mirror of
git://git.musl-libc.org/musl
synced 2024-12-22 06:40:57 +00:00
11894f6d3a
being nonstandard, the closest thing to a specification for this function is its man page, which documents it as returning int. it can fail with EBADF if the file descriptor passed is invalid.
466 lines
13 KiB
C
466 lines
13 KiB
C
#ifndef _UNISTD_H
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#define _UNISTD_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <features.h>
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#define STDIN_FILENO 0
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#define STDOUT_FILENO 1
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#define STDERR_FILENO 2
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#define SEEK_SET 0
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#define SEEK_CUR 1
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#define SEEK_END 2
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#ifdef __cplusplus
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#define NULL 0L
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#else
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#define NULL ((void*)0)
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#endif
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#define __NEED_size_t
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#define __NEED_ssize_t
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#define __NEED_uid_t
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#define __NEED_gid_t
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#define __NEED_off_t
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#define __NEED_pid_t
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#define __NEED_intptr_t
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#define __NEED_useconds_t
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#include <bits/alltypes.h>
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int pipe(int [2]);
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int pipe2(int [2], int);
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int close(int);
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int posix_close(int, int);
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int dup(int);
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int dup2(int, int);
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int dup3(int, int, int);
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off_t lseek(int, off_t, int);
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int fsync(int);
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int fdatasync(int);
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ssize_t read(int, void *, size_t);
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ssize_t write(int, const void *, size_t);
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ssize_t pread(int, void *, size_t, off_t);
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ssize_t pwrite(int, const void *, size_t, off_t);
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int chown(const char *, uid_t, gid_t);
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int fchown(int, uid_t, gid_t);
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int lchown(const char *, uid_t, gid_t);
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int fchownat(int, const char *, uid_t, gid_t, int);
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int link(const char *, const char *);
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int linkat(int, const char *, int, const char *, int);
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int symlink(const char *, const char *);
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int symlinkat(const char *, int, const char *);
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ssize_t readlink(const char *__restrict, char *__restrict, size_t);
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ssize_t readlinkat(int, const char *__restrict, char *__restrict, size_t);
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int unlink(const char *);
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int unlinkat(int, const char *, int);
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int rmdir(const char *);
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int truncate(const char *, off_t);
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int ftruncate(int, off_t);
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#define F_OK 0
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#define R_OK 4
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#define W_OK 2
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#define X_OK 1
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int access(const char *, int);
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int faccessat(int, const char *, int, int);
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int chdir(const char *);
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int fchdir(int);
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char *getcwd(char *, size_t);
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unsigned alarm(unsigned);
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unsigned sleep(unsigned);
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int pause(void);
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pid_t fork(void);
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int execve(const char *, char *const [], char *const []);
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int execv(const char *, char *const []);
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int execle(const char *, const char *, ...);
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int execl(const char *, const char *, ...);
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int execvp(const char *, char *const []);
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int execlp(const char *, const char *, ...);
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int fexecve(int, char *const [], char *const []);
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_Noreturn void _exit(int);
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pid_t getpid(void);
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pid_t getppid(void);
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pid_t getpgrp(void);
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pid_t getpgid(pid_t);
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int setpgid(pid_t, pid_t);
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pid_t setsid(void);
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pid_t getsid(pid_t);
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char *ttyname(int);
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int ttyname_r(int, char *, size_t);
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int isatty(int);
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pid_t tcgetpgrp(int);
