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Diffstat (limited to 'package/etrax-tools/src/e100boot/libpcap-0.4/scanner.l')
| -rw-r--r-- | package/etrax-tools/src/e100boot/libpcap-0.4/scanner.l | 203 |
1 files changed, 203 insertions, 0 deletions
diff --git a/package/etrax-tools/src/e100boot/libpcap-0.4/scanner.l b/package/etrax-tools/src/e100boot/libpcap-0.4/scanner.l new file mode 100644 index 000000000..be435e8d3 --- /dev/null +++ b/package/etrax-tools/src/e100boot/libpcap-0.4/scanner.l @@ -0,0 +1,203 @@ +%{ +/* + * Copyright (c) 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997 + * 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: (1) source code distributions + * retain the above copyright notice and this paragraph in its entirety, (2) + * distributions including binary code include the above copyright notice and + * this paragraph in its entirety in the documentation or other materials + * provided with the distribution, and (3) all advertising materials mentioning + * features or use of this software display the following acknowledgement: + * ``This product includes software developed by the University of California, + * Lawrence Berkeley Laboratory and its contributors.'' 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 ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. + */ + +#ifndef lint +static const char rcsid[] = + "@(#) $Header: /usr/local/cvs/linux/tools/build/e100boot/libpcap-0.4/scanner.l,v 1.1 1999/08/26 10:05:27 johana Exp $ (LBL)"; +#endif + +#include <sys/types.h> +#include <sys/time.h> + +#include <ctype.h> +#include <unistd.h> + +#include "pcap-int.h" + +#include "gencode.h" +#include <pcap-namedb.h> +#include "tokdefs.h" + +#include "gnuc.h" +#ifdef HAVE_OS_PROTO_H +#include "os-proto.h" +#endif + +static int stoi(char *); +static inline int xdtoi(int); + +#ifdef FLEX_SCANNER +#define YY_NO_UNPUT +#undef YY_INPUT +#define YY_INPUT(buf, result, max)\ + {\ + char *src = in_buffer;\ + int i;\ +\ + if (*src == 0)\ + result = YY_NULL;\ + else {\ + for (i = 0; *src && i < max; ++i)\ + buf[i] = *src++;\ + in_buffer += i;\ + result = i;\ + }\ + } +#else +#undef getc +#define getc(fp) (*in_buffer == 0 ? EOF : *in_buffer++) +#endif + +#define yylval pcap_lval +extern YYSTYPE yylval; + +static char *in_buffer; + +%} + +N ([0-9]+|(0X|0x)[0-9A-Fa-f]+) +B ([0-9A-Fa-f][0-9A-Fa-f]?) + +%a 3000 + +%% +dst return DST; +src return SRC; + +link|ether|ppp|slip return LINK; +fddi return LINK; +arp return ARP; +rarp return RARP; +ip return IP; +tcp return TCP; +udp return UDP; +icmp return ICMP; +igmp return IGMP; +igrp return IGRP; + +atalk return ATALK; +decnet return DECNET; +lat return LAT; +sca return SCA; +moprc return MOPRC; +mopdl return MOPDL; + +host return HOST; +net return NET; +mask return MASK; +port return PORT; +proto return PROTO; + +gateway return GATEWAY; + +less return LESS; +greater return GREATER; +byte return BYTE; +broadcast return TK_BROADCAST; +multicast return TK_MULTICAST; + +and|"&&" return AND; +or|"||" return OR; +not return '!'; + +len|length return LEN; +inbound return INBOUND; +outbound return OUTBOUND; + +[ \n\t] ; +[+\-*/:\[\]!<>()&|=] return yytext[0]; +">=" return GEQ; +"<=" return LEQ; +"!=" return NEQ; +"==" return '='; +"<<" return LSH; +">>" return RSH; +{N} { yylval.i = stoi((char *)yytext); return NUM; } +({N}\.{N})|({N}\.{N}\.{N})|({N}\.{N}\.{N}\.{N}) { + yylval.s = sdup((char *)yytext); return HID; } +{B}:{B}:{B}:{B}:{B}:{B} { yylval.e = pcap_ether_aton((char *)yytext); + return EID; } +{B}:+({B}:+)+ { bpf_error("bogus ethernet address %s", yytext); } +[A-Za-z0-9][-_.A-Za-z0-9]*[.A-Za-z0-9] { + yylval.s = sdup((char *)yytext); return ID; } +"\\"[^ !()\n\t]+ { yylval.s = sdup((char *)yytext + 1); return ID; } +[^ \[\]\t\n\-_.A-Za-z0-9!<>()&|=]+i { + bpf_error("illegal token: %s\n", yytext); } +. { bpf_error("illegal char '%c'", *yytext); } +%% +void +lex_init(buf) + char *buf; +{ + in_buffer = buf; +} + +/* + * Also define a yywrap. Note that if we're using flex, it will + * define a macro to map this identifier to pcap_wrap. + */ +int +yywrap() +{ + return 1; +} + +/* Hex digit to integer. */ +static inline int +xdtoi(c) + register int c; +{ + if (isdigit(c)) + return c - '0'; + else if (islower(c)) + return c - 'a' + 10; + else + return c - 'A' + 10; +} + +/* + * Convert string to integer. Just like atoi(), but checks for + * preceding 0x or 0 and uses hex or octal instead of decimal. + */ +static int +stoi(s) + char *s; +{ + int base = 10; + int n = 0; + + if (*s == '0') { + if (s[1] == 'x' || s[1] == 'X') { + s += 2; + base = 16; + } + else { + base = 8; + s += 1; + } + } + while (*s) + n = n * base + xdtoi(*s++); + + return n; +} + |