unsigned int alarm, (unsigned int _seconds) );
- _PROTOTYPE( unsigned int sleep, (unsigned int _seconds) );
- _PROTOTYPE( int isatty, (int _fd) );
- _PROTOTYPE( int link, (const char *_path1, const char *_path2) );
- _PROTOTYPE( off_t lseek, (int _fd, off_t _offset, int _whence) );
- _PROTOTYPE( long pathconf, (char *_path, int _name) );
- _PROTOTYPE( int pause, (void) );
- _PROTOTYPE( int pipe, (int _fildes[2]) );
- _PROTOTYPE( int read, (int _fd, char *_buf, unsigned int _n) );
- _PROTOTYPE( int rmdir, (const char *_path) );
- _PROTOTYPE( int setgid, (int _gid) );
- _PROTOTYPE( int setpgid, (pid_t _pid, pid_t _pgid) );
- _PROTOTYPE( pid_t setsid, (void) );
- _PROTOTYPE( int setuid, (int _uid) );
- _PROTOTYPE( long sysconf, (int _name) );
- _PROTOTYPE( pid_t tcgetpgrp, (int _fd) );
- _PROTOTYPE( int tcsetpgrp, (int _fd, pid_t _pgrp_id) );
- _PROTOTYPE( char *ttyname, (int _fd) );
- _PROTOTYPE( int unlink, (const char *_path) );
- _PROTOTYPE( int write, (int _fd, char *_buf, unsigned int _n) );
- #ifdef _MINIX
- _PROTOTYPE( char *brk, (char *_addr) );
- _PROTOTYPE( int mknod, (const char *_name, int _mode, int _addr) );
- _PROTOTYPE( int mknod4, (const char *_name, int _mode, int _addr,
- unsigned _size) );
- _PROTOTYPE( char *mktemp, (char *_template) );
- _PROTOTYPE( char *sbrk, (int _incr) );
- _PROTOTYPE( int chroot, (const char *_name) );
- _PROTOTYPE( int mount, (char *_spec, char *_name, int _flag));
- _PROTOTYPE( long ptrace, (int _req, int _pid, long _addr, long _data) );
- _PROTOTYPE( int stime, (long *top) );
- _PROTOTYPE( int sync, (void) );
- _PROTOTYPE( int umount, (const char *_name) );
- #endif
- #endif /* _UNISTD_H */
|