diff -ruN links-current/Makefile.in links-current.p/Makefile.in --- links-current/Makefile.in Mon Jun 12 14:45:58 2000 +++ links-current.p/Makefile.in Tue Jun 13 16:28:28 2000 @@ -72,7 +72,7 @@ EXTRA_DIST = $(man_MANS) Unicode/* intl/* config2.h Makefile.gen BUGS TODO SITES bin_PROGRAMS = links -links_SOURCES = af_unix.c beos.c bfu.c bookmarks.c cache.c charsets.c connect.c cookies.c default.c dns.c error.c file.c finger.c ftp.c html.c html_r.c html_tbl.c http.c kbd.c language.c mailto.c main.c menu.c os_dep.c sched.c select.c session.c terminal.c types.c url.c view.c win32.c links.h os_dep.h os_depx.h setup.h codepage.h language.h codepage.inc entity.inc uni_7b.inc language.inc rebuild +links_SOURCES = af_unix.c beos.c bfu.c bookmarks.c cache.c charsets.c connect.c cookies.c default.c dns.c error.c file.c finger.c ftp.c html.c html_r.c html_tbl.c http.c kbd.c language.c mailto.c main.c menu.c os_dep.c sched.c select.c session.c terminal.c types.c url.c view.c parsedate.c win32.c links.h os_dep.h os_depx.h setup.h codepage.h language.h codepage.inc entity.inc uni_7b.inc language.inc rebuild datadir = $(prefix)/@DATADIRNAME@ LIBS = @LIBS@ @@ -89,7 +89,7 @@ links_OBJECTS = af_unix.o beos.o bfu.o bookmarks.o cache.o charsets.o \ connect.o cookies.o default.o dns.o error.o file.o finger.o ftp.o \ html.o html_r.o html_tbl.o http.o kbd.o language.o mailto.o main.o \ -menu.o os_dep.o sched.o select.o session.o terminal.o types.o url.o \ +menu.o os_dep.o sched.o select.o session.o terminal.o types.o url.o parsedate.o \ view.o win32.o links_LDADD = $(LDADD) links_DEPENDENCIES = @@ -116,7 +116,7 @@ all: all-redirect .SUFFIXES: -.SUFFIXES: .S .c .o .s +.SUFFIXES: .S .c .o .s .y $(srcdir)/Makefile.in: Makefile.am $(top_srcdir)/configure.in $(ACLOCAL_M4) cd $(top_srcdir) && $(AUTOMAKE) --gnu --include-deps Makefile @@ -194,6 +194,8 @@ .S.o: $(COMPILE) -c $< +.y.c: + bison $< -o `basename $< .y`.c mostlyclean-compile: -rm -f *.o core *.core diff -ruN links-current/cookies.c links-current.p/cookies.c --- links-current/cookies.c Sat Mar 25 18:53:10 2000 +++ links-current.p/cookies.c Tue Jun 13 16:28:28 2000 @@ -13,7 +13,7 @@ struct cookie *prev; unsigned char *name, *value; unsigned char *server; - unsigned char *expires; + time_t expires; unsigned char *path, *domain; int secure; int id; @@ -43,10 +43,9 @@ void free_cookie(struct cookie *c) { - mem_free(c->name); - mem_free(c->value); + if (c->name)mem_free(c->name); + if (c->value)mem_free(c->value); if (c->server) mem_free(c->server); - if (c->expires) mem_free(c->expires); if (c->path) mem_free(c->path); if (c->domain) mem_free(c->domain); } @@ -76,6 +75,7 @@ { struct cookie *cookie; struct c_server *cs; + char * expires_str; unsigned char *p, *q, *s, *server, *document; if (accept_cookies == ACCEPT_NONE) return 0; for (p = str; *p != ';' && *p; p++) if (WHITECHAR(*p)) return 0; @@ -87,7 +87,13 @@ cookie->name = memacpy(str, q - str); cookie->value = memacpy(q + 1, p - q - 1); cookie->server = stracpy(server); - cookie->expires = parse_header_param(str, "expires"); + expires_str = parse_header_param(str, "expires"); + if(expires_str){ + cookie->expires=parsedate(expires_str,NULL); + mem_free(expires_str); + } + else + cookie->expires=-1; if (!(cookie->path = parse_header_param(str, "path"))) { unsigned char *w; cookie->path = stracpy("/"); @@ -234,7 +240,9 @@ int cookie_expired(struct cookie *c) { - return 0; /* !!! FIXME */ + if(c->expires==-1 || c->expires>time(NULL)) + return 0; + return 1; } void send_cookies(unsigned char **s, int *l, unsigned char *url) @@ -271,15 +279,96 @@ void init_cookies() { - /* !!! FIXME: read cookies */ + FILE *in; + const int max_cookie_length=1024; + char tempb[max_cookie_length]; + struct cookie *c; + unsigned char *file_name; + char *pos,*pos1; + + file_name = stracpy(links_home); + add_to_strn(&file_name, "cookies"); + in = fopen(file_name, "r"); + mem_free(file_name); + if(in == NULL) + return; + while(!feof(in)){ + if(fgets(tempb,max_cookie_length,in)==NULL)break; + c = mem_alloc(sizeof(struct