include/unistd.h

   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
  10 libc_hidden_proto (_exit, __noreturn__)
  11 #  ifndef NO_RTLD_HIDDEN
  12 rtld_hidden_proto (_exit, __noreturn__)
  13 #  endif
  14 libc_hidden_proto (alarm)
  15 extern size_t __confstr (int name, char *buf, size_t len);
  16 libc_hidden_proto (__confstr)
  17 libc_hidden_proto (confstr)
  18 libc_hidden_proto (execl)
  19 libc_hidden_proto (execle)
  20 libc_hidden_proto (execlp)
  21 libc_hidden_proto (execvp)
  22 libc_hidden_proto (getpid)
  23 libc_hidden_proto (getsid)
  24 libc_hidden_proto (getdomainname)
  25 extern __typeof (getlogin_r) __getlogin_r  __nonnull ((1));
  26 libc_hidden_proto (__getlogin_r)
  27 libc_hidden_proto (getlogin_r)
  28 libc_hidden_proto (seteuid)
  29 libc_hidden_proto (setegid)
  30 libc_hidden_proto (tcgetpgrp)
  31 libc_hidden_proto (readlinkat)
  32 libc_hidden_proto (fsync)
  33 libc_hidden_proto (fdatasync)
  34
  35 libc_hidden_proto (__read_chk)
  36 libc_hidden_proto (__getdomainname_chk)
  37 libc_hidden_proto (__getlogin_r_chk)
  38
  39 /* Now define the internal interfaces.  */
  40 extern int __access (const char *__name, int __type);
  41 libc_hidden_proto (__access)
  42 extern int __euidaccess (const char *__name, int __type);
  43 extern int __faccessat (int __fd, const char *__file, int __type, int __flag);
  44 extern int __faccessat_noerrno (int __fd, const char *__file, int __type,
  45                                 int __flag);
  46 extern __off64_t __lseek64 (int __fd, __off64_t __offset, int __whence);
  47 extern __off_t __lseek (int __fd, __off_t __offset, int __whence);
  48 libc_hidden_proto (__lseek)
  49 extern __off_t __libc_lseek (int __fd, __off_t __offset, int __whence);
  50 extern __off64_t __libc_lseek64 (int __fd, __off64_t __offset, int __whence);
  51 extern ssize_t __pread (int __fd, void *__buf, size_t __nbytes,
  52                         __off_t __offset);
  53 libc_hidden_proto (__pread);
  54 extern ssize_t __libc_pread (int __fd, void *__buf, size_t __nbytes,
  55                              __off_t __offset);
  56 extern ssize_t __pread64 (int __fd, void *__buf, size_t __nbytes,
  57                           __off64_t __offset);
  58 libc_hidden_proto (__pread64);
  59 extern ssize_t __libc_pread64 (int __fd, void *__buf, size_t __nbytes,
  60                                __off64_t __offset);
  61 extern ssize_t __pwrite (int __fd, const void *__buf, size_t __n,
  62                          __off_t __offset);
  63 libc_hidden_proto (__pwrite)
  64 extern ssize_t __libc_pwrite (int __fd, const void *__buf, size_t __n,
  65                               __off_t __offset);
  66 extern ssize_t __pwrite64 (int __fd, const void *__buf, size_t __n,
  67                            __off64_t __offset);
  68 libc_hidden_proto (__pwrite64)
  69 extern ssize_t __libc_pwrite64 (int __fd, const void *__buf, size_t __n,
  70                                 __off64_t __offset);
  71 extern ssize_t __libc_read (int __fd, void *__buf, size_t __n);
  72 libc_hidden_proto (__libc_read)
  73 libc_hidden_proto (read)
  74 extern ssize_t __libc_write (int __fd, const void *__buf, size_t __n);
  75 libc_hidden_proto (__libc_write)
  76 libc_hidden_proto (write)
  77 extern int __pipe (int __pipedes[2]);
  78 libc_hidden_proto (__pipe)
  79 extern int __pipe2 (int __pipedes[2], int __flags) attribute_hidden;
  80 extern unsigned int __sleep (unsigned int __seconds) attribute_hidden;
  81 extern int __chown (const char *__file,
  82                     __uid_t __owner, __gid_t __group);
  83 libc_hidden_proto (__chown)
  84 extern int __fchown (int __fd,
  85                      __uid_t __owner, __gid_t __group);
  86 extern int __fchownat (int __fd, const char *__file, uid_t __owner, gid_t __group, int __flag);
  87 extern int __lchown (const char *__file, __uid_t __owner,
  88                      __gid_t __group);
  89 extern int __chdir (const char *__path) attribute_hidden;
  90 extern int __fchdir (int __fd) attribute_hidden;
  91 extern char *__getcwd (char *__buf, size_t __size);
  92 libc_hidden_proto (__getcwd)
  93 extern int __rmdir (const char *__path) attribute_hidden;
  94 extern int __execvpe (const char *file, char *const argv[],
  95                       char *const envp[]) attribute_hidden;
  96 extern 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
 105 char *__canonicalize_directory_name_internal (const char *__thisdir,
 106                                               char *__buf,
 107                                               size_t __size) attribute_hidden;
 108
 109 extern int __dup (int __fd);
 110 libc_hidden_proto (__dup)
 111 extern int __dup2 (int __fd, int __fd2);
 112 libc_hidden_proto (__dup2)
 113 extern int __dup3 (int __fd, int __fd2, int flags);
