include/unistd.h

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