| [9] | 1 | /* The <unistd.h> header contains a few miscellaneous manifest constants. */
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| 2 |
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| 3 | #ifndef _UNISTD_H
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| 4 | #define _UNISTD_H
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| 5 |
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| 6 | #ifndef _TYPES_H
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| 7 | #include <sys/types.h>
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| 8 | #endif
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| 9 |
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| 10 | /* Values used by access(). POSIX Table 2-8. */
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| 11 | #define F_OK 0 /* test if file exists */
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| 12 | #define X_OK 1 /* test if file is executable */
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| 13 | #define W_OK 2 /* test if file is writable */
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| 14 | #define R_OK 4 /* test if file is readable */
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| 15 |
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| 16 | /* Values used for whence in lseek(fd, offset, whence). POSIX Table 2-9. */
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| 17 | #define SEEK_SET 0 /* offset is absolute */
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| 18 | #define SEEK_CUR 1 /* offset is relative to current position */
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| 19 | #define SEEK_END 2 /* offset is relative to end of file */
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| 20 |
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| 21 | /* This value is required by POSIX Table 2-10. */
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| 22 | #define _POSIX_VERSION 199009L /* which standard is being conformed to */
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| 23 |
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| 24 | /* These three definitions are required by POSIX Sec. 8.2.1.2. */
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| 25 | #define STDIN_FILENO 0 /* file descriptor for stdin */
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| 26 | #define STDOUT_FILENO 1 /* file descriptor for stdout */
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| 27 | #define STDERR_FILENO 2 /* file descriptor for stderr */
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| 28 |
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| 29 | #ifdef _MINIX
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| 30 | /* How to exit the system or stop a server process. */
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| 31 | #define RBT_HALT 0 /* shutdown and return to monitor */
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| 32 | #define RBT_REBOOT 1 /* reboot the system through the monitor */
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| 33 | #define RBT_PANIC 2 /* a server panics */
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| 34 | #define RBT_MONITOR 3 /* let the monitor do this */
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| 35 | #define RBT_RESET 4 /* hard reset the system */
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| 36 | #define RBT_INVALID 5 /* first invalid reboot flag */
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| 37 |
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| 38 | #define _PM_SEG_FLAG (1L << 30) /* for read() and write() to FS by PM */
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| 39 | #endif
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| 40 |
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| 41 | /* What system info to retrieve with sysgetinfo(). */
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| 42 | #define SI_KINFO 0 /* get kernel info via PM */
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| 43 | #define SI_PROC_ADDR 1 /* address of process table */
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| 44 | #define SI_PROC_TAB 2 /* copy of entire process table */
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| 45 | #define SI_DMAP_TAB 3 /* get device <-> driver mappings */
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| 46 | #define SI_MEM_ALLOC 4 /* get memory allocation data */
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| 47 | #define SI_DATA_STORE 5 /* get copy of data store */
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| 48 | #define SI_LOADINFO 6 /* get copy of load average structure */
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| 49 | #define SI_KPROC_TAB 7 /* copy of kernel process table */
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| 50 |
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| 51 | /* NULL must be defined in <unistd.h> according to POSIX Sec. 2.7.1. */
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| 52 | #define NULL ((void *)0)
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| 53 |
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| 54 | /* The following relate to configurable system variables. POSIX Table 4-2. */
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| 55 | #define _SC_ARG_MAX 1
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| 56 | #define _SC_CHILD_MAX 2
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| 57 | #define _SC_CLOCKS_PER_SEC 3
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| 58 | #define _SC_CLK_TCK 3
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| 59 | #define _SC_NGROUPS_MAX 4
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| 60 | #define _SC_OPEN_MAX 5
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| 61 | #define _SC_JOB_CONTROL 6
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| 62 | #define _SC_SAVED_IDS 7
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| 63 | #define _SC_VERSION 8
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| 64 | #define _SC_STREAM_MAX 9
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| 65 | #define _SC_TZNAME_MAX 10
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| 66 | #define _SC_PAGESIZE 11
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| 67 | #define _SC_PAGE_SIZE _SC_PAGESIZE
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| 68 |
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| 69 | /* The following relate to configurable pathname variables. POSIX Table 5-2. */
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| 70 | #define _PC_LINK_MAX 1 /* link count */
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| 71 | #define _PC_MAX_CANON 2 /* size of the canonical input queue */
