aboutsummaryrefslogtreecommitdiffstats
path: root/contrib/bind/bin/nslookup/commands.l
blob: 7abf7d34d70976aa18dee5c2d9a061c29ad01ba3 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
%{

/*
 * Copyright (c) 1985
 *    The Regents of the University of California.  All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 * 	This product includes software developed by the University of
 * 	California, Berkeley and its contributors.
 * 4. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

/*
 * Portions Copyright (c) 1993 by Digital Equipment Corporation.
 * 
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies, and that
 * the name of Digital Equipment Corporation not be used in advertising or
 * publicity pertaining to distribution of the document or software without
 * specific, written prior permission.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS" AND DIGITAL EQUIPMENT CORP. DISCLAIMS ALL
 * WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS.   IN NO EVENT SHALL DIGITAL EQUIPMENT
 * CORPORATION BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
 * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
 * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
 * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
 * SOFTWARE.
 */

#ifndef lint
static char sccsid[] = "@(#)commands.l	5.13 (Berkeley) 7/24/90";
#endif /* not lint */

/*
 *******************************************************************************
 *
 *  commands.l
 *
 *	Andrew Cherenson	CS298-26  Fall 1985
 *
 *	Lex input file for the nslookup program command interpreter.
 *	When a sequence is recognized, the associated action
 *	routine is called. The action routine may need to
 *	parse the string for additional information.
 *
 *  Recognized commands: (identifiers are shown in uppercase)
 *
 *	server NAME	- set default server to NAME, using default server
 *	lserver NAME	- set default server to NAME, using initial server
 *	finger [NAME]	- finger the optional NAME
 *	exit		- exit the program
 *	root		- set default server to the root
 *	ls NAME		- list the domain NAME
 *	view FILE	- sorts and view the file with more
 *	set OPTION	- set an option
 *	help		- print help information
 *	?		- print help information
 *	NAME		- print info about the host/domain NAME
 *			  using default server.
 *	NAME1 NAME2	- as above, but use NAME2 as server
 *
 *
 *   yylex Results:
 *	0		upon end-of-file.
 *	1		after each command.
 *
 *******************************************************************************
 */

#include "port_before.h"
#include <sys/types.h>
#include <netinet/in.h>
#include "port_after.h"
#include <resolv.h>
#include "res.h"

extern char rootServerName[];
extern void PrintHelp();
extern void ViewList(char *);

%}
WS	[ \t]
FLET	[:A-Za-z0-9.*\\_]
LET	[:A-Za-z0-9.*_]
NAME	[:A-Za-z0-9.*=_/-]
%%
^{WS}*server{WS}+{LET}{NAME}*{WS}*$	{
					    /*
					     * 0 == use current server to find
					     *	    the new one.
					     * 1 == use original server to find
					     *	    the new one.
					     */
					    SetDefaultServer((char*)yytext, 0);
					    return(1);
					}
^{WS}*lserver{WS}+{LET}{NAME}*{WS}*$	{
					    SetDefaultServer((char*)yytext, 1);
					    return(1);
					}
^{WS}*exit{WS}*$			{
					    return(0);
					}
^{WS}*root{WS}*$			{
					    SetDefaultServer(rootServerName, 1);
					    return(1);
					}
^{WS}*finger({WS}+{LET}{NAME}*)?{WS}+>>?{WS}*{NAME}+{WS}*$	{
					    /*
					     * 2nd arg.
					     *  0 == output to stdout
					     *  1 == output to file
					     */
					    Finger((char*)yytext, 1);
					    return(1);
					}
^{WS}*finger({WS}+{LET}{NAME}*)?{WS}*$	{
					    Finger((char*)yytext, 0);
					    return(1);
					}
^{WS}*ls{WS}+(("-a"|"-d"|"-h"|"-m"|"-s"){WS}+)?{LET}{NAME}*{WS}+>>?{WS}+{NAME}+{WS}*$	{
					    /*
					     * 2nd arg.
					     *  0 == output to stdout
					     *  1 == output to file
					     */
					    ListHosts((char*)yytext, 1);
					    return(1);
					}
^{WS}*ls{WS}+(("-a"|"-d"|"-h"|"-m"|"-s"){WS}+)?{LET}{NAME}*{WS}*$	{
					    ListHosts((char*)yytext, 0);
					    return(1);
					}
^{WS}*ls{WS}+-t{WS}+({LET}{NAME}*{WS}+)?{LET}{NAME}*{WS}+>>?{WS}+{NAME}+{WS}*$ {
					    /*
					     * 2nd arg.
					     *  0 == output to stdout
					     *  1 == output to file
					     */
					    ListHostsByType((char*)yytext, 1);
					    return(1);
					}
^{WS}*ls{WS}+-t{WS}+({LET}{NAME}*{WS}+)?{LET}{NAME}*{WS}*$ {
					    ListHostsByType((char*)yytext, 0);
					    return(1);
					}
^{WS}*set{WS}+{NAME}+{WS}*$		{
					    SetOption((char*)yytext);
					    return(1);
					}
^{WS}*help{WS}*$			{
					    PrintHelp();
					    return(1);
					}
^{WS}*"?"{WS}*$				{
					    extern void PrintHelp();

					    PrintHelp();
					    return(1);
					}
^{WS}*{FLET}{NAME}*{WS}+>>?{WS}*{NAME}+{WS}*$	{
					    /*
					     * 0 == output to stdout
					     * 1 == output to file
					     */
					    LookupHost((char*)yytext, 1);
					    return(1);
					}
^{WS}*{FLET}{NAME}*{WS}*$		{
					    LookupHost((char*)yytext, 0);
					    return(1);
					}
^{WS}*{FLET}{NAME}*{WS}+{LET}{NAME}*{WS}+>>?{WS}*{NAME}+{WS}*$	{
					    /*
					     * 0 == output to stdout
					     * 1 == output to file
					     */
					    LookupHostWithServer((char*)yytext, 1);
					    return(1);
					}
^{WS}*{FLET}{NAME}*{WS}+{LET}{NAME}*{WS}*$	{
					    LookupHostWithServer((char*)yytext, 0);
					    return(1);
					}
^{WS}*\n				{
					    return(1);
					}
^.*\n					{
					    printf("Unrecognized command: %s",
							(char*)yytext);
					    return(1);
					}
\n					{ ; }
%%