1996-01-28 23:47:31 +01:00
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/* Copyright (C) 1992, 1993, 1994, 1995, 1996 Free Software Foundation, Inc.
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1995-02-18 02:27:10 +01:00
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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 Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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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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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the GNU C Library; see the file COPYING.LIB. If
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not, write to the Free Software Foundation, Inc., 675 Mass Ave,
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Cambridge, MA 02139, USA. */
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#include <hurd.h>
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1995-10-16 03:51:06 +01:00
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#include <hurd/lookup.h>
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1995-02-18 02:27:10 +01:00
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#include <string.h>
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#include <limits.h>
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#include <fcntl.h>
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1995-10-18 06:47:53 +01:00
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#include "stdio-common/_itoa.h"
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1995-02-18 02:27:10 +01:00
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#include <hurd/term.h>
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/* Translate the error from dir_lookup into the error the user sees. */
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static inline error_t
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lookup_error (error_t error)
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{
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switch (error)
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{
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case EOPNOTSUPP:
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case MIG_BAD_ID:
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/* These indicate that the server does not understand dir_lookup
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at all. If it were a directory, it would, by definition. */
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return ENOTDIR;
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default:
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return error;
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}
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}
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error_t
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1995-10-16 03:51:06 +01:00
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__hurd_file_name_lookup (error_t (*use_init_port)
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(int which, error_t (*operate) (file_t)),
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file_t (*get_dtable_port) (int fd),
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1995-02-18 02:27:10 +01:00
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const char *file_name, int flags, mode_t mode,
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file_t *result)
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{
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error_t err;
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enum retry_type doretry;
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char retryname[1024]; /* XXX string_t LOSES! */
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1995-10-16 03:51:06 +01:00
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error_t lookup (mach_port_t startdir)
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{
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while (file_name[0] == '/')
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file_name++;
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1995-02-18 02:27:10 +01:00
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1995-10-16 03:51:06 +01:00
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return lookup_error (__dir_lookup (startdir, file_name, flags, mode,
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&doretry, retryname, result));
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}
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1995-02-18 02:27:10 +01:00
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1995-10-16 03:51:06 +01:00
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err = (*use_init_port) (file_name[0] == '/'
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? INIT_PORT_CRDIR : INIT_PORT_CWDIR,
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&lookup);
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if (! err)
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err = __hurd_file_name_lookup_retry (use_init_port, get_dtable_port,
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doretry, retryname, flags, mode,
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result);
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1995-02-18 02:27:10 +01:00
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1995-10-16 03:51:06 +01:00
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return err;
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1995-02-18 02:27:10 +01:00
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}
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weak_alias (__hurd_file_name_lookup, hurd_file_name_lookup)
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error_t
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1995-10-16 03:51:06 +01:00
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__hurd_file_name_lookup_retry (error_t (*use_init_port)
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(int which, error_t (*operate) (file_t)),
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file_t (*get_dtable_port) (int fd),
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1995-02-18 02:27:10 +01:00
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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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{
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error_t err;
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char *file_name;
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int nloops;
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1995-10-16 03:51:06 +01:00
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error_t lookup (file_t startdir)
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{
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while (file_name[0] == '/')
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file_name++;
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return lookup_error (__dir_lookup (startdir, file_name, flags, mode,
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&doretry, retryname, result));
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}
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error_t reauthenticate (file_t unauth)
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{
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error_t err;
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mach_port_t ref = __mach_reply_port ();
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error_t reauth (auth_t auth)
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{
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return __auth_user_authenticate (auth, unauth, ref,
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MACH_MSG_TYPE_MAKE_SEND,
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result);
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}
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err = __io_reauthenticate (unauth, ref, MACH_MSG_TYPE_MAKE_SEND);
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if (! err)
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err = (*use_init_port) (INIT_PORT_AUTH, &reauth);
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__mach_port_destroy (__mach_task_self (), ref);
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__mach_port_deallocate (__mach_task_self (), unauth);
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return err;
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}
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1995-02-18 02:27:10 +01:00
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nloops = 0;
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err = 0;
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1995-10-16 03:51:06 +01:00
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do
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1995-02-18 02:27:10 +01:00
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{
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1995-10-16 03:51:06 +01:00
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file_t startdir = MACH_PORT_NULL;
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int dirport = INIT_PORT_CWDIR;
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1995-02-18 02:27:10 +01:00
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switch (doretry)
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{
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case FS_RETRY_REAUTH:
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1995-10-16 03:51:06 +01:00
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if (err = reauthenticate (*result))
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1995-02-18 02:27:10 +01:00
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return err;
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/* Fall through. */
