diff options
Diffstat (limited to '')
| -rw-r--r-- | src/grammar.c | 1093 | ||||
| -rw-r--r-- | src/grammar.h | 35 | ||||
| -rw-r--r-- | src/grammar.y | 155 | ||||
| -rw-r--r-- | src/scanner.c | 1763 | ||||
| -rw-r--r-- | src/scanner.l | 147 |
5 files changed, 3193 insertions, 0 deletions
diff --git a/src/grammar.c b/src/grammar.c new file mode 100644 index 0000000..d25b58d --- /dev/null +++ b/src/grammar.c @@ -0,0 +1,1093 @@ + +/* A Bison parser, made from grammar.y + by GNU Bison version 1.28 */ + +#define YYBISON 1 /* Identify Bison output. */ + +#define KW_PORT 257 +#define KW_LISTEN 258 +#define KW_LOGFILE 259 +#define KW_PIDFILE 260 +#define KW_SYSLOG 261 +#define KW_MAXCLIENTS 262 +#define KW_MAXSPARESERVERS 263 +#define KW_MINSPARESERVERS 264 +#define KW_STARTSERVERS 265 +#define KW_MAXREQUESTSPERCHILD 266 +#define KW_TIMEOUT 267 +#define KW_USER 268 +#define KW_GROUP 269 +#define KW_ANONYMOUS 270 +#define KW_FILTER 271 +#define KW_XTINYPROXY 272 +#define KW_TUNNEL 273 +#define KW_ALLOW 274 +#define KW_DENY 275 +#define KW_YES 276 +#define KW_NO 277 +#define IDENTIFIER 278 +#define NUMBER 279 +#define STRING 280 +#define NUMERIC_ADDRESS 281 +#define STRING_ADDRESS 282 +#define NETMASK_ADDRESS 283 + +#line 20 "grammar.y" + + +#include "tinyproxy.h" + +#include "acl.h" +#include "anonymous.h" +#include "log.h" +#include "thread.h" + +void yyerror(char *s); +int yylex(void); + + +#line 34 "grammar.y" +typedef union { + unsigned int num; + char *cptr; + void *ptr; +} YYSTYPE; +#include <stdio.h> + +#ifndef __cplusplus +#ifndef __STDC__ +#define const +#endif +#endif + + + +#define YYFINAL 56 +#define YYFLAG -32768 +#define YYNTBASE 32 + +#define YYTRANSLATE(x) ((unsigned)(x) <= 283 ? yytranslate[x] : 39) + +static const char yytranslate[] = { 0, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 30, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 31, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 1, 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 +}; + +#if YYDEBUG != 0 +static const short yyprhs[] = { 0, + 0, 1, 4, 6, 9, 12, 15, 18, 21, 24, + 27, 30, 33, 36, 39, 42, 45, 48, 51, 54, + 59, 62, 65, 68, 70, 72, 74, 76, 78, 80, + 82, 84 +}; + +static const short yyrhs[] = { -1, + 32, 33, 0, 30, 0, 34, 30, 0, 3, 25, + 0, 13, 25, 0, 7, 37, 0, 8, 25, 0, + 9, 25, 0, 10, 25, 0, 11, 25, 0, 12, + 25, 0, 5, 38, 0, 6, 38, 0, 14, 38, + 0, 15, 38, 0, 16, 38, 0, 17, 38, 0, + 18, 35, 0, 19, 36, 31, 25, 0, 4, 27, + 0, 20, 35, 0, 21, 35, 0, 36, 0, 29, + 0, 28, 0, 27, 0, 22, 0, 23, 0, 25, + 0, 24, 0, 26, 0 +}; + +#endif + +#if YYDEBUG != 0 +static const short yyrline[] = { 0, + 68, 69, 73, 74, 78, 79, 80, 88, 89, 90, + 91, 92, 93, 100, 101, 102, 103, 104, 112, 113, + 122, 123, 124, 128, 129, 133, 134, 138, 139, 140, + 144, 145 +}; +#endif + + +#if YYDEBUG != 0 || defined (YYERROR_VERBOSE) + +static const char * const yytname[] = { "$","error","$undefined.","KW_PORT", +"KW_LISTEN","KW_LOGFILE","KW_PIDFILE","KW_SYSLOG","KW_MAXCLIENTS","KW_MAXSPARESERVERS", +"KW_MINSPARESERVERS","KW_STARTSERVERS","KW_MAXREQUESTSPERCHILD","KW_TIMEOUT", +"KW_USER","KW_GROUP","KW_ANONYMOUS","KW_FILTER","KW_XTINYPROXY","KW_TUNNEL", +"KW_ALLOW","KW_DENY","KW_YES","KW_NO","IDENTIFIER","NUMBER","STRING","NUMERIC_ADDRESS", +"STRING_ADDRESS","NETMASK_ADDRESS","'\\n'","':'","start","line","statement", +"network_address","unique_address","yesno","string", NULL +}; +#endif + +static const short yyr1[] = { 0, + 32, 32, 33, 33, 34, 34, 34, 34, 34, 34, + 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, + 34, 34, 34, 35, 35, 36, 36, 37, 37, 37, + 38, 38 +}; + +static const short yyr2[] = { 0, + 0, 2, 1, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 4, + 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, + 1, 1 +}; + +static const short yydefact[] = { 1, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 3, 2, 0, 5, 21, 31, 32, 13, 14, 28, + 29, 30, 7, 8, 9, 10, 11, 12, 6, 15, + 16, 17, 18, 27, 26, 25, 19, 24, 0, 22, + 23, 4, 0, 20, 0, 0 +}; + +static const short yydefgoto[] = { 1, + 22, 23, 47, 48, 33, 28 +}; + +static const short yypact[] = {-32768, + 0, -3, -1, 14, 14, 2, 16, 17, 19, 20, + 21, 22, 14, 14, 14, 14, 8, -26, 8, 8, +-32768,-32768, 13,-32768,-32768,-32768,-32768,-32768,-32768,-32768, +-32768,-32768,-32768,-32768,-32768,-32768,-32768,-32768,-32768,-32768, +-32768,-32768,-32768,-32768,-32768,-32768,-32768,-32768, 23,-32768, +-32768,-32768, 24,-32768, 39,-32768 +}; + +static const short yypgoto[] = {-32768, +-32768,-32768, 9, 30,-32768, 18 +}; + + +#define YYLAST 54 + + +static const short yytable[] = { 55, + 44, 45, 2, 3, 4, 5, 6, 7, 8, 9, + 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, + 20, 24, 29, 30, 31, 25, 32, 50, 51, 21, + 40, 41, 42, 43, 44, 45, 46, 26, 56, 27, + 34, 35, 52, 36, 37, 38, 39, 49, 54, 0, + 0, 0, 0, 53 +}; + +static const short yycheck[] = { 0, + 27, 28, 3, 4, 5, 6, 7, 8, 9, 10, + 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, + 21, 25, 5, 22, 23, 27, 25, 19, 20, 30, + 13, 14, 15, 16, 27, 28, 29, 24, 0, 26, + 25, 25, 30, 25, 25, 25, 25, 18, 25, -1, + -1, -1, -1, 31 +}; +/* -*-C-*- Note some compilers choke on comments on `#line' lines. */ +#line 3 "/usr/share/misc/bison.simple" +/* This file comes from bison-1.28. */ + +/* Skeleton output parser for bison, + Copyright (C) 1984, 1989, 1990 Free Software Foundation, Inc. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2, or (at your option) + any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +/* As a special exception, when this file is copied by Bison into a + Bison output file, you may use that output file without restriction. + This special exception was added by the Free Software Foundation + in version 1.24 of Bison. */ + +/* This is the parser code that is written into each bison parser + when the %semantic_parser declaration is not specified in the grammar. + It was written by Richard Stallman by simplifying the hairy parser + used when %semantic_parser is specified. */ + +#ifndef YYSTACK_USE_ALLOCA +#ifdef alloca +#define YYSTACK_USE_ALLOCA +#else /* alloca not defined */ +#ifdef __GNUC__ +#define YYSTACK_USE_ALLOCA +#define alloca __builtin_alloca +#else /* not GNU C. */ +#if (!defined (__STDC__) && defined (sparc)) || defined (__sparc__) || defined (__sparc) || defined (__sgi) || (defined (__sun) && defined (__i386)) +#define YYSTACK_USE_ALLOCA +#include <alloca.h> +#else /* not sparc */ +/* We think this test detects Watcom and Microsoft C. */ +/* This used to test MSDOS, but that is a bad idea + since that symbol is in the user namespace. */ +#if (defined (_MSDOS) || defined (_MSDOS_)) && !defined (__TURBOC__) +#if 0 /* No need for malloc.h, which pollutes the namespace; + instead, just don't use alloca. */ +#include <malloc.h> +#endif +#else /* not MSDOS, or __TURBOC__ */ +#if defined(_AIX) +/* I don't know what this was needed for, but it pollutes the namespace. + So I turned it off. rms, 2 May 1997. */ +/* #include <malloc.h> */ + #pragma alloca +#define YYSTACK_USE_ALLOCA +#else /* not MSDOS, or __TURBOC__, or _AIX */ +#if 0 +#ifdef __hpux /* haible@ilog.fr says this works for HPUX 9.05 and up, + and on HPUX 10. Eventually we can turn this on. */ +#define YYSTACK_USE_ALLOCA +#define alloca __builtin_alloca +#endif /* __hpux */ +#endif +#endif /* not _AIX */ +#endif /* not MSDOS, or __TURBOC__ */ +#endif /* not sparc */ +#endif /* not GNU C */ +#endif /* alloca not defined */ +#endif /* YYSTACK_USE_ALLOCA not defined */ + +#ifdef YYSTACK_USE_ALLOCA +#define YYSTACK_ALLOC alloca +#else +#define YYSTACK_ALLOC malloc +#endif + +/* Note: there must be only one dollar sign in this file. + It is replaced by the list of actions, each action + as one case of the switch. */ + +#define yyerrok (yyerrstatus = 0) +#define yyclearin (yychar = YYEMPTY) +#define YYEMPTY -2 +#define YYEOF 0 +#define YYACCEPT goto yyacceptlab +#define YYABORT goto yyabortlab +#define YYERROR goto yyerrlab1 +/* Like YYERROR except do call yyerror. + This remains here temporarily to ease the + transition to the new meaning of YYERROR, for GCC. + Once GCC version 2 has supplanted version 1, this can go. */ +#define YYFAIL goto yyerrlab +#define YYRECOVERING() (!!yyerrstatus) +#define YYBACKUP(token, value) \ +do \ + if (yychar == YYEMPTY && yylen == 1) \ + { yychar = (token), yylval = (value); \ + yychar1 = YYTRANSLATE (yychar); \ + YYPOPSTACK; \ + goto yybackup; \ + } \ + else \ + { yyerror ("syntax error: cannot back up"); YYERROR; } \ +while (0) + +#define YYTERROR 1 +#define YYERRCODE 256 + +#ifndef YYPURE +#define YYLEX yylex() +#endif + +#ifdef YYPURE +#ifdef YYLSP_NEEDED +#ifdef YYLEX_PARAM +#define YYLEX yylex(&yylval, &yylloc, YYLEX_PARAM) +#else +#define YYLEX yylex(&yylval, &yylloc) +#endif +#else /* not YYLSP_NEEDED */ +#ifdef YYLEX_PARAM +#define YYLEX yylex(&yylval, YYLEX_PARAM) +#else +#define YYLEX yylex(&yylval) +#endif +#endif /* not YYLSP_NEEDED */ +#endif + +/* If nonreentrant, generate the variables here */ + +#ifndef YYPURE + +int yychar; /* the lookahead symbol */ +YYSTYPE yylval; /* the semantic value of the */ + /* lookahead symbol */ + +#ifdef YYLSP_NEEDED +YYLTYPE yylloc; /* location data for the lookahead */ + /* symbol */ +#endif + +int yynerrs; /* number of parse errors so far */ +#endif /* not YYPURE */ + +#if YYDEBUG != 0 +int yydebug; /* nonzero means print parse trace */ +/* Since this is