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* All files with FSF copyright notices: Update copyright dates using scripts/update-copyrights. * locale/programs/charmap-kw.h: Regenerated. * locale/programs/locfile-kw.h: Likewise.
195 lines
7.8 KiB
C
195 lines
7.8 KiB
C
/* Declarations of file name translation functions for the GNU Hurd.
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Copyright (C) 1995-2019 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#ifndef _HURD_LOOKUP_H
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#define _HURD_LOOKUP_H 1
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#include <errno.h>
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#include <bits/types/error_t.h>
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#include <hurd/hurd_types.h>
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/* These functions all take two callback functions as the first two arguments.
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The first callback function USE_INIT_PORT is called as follows:
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error_t use_init_port (int which, error_t (*operate) (mach_port_t));
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WHICH is nonnegative value less than INIT_PORT_MAX, indicating which
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init port is required. The callback function should call *OPERATE
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with a send right to the appropriate init port. No user reference
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is consumed; the right will only be used after *OPERATE returns if
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*OPERATE has added its own user reference.
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LOOKUP is a function to do the actual filesystem lookup. It is passed the
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same arguments that the dir_lookup rpc accepts, and if 0, __dir_lookup is
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used.
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The second callback function GET_DTABLE_PORT should behave like `getdport'.
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All these functions return zero on success or an error code on failure. */
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/* Open a port to FILE with the given FLAGS and MODE (see <fcntl.h>). If
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successful, returns zero and store the port to FILE in *PORT; otherwise
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returns an error code. */
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error_t __hurd_file_name_lookup (error_t (*use_init_port)
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(int which,
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error_t (*operate) (mach_port_t)),
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file_t (*get_dtable_port) (int fd),
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error_t (*lookup)
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(file_t dir, const char *name, int flags, mode_t mode,
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retry_type *do_retry, string_t retry_name,
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mach_port_t *result),
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const char *file_name,
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int flags, mode_t mode,
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file_t *result);
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error_t hurd_file_name_lookup (error_t (*use_init_port)
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(int which,
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error_t (*operate) (mach_port_t)),
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file_t (*get_dtable_port) (int fd),
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error_t (*lookup)
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(file_t dir, const char *name, int flags, mode_t mode,
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retry_type *do_retry, string_t retry_name,
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mach_port_t *result),
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const char *file_name,
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int flags, mode_t mode,
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file_t *result);
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/* Split FILE into a directory and a name within the directory. Look up a
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port for the directory and store it in *DIR; store in *NAME a pointer
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into FILE where the name within directory begins. */
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error_t __hurd_file_name_split (error_t (*use_init_port)
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(int which,
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error_t (*operate) (mach_port_t)),
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file_t (*get_dtable_port) (int fd),
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error_t (*lookup) (file_t dir, const char *name,
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int flags, mode_t mode,
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retry_type *do_retry, string_t retry_name,
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mach_port_t *result),
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const char *file_name,
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file_t *dir, char **name);
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error_t hurd_file_name_split (error_t (*use_init_port)
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(int which,
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error_t (*operate) (mach_port_t)),
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file_t (*get_dtable_port) (int fd),
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error_t (*lookup) (file_t dir, const char *name,
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int flags, mode_t mode,
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retry_type *do_retry, string_t retry_name,
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mach_port_t *result),
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const char *file_name,
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file_t *dir, char **name);
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/* Split DIRECTORY into a parent directory and a name within the directory.
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This is the same as hurd_file_name_split, but ignores trailing slashes. */
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error_t __hurd_directory_name_split (error_t (*use_init_port)
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(int which,
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error_t (*operate) (mach_port_t)),
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file_t (*get_dtable_port) (int fd),
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error_t (*lookup) (file_t dir, const char *name,
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int flags, mode_t mode,
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retry_type *do_retry, string_t retry_name,
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mach_port_t *result),
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const char *directory_name,
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file_t *dir, char **name);
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error_t hurd_directory_name_split (error_t (*use_init_port)
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(int which,
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error_t (*operate) (mach_port_t)),
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file_t (*get_dtable_port) (int fd),
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error_t (*lookup) (file_t dir, const char *name,
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int flags, mode_t mode,
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retry_type *do_retry, string_t retry_name,
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mach_port_t *result),
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const char *directory_name,
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file_t *dir, char **name);
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/* Process the values returned by `dir_lookup' et al, and loop doing
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`dir_lookup' calls until one returns FS_RETRY_NONE. The arguments
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should be those just passed to and/or returned from `dir_lookup',
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`fsys_getroot', or `file_invoke_translator'. This function consumes the
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reference in *RESULT even if it returns an error. */
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error_t __hurd_file_name_lookup_retry (error_t (*use_init_port)
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(int which,
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error_t (*operate) (mach_port_t)),
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file_t (*get_dtable_port) (int fd),
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error_t (*lookup)
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(file_t dir, const char *name,
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int flags, mode_t mode,
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retry_type *do_retry,
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string_t retry_name,
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mach_port_t *result),
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enum retry_type doretry,
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char retryname[1024],
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int flags, mode_t mode,
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file_t *result);
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error_t hurd_file_name_lookup_retry (error_t (*use_init_port)
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(int which,
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error_t (*operate) (mach_port_t)),
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file_t (*get_dtable_port) (int fd),
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error_t (*lookup)
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(file_t dir, const char *name,
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int flags, mode_t mode,
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retry_type *do_retry,
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string_t retry_name,
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mach_port_t *result),
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enum retry_type doretry,
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char retryname[1024],
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int flags, mode_t mode,
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file_t *result);
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/* If FILE_NAME contains a '/', or PATH is NULL, call FUN with FILE_NAME, and
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return the result (if PREFIXED_NAME is non-NULL, setting *PREFIXED_NAME to
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NULL). Otherwise, call FUN repeatedly with FILE_NAME prefixed with each
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successive `:' separated element of PATH, returning whenever FUN returns
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0 (if PREFIXED_NAME is non-NULL, setting *PREFIXED_NAME to the resulting
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prefixed path). If FUN never returns 0, return the first non-ENOENT
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return value, or ENOENT if there is none. */
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error_t file_name_path_scan (const char *file_name, const char *path,
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error_t (*fun)(const char *name),
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char **prefixed_name);
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/* Lookup FILE_NAME and return the node opened with FLAGS & MODE in result
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(see hurd_file_name_lookup for details), but a simple filename (without
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any directory prefixes) will be consecutively prefixed with the pathnames
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in the `:' separated list PATH until one succeeds in a successful lookup.
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If none succeed, then the first error that wasn't ENOENT is returned, or
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ENOENT if no other errors were returned. If PREFIXED_NAME is non-NULL,
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then if RESULT is looked up directly, *PREFIXED_NAME is set to NULL, and
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if it is looked up using a prefix from PATH, *PREFIXED_NAME is set to
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malloced storage containing the prefixed name. */
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error_t hurd_file_name_path_lookup (error_t (*use_init_port)
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(int which,
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error_t (*operate) (mach_port_t)),
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file_t (*get_dtable_port) (int fd),
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error_t (*lookup)
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(file_t dir, const char *name,
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int flags, mode_t mode,
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retry_type *do_retry,
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string_t retry_name,
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mach_port_t *result),
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const char *file_name, const char *path,
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int flags, mode_t mode,
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file_t *result, char **prefixed_name);
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#endif /* hurd/lookup.h */
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