1#ifndef _UNISTD_H
2# include <posix/unistd.h>
3
4# ifndef _ISOMAC
5
6# include <stdbool.h>
7# include <kernel-features.h>
8# include <bits/unistd-decl.h>
9
10libc_hidden_proto (_exit, __noreturn__)
11# ifndef NO_RTLD_HIDDEN
12rtld_hidden_proto (_exit, __noreturn__)
13# endif
14libc_hidden_proto (alarm)
15extern size_t __confstr (int name, char *buf, size_t len);
16libc_hidden_proto (__confstr)
17libc_hidden_proto (confstr)
18libc_hidden_proto (execl)
19libc_hidden_proto (execle)
20libc_hidden_proto (execlp)
21libc_hidden_proto (execvp)
22libc_hidden_proto (getpid)
23libc_hidden_proto (getsid)
24libc_hidden_proto (getdomainname)
25extern __typeof (getlogin_r) __getlogin_r __nonnull ((1));
26libc_hidden_proto (__getlogin_r)
27libc_hidden_proto (getlogin_r)
28libc_hidden_proto (seteuid)
29libc_hidden_proto (setegid)
30libc_hidden_proto (tcgetpgrp)
31libc_hidden_proto (readlinkat)
32libc_hidden_proto (fsync)
33libc_hidden_proto (fdatasync)
34
35libc_hidden_proto (__read_chk)
36libc_hidden_proto (__getdomainname_chk)
37libc_hidden_proto (__getlogin_r_chk)
38
39/* Now define the internal interfaces. */
40extern int __access (const char *__name, int __type);
41libc_hidden_proto (__access)
42extern int __euidaccess (const char *__name, int __type);
43extern int __faccessat (int __fd, const char *__file, int __type, int __flag);
44extern int __faccessat_noerrno (int __fd, const char *__file, int __type,
45 int __flag);
46extern __off64_t __lseek64 (int __fd, __off64_t __offset, int __whence);
47extern __off_t __lseek (int __fd, __off_t __offset, int __whence);
48libc_hidden_proto (__lseek)
49extern __off_t __libc_lseek (int __fd, __off_t __offset, int __whence);
50extern __off64_t __libc_lseek64 (int __fd, __off64_t __offset, int __whence);
51extern ssize_t __pread (int __fd, void *__buf, size_t __nbytes,
52 __off_t __offset);
53libc_hidden_proto (__pread);
54extern ssize_t __libc_pread (int __fd, void *__buf, size_t __nbytes,
55 __off_t __offset);
56extern ssize_t __pread64 (int __fd, void *__buf, size_t __nbytes,
57 __off64_t __offset);
58libc_hidden_proto (__pread64);
59extern ssize_t __libc_pread64 (int __fd, void *__buf, size_t __nbytes,
60 __off64_t __offset);
61extern ssize_t __pwrite (int __fd, const void *__buf, size_t __n,
62 __off_t __offset);
63libc_hidden_proto (__pwrite)
64extern ssize_t __libc_pwrite (int __fd, const void *__buf, size_t __n,
65 __off_t __offset);
66extern ssize_t __pwrite64 (int __fd, const void *__buf, size_t __n,
67 __off64_t __offset);
68libc_hidden_proto (__pwrite64)
69extern ssize_t __libc_pwrite64 (int __fd, const void *__buf, size_t __n,
70 __off64_t __offset);
71extern ssize_t __libc_read (int __fd, void *__buf, size_t __n);
72libc_hidden_proto (__libc_read)
73libc_hidden_proto (read)
74extern ssize_t __libc_write (int __fd, const void *__buf, size_t __n);
75libc_hidden_proto (__libc_write)
76libc_hidden_proto (write)
77extern int __pipe (int __pipedes[2]);
78libc_hidden_proto (__pipe)
79extern int __pipe2 (int __pipedes[2], int __flags) attribute_hidden;
80extern unsigned int __sleep (unsigned int __seconds) attribute_hidden;
81extern int __chown (const char *__file,
82 __uid_t __owner, __gid_t __group);
83libc_hidden_proto (__chown)
84extern int __fchown (int __fd,
85 __uid_t __owner, __gid_t __group);
86extern int __fchownat (int __fd, const char *__file, uid_t __owner, gid_t __group, int __flag);
87extern int __lchown (const char *__file, __uid_t __owner,
88 __gid_t __group);
89extern int __chdir (const char *__path) attribute_hidden;
90extern int __fchdir (int __fd) attribute_hidden;
91extern char *__getcwd (char *__buf, size_t __size);
92libc_hidden_proto (__getcwd)
93extern int __rmdir (const char *__path) attribute_hidden;
94extern int __execvpe (const char *file, char *const argv[],
95 char *const envp[]) attribute_hidden;
96extern int __execvpex (const char *file, char *const argv[],
97 char *const envp[]) attribute_hidden;
98
99/* Get the canonical absolute name of the named directory, and put it in SIZE
100 bytes of BUF. Returns NULL if the directory couldn't be determined or
101 SIZE was too small. If successful, returns BUF. In GNU, if BUF is
102 NULL, an array is allocated with `malloc'; the array is SIZE bytes long,
103 unless SIZE <= 0, in which case it is as big as necessary. */
104
105char *__canonicalize_directory_name_internal (const char *__thisdir,
106 char *__buf,
107 size_t __size) attribute_hidden;
108
109extern int __dup (int __fd);
110libc_hidden_proto (__dup)
111extern int __dup2 (int __fd, int __fd2);
112libc_hidden_proto (__dup2)
113extern int __dup3 (int __fd, int __fd2, int flags);
114libc_hidden_proto (__dup3)
115extern int __execve (const char *__path, char *const __argv[],
116 char *const __envp[]) attribute_hidden;
117extern int __execveat (int dirfd, const char *__path, char *const __argv[],