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case FS_RETRY_NORMAL:
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#ifdef SYMLOOP_MAX
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if (nloops++ >= SYMLOOP_MAX)
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return ELOOP;
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#endif
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/* An empty RETRYNAME indicates we have the final port. */
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if (retryname[0] == '\0')
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{
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/* We got a successful translation. Now apply any open-time
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action flags we were passed. */
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if (flags & O_EXLOCK)
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; /* XXX */
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if (!err && (flags & O_SHLOCK))
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; /* XXX */
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if (!err && (flags & O_TRUNC))
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1995-09-18 11:00:07 +02:00
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err = __file_set_size (*result, 0);
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1995-02-18 02:27:10 +01:00
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if (err)
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__mach_port_deallocate (__mach_task_self (), *result);
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return err;
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}
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startdir = *result;
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file_name = retryname;
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break;
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case FS_RETRY_MAGICAL:
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switch (retryname[0])
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{
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case '/':
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1995-10-16 03:51:06 +01:00
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dirport = INIT_PORT_CRDIR;
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1995-02-18 02:27:10 +01:00
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if (*result != MACH_PORT_NULL)
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__mach_port_deallocate (__mach_task_self (), *result);
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file_name = &retryname[1];
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break;
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case 'f':
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if (retryname[1] == 'd' && retryname[2] == '/')
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{
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int fd;
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char *end;
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int save = errno;
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errno = 0;
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1995-10-18 08:36:16 +01:00
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fd = (int) strtol (&retryname[3], &end, 10);
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1995-02-18 02:27:10 +01:00
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if (end == NULL || errno || /* Malformed number. */
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/* Check for excess text after the number. A slash
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is valid; it ends the component. Anything else
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does not name a numeric file descriptor. */
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(*end != '/' && *end != '\0'))
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{
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errno = save;
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return ENOENT;
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}
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1995-10-16 03:51:06 +01:00
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if (! get_dtable_port)
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err = EGRATUITOUS;
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else
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1995-02-18 02:27:10 +01:00
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{
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1995-10-16 03:51:06 +01:00
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*result = (*get_dtable_port) (fd);
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if (*result == MACH_PORT_NULL)
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{
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/* If the name was a proper number, but the file
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descriptor does not exist, we return EBADF instead
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of ENOENT. */
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err = errno;
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errno = save;
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}
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1995-02-18 02:27:10 +01:00
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}
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errno = save;
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1995-10-16 03:51:06 +01:00
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if (err)
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return err;
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1995-02-18 02:27:10 +01:00
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if (*end == '\0')
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return 0;
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else
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{
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/* Do a normal retry on the remaining components. */
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startdir = *result;
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file_name = end + 1; /* Skip the slash. */
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break;
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}
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}
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else
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goto bad_magic;
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break;
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case 'm':
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if (retryname[1] == 'a' && retryname[2] == 'c' &&
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retryname[3] == 'h' && retryname[4] == 't' &&
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retryname[5] == 'y' && retryname[6] == 'p' &&
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retryname[7] == 'e')
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{
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error_t err;
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struct host_basic_info hostinfo;
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mach_msg_type_number_t hostinfocnt = HOST_BASIC_INFO_COUNT;
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char *p;
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1995-10-16 03:51:06 +01:00
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/* XXX want client's host */
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1995-02-18 02:27:10 +01:00
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if (err = __host_info (__mach_host_self (), HOST_BASIC_INFO,
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(natural_t *) &hostinfo,
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&hostinfocnt))
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return err;
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if (hostinfocnt != HOST_BASIC_INFO_COUNT)
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return EGRATUITOUS;
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p = _itoa (hostinfo.cpu_subtype, &retryname[8], 10, 0);
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*--p = '/';
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p = _itoa (hostinfo.cpu_type, &retryname[8], 10, 0);
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if (p < retryname)
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abort (); /* XXX write this right if this ever happens */
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if (p > retryname)
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strcpy (retryname, p);
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startdir = *result;
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}
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else
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goto bad_magic;
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break;
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case 't':
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if (retryname[1] == 't' && retryname[2] == 'y')
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switch (retryname[3])
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{
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error_t opentty (file_t *result)
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{
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error_t err;
|
1995-10-16 03:51:06 +01:00
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error_t ctty_open (file_t port)
|
1995-02-18 02:27:10 +01:00
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{
|
Fri Dec 8 13:04:51 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
* locale/error.c, locale/error.h: Files removed.
