include/unistd.h

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