370 lines
13 KiB
C
370 lines
13 KiB
C
/*
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* Copyright (C) 2008 The Android Open Source Project
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* 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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* * 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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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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* 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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#pragma once
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#include <stddef.h>
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#include <sys/cdefs.h>
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#include <sys/types.h>
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#include <sys/select.h>
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#include <bits/fcntl.h>
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#include <bits/getentropy.h>
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#include <bits/getopt.h>
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#include <bits/ioctl.h>
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#include <bits/lockf.h>
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#include <bits/posix_limits.h>
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#include <bits/seek_constants.h>
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#include <bits/sysconf.h>
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__BEGIN_DECLS
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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 F_OK 0
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#define X_OK 1
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#define W_OK 2
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#define R_OK 4
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#define _PC_FILESIZEBITS 0
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#define _PC_LINK_MAX 1
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#define _PC_MAX_CANON 2
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#define _PC_MAX_INPUT 3
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#define _PC_NAME_MAX 4
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#define _PC_PATH_MAX 5
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#define _PC_PIPE_BUF 6
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#define _PC_2_SYMLINKS 7
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#define _PC_ALLOC_SIZE_MIN 8
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#define _PC_REC_INCR_XFER_SIZE 9
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#define _PC_REC_MAX_XFER_SIZE 10
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#define _PC_REC_MIN_XFER_SIZE 11
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#define _PC_REC_XFER_ALIGN 12
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#define _PC_SYMLINK_MAX 13
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#define _PC_CHOWN_RESTRICTED 14
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#define _PC_NO_TRUNC 15
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#define _PC_VDISABLE 16
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#define _PC_ASYNC_IO 17
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#define _PC_PRIO_IO 18
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#define _PC_SYNC_IO 19
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extern char* _Nullable * _Nullable environ;
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__noreturn void _exit(int __status);
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pid_t fork(void);
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pid_t vfork(void) __returns_twice;
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pid_t getpid(void);
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pid_t gettid(void) __attribute_const__;
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pid_t getpgid(pid_t __pid);
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int setpgid(pid_t __pid, pid_t __pgid);
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pid_t getppid(void);
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pid_t getpgrp(void);
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int setpgrp(void);
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pid_t getsid(pid_t __pid);
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pid_t setsid(void);
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int execv(const char* _Nonnull __path, char* _Nullable const* _Nullable __argv);
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int execvp(const char* _Nonnull __file, char* _Nullable const* _Nullable __argv);
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int execvpe(const char* _Nonnull __file, char* _Nullable const* _Nullable __argv, char* _Nullable const* _Nullable __envp);
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int execve(const char* _Nonnull __file, char* _Nullable const* _Nullable __argv, char* _Nullable const* _Nullable __envp);
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int execl(const char* _Nonnull __path, const char* _Nullable __arg0, ...) __attribute__((__sentinel__));
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int execlp(const char* _Nonnull __file, const char* _Nullable __arg0, ...) __attribute__((__sentinel__));
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int execle(const char* _Nonnull __path, const char* _Nullable __arg0, ... /*, char* const* __envp */)
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__attribute__((__sentinel__(1)));
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int fexecve(int __fd, char* _Nullable const* _Nullable __argv, char* _Nullable const* _Nullable __envp) __INTRODUCED_IN(28);
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int nice(int __incr);
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/**
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* [setegid(2)](http://man7.org/linux/man-pages/man2/setegid.2.html) sets
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* the effective group ID.
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*
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* On Android, this function only affects the calling thread, not all threads
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* in the process.
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*
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* Returns 0 on success, and returns -1 and sets `errno` on failure.
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*/
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int setegid(gid_t __gid);
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/**
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* [seteuid(2)](http://man7.org/linux/man-pages/man2/seteuid.2.html) sets
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* the effective user ID.
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*
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* On Android, this function only affects the calling thread, not all threads
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* in the process.
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*
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* Returns 0 on success, and returns -1 and sets `errno` on failure.
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*/
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int seteuid(uid_t __uid);
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/**
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* [setgid(2)](http://man7.org/linux/man-pages/man2/setgid.2.html) sets
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* the group ID.
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*
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* On Android, this function only affects the calling thread, not all threads
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* in the process.
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*
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* Returns 0 on success, and returns -1 and sets `errno` on failure.
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*/
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int setgid(gid_t __gid);
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/**
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* [setregid(2)](http://man7.org/linux/man-pages/man2/setregid.2.html) sets
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* the real and effective group IDs (use -1 to leave an ID unchanged).
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*
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* On Android, this function only affects the calling thread, not all threads
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* in the process.
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*
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* Returns 0 on success, and returns -1 and sets `errno` on failure.
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*/
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int setregid(gid_t __rgid, gid_t __egid);
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/**
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* [setresgid(2)](http://man7.org/linux/man-pages/man2/setresgid.2.html) sets
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* the real, effective, and saved group IDs (use -1 to leave an ID unchanged).
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*
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* On Android, this function only affects the calling thread, not all threads
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* in the process.