cookie)); + if(tempb[strlen(tempb)-1]=='\n') + tempb[strlen(tempb)-1]=0; + pos=strchr(tempb,' '); + if(!pos)continue; + *pos=0; + c->name=stracpy(tempb); + pos++; + pos1=pos; + pos=strchr(pos,' '); + if(!pos){free_cookie(c);mem_free(c);continue;} + *pos=0; + c->value=stracpy(pos1); + pos++; + pos1=pos; + pos=strchr(pos,' '); + if(!pos){free_cookie(c);mem_free(c);continue;} + + *pos=0; + c->server=stracpy(pos1); + pos++; + pos1=pos; + pos=strchr(pos,' '); + if(!pos){free_cookie(c);mem_free(c);continue;} + + *pos=0; + c->expires=atol(pos1); + pos++; + pos1=pos; + pos=strchr(pos,' '); + if(!pos){free_cookie(c);mem_free(c);continue;} + + *pos=0; + c->path=stracpy(pos1); + pos++; + pos1=pos; + pos=strchr(pos,' '); + if(!pos){free_cookie(c);mem_free(c);continue;} + + *pos=0; + c->domain=stracpy(pos1); + pos++; + pos1=pos; + pos=strchr(pos,' '); + if(!pos){free_cookie(c);mem_free(c);continue;} + + *pos=0; + c->secure=atoi(pos1); + pos++; + c->id=atoi(pos); + accept_cookie(c); +// mem_free(c); + } } void cleanup_cookies() { + FILE *out; struct cookie *c; + unsigned char *file_name; + + file_name = stracpy(links_home); + if (file_name) + { + add_to_strn(&file_name, "cookies"); + out = fopen(file_name, "w"); + mem_free(file_name); + } free_list(c_domains); - /* !!! FIXME: save cookies */ - foreach (c, cookies) free_cookie(c); + foreach (c, cookies){ + if(out) + fprintf(out,"%s %s %s %ld %s %s %d %d\n",c->name,c->value,c->server,c->expires,c->path,c->domain,c->secure,c->id); + free_cookie(c); + } free_list(cookies); + if(out)fclose(out); } diff -ruN links-current/parsedate.c links-current.p/parsedate.c --- links-current/parsedate.c Thu Jan 1 03:00:00 1970 +++ links-current.p/parsedate.c Tue Jun 13 16:29:00 2000 @@ -0,0 +1,1842 @@ + +/* A Bison parser, made from parsedate.y + by GNU Bison version 1.28 */ + +#define YYBISON 1 /* Identify Bison output. */ + +#define tDAY 257 +#define tDAYZONE 258 +#define tMERIDIAN 259 +#define tMONTH 260 +#define tMONTH_UNIT 261 +#define tSEC_UNIT 262 +#define tSNUMBER 263 +#define tUNUMBER 264 +#define tZONE 265 + +#line 1 "parsedate.y" + +/* $Revision: 1.18 $ +** +** Originally written by Steven M. Bellovin while +** at the University of North Carolina at Chapel Hill. Later tweaked by +** a couple of people on Usenet. Completely overhauled by Rich $alz +** and Jim Berets in August, 1990. +** Further revised (removed obsolete constructs and cleaned up timezone +** names) in August, 1991, by Rich. Paul Eggert +** helped in September, 1992. +** +** This grammar has six shift/reduce conflicts. +** +** This code is in the public domain and has no copyright. +*/ +/* SUPPRESS 530 *//* Empty body for statement */ +/* SUPPRESS 593 on yyerrlab *//* Label was not used */ +/* SUPPRESS 593 on yynewstate *//* Label was not used */ +/* SUPPRESS 595 on yypvt *//* Automatic variable may be used before set */ + + + +# include + +#include +#include +#include + +# include + +#include + + +#define yylhs date_yylhs +#define yylen date_yylen +#define yydefred date_yydefred +#define yydgoto date_yydgoto +#define yysindex date_yysindex +#define yyrindex date_yyrindex +#define yygindex date_yygindex +#define yytable date_yytable +#define yycheck date_yycheck +#define yyparse date_parse +#define yyparse date_parse +#define yylex date_lex +#define yyerror date_error + + + /* See the LeapYears table in Convert. */ +#define EPOCH 1970 +#define END_OF_TIME 2038 + /* Constants for general time calculations. */ +#define DST_OFFSET 1 +#define SECSPERDAY (24L * 60L * 60L) + /* Readability for TABLE stuff. */ +#define HOUR(x) (x * 60) + +#define LPAREN '(' +#define RPAREN ')' +#define IS7BIT(x) ((unsigned int)(x) < 0200) + +/* +** Get the number of elements in a fixed-size array, or a pointer just +** past the end of it. +*/ +#define SIZEOF(array) ((int)(sizeof array / sizeof array[0])) +#define ENDOF(array) (&array[SIZEOF(array)]) +#define CTYPE(isXXXXX, c) ((isascii((c)) && isXXXXX((c)))) + +typedef struct _TIMEINFO { + time_t time; + long usec; + long tzone; +} TIMEINFO; + +int GetTimeInfo(TIMEINFO *Now); + +typedef char const *STRING; +typedef char * const CSTRING; + +/* +** An entry in the lexical lookup table. +*/ +typedef struct _TABLE { + STRING name; + int type; + time_t value; +} TABLE; + +/* +** Daylight-savings mode: on, off, or not yet known. +*/ +typedef enum _DSTMODE { + DSTon, DSToff, DSTmaybe +} DSTMODE; + +/* +** Meridian: am, pm, or 24-hour style. +*/ +typedef enum _MERIDIAN { + MERam, MERpm, MER24 +} MERIDIAN; + + +/* +** Global variables. We could get rid of most of them by using a yacc +** union, but this is more efficient. (This routine predates the +** yacc %union construct.) +*/ +static char *yyInput; +static DSTMODE yyDSTmode; +static int yyHaveDate; +static int yyHaveRel; +static int yyHaveTime; +static time_t yyTimezone; +static time_t yyDay; +static time_t yyHour; +static time_t yyMinutes; +static time_t yyMonth; +static time_t yySeconds; +static time_t yyYear; +static MERIDIAN yyMeridian; +static time_t yyRelMonth; +static time_t yyRelSeconds; + + + +static void date_error(char *s); + + +#line 135 "parsedate.y" +typedef union { + time_t Number; + enum _MERIDIAN Meridian; +} YYSTYPE; +#line 140 "parsedate.y" + +static int date_lex(YYSTYPE *yylval); +#include + +#ifndef __cplusplus +#ifndef __STDC__ +#define const +#endif +#endif + + + +#define YYFINAL 44 +#define YYFLAG -32768 +#define YYNTBASE 15 + +#define YYTRANSLATE(x) ((unsigned)(x) <= 265 ? yytranslate[x] : 23) + +static const char yytranslate[] = { 0, + 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, 14, 2, 2, 13, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 12, 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 +}; + +#if YYDEBUG != 0 +static const short yyprhs[] = { 0, + 0, 1, 4, 6, 9, 11, 13, 16, 21, 26, + 33, 40, 42, 44, 47, 49, 51, 55, 61, 64, + 69, 72, 76, 82, 85, 88, 91, 94, 95 +}; + +static const short yyrhs[] = { -1, + 15, 16, 0, 17, 0, 17, 18, 0, 20, 0, + 21, 0, 10, 22, 0, 10, 12, 10, 22, 0, + 10, 12, 10, 19, 0, 10, 12, 10, 12, 10, + 22, 0, 10, 12, 10, 12, 10, 19, 0, 11, + 0, 4, 0, 11, 19, 0, 19, 0, 9, 0, + 10, 13, 10, 0, 10, 13, 10, 13, 10, 0, + 6, 10, 0, 6, 10, 14, 10, 0, 10, 6, + 0, 10, 6, 10, 0, 3, 14, 10, 6, 9, + 0, 9, 8, 0, 10, 8, 0, 9, 7, 0, + 10, 7, 0, 0, 5, 0 +}; + +#endif + +#if YYDEBUG != 0 +static const short yyrline[] = { 0, + 153, 154, 157, 166, 170, 173, 178, 190, 196, 203, + 209, 219, 223, 227, 235, 241, 262, 266, 286, 290, + 301, 305, 316, 329, 332, 335, 338, 343, 346 +}; +#endif + + +#if YYDEBUG != 0 || defined (YYERROR_VERBOSE) + +static const char * const yytname[] = { "$","error","$undefined.","tDAY","tDAYZONE", +"tMERIDIAN","tMONTH","tMONTH_UNIT","tSEC_UNIT","tSNUMBER","tUNUMBER","tZONE", +"':'","'/'","','","spec","item","time","zone","numzone","date","rel","o_merid", NULL +}; +#endif + +static const short yyr1[] = { 0, + 15, 15, 16, 16, 16, 16, 17, 17, 17, 17, + 17, 18, 18, 18, 18, 19, 20, 20, 20, 20, + 20, 20, 20, 21, 21, 21, 21, 22, 22 +}; + +static const short yyr2[] = { 0, + 0, 2, 1, 2, 1, 1, 2, 4, 4, 6, + 6, 1, 1, 2, 1, 1, 3, 5, 2, 4, + 2, 3, 5, 2, 2, 2, 2, 0, 1 +}; + +static const short yydefact[] = { 1, + 0, 0, 0, 0, 28, 2, 3, 5, 6, 0, + 19, 26, 24, 29, 21, 27, 25, 0, 0, 7, + 13, 16, 12, 4, 15, 0, 0, 22, 28, 17, + 14, 0, 20, 0, 9, 8, 0, 23, 28, 18, + 11, 10, 0, 0 +}; + +static const short yydefgoto[] = { 1, + 6, 7, 24, 25, 8, 9, 20 +}; + +static const short yypact[] = {-32768, + 1, -11, 11, 20, 12,-32768, 4,-32768,-32768, 13, + 16,-32768,-32768,-32768, 21,-32768,-32768, 22, 23,-32768, +-32768,-32768, 5,-32768,-32768, 28, 25,-32768, 17, 24, +-32768, 27,-32768, 29,-32768,-32768, 30,-32768, 0,-32768, +-32768,-32768, 38,-32768 +}; + +static const short yypgoto[] = {-32768, +-32768,-32768,-32768, -23,-32768,-32768, -27 +}; + + +#define YYLAST 40 + + +static const short yytable[] = { 31, + 43, 36, 10, 2, 14, 35, 3, 21, 22, 4, + 5, 42, 22, 22, 23, 41, 14, 15, 16, 17, + 11, 14, 26, 18, 19, 22, 12, 13, 34, 27, + 28, 29, 30, 32, 33, 38, 37, 44, 39, 40 +}; + +static const short yycheck[] = { 23, + 0, 29, 14, 3, 5, 29, 6, 4, 9, 9, + 10, 39, 9, 9, 11, 39, 5, 6, 7, 8, + 10, 5, 10, 12, 13, 9, 7, 8, 12, 14, + 10, 10, 10, 6, 10, 9, 13, 0, 10, 10 +}; +#define YYPURE 1 + +/* -*-C-*- Note some compilers choke on comments on `#line' lines. */ +#line 3 "/usr/lib/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 +#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 +#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 */ + #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/lib/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 3: +#line 157 "parsedate.y" +{ + yyHaveTime++; +#if defined(lint) + /* I am compulsive about lint natterings... */ + if (yyHaveTime == -1) { + YYERROR; + } +#endif /* defined(lint) */ + ; + break;} +case 4: +#line 166 "parsedate.y" +{ + yyHaveTime++; + yyTimezone = yyvsp[0].Number; + ; + break;} +case 5: +#line 170 "parsedate.y" +{ + yyHaveDate++; + ; + break;} +case 6: +#line 173 "parsedate.y" +{ + yyHaveRel = 1; + ; + break;} +case 7: +#line 178 "parsedate.y" +{ + if (yyvsp[-1].Number < 100) { + yyHour = yyvsp[-1].Number; + yyMinutes = 0; + } + else { + yyHour = yyvsp[-1].Number / 100; + yyMinutes = yyvsp[-1].Number % 100; + } + yySeconds = 0; + yyMeridian = yyvsp[0].Meridian; + ; + break;} +case 8: +#line 190 "parsedate.y" +{ + yyHour = yyvsp[-3].Number; + yyMinutes = yyvsp[-1].Number; + yySeconds = 0; + yyMeridian = yyvsp[0].Meridian; + ; + break;} +case 9: +#line 196 "parsedate.y" +{ + yyHour = yyvsp[-3].Number; + yyMinutes = yyvsp[-1].Number; + yyTimezone = yyvsp[0].Number; + yyMeridian = MER24; + yyDSTmode = DSToff; + ; + break;} +case 10: +#line 203 "parsedate.y" +{ + yyHour = yyvsp[-5].Number; + yyMinutes = yyvsp[-3].Number; + yySeconds = yyvsp[-1].Number; + yyMeridian = yyvsp[0].Meridian; + ; + break;} +case 11: +#line 209 "parsedate.y" +{ + yyHour = yyvsp[-5].Number; + yyMinutes = yyvsp[-3].Number; + yySeconds = yyvsp[-1].Number; + yyTimezone = yyvsp[0].Number; + yyMeridian = MER24; + yyDSTmode = DSToff; + ; + break;} +case 12: +#line 219 "parsedate.y" +{ + yyval.Number = yyvsp[0].Number; + yyDSTmode = DSToff; + ; + break;} +case 13: +#line 223 "parsedate.y" +{ + yyval.Number = yyvsp[0].Number; + yyDSTmode = DSTon; + ; + break;} +case 14: +#line 227 "parsedate.y" +{ + /* Only allow "GMT+300" and "GMT-0800" */ + if (yyvsp[-1].Number != 0) { + YYABORT; + } + yyval.Number = yyvsp[0].Number; + yyDSTmode = DSToff; + ; + break;} +case 15: +#line 235 "parsedate.y" +{ + yyval.Number = yyvsp[0].Number; + yyDSTmode = DSToff; + ; + break;} +case 16: +#line 241 "parsedate.y" +{ + int i; + + /* Unix and GMT and numeric timezones -- a little confusing. */ + if (yyvsp[0].Number < 0) { + /* Don't work with negative modulus. */ + yyvsp[0].Number = -yyvsp[0].Number; + if (yyvsp[0].Number > 9999 || (i = yyvsp[0].Number % 100) >= 60) { + YYABORT; + } + yyval.Number = (yyvsp[0].Number / 100) * 60 + i; + } + else { + if (yyvsp[0].Number > 9999 || (i = yyvsp[0].Number % 100) >= 60) { + YYABORT; + } + yyval.Number = -((yyvsp[0].Number / 100) * 60 + i); + } + ; + break;} +case 17: +#line 262 "parsedate.y" +{ + yyMonth = yyvsp[-2].Number; + yyDay = yyvsp[0].Number; + ; + break;} +case 18: +#line 266 "parsedate.y" +{ + if (yyvsp[-4].Number > 100) { + /* assume YYYY/MM/DD format, so need not to add 1900 */ + yyYear = yyvsp[-4].Number; + yyMonth = yyvsp[-2].Number; + yyDay = yyvsp[0].Number; + } + else { + /* assume MM/DD/YY* format */ + yyMonth = yyvsp[-4].Number; + yyDay = yyvsp[-2].Number; + if (yyvsp[0].Number > 100) { + /* assume year is YYYY format, so need not to add 1900 */ + yyYear = yyvsp[0].Number; + } else { + /* assume year is YY format, so need to add 1900 */ + yyYear = yyvsp[0].Number + 1900; + } + } + ; + break;} +case 19: +#line 286 "parsedate.y" +{ + yyMonth = yyvsp[-1].Number; + yyDay = yyvsp[0].Number; + ; + break;} +case 20: +#line 290 "parsedate.y" +{ + yyMonth = yyvsp[-3].Number; + yyDay = yyvsp[-2].Number; + if (yyvsp[0].Number > 100) { + /* assume year is YYYY format, so need not to add 1900 */ + yyYear = yyvsp[0].Number; + } else { + /* assume year is YY format, so need to add 1900 */ + yyYear = yyvsp[0].Number + 1900; + } + ; + break;} +case 21: +#line 301 "parsedate.y" +{ + yyDay = yyvsp[-1].Number; + yyMonth = yyvsp[0].Number; + ; + break;} +case 22: +#line 305 "parsedate.y" +{ + yyDay = yyvsp[-2].Number; + yyMonth = yyvsp[-1].Number; + if (yyvsp[0].Number > 100) { + /* assume year is YYYY format, so need not to add 1900 */ + yyYear = yyvsp[0].Number; + } else { + /* assume year is YY format, so need to add 1900 */ + yyYear = yyvsp[0].Number + 1900; + } + ; + break;} +case 23: +#line 316 "parsedate.y" +{ + yyDay = yyvsp[-2].Number; + yyMonth = yyvsp[-1].Number; + if (-yyvsp[0].Number > 100) { + /* assume year is YYYY format, so need not to add 1900 */ + yyYear = -yyvsp[0].Number; + } else { + /* assume year is YY format, so need to add 1900 */ + yyYear = -yyvsp[0].Number + 1900; + } + ; + break;} +case 24: +#line 329 "parsedate.y" +{ + yyRelSeconds += yyvsp[-1].Number * yyvsp[0].Number; + ; + break;} +case 25: +#line 332 "parsedate.y" +{ + yyRelSeconds += yyvsp[-1].Number * yyvsp[0].Number; + ; + break;} +case 26: +#line 335 "parsedate.y" +{ + yyRelMonth += yyvsp[-1].Number * yyvsp[0].Number; + ; + break;} +case 27: +#line 338 "parsedate.y" +{ + yyRelMonth += yyvsp[-1].Number * yyvsp[0].Number; + ; + break;} +case 28: +#line 343 "parsedate.y" +{ + yyval.Meridian = MER24; + ; + break;} +case 29: +#line 346 "parsedate.y" +{ + yyval.Meridian = yyvsp[0].Meridian; + ; + break;} +} + /* the action file gets copied in in place of this dollarsign */ +#line 543 "/usr/lib/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 351 "parsedate.y" + + +/* Month and day table. */ +static TABLE MonthDayTable[] = { + { "january", tMONTH, 1 }, + { "february", tMONTH, 2 }, + { "march", tMONTH, 3 }, + { "april", tMONTH, 4 }, + { "may", tMONTH, 5 }, + { "june", tMONTH, 6 }, + { "july", tMONTH, 7 }, + { "august", tMONTH, 8 }, + { "september", tMONTH, 9 }, + { "october", tMONTH, 10 }, + { "november", tMONTH, 11 }, + { "december", tMONTH, 12 }, + /* The value of the day isn't used... */ + { "sunday", tDAY, 0 }, + { "monday", tDAY, 0 }, + { "tuesday", tDAY, 0 }, + { "wednesday", tDAY, 0 }, + { "thursday", tDAY, 0 }, + { "friday", tDAY, 0 }, + { "saturday", tDAY, 0 } +}; + +/* Time units table. */ +static TABLE UnitsTable[] = { + { "year", tMONTH_UNIT, 12 }, + { "month", tMONTH_UNIT, 1 }, + { "week", tSEC_UNIT, 7 * 24 * 60 * 60 }, + { "day", tSEC_UNIT, 1 * 24 * 60 * 60 }, + { "hour", tSEC_UNIT, 60 * 60 }, + { "minute", tSEC_UNIT, 60 }, + { "min", tSEC_UNIT, 60 }, + { "second", tSEC_UNIT, 1 }, + { "sec", tSEC_UNIT, 1 }, +}; + +/* Timezone table. */ +static TABLE TimezoneTable[] = { + { "gmt", tZONE, HOUR( 0) }, /* Greenwich Mean */ + { "ut", tZONE, HOUR( 0) }, /* Universal */ + { "utc", tZONE, HOUR( 0) }, /* Universal Coordinated */ + { "cut", tZONE, HOUR( 0) }, /* Coordinated Universal */ + { "z", tZONE, HOUR( 0) }, /* Greenwich Mean */ + { "wet", tZONE, HOUR( 0) }, /* Western European */ + { "bst", tDAYZONE, HOUR( 0) }, /* British Summer */ + { "nst", tZONE, HOUR(3)+30 }, /* Newfoundland Standard */ + { "ndt", tDAYZONE, HOUR(3)+30 }, /* Newfoundland Daylight */ + { "ast", tZONE, HOUR( 4) }, /* Atlantic Standard */ + { "adt", tDAYZONE, HOUR( 4) }, /* Atlantic Daylight */ + { "est", tZONE, HOUR( 5) }, /* Eastern Standard */ + { "edt", tDAYZONE, HOUR( 5) }, /* Eastern Daylight */ + { "cst", tZONE, HOUR( 6) }, /* Central Standard */ + { "cdt", tDAYZONE, HOUR( 6) }, /* Central Daylight */ + { "mst", tZONE, HOUR( 7) }, /* Mountain Standard */ + { "mdt", tDAYZONE, HOUR( 7) }, /* Mountain Daylight */ + { "pst", tZONE, HOUR( 8) }, /* Pacific Standard */ + { "pdt", tDAYZONE, HOUR( 8) }, /* Pacific Daylight */ + { "yst", tZONE, HOUR( 9) }, /* Yukon Standard */ + { "ydt", tDAYZONE, HOUR( 9) }, /* Yukon Daylight */ + { "akst", tZONE, HOUR( 9) }, /* Alaska Standard */ + { "akdt", tDAYZONE, HOUR( 9) }, /* Alaska Daylight */ + { "hst", tZONE, HOUR(10) }, /* Hawaii Standard */ + { "hast", tZONE, HOUR(10) }, /* Hawaii-Aleutian Standard */ + { "hadt", tDAYZONE, HOUR(10) }, /* Hawaii-Aleutian Daylight */ + { "ces", tDAYZONE, -HOUR(1) }, /* Central European Summer */ + { "cest", tDAYZONE, -HOUR(1) }, /* Central European Summer */ + { "mez", tZONE, -HOUR(1) }, /* Middle European */ + { "mezt", tDAYZONE, -HOUR(1) }, /* Middle European Summer */ + { "cet", tZONE, -HOUR(1) }, /* Central European */ + { "met", tZONE, -HOUR(1) }, /* Middle European */ + { "eet", tZONE, -HOUR(2) }, /* Eastern Europe */ + { "msk", tZONE, -HOUR(3) }, /* Moscow Winter */ + { "msd", tDAYZONE, -HOUR(3) }, /* Moscow Summer */ + { "wast", tZONE, -HOUR(8) }, /* West Australian Standard */ + { "wadt", tDAYZONE, -HOUR(8) }, /* West Australian Daylight */ + { "hkt", tZONE, -HOUR(8) }, /* Hong Kong */ + { "cct", tZONE, -HOUR(8) }, /* China Coast */ + { "jst", tZONE, -HOUR(9) }, /* Japan Standard */ + { "kst", tZONE, -HOUR(9) }, /* Korean Standard */ + { "kdt", tZONE, -HOUR(9) }, /* Korean Daylight */ + { "cast", tZONE, -(HOUR(9)+30) }, /* Central Australian Standard */ + { "cadt", tDAYZONE, -(HOUR(9)+30) }, /* Central Australian Daylight */ + { "east", tZONE, -HOUR(10) }, /* Eastern Australian Standard */ + { "eadt", tDAYZONE, -HOUR(10) }, /* Eastern Australian Daylight */ + { "nzst", tZONE, -HOUR(12) }, /* New Zealand Standard */ + { "nzdt", tDAYZONE, -HOUR(12) }, /* New Zealand Daylight */ + + /* For completeness we include the following entries. */ +#if 0 + + /* Duplicate names. Either they conflict with a zone listed above + * (which is either more likely to be seen or just been in circulation + * longer), or they conflict with another zone in this section and + * we could not reasonably choose one over the other. */ + { "fst", tZONE, HOUR( 2) }, /* Fernando De Noronha Standard */ + { "fdt", tDAYZONE, HOUR( 2) }, /* Fernando De Noronha Daylight */ + { "bst", tZONE, HOUR( 3) }, /* Brazil Standard */ + { "est", tZONE, HOUR( 3) }, /* Eastern Standard (Brazil) */ + { "edt", tDAYZONE, HOUR( 3) }, /* Eastern Daylight (Brazil) */ + { "wst", tZONE, HOUR( 4) }, /* Western Standard (Brazil) */ + { "wdt", tDAYZONE, HOUR( 4) }, /* Western Daylight (Brazil) */ + { "cst", tZONE, HOUR( 5) }, /* Chile Standard */ + { "cdt", tDAYZONE, HOUR( 5) }, /* Chile Daylight */ + { "ast", tZONE, HOUR( 5) }, /* Acre Standard */ + { "adt", tDAYZONE, HOUR( 5) }, /* Acre Daylight */ + { "cst", tZONE, HOUR( 5) }, /* Cuba Standard */ + { "cdt", tDAYZONE, HOUR( 5) }, /* Cuba Daylight */ + { "est", tZONE, HOUR( 6) }, /* Easter Island Standard */ + { "edt", tDAYZONE, HOUR( 6) }, /* Easter Island Daylight */ + { "sst", tZONE, HOUR(11) }, /* Samoa Standard */ + { "ist", tZONE, -HOUR(2) }, /* Israel Standard */ + { "idt", tDAYZONE, -HOUR(2) }, /* Israel Daylight */ + { "idt", tDAYZONE, -(HOUR(3)+30) }, /* Iran Daylight */ + { "ist", tZONE, -(HOUR(3)+30) }, /* Iran Standard */ + { "cst", tZONE, -HOUR(8) }, /* China Standard */ + { "cdt", tDAYZONE, -HOUR(8) }, /* China Daylight */ + { "sst", tZONE, -HOUR(8) }, /* Singapore Standard */ + + /* Dubious (e.g., not in Olson's TIMEZONE package) or obsolete. */ + { "gst", tZONE, HOUR( 3) }, /* Greenland Standard */ + { "wat", tZONE, -HOUR(1) }, /* West Africa */ + { "at", tZONE, HOUR( 2) }, /* Azores */ + { "gst", tZONE, -HOUR(10) }, /* Guam Standard */ + { "nft", tZONE, HOUR(3)+30 }, /* Newfoundland */ + { "idlw", tZONE, HOUR(12) }, /* International Date Line West */ + { "mewt", tZONE, -HOUR(1) }, /* Middle European Winter */ + { "mest", tDAYZONE, -HOUR(1) }, /* Middle European Summer */ + { "swt", tZONE, -HOUR(1) }, /* Swedish Winter */ + { "sst", tDAYZONE, -HOUR(1) }, /* Swedish Summer */ + { "fwt", tZONE, -HOUR(1) }, /* French Winter */ + { "fst", tDAYZONE, -HOUR(1) }, /* French Summer */ + { "bt", tZONE, -HOUR(3) }, /* Baghdad */ + { "it", tZONE, -(HOUR(3)+30) }, /* Iran */ + { "zp4", tZONE, -HOUR(4) }, /* USSR Zone 3 */ + { "zp5", tZONE, -HOUR(5) }, /* USSR Zone 4 */ + { "ist", tZONE, -(HOUR(5)+30) }, /* Indian Standard */ + { "zp6", tZONE, -HOUR(6) }, /* USSR Zone 5 */ + { "nst", tZONE, -HOUR(7) }, /* North Sumatra */ + { "sst", tZONE, -HOUR(7) }, /* South Sumatra */ + { "jt", tZONE, -(HOUR(7)+30) }, /* Java (3pm in Cronusland!) */ + { "nzt", tZONE, -HOUR(12) }, /* New Zealand */ + { "idle", tZONE, -HOUR(12) }, /* International Date Line East */ + { "cat", tZONE, HOUR(10) }, /* -- expired 1967 */ + { "nt", tZONE, HOUR(11) }, /* -- expired 1967 */ + { "ahst", tZONE, HOUR(10) }, /* -- expired 1983 */ + { "hdt", tDAYZONE, HOUR(10) }, /* -- expired 1986 */ +#endif /* 0 */ +}; + + + +/* ARGSUSED */ +static void +date_error(char *s) +{ + /* NOTREACHED */ +} + +int GetTimeInfo(TIMEINFO *Now) +{ + static time_t NextHour; + static long LastTzone; + struct tm *tm, tmbuf; + int secondsUntilNextHour; + struct timeval tv; + struct tm local; + struct tm gmt; + + /* Get the basic time. */ + if (gettimeofday(&tv, (struct timezone *)NULL) == -1) + return -1; + Now->time = tv.tv_sec; + Now->usec = tv.tv_usec; + + /* Now get the timezone if the last time < HH:00:00 <= now for some HH. */ + if (NextHour <= Now->time) { + if ((tm = localtime(&Now->time)) == NULL) + return -1; + secondsUntilNextHour = 60 * (60 - tm->tm_min) - tm->tm_sec; + /* To get the timezone, compare localtime with GMT. */ + local = *tm; + if ((tm = gmtime(&Now->time)) == NULL) + return -1; + gmt = *tm; + + /* Assume we are never more than 24 hours away. */ + LastTzone = gmt.tm_yday - local.tm_yday; + if (LastTzone > 1) + LastTzone = -24; + else