162 lines
5.5 KiB
C
162 lines
5.5 KiB
C
/*-
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* Copyright (c) 1991, 1993, 1994
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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/*
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* Modified for 2.11BSD by removing prototypes. To save time and space
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* functions not returning 'int' and functions not present in the system
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* are not listed.
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*/
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#ifndef _UNISTD_H_
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#define _UNISTD_H_
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#include <sys/types.h>
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#define STDIN_FILENO 0 /* standard input file descriptor */
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#define STDOUT_FILENO 1 /* standard output file descriptor */
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#define STDERR_FILENO 2 /* standard error file descriptor */
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#ifndef NULL
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#define NULL 0 /* null pointer constant */
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#endif
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/* Values for the second argument to access.
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These may be OR'd together. */
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#define R_OK 4 /* Test for read permission. */
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#define W_OK 2 /* Test for write permission. */
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#define X_OK 1 /* Test for execute permission. */
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#define F_OK 0 /* Test for existence. */
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void _exit (int);
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int access();
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unsigned int alarm();
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pid_t fork();
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gid_t getegid();
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uid_t geteuid();
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gid_t getgid();
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char *getlogin();
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pid_t getpgrp();
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pid_t getpid();
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pid_t getppid();
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uid_t getuid();
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off_t lseek();
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ssize_t read();
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unsigned int sleep();
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char *ttyname();
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ssize_t write (int fd, const void *buf, size_t count);
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int truncate (const char *path, off_t length);
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int ftruncate (int fd, off_t length);
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void *brk (const void *addr);
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int _brk (const void *addr);
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char *crypt();
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void endusershell();
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long gethostid();
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char *getpass();
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char *getusershell();
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char *getwd();
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void psignal();
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extern char *sys_siglist[];
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char *re_comp();
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void *sbrk (int incr);
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int sethostid();
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void setusershell();
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void sync();
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unsigned int ualarm();
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void usleep();
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int pause (void);
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pid_t vfork();
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int pipe (int pipefd[2]);
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int close (int fd);
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int dup (int oldfd);
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int dup2 (int oldfd, int newfd);
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int unlink (const char *pathname);
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int link (const char *oldpath, const char *newpath);
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ssize_t readlink (const char *path, char *buf, size_t bufsiz);
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int chown (const char *path, uid_t owner, gid_t group);
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int nice (int inc);
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int setuid (uid_t uid);
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int setgid (gid_t gid);
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int seteuid (uid_t euid);
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int setegid (gid_t egid);
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int setreuid (uid_t ruid, uid_t euid);
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int setregid (gid_t rgid, gid_t egid);
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int isatty (int fd);
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int chdir (const char *path);
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int fchdir (int fd);
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int chflags (const char *path, u_long flags);
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int fchflags (int fd, u_long flags);
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int getgroups (int size, gid_t list[]);
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int getdtablesize (void);
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int rmdir (const char *pathname);
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struct stat;
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int stat (const char *path, struct stat *buf);
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int fstat (int fd, struct stat *buf);
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int lstat (const char *path, struct stat *buf);
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int execl (const char *path, const char *arg0, ... /* NULL */);
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int execle (const char *path, const char *arg0, ... /* NULL, char *envp[] */);
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int execlp (const char *file, const char *arg0, ... /* NULL */);
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int execv (const char *path, char *const argv[]);
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int execve (const char *path, char *const arg0[], char *const envp[]);
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int execvp (const char *file, char *const argv[]);
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extern char **environ; /* Environment, from crt0. */
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extern const char *__progname; /* Program name, from crt0. */
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int getopt (int argc, char * const argv[], const char *optstring);
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extern char *optarg; /* getopt(3) external variables */
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extern int opterr, optind, optopt;
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#ifndef _VA_LIST_
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#define va_list __builtin_va_list /* For GCC */
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#endif
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void err (int eval, const char *fmt, ...);
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void errx (int eval, const char *fmt, ...);
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void warn (const char *fmt, ...);
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void warnx (const char *fmt, ...);
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void verr (int eval, const char *fmt, va_list ap);
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void verrx (int eval, const char *fmt, va_list ap);
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void vwarn (const char *fmt, va_list ap);
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void vwarnx (const char *fmt, va_list ap);
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#ifndef _VA_LIST_
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#undef va_list
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#endif
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#endif /* !_UNISTD_H_ */
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