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*
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* Returns 0 on success, and returns -1 and sets `errno` on failure.
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*/
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int setresgid(gid_t __rgid, gid_t __egid, gid_t __sgid);
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/**
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* [setresuid(2)](http://man7.org/linux/man-pages/man2/setresuid.2.html) sets
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* the real, effective, and saved user IDs (use -1 to leave an ID unchanged).
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*
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* On Android, this function only affects the calling thread, not all threads
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* in the process.
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*
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* Returns 0 on success, and returns -1 and sets `errno` on failure.
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*/
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int setresuid(uid_t __ruid, uid_t __euid, uid_t __suid);
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/**
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* [setreuid(2)](http://man7.org/linux/man-pages/man2/setreuid.2.html) sets
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* the real and effective group IDs (use -1 to leave an ID unchanged).
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*
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* On Android, this function only affects the calling thread, not all threads
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* in the process.
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*
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* Returns 0 on success, and returns -1 and sets `errno` on failure.
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*/
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int setreuid(uid_t __ruid, uid_t __euid);
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/**
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* [setuid(2)](http://man7.org/linux/man-pages/man2/setuid.2.html) sets
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* the user ID.
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*
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* On Android, this function only affects the calling thread, not all threads
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* in the process.
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*
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* Returns 0 on success, and returns -1 and sets `errno` on failure.
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*/
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int setuid(uid_t __uid);
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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 __size, gid_t* _Nullable __list);
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int setgroups(size_t __size, const gid_t* _Nullable __list);
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int getresuid(uid_t* _Nonnull __ruid, uid_t* _Nonnull __euid, uid_t* _Nonnull __suid);
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int getresgid(gid_t* _Nonnull __rgid, gid_t* _Nonnull __egid, gid_t* _Nonnull __sgid);
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char* _Nullable getlogin(void);
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int getlogin_r(char* _Nonnull __buffer, size_t __buffer_size) __INTRODUCED_IN(28);
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long fpathconf(int __fd, int __name);
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long pathconf(const char* _Nonnull __path, int __name);
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int access(const char* _Nonnull __path, int __mode);
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int faccessat(int __dirfd, const char* _Nonnull __path, int __mode, int __flags);
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int link(const char* _Nonnull __old_path, const char* _Nonnull __new_path);
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int linkat(int __old_dir_fd, const char* _Nonnull __old_path, int __new_dir_fd, const char* _Nonnull __new_path, int __flags);
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int unlink(const char* _Nonnull __path);
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int unlinkat(int __dirfd, const char* _Nonnull __path, int __flags);
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int chdir(const char* _Nonnull __path);
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int fchdir(int __fd);
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int rmdir(const char* _Nonnull __path);
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int pipe(int __fds[_Nonnull 2]);
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#if defined(__USE_GNU)
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int pipe2(int __fds[_Nonnull 2], int __flags);
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#endif
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int chroot(const char* _Nonnull __path);
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int symlink(const char* _Nonnull __old_path, const char* _Nonnull __new_path);
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int symlinkat(const char* _Nonnull __old_path, int __new_dir_fd, const char* _Nonnull __new_path);
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ssize_t readlink(const char* _Nonnull __path, char* _Nonnull __buf, size_t __buf_size);
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ssize_t readlinkat(int __dir_fd, const char* _Nonnull __path, char* _Nonnull __buf, size_t __buf_size);
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int chown(const char* _Nonnull __path, uid_t __owner, gid_t __group);
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int fchown(int __fd, uid_t __owner, gid_t __group);
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int fchownat(int __dir_fd, const char* _Nonnull __path, uid_t __owner, gid_t __group, int __flags);
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int lchown(const char* _Nonnull __path, uid_t __owner, gid_t __group);
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char* _Nullable getcwd(char* _Nullable __buf, size_t __size);
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void sync(void);
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#if defined(__USE_GNU)
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int syncfs(int __fd) __INTRODUCED_IN(28);
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#endif
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int close(int __fd);
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/**
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* [read(2)](https://man7.org/linux/man-pages/man2/read.2.html) reads
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* up to `__count` bytes from file descriptor `__fd` into `__buf`.
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*
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* Note: `__buf` is not normally nullable, but may be null in the
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* special case of a zero-length read(), which while not generally
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* useful may be meaningful to some device drivers.
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*
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* Returns the number of bytes read on success, and returns -1 and sets `errno` on failure.
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*/
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ssize_t read(int __fd, void* __BIONIC_COMPLICATED_NULLNESS __buf, size_t __count);
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/**
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* [write(2)](https://man7.org/linux/man-pages/man2/write.2.html) writes
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* up to `__count` bytes to file descriptor `__fd` from `__buf`.
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*
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* Note: `__buf` is not normally nullable, but may be null in the
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* special case of a zero-length write(), which while not generally
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* useful may be meaningful to some device drivers.
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*
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* Returns the number of bytes written on success, and returns -1 and sets `errno` on failure.