uninitialized, it does not stop multiple parsers + from coexisting. */ +#endif + +/* YYINITDEPTH indicates the initial size of the parser's stacks */ + +#ifndef YYINITDEPTH +#define YYINITDEPTH 200 +#endif + +/* YYMAXDEPTH is the maximum size the stacks can grow to + (effective only if the built-in stack extension method is used). */ + +#if YYMAXDEPTH == 0 +#undef YYMAXDEPTH +#endif + +#ifndef YYMAXDEPTH +#define YYMAXDEPTH 10000 +#endif + +/* Define __yy_memcpy. Note that the size argument + should be passed with type unsigned int, because that is what the non-GCC + definitions require. With GCC, __builtin_memcpy takes an arg + of type size_t, but it can handle unsigned int. */ + +#if __GNUC__ > 1 /* GNU C and GNU C++ define this. */ +#define __yy_memcpy(TO,FROM,COUNT) __builtin_memcpy(TO,FROM,COUNT) +#else /* not GNU C or C++ */ +#ifndef __cplusplus + +/* This is the most reliable way to avoid incompatibilities + in available built-in functions on various systems. */ +static void +__yy_memcpy (to, from, count) + char *to; + char *from; + unsigned int count; +{ + register char *f = from; + register char *t = to; + register int i = count; + + while (i-- > 0) + *t++ = *f++; +} + +#else /* __cplusplus */ + +/* This is the most reliable way to avoid incompatibilities + in available built-in functions on various systems. */ +static void +__yy_memcpy (char *to, char *from, unsigned int count) +{ + register char *t = to; + register char *f = from; + register int i = count; + + while (i-- > 0) + *t++ = *f++; +} + +#endif +#endif + +#line 217 "/usr/share/misc/bison.simple" + +/* The user can define YYPARSE_PARAM as the name of an argument to be passed + into yyparse. The argument should have type void *. + It should actually point to an object. + Grammar actions can access the variable by casting it + to the proper pointer type. */ + +#ifdef YYPARSE_PARAM +#ifdef __cplusplus +#define YYPARSE_PARAM_ARG void *YYPARSE_PARAM +#define YYPARSE_PARAM_DECL +#else /* not __cplusplus */ +#define YYPARSE_PARAM_ARG YYPARSE_PARAM +#define YYPARSE_PARAM_DECL void *YYPARSE_PARAM; +#endif /* not __cplusplus */ +#else /* not YYPARSE_PARAM */ +#define YYPARSE_PARAM_ARG +#define YYPARSE_PARAM_DECL +#endif /* not YYPARSE_PARAM */ + +/* Prevent warning if -Wstrict-prototypes. */ +#ifdef __GNUC__ +#ifdef YYPARSE_PARAM +int yyparse (void *); +#else +int yyparse (void); +#endif +#endif + +int +yyparse(YYPARSE_PARAM_ARG) + YYPARSE_PARAM_DECL +{ + register int yystate; + register int yyn; + register short *yyssp; + register YYSTYPE *yyvsp; + int yyerrstatus; /* number of tokens to shift before error messages enabled */ + int yychar1 = 0; /* lookahead token as an internal (translated) token number */ + + short yyssa[YYINITDEPTH]; /* the state stack */ + YYSTYPE yyvsa[YYINITDEPTH]; /* the semantic value stack */ + + short *yyss = yyssa; /* refer to the stacks thru separate pointers */ + YYSTYPE *yyvs = yyvsa; /* to allow yyoverflow to reallocate them elsewhere */ + +#ifdef YYLSP_NEEDED + YYLTYPE yylsa[YYINITDEPTH]; /* the location stack */ + YYLTYPE *yyls = yylsa; + YYLTYPE *yylsp; + +#define YYPOPSTACK (yyvsp--, yyssp--, yylsp--) +#else +#define YYPOPSTACK (yyvsp--, yyssp--) +#endif + + int yystacksize = YYINITDEPTH; + int yyfree_stacks = 0; + +#ifdef YYPURE + int yychar; + YYSTYPE yylval; + int yynerrs; +#ifdef YYLSP_NEEDED + YYLTYPE yylloc; +#endif +#endif + + YYSTYPE yyval; /* the variable used to return */ + /* semantic values from the action */ + /* routines */ + + int yylen; + +#if YYDEBUG != 0 + if (yydebug) + fprintf(stderr, "Starting parse\n"); +#endif + + yystate = 0; + yyerrstatus = 0; + yynerrs = 0; + yychar = YYEMPTY; /* Cause a token to be read. */ + + /* Initialize stack pointers. + Waste one element of value and location stack + so that they stay on the same level as the state stack. + The wasted elements are never initialized. */ + + yyssp = yyss - 1; + yyvsp = yyvs; +#ifdef YYLSP_NEEDED + yylsp = yyls; +#endif + +/* Push a new state, which is found in yystate . */ +/* In all cases, when you get here, the value and location stacks + have just been pushed. so pushing a state here evens the stacks. */ +yynewstate: + + *++yyssp = yystate; + + if (yyssp >= yyss + yystacksize - 1) + { + /* Give user a chance to reallocate the stack */ + /* Use copies of these so that the &'s don't force the real ones into memory. */ + YYSTYPE *yyvs1 = yyvs; + short *yyss1 = yyss; +#ifdef YYLSP_NEEDED + YYLTYPE *yyls1 = yyls; +#endif + + /* Get the current used size of the three stacks, in elements. */ + int size = yyssp - yyss + 1; + +#ifdef yyoverflow + /* Each stack pointer address is followed by the size of + the data in use in that stack, in bytes. */ +#ifdef YYLSP_NEEDED + /* This used to be a conditional around just the two extra args, + but that might be undefined if yyoverflow is a macro. */ + yyoverflow("parser stack overflow", + &yyss1, size * sizeof (*yyssp), + &yyvs1, size * sizeof (*yyvsp), + &yyls1, size * sizeof (*yylsp), + &yystacksize); +#else + yyoverflow("parser stack overflow", + &yyss1, size * sizeof (*yyssp), + &yyvs1, size * sizeof (*yyvsp), + &yystacksize); +#endif + + yyss = yyss1; yyvs = yyvs1; +#ifdef YYLSP_NEEDED + yyls = yyls1; +#endif +#else /* no yyoverflow */ + /* Extend the stack our own way. */ + if (yystacksize >= YYMAXDEPTH) + { + yyerror("parser stack overflow"); + if (yyfree_stacks) + { + free (yyss); + free (yyvs); +#ifdef YYLSP_NEEDED + free (yyls); +#endif + } + return 2; + } + yystacksize *= 2; + if (yystacksize > YYMAXDEPTH) + yystacksize = YYMAXDEPTH; +#ifndef YYSTACK_USE_ALLOCA + yyfree_stacks = 1; +#endif + yyss = (short *) YYSTACK_ALLOC (yystacksize * sizeof (*yyssp)); + __yy_memcpy ((char *)yyss, (char *)yyss1, + size * (unsigned int) sizeof (*yyssp)); + yyvs = (YYSTYPE *) YYSTACK_ALLOC (yystacksize * sizeof (*yyvsp)); + __yy_memcpy ((char *)yyvs, (char *)yyvs1, + size * (unsigned int) sizeof (*yyvsp)); +#ifdef YYLSP_NEEDED + yyls = (YYLTYPE *) YYSTACK_ALLOC (yystacksize * sizeof (*yylsp)); + __yy_memcpy ((char *)yyls, (char *)yyls1, + size * (unsigned int) sizeof (*yylsp)); +#endif +#endif /* no yyoverflow */ + + yyssp = yyss + size - 1; + yyvsp = yyvs + size - 1; +#ifdef YYLSP_NEEDED + yylsp = yyls + size - 1; +#endif + +#if YYDEBUG != 0 + if (yydebug) + fprintf(stderr, "Stack size increased to %d\n", yystacksize); +#endif + + if (yyssp >= yyss + yystacksize - 1) + YYABORT; + } + +#if YYDEBUG != 0 + if (yydebug) + fprintf(stderr, "Entering state %d\n", yystate); +#endif + + goto yybackup; + yybackup: + +/* Do appropriate processing given the current state. */ +/* Read a lookahead token if we need one and don't already have one. */ +/* yyresume: */ + + /* First try to decide what to do without reference to lookahead token. */ + + yyn = yypact[yystate]; + if (yyn == YYFLAG) + goto yydefault; + + /* Not known => get a lookahead token if don't already have one. */ + + /* yychar is either YYEMPTY or YYEOF + or a valid token in external form. */ + + if (yychar == YYEMPTY) + { +#if YYDEBUG != 0 + if (yydebug) + fprintf(stderr, "Reading a token: "); +#endif + yychar = YYLEX; + } + + /* Convert token to internal form (in yychar1) for indexing tables with */ + + if (yychar <= 0) /* This means end of input. */ + { + yychar1 = 0; + yychar = YYEOF; /* Don't call YYLEX any more */ + +#if YYDEBUG != 0 + if (yydebug) + fprintf(stderr, "Now at end of input.\n"); +#endif + } + else + { + yychar1 = YYTRANSLATE(yychar); + +#if YYDEBUG != 0 + if (yydebug) + { + fprintf (stderr, "Next token is %d (%s", yychar, yytname[yychar1]); + /* Give the individual parser a way to print the precise meaning + of a token, for further debugging info. */ +#ifdef YYPRINT + YYPRINT (stderr, yychar, yylval); +#endif + fprintf (stderr, ")\n"); + } +#endif + } + + yyn += yychar1; + if (yyn < 0 || yyn > YYLAST || yycheck[yyn] != yychar1) + goto yydefault; + + yyn = yytable[yyn]; + + /* yyn is what to do for this token type in this state. + Negative => reduce, -yyn is rule number. + Positive => shift, yyn is new state. + New state is final state => don't bother to shift, + just return success. + 0, or most negative number => error. */ + + if (yyn < 0) + { + if (yyn == YYFLAG) + goto yyerrlab; + yyn = -yyn; + goto yyreduce; + } + else if (yyn == 0) + goto yyerrlab; + + if (yyn == YYFINAL) + YYACCEPT; + + /* Shift the lookahead token. */ + +#if YYDEBUG != 0 + if (yydebug) + fprintf(stderr, "Shifting token %d (%s), ", yychar, yytname[yychar1]); +#endif + + /* Discard the token being shifted unless it is eof. */ + if (yychar != YYEOF) + yychar = YYEMPTY; + + *++yyvsp = yylval; +#ifdef YYLSP_NEEDED + *++yylsp = yylloc; +#endif + + /* count tokens shifted since error; after three, turn off error status. */ + if (yyerrstatus) yyerrstatus--; + + yystate = yyn; + goto yynewstate; + +/* Do the default action for the current state. */ +yydefault: + + yyn = yydefact[yystate]; + if (yyn == 0) + goto yyerrlab; + +/* Do a reduction. yyn is the number of a rule to reduce with. */ +yyreduce: + yylen = yyr2[yyn]; + if (yylen > 0) + yyval = yyvsp[1-yylen]; /* implement default value of the action */ + +#if YYDEBUG != 0 + if (yydebug) + { + int i; + + fprintf (stderr, "Reducing via rule %d (line %d), ", + yyn, yyrline[yyn]); + + /* Print the symbols being reduced, and their result. */ + for (i = yyprhs[yyn]; yyrhs[i] > 0; i++) + fprintf (stderr, "%s ", yytname[yyrhs[i]]); + fprintf (stderr, " -> %s\n", yytname[yyr1[yyn]]); + } +#endif + + + switch (yyn) { + +case 5: +#line 78 "grammar.y" +{ config.port = yyvsp[0].num; ; + break;} +case 6: +#line 79 "grammar.y" +{ config.idletimeout = yyvsp[0].num; ; + break;} +case 7: +#line 81 "grammar.y" +{ +#ifdef HAVE_SYSLOG_H + config.syslog = yyvsp[0].num; +#else + log(LOG_WARNING, "Syslog support was not compiled in."); +#endif + ; + break;} +case 8: +#line 88 "grammar.y" +{ thread_configure(THREAD_MAXCLIENTS, yyvsp[0].num); ; + break;} +case 9: +#line 89 "grammar.y" +{ thread_configure(THREAD_MAXSPARESERVERS, yyvsp[0].num); ; + break;} +case 10: +#line 90 "grammar.y" +{ thread_configure(THREAD_MINSPARESERVERS, yyvsp[0].num); ; + break;} +case 11: +#line 91 "grammar.y" +{ thread_configure(THREAD_STARTSERVERS, yyvsp[0].num); ; + break;} +case 12: +#line 92 "grammar.y" +{ thread_configure(THREAD_MAXREQUESTSPERCHILD, yyvsp[0].num); ; + break;} +case 13: +#line 94 "grammar.y" +{ + config.logf_name = yyvsp[0].cptr; + if (!config.logf_name) { + fprintf(stderr, "bad log file\n"); + } + ; + break;} +case 14: +#line 100 "grammar.y" +{ config.pidpath = yyvsp[0].cptr; ; + break;} +case 15: +#line 101 "grammar.y" +{ config.username = yyvsp[0].cptr; ; + break;} +case 16: +#line 102 "grammar.y" +{ config.group = yyvsp[0].cptr; ; + break;} +case 17: +#line 103 "grammar.y" +{ anon_insert(yyvsp[0].cptr); ; + break;} +case 18: +#line 105 "grammar.y" +{ +#ifdef FILTER_ENABLE + config.filter = yyvsp[0].cptr; +#else + log(LOG_WARNING, "Filter support was not compiled in."); +#endif + ; + break;} +case 19: +#line 112 "grammar.y" +{ config.my_domain = yyvsp[0].cptr; ; + break;} +case 20: +#line 114 "grammar.y" +{ +#ifdef TUNNEL_SUPPORT + config.tunnel_name = yyvsp[-2].cptr; + config.tunnel_port = yyvsp[0].num; +#else + log(LOG_WARNING, "Tunnel support was not compiled in."); +#endif + ; + break;} +case 21: +#line 122 "grammar.y" +{ config.ipAddr = yyvsp[0].cptr; ; + break;} +case 22: +#line 123 "grammar.y" +{ insert_acl(yyvsp[0].cptr, ACL_ALLOW); ; + break;} +case 23: +#line 124 "grammar.y" +{ insert_acl(yyvsp[0].cptr, ACL_DENY); ; + break;} +case 28: +#line 138 "grammar.y" +{ yyval.num = 1; ; + break;} +case 29: +#line 139 "grammar.y" +{ yyval.num = 0; ; + break;} +case 30: +#line 140 "grammar.y" +{ yyval.num = yyvsp[0].num; ; + break;} +} + /* the action file gets copied in in place of this dollarsign */ +#line 543 "/usr/share/misc/bison.simple" + + yyvsp -= yylen; + yyssp -= yylen; +#ifdef YYLSP_NEEDED + yylsp -= yylen; +#endif + +#if YYDEBUG != 0 + if (yydebug) + { + short *ssp1 = yyss - 1; + fprintf (stderr, "state stack now"); + while (ssp1 != yyssp) + fprintf (stderr, " %d", *++ssp1); + fprintf (stderr, "\n"); + } +#endif + + *++yyvsp = yyval; + +#ifdef YYLSP_NEEDED + yylsp++; + if (yylen == 0) + { + yylsp->first_line = yylloc.first_line; + yylsp->first_column = yylloc.first_column; + yylsp->last_line = (yylsp-1)->last_line; + yylsp->last_column = (yylsp-1)->last_column; + yylsp->text = 0; + } + else + { + yylsp->last_line = (yylsp+yylen-1)->last_line; + yylsp->last_column = (yylsp+yylen-1)->last_column; + } +#endif + + /* Now "shift" the result of the reduction. + Determine what state that goes to, + based on the state we popped back to + and the rule number reduced by. */ + + yyn = yyr1[yyn]; + + yystate = yypgoto[yyn - YYNTBASE] + *yyssp; + if (yystate >= 0 && yystate <= YYLAST && yycheck[yystate] == *yyssp) + yystate = yytable[yystate]; + else + yystate = yydefgoto[yyn - YYNTBASE]; + + goto yynewstate; + +yyerrlab: /* here on detecting error */ + + if (! yyerrstatus) + /* If not already recovering from an error, report this error. */ + { + ++yynerrs; + +#ifdef YYERROR_VERBOSE + yyn = yypact[yystate]; + + if (yyn > YYFLAG && yyn < YYLAST) + { + int size = 0; + char *msg; + int x, count; + + count = 0; + /* Start X at -yyn if nec to avoid negative indexes in yycheck. */ + for (x = (yyn < 0 ? -yyn : 0); + x < (sizeof(yytname) / sizeof(char *)); x++) + if (yycheck[x + yyn] == x) + size += strlen(yytname[x]) + 15, count++; + msg = (char *) malloc(size + 15); + if (msg != 0) + { + strcpy(msg, "parse error"); + + if (count < 5) + { + count = 0; + for (x = (yyn < 0 ? -yyn : 0); + x < (sizeof(yytname) / sizeof(char *)); x++) + if (yycheck[x + yyn] == x) + { + strcat(msg, count == 0 ? ", expecting `" : " or `"); + strcat(msg, yytname[x]); + strcat(msg, "'"); + count++; + } + } + yyerror(msg); + free(msg); + } + else + yyerror ("parse error; also virtual memory exceeded"); + } + else +#endif /* YYERROR_VERBOSE */ + yyerror("parse error"); + } + + goto yyerrlab1; +yyerrlab1: /* here on error raised explicitly by an action */ + + if (yyerrstatus == 3) + { + /* if just tried and failed to reuse lookahead token after an error, discard it. */ + + /* return failure if at end of input */ + if (yychar == YYEOF) + YYABORT; + +#if YYDEBUG != 0 + if (yydebug) + fprintf(stderr, "Discarding token %d (%s).\n", yychar, yytname[yychar1]); +#endif + + yychar = YYEMPTY; + } + + /* Else will try to reuse lookahead token + after shifting the error token. */ + + yyerrstatus = 3; /* Each real token shifted decrements this */ + + goto yyerrhandle; + +yyerrdefault: /* current state does not do anything special for the error token. */ + +#if 0 + /* This is wrong; only states that explicitly want error tokens + should shift them. */ + yyn = yydefact[yystate]; /* If its default is to accept any token, ok. Otherwise pop it.*/ + if (yyn) goto yydefault; +#endif + +yyerrpop: /* pop the current state because it cannot handle the error token */ + + if (yyssp == yyss) YYABORT; + yyvsp--; + yystate = *--yyssp; +#ifdef YYLSP_NEEDED + yylsp--; +#endif + +#if YYDEBUG != 0 + if (yydebug) + { + short *ssp1 = yyss - 1; + fprintf (stderr, "Error: state stack now"); + while (ssp1 != yyssp) + fprintf (stderr, " %d", *++ssp1); + fprintf (stderr, "\n"); + } +#endif + +yyerrhandle: + + yyn = yypact[yystate]; + if (yyn == YYFLAG) + goto yyerrdefault; + + yyn += YYTERROR; + if (yyn < 0 || yyn > YYLAST || yycheck[yyn] != YYTERROR) + goto yyerrdefault; + + yyn = yytable[yyn]; + if (yyn < 0) + { + if (yyn == YYFLAG) + goto yyerrpop; + yyn = -yyn; + goto yyreduce; + } + else if (yyn == 0) + goto yyerrpop; + + if (yyn == YYFINAL) + YYACCEPT; + +#if YYDEBUG != 0 + if (yydebug) + fprintf(stderr, "Shifting error token, "); +#endif + + *++yyvsp = yylval; +#ifdef YYLSP_NEEDED + *++yylsp = yylloc; +#endif + + yystate = yyn; + goto yynewstate; + + yyacceptlab: + /* YYACCEPT comes here. */ + if (yyfree_stacks) + { + free (yyss); + free (yyvs); +#ifdef YYLSP_NEEDED + free (yyls); +#endif + } + return 0; + + yyabortlab: + /* YYABORT comes here. */ + if (yyfree_stacks) + { + free (yyss); + free (yyvs); +#ifdef YYLSP_NEEDED + free (yyls); +#endif + } + return 1; +} +#line 148 "grammar.y" + + +extern unsigned int yylineno; + +void yyerror(char *s) +{ + fprintf(stderr, "Line %d: %s\n", yylineno, s); +} diff --git a/src/grammar.h b/src/grammar.h new file mode 100644 index 0000000..903de74 --- /dev/null +++ b/src/grammar.h @@ -0,0 +1,35 @@ +typedef union { + unsigned int num; + char *cptr; + void *ptr; +} YYSTYPE; +#define KW_PORT 257 +#define KW_LISTEN 258 +#define KW_LOGFILE 259 +#define KW_PIDFILE 260 +#define KW_SYSLOG 261 +#define KW_MAXCLIENTS 262 +#define KW_MAXSPARESERVERS 263 +#define KW_MINSPARESERVERS 264 +#define KW_STARTSERVERS 265 +#define KW_MAXREQUESTSPERCHILD 266 +#define KW_TIMEOUT 267 +#define KW_USER 268 +#define KW_GROUP 269 +#define KW_ANONYMOUS 270 +#define KW_FILTER 271 +#define KW_XTINYPROXY 272 +#define KW_TUNNEL 273 +#define KW_ALLOW 274 +#define KW_DENY 275 +#define KW_YES 276 +#define KW_NO 277 +#define IDENTIFIER 278 +#define NUMBER 279 +#define STRING 280 +#define NUMERIC_ADDRESS 281 +#define STRING_ADDRESS 282 +#define NETMASK_ADDRESS 283 + + +extern YYSTYPE yylval; diff --git a/src/grammar.y b/src/grammar.y new file mode 100644 index 0000000..4cc1261 --- /dev/null +++ b/src/grammar.y @@ -0,0 +1,155 @@ +/* $Id: grammar.y,v 1.1 2000-09-12 00:12:52 rjkaes Exp $ + * + * This is the grammar for tinyproxy's configuration file. It needs to be + * in sync with scanner.l. If you know more about yacc and lex than I do + * please update these files. + * + * Copyright (C) 2000 Robert James Kaes (rjkaes@flarenet.com) + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2, or (at your option) any + * later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + */ + +%{ + +#include "tinyproxy.h" + +#include "acl.h" +#include "anonymous.h" +#include "log.h" +#include "thread.h" + +void yyerror(char *s); +int yylex(void); + +%} + +%union { + unsigned int num; + char *cptr; + void *ptr; +} + +/* statements */ +%token KW_PORT KW_LISTEN +%token KW_LOGFILE KW_PIDFILE KW_SYSLOG +%token KW_MAXCLIENTS KW_MAXSPARESERVERS KW_MINSPARESERVERS KW_STARTSERVERS +%token KW_MAXREQUESTSPERCHILD +%token KW_TIMEOUT +%token KW_USER KW_GROUP +%token KW_ANONYMOUS KW_FILTER KW_XTINYPROXY KW_TUNNEL +%token KW_ALLOW KW_DENY + +/* yes/no switches */ +%token KW_YES KW_NO + +%token <cptr> IDENTIFIER +%token <num> NUMBER +%token <cptr> STRING +%token <cptr> NUMERIC_ADDRESS +%token <cptr> STRING_ADDRESS +%token <cptr> NETMASK_ADDRESS + +%type <num> yesno +%type <cptr> string +%type <cptr> network_address +%type <cptr> unique_address + +%% + +start + : /* empty */ + | start line + ; + +line + : '\n' + | statement '\n' + ; + +statement + : KW_PORT NUMBER { config.port = $2; } + | KW_TIMEOUT NUMBER { config.idletimeout = $2; } + | KW_SYSLOG yesno + { +#ifdef HAVE_SYSLOG_H + config.syslog = $2; +#else + log(LOG_WARNING, "Syslog support was not compiled in."); +#endif + } + | KW_MAXCLIENTS NUMBER { thread_configure(THREAD_MAXCLIENTS, $2); } + | KW_MAXSPARESERVERS NUMBER { thread_configure(THREAD_MAXSPARESERVERS, $2); } + | KW_MINSPARESERVERS NUMBER { thread_configure(THREAD_MINSPARESERVERS, $2); } + | KW_STARTSERVERS NUMBER { thread_configure(THREAD_STARTSERVERS, $2); } + | KW_MAXREQUESTSPERCHILD NUMBER { thread_configure(THREAD_MAXREQUESTSPERCHILD, $2); } + | KW_LOGFILE string + { + config.logf_name = $2; + if (!config.logf_name) { + fprintf(stderr, "bad log file\n"); + } + } + | KW_PIDFILE string { config.pidpath = $2; } + | KW_USER string { config.username = $2; } + | KW_GROUP string { config.group = $2; } + | KW_ANONYMOUS string { anon_insert($2); } + | KW_FILTER string + { +#ifdef FILTER_ENABLE + config.filter = $2; +#else + log(LOG_WARNING, "Filter support was not compiled in."); +#endif + } + | KW_XTINYPROXY network_address { config.my_domain = $2; } + | KW_TUNNEL unique_address ':' NUMBER + { +#ifdef TUNNEL_SUPPORT + config.tunnel_name = $2; + config.tunnel_port = $4; +#else + log(LOG_WARNING, "Tunnel support was not compiled in."); +#endif + } + | KW_LISTEN NUMERIC_ADDRESS { config.ipAddr = $2; } + | KW_ALLOW network_address { insert_acl($2, ACL_ALLOW); } + | KW_DENY network_address { insert_acl($2, ACL_DENY); } + ; + +network_address + : unique_address + | NETMASK_ADDRESS + ; + +unique_address + : STRING_ADDRESS + | NUMERIC_ADDRESS + ; + +yesno + : KW_YES { $$ = 1; } + | KW_NO { $$ = 0; } + | NUMBER { $$ = $1; } + ; + +string + : IDENTIFIER + | STRING + ; + +%% + +extern unsigned int yylineno; + +void yyerror(char *s) +{ + fprintf(stderr, "Line %d: %s\n", yylineno, s); +} diff --git a/src/scanner.c b/src/scanner.c new file mode 100644 index 0000000..4611cd7 --- /dev/null +++ b/src/scanner.c @@ -0,0 +1,1763 @@ +/* A lexical scanner generated by flex */ + +/* Scanner skeleton version: + * $Header: /home/muks/projects/tinyproxy.rsync/tinyproxy-devel/src/scanner.c,v 1.1 2000-09-12 00:12:52 rjkaes Exp $ + */ + +#define FLEX_SCANNER +#define YY_FLEX_MAJOR_VERSION 2 +#define YY_FLEX_MINOR_VERSION 5 + +#include <stdio.h> + + +/* cfront 1.2 defines "c_plusplus" instead of "__cplusplus" */ +#ifdef c_plusplus +#ifndef __cplusplus +#define __cplusplus +#endif +#endif + + +#ifdef __cplusplus + +#include <stdlib.h> +#include <unistd.h> + +/* Use prototypes in function declarations. */ +#define YY_USE_PROTOS + +/* The "const" storage-class-modifier is valid. */ +#define YY_USE_CONST + +#else /* ! __cplusplus */ + +#if __STDC__ + +#define YY_USE_PROTOS +#define YY_USE_CONST + +#endif /* __STDC__ */ +#endif /* ! __cplusplus */ + +#ifdef __TURBOC__ + #pragma warn -rch + #pragma warn -use +#include <io.h> +#include <stdlib.h> +#define YY_USE_CONST +#define YY_USE_PROTOS +#endif + +#ifdef YY_USE_CONST +#define yyconst const +#else +#define yyconst +#endif + + +#ifdef YY_USE_PROTOS +#define YY_PROTO(proto) proto +#else +#define YY_PROTO(proto) () +#endif + +/* Returned upon end-of-file. */ +#define YY_NULL 0 + +/* Promotes a possibly negative, possibly signed char to an unsigned + * integer for use as an array index. If the signed char is negative, + * we want to instead treat it as an 8-bit unsigned char, hence the + * double cast. + */ +#define YY_SC_TO_UI(c) ((unsigned int) (unsigned char) c) + +/* Enter a start condition. This macro really ought to take a parameter, + * but we do it the disgusting crufty way forced on us by the ()-less + * definition of BEGIN. + */ +#define BEGIN yy_start = 1 + 2 * + +/* Translate the current start state into a value that can be later handed + * to BEGIN to return to the state. The YYSTATE alias is for lex + * compatibility. + */ +#define YY_START ((yy_start - 1) / 2) +#define YYSTATE YY_START + +/* Action number for EOF rule of a given start state. */ +#define YY_STATE_EOF(state) (YY_END_OF_BUFFER + state + 1) + +/* Special action meaning "start processing a new file". */ +#define YY_NEW_FILE yyrestart( yyin ) + +#define YY_END_OF_BUFFER_CHAR 0 + +/* Size of default input buffer. */ +#define YY_BUF_SIZE 16384 + +typedef struct yy_buffer_state *YY_BUFFER_STATE; + +extern int yyleng; +extern FILE *yyin, *yyout; + +#define EOB_ACT_CONTINUE_SCAN 0 +#define EOB_ACT_END_OF_FILE 1 +#define EOB_ACT_LAST_MATCH 2 + +/* The funky do-while in the following #define is used to turn the definition + * int a single C statement (which needs a semi-colon terminator). This + * avoids problems with code like: + * + * if ( condition_holds ) + * yyless( 5 ); + * else + * do_something_else(); + * + * Prior to using the do-while the compiler would get upset at the + * "else" because it interpreted the "if" statement as being all + * done when it reached the ';' after the yyless() call. + */ + +/* Return all but the first 'n' matched characters back to the input stream. */ + +#define yyless(n) \ + do \ + { \ + /* Undo effects of setting up yytext. */ \ + *yy_cp = yy_hold_char; \ + YY_RESTORE_YY_MORE_OFFSET \ + yy_c_buf_p = yy_cp = yy_bp + n - YY_MORE_ADJ; \ + YY_DO_BEFORE_ACTION; /* set up yytext again */ \ + } \ + while ( 0 ) + +#define unput(c) yyunput( c, yytext_ptr ) + +/* The following is because we cannot portably get our hands on size_t + * (without autoconf's help, which isn't available because we want + * flex-generated scanners to compile on their own). + */ +typedef unsigned int yy_size_t; + + +struct yy_buffer_state + { + FILE *yy_input_file; + + char *yy_ch_buf; /* input buffer */ + char *yy_buf_pos; /* current position in input buffer */ + + /* Size of input buffer in bytes, not including room for EOB + * characters. + */ + yy_size_t yy_buf_size; + + /* Number of characters read into yy_ch_buf, not including EOB + * characters. + */ + int yy_n_chars; + + /* Whether we "own" the buffer - i.e., we know we created it, + * and can realloc() it to grow it, and should free() it to + * delete it. + */ + int yy_is_our_buffer; + + /* Whether this is an "interactive" input source; if so, and + * if we're using stdio for input, then we want to use getc() + * instead of fread(), to make sure we stop fetching input after + * each newline. + */ + int yy_is_interactive; + + /* Whether we're considered to be at the beginning of a line. + * If so, '^' rules will be active on the next match, otherwise + * not. + */ + int yy_at_bol; + + /* Whether to try to fill the input buffer when we reach the + * end of it. + */ + int yy_fill_buffer; + + int yy_buffer_status; +#define YY_BUFFER_NEW 0 +#define YY_BUFFER_NORMAL 1 + /* When an EOF's been seen but there's still some text to process + * then we mark the buffer as YY_EOF_PENDING, to indicate that we + * shouldn't try reading from the input source any more. We might + * still have a bunch of tokens to match, though, because of + * possible backing-up. + * + * When we actually see the EOF, we change the status to "new" + * (via yyrestart()), so that the user can continue scanning by + * just pointing yyin at a new input file. + */ +#define YY_BUFFER_EOF_PENDING 2 + }; + +static YY_BUFFER_STATE yy_current_buffer = 0; + +/* We provide macros for accessing buffer states in case in the + * future we want to put the buffer states in a more general + * "scanner state". + */ +#define YY_CURRENT_BUFFER yy_current_buffer + + +/* yy_hold_char holds the character lost when yytext is formed. */ +static char yy_hold_char; + +static int yy_n_chars; /* number of characters read into yy_ch_buf */ + + +int yyleng; + +/* Points to current character in buffer. */ +static char *yy_c_buf_p = (char *) 0; +static int yy_init = 1; /* whether we need to initialize */ +static int yy_start = 0; /* start state number */ + +/* Flag which is used to allow yywrap()'s to do buffer switches + * instead of setting up a fresh yyin. A bit of a hack ... + */ +static int yy_did_buffer_switch_on_eof; + +void yyrestart YY_PROTO(( FILE *input_file )); + +void yy_switch_to_buffer YY_PROTO(( YY_BUFFER_STATE new_buffer )); +void yy_load_buffer_state YY_PROTO(( void )); +YY_BUFFER_STATE yy_create_buffer YY_PROTO(( FILE *file, int size )); +void yy_delete_buffer YY_PROTO(( YY_BUFFER_STATE b )); +void yy_init_buffer YY_PROTO(( YY_BUFFER_STATE b, FILE *file )); +void yy_flush_buffer YY_PROTO(( YY_BUFFER_STATE b )); +#define YY_FLUSH_BUFFER yy_flush_buffer( yy_current_buffer ) + +YY_BUFFER_STATE yy_scan_buffer YY_PROTO(( char *base, yy_size_t size )); +YY_BUFFER_STATE yy_scan_string YY_PROTO(( yyconst char *yy_str )); +YY_BUFFER_STATE yy_scan_bytes YY_PROTO(( yyconst char *bytes, int len )); + +static void *yy_flex_alloc YY_PROTO(( yy_size_t )); +static void *yy_flex_realloc YY_PROTO(( void *, yy_size_t )); +static void yy_flex_free YY_PROTO(( void * )); + +#define yy_new_buffer yy_create_buffer + +#define yy_set_interactive(is_interactive) \ + { \ + if ( ! yy_current_buffer ) \ + yy_current_buffer = yy_create_buffer( yyin, YY_BUF_SIZE ); \ + yy_current_buffer->yy_is_interactive = is_interactive; \ + } + +#define yy_set_bol(at_bol) \ + { \ + if ( ! yy_current_buffer ) \ + yy_current_buffer = yy_create_buffer( yyin, YY_BUF_SIZE ); \ + yy_current_buffer->yy_at_bol = at_bol; \ + } + +#define YY_AT_BOL() (yy_current_buffer->yy_at_bol) + + +#define