* locale/Makefile (distribute): Remove error.h.
(lib-modules): Remove error.
* hurd/hurdlookup.c (__hurd_file_name_lookup_retry): For "tty"
magic, return ENXIO if no ctty.
* sysdeps/mach/hurd/mmap.c: For MAP_FIXED, deallocate a previous
mapping if vm_map fails for that reason.
* posix/glob.c: Implement new options GLOB_ALTDIRFUNC, GLOB_BRACE,
GLOB_TILDE, GLOB_NOMAGIC.
(glob): Use stat instead of lstat to determine directoriness.
* posix/glob.h (GLOB_ALTDIRFUNC, GLOB_BRACE, GLOB_NOMAGIC, GLOB_TILDE):
New flag bits.
(__GLOB_FLAGS): Include them.
(glob_t): New members gl_closedir, gl_readdir, gl_opendir, gl_lstat,
gl_stat.
* elf/elf.h (ET_NUM, SHT_NUM, STB_NUM, STT_NUM, PT_NUM): New macros.
* sysdeps/unix/sysv/linux/sys/mman.h: Include <linux/mman.h> to
define all the bit values.
(MAP_*, MCL_*): Macros removed.
1995-12-09 11:00:22 +01:00
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if (port == MACH_PORT_NULL)
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return ENXIO; /* No controlling terminal. */
|
1995-10-16 03:51:06 +01:00
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return __termctty_open_terminal (port,
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flags,
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result);
|
1995-02-18 02:27:10 +01:00
|
|
|
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}
|
1995-10-16 03:51:06 +01:00
|
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err = (*use_init_port) (INIT_PORT_CTTYID, &ctty_open);
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if (! err)
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err = reauthenticate (*result);
|
1995-02-18 02:27:10 +01:00
|
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|
return err;
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}
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case '\0':
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return opentty (result);
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case '/':
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if (err = opentty (&startdir))
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return err;
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strcpy (retryname, &retryname[4]);
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break;
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default:
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goto bad_magic;
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}
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else
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goto bad_magic;
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break;
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default:
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bad_magic:
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return EGRATUITOUS;
|
|
|
|
|
}
|
Fri Dec 8 13:04:51 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
* locale/error.c, locale/error.h: Files removed.
* locale/Makefile (distribute): Remove error.h.
(lib-modules): Remove error.
* hurd/hurdlookup.c (__hurd_file_name_lookup_retry): For "tty"
magic, return ENXIO if no ctty.
* sysdeps/mach/hurd/mmap.c: For MAP_FIXED, deallocate a previous
mapping if vm_map fails for that reason.
* posix/glob.c: Implement new options GLOB_ALTDIRFUNC, GLOB_BRACE,
GLOB_TILDE, GLOB_NOMAGIC.
(glob): Use stat instead of lstat to determine directoriness.
* posix/glob.h (GLOB_ALTDIRFUNC, GLOB_BRACE, GLOB_NOMAGIC, GLOB_TILDE):
New flag bits.
(__GLOB_FLAGS): Include them.
(glob_t): New members gl_closedir, gl_readdir, gl_opendir, gl_lstat,
gl_stat.
* elf/elf.h (ET_NUM, SHT_NUM, STB_NUM, STT_NUM, PT_NUM): New macros.
* sysdeps/unix/sysv/linux/sys/mman.h: Include <linux/mman.h> to
define all the bit values.
(MAP_*, MCL_*): Macros removed.