 114 libc_hidden_proto (__dup3)
 115 extern int __execve (const char *__path, char *const __argv[],
 116                      char *const __envp[]) attribute_hidden;
 117 extern int __execveat (int dirfd, const char *__path, char *const __argv[],
 118                        char *const __envp[], int flags) attribute_hidden;
 119 extern long int __pathconf (const char *__path, int __name);
 120 extern long int __fpathconf (int __fd, int __name);
 121 extern long int __sysconf (int __name);
 122 libc_hidden_proto (__sysconf)
 123 extern __pid_t __getpid (void);
 124 libc_hidden_proto (__getpid)
 125 extern __pid_t __getppid (void);
 126 extern __pid_t __setsid (void) attribute_hidden;
 127 extern __uid_t __getuid (void) attribute_hidden;
 128 extern __uid_t __geteuid (void) attribute_hidden;
 129 extern __gid_t __getgid (void) attribute_hidden;
 130 extern __gid_t __getegid (void) attribute_hidden;
 131 extern int __getgroups (int __size, __gid_t __list[]) attribute_hidden;
 132 libc_hidden_proto (__getpgid)
 133 extern int __group_member (__gid_t __gid) attribute_hidden;
 134 extern int __setuid (__uid_t __uid);
 135 extern int __setreuid (__uid_t __ruid, __uid_t __euid);
 136 extern int __setgid (__gid_t __gid);
 137 extern int __setpgid (__pid_t __pid, __pid_t __pgid);
 138 libc_hidden_proto (__setpgid)
 139 extern int __setregid (__gid_t __rgid, __gid_t __egid);
 140 extern int __getresuid (__uid_t *__ruid, __uid_t *__euid, __uid_t *__suid);
 141 extern int __getresgid (__gid_t *__rgid, __gid_t *__egid, __gid_t *__sgid);
 142 extern int __setresuid (__uid_t __ruid, __uid_t __euid, __uid_t __suid);
 143 extern int __setresgid (__gid_t __rgid, __gid_t __egid, __gid_t __sgid);
 144 libc_hidden_proto (__getresuid)
 145 libc_hidden_proto (__getresgid)
 146 libc_hidden_proto (__setresuid)
 147 libc_hidden_proto (__setresgid)
 148 extern __pid_t __vfork (void);
 149 libc_hidden_proto (__vfork)
 150 extern int __ttyname_r (int __fd, char *__buf, size_t __buflen);
 151 libc_hidden_proto (__ttyname_r)
 152 extern __pid_t _Fork (void);
 153 libc_hidden_proto (_Fork);
 154 extern int __isatty (int __fd) attribute_hidden;
 155 extern int __link (const char *__from, const char *__to);
 156 extern int __symlink (const char *__from, const char *__to);
 157 extern int __symlinkat (const char *__from, int __fd, const char *__to);
 158 extern ssize_t __readlink (const char *__path, char *__buf, size_t __len)
 159      attribute_hidden;
 160 extern ssize_t __readlinkat (int __fd, const char *__file_name, char *__buf, size_t __len);
 161 extern int __unlink (const char *__name) attribute_hidden;
 162 extern int __unlinkat (int __fd, const char *__name, int __flag);
 163 extern int __gethostname (char *__name, size_t __len) attribute_hidden;
 164 extern int __revoke (const char *__file);
 165 extern int __profil (unsigned short int *__sample_buffer, size_t __size,
 166                      size_t __offset, unsigned int __scale)
 167      attribute_hidden;
 168 extern int __getdtablesize (void) attribute_hidden;
 169 extern int __brk (void *__addr) attribute_hidden;
 170 extern int __close (int __fd);
 171 libc_hidden_proto (__close)
 172 extern int __libc_close (int __fd);
 173 #  if __ASSUME_CLOSE_RANGE
 174 static inline _Bool __closefrom_fallback (int __lowfd, _Bool dirfd_fallback)
 175 {
 176   return false;
 177 }
 178 #  else
 179 extern _Bool __closefrom_fallback (int __lowfd, _Bool) attribute_hidden;
 180 #  endif
 181 extern ssize_t __read (int __fd, void *__buf, size_t __nbytes);
 182 libc_hidden_proto (__read)
 183 extern ssize_t __write (int __fd, const void *__buf, size_t __n);
 184 libc_hidden_proto (__write)
 185 extern __pid_t __fork (void);
 186 libc_hidden_proto (__fork)
 187 extern int __getpagesize (void) __attribute__ ((__const__));
 188 libc_hidden_proto (__getpagesize)
 189 extern int __ftruncate (int __fd, __off_t __length) attribute_hidden;
 190 extern int __ftruncate64 (int __fd, __off64_t __length) attribute_hidden;
 191 extern int __truncate (const char *path, __off_t __length);
 192 extern void *__sbrk (intptr_t __delta);
 193 libc_hidden_proto (__sbrk)
 194
 195 extern int __tcsetpgrp (int fd, __pid_t pgrp);
 196 libc_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.  */
 203 extern int __libc_enable_secure attribute_relro;
 204 rtld_hidden_proto (__libc_enable_secure)
 205
 206
 207 /* Various internal function.  */
 208 extern void __libc_check_standard_fds (void) attribute_hidden;
 209
 210
 211 /* Internal name for fork function.  */
 212 extern __pid_t __libc_fork (void);
 213
 214 /* Suspend the process until a signal arrives.
 215    This always returns -1 and sets `errno' to EINTR.  */
 216 extern int __libc_pause (void);
 217
 218 extern 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