1#ifndef _UNISTD_H
2# include <posix/unistd.h>
3
4# ifndef _ISOMAC
5__BEGIN_DECLS
6
7libc_hidden_proto (_exit, __noreturn__)
8rtld_hidden_proto (_exit, __noreturn__)
9libc_hidden_proto (alarm)
10libc_hidden_proto (confstr)
11libc_hidden_proto (execl)
12libc_hidden_proto (execle)
13libc_hidden_proto (execlp)
14libc_hidden_proto (execvp)
15libc_hidden_proto (getpid)
16libc_hidden_proto (getsid)
17libc_hidden_proto (getdomainname)
18extern __typeof (getlogin_r) __getlogin_r __nonnull ((1));
19libc_hidden_proto (__getlogin_r)
20libc_hidden_proto (getlogin_r)
21libc_hidden_proto (seteuid)
22libc_hidden_proto (setegid)
23libc_hidden_proto (tcgetpgrp)
24libc_hidden_proto (readlinkat)
25
26/* Now define the internal interfaces. */
27extern int __access (const char *__name, int __type);
28extern int __euidaccess (const char *__name, int __type);
29extern __off64_t __lseek64 (int __fd, __off64_t __offset, int __whence);
30extern __off_t __lseek (int __fd, __off_t __offset, int __whence);
31libc_hidden_proto (__lseek)
32extern __off_t __libc_lseek (int __fd, __off_t __offset, int __whence);
33extern __off64_t __libc_lseek64 (int __fd, __off64_t __offset, int __whence);
34extern ssize_t __pread (int __fd, void *__buf, size_t __nbytes,
35 __off_t __offset);
36extern ssize_t __libc_pread (int __fd, void *__buf, size_t __nbytes,
37 __off_t __offset);
38extern ssize_t __pread64 (int __fd, void *__buf, size_t __nbytes,
39 __off64_t __offset);
40extern ssize_t __libc_pread64 (int __fd, void *__buf, size_t __nbytes,
41 __off64_t __offset);
42extern ssize_t __pwrite (int __fd, const void *__buf, size_t __n,
43 __off_t __offset);
44extern ssize_t __libc_pwrite (int __fd, const void *__buf, size_t __n,
45 __off_t __offset);
46extern ssize_t __pwrite64 (int __fd, const void *__buf, size_t __n,
47 __off64_t __offset);
48libc_hidden_proto (__pwrite64)
49extern ssize_t __libc_pwrite64 (int __fd, const void *__buf, size_t __n,
50 __off64_t __offset) attribute_hidden;
51extern ssize_t __libc_read (int __fd, void *__buf, size_t __n);
52libc_hidden_proto (__libc_read)
53extern ssize_t __libc_write (int __fd, const void *__buf, size_t __n);
54libc_hidden_proto (__libc_write)
55extern int __pipe (int __pipedes[2]);
56libc_hidden_proto (__pipe)
57extern int __pipe2 (int __pipedes[2], int __flags);
58extern unsigned int __sleep (unsigned int __seconds);
59extern int __chown (const char *__file,
60 __uid_t __owner, __gid_t __group);
61libc_hidden_proto (__chown)
62extern int __fchown (int __fd,
63 __uid_t __owner, __gid_t __group);
64extern int __lchown (const char *__file, __uid_t __owner,
65 __gid_t __group);
66extern int __chdir (const char *__path);
67extern int __fchdir (int __fd);
68extern char *__getcwd (char *__buf, size_t __size);
69extern int __rmdir (const char *__path);
70extern int __execvpe (const char *file, char *const argv[],
71 char *const envp[]);
72
73/* Get the canonical absolute name of the named directory, and put it in SIZE
74 bytes of BUF. Returns NULL if the directory couldn't be determined or
75 SIZE was too small. If successful, returns BUF. In GNU, if BUF is
76 NULL, an array is allocated with `malloc'; the array is SIZE bytes long,
77 unless SIZE <= 0, in which case it is as big as necessary. */
78
79char *__canonicalize_directory_name_internal (const char *__thisdir,
80 char *__buf,
81 size_t __size) attribute_hidden;
82
83extern int __dup (int __fd);
84libc_hidden_proto (__dup)
85extern int __dup2 (int __fd, int __fd2);
86libc_hidden_proto (__dup2)
87extern int __dup3 (int __fd, int __fd2, int flags);
88libc_hidden_proto (__dup3)
89extern int __execve (const char *__path, char *const __argv[],
90 char *const __envp[]);
91extern long int __pathconf (const char *__path, int __name);
92extern long int __fpathconf (int __fd, int __name);
93extern long int __sysconf (int __name);
94libc_hidden_proto (__sysconf)
95extern __pid_t __getpid (void);
96libc_hidden_proto (__getpid)
97extern __pid_t __getppid (void);