1995-12-09 11:00:22 +01:00
|
|
|
|
break;
|
1995-02-18 02:27:10 +01:00
|
|
|
|
|
|
|
|
|
default:
|
|
|
|
|
return EGRATUITOUS;
|
|
|
|
|
}
|
|
|
|
|
|
1995-10-16 03:51:06 +01:00
|
|
|
|
if (startdir != MACH_PORT_NULL)
|
|
|
|
|
{
|
|
|
|
|
err = lookup (startdir);
|
|
|
|
|
__mach_port_deallocate (__mach_task_self (), startdir);
|
|
|
|
|
startdir = MACH_PORT_NULL;
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
err = (*use_init_port) (dirport, &lookup);
|
|
|
|
|
} while (! err);
|
|
|
|
|
|
|
|
|
|
return err;
|
1995-02-18 02:27:10 +01:00
|
|
|
|
}
|
|
|
|
|
weak_alias (__hurd_file_name_lookup_retry, hurd_file_name_lookup_retry)
|
|
|
|
|
|
|
|
|
|
error_t
|
1995-10-16 03:51:06 +01:00
|
|
|
|
__hurd_file_name_split (error_t (*use_init_port)
|
|
|
|
|
(int which, error_t (*operate) (file_t)),
|
|
|
|
|
file_t (*get_dtable_port) (int fd),
|
1995-02-18 02:27:10 +01:00
|
|
|
|
const char *file_name,
|
|
|
|
|
file_t *dir, char **name)
|
|
|
|
|
{
|
1995-10-16 03:51:06 +01:00
|
|
|
|
error_t addref (file_t crdir)
|
|
|
|
|
{
|
|
|
|
|
*dir = crdir;
|
Fri Dec 8 13:04:51 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
* locale/error.c, locale/error.h: Files removed.
* locale/Makefile (distribute): Remove error.h.
(lib-modules): Remove error.
* hurd/hurdlookup.c (__hurd_file_name_lookup_retry): For "tty"
magic, return ENXIO if no ctty.
* sysdeps/mach/hurd/mmap.c: For MAP_FIXED, deallocate a previous
mapping if vm_map fails for that reason.
* posix/glob.c: Implement new options GLOB_ALTDIRFUNC, GLOB_BRACE,
GLOB_TILDE, GLOB_NOMAGIC.
(glob): Use stat instead of lstat to determine directoriness.
* posix/glob.h (GLOB_ALTDIRFUNC, GLOB_BRACE, GLOB_NOMAGIC, GLOB_TILDE):
New flag bits.
(__GLOB_FLAGS): Include them.
(glob_t): New members gl_closedir, gl_readdir, gl_opendir, gl_lstat,
gl_stat.
* elf/elf.h (ET_NUM, SHT_NUM, STB_NUM, STT_NUM, PT_NUM): New macros.
* sysdeps/unix/sysv/linux/sys/mman.h: Include <linux/mman.h> to
define all the bit values.
(MAP_*, MCL_*): Macros removed.
