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