330 lines
9.9 KiB
C
330 lines
9.9 KiB
C
/*
|
|
* Copyright (C) 2008 The Android Open Source Project
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* * Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* * Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in
|
|
* the documentation and/or other materials provided with the
|
|
* distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
|
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
|
|
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
|
|
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
|
|
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
|
|
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
|
|
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
|
|
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*/
|
|
|
|
#ifndef _UNISTD_H_
|
|
#define _UNISTD_H_
|
|
|
|
#include <stddef.h>
|
|
#include <sys/cdefs.h>
|
|
#include <sys/types.h>
|
|
#include <sys/select.h>
|
|
#include <sys/sysconf.h>
|
|
|
|
#include <machine/posix_limits.h>
|
|
|
|
__BEGIN_DECLS
|
|
|
|
#define STDIN_FILENO 0
|
|
#define STDOUT_FILENO 1
|
|
#define STDERR_FILENO 2
|
|
|
|
#define F_OK 0
|
|
#define X_OK 1
|
|
#define W_OK 2
|
|
#define R_OK 4
|
|
|
|
#define SEEK_SET 0
|
|
#define SEEK_CUR 1
|
|
#define SEEK_END 2
|
|
|
|
#define _PC_FILESIZEBITS 0
|
|
#define _PC_LINK_MAX 1
|
|
#define _PC_MAX_CANON 2
|
|
#define _PC_MAX_INPUT 3
|
|
#define _PC_NAME_MAX 4
|
|
#define _PC_PATH_MAX 5
|
|
#define _PC_PIPE_BUF 6
|
|
#define _PC_2_SYMLINKS 7
|
|
#define _PC_ALLOC_SIZE_MIN 8
|
|
#define _PC_REC_INCR_XFER_SIZE 9
|
|
#define _PC_REC_MAX_XFER_SIZE 10
|
|
#define _PC_REC_MIN_XFER_SIZE 11
|
|
#define _PC_REC_XFER_ALIGN 12
|
|
#define _PC_SYMLINK_MAX 13
|
|
#define _PC_CHOWN_RESTRICTED 14
|
|
#define _PC_NO_TRUNC 15
|
|
#define _PC_VDISABLE 16
|
|
#define _PC_ASYNC_IO 17
|
|
#define _PC_PRIO_IO 18
|
|
#define _PC_SYNC_IO 19
|
|
|
|
extern char** environ;
|
|
|
|
extern __noreturn void _exit(int);
|
|
|
|
extern pid_t fork(void);
|
|
extern pid_t vfork(void);
|
|
extern pid_t getpid(void);
|
|
extern pid_t gettid(void) __pure2;
|
|
extern pid_t getpgid(pid_t);
|
|
extern int setpgid(pid_t, pid_t);
|
|
extern pid_t getppid(void);
|
|
extern pid_t getpgrp(void);
|
|
extern int setpgrp(void);
|
|
extern pid_t getsid(pid_t);
|
|
extern pid_t setsid(void);
|
|
|
|
extern int execv(const char *, char * const *);
|
|
extern int execvp(const char *, char * const *);
|
|
extern int execvpe(const char *, char * const *, char * const *);
|
|
extern int execve(const char *, char * const *, char * const *);
|
|
extern int execl(const char *, const char *, ...);
|
|
extern int execlp(const char *, const char *, ...);
|
|
extern int execle(const char *, const char *, ...);
|
|
|
|
extern int nice(int);
|
|
|
|
extern int setuid(uid_t);
|
|
extern uid_t getuid(void);
|
|
extern int seteuid(uid_t);
|
|
extern uid_t geteuid(void);
|
|
extern int setgid(gid_t);
|
|
extern gid_t getgid(void);
|
|
extern int setegid(gid_t);
|
|
extern gid_t getegid(void);
|
|
extern int getgroups(int, gid_t *);
|
|
extern int setgroups(size_t, const gid_t *);
|
|
extern int setreuid(uid_t, uid_t);
|
|
extern int setregid(gid_t, gid_t);
|
|
extern int setresuid(uid_t, uid_t, uid_t);
|
|
extern int setresgid(gid_t, gid_t, gid_t);
|
|
extern int getresuid(uid_t *ruid, uid_t *euid, uid_t *suid);
|
|
extern int getresgid(gid_t *rgid, gid_t *egid, gid_t *sgid);
|
|
extern char* getlogin(void);