1995-12-09 11:00:22 +01:00
|
|
|
|
return __mach_port_mod_refs (__mach_task_self (),
|
1995-10-16 03:51:06 +01:00
|
|
|
|
crdir, MACH_PORT_RIGHT_SEND, +1);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
const char *lastslash = strrchr (file_name, '/');
|
1995-02-18 02:27:10 +01:00
|
|
|
|
|
|
|
|
|
if (lastslash != NULL)
|
|
|
|
|
{
|
|
|
|
|
if (lastslash == file_name)
|
|
|
|
|
{
|
|
|
|
|
/* "/foobar" => crdir + "foobar". */
|
|
|
|
|
*name = (char *) file_name + 1;
|
1995-10-16 03:51:06 +01:00
|
|
|
|
return (*use_init_port) (INIT_PORT_CRDIR, &addref);
|
1995-02-18 02:27:10 +01:00
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
/* "/dir1/dir2/.../file". */
|
|
|
|
|
char dirname[lastslash - file_name + 1];
|
|
|
|
|
memcpy (dirname, file_name, lastslash - file_name);
|
|
|
|
|
dirname[lastslash - file_name] = '\0';
|
|
|
|
|
*name = (char *) lastslash + 1;
|
1995-10-16 03:51:06 +01:00
|
|
|
|
return __hurd_file_name_lookup (use_init_port, get_dtable_port,
|
|
|
|
|
dirname, 0, 0, dir);
|
1995-02-18 02:27:10 +01:00
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
/* "foobar" => cwdir + "foobar". */
|
|
|
|
|
*name = (char *) file_name;
|
1995-10-16 03:51:06 +01:00
|
|
|
|
return (*use_init_port) (INIT_PORT_CWDIR, &addref);
|
1995-02-18 02:27:10 +01:00
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
weak_alias (__hurd_file_name_split, hurd_file_name_split)
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
file_t
|
|
|
|
|
__file_name_lookup (const char *file_name, int flags, mode_t mode)
|
|
|
|
|
{
|
|
|
|
|
error_t err;
|
1995-10-16 03:51:06 +01:00
|
|
|
|
file_t result;
|
1995-02-18 02:27:10 +01:00
|
|
|
|
|
1995-10-16 03:51:06 +01:00
|
|
|
|
err = __hurd_file_name_lookup (&_hurd_ports_use, &__getdport,
|
1996-01-28 23:47:31 +01:00
|
|
|
|
file_name, flags, mode & ~_hurd_umask,
|
1995-02-18 02:27:10 +01:00
|
|
|
|
&result);
|
|
|
|
|
|
1995-10-16 03:51:06 +01:00
|
|
|
|
return err ? (__hurd_fail (err), MACH_PORT_NULL) : result;
|
1995-02-18 02:27:10 +01:00
|
|
|
|
}
|
|
|
|
|
weak_alias (__file_name_lookup, file_name_lookup)
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
file_t
|
|
|
|
|
__file_name_split (const char *file_name, char **name)
|
|
|
|
|
{
|
|
|
|
|
error_t err;
|
1995-10-16 03:51:06 +01:00
|
|
|
|
file_t result;
|
|
|
|
|
|
|
|
|
|
err = __hurd_file_name_split (&_hurd_ports_use, &__getdport,
|
|
|
|
|
file_name, &result, name);
|
1995-02-18 02:27:10 +01:00
|
|
|
|
|
1995-10-16 03:51:06 +01:00
|
|
|
|
return err ? (__hurd_fail (err), MACH_PORT_NULL) : result;
|
|
|
|
|
}
|
|
|
|
|
weak_alias (__file_name_split, file_name_split)
|
1995-02-18 02:27:10 +01:00
|
|
|
|
|
|
|
|
|
|
1995-10-16 03:51:06 +01:00
|
|
|
|
file_t
|
|
|
|
|
__file_name_lookup_under (file_t startdir,
|
|
|
|
|
const char *file_name, int flags, mode_t mode)
|
|
|
|
|
{
|
|
|
|
|
error_t err;
|
|
|
|
|
file_t result;
|
1995-02-18 02:27:10 +01:00
|
|
|
|
|
1995-10-16 03:51:06 +01:00
|
|
|
|
error_t use_init_port (int which, error_t (*operate) (mach_port_t))
|
1995-02-18 02:27:10 +01:00
|
|
|
|
{
|
1995-10-16 03:51:06 +01:00
|
|
|
|
return (which == INIT_PORT_CWDIR ? (*operate) (startdir) :
|
|
|
|
|
_hurd_ports_use (which, operate));
|
1995-02-18 02:27:10 +01:00
|
|
|
|
}
|
1995-10-16 03:51:06 +01:00
|
|
|
|
|
|
|
|
|
err = __hurd_file_name_lookup (&use_init_port, &__getdport,
|
1996-01-28 23:47:31 +01:00
|
|
|
|
file_name, flags, mode & ~_hurd_umask,
|
1995-10-16 03:51:06 +01:00
|
|
|
|
&result);
|
|
|
|
|
|
|
|
|
|
return err ? (__hurd_fail (err), MACH_PORT_NULL) : result;
|
1995-02-18 02:27:10 +01:00
|
|
|
|
}
|
1995-10-16 03:51:06 +01:00
|
|
|
|
weak_alias (__file_name_lookup_under, file_name_lookup_under)
|