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2bd0ea18 | 1 | /* |
9911e5dc | 2 | * Copyright (c) 2000 Silicon Graphics, Inc. All Rights Reserved. |
2bd0ea18 NS |
3 | * |
4 | * This program is free software; you can redistribute it and/or modify it | |
5 | * under the terms of version 2 of the GNU General Public License as | |
6 | * published by the Free Software Foundation. | |
7 | * | |
8 | * This program is distributed in the hope that it would be useful, but | |
9 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. | |
11 | * | |
12 | * Further, this software is distributed without any warranty that it is | |
13 | * free of the rightful claim of any third person regarding infringement | |
14 | * or the like. Any license provided herein, whether implied or | |
15 | * otherwise, applies only to this software file. Patent licenses, if | |
16 | * any, provided herein do not apply to combinations of this program with | |
17 | * other software, or any other product whatsoever. | |
18 | * | |
19 | * You should have received a copy of the GNU General Public License along | |
20 | * with this program; if not, write the Free Software Foundation, Inc., 59 | |
21 | * Temple Place - Suite 330, Boston MA 02111-1307, USA. | |
22 | * | |
23 | * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy, | |
24 | * Mountain View, CA 94043, or: | |
25 | * | |
26 | * http://www.sgi.com | |
27 | * | |
28 | * For further information regarding this notice, see: | |
29 | * | |
30 | * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/ | |
31 | */ | |
32 | ||
33 | #include <libxfs.h> | |
34 | #include "addr.h" | |
35 | #include "command.h" | |
36 | #include "type.h" | |
37 | #include "faddr.h" | |
38 | #include "fprint.h" | |
39 | #include "field.h" | |
40 | #include "io.h" | |
41 | #include "flist.h" | |
42 | #include "inode.h" | |
43 | #include "output.h" | |
44 | ||
45 | static int addr_f(int argc, char **argv); | |
46 | static void addr_help(void); | |
47 | ||
48 | static const cmdinfo_t addr_cmd = | |
49 | { "addr", "a", addr_f, 0, 1, 1, "[field-expression]", | |
50 | "set current address", addr_help }; | |
51 | ||
52 | static void | |
53 | addr_help(void) | |
54 | { | |
55 | dbprintf( | |
56 | "\n" | |
57 | " 'addr' uses the given field to set the filesystem address and type\n" | |
58 | "\n" | |
59 | " Examples:\n" | |
60 | "\n" | |
61 | " sb\n" | |
62 | " a rootino - set the type to inode and set position to the root inode\n" | |
63 | " a u.bmx[0].startblock (for inode with blockmap)\n" | |
64 | "\n" | |
65 | ); | |
66 | ||
67 | } | |
68 | ||
69 | static int | |
70 | addr_f( | |
71 | int argc, | |
72 | char **argv) | |
73 | { | |
74 | adfnc_t adf; | |
75 | const ftattr_t *fa; | |
76 | flist_t *fl; | |
77 | const field_t *fld; | |
78 | typnm_t next; | |
79 | flist_t *tfl; | |
80 | ||
81 | if (argc == 1) { | |
82 | print_iocur("current", iocur_top); | |
83 | return 0; | |
84 | } | |
85 | if (cur_typ == NULL) { | |
86 | dbprintf("no current type\n"); | |
87 | return 0; | |
88 | } | |
89 | fld = cur_typ->fields; | |
90 | if (fld != NULL && fld->name[0] == '\0') { | |
91 | fa = &ftattrtab[fld->ftyp]; | |
92 | ASSERT(fa->ftyp == fld->ftyp); | |
93 | fld = fa->subfld; | |
94 | } | |
95 | if (fld == NULL) { | |
96 | dbprintf("no fields for type %s\n", cur_typ->name); | |
97 | return 0; | |
98 | } | |
99 | fl = flist_scan(argv[1]); | |
100 | if (fl == NULL) | |
101 | return 0; | |
102 | if (!flist_parse(fld, fl, iocur_top->data, 0)) { | |
103 | flist_free(fl); | |
104 | return 0; | |
105 | } | |
106 | flist_print(fl); | |
107 | for (tfl = fl; tfl->child != NULL; tfl = tfl->child) { | |
108 | if ((tfl->flags & FL_OKLOW) && tfl->low < tfl->high) { | |
109 | dbprintf("array not allowed for addr command\n"); | |
110 | flist_free(fl); | |
111 | return 0; | |
112 | } | |
113 | } | |
114 | fld = tfl->fld; | |
115 | next = fld->next; | |
116 | if (next == TYP_INODATA) | |
117 | next = inode_next_type(); | |
118 | if (next == TYP_NONE) { | |
119 | dbprintf("no next type for field %s\n", fld->name); | |
120 | return 0; | |
121 | } | |
122 | fa = &ftattrtab[fld->ftyp]; | |
123 | ASSERT(fa->ftyp == fld->ftyp); | |
124 | adf = fa->adfunc; | |
125 | if (adf == NULL) { | |
126 | dbprintf("no addr function for field %s (type %s)\n", | |
127 | fld->name, fa->name); | |
128 | return 0; | |
129 | } | |
130 | (*adf)(iocur_top->data, tfl->offset, next); | |
131 | flist_free(fl); | |
132 | return 0; | |
133 | } | |
134 | ||
135 | void | |
136 | addr_init(void) | |
137 | { | |
138 | add_command(&addr_cmd); | |
139 | } |