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| 72 | #define _PC_MAX_INPUT 3 /* type-ahead buffer size */
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| 73 | #define _PC_NAME_MAX 4 /* file name size */
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| 74 | #define _PC_PATH_MAX 5 /* pathname size */
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| 75 | #define _PC_PIPE_BUF 6 /* pipe size */
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| 76 | #define _PC_NO_TRUNC 7 /* treatment of long name components */
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| 77 | #define _PC_VDISABLE 8 /* tty disable */
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| 78 | #define _PC_CHOWN_RESTRICTED 9 /* chown restricted or not */
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| 79 |
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| 80 | /* POSIX defines several options that may be implemented or not, at the
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| 81 | * implementer's whim. This implementer has made the following choices:
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| 82 | *
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| 83 | * _POSIX_JOB_CONTROL not defined: no job control
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| 84 | * _POSIX_SAVED_IDS not defined: no saved uid/gid
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| 85 | * _POSIX_NO_TRUNC defined as -1: long path names are truncated
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| 86 | * _POSIX_CHOWN_RESTRICTED defined: you can't give away files
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| 87 | * _POSIX_VDISABLE defined: tty functions can be disabled
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| 88 | */
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| 89 | #define _POSIX_NO_TRUNC (-1)
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| 90 | #define _POSIX_CHOWN_RESTRICTED 1
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| 91 |
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| 92 | /* Function Prototypes. */
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| 93 | _PROTOTYPE( void _exit, (int _status) );
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| 94 | _PROTOTYPE( int access, (const char *_path, int _amode) );
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| 95 | _PROTOTYPE( unsigned int alarm, (unsigned int _seconds) );
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| 96 | _PROTOTYPE( int chdir, (const char *_path) );
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| 97 | _PROTOTYPE( int fchdir, (int fd) );
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| 98 | _PROTOTYPE( int chown, (const char *_path, _mnx_Uid_t _owner, _mnx_Gid_t _group) );
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| 99 | _PROTOTYPE( int close, (int _fd) );
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| 100 | _PROTOTYPE( char *ctermid, (char *_s) );
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| 101 | _PROTOTYPE( char *cuserid, (char *_s) );
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| 102 | _PROTOTYPE( int dup, (int _fd) );
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| 103 | _PROTOTYPE( int dup2, (int _fd, int _fd2) );
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| 104 | _PROTOTYPE( int execl, (const char *_path, const char *_arg, ...) );
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| 105 | _PROTOTYPE( int execle, (const char *_path, const char *_arg, ...) );
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| 106 | _PROTOTYPE( int execlp, (const char *_file, const char *arg, ...) );
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| 107 | _PROTOTYPE( int execv, (const char *_path, char *const _argv[]) );
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| 108 | _PROTOTYPE( int execve, (const char *_path, char *const _argv[],
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| 109 | char *const _envp[]) );
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| 110 | _PROTOTYPE( int execvp, (const char *_file, char *const _argv[]) );
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| 111 | _PROTOTYPE( pid_t fork, (void) );
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| 112 | _PROTOTYPE( long fpathconf, (int _fd, int _name) );
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| 113 | _PROTOTYPE( char *getcwd, (char *_buf, size_t _size) );
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| 114 | _PROTOTYPE( gid_t getegid, (void) );
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| 115 | _PROTOTYPE( uid_t geteuid, (void) );
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| 116 | _PROTOTYPE( gid_t getgid, (void) );
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| 117 | _PROTOTYPE( int getgroups, (int _gidsetsize, gid_t _grouplist[]) );
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| 118 | _PROTOTYPE( char *getlogin, (void) );
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| 119 | _PROTOTYPE( pid_t getpgrp, (void) );
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| 120 | _PROTOTYPE( pid_t getpid, (void) );
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| 121 | _PROTOTYPE( pid_t getnpid, (int proc_nr) );
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| 122 | _PROTOTYPE( pid_t getppid, (void) );
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| 123 | _PROTOTYPE( uid_t getuid, (void) );
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| 124 | _PROTOTYPE( int isatty, (int _fd) );
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| 125 | _PROTOTYPE( int link, (const char *_existing, const char *_new) );
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| 126 | _PROTOTYPE( off_t lseek, (int _fd, off_t _offset, int _whence) );
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| 127 | _PROTOTYPE( long pathconf, (const char *_path, int _name) );
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| 128 | _PROTOTYPE( int pause, (void) );
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| 129 | _PROTOTYPE( int pipe, (int _fildes[2]) );
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| 130 | _PROTOTYPE( ssize_t read, (int _fd, void *_buf, size_t _n) );
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| 131 | _PROTOTYPE( int rmdir, (const char *_path) );
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| 132 | _PROTOTYPE( int setgid, (_mnx_Gid_t _gid) );
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| 133 | _PROTOTYPE( int setegid, (_mnx_Gid_t _gid) );
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| 134 | _PROTOTYPE( int setpgid, (pid_t _pid, pid_t _pgid) );
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| 135 | _PROTOTYPE( pid_t setsid, (void) );