yywrap() 1 +#define YY_SKIP_YYWRAP +typedef unsigned char YY_CHAR; +FILE *yyin = (FILE *) 0, *yyout = (FILE *) 0; +typedef int yy_state_type; +extern char *yytext; +#define yytext_ptr yytext + +static yy_state_type yy_get_previous_state YY_PROTO(( void )); +static yy_state_type yy_try_NUL_trans YY_PROTO(( yy_state_type current_state )); +static int yy_get_next_buffer YY_PROTO(( void )); +static void yy_fatal_error YY_PROTO(( yyconst char msg[] )); + +/* Done after the current pattern has been matched and before the + * corresponding action - sets up yytext. + */ +#define YY_DO_BEFORE_ACTION \ + yytext_ptr = yy_bp; \ + yyleng = (int) (yy_cp - yy_bp); \ + yy_hold_char = *yy_cp; \ + *yy_cp = '\0'; \ + yy_c_buf_p = yy_cp; + +#define YY_NUM_RULES 22 +#define YY_END_OF_BUFFER 23 +static yyconst short int yy_accept[59] = + { 0, + 0, 0, 0, 0, 23, 22, 3, 2, 10, 22, + 22, 22, 6, 6, 7, 18, 17, 22, 3, 0, + 1, 9, 0, 0, 0, 0, 5, 0, 6, 7, + 18, 16, 11, 12, 13, 14, 15, 8, 21, 0, + 5, 4, 6, 0, 0, 5, 6, 0, 0, 0, + 0, 19, 0, 0, 19, 20, 19, 0 + } ; + +static yyconst int yy_ec[256] = + { 0, + 1, 1, 1, 1, 1, 1, 1, 1, 2, 3, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 2, 1, 4, 5, 1, 1, 1, 6, 1, + 1, 1, 1, 1, 7, 8, 9, 10, 11, 11, + 11, 11, 11, 11, 11, 11, 11, 12, 1, 1, + 1, 1, 1, 1, 14, 15, 15, 15, 15, 15, + 15, 15, 15, 15, 15, 15, 15, 16, 15, 15, + 15, 17, 15, 18, 15, 19, 15, 20, 15, 15, + 1, 13, 1, 1, 7, 1, 14, 15, 15, 15, + + 15, 15, 15, 15, 15, 15, 15, 15, 15, 16, + 15, 15, 15, 17, 15, 18, 15, 19, 15, 20, + 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1 + } ; + +static yyconst int yy_meta[21] = + { 0, + 1, 1, 1, 2, 1, 1, 3, 4, 1, 3, + 3, 1, 2, 3, 3, 3, 3, 3, 3, 3 + } ; + +static yyconst short int yy_base[66] = + { 0, + 0, 0, 17, 18, 119, 126, 86, 126, 126, 69, + 17, 60, 24, 16, 38, 0, 126, 36, 62, 54, + 126, 126, 45, 39, 26, 31, 29, 48, 50, 55, + 0, 126, 126, 126, 126, 126, 126, 126, 59, 63, + 65, 0, 67, 69, 71, 73, 75, 79, 35, 81, + 83, 86, 20, 88, 90, 92, 94, 126, 105, 109, + 111, 113, 117, 121, 22 + } ; + +static yyconst short int yy_def[66] = + { 0, + 58, 1, 59, 59, 58, 58, 58, 58, 58, 60, + 58, 61, 61, 61, 62, 63, 58, 64, 58, 60, + 58, 58, 58, 61, 65, 65, 14, 14, 14, 62, + 63, 58, 58, 58, 58, 58, 58, 58, 26, 14, + 14, 28, 14, 26, 40, 28, 28, 28, 61, 26, + 48, 28, 61, 58, 52, 58, 52, 0, 58, 58, + 58, 58, 58, 58, 58 + } ; + +static yyconst short int yy_nxt[147] = + { 0, + 6, 7, 8, 9, 10, 11, 12, 6, 6, 13, + 14, 6, 6, 15, 15, 15, 15, 15, 15, 15, + 17, 17, 22, 26, 39, 29, 29, 50, 23, 18, + 18, 26, 24, 27, 27, 24, 24, 24, 41, 41, + 40, 40, 44, 28, 24, 25, 25, 24, 24, 33, + 38, 34, 35, 36, 37, 25, 21, 42, 42, 43, + 43, 24, 25, 19, 24, 24, 25, 25, 24, 24, + 44, 21, 45, 45, 46, 46, 47, 47, 48, 48, + 49, 49, 46, 46, 47, 47, 50, 19, 51, 51, + 52, 52, 53, 53, 54, 55, 55, 56, 56, 57, + + 57, 56, 56, 24, 24, 16, 16, 16, 16, 20, + 20, 20, 20, 24, 24, 30, 30, 31, 58, 31, + 31, 32, 32, 32, 32, 5, 58, 58, 58, 58, + 58, 58, 58, 58, 58, 58, 58, 58, 58, 58, + 58, 58, 58, 58, 58, 58 + } ; + +static yyconst short int yy_chk[147] = + { 0, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 3, 4, 11, 14, 65, 14, 14, 53, 11, 3, + 4, 13, 25, 13, 13, 25, 25, 26, 27, 27, + 26, 26, 49, 13, 15, 15, 24, 15, 15, 18, + 23, 18, 18, 18, 18, 28, 20, 28, 28, 29, + 29, 30, 30, 19, 30, 30, 39, 12, 39, 39, + 40, 10, 40, 40, 41, 41, 43, 43, 44, 44, + 45, 45, 46, 46, 47, 47, 48, 7, 48, 48, + 50, 50, 51, 51, 52, 52, 52, 54, 54, 55, + + 55, 56, 56, 57, 57, 59, 59, 59, 59, 60, + 60, 60, 60, 61, 61, 62, 62, 63, 5, 63, + 63, 64, 64, 64, 64, 58, 58, 58, 58, 58, + 58, 58, 58, 58, 58, 58, 58, 58, 58, 58, + 58, 58, 58, 58, 58, 58 + } ; + +static yy_state_type yy_last_accepting_state; +static char *yy_last_accepting_cpos; + +/* The intent behind this definition is that it'll catch + * any uses of REJECT which flex missed. + */ +#define REJECT reject_used_but_not_detected +#define yymore() yymore_used_but_not_detected +#define YY_MORE_ADJ 0 +#define YY_RESTORE_YY_MORE_OFFSET +char *yytext; +#line 1 "scanner.l" +#define INITIAL 0 +/* $Id: scanner.c,v 1.1 2000-09-12 00:12:52 rjkaes Exp $ + * + * This builds the scanner for the tinyproxy configuration file. This + * file needs to stay in sync with grammar.y. If someone knows lex and yacc + * better than I do, please update these files. + * + * Copyright (C) 2000 Robert James Kaes (rjkaes@flarenet.com) + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2, or (at your option) any + * later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + */ +#line 20 "scanner.l" + +#include "tinyproxy.h" +#include "grammar.h" +#include <string.h> +#include <stdio.h> + +struct keyword { + char *kw_name; + int kw_token; +}; + +static struct keyword keywords[] = { + /* statements */ + { "port", KW_PORT }, + { "logfile", KW_LOGFILE }, + { "syslog", KW_SYSLOG }, + { "maxclients", KW_MAXCLIENTS }, + { "maxspareservers", KW_MAXSPARESERVERS }, + { "minspareservers", KW_MINSPARESERVERS }, + { "startservers", KW_STARTSERVERS }, + { "maxrequestsperchild", KW_MAXREQUESTSPERCHILD }, + { "pidfile", KW_PIDFILE }, + { "timeout", KW_TIMEOUT }, + { "listen", KW_LISTEN }, + { "user", KW_USER }, + { "group", KW_GROUP }, + { "anonymous", KW_ANONYMOUS }, + { "filter", KW_FILTER }, + { "xtinyproxy", KW_XTINYPROXY }, + { "tunnel", KW_TUNNEL }, + { "allow", KW_ALLOW }, + { "deny", KW_DENY }, + + /* on/off switches */ + { "yes", KW_YES }, + { "on", KW_YES }, + { "no", KW_NO }, + { "off", KW_NO } + +}; + +#define YY_NO_UNPUT 1 + +#define MAX_REGEXP_LEN 1024 + +unsigned int yylineno = 1; +char tiny_buf[MAX_REGEXP_LEN]; +char *tiny_str; + +static int check_reserved_words(char *token); +static void append_string(int length, char *str); +static void append_char(char c); +#define string 1 + +#line 487 "lex.yy.c" + +/* Macros after this point can all be overridden by user definitions in + * section 1. + */ + +#ifndef YY_SKIP_YYWRAP +#ifdef __cplusplus +extern "C" int yywrap YY_PROTO(( void )); +#else +extern int yywrap YY_PROTO(( void )); +#endif +#endif + +#ifndef YY_NO_UNPUT +static void yyunput YY_PROTO(( int c, char *buf_ptr )); +#endif + +#ifndef yytext_ptr +static void yy_flex_strncpy YY_PROTO(( char *, yyconst char *, int )); +#endif + +#ifdef YY_NEED_STRLEN +static int yy_flex_strlen YY_PROTO(( yyconst char * )); +#endif + +#ifndef YY_NO_INPUT +#ifdef __cplusplus +static int yyinput YY_PROTO(( void )); +#else +static int input YY_PROTO(( void )); +#endif +#endif + +#if YY_STACK_USED +static int yy_start_stack_ptr = 0; +static int yy_start_stack_depth = 0; +static int *yy_start_stack = 0; +#ifndef YY_NO_PUSH_STATE +static void yy_push_state YY_PROTO(( int new_state )); +#endif +#ifndef YY_NO_POP_STATE +static void yy_pop_state YY_PROTO(( void )); +#endif +#ifndef YY_NO_TOP_STATE +static int yy_top_state YY_PROTO(( void )); +#endif + +#else +#define YY_NO_PUSH_STATE 1 +#define YY_NO_POP_STATE 1 +#define YY_NO_TOP_STATE 1 +#endif + +#ifdef YY_MALLOC_DECL +YY_MALLOC_DECL +#else +#if __STDC__ +#ifndef __cplusplus +#include <stdlib.h> +#endif +#else +/* Just try to get by without declaring the routines. This will fail + * miserably on non-ANSI systems for which sizeof(size_t) != sizeof(int) + * or sizeof(void*) != sizeof(int). + */ +#endif +#endif + +/* Amount of stuff to slurp up with each read. */ +#ifndef YY_READ_BUF_SIZE +#define YY_READ_BUF_SIZE 8192 +#endif + +/* Copy whatever the last rule matched to the standard output. */ + +#ifndef ECHO +/* This used to be an fputs(), but since the string might contain NUL's, + * we now use fwrite(). + */ +#define ECHO (void) fwrite( yytext, yyleng, 1, yyout ) +#endif + +/* Gets input and stuffs it into "buf". number of characters read, or YY_NULL, + * is returned in "result". + */ +#ifndef YY_INPUT +#define YY_INPUT(buf,result,max_size) \ + if ( yy_current_buffer->yy_is_interactive ) \ + { \ + int c = '*', n; \ + for ( n = 0; n < max_size && \ + (c = getc( yyin )) != EOF && c != '\n'; ++n ) \ + buf[n] = (char) c; \ + if ( c == '\n' ) \ + buf[n++] = (char) c; \ + if ( c == EOF && ferror( yyin ) ) \ + YY_FATAL_ERROR( "input in flex scanner failed" ); \ + result = n; \ + } \ + else if ( ((result = fread( buf, 1, max_size, yyin )) == 0) \ + && ferror( yyin ) ) \ + YY_FATAL_ERROR( "input in flex scanner failed" ); +#endif + +/* No semi-colon after return; correct usage is to write "yyterminate();" - + * we don't want an extra ';' after the "return" because that will cause + * some compilers to complain about unreachable statements. + */ +#ifndef yyterminate +#define yyterminate() return YY_NULL +#endif + +/* Number of entries by which start-condition stack grows. */ +#ifndef YY_START_STACK_INCR +#define YY_START_STACK_INCR 25 +#endif + +/* Report a fatal error. */ +#ifndef YY_FATAL_ERROR +#define YY_FATAL_ERROR(msg) yy_fatal_error( msg ) +#endif + +/* Default declaration of generated scanner - a define so the user can + * easily add parameters. + */ +#ifndef YY_DECL +#define YY_DECL int yylex YY_PROTO(( void )) +#endif + +/* Code executed at the beginning of each rule, after yytext and yyleng + * have been set up. + */ +#ifndef YY_USER_ACTION +#define YY_USER_ACTION +#endif + +/* Code executed at the end of each rule. */ +#ifndef YY_BREAK +#define YY_BREAK break; +#endif + +#define YY_RULE_SETUP \ + YY_USER_ACTION + +YY_DECL + { + register yy_state_type yy_current_state; + register char *yy_cp, *yy_bp; + register int yy_act; + +#line 84 "scanner.l" + + +#line 641 "lex.yy.c" + + if ( yy_init ) + { + yy_init = 0; + +#ifdef YY_USER_INIT + YY_USER_INIT; +#endif + + if ( ! yy_start ) + yy_start = 1; /* first start state */ + + if ( ! yyin ) + yyin = stdin; + + if ( ! yyout ) + yyout = stdout; + + if ( ! yy_current_buffer ) + yy_current_buffer = + yy_create_buffer( yyin, YY_BUF_SIZE ); + + yy_load_buffer_state(); + } + + while ( 1 ) /* loops until end-of-file is reached */ + { + yy_cp = yy_c_buf_p; + + /* Support of yytext. */ + *yy_cp = yy_hold_char; + + /* yy_bp points to the position in yy_ch_buf of the start of + * the current run. + */ + yy_bp = yy_cp; + + yy_current_state = yy_start; +yy_match: + do + { + register YY_CHAR yy_c = yy_ec[YY_SC_TO_UI(*yy_cp)]; + if ( yy_accept[yy_current_state] ) + { + yy_last_accepting_state = yy_current_state; + yy_last_accepting_cpos = yy_cp; + } + while ( yy_chk[yy_base[yy_current_state] + yy_c] != yy_current_state ) + { + yy_current_state = (int) yy_def[yy_current_state]; + if ( yy_current_state >= 59 ) + yy_c = yy_meta[(unsigned int) yy_c]; + } + yy_current_state = yy_nxt[yy_base[yy_current_state] + (unsigned int) yy_c]; + ++yy_cp; + } + while ( yy_base[yy_current_state] != 126 ); + +yy_find_action: + yy_act = yy_accept[yy_current_state]; + if ( yy_act == 0 ) + { /* have to back up */ + yy_cp = yy_last_accepting_cpos; + yy_current_state = yy_last_accepting_state; + yy_act = yy_accept[yy_current_state]; + } + + YY_DO_BEFORE_ACTION; + + +do_action: /* This label is used only to access EOF actions. */ + + + switch ( yy_act ) + { /* beginning of action switch */ + case 0: /* must back up */ + /* undo the effects of YY_DO_BEFORE_ACTION */ + *yy_cp = yy_hold_char; + yy_cp = yy_last_accepting_cpos; + yy_current_state = yy_last_accepting_state; + goto yy_find_action; + +case 1: +*yy_cp = yy_hold_char; /* undo effects of setting up yytext */ +yy_c_buf_p = yy_cp -= 1; +YY_DO_BEFORE_ACTION; /* set up yytext again */ +YY_RULE_SETUP +#line 86 "scanner.l" +; + YY_BREAK +case 2: +YY_RULE_SETUP +#line 87 "scanner.l" +{ yylineno++; return '\n'; } + YY_BREAK +case 3: +YY_RULE_SETUP +#line 88 "scanner.l" +; + YY_BREAK +case 4: +YY_RULE_SETUP +#line 89 "scanner.l" +{ yylval.num = strtol(yytext, NULL, 16); return NUMBER; } + YY_BREAK +case 5: +YY_RULE_SETUP +#line 90 "scanner.l" +{ yylval.num = strtol(yytext, NULL, 8); return NUMBER; } + YY_BREAK +case 6: +YY_RULE_SETUP +#line 91 "scanner.l" +{ yylval.num = atoi(yytext); return NUMBER; } + YY_BREAK +case 7: +YY_RULE_SETUP +#line 92 "scanner.l" +{ return check_reserved_words(yytext); } + YY_BREAK +case 8: +YY_RULE_SETUP +#line 93 "scanner.l" +{ return ':'; } + YY_BREAK +case 9: +*yy_cp = yy_hold_char; /* undo effects of setting up yytext */ +yy_c_buf_p = yy_cp = yy_bp + 1; +YY_DO_BEFORE_ACTION; /* set up yytext again */ +YY_RULE_SETUP +#line 94 "scanner.l" +{ return '/'; } + YY_BREAK +case 10: +YY_RULE_SETUP +#line 95 "scanner.l" +{ + tiny_str = tiny_buf; + BEGIN(string); + } + YY_BREAK +case 11: +YY_RULE_SETUP +#line 99 "scanner.l" +{ append_char(7); } + YY_BREAK +case 12: +YY_RULE_SETUP +#line 100 "scanner.l" +{ append_char(10); } + YY_BREAK +case 13: +YY_RULE_SETUP +#line 101 "scanner.l" +{ append_char(13); } + YY_BREAK +case 14: +YY_RULE_SETUP +#line 102 "scanner.l" +{ append_char(9); } + YY_BREAK +case 15: +YY_RULE_SETUP +#line 103 "scanner.l" +{ append_char(11); } + YY_BREAK +case 16: +YY_RULE_SETUP +#line 104 "scanner.l" +{ append_string(1, yytext + 1); } + YY_BREAK +case 17: +YY_RULE_SETUP +#line 105 "scanner.l" +{ + BEGIN(INITIAL); + yylval.cptr = strdup(tiny_buf); + return STRING; + } + YY_BREAK +case 18: +YY_RULE_SETUP +#line 110 "scanner.l" +{ append_string(strlen(yytext), yytext); } + YY_BREAK +case 19: +YY_RULE_SETUP +#line 113 "scanner.l" +{ yylval.cptr = strdup(yytext); return NUMERIC_ADDRESS; } + YY_BREAK +case 20: +YY_RULE_SETUP +#line 114 "scanner.l" +{ yylval.cptr = strdup(yytext); return NETMASK_ADDRESS; } + YY_BREAK +case 21: +YY_RULE_SETUP +#line 115 "scanner.l" +{ yylval.cptr = strdup(yytext); return STRING_ADDRESS; } + YY_BREAK +case 22: +YY_RULE_SETUP +#line 118 "scanner.l" +ECHO; + YY_BREAK +#line 847 "lex.yy.c" +case YY_STATE_EOF(INITIAL): +case YY_STATE_EOF(string): + yyterminate(); + + case YY_END_OF_BUFFER: + { + /* Amount of text matched not including the EOB char. */ + int yy_amount_of_matched_text = (int) (yy_cp - yytext_ptr) - 1; + + /* Undo the effects of YY_DO_BEFORE_ACTION. */ + *yy_cp = yy_hold_char; + YY_RESTORE_YY_MORE_OFFSET + + if ( yy_current_buffer->yy_buffer_status == YY_BUFFER_NEW ) + { + /* We're scanning a new file or input source. It's + * possible that this happened because the user + * just pointed yyin at a new source and called + * yylex(). If so, then we have to assure + * consistency between yy_current_buffer and our + * globals. Here is the right place to do so, because + * this is the first action (other than possibly a + * back-up) that will match for the new input source. + */ + yy_n_chars = yy_current_buffer->yy_n_chars; + yy_current_buffer->yy_input_file = yyin; + yy_current_buffer->yy_buffer_status = YY_BUFFER_NORMAL; + } + + /* Note that here we test for yy_c_buf_p "<=" to the position + * of the first EOB in the buffer, since yy_c_buf_p will + * already have been incremented past the NUL character + * (since all states make transitions on EOB to the + * end-of-buffer state). Contrast this with the test + * in input(). + */ + if ( yy_c_buf_p <= &yy_current_buffer->yy_ch_buf[yy_n_chars] ) + { /* This was really a NUL. */ + yy_state_type yy_next_state; + + yy_c_buf_p = yytext_ptr + yy_amount_of_matched_text; + + yy_current_state = yy_get_previous_state(); + + /* Okay, we're now positioned to make the NUL + * transition. We couldn't have + * yy_get_previous_state() go ahead and do it + * for us because it doesn't know how to deal + * with the possibility of jamming (and we don't + * want to build jamming into it because then it + * will run more slowly). + */ + + yy_next_state = yy_try_NUL_trans( yy_current_state ); + + yy_bp = yytext_ptr + YY_MORE_ADJ; + + if ( yy_next_state ) + { + /* Consume the NUL. */ + yy_cp = ++yy_c_buf_p; + yy_current_state = yy_next_state; + goto yy_match; + } + + else + { + yy_cp = yy_c_buf_p; + goto yy_find_action; + } + } + + else switch ( yy_get_next_buffer() ) + { + case EOB_ACT_END_OF_FILE: + { + yy_did_buffer_switch_on_eof = 0; + + if ( yywrap() ) + { + /* Note: because we've taken care in + * yy_get_next_buffer() to have set up + * yytext, we can now set up + * yy_c_buf_p so that if some total + * hoser (like flex itself) wants to + * call the scanner after we return the + * YY_NULL, it'll still work - another + * YY_NULL will get returned. + */ + yy_c_buf_p = yytext_ptr + YY_MORE_ADJ; + + yy_act = YY_STATE_EOF(YY_START); + goto do_action; + } + + else + { + if ( ! yy_did_buffer_switch_on_eof ) + YY_NEW_FILE; + } + break; + } + + case EOB_ACT_CONTINUE_SCAN: + yy_c_buf_p = + yytext_ptr + yy_amount_of_matched_text; + + yy_current_state = yy_get_previous_state(); + + yy_cp = yy_c_buf_p; + yy_bp = yytext_ptr + YY_MORE_ADJ; + goto yy_match; + + case EOB_ACT_LAST_MATCH: + yy_c_buf_p = + &yy_current_buffer->yy_ch_buf[yy_n_chars]; + + yy_current_state = yy_get_previous_state(); + + yy_cp = yy_c_buf_p; + yy_bp = yytext_ptr + YY_MORE_ADJ; + goto yy_find_action; + } + break; + } + + default: + YY_FATAL_ERROR( + "fatal flex scanner internal error--no action found" ); + } /* end of action switch */ + } /* end of scanning one token */ + } /* end of yylex */ + + +/* yy_get_next_buffer - try to read in a new buffer + * + * Returns a code representing an action: + * EOB_ACT_LAST_MATCH - + * EOB_ACT_CONTINUE_SCAN - continue scanning from current position + * EOB_ACT_END_OF_FILE - end of file + */ + +static int yy_get_next_buffer() + { + register char *dest = yy_current_buffer->yy_ch_buf; + register char *source = yytext_ptr; + register int number_to_move, i; + int ret_val; + + if ( yy_c_buf_p > &yy_current_buffer->yy_ch_buf[yy_n_chars + 1] ) + YY_FATAL_ERROR( + "fatal flex scanner internal error--end of buffer missed" ); + + if ( yy_current_buffer->yy_fill_buffer == 0 ) + { /* Don't try to fill the buffer, so this is an EOF. */ + if ( yy_c_buf_p - yytext_ptr - YY_MORE_ADJ == 1 ) + { + /* We matched a single character, the EOB, so + * treat this as a final EOF. + */ + return EOB_ACT_END_OF_FILE; + } + + else + { + /* We matched some text prior to the EOB, first + * process it. + */ + return EOB_ACT_LAST_MATCH; + } + } + + /* Try to read more data. */ + + /* First move last chars to start of buffer. */ + number_to_move = (int) (yy_c_buf_p - yytext_ptr) - 1; + + for ( i = 0; i < number_to_move; ++i ) + *(dest++) = *(source++); + + if ( yy_current_buffer->yy_buffer_status == YY_BUFFER_EOF_PENDING ) + /* don't do the read, it's not guaranteed to return an EOF, + * just force an EOF + */ + yy_current_buffer->yy_n_chars = yy_n_chars = 0; + + else + { + int num_to_read = + yy_current_buffer->yy_buf_size - number_to_move - 1; + + while ( num_to_read <= 0 ) + { /* Not enough room in the buffer - grow it. */ +#ifdef YY_USES_REJECT + YY_FATAL_ERROR( +"input buffer overflow, can't enlarge buffer because scanner uses REJECT" ); +#else + + /* just a shorter name for the current buffer */ + YY_BUFFER_STATE b = yy_current_buffer; + + int yy_c_buf_p_offset = + (int) (yy_c_buf_p - b->yy_ch_buf); + + if ( b->yy_is_our_buffer ) + { + int new_size = b->yy_buf_size * 2; + + if ( new_size <= 0 ) + b->yy_buf_size += b->yy_buf_size / 8; + else + b->yy_buf_size *= 2; + + b->yy_ch_buf = (char *) + /* Include room in for 2 EOB chars. */ + yy_flex_realloc( (void *) b->yy_ch_buf, + b->yy_buf_size + 2 ); + } + else + /* Can't grow it, we don't own it. */ + b->yy_ch_buf = 0; + + if ( ! b->yy_ch_buf ) + YY_FATAL_ERROR( + "fatal error - scanner input buffer overflow" ); + + yy_c_buf_p = &b->yy_ch_buf[yy_c_buf_p_offset]; + + num_to_read = yy_current_buffer->yy_buf_size - + number_to_move - 1; +#endif + } + + if ( num_to_read > YY_READ_BUF_SIZE ) + num_to_read = YY_READ_BUF_SIZE; + + /* Read in more data. */ + YY_INPUT( (&yy_current_buffer->yy_ch_buf[number_to_move]), + yy_n_chars, num_to_read ); + + yy_current_buffer->yy_n_chars = yy_n_chars; + } + + if ( yy_n_chars == 0 ) + { + if ( number_to_move == YY_MORE_ADJ ) + { + ret_val = EOB_ACT_END_OF_FILE; + yyrestart( yyin ); + } + + else + { + ret_val = EOB_ACT_LAST_MATCH; + yy_current_buffer->yy_buffer_status = + YY_BUFFER_EOF_PENDING; + } + } + + else + ret_val = EOB_ACT_CONTINUE_SCAN; + + yy_n_chars += number_to_move; + yy_current_buffer->yy_ch_buf[yy_n_chars] = YY_END_OF_BUFFER_CHAR; + yy_current_buffer->yy_ch_buf[yy_n_chars + 1] = YY_END_OF_BUFFER_CHAR; + + yytext_ptr = &yy_current_buffer->yy_ch_buf[0]; + + return ret_val; + } + + +/* yy_get_previous_state - get the state just before the EOB char was reached */ + +static yy_state_type yy_get_previous_state() + { + register yy_state_type yy_current_state; + register char *yy_cp; + + yy_current_state = yy_start; + + for ( yy_cp = yytext_ptr + YY_MORE_ADJ; yy_cp < yy_c_buf_p; ++yy_cp ) + { + register YY_CHAR yy_c = (*yy_cp ? yy_ec[YY_SC_TO_UI(*yy_cp)] : 1); + if ( yy_accept[yy_current_state] ) + { + yy_last_accepting_state = yy_current_state; + yy_last_accepting_cpos = yy_cp; + } + while ( yy_chk[yy_base[yy_current_state] + yy_c] != yy_current_state ) + { + yy_current_state = (int) yy_def[yy_current_state]; + if ( yy_current_state >= 59 ) + yy_c = yy_meta[(unsigned int) yy_c]; + } + yy_current_state = yy_nxt[yy_base[yy_current_state] + (unsigned int) yy_c]; + } + + return yy_current_state; + } + + +/* yy_try_NUL_trans - try to make a transition on the NUL character + * + * synopsis + * next_state = yy_try_NUL_trans( current_state ); + */ + +#ifdef YY_USE_PROTOS +static yy_state_type yy_try_NUL_trans( yy_state_type yy_current_state ) +#else +static yy_state_type yy_try_NUL_trans( yy_current_state ) +yy_state_type yy_current_state; +#endif + { + register int yy_is_jam; + register char *yy_cp = yy_c_buf_p; + + register YY_CHAR yy_c = 1; + if ( yy_accept[yy_current_state] ) + { + yy_last_accepting_state = yy_current_state; + yy_last_accepting_cpos = yy_cp; + } + while ( yy_chk[yy_base[yy_current_state] + yy_c] != yy_current_state ) + { + yy_current_state = (int) yy_def[yy_current_state]; + if ( yy_current_state >= 59 ) + yy_c = yy_meta[(unsigned int) yy_c]; + } + yy_current_state = yy_nxt[yy_base[yy_current_state] + (unsigned int) yy_c]; + yy_is_jam = (yy_current_state == 58); + + return yy_is_jam ? 0 : yy_current_state; + } + + +#ifndef YY_NO_UNPUT +#ifdef YY_USE_PROTOS +static void yyunput( int c, register char *yy_bp ) +#else +static void yyunput( c, yy_bp ) +int c; +register char *yy_bp; +#endif + { + register char *yy_cp = yy_c_buf_p; + + /* undo effects of setting up yytext */ + *yy_cp = yy_hold_char; + + if ( yy_cp < yy_current_buffer->yy_ch_buf + 2 ) + { /* need to shift things up to make room */ + /* +2 for EOB chars. */ + register int number_to_move = yy_n_chars + 2; + register char *dest = &yy_current_buffer->yy_ch_buf[ + yy_current_buffer->yy_buf_size + 2]; + register char *source = + &yy_current_buffer->yy_ch_buf[number_to_move]; + + while ( source > yy_current_buffer->yy_ch_buf ) + *--dest = *--source; + + yy_cp += (int) (dest - source); + yy_bp += (int) (dest - source); + yy_current_buffer->yy_n_chars = + yy_n_chars = yy_current_buffer->yy_buf_size; + + if ( yy_cp < yy_current_buffer->yy_ch_buf + 2 ) + YY_FATAL_ERROR( "flex scanner push-back overflow" ); + } + + *--yy_cp = (char) c; + + + yytext_ptr = yy_bp; + yy_hold_char = *yy_cp; + yy_c_buf_p = yy_cp; + } +#endif /* ifndef YY_NO_UNPUT */ + + +#ifdef __cplusplus +static int yyinput() +#else +static int input() +#endif + { + int c; + + *yy_c_buf_p = yy_hold_char; + + if ( *yy_c_buf_p == YY_END_OF_BUFFER_CHAR ) + { + /* yy_c_buf_p now points to the character we want to return. + * If this occurs *before* the EOB characters, then it's a + * valid NUL; if not, then we've hit the end of the buffer. + */ + if ( yy_c_buf_p < &yy_current_buffer->yy_ch_buf[yy_n_chars] ) + /* This was really a NUL. */ + *yy_c_buf_p = '\0'; + + else + { /* need more input */ + int offset = yy_c_buf_p - yytext_ptr; + ++yy_c_buf_p; + + switch ( yy_get_next_buffer() ) + { + case EOB_ACT_LAST_MATCH: + /* This happens because yy_g_n_b() + * sees that we've accumulated a + * token and flags that we need to + * try matching the token before + * proceeding. But for input(), + * there's no matching to consider. + * So convert the EOB_ACT_LAST_MATCH + * to EOB_ACT_END_OF_FILE. + */ + + /* Reset buffer status. */ + yyrestart( yyin ); + + /* fall through */ + + case EOB_ACT_END_OF_FILE: + { + if ( yywrap() ) + return EOF; + + if ( ! yy_did_buffer_switch_on_eof ) + YY_NEW_FILE; +#ifdef __cplusplus + return yyinput(); +#else + return input(); +#endif + } + + case EOB_ACT_CONTINUE_SCAN: + yy_c_buf_p = yytext_ptr + offset; + break; + } + } + } + + c = *(unsigned char *) yy_c_buf_p; /* cast for 8-bit char's */ + *yy_c_buf_p = '\0'; /* preserve yytext */ + yy_hold_char = *++yy_c_buf_p; + + + return c; + } + + +#ifdef YY_USE_PROTOS +void yyrestart( FILE *input_file ) +#else +void yyrestart( input_file ) +FILE *input_file; +#endif + { + if ( ! yy_current_buffer ) + yy_current_buffer = yy_create_buffer( yyin, YY_BUF_SIZE ); + + yy_init_buffer( yy_current_buffer, input_file ); + yy_load_buffer_state(); + } + + +#ifdef YY_USE_PROTOS +void yy_switch_to_buffer( YY_BUFFER_STATE new_buffer ) +#else +void yy_switch_to_buffer( new_buffer ) +YY_BUFFER_STATE new_buffer; +#endif + { + if ( yy_current_buffer == new_buffer ) + return; + + if ( yy_current_buffer ) + { + /* Flush out information for old buffer. */ + *yy_c_buf_p = yy_hold_char; + yy_current_buffer->yy_buf_pos = yy_c_buf_p; + yy_current_buffer->yy_n_chars = yy_n_chars; + } + + yy_current_buffer = new_buffer; + yy_load_buffer_state(); + + /* We don't actually know whether we did this switch during + * EOF (yywrap()) processing, but the only time this flag + * is looked at is after yywrap() is called, so it's safe + * to go ahead and always set it. + */ + yy_did_buffer_switch_on_eof = 1; + } + + +#ifdef YY_USE_PROTOS +void yy_load_buffer_state( void ) +#else +void yy_load_buffer_state() +#endif + { + yy_n_chars = yy_current_buffer->yy_n_chars; + yytext_ptr = yy_c_buf_p = yy_current_buffer->yy_buf_pos; + yyin = yy_current_buffer->yy_input_file; + yy_hold_char = *yy_c_buf_p; + } + + +#ifdef YY_USE_PROTOS +YY_BUFFER_STATE yy_create_buffer( FILE *file, int size ) +#else +YY_BUFFER_STATE yy_create_buffer( file, size ) +FILE *file; +int size; +#endif + { + YY_BUFFER_STATE b; + + b = (YY_BUFFER_STATE) yy_flex_alloc( sizeof( struct yy_buffer_state ) ); + if ( ! b ) + YY_FATAL_ERROR( "out of dynamic memory in yy_create_buffer()" ); + + b->yy_buf_size = size; + + /* yy_ch_buf has to be 2 characters longer than the size given because + * we need to put in 2 end-of-buffer characters. + */ + b->yy_ch_buf = (char *) yy_flex_alloc( b->yy_buf_size + 2 ); + if ( ! b->yy_ch_buf ) + YY_FATAL_ERROR( "out of dynamic memory in yy_create_buffer()" ); + + b->yy_is_our_buffer = 1; + + yy_init_buffer( b, file ); + + return b; + } + + +#ifdef YY_USE_PROTOS +void yy_delete_buffer( YY_BUFFER_STATE b ) +#else +void yy_delete_buffer( b ) +YY_BUFFER_STATE b; +#endif + { + if ( ! b ) + return; + + if ( b == yy_current_buffer ) + yy_current_buffer = (YY_BUFFER_STATE) 0; + + if ( b->yy_is_our_buffer ) + yy_flex_free( (void *) b->yy_ch_buf ); + + yy_flex_free( (void *) b ); + } + + +#ifndef YY_ALWAYS_INTERACTIVE +#ifndef YY_NEVER_INTERACTIVE +extern int isatty YY_PROTO(( int )); +#endif +#endif + +#ifdef YY_USE_PROTOS +void yy_init_buffer( YY_BUFFER_STATE b, FILE *file ) +#else +void yy_init_buffer( b, file ) +YY_BUFFER_STATE b; +FILE *file; +#endif + + + { + yy_flush_buffer( b ); + + b->yy_input_file = file; + b->yy_fill_buffer = 1; + +#if YY_ALWAYS_INTERACTIVE + b->yy_is_interactive = 1; +#else +#if YY_NEVER_INTERACTIVE + b->yy_is_interactive = 0; +#else + b->yy_is_interactive = file ? (isatty( fileno(file) ) > 0) : 0; +#endif +#endif + } + + +#ifdef YY_USE_PROTOS +void yy_flush_buffer( YY_BUFFER_STATE b ) +#else +void yy_flush_buffer( b ) +YY_BUFFER_STATE b; +#endif + + { + if ( ! b ) + return; + + b->yy_n_chars = 0; + + /* We always need two end-of-buffer characters. The first causes + * a transition to the end-of-buffer state. The second causes + * a jam in that state. + */ + b->yy_ch_buf[0] = YY_END_OF_BUFFER_CHAR; + b->yy_ch_buf[1] = YY_END_OF_BUFFER_CHAR; + + b->yy_buf_pos = &b->yy_ch_buf[0]; + + b->yy_at_bol = 1; + b->yy_buffer_status = YY_BUFFER_NEW; + + if ( b == yy_current_buffer ) + yy_load_buffer_state(); + } + + +#ifndef YY_NO_SCAN_BUFFER +#ifdef YY_USE_PROTOS +YY_BUFFER_STATE yy_scan_buffer( char *base, yy_size_t size ) +#else +YY_BUFFER_STATE yy_scan_buffer( base, size ) +char *base; +yy_size_t size; +#endif + { + YY_BUFFER_STATE b; + + if ( size < 2 || + base[size-2] != YY_END_OF_BUFFER_CHAR || + base[size-1] != YY_END_OF_BUFFER_CHAR ) + /* They forgot to leave room for the EOB's. */ + return 0; + + b = (YY_BUFFER_STATE) yy_flex_alloc( sizeof( struct yy_buffer_state ) ); + if ( ! b ) + YY_FATAL_ERROR( "out of dynamic memory in yy_scan_buffer()" ); + + b->yy_buf_size = size - 2; /* "- 2" to take care of EOB's */ + b->yy_buf_pos = b->yy_ch_buf = base; + b->yy_is_our_buffer = 0; + b->yy_input_file = 0; + b->yy_n_chars = b->yy_buf_size; + b->yy_is_interactive = 0; + b->yy_at_bol = 1; + b->yy_fill_buffer = 0; + b->yy_buffer_status = YY_BUFFER_NEW; + + yy_switch_to_buffer( b ); + + return b; + } +#endif + + +#ifndef YY_NO_SCAN_STRING +#ifdef YY_USE_PROTOS +YY_BUFFER_STATE yy_scan_string( yyconst char *yy_str ) +#else +YY_BUFFER_STATE yy_scan_string( yy_str ) +yyconst char *yy_str; +#endif + { + int len; + for ( len = 0; yy_str[len]; ++len ) + ; + + return yy_scan_bytes( yy_str, len ); + } +#endif + + +#ifndef YY_NO_SCAN_BYTES +#ifdef YY_USE_PROTOS +YY_BUFFER_STATE yy_scan_bytes( yyconst char *bytes, int len ) +#else +YY_BUFFER_STATE yy_scan_bytes( bytes, len ) +yyconst char *bytes; +int len; +#endif + { + YY_BUFFER_STATE b; + char *buf; + yy_size_t n; + int i; + + /* Get memory for full buffer, including space for trailing EOB's. */ + n = len + 2; + buf = (char *) yy_flex_alloc( n ); + if ( ! buf ) + YY_FATAL_ERROR( "out of dynamic memory in yy_scan_bytes()" ); + + for ( i = 0; i < len; ++i ) + buf[i] = bytes[i]; + + buf[len] = buf[len+1] = YY_END_OF_BUFFER_CHAR; + + b = yy_scan_buffer( buf, n ); + if ( ! b ) + YY_FATAL_ERROR( "bad buffer in yy_scan_bytes()" ); + + /* It's okay to grow etc. this buffer, and we should throw it + * away when we're done. + */ + b->yy_is_our_buffer = 1; + + return b; + } +#endif + + +#ifndef YY_NO_PUSH_STATE +#ifdef YY_USE_PROTOS +static void yy_push_state( int new_state ) +#else +static void yy_push_state( new_state ) +int new_state; +#endif + { + if ( yy_start_stack_ptr >= yy_start_stack_depth ) + { + yy_size_t new_size; + + yy_start_stack_depth += YY_START_STACK_INCR; + new_size = yy_start_stack_depth * sizeof( int ); + + if ( ! yy_start_stack ) + yy_start_stack = (int *) yy_flex_alloc( new_size ); + + else + yy_start_stack = (int *) yy_flex_realloc( + (void *) yy_start_stack, new_size ); + + if ( ! yy_start_stack ) + YY_FATAL_ERROR( + "out of memory expanding start-condition stack" ); + } + + yy_start_stack[yy_start_stack_ptr++] = YY_START; + + BEGIN(new_state); + } +#endif + + +#ifndef YY_NO_POP_STATE +static void yy_pop_state() + { + if ( --yy_start_stack_ptr < 0 ) + YY_FATAL_ERROR( "start-condition stack underflow" ); + + BEGIN(yy_start_stack[yy_start_stack_ptr]); + } +#endif + + +#ifndef YY_NO_TOP_STATE +static int yy_top_state() + { + return yy_start_stack[yy_start_stack_ptr - 1]; + } +#endif + +#ifndef YY_EXIT_FAILURE +#define YY_EXIT_FAILURE 2 +#endif + +#ifdef YY_USE_PROTOS +static void yy_fatal_error( yyconst char msg[] ) +#else +static void yy_fatal_error( msg ) +char msg[]; +#endif + { + (void) fprintf( stderr, "%s\n", msg ); + exit( YY_EXIT_FAILURE ); + } + + + +/* Redefine yyless() so it works in section 3 code. */ + +#undef yyless +#define yyless(n) \ + do \ + { \ + /* Undo effects of setting up yytext. */ \ + yytext[yyleng] = yy_hold_char; \ + yy_c_buf_p = yytext + n; \ + yy_hold_char = *yy_c_buf_p; \ + *yy_c_buf_p = '\0'; \ + yyleng = n; \ + } \ + while ( 0 ) + + +/* Internal utility routines. */ + +#ifndef yytext_ptr +#ifdef YY_USE_PROTOS +static void yy_flex_strncpy( char *s1, yyconst char *s2, int n ) +#else +static void yy_flex_strncpy( s1, s2, n ) +char *s1; +yyconst char *s2; +int n; +#endif + { + register int i; + for ( i = 0; i < n; ++i ) + s1[i] = s2[i]; + } +#endif + +#ifdef YY_NEED_STRLEN +#ifdef YY_USE_PROTOS +static int yy_flex_strlen( yyconst char *s ) +#else +static int yy_flex_strlen( s ) +yyconst char *s; +#endif + { + register int n; + for ( n = 0; s[n]; ++n ) + ; + + return n; + } +#endif + + +#ifdef YY_USE_PROTOS +static void *yy_flex_alloc( yy_size_t size ) +#else +static void *yy_flex_alloc( size ) +yy_size_t size; +#endif + { + return (void *) malloc( size ); + } + +#ifdef YY_USE_PROTOS +static void *yy_flex_realloc( void *ptr, yy_size_t size ) +#else +static void *yy_flex_realloc( ptr, size ) +void *ptr; +yy_size_t size; +#endif + { + /* The cast to (char *) in the following accommodates both + * implementations that use char* generic pointers, and those + * that use void* generic pointers. It works with the latter + * because both ANSI C and C++ allow castless assignment from + * any pointer type to void*, and deal with argument conversions + * as though doing an assignment. + */ + return (void *) realloc( (char *) ptr, size ); + } + +#ifdef YY_USE_PROTOS +static void yy_flex_free( void *ptr ) +#else +static void yy_flex_free( ptr ) +void *ptr; +#endif + { + free( ptr ); + } + +#if YY_MAIN +int main() + { + yylex(); + return 0; + } +#endif +#line 118 "scanner.l" + + +int check_reserved_words(char *token) +{ + int i; + + for (i = 0; i < (sizeof(keywords) / sizeof(struct keyword)); i++) { + if (strcasecmp(keywords[i].kw_name, token) == 0) { + return keywords[i].kw_token; + } + } + yylval.cptr = strdup(token); + return IDENTIFIER; +} + +static void append_string(int length, char *s) +{ + int to_copy = min(MAX_REGEXP_LEN - (tiny_str - tiny_buf) - 1, length); + + memcpy(tiny_str, s, to_copy); + tiny_str += to_copy; + *tiny_str = 0; +} + +static void append_char(char c) +{ + *tiny_str = c; + tiny_str++; + *tiny_str = 0; +}
\ No newline at end of file diff --git a/src/scanner.l b/src/scanner.l new file mode 100644 index 0000000..3e984c4 --- /dev/null +++ b/src/scanner.l @@ -0,0 +1,147 @@ +/* $Id: scanner.l,v 1.1 2000-09-12 00:12:52 rjkaes Exp $ + * + * This builds the scanner for the tinyproxy configuration file. This + * file needs to stay in sync with grammar.y. If someone knows lex and yacc + * better than I do, please update these files. + * + * Copyright (C) 2000 Robert James Kaes (rjkaes@flarenet.com) + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2, or (at your option) any + * later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + */ +%{ + +#include "tinyproxy.h" +#include "grammar.h" +#include <string.h> +#include <stdio.h> + +struct keyword { + char *kw_name; + int kw_token; +}; + +static struct keyword keywords[] = { + /* statements */ + { "port", KW_PORT }, + { "logfile", KW_LOGFILE }, + { "syslog", KW_SYSLOG }, + { "maxclients", KW_MAXCLIENTS }, + { "maxspareservers", KW_MAXSPARESERVERS }, + { "minspareservers", KW_MINSPARESERVERS }, + { "startservers", KW_STARTSERVERS }, + { "maxrequestsperchild", KW_MAXREQUESTSPERCHILD }, + { "pidfile", KW_PIDFILE }, + { "timeout", KW_TIMEOUT }, + { "listen", KW_LISTEN }, + { "user", KW_USER }, + { "group", KW_GROUP }, + { "anonymous", KW_ANONYMOUS }, + { "filter", KW_FILTER }, + { "xtinyproxy", KW_XTINYPROXY }, + { "tunnel", KW_TUNNEL }, + { "allow", KW_ALLOW }, + { "deny", KW_DENY }, + + /* on/off switches */ + { "yes", KW_YES }, + { "on", KW_YES }, + { "no", KW_NO }, + { "off", KW_NO } + +}; + +#define YY_NO_UNPUT 1 + +#define MAX_REGEXP_LEN 1024 + +unsigned int yylineno = 1; +char tiny_buf[MAX_REGEXP_LEN]; +char *tiny_str; + +static int check_reserved_words(char *token); +static void append_string(int length, char *str); +static void append_char(char c); +%} + +%option noyywrap + +white [ \t] +digit [0-9] +alpha [a-zA-Z] +alphanum [a-zA-Z0-9] +word [^ \#'"\(\)\{\}\\;\n\t,|\.] + +%x string + +%% + +\#.*$ ; +\n { yylineno++; return '\n'; } +{white}+ ; +0x{digit}+ { yylval.num = strtol(yytext, NULL, 16); return NUMBER; } +0{digit}+ { yylval.num = strtol(yytext, NULL, 8); return NUMBER; } +{digit}+ { yylval.num = atoi(yytext); return NUMBER; } +{alpha}+ { return check_reserved_words(yytext); } +':' { return ':'; } +'/' { return '/'; } +\" { + tiny_str = tiny_buf; + BEGIN(string); + } +<string>\\a { append_char(7); } +<string>\\n { append_char(10); } +<string>\\r { append_char(13); } +<string>\\t { append_char(9); } +<string>\\v { append_char(11); } +<string>\\[^anrtv] { append_string(1, yytext + 1); } +<string>\" { + BEGIN(INITIAL); + yylval.cptr = strdup(tiny_buf); + return STRING; + } +<string>[^"\\]+ { append_string(strlen(yytext), yytext); } + + +({digit}{1,3}\.){3}{digit}{1,3} { yylval.cptr = strdup(yytext); return NUMERIC_ADDRESS; } +({digit}{1,3}\.){3}{digit}{1,3}\/{digit}+ { yylval.cptr = strdup(yytext); return NETMASK_ADDRESS; } +([-_a-z0-9]+\.)+[a-z]+ { yylval.cptr = strdup(yytext); return STRING_ADDRESS; } + + +%% + +int check_reserved_words(char *token) +{ + int i; + + for (i = 0; i < (sizeof(keywords) / sizeof(struct keyword)); i++) { + if (strcasecmp(keywords[i].kw_name, token) == 0) { + return keywords[i].kw_token; + } + } + yylval.cptr = strdup(token); + return IDENTIFIER; +} + +static void append_string(int length, char *s) +{ + int to_copy = min(MAX_REGEXP_LEN - (tiny_str - tiny_buf) - 1, length); + + memcpy(tiny_str, s, to_copy); + tiny_str += to_copy; + *tiny_str = 0; +} + +static void append_char(char c) +{ + *tiny_str = c; + tiny_str++; + *tiny_str = 0; +}
\ No newline at end of file |