118 char *const __envp[], int flags) attribute_hidden;
119extern long int __pathconf (const char *__path, int __name);
120extern long int __fpathconf (int __fd, int __name);
121extern long int __sysconf (int __name);
122libc_hidden_proto (__sysconf)
123extern __pid_t __getpid (void);
124libc_hidden_proto (__getpid)
125extern __pid_t __getppid (void);
126extern __pid_t __setsid (void) attribute_hidden;
127extern __uid_t __getuid (void) attribute_hidden;
128extern __uid_t __geteuid (void) attribute_hidden;
129extern __gid_t __getgid (void) attribute_hidden;
130extern __gid_t __getegid (void) attribute_hidden;
131extern int __getgroups (int __size, __gid_t __list[]) attribute_hidden;
132libc_hidden_proto (__getpgid)
133extern int __group_member (__gid_t __gid) attribute_hidden;
134extern int __setuid (__uid_t __uid);
135extern int __setreuid (__uid_t __ruid, __uid_t __euid);
136extern int __setgid (__gid_t __gid);
137extern int __setpgid (__pid_t __pid, __pid_t __pgid);
138libc_hidden_proto (__setpgid)
139extern int __setregid (__gid_t __rgid, __gid_t __egid);
140extern int __getresuid (__uid_t *__ruid, __uid_t *__euid, __uid_t *__suid);
141extern int __getresgid (__gid_t *__rgid, __gid_t *__egid, __gid_t *__sgid);
142extern int __setresuid (__uid_t __ruid, __uid_t __euid, __uid_t __suid);
143extern int __setresgid (__gid_t __rgid, __gid_t __egid, __gid_t __sgid);
144libc_hidden_proto (__getresuid)
145libc_hidden_proto (__getresgid)
146libc_hidden_proto (__setresuid)
147libc_hidden_proto (__setresgid)
148extern __pid_t __vfork (void);
149libc_hidden_proto (__vfork)
150extern int __ttyname_r (int __fd, char *__buf, size_t __buflen);
151libc_hidden_proto (__ttyname_r)
152extern __pid_t _Fork (void);
153libc_hidden_proto (_Fork);
154extern int __isatty (int __fd) attribute_hidden;
155extern int __link (const char *__from, const char *__to);
156extern int __symlink (const char *__from, const char *__to);
157extern int __symlinkat (const char *__from, int __fd, const char *__to);
158extern ssize_t __readlink (const char *__path, char *__buf, size_t __len)
159 attribute_hidden;
160extern ssize_t __readlinkat (int __fd, const char *__file_name, char *__buf, size_t __len);
161extern int __unlink (const char *__name) attribute_hidden;
162extern int __unlinkat (int __fd, const char *__name, int __flag);
163extern int __gethostname (char *__name, size_t __len) attribute_hidden;
164extern int __revoke (const char *__file);
165extern int __profil (unsigned short int *__sample_buffer, size_t __size,
166 size_t __offset, unsigned int __scale)
167 attribute_hidden;
168extern int __getdtablesize (void) attribute_hidden;
169extern int __brk (void *__addr) attribute_hidden;
170extern int __close (int __fd);
171libc_hidden_proto (__close)
172extern int __libc_close (int __fd);
173# if __ASSUME_CLOSE_RANGE
174static inline _Bool __closefrom_fallback (int __lowfd, _Bool dirfd_fallback)
175{
176 return false;
177}
178# else
179extern _Bool __closefrom_fallback (int __lowfd, _Bool) attribute_hidden;
180# endif
181extern ssize_t __read (int __fd, void *__buf, size_t __nbytes);
182libc_hidden_proto (__read)
183extern ssize_t __write (int __fd, const void *__buf, size_t __n);
184libc_hidden_proto (__write)
185extern __pid_t __fork (void);
186libc_hidden_proto (__fork)
187extern int __getpagesize (void) __attribute__ ((__const__));
188libc_hidden_proto (__getpagesize)
189extern int __ftruncate (int __fd, __off_t __length) attribute_hidden;
190extern int __ftruncate64 (int __fd, __off64_t __length) attribute_hidden;
191extern int __truncate (const char *path, __off_t __length);
192extern void *__sbrk (intptr_t __delta);
193libc_hidden_proto (__sbrk)
194
195extern int __tcsetpgrp (int fd, __pid_t pgrp);
196libc_hidden_proto (__tcsetpgrp)
197
198/* This variable is set nonzero at startup if the process's effective
199 IDs differ from its real IDs, or it is otherwise indicated that
200 extra security should be used. When this is set the dynamic linker
201 and some functions contained in the C library ignore various
202 environment variables that normally affect them. */
203extern int __libc_enable_secure attribute_relro;
204rtld_hidden_proto (__libc_enable_secure)
205
206
207/* Various internal function. */
208extern void __libc_check_standard_fds (void) attribute_hidden;
209
210
211/* Internal name for fork function. */
212extern __pid_t __libc_fork (void);
213
214/* Suspend the process until a signal arrives.
215 This always returns -1 and sets `errno' to EINTR. */
216extern int __libc_pause (void);
217
218extern int __getlogin_r_loginuid (char *name, size_t namesize)
219 attribute_hidden;
220
221# if IS_IN (rtld)
222# include <dl-unistd.h>
223# endif
224
225# endif
226#endif
227

source code of glibc/include/unistd.h