1#ifndef _UNISTD_H
2# include <posix/unistd.h>
3
4# ifndef _ISOMAC
5
6# include <stdbool.h>
7# include <kernel-features.h>
8
9libc_hidden_proto (_exit, __noreturn__)
10# ifndef NO_RTLD_HIDDEN
11rtld_hidden_proto (_exit, __noreturn__)
12# endif
13libc_hidden_proto (alarm)
14extern size_t __confstr (int name, char *buf, size_t len);
15libc_hidden_proto (__confstr)
16libc_hidden_proto (confstr)
17libc_hidden_proto (execl)
18libc_hidden_proto (execle)
19libc_hidden_proto (execlp)
20libc_hidden_proto (execvp)
21libc_hidden_proto (getpid)
22libc_hidden_proto (getsid)
23libc_hidden_proto (getdomainname)
24extern __typeof (getlogin_r) __getlogin_r __nonnull ((1));
25libc_hidden_proto (__getlogin_r)
26libc_hidden_proto (getlogin_r)
27libc_hidden_proto (seteuid)
28libc_hidden_proto (setegid)
29libc_hidden_proto (tcgetpgrp)
30libc_hidden_proto (readlinkat)
31libc_hidden_proto (fsync)
32libc_hidden_proto (fdatasync)
33
34/* Now define the internal interfaces. */
35extern int __access (const char *__name, int __type);
36libc_hidden_proto (__access)
37extern int __euidaccess (const char *__name, int __type);
38extern int __faccessat (int __fd, const char *__file, int __type, int __flag);
39extern int __faccessat_noerrno (int __fd, const char *__file, int __type,
40 int __flag);
41extern __off64_t __lseek64 (int __fd, __off64_t __offset, int __whence);
42extern __off_t __lseek (int __fd, __off_t __offset, int __whence);
43libc_hidden_proto (__lseek)
44extern __off_t __libc_lseek (int __fd, __off_t __offset, int __whence);
45extern __off64_t __libc_lseek64 (int __fd, __off64_t __offset, int __whence);
46extern ssize_t __pread (int __fd, void *__buf, size_t __nbytes,
47 __off_t __offset);
48libc_hidden_proto (__pread);
49extern ssize_t __libc_pread (int __fd, void *__buf, size_t __nbytes,
50 __off_t __offset);
51extern ssize_t __pread64 (int __fd, void *__buf, size_t __nbytes,
52 __off64_t __offset);
53libc_hidden_proto (__pread64);
54extern ssize_t __libc_pread64 (int __fd, void *__buf, size_t __nbytes,
55 __off64_t __offset);
56extern ssize_t __pwrite (int __fd, const void *__buf, size_t __n,
57 __off_t __offset);
58libc_hidden_proto (__pwrite)
59extern ssize_t __libc_pwrite (int __fd, const void *__buf, size_t __n,
60 __off_t __offset);
61extern ssize_t __pwrite64 (int __fd, const void *__buf, size_t __n,
62 __off64_t __offset);
63libc_hidden_proto (__pwrite64)
64extern ssize_t __libc_pwrite64 (int __fd, const void *__buf, size_t __n,
65 __off64_t __offset);
66extern ssize_t __libc_read (int __fd, void *__buf, size_t __n);
67libc_hidden_proto (__libc_read)
68libc_hidden_proto (read)
69extern ssize_t __libc_write (int __fd, const void *__buf, size_t __n);
70libc_hidden_proto (__libc_write)
71libc_hidden_proto (write)
72extern int __pipe (int __pipedes[2]);
73libc_hidden_proto (__pipe)
74extern int __pipe2 (int __pipedes[2], int __flags) attribute_hidden;
75extern unsigned int __sleep (unsigned int __seconds) attribute_hidden;
76extern int __chown (const char *__file,
77 __uid_t __owner, __gid_t __group);
78libc_hidden_proto (__chown)
79extern int __fchown (int __fd,
80 __uid_t __owner, __gid_t __group);
81extern int __fchownat (int __fd, const char *__file, uid_t __owner, gid_t __group, int __flag);
82extern int __lchown (const char *__file, __uid_t __owner,
83 __gid_t __group);
84extern int __chdir (const char *__path) attribute_hidden;
85extern int __fchdir (int __fd) attribute_hidden;
86extern char *__getcwd (char *__buf, size_t __size);
87libc_hidden_proto (__getcwd)
88extern int __rmdir (const char *__path) attribute_hidden;
89extern int __execvpe (const char *file, char *const argv[],
90 char *const envp[]) attribute_hidden;
91extern int __execvpex (const char *file, char *const argv[],
92 char *const envp[]) attribute_hidden;
93
94/* Get the canonical absolute name of the named directory, and put it in SIZE
95 bytes of BUF. Returns NULL if the directory couldn't be determined or
96 SIZE was too small. If successful, returns BUF. In GNU, if BUF is
97 NULL, an array is allocated with `malloc'; the array is SIZE bytes long,
98 unless SIZE <= 0, in which case it is as big as necessary. */
99
100char *__canonicalize_directory_name_internal (const char *__thisdir,
101 char *__buf,
102 size_t __size) attribute_hidden;
103
104extern int __dup (int __fd);
105libc_hidden_proto (__dup)
106extern int __dup2 (int __fd, int __fd2);
107libc_hidden_proto (__dup2)
108extern int __dup3 (int __fd, int __fd2, int flags);
109libc_hidden_proto (__dup3)
110extern int __execve (const char *__path, char *const __argv[],
111 char *const __envp[]) attribute_hidden;
112extern int __execveat (int dirfd, const char *__path, char *const __argv[],
