111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert/* 211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * Copyright (C) 2008 The Android Open Source Project 311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * All rights reserved. 411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * 511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * Redistribution and use in source and binary forms, with or without 611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * modification, are permitted provided that the following conditions 711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * are met: 811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * * Redistributions of source code must retain the above copyright 911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * notice, this list of conditions and the following disclaimer. 1011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * * Redistributions in binary form must reproduce the above copyright 1111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * notice, this list of conditions and the following disclaimer in 1211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * the documentation and/or other materials provided with the 1311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * distribution. 1411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * 1511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 1611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 1711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 1811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 1911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 2011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 2111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS 2211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 2311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 2411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 2511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 2611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * SUCH DAMAGE. 2711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert */ 2811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#ifndef _UNISTD_H_ 2911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define _UNISTD_H_ 3011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 3111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#include <stddef.h> 3211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#include <sys/cdefs.h> 3311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#include <sys/types.h> 3411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#include <sys/select.h> 3511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#include <sys/sysconf.h> 3611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#include <linux/capability.h> 3711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#include <pathconf.h> 3811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 3911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert__BEGIN_DECLS 4011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 4111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert/* Standard file descriptor numbers. */ 4211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define STDIN_FILENO 0 4311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define STDOUT_FILENO 1 4411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define STDERR_FILENO 2 4511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 4611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert/* Values for whence in fseek and lseek */ 4711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define SEEK_SET 0 4811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define SEEK_CUR 1 4911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define SEEK_END 2 5011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 5111cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern char **environ; 5211cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern __noreturn void _exit(int); 5311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 5411cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern pid_t fork(void); 5511cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern pid_t vfork(void); 5611cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern pid_t getpid(void); 5711cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern pid_t gettid(void); 5811cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern pid_t getpgid(pid_t); 5911cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern int setpgid(pid_t, pid_t); 6011cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern pid_t getppid(void); 6111cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern pid_t getpgrp(void); 6211cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern int setpgrp(void); 6311cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern pid_t setsid(void); 6411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 6511cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern int execv(const char *, char * const *); 6611cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern int execvp(const char *, char * const *); 6711cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern int execve(const char *, char * const *, char * const *); 6811cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern int execl(const char *, const char *, ...); 6911cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern int execlp(const char *, const char *, ...); 7011cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern int execle(const char *, const char *, ...); 7111cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern int capget(cap_user_header_t hdrp, cap_user_data_t datap); 7211cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern int capset(cap_user_header_t hdrp, const cap_user_data_t datap); 7311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 7411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert/* IMPORTANT: See comment under <sys/prctl.h> about this declaration */ 7511cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern int prctl(int option, ...); 7611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 7711cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern int nice(int); 7811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 7911cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern int setuid(uid_t); 8011cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern uid_t getuid(void); 8111cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern int seteuid(uid_t); 8211cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern uid_t geteuid(void); 8311cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern int setgid(gid_t); 8411cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern gid_t getgid(void); 8511cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern int setegid(gid_t); 8611cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern gid_t getegid(void); 8711cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern int getgroups(int, gid_t *); 8811cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern int setgroups(size_t, const gid_t *); 8911cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern int setreuid(uid_t, uid_t); 9011cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern int setregid(gid_t, gid_t); 9111cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern int setresuid(uid_t, uid_t, uid_t); 9211cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern int setresgid(gid_t, gid_t, gid_t); 9311cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern int getresuid(uid_t *ruid, uid_t *euid, uid_t *suid); 9411cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern int getresgid(gid_t *rgid, gid_t *egid, gid_t *sgid); 9511cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern int issetugid(void); 9611cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern char* getlogin(void); 9711cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern char* getusershell(void); 9811cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern void setusershell(void); 9911cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern void endusershell(void); 10011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 10111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 10211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 10311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert/* Macros for access() */ 10411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define R_OK 4 /* Read */ 10511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define W_OK 2 /* Write */ 10611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define X_OK 1 /* Execute */ 10711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define F_OK 0 /* Existence */ 10811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 10911cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern int access(const char *, int); 