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int tcsetpgrp(int, pid_t);
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uid_t getuid(void);
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uid_t geteuid(void);
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gid_t getgid(void);
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gid_t getegid(void);
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int getgroups(int, gid_t []);
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int setuid(uid_t);
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int setreuid(uid_t, uid_t);
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int seteuid(uid_t);
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int setgid(gid_t);
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int setregid(gid_t, gid_t);
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int setegid(gid_t);
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char *getlogin(void);
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int getlogin_r(char *, size_t);
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int gethostname(char *, size_t);
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char *ctermid(char *);
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int getopt(int, char * const [], const char *);
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extern char *optarg;
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extern int optind, opterr, optopt;
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long pathconf(const char *, int);
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long fpathconf(int, int);
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long sysconf(int);
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size_t confstr(int, char *, size_t);
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#define F_ULOCK 0
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#define F_LOCK 1
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#define F_TLOCK 2
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#define F_TEST 3
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#if defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
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int lockf(int, int, off_t);
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long gethostid(void);
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int nice(int);
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void sync(void);
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pid_t setpgrp(void);
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char *crypt(const char *, const char *);
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void encrypt(char *, int);
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void swab(const void *__restrict, void *__restrict, ssize_t);
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#endif
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#if defined(_GNU_SOURCE) || defined(_BSD_SOURCE) \
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|| (defined(_XOPEN_SOURCE) && _XOPEN_SOURCE+0 < 700)
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int usleep(unsigned);
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unsigned ualarm(unsigned, unsigned);
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#endif
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#if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
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#define L_SET 0
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#define L_INCR 1
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#define L_XTND 2
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int brk(void *);
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void *sbrk(intptr_t);
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pid_t vfork(void);
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int vhangup(void);
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int chroot(const char *);
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int getpagesize(void);
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int getdtablesize(void);
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int sethostname(const char *, size_t);
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int getdomainname(char *, size_t);
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int setdomainname(const char *, size_t);
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int setgroups(size_t, const gid_t *);
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char *getpass(const char *);
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int daemon(int, int);
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void setusershell(void);
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void endusershell(void);
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char *getusershell(void);
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int acct(const char *);
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long syscall(long, ...);
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int execvpe(const char *, char *const [], char *const []);
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int issetugid(void);
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#endif
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#ifdef _GNU_SOURCE
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extern char **environ;
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int setresuid(uid_t, uid_t, uid_t);
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int setresgid(gid_t, gid_t, gid_t);
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int getresuid(uid_t *, uid_t *, uid_t *);
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int getresgid(gid_t *, gid_t *, gid_t *);
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char *get_current_dir_name(void);
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int syncfs(int);
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int euidaccess(const char *, int);
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int eaccess(const char *, int);
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#endif
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#if defined(_LARGEFILE64_SOURCE) || defined(_GNU_SOURCE)
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#define lseek64 lseek
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#define pread64 pread
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#define pwrite64 pwrite
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#define truncate64 truncate
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#define ftruncate64 ftruncate
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#define lockf64 lockf
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#define off64_t off_t
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#endif
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#define POSIX_CLOSE_RESTART 0