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*/
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ssize_t write(int __fd, const void* __BIONIC_COMPLICATED_NULLNESS __buf, size_t __count);
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int dup(int __old_fd);
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int dup2(int __old_fd, int __new_fd);
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int dup3(int __old_fd, int __new_fd, int __flags);
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int fsync(int __fd);
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int fdatasync(int __fd);
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/* See https://android.googlesource.com/platform/bionic/+/main/docs/32-bit-abi.md */
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#if defined(__USE_FILE_OFFSET64)
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int truncate(const char* _Nonnull __path, off_t __length) __RENAME(truncate64);
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off_t lseek(int __fd, off_t __offset, int __whence) __RENAME(lseek64);
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ssize_t pread(int __fd, void* _Nonnull __buf, size_t __count, off_t __offset) __RENAME(pread64);
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ssize_t pwrite(int __fd, const void* _Nonnull __buf, size_t __count, off_t __offset) __RENAME(pwrite64);
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int ftruncate(int __fd, off_t __length) __RENAME(ftruncate64);
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#else
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int truncate(const char* _Nonnull __path, off_t __length);
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off_t lseek(int __fd, off_t __offset, int __whence);
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ssize_t pread(int __fd, void* _Nonnull __buf, size_t __count, off_t __offset);
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ssize_t pwrite(int __fd, const void* _Nonnull __buf, size_t __count, off_t __offset);
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int ftruncate(int __fd, off_t __length);
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#endif
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int truncate64(const char* _Nonnull __path, off64_t __length);
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off64_t lseek64(int __fd, off64_t __offset, int __whence);
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ssize_t pread64(int __fd, void* _Nonnull __buf, size_t __count, off64_t __offset);
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ssize_t pwrite64(int __fd, const void* _Nonnull __buf, size_t __count, off64_t __offset);
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int ftruncate64(int __fd, off64_t __length);
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int pause(void);
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unsigned int alarm(unsigned int __seconds);
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unsigned int sleep(unsigned int __seconds);
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int usleep(useconds_t __microseconds);
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int gethostname(char* _Nonnull _buf, size_t __buf_size);
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int sethostname(const char* _Nonnull __name, size_t __n) __INTRODUCED_IN(23);
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int brk(void* _Nonnull __addr);
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void* _Nullable sbrk(ptrdiff_t __increment);
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int isatty(int __fd);
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char* _Nullable ttyname(int __fd);
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int ttyname_r(int __fd, char* _Nonnull __buf, size_t __buf_size);
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int acct(const char* _Nullable __path);
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int getpagesize(void) __attribute_const__;
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long syscall(long __number, ...);
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int daemon(int __no_chdir, int __no_close);
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#if defined(__arm__)
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int cacheflush(long __addr, long __nbytes, long __cache);
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/* __attribute__((deprecated("use __builtin___clear_cache instead"))); */
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#endif
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pid_t tcgetpgrp(int __fd);
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int tcsetpgrp(int __fd, pid_t __pid);
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/* Used to retry syscalls that can return EINTR. */
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#define TEMP_FAILURE_RETRY(exp) ({ \
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__typeof__(exp) _rc; \
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do { \
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_rc = (exp); \
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} while (_rc == -1 && errno == EINTR); \
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_rc; })
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int getdomainname(char* _Nonnull __buf, size_t __buf_size) __INTRODUCED_IN(26);
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int setdomainname(const char* _Nonnull __name, size_t __n) __INTRODUCED_IN(26);
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/**
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* [copy_file_range(2)](https://man7.org/linux/man-pages/man2/copy_file_range.2.html) copies
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* a range of data from one file descriptor to another.
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*
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* Available since API level 34.
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*
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* Returns the number of bytes copied on success, and returns -1 and sets
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* `errno` on failure.
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*/
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ssize_t copy_file_range(int __fd_in, off64_t* _Nullable __off_in, int __fd_out, off64_t* _Nullable __off_out, size_t __length, unsigned int __flags) __INTRODUCED_IN(34);
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#if __ANDROID_API__ >= 28
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void swab(const void* _Nonnull __src, void* _Nonnull __dst, ssize_t __byte_count) __INTRODUCED_IN(28);
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#endif
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/**
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* [close_range(2)](https://man7.org/linux/man-pages/man2/close_range.2.html)
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* performs an action (which depends on value of flags) on an inclusive range
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* of file descriptors.
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*
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* Available since API level 34.
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*
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* Note: there is no emulation on too old kernels, hence this will fail with
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* -1/ENOSYS on pre-5.9 kernels, -1/EINVAL for unsupported flags. In particular
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* CLOSE_RANGE_CLOEXEC requires 5.11, though support was backported to Android
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* Common Kernel 5.10-T.
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*
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* Returns 0 on success, and returns -1 and sets `errno` on failure.
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*/
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int close_range(unsigned int __min_fd, unsigned int __max_fd, int __flags) __INTRODUCED_IN(34);
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#if defined(__BIONIC_INCLUDE_FORTIFY_HEADERS)
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#define _UNISTD_H_
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#include <bits/fortify/unistd.h>
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#undef _UNISTD_H_
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#endif
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__END_DECLS
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#include <android/legacy_unistd_inlines.h>
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