if (LastTzone < -1) + LastTzone = 24; + else + LastTzone *= 24; + + /* Scale in the hours and minutes; ignore seconds. */ + LastTzone += gmt.tm_hour - local.tm_hour; + LastTzone *= 60; + LastTzone += gmt.tm_min - local.tm_min; + NextHour = Now->time + secondsUntilNextHour; + } + Now->tzone = LastTzone; + return 0; +} + + +static time_t +ToSeconds(time_t Hours, time_t Minutes, time_t Seconds, MERIDIAN Meridian) +{ + if (Minutes < 0 || Minutes > 59 || Seconds < 0 || Seconds > 61) + return -1; + if (Meridian == MER24) { + if (Hours < 0 || Hours > 23) + return -1; + } + else { + if (Hours < 1 || Hours > 12) + return -1; + if (Hours == 12) + Hours = 0; + if (Meridian == MERpm) + Hours += 12; + } + return (Hours * 60L + Minutes) * 60L + Seconds; +} + + +static time_t +Convert(time_t Month, time_t Day, time_t Year, time_t Hours, time_t Minutes, time_t Seconds, MERIDIAN Meridian, DSTMODE dst) +{ + static int DaysNormal[13] = { + 0, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 + }; + static int DaysLeap[13] = { + 0, 31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 + }; + static int LeapYears[] = { + 1972, 1976, 1980, 1984, 1988, 1992, 1996, + 2000, 2004, 2008, 2012, 2016, 2020, 2024, 2028, 2032, 2036 + }; + int *yp; + int *mp; + time_t Julian; + int i; + time_t tod; + struct tm tmbuf; + + /* Year should not be passed as a relative value, but absolute one. + so this should not happen, but just ensure it */ + if (Year < 0) + Year = -Year; + if (Year < 100) + Year += 1900; + if (Year < EPOCH) + Year += 100; + for (mp = DaysNormal, yp = LeapYears; yp < ENDOF(LeapYears); yp++) + if (Year == *yp) { + mp = DaysLeap; + break; + } + if (Year < EPOCH || Year > END_OF_TIME + || Month < 1 || Month > 12 + /* NOSTRICT *//* conversion from long may lose accuracy */ + || Day < 1 || Day > mp[(int)Month]) + return -1; + + Julian = Day - 1 + (Year - EPOCH) * 365; + for (yp = LeapYears; yp < ENDOF(LeapYears); yp++, Julian++) + if (Year <= *yp) + break; + for (i = 1; i < Month; i++) + Julian += *++mp; + Julian *= SECSPERDAY; + Julian += yyTimezone * 60L; + if ((tod = ToSeconds(Hours, Minutes, Seconds, Meridian)) < 0) + return -1; + Julian += tod; + tod = Julian; + if (dst == DSTon || (dst == DSTmaybe && localtime(&tod)->tm_isdst)) + Julian -= DST_OFFSET * 60 * 60; + return Julian; +} + + +static time_t +DSTcorrect(time_t Start, time_t Future) +{ + time_t StartDay; + time_t FutureDay; + struct tm tmbuf; + + StartDay = (localtime(&Start)->tm_hour + 1) % 24; + FutureDay = (localtime(&Future)->tm_hour + 1) % 24; + return (Future - Start) + (StartDay - FutureDay) * DST_OFFSET * 60 * 60; +} + + +static time_t +RelativeMonth(time_t Start, time_t RelMonth) +{ + struct tm *tm, tmbuf; + time_t Month; + time_t Year; + + tm = localtime(&Start); + Month = 12 * tm->tm_year + tm->tm_mon + RelMonth; + Year = Month / 12; + Year += 1900; + Month = Month % 12 + 1; + return DSTcorrect(Start, + Convert(Month, (time_t)tm->tm_mday, Year, + (time_t)tm->tm_hour, (time_t)tm->tm_min, (time_t)tm->tm_sec, + MER24, DSTmaybe)); +} + + +static int LookupWord(char *buff, int length, YYSTYPE *yylval) +{ + char *p; + STRING q; + TABLE *tp; + int c; + + p = buff; + c = p[0]; + + /* See if we have an abbreviation for a month. */ + if (length == 3 || (length == 4 && p[3] == '.')) + for (tp = MonthDayTable; tp < ENDOF(MonthDayTable); tp++) { + q = tp->name; + if (c == q[0] && p[1] == q[1] && p[2] == q[2]) { + yylval->Number = tp->value; + return tp->type; + } + } + else + for (tp = MonthDayTable; tp < ENDOF(MonthDayTable); tp++) + if (c == tp->name[0] && strcmp(p, tp->name) == 0) { + yylval->Number = tp->value; + return tp->type; + } + + /* Try for a timezone. */ + for (tp = TimezoneTable; tp < ENDOF(TimezoneTable); tp++) + if (c == tp->name[0] && p[1] == tp->name[1] + && strcmp(p, tp->name) == 0) { + yylval->Number = tp->value; + return tp->type; + } + + /* Try the units table. */ + for (tp = UnitsTable; tp < ENDOF(UnitsTable); tp++) + if (c == tp->name[0] && strcmp(p, tp->name) == 0) { + yylval->Number = tp->value; + return tp->type; + } + + /* Strip off any plural and try the units table again. */ + if (--length > 0 && p[length] == 's') { + p[length] = '\0'; + for (tp = UnitsTable; tp < ENDOF(UnitsTable); tp++) + if (c == tp->name[0] && strcmp(p, tp->name) == 