113 char *const __envp[], int flags) attribute_hidden;
114extern long int __pathconf (const char *__path, int __name);
115extern long int __fpathconf (int __fd, int __name);
116extern long int __sysconf (int __name);
117libc_hidden_proto (__sysconf)
118extern __pid_t __getpid (void);
119libc_hidden_proto (__getpid)
120extern __pid_t __getppid (void);
121extern __pid_t __setsid (void) attribute_hidden;
122extern __uid_t __getuid (void) attribute_hidden;
123extern __uid_t __geteuid (void) attribute_hidden;
124extern __gid_t __getgid (void) attribute_hidden;
125extern __gid_t __getegid (void) attribute_hidden;
126extern int __getgroups (int __size, __gid_t __list[]) attribute_hidden;
127libc_hidden_proto (__getpgid)
128extern int __group_member (__gid_t __gid) attribute_hidden;
129extern int __setuid (__uid_t __uid);
130extern int __setreuid (__uid_t __ruid, __uid_t __euid);
131extern int __setgid (__gid_t __gid);
132extern int __setpgid (__pid_t __pid, __pid_t __pgid);
133libc_hidden_proto (__setpgid)
134extern int __setregid (__gid_t __rgid, __gid_t __egid);
135extern int __getresuid (__uid_t *__ruid, __uid_t *__euid, __uid_t *__suid);
136extern int __getresgid (__gid_t *__rgid, __gid_t *__egid, __gid_t *__sgid);
137extern int __setresuid (__uid_t __ruid, __uid_t __euid, __uid_t __suid);
138extern int __setresgid (__gid_t __rgid, __gid_t __egid, __gid_t __sgid);
139libc_hidden_proto (__getresuid)
140libc_hidden_proto (__getresgid)
141libc_hidden_proto (__setresuid)
142libc_hidden_proto (__setresgid)
143extern __pid_t __vfork (void);
144libc_hidden_proto (__vfork)
145extern int __ttyname_r (int __fd, char *__buf, size_t __buflen);
146libc_hidden_proto (__ttyname_r)
147extern __pid_t _Fork (void);
148libc_hidden_proto (_Fork);
149extern int __isatty (int __fd) attribute_hidden;
150extern int __link (const char *__from, const char *__to);
151extern int __symlink (const char *__from, const char *__to);
152extern int __symlinkat (const char *__from, int __fd, const char *__to);
153extern ssize_t __readlink (const char *__path, char *__buf, size_t __len)
154 attribute_hidden;
155extern ssize_t __readlinkat (int __fd, const char *__file_name, char *__buf, size_t __len);
156extern int __unlink (const char *__name) attribute_hidden;
157extern int __unlinkat (int __fd, const char *__name, int __flag);
158extern int __gethostname (char *__name, size_t __len) attribute_hidden;
159extern int __revoke (const char *__file);
160extern int __profil (unsigned short int *__sample_buffer, size_t __size,
161 size_t __offset, unsigned int __scale)
162 attribute_hidden;
163extern int __getdtablesize (void) attribute_hidden;
164extern int __brk (void *__addr) attribute_hidden;
165extern int __close (int __fd);
166libc_hidden_proto (__close)
167extern int __libc_close (int __fd);
168# if __ASSUME_CLOSE_RANGE
169static inline _Bool __closefrom_fallback (int __lowfd, _Bool dirfd_fallback)
170{
171 return false;
172}
173# else
174extern _Bool __closefrom_fallback (int __lowfd, _Bool) attribute_hidden;
175# endif
176extern ssize_t __read (int __fd, void *__buf, size_t __nbytes);
177libc_hidden_proto (__read)
178extern ssize_t __write (int __fd, const void *__buf, size_t __n);
179libc_hidden_proto (__write)
180extern __pid_t __fork (void);
181libc_hidden_proto (__fork)
182extern int __getpagesize (void) __attribute__ ((__const__));
183libc_hidden_proto (__getpagesize)
184extern int __ftruncate (int __fd, __off_t __length) attribute_hidden;
185extern int __ftruncate64 (int __fd, __off64_t __length) attribute_hidden;
186extern int __truncate (const char *path, __off_t __length);
187extern void *__sbrk (intptr_t __delta);
188libc_hidden_proto (__sbrk)
189
190extern int __tcsetpgrp (int fd, __pid_t pgrp);
191libc_hidden_proto (__tcsetpgrp)
192
193/* This variable is set nonzero at startup if the process's effective
194 IDs differ from its real IDs, or it is otherwise indicated that
195 extra security should be used. When this is set the dynamic linker
196 and some functions contained in the C library ignore various
197 environment variables that normally affect them. */
198extern int __libc_enable_secure attribute_relro;
199rtld_hidden_proto (__libc_enable_secure)
200
201
202/* Various internal function. */
203extern void __libc_check_standard_fds (void) attribute_hidden;
204
205
206/* Internal name for fork function. */
207extern __pid_t __libc_fork (void);
208
209/* Suspend the process until a signal arrives.
210 This always returns -1 and sets `errno' to EINTR. */
211extern int __libc_pause (void);
212
213extern int __getlogin_r_loginuid (char *name, size_t namesize)
214 attribute_hidden;
215
216# if IS_IN (rtld)
217# include <dl-unistd.h>
218# endif
219
220# endif
221#endif
222