11011cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern int link(const char *, const char *); 11111cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern int unlink(const char *); 11211cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern int chdir(const char *); 11311cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern int fchdir(int); 11411cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern int rmdir(const char *); 11511cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern int pipe(int *); 11611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#ifdef _GNU_SOURCE /* GLibc compatibility */ 11711cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern int pipe2(int *, int); 11811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#endif 11911cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern int chroot(const char *); 12011cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern int symlink(const char *, const char *); 12111cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern int readlink(const char *, char *, size_t); 12211cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern int chown(const char *, uid_t, gid_t); 12311cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern int fchown(int, uid_t, gid_t); 12411cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern int lchown(const char *, uid_t, gid_t); 12511cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern int truncate(const char *, off_t); 12611cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern char *getcwd(char *, size_t); 12711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 12811cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern int sync(void); 12911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 13011cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern int close(int); 13111cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern off_t lseek(int, off_t, int); 13211cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern off64_t lseek64(int, off64_t, int); 13311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 13411cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern ssize_t read(int, void *, size_t); 13511cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern ssize_t write(int, const void *, size_t); 13611cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern ssize_t pread(int, void *, size_t, off_t); 13711cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern ssize_t pread64(int, void *, size_t, off64_t); 13811cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern ssize_t pwrite(int, const void *, size_t, off_t); 13911cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern ssize_t pwrite64(int, const void *, size_t, off64_t); 14011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 14111cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern int dup(int); 14211cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern int dup2(int, int); 14311cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern int fcntl(int, int, ...); 14411cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern int ioctl(int, int, ...); 14511cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern int flock(int, int); 14611cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern int fsync(int); 14711cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern int fdatasync(int); 14811cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern int ftruncate(int, off_t); 14911cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern int ftruncate64(int, off64_t); 15011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 15111cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern int pause(void); 15211cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern unsigned int alarm(unsigned int); 15311cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern unsigned int sleep(unsigned int); 15411cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern int usleep(unsigned long); 15511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 15611cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern int gethostname(char *, size_t); 15711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 15811cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern int getdtablesize(void); 15911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 16011cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern void *__brk(void *); 16111cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern int brk(void *); 16211cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern void *sbrk(ptrdiff_t); 16311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 16411cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern int getopt(int, char * const *, const char *); 16511cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern char *optarg; 16611cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern int optind, opterr, optopt; 16711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 16811cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern int isatty(int); 16911cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern char* ttyname(int); 17011cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern int ttyname_r(int, char*, size_t); 17111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 17211cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern int acct(const char* filepath); 17311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 17411cd02dfb91661c65134cac258cf5924270e9d2Dan Albertstatic __inline__ int getpagesize(void) { 17511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert extern unsigned int __page_size; 17611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert return __page_size; 17711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert} 17811cd02dfb91661c65134cac258cf5924270e9d2Dan Albertstatic __inline__ int __getpageshift(void) { 17911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert extern unsigned int __page_shift; 18011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert return __page_shift; 18111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert} 18211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 18311cd02dfb91661c65134cac258cf5924270e9d2Dan Albertlong sysconf(int); 18411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 18511cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern int daemon(int, int); 18611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 18711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert/* A special syscall that is only available on the ARM, not x86 function. */ 18811cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern int cacheflush(long start, long end, long flags); 18911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 19011cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern pid_t tcgetpgrp(int fd); 19111cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern int tcsetpgrp(int fd, pid_t _pid); 19211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 19311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#if 0 /* MISSING FROM BIONIC */ 19411cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern pid_t getsid(pid_t); 19511cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern int execvpe(const char *, char * const *, char * const *); 19611cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern int execlpe(const char *, const char *, ...); 19711cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern int getfsuid(uid_t); 19811cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern int setfsuid(uid_t); 19911cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern int getlogin_r(char* name, size_t namesize); 20011cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern int sethostname(const char *, size_t); 20111cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern int getdomainname(char *, size_t); 20211cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern int setdomainname(const char *, size_t); 20311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#endif /* MISSING */ 20411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 20511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert/* Used to retry syscalls that can return EINTR. */ 20611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define TEMP_FAILURE_RETRY(exp) ({ \ 20711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert typeof (exp) _rc; \ 20811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert do { \ 20911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert _rc = (exp); \ 21011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert } while (_rc == -1 && errno == EINTR); \ 21111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert _rc; }) 21211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 21311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert__END_DECLS 21411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 21511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#endif /* _UNISTD_H_ */ 216