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Diffstat (limited to 'hurd/hurd.h')
| -rw-r--r-- | hurd/hurd.h | 345 |
1 files changed, 0 insertions, 345 deletions
diff --git a/hurd/hurd.h b/hurd/hurd.h deleted file mode 100644 index 3caa69fbdf..0000000000 --- a/hurd/hurd.h +++ /dev/null @@ -1,345 +0,0 @@ -/* Copyright (C) 1993-2017 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - <http://www.gnu.org/licenses/>. */ - -#ifndef _HURD_H - -#define _HURD_H 1 -#include <features.h> - - -/* Get types, macros, constants and function declarations - for all Mach microkernel interaction. */ -#include <mach.h> -#include <mach/mig_errors.h> - -/* Get types and constants necessary for Hurd interfaces. */ -#include <hurd/hurd_types.h> - -/* Get MiG stub declarations for commonly used Hurd interfaces. */ -#include <hurd/auth.h> -#include <hurd/process.h> -#include <hurd/fs.h> -#include <hurd/io.h> - -/* Get `struct hurd_port' and related definitions implementing lightweight - user references for ports. These are used pervasively throughout the C - library; this is here to avoid putting it in nearly every source file. */ -#include <hurd/port.h> - -#include <errno.h> - -#ifndef _HURD_H_EXTERN_INLINE -#define _HURD_H_EXTERN_INLINE __extern_inline -#endif - -_HURD_H_EXTERN_INLINE int -__hurd_fail (error_t err) -{ - switch (err) - { - case EMACH_SEND_INVALID_DEST: - case EMIG_SERVER_DIED: - /* The server has disappeared! */ - err = (error_t) EIEIO; - break; - - case KERN_NO_SPACE: - err = (error_t) ENOMEM; - break; - - case KERN_INVALID_ARGUMENT: - err = (error_t) EINVAL; - break; - - case 0: - return 0; - - default: - break; - } - - errno = err; - return -1; -} - -/* Basic ports and info, initialized by startup. */ - -extern int _hurd_exec_flags; /* Flags word passed in exec_startup. */ -extern struct hurd_port *_hurd_ports; -extern unsigned int _hurd_nports; -extern mode_t _hurd_umask; -extern sigset_t _hurdsig_traced; - -/* Shorthand macro for internal library code referencing _hurd_ports (see - <hurd/port.h>). */ - -#define __USEPORT(which, expr) \ - HURD_PORT_USE (&_hurd_ports[INIT_PORT_##which], (expr)) - -/* Function version of __USEPORT: calls OPERATE with a send right. */ - -extern error_t _hurd_ports_use (int which, error_t (*operate) (mach_port_t)); - - -/* Base address and size of the initial stack set up by the exec server. - If using cthreads, this stack is deallocated in startup. - Not locked. */ - -extern vm_address_t _hurd_stack_base; -extern vm_size_t _hurd_stack_size; - -/* Initial file descriptor table we were passed at startup. If we are - using a real dtable, these are turned into that and then cleared at - startup. If not, these are never changed after startup. Not locked. */ - -extern mach_port_t *_hurd_init_dtable; -extern mach_msg_type_number_t _hurd_init_dtablesize; - -/* Current process IDs. */ - -extern pid_t _hurd_pid, _hurd_ppid, _hurd_pgrp; -extern int _hurd_orphaned; - -/* This variable is incremented every time the process IDs change. */ -extern unsigned int _hurd_pids_changed_stamp; - -/* This condition is broadcast every time the process IDs change. */ -extern struct condition _hurd_pids_changed_sync; - -/* Unix `data break', for brk and sbrk. - If brk and sbrk are not used, this info will not be initialized or used. */ - - -/* Data break. This is what `sbrk (0)' returns. */ - -extern vm_address_t _hurd_brk; - -/* End of allocated space. This is generally `round_page (_hurd_brk)'. */ - -extern vm_address_t _hurd_data_end; - -/* This mutex locks _hurd_brk and _hurd_data_end. */ - -extern struct mutex _hurd_brk_lock; - -/* Set the data break to NEWBRK; _hurd_brk_lock must - be held, and is released on return. */ - -extern int _hurd_set_brk (vm_address_t newbrk); - -#include <bits/types/FILE.h> - -/* Calls to get and set basic ports. */ - -extern error_t _hurd_ports_get (unsigned int which, mach_port_t *result); -extern error_t _hurd_ports_set (unsigned int which, mach_port_t newport); - -extern process_t getproc (void); -extern file_t