|
|
|
|
extern long fpathconf(int, int);
|
|
extern long pathconf(const char*, int);
|
|
|
|
extern int access(const char*, int);
|
|
extern int faccessat(int, const char*, int, int);
|
|
extern int link(const char*, const char*);
|
|
extern int linkat(int, const char*, int, const char*, int);
|
|
extern int unlink(const char*);
|
|
extern int unlinkat(int, const char*, int);
|
|
extern int chdir(const char *);
|
|
extern int fchdir(int);
|
|
extern int rmdir(const char *);
|
|
extern int pipe(int *);
|
|
#if defined(__USE_GNU)
|
|
extern int pipe2(int *, int);
|
|
#endif
|
|
extern int chroot(const char *);
|
|
extern int symlink(const char*, const char*);
|
|
extern int symlinkat(const char*, int, const char*);
|
|
extern ssize_t readlink(const char*, char*, size_t);
|
|
extern ssize_t readlinkat(int, const char*, char*, size_t);
|
|
extern int chown(const char *, uid_t, gid_t);
|
|
extern int fchown(int, uid_t, gid_t);
|
|
extern int fchownat(int, const char*, uid_t, gid_t, int);
|
|
extern int lchown(const char *, uid_t, gid_t);
|
|
extern char *getcwd(char *, size_t);
|
|
|
|
extern int sync(void);
|
|
|
|
extern int close(int);
|
|
|
|
extern ssize_t read(int, void *, size_t);
|
|
extern ssize_t write(int, const void *, size_t);
|
|
|
|
extern int dup(int);
|
|
extern int dup2(int, int);
|
|
extern int dup3(int, int, int);
|
|
extern int fcntl(int, int, ...);
|
|
extern int ioctl(int, int, ...);
|
|
extern int fsync(int);
|
|
extern int fdatasync(int);
|
|
|
|
#if defined(__USE_FILE_OFFSET64)
|
|
extern int truncate(const char *, off_t) __RENAME(truncate64);
|
|
extern off_t lseek(int, off_t, int) __RENAME(lseek64);
|
|
extern ssize_t pread(int, void *, size_t, off_t) __RENAME(pread64);
|
|
extern ssize_t pwrite(int, const void *, size_t, off_t) __RENAME(pwrite64);
|
|
extern int ftruncate(int, off_t) __RENAME(ftruncate64);
|
|
#else
|
|
extern int truncate(const char *, off_t);
|
|
extern off_t lseek(int, off_t, int);
|
|
extern ssize_t pread(int, void *, size_t, off_t);
|
|
extern ssize_t pwrite(int, const void *, size_t, off_t);
|
|
extern int ftruncate(int, off_t);
|
|
#endif
|
|
extern int truncate64(const char *, off64_t);
|
|
extern off64_t lseek64(int, off64_t, int);
|
|
extern ssize_t pread64(int, void *, size_t, off64_t);
|
|
extern ssize_t pwrite64(int, const void *, size_t, off64_t);
|
|
extern int ftruncate64(int, off64_t);
|
|
|
|
extern int pause(void);
|
|
extern unsigned int alarm(unsigned int);
|
|
extern unsigned int sleep(unsigned int);
|
|
extern int usleep(useconds_t);
|
|
|
|
int gethostname(char*, size_t);
|
|
int sethostname(const char*, size_t);
|
|
|
|
extern void *__brk(void *);
|
|
extern int brk(void *);
|
|
extern void *sbrk(ptrdiff_t);
|
|
|
|
extern int getopt(int, char * const *, const char *);
|
|
extern char *optarg;
|
|
extern int optind, opterr, optopt;
|
|
|
|
extern int isatty(int);
|
|
extern char* ttyname(int);
|
|
extern int ttyname_r(int, char*, size_t);
|
|
|
|
extern int acct(const char* filepath);
|
|
|
|
int getpagesize(void);
|
|
|
|
long sysconf(int);
|
|
|
|
long syscall(long number, ...);
|
|
|
|
extern int daemon(int, int);
|
|
|
|
#if defined(__arm__) || (defined(__mips__) && !defined(__LP64__))
|
|
extern int cacheflush(long, long, long);
|
|
/* __attribute__((deprecated("use __builtin___clear_cache instead"))); */
|
|
#endif
|
|
|
|
extern pid_t tcgetpgrp(int fd);
|
|
extern int tcsetpgrp(int fd, pid_t _pid);
|