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#define _XOPEN_VERSION 700
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#define _XOPEN_UNIX 1
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#define _XOPEN_ENH_I18N 1
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#define _POSIX_VERSION 200809L
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#define _POSIX2_VERSION _POSIX_VERSION
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#define _POSIX_ADVISORY_INFO _POSIX_VERSION
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#define _POSIX_CHOWN_RESTRICTED 1
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#define _POSIX_IPV6 _POSIX_VERSION
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#define _POSIX_JOB_CONTROL 1
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#define _POSIX_MAPPED_FILES _POSIX_VERSION
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#define _POSIX_MEMLOCK _POSIX_VERSION
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#define _POSIX_MEMLOCK_RANGE _POSIX_VERSION
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#define _POSIX_MEMORY_PROTECTION _POSIX_VERSION
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#define _POSIX_MESSAGE_PASSING _POSIX_VERSION
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#define _POSIX_FSYNC _POSIX_VERSION
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#define _POSIX_NO_TRUNC 1
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#define _POSIX_RAW_SOCKETS _POSIX_VERSION
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#define _POSIX_REALTIME_SIGNALS _POSIX_VERSION
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#define _POSIX_REGEXP 1
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#define _POSIX_SAVED_IDS 1
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#define _POSIX_SHELL 1
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#define _POSIX_SPAWN _POSIX_VERSION
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#define _POSIX_VDISABLE 0
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#define _POSIX_THREADS _POSIX_VERSION
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#define _POSIX_THREAD_PROCESS_SHARED _POSIX_VERSION
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#define _POSIX_THREAD_SAFE_FUNCTIONS _POSIX_VERSION
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#define _POSIX_THREAD_ATTR_STACKADDR _POSIX_VERSION
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#define _POSIX_THREAD_ATTR_STACKSIZE _POSIX_VERSION
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#define _POSIX_THREAD_PRIORITY_SCHEDULING _POSIX_VERSION
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#define _POSIX_THREAD_CPUTIME _POSIX_VERSION
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#define _POSIX_TIMERS _POSIX_VERSION
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#define _POSIX_TIMEOUTS _POSIX_VERSION
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#define _POSIX_MONOTONIC_CLOCK _POSIX_VERSION
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#define _POSIX_CPUTIME _POSIX_VERSION
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#define _POSIX_CLOCK_SELECTION _POSIX_VERSION
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#define _POSIX_BARRIERS _POSIX_VERSION
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#define _POSIX_SPIN_LOCKS _POSIX_VERSION
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#define _POSIX_READER_WRITER_LOCKS _POSIX_VERSION
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#define _POSIX_ASYNCHRONOUS_IO _POSIX_VERSION
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#define _POSIX_SEMAPHORES _POSIX_VERSION
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#define _POSIX_SHARED_MEMORY_OBJECTS _POSIX_VERSION
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#define _POSIX2_C_BIND _POSIX_VERSION
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#include <bits/posix.h>
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#define _PC_LINK_MAX 0
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#define _PC_MAX_CANON 1
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#define _PC_MAX_INPUT 2
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#define _PC_NAME_MAX 3
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#define _PC_PATH_MAX 4
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#define _PC_PIPE_BUF 5
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#define _PC_CHOWN_RESTRICTED 6
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#define _PC_NO_TRUNC 7
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#define _PC_VDISABLE 8
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#define _PC_SYNC_IO 9
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#define _PC_ASYNC_IO 10
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#define _PC_PRIO_IO 11
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#define _PC_SOCK_MAXBUF 12
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#define _PC_FILESIZEBITS 13
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#define _PC_REC_INCR_XFER_SIZE 14
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#define _PC_REC_MAX_XFER_SIZE 15
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#define _PC_REC_MIN_XFER_SIZE 16
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#define _PC_REC_XFER_ALIGN 17
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#define _PC_ALLOC_SIZE_MIN 18
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#define _PC_SYMLINK_MAX 19
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#define _PC_2_SYMLINKS 20
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#define _SC_ARG_MAX 0
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#define _SC_CHILD_MAX 1
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#define _SC_CLK_TCK 2
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#define _SC_NGROUPS_MAX 3
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#define _SC_OPEN_MAX 4
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#define _SC_STREAM_MAX 5
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#define _SC_TZNAME_MAX 6
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#define _SC_JOB_CONTROL 7
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#define _SC_SAVED_IDS 8
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#define _SC_REALTIME_SIGNALS 9
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#define _SC_PRIORITY_SCHEDULING 10
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#define _SC_TIMERS 11
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#define _SC_ASYNCHRONOUS_IO 12
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#define _SC_PRIORITIZED_IO 13
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#define _SC_SYNCHRONIZED_IO 14
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#define _SC_FSYNC 15
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#define _SC_MAPPED_FILES 16
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#define _SC_MEMLOCK 17