getcwdir (void), getcrdir (void); -extern auth_t getauth (void); -extern mach_port_t getcttyid (void); -extern int setproc (process_t); -extern int setcwdir (file_t), setcrdir (file_t); -extern int setcttyid (mach_port_t); - -/* Does reauth with the proc server and fd io servers. */ -extern int __setauth (auth_t), setauth (auth_t); - - -/* Modify a port cell by looking up a directory name. - This verifies that it is a directory and that we have search permission. */ -extern int _hurd_change_directory_port_from_name (struct hurd_port *portcell, - const char *name); -/* Same thing, but using an open file descriptor. - Also verifies that it is a directory and that we have search permission. */ -extern int _hurd_change_directory_port_from_fd (struct hurd_port *portcell, - int fd); - - - -/* Get and set the effective UID set. */ -extern int geteuids (int __n, uid_t *__uidset); -extern int seteuids (int __n, const uid_t *__uidset); - - -/* Split FILE into a directory and a name within the directory. The - directory lookup uses the current root and working directory. If - successful, stores in *NAME a pointer into FILE where the name - within directory begins and returns a port to the directory; - otherwise sets `errno' and returns MACH_PORT_NULL. */ - -extern file_t __file_name_split (const char *file, char **name); -extern file_t file_name_split (const char *file, char **name); - -/* Split DIRECTORY into a parent directory and a name within the directory. - This is the same as file_name_split, but ignores trailing slashes. */ - -extern file_t __directory_name_split (const char *file, char **name); -extern file_t directory_name_split (const char *file, char **name); - -/* Open a port to FILE with the given FLAGS and MODE (see <fcntl.h>). - The file lookup uses the current root and working directory. - Returns a port to the file if successful; otherwise sets `errno' - and returns MACH_PORT_NULL. */ - -extern file_t __file_name_lookup (const char *file, int flags, mode_t mode); -extern file_t file_name_lookup (const char *file, int flags, mode_t mode); - -/* Open a port to FILE with the given FLAGS and MODE (see <fcntl.h>). The - file lookup uses the current root directory, but uses STARTDIR as the - "working directory" for file relative names. Returns a port to the file - if successful; otherwise sets `errno' and returns MACH_PORT_NULL. */ - -extern file_t __file_name_lookup_under (file_t startdir, const char *file, - int flags, mode_t mode); -extern file_t file_name_lookup_under (file_t startdir, const char *file, - int flags, mode_t mode); - - -/* Lookup FILE_NAME and return the node opened with FLAGS & MODE - (see hurd_file_name_lookup for details), but a simple file name (without - any directory prefixes) will be consecutively prefixed with the pathnames - in the `:' separated list PATH until one succeeds in a successful lookup. - If none succeed, then the first error that wasn't ENOENT is returned, or - ENOENT if no other errors were returned. If PREFIXED_NAME is non-NULL, - then if the result is looked up directly, *PREFIXED_NAME is set to NULL, and - if it is looked up using a prefix from PATH, *PREFIXED_NAME is set to - malloc'd storage containing the prefixed name. */ -extern file_t file_name_path_lookup (const char *file_name, const char *path, - int flags, mode_t mode, - char **prefixed_name); - - - -/* Open a file descriptor on a port. FLAGS are as for `open'; flags - affected by io_set_openmodes are not changed by this. If successful, - this consumes a user reference for PORT (which will be deallocated on - close). */ - -extern int openport (io_t port, int flags); - -/* Open a stream on a port. MODE is as for `fopen'. - If successful, this consumes a user reference for PORT - (which will be deallocated on fclose). */ - -extern FILE *fopenport (io_t port, const char *mode); -extern FILE *__fopenport (io_t port, const char *mode); - - -/* Execute a file, replacing TASK's current program image. */ - -extern error_t _hurd_exec (task_t task, - file_t