|
|
|
/* Used to retry syscalls that can return EINTR. */
|
|
#define TEMP_FAILURE_RETRY(exp) ({ \
|
|
__typeof__(exp) _rc; \
|
|
do { \
|
|
_rc = (exp); \
|
|
} while (_rc == -1 && errno == EINTR); \
|
|
_rc; })
|
|
|
|
extern ssize_t __pread_chk(int, void*, size_t, off_t, size_t);
|
|
__errordecl(__pread_dest_size_error, "pread called with size bigger than destination");
|
|
__errordecl(__pread_count_toobig_error, "pread called with count > SSIZE_MAX");
|
|
extern ssize_t __pread_real(int, void*, size_t, off_t) __RENAME(pread);
|
|
|
|
extern ssize_t __pread64_chk(int, void*, size_t, off64_t, size_t);
|
|
__errordecl(__pread64_dest_size_error, "pread64 called with size bigger than destination");
|
|
__errordecl(__pread64_count_toobig_error, "pread64 called with count > SSIZE_MAX");
|
|
extern ssize_t __pread64_real(int, void*, size_t, off64_t) __RENAME(pread64);
|
|
|
|
extern ssize_t __read_chk(int, void*, size_t, size_t);
|
|
__errordecl(__read_dest_size_error, "read called with size bigger than destination");
|
|
__errordecl(__read_count_toobig_error, "read called with count > SSIZE_MAX");
|
|
extern ssize_t __read_real(int, void*, size_t) __RENAME(read);
|
|
|
|
#if defined(__BIONIC_FORTIFY)
|
|
|
|
#if defined(__USE_FILE_OFFSET64)
|
|
#define __PREAD_PREFIX(x) __pread64_ ## x
|
|
#else
|
|
#define __PREAD_PREFIX(x) __pread_ ## x
|
|
#endif
|
|
|
|
__BIONIC_FORTIFY_INLINE
|
|
ssize_t pread(int fd, void* buf, size_t count, off_t offset) {
|
|
size_t bos = __bos0(buf);
|
|
|
|
#if !defined(__clang__)
|
|
if (__builtin_constant_p(count) && (count > SSIZE_MAX)) {
|
|
__PREAD_PREFIX(count_toobig_error)();
|
|
}
|
|
|
|
if (bos == __BIONIC_FORTIFY_UNKNOWN_SIZE) {
|
|
return __PREAD_PREFIX(real)(fd, buf, count, offset);
|
|
}
|
|
|
|
if (__builtin_constant_p(count) && (count > bos)) {
|
|
__PREAD_PREFIX(dest_size_error)();
|
|
}
|
|
|
|
if (__builtin_constant_p(count) && (count <= bos)) {
|
|
return __PREAD_PREFIX(real)(fd, buf, count, offset);
|
|
}
|
|
#endif
|
|
|
|
return __PREAD_PREFIX(chk)(fd, buf, count, offset, bos);
|
|
}
|
|
|
|
__BIONIC_FORTIFY_INLINE
|
|
ssize_t pread64(int fd, void* buf, size_t count, off64_t offset) {
|
|
size_t bos = __bos0(buf);
|
|
|
|
#if !defined(__clang__)
|
|
if (__builtin_constant_p(count) && (count > SSIZE_MAX)) {
|
|
__pread64_count_toobig_error();
|
|
}
|
|
|
|
if (bos == __BIONIC_FORTIFY_UNKNOWN_SIZE) {
|
|
return __pread64_real(fd, buf, count, offset);
|
|
}
|
|
|
|
if (__builtin_constant_p(count) && (count > bos)) {
|
|
__pread64_dest_size_error();
|
|
}
|
|
|
|
if (__builtin_constant_p(count) && (count <= bos)) {
|
|
return __pread64_real(fd, buf, count, offset);
|
|
}
|
|
#endif
|
|
|
|
return __pread64_chk(fd, buf, count, offset, bos);
|
|
}
|
|
|
|
__BIONIC_FORTIFY_INLINE
|
|
ssize_t read(int fd, void* buf, size_t count) {
|
|
size_t bos = __bos0(buf);
|
|
|
|
#if !defined(__clang__)
|
|
if (__builtin_constant_p(count) && (count > SSIZE_MAX)) {
|
|
__read_count_toobig_error();
|
|
}
|
|
|
|
if (bos == __BIONIC_FORTIFY_UNKNOWN_SIZE) {
|
|
return __read_real(fd, buf, count);
|
|
}
|
|
|
|
if (__builtin_constant_p(count) && (count > bos)) {
|
|
__read_dest_size_error();
|
|
}
|
|
|
|
if (__builtin_constant_p(count) && (count <= bos)) {
|
|
return __read_real(fd, buf, count);
|
|
}
|
|
#endif
|
|
|
|
return __read_chk(fd, buf, count, bos);
|
|
}
|
|
|
|
#endif /* defined(__BIONIC_FORTIFY) */
|
|
|
|
__END_DECLS
|
|
|
|
#endif /* _UNISTD_H_ */
|