98extern __pid_t __setsid (void);
99extern __uid_t __getuid (void);
100extern __uid_t __geteuid (void);
101extern __gid_t __getgid (void);
102extern __gid_t __getegid (void);
103extern int __getgroups (int __size, __gid_t __list[]);
104libc_hidden_proto (__getpgid)
105extern int __group_member (__gid_t __gid);
106extern int __setuid (__uid_t __uid);
107extern int __setreuid (__uid_t __ruid, __uid_t __euid);
108extern int __setgid (__gid_t __gid);
109extern int __setpgid (__pid_t __pid, __pid_t __pgid);
110libc_hidden_proto (__setpgid)
111extern int __setregid (__gid_t __rgid, __gid_t __egid);
112extern int __getresuid (__uid_t *__ruid, __uid_t *__euid, __uid_t *__suid);
113extern int __getresgid (__gid_t *__rgid, __gid_t *__egid, __gid_t *__sgid);
114extern int __setresuid (__uid_t __ruid, __uid_t __euid, __uid_t __suid);
115extern int __setresgid (__gid_t __rgid, __gid_t __egid, __gid_t __sgid);
116libc_hidden_proto (__getresuid)
117libc_hidden_proto (__getresgid)
118libc_hidden_proto (__setresuid)
119libc_hidden_proto (__setresgid)
120extern __pid_t __vfork (void);
121libc_hidden_proto (__vfork)
122extern int __ttyname_r (int __fd, char *__buf, size_t __buflen);
123extern int __isatty (int __fd);
124extern int __link (const char *__from, const char *__to);
125extern int __symlink (const char *__from, const char *__to);
126extern ssize_t __readlink (const char *__path, char *__buf, size_t __len);
127extern int __unlink (const char *__name);
128extern int __gethostname (char *__name, size_t __len);
129extern int __profil (unsigned short int *__sample_buffer, size_t __size,
130 size_t __offset, unsigned int __scale);
131extern int __getdtablesize (void);
132extern int __brk (void *__addr);
133extern int __close (int __fd);
134libc_hidden_proto (__close)
135extern int __libc_close (int __fd);
136extern ssize_t __read (int __fd, void *__buf, size_t __nbytes);
137libc_hidden_proto (__read)
138extern ssize_t __write (int __fd, const void *__buf, size_t __n);
139libc_hidden_proto (__write)
140extern __pid_t __fork (void);
141libc_hidden_proto (__fork)
142extern int __getpagesize (void) __attribute__ ((__const__));
143libc_hidden_proto (__getpagesize)
144extern int __ftruncate (int __fd, __off_t __length);
145extern int __ftruncate64 (int __fd, __off64_t __length);
146extern int __truncate (const char *path, __off_t __length);
147extern void *__sbrk (intptr_t __delta);
148libc_hidden_proto (__sbrk)
149
150
151/* This variable is set nonzero at startup if the process's effective
152 IDs differ from its real IDs, or it is otherwise indicated that
153 extra security should be used. When this is set the dynamic linker
154 and some functions contained in the C library ignore various
155 environment variables that normally affect them. */
156extern int __libc_enable_secure attribute_relro;
157extern int __libc_enable_secure_decided;
158rtld_hidden_proto (__libc_enable_secure)
159
160
161/* Various internal function. */
162extern void __libc_check_standard_fds (void) attribute_hidden;
163
164
165/* Internal name for fork function. */
166extern __pid_t __libc_fork (void);
167
168/* Suspend the process until a signal arrives.
169 This always returns -1 and sets `errno' to EINTR. */
170extern int __libc_pause (void);
171/* Not cancelable variant. */
172extern int __pause_nocancel (void) attribute_hidden;
173
174extern int __have_pipe2 attribute_hidden;
175extern int __have_dup3 attribute_hidden;
176
177extern int __getlogin_r_loginuid (char *name, size_t namesize)
178 attribute_hidden;
179
180# if IS_IN (rtld)
181# include <dl-unistd.h>
182# endif
183
184# if IS_IN (rtld) || !defined SHARED
185/* __access variant that does not set errno. Used in very early initialization
186 code in libc.a and ld.so. It follows access return semantics (zero for
187 sucess otherwise a value different than 0). */
188extern __typeof (__access) __access_noerrno attribute_hidden;
189# endif
190
191__END_DECLS
192# endif
193
194#endif
195