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| 136 | _PROTOTYPE( int setuid, (_mnx_Uid_t _uid) );
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| 137 | _PROTOTYPE( int seteuid, (_mnx_Uid_t _uid) );
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| 138 | _PROTOTYPE( unsigned int sleep, (unsigned int _seconds) );
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| 139 | _PROTOTYPE( long sysconf, (int _name) );
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| 140 | _PROTOTYPE( pid_t tcgetpgrp, (int _fd) );
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| 141 | _PROTOTYPE( int tcsetpgrp, (int _fd, pid_t _pgrp_id) );
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| 142 | _PROTOTYPE( char *ttyname, (int _fd) );
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| 143 | _PROTOTYPE( int unlink, (const char *_path) );
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| 144 | _PROTOTYPE( ssize_t write, (int _fd, const void *_buf, size_t _n) );
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| 145 | _PROTOTYPE( int truncate, (const char *_path, off_t _length) );
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| 146 | _PROTOTYPE( int ftruncate, (int _fd, off_t _length) );
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| 147 |
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| 148 | /* Open Group Base Specifications Issue 6 (not complete) */
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| 149 | _PROTOTYPE( int symlink, (const char *path1, const char *path2) );
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| 150 | _PROTOTYPE( int readlink, (const char *, char *, size_t) );
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| 151 | _PROTOTYPE( int getopt, (int _argc, char * const _argv[], char const *_opts) );
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| 152 | extern char *optarg;
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| 153 | extern int optind, opterr, optopt;
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| 154 | _PROTOTYPE( int usleep, (useconds_t _useconds) );
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| 155 |
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| 156 | #ifdef _MINIX
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| 157 | #ifndef _TYPE_H
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| 158 | #include <minix/type.h>
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| 159 | #endif
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| 160 | _PROTOTYPE( int brk, (char *_addr) );
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| 161 | _PROTOTYPE( int chroot, (const char *_name) );
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| 162 | _PROTOTYPE( int mknod, (const char *_name, _mnx_Mode_t _mode, Dev_t _addr) );
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| 163 | _PROTOTYPE( int mknod4, (const char *_name, _mnx_Mode_t _mode, Dev_t _addr,
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| 164 | long _size) );
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| 165 | _PROTOTYPE( char *mktemp, (char *_template) );
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| 166 | _PROTOTYPE( int mount, (char *_spec, char *_name, int _flag) );
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| 167 | _PROTOTYPE( long ptrace, (int _req, pid_t _pid, long _addr, long _data) );
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| 168 | _PROTOTYPE( char *sbrk, (int _incr) );
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| 169 | _PROTOTYPE( int sync, (void) );
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| 170 | _PROTOTYPE( int fsync, (int fd) );
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| 171 | _PROTOTYPE( int umount, (const char *_name) );
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| 172 | _PROTOTYPE( int reboot, (int _how, ...) );
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| 173 | _PROTOTYPE( int gethostname, (char *_hostname, size_t _len) );
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| 174 | _PROTOTYPE( int getdomainname, (char *_domain, size_t _len) );
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| 175 | _PROTOTYPE( int ttyslot, (void) );
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| 176 | _PROTOTYPE( int fttyslot, (int _fd) );
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| 177 | _PROTOTYPE( char *crypt, (const char *_key, const char *_salt) );
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| 178 | _PROTOTYPE( int getsysinfo, (int who, int what, void *where) );
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| 179 | _PROTOTYPE( int getsigset, (sigset_t *sigset) );
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| 180 | _PROTOTYPE( int getprocnr, (void) );
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| 181 | _PROTOTYPE( int getnprocnr, (pid_t pid) );
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| 182 | _PROTOTYPE( int getpprocnr, (void) );
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| 183 | _PROTOTYPE( int _pm_findproc, (char *proc_name, int *proc_nr) );
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| 184 | _PROTOTYPE( int allocmem, (phys_bytes size, phys_bytes *base) );
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| 185 | _PROTOTYPE( int freemem, (phys_bytes size, phys_bytes base) );
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| 186 | #define DEV_MAP 1
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| 187 | #define DEV_UNMAP 2
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| 188 | #define mapdriver(driver, device, style) devctl(DEV_MAP, driver, device, style)
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| 189 | #define unmapdriver(device) devctl(DEV_UNMAP, 0, device, 0)
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| 190 | _PROTOTYPE( int devctl, (int ctl_req, int driver, int device, int style));
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| 191 |
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| 192 | /* For compatibility with other Unix systems */
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| 193 | _PROTOTYPE( int getpagesize, (void) );
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| 194 | _PROTOTYPE( int setgroups, (int ngroups, const gid_t *gidset) );
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| 195 | _PROTOTYPE( int initgroups, (const char *name, gid_t basegid) );
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| 196 |
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| 197 | #endif
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| 198 |
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| 199 | #endif /* _UNISTD_H */
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