file, - char *const argv[], - char *const envp[]); - - -/* Inform the proc server we have exited with STATUS, and kill the - task thoroughly. This function never returns, no matter what. */ - -extern void _hurd_exit (int status) __attribute__ ((noreturn)); - - -/* Initialize the library data structures from the - ints and ports passed to us by the exec server. - Then vm_deallocate PORTARRAY and INTARRAY. */ - -extern void _hurd_init (int flags, char **argv, - mach_port_t *portarray, size_t portarraysize, - int *intarray, size_t intarraysize); - -/* Do startup handshaking with the proc server, and initialize library data - structures that require proc server interaction. This includes - initializing signals; see _hurdsig_init in <hurd/signal.h>. */ - -extern void _hurd_proc_init (char **argv, - const int *intarray, size_t intarraysize); - - -/* Return the socket server for sockaddr domain DOMAIN. If DEAD is - nonzero, remove the old cached port and always do a fresh lookup. - - It is assumed that a socket server will stay alive during a complex socket - operation involving several RPCs. But a socket server may die during - long idle periods between socket operations. Callers should first pass - zero for DEAD; if the first socket RPC tried on the returned port fails - with MACH_SEND_INVALID_DEST or MIG_SERVER_DIED (indicating the server - went away), the caller should call _hurd_socket_server again with DEAD - nonzero and retry the RPC on the new socket server port. */ - -extern socket_t _hurd_socket_server (int domain, int dead); - -/* Send a `sig_post' RPC to process number PID. If PID is zero, - send the message to all processes in the current process's process group. - If PID is < -1, send SIG to all processes in process group - PID. - SIG and REFPORT are passed along in the request message. */ - -extern error_t _hurd_sig_post (pid_t pid, int sig, mach_port_t refport); -extern error_t hurd_sig_post (pid_t pid, int sig, mach_port_t refport); - -/* Fetch the host privileged port and device master port from the proc - server. They are fetched only once and then cached in the - variables below. A special program that gets them from somewhere - other than the proc server (such as a bootstrap filesystem) can set - these variables to install the ports. */ - -extern kern_return_t __get_privileged_ports (mach_port_t *host_priv_ptr, - device_t *device_master_ptr); -extern kern_return_t get_privileged_ports (mach_port_t *host_priv_ptr, - device_t *device_master_ptr); -extern mach_port_t _hurd_host_priv, _hurd_device_master; - -/* Return the PID of the task whose control port is TASK. - On error, sets `errno' and returns -1. */ - -extern pid_t __task2pid (task_t task), task2pid (task_t task); - -/* Return the task control port of process PID. - On error, sets `errno' and returns MACH_PORT_NULL. */ - -extern task_t __pid2task (pid_t pid), pid2task (pid_t pid); - -/* Return the current thread's thread port. This is a cheap operation (no - system call), but it relies on Hurd signal state being set up. */ -extern thread_t hurd_thread_self (void); - - -/* Cancel pending operations on THREAD. If it is doing an interruptible RPC, - that RPC will now return EINTR; otherwise, the "cancelled" flag will be - set, causing the next `hurd_check_cancel' call to return nonzero or the - next interruptible RPC to return EINTR (whichever is called first). */ -extern error_t hurd_thread_cancel (thread_t thread); - -/* Test and clear the calling thread's "cancelled" flag. */ -extern int hurd_check_cancel (void); - - -/* Return the io server port for file descriptor FD. - This adds a Mach user reference to the returned port. - On error, sets `errno' and returns MACH_PORT_NULL. */ - -extern io_t __getdport (int fd), getdport (int fd); - - -#include <stdarg.h> - -/* Write formatted output to PORT, a Mach port supporting the i/o protocol, - according to the format string FORMAT, using the argument list in ARG. */ -int vpprintf (io_t port, const char *format, va_list arg); - - -#endif /* hurd.h */ |