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#define _SC_MEMLOCK_RANGE 18
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#define _SC_MEMORY_PROTECTION 19
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#define _SC_MESSAGE_PASSING 20
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#define _SC_SEMAPHORES 21
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#define _SC_SHARED_MEMORY_OBJECTS 22
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#define _SC_AIO_LISTIO_MAX 23
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#define _SC_AIO_MAX 24
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#define _SC_AIO_PRIO_DELTA_MAX 25
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#define _SC_DELAYTIMER_MAX 26
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#define _SC_MQ_OPEN_MAX 27
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#define _SC_MQ_PRIO_MAX 28
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#define _SC_VERSION 29
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#define _SC_PAGE_SIZE 30
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#define _SC_PAGESIZE 30 /* !! */
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#define _SC_RTSIG_MAX 31
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#define _SC_SEM_NSEMS_MAX 32
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#define _SC_SEM_VALUE_MAX 33
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#define _SC_SIGQUEUE_MAX 34
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#define _SC_TIMER_MAX 35
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#define _SC_BC_BASE_MAX 36
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#define _SC_BC_DIM_MAX 37
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#define _SC_BC_SCALE_MAX 38
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#define _SC_BC_STRING_MAX 39
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#define _SC_COLL_WEIGHTS_MAX 40
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#define _SC_EXPR_NEST_MAX 42
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#define _SC_LINE_MAX 43
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#define _SC_RE_DUP_MAX 44
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#define _SC_2_VERSION 46
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#define _SC_2_C_BIND 47
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#define _SC_2_C_DEV 48
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#define _SC_2_FORT_DEV 49
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#define _SC_2_FORT_RUN 50
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#define _SC_2_SW_DEV 51
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#define _SC_2_LOCALEDEF 52
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#define _SC_UIO_MAXIOV 60 /* !! */
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#define _SC_IOV_MAX 60
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#define _SC_THREADS 67
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#define _SC_THREAD_SAFE_FUNCTIONS 68
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#define _SC_GETGR_R_SIZE_MAX 69
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#define _SC_GETPW_R_SIZE_MAX 70
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#define _SC_LOGIN_NAME_MAX 71
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#define _SC_TTY_NAME_MAX 72
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#define _SC_THREAD_DESTRUCTOR_ITERATIONS 73
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#define _SC_THREAD_KEYS_MAX 74
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#define _SC_THREAD_STACK_MIN 75
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#define _SC_THREAD_THREADS_MAX 76
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#define _SC_THREAD_ATTR_STACKADDR 77
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#define _SC_THREAD_ATTR_STACKSIZE 78
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#define _SC_THREAD_PRIORITY_SCHEDULING 79
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#define _SC_THREAD_PRIO_INHERIT 80
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#define _SC_THREAD_PRIO_PROTECT 81
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#define _SC_THREAD_PROCESS_SHARED 82
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#define _SC_NPROCESSORS_CONF 83
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#define _SC_NPROCESSORS_ONLN 84
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#define _SC_PHYS_PAGES 85
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#define _SC_AVPHYS_PAGES 86
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#define _SC_ATEXIT_MAX 87
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#define _SC_PASS_MAX 88
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#define _SC_XOPEN_VERSION 89
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#define _SC_XOPEN_XCU_VERSION 90
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#define _SC_XOPEN_UNIX 91
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#define _SC_XOPEN_CRYPT 92
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#define _SC_XOPEN_ENH_I18N 93
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#define _SC_XOPEN_SHM 94
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#define _SC_2_CHAR_TERM 95
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#define _SC_2_UPE 97
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#define _SC_XOPEN_XPG2 98
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#define _SC_XOPEN_XPG3 99
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#define _SC_XOPEN_XPG4 100
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#define _SC_NZERO 109
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#define _SC_XBS5_ILP32_OFF32 125
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#define _SC_XBS5_ILP32_OFFBIG 126
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#define _SC_XBS5_LP64_OFF64 127
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#define _SC_XBS5_LPBIG_OFFBIG 128
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#define _SC_XOPEN_LEGACY 129
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#define _SC_XOPEN_REALTIME 130
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#define _SC_XOPEN_REALTIME_THREADS 131
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#define _SC_ADVISORY_INFO 132
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#define _SC_BARRIERS 133
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#define _SC_CLOCK_SELECTION 137
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#define _SC_CPUTIME 138
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#define _SC_THREAD_CPUTIME 139
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#define _SC_MONOTONIC_CLOCK 149
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#define _SC_READER_WRITER_LOCKS 153
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#define _SC_SPIN_LOCKS 154
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#define _SC_REGEXP 155
