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Diffstat (limited to 'usr.sbin/nslookup/commands.l')
| -rw-r--r-- | usr.sbin/nslookup/commands.l | 219 |
1 files changed, 219 insertions, 0 deletions
diff --git a/usr.sbin/nslookup/commands.l b/usr.sbin/nslookup/commands.l new file mode 100644 index 0000000..f70d1aa --- /dev/null +++ b/usr.sbin/nslookup/commands.l @@ -0,0 +1,219 @@ +%{ + +/* + * ++Copyright++ 1985 + * - + * 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. + * - + * --Copyright-- + */ + +#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 "res.h" +extern char rootServerName[]; +extern void PrintHelp(); + +%} +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(yytext, 0); + return(1); + } +^{WS}*lserver{WS}+{LET}{NAME}*{WS}*$ { + SetDefaultServer(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(yytext, 1); + return(1); + } +^{WS}*finger({WS}+{LET}{NAME}*)?{WS}*$ { + Finger(yytext, 0); + return(1); + } +^{WS}*view{WS}+{NAME}+{WS}*$ { + ViewList(yytext); + 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(yytext, 1); + return(1); + } +^{WS}*ls{WS}+(("-a"|"-d"|"-h"|"-m"|"-s"){WS}+)?{LET}{NAME}*{WS}*$ { + ListHosts(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(yytext, 1); + return(1); + } +^{WS}*ls{WS}+-t{WS}+({LET}{NAME}*{WS}+)?{LET}{NAME}*{WS}*$ { + ListHostsByType(yytext, 0); + return(1); + } +^{WS}*set{WS}+{NAME}+{WS}*$ { + SetOption(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(yytext, 1); + return(1); + } +^{WS}*{FLET}{NAME}*{WS}*$ { + LookupHost(yytext, 0); + return(1); + } +^{WS}*{FLET}{NAME}*{WS}+{LET}{NAME}*{WS}+>>?{WS}*{NAME}+{WS}*$ { + /* + * 0 == output to stdout + * 1 == output to file + */ + LookupHostWithServer(yytext, 1); + return(1); + } +^{WS}*{FLET}{NAME}*{WS}+{LET}{NAME}*{WS}*$ { + LookupHostWithServer(yytext, 0); + return(1); + } +^{WS}*\n { + return(1); + } +^.*\n { + printf("Unrecognized command: %s", + yytext); + return(1); + } +\n { ; } +%% |
