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1 | /* Declarations of file name translation functions for the GNU Hurd. |
2 | Copyright (C) 1995 Free Software Foundation, Inc. | |
3 | This file is part of the GNU C Library. | |
4 | ||
5 | The GNU C Library is free software; you can redistribute it and/or | |
6 | modify it under the terms of the GNU Library General Public License as | |
7 | published by the Free Software Foundation; either version 2 of the | |
8 | License, or (at your option) any later version. | |
9 | ||
10 | The GNU C Library is distributed in the hope that it will be useful, | |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
13 | Library General Public License for more details. | |
14 | ||
15 | You should have received a copy of the GNU Library General Public | |
16 | License along with the GNU C Library; see the file COPYING.LIB. If | |
17 | not, write to the Free Software Foundation, Inc., 675 Mass Ave, | |
18 | Cambridge, MA 02139, USA. */ | |
19 | ||
20 | #ifndef _HURD_LOOKUP_H | |
21 | #define _HURD_LOOKUP_H 1 | |
22 | ||
23 | /* These functions all take two callback functions as the first two arguments. | |
24 | The first callback function USE_INIT_PORT is called as follows: | |
25 | ||
26 | error_t use_init_port (int which, error_t (*operate) (mach_port_t)); | |
27 | ||
28 | WHICH is nonnegative value less than INIT_PORT_MAX, indicating which | |
29 | init port is required. The callback function should call *OPERATE | |
30 | with a send right to the appropriate init port. No user reference | |
31 | is consumed; the right will only be used after *OPERATE returns if | |
32 | *OPERATE has added its own user reference. | |
33 | ||
34 | The second callback function GET_DTABLE_PORT should behave like `getdport'. | |
35 | ||
36 | All these functions return zero on success or an error code on failure. */ | |
37 | ||
38 | ||
39 | /* Open a port to FILE with the given FLAGS and MODE (see <fcntl.h>). If | |
40 | successful, returns zero and store the port to FILE in *PORT; otherwise | |
41 | returns an error code. */ | |
42 | ||
43 | error_t __hurd_file_name_lookup (error_t (*use_init_port) | |
44 | (int which, | |
45 | error_t (*operate) (mach_port_t)), | |
46 | file_t (*get_dtable_port) (int fd), | |
47 | const char *file_name, | |
48 | int flags, mode_t mode, | |
49 | file_t *result); | |
50 | error_t hurd_file_name_lookup (error_t (*use_init_port) | |
51 | (int which, | |
52 | error_t (*operate) (mach_port_t)), | |
53 | file_t (*get_dtable_port) (int fd), | |
54 | const char *file_name, | |
55 | int flags, mode_t mode, | |
56 | file_t *result); | |
57 | ||
58 | ||
59 | /* Split FILE into a directory and a name within the directory. Look up a | |
60 | port for the directory and store it in *DIR; store in *NAME a pointer | |
61 | into FILE where the name within directory begins. */ | |
62 | ||
63 | error_t __hurd_file_name_split (error_t (*use_init_port) | |
64 | (int which, | |
65 | error_t (*operate) (mach_port_t)), | |
66 | file_t (*get_dtable_port) (int fd), | |
67 | const char *file_name, | |
68 | file_t *dir, char **name); | |
69 | error_t hurd_file_name_split (error_t (*use_init_port) | |
70 | (int which, | |
71 | error_t (*operate) (mach_port_t)), | |
72 | file_t (*get_dtable_port) (int fd), | |
73 | const char *file_name, | |
74 | file_t *dir, char **name); | |
75 | ||
76 | ||
77 | /* Process the values returned by `dir_lookup' et al, and loop doing | |
78 | `dir_lookup' calls until one returns FS_RETRY_NONE. The arguments | |
79 | should be those just passed to and/or returned from `dir_lookup', | |
80 | `fsys_getroot', or `file_invoke_translator'. This function consumes the | |
81 | reference in *RESULT even if it returns an error. */ | |
82 | ||
83 | error_t __hurd_file_name_lookup_retry (error_t (*use_init_port) | |
84 | (int which, | |
85 | error_t (*operate) (mach_port_t)), | |
86 | file_t (*get_dtable_port) (int fd), | |
87 | enum retry_type doretry, | |
88 | char retryname[1024], | |
89 | int flags, mode_t mode, | |
90 | file_t *result); | |
91 | error_t hurd_file_name_lookup_retry (error_t (*use_init_port) | |
92 | (int which, | |
93 | error_t (*operate) (mach_port_t)), | |
94 | file_t (*get_dtable_port) (int fd), | |
95 | enum retry_type doretry, | |
96 | char retryname[1024], | |
97 | int flags, mode_t mode, | |
98 | file_t *result); | |
99 | ||
100 | ||
101 | #endif /* hurd/lookup.h */ |