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#define _SC_SHELL 157
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#define _SC_SPAWN 159
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#define _SC_SPORADIC_SERVER 160
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#define _SC_THREAD_SPORADIC_SERVER 161
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#define _SC_TIMEOUTS 164
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#define _SC_TYPED_MEMORY_OBJECTS 165
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#define _SC_2_PBS 168
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#define _SC_2_PBS_ACCOUNTING 169
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#define _SC_2_PBS_LOCATE 170
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#define _SC_2_PBS_MESSAGE 171
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#define _SC_2_PBS_TRACK 172
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#define _SC_SYMLOOP_MAX 173
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#define _SC_STREAMS 174
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#define _SC_2_PBS_CHECKPOINT 175
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#define _SC_V6_ILP32_OFF32 176
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#define _SC_V6_ILP32_OFFBIG 177
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#define _SC_V6_LP64_OFF64 178
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#define _SC_V6_LPBIG_OFFBIG 179
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#define _SC_HOST_NAME_MAX 180
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#define _SC_TRACE 181
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#define _SC_TRACE_EVENT_FILTER 182
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#define _SC_TRACE_INHERIT 183
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#define _SC_TRACE_LOG 184
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#define _SC_IPV6 235
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#define _SC_RAW_SOCKETS 236
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#define _SC_V7_ILP32_OFF32 237
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#define _SC_V7_ILP32_OFFBIG 238
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#define _SC_V7_LP64_OFF64 239
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#define _SC_V7_LPBIG_OFFBIG 240
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#define _SC_SS_REPL_MAX 241
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#define _SC_TRACE_EVENT_NAME_MAX 242
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#define _SC_TRACE_NAME_MAX 243
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#define _SC_TRACE_SYS_MAX 244
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#define _SC_TRACE_USER_EVENT_MAX 245
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#define _SC_XOPEN_STREAMS 246
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#define _SC_THREAD_ROBUST_PRIO_INHERIT 247
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#define _SC_THREAD_ROBUST_PRIO_PROTECT 248
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#define _CS_PATH 0
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#define _CS_POSIX_V6_WIDTH_RESTRICTED_ENVS 1
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#define _CS_GNU_LIBC_VERSION 2
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#define _CS_GNU_LIBPTHREAD_VERSION 3
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#define _CS_POSIX_V5_WIDTH_RESTRICTED_ENVS 4
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#define _CS_POSIX_V7_WIDTH_RESTRICTED_ENVS 5
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#define _CS_POSIX_V6_ILP32_OFF32_CFLAGS 1116
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#define _CS_POSIX_V6_ILP32_OFF32_LDFLAGS 1117
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#define _CS_POSIX_V6_ILP32_OFF32_LIBS 1118
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#define _CS_POSIX_V6_ILP32_OFF32_LINTFLAGS 1119
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#define _CS_POSIX_V6_ILP32_OFFBIG_CFLAGS 1120
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#define _CS_POSIX_V6_ILP32_OFFBIG_LDFLAGS 1121
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#define _CS_POSIX_V6_ILP32_OFFBIG_LIBS 1122
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#define _CS_POSIX_V6_ILP32_OFFBIG_LINTFLAGS 1123
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#define _CS_POSIX_V6_LP64_OFF64_CFLAGS 1124
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#define _CS_POSIX_V6_LP64_OFF64_LDFLAGS 1125
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#define _CS_POSIX_V6_LP64_OFF64_LIBS 1126
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#define _CS_POSIX_V6_LP64_OFF64_LINTFLAGS 1127
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#define _CS_POSIX_V6_LPBIG_OFFBIG_CFLAGS 1128
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#define _CS_POSIX_V6_LPBIG_OFFBIG_LDFLAGS 1129
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#define _CS_POSIX_V6_LPBIG_OFFBIG_LIBS 1130
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#define _CS_POSIX_V6_LPBIG_OFFBIG_LINTFLAGS 1131
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#define _CS_POSIX_V7_ILP32_OFF32_CFLAGS 1132
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#define _CS_POSIX_V7_ILP32_OFF32_LDFLAGS 1133
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#define _CS_POSIX_V7_ILP32_OFF32_LIBS 1134
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#define _CS_POSIX_V7_ILP32_OFF32_LINTFLAGS 1135
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#define _CS_POSIX_V7_ILP32_OFFBIG_CFLAGS 1136
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#define _CS_POSIX_V7_ILP32_OFFBIG_LDFLAGS 1137
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#define _CS_POSIX_V7_ILP32_OFFBIG_LIBS 1138
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#define _CS_POSIX_V7_ILP32_OFFBIG_LINTFLAGS 1139
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#define _CS_POSIX_V7_LP64_OFF64_CFLAGS 1140
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#define _CS_POSIX_V7_LP64_OFF64_LDFLAGS 1141
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#define _CS_POSIX_V7_LP64_OFF64_LIBS 1142
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#define _CS_POSIX_V7_LP64_OFF64_LINTFLAGS 1143
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#define _CS_POSIX_V7_LPBIG_OFFBIG_CFLAGS 1144
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#define _CS_POSIX_V7_LPBIG_OFFBIG_LDFLAGS 1145
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#define _CS_POSIX_V7_LPBIG_OFFBIG_LIBS 1146
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#define _CS_POSIX_V7_LPBIG_OFFBIG_LINTFLAGS 1147
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#ifdef __cplusplus
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}
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#endif
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#endif
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