0) { + p[length] = 's'; + yylval->Number = tp->value; + return tp->type; + } + p[length] = 's'; + } + length++; + + /* Drop out any periods. */ + for (p = buff, q = (STRING)buff; *q; q++) + if (*q != '.') + *p++ = *q; + *p = '\0'; + + /* Try the meridians. */ + if (buff[1] == 'm' && buff[2] == '\0') { + if (buff[0] == 'a') { + yylval->Meridian = MERam; + return tMERIDIAN; + } + if (buff[0] == 'p') { + yylval->Meridian = MERpm; + return tMERIDIAN; + } + } + + /* If we saw any periods, try the timezones again. */ + if (p - buff != length) { + c = buff[0]; + for (p = buff, tp = TimezoneTable; tp < ENDOF(TimezoneTable); tp++) + if (c == tp->name[0] && p[1] == tp->name[1] + && strcmp(p, tp->name) == 0) { + yylval->Number = tp->value; + return tp->type; + } + } + + /* Unknown word -- assume GMT timezone. */ + yylval->Number = 0; + return tZONE; +} + + +static int date_lex(YYSTYPE *yylval) +{ + char c; + char *p; + char buff[20]; + int sign; + int i; + int nesting; + + for ( ; ; ) { + /* Get first character after the whitespace. */ + for ( ; ; ) { + while (CTYPE(isspace, (int)*yyInput)) + yyInput++; + c = *yyInput; + + /* Ignore RFC 822 comments, typically time zone names. */ + if (c != LPAREN) + break; + for (nesting = 1; (c = *++yyInput) != RPAREN || --nesting; ) + if (c == LPAREN) + nesting++; + else if (!IS7BIT(c) || c == '\0' || c == '\r' + || (c == '\\' && ((c = *++yyInput) == '\0' || !IS7BIT(c)))) + /* Lexical error: bad comment. */ + return '?'; + yyInput++; + } + + /* A number? */ + if (CTYPE(isdigit, (int)c) || c == '-' || c == '+') { + if (c == '-' || c == '+') { + sign = c == '-' ? -1 : 1; + yyInput++; + if (!CTYPE(isdigit, (int)*yyInput)) + /* Skip the plus or minus sign. */ + continue; + } + else + sign = 0; + for (i = 0; (c = *yyInput++) != '\0' && CTYPE(isdigit, (int)c); ) + i = 10 * i + c - '0'; + yyInput--; + yylval->Number = sign < 0 ? -i : i; + return sign ? tSNUMBER : tUNUMBER; + } + + /* A word? */ + if (CTYPE(isalpha, (int)c)) { + for (p = buff; (c = *yyInput++) == '.' || CTYPE(isalpha, (int)c); ) + if (p < &buff[sizeof buff - 1]) + *p++ = CTYPE(isupper, (int)c) ? tolower(c) : c; + *p = '\0'; + yyInput--; + return LookupWord(buff, p - buff, yylval); + } + + return *yyInput++; + } +} + + +time_t parsedate(char *p, TIMEINFO *now) +{ + struct tm *tm, tmbuf; + TIMEINFO ti; + time_t Start; + + yyInput = p; + if (now == NULL) { + now = &ti; + (void)GetTimeInfo(&ti); + } + + tm = localtime(&now->time); + yyYear = tm->tm_year + 1900; + yyMonth = tm->tm_mon + 1; + yyDay = tm->tm_mday; + yyTimezone = tm->tm_gmtoff/60; + yyDSTmode = DSTmaybe; + yyHour = 0; + yyMinutes = 0; + yySeconds = 0; + yyMeridian = MER24; + yyRelSeconds = 0; + yyRelMonth = 0; + yyHaveDate = 0; + yyHaveRel = 0; + yyHaveTime = 0; + + if (date_parse(YYPARSE_PARAM_ARG) || yyHaveTime > 1 || yyHaveDate > 1) + return -1; + + if (yyHaveDate || yyHaveTime) { + Start = Convert(yyMonth, yyDay, yyYear, yyHour, yyMinutes, yySeconds, + yyMeridian, yyDSTmode); + if (Start < 0) + return -1; + } + else { + Start = now->time; + if (!yyHaveRel) + Start -= (tm->tm_hour * 60L + tm->tm_min) * 60L + tm->tm_sec; + } + + Start += yyRelSeconds; + if (yyRelMonth) + Start += RelativeMonth(Start, yyRelMonth); + + /* Have to do *something* with a legitimate -1 so it's distinguishable + * from the error return value. (Alternately could set errno on error.) */ + return Start == -1 ? 0 : Start; +} diff -ruN links-current/parsedate.y links-current.p/parsedate.y --- links-current/parsedate.y Thu Jan 1 03:00:00 1970 +++ links-current.p/parsedate.y Tue Jun 13 16:28:57 2000 @@ -0,0 +1,870 @@ +%{ +/* $Revision: 1.18 $ +** +** Originally written by Steven M. Bellovin while +** at the University of North Carolina at Chapel Hill. Later tweaked by +** a couple of people on Usenet. Completely overhauled by Rich $alz +** and Jim Berets in August, 1990. +** Further revised (removed obsolete constructs and cleaned up timezone +** names) in August, 1991, by Rich. Paul Eggert +** helped in September, 1992. +** +** This grammar has six shift/reduce conflicts. +** +** This code is in the public domain and has no copyright. +*/ +/* SUPPRESS 530 *//* Empty body for statement */ +/* SUPPRESS 593 on yyerrlab *//* Label was not used */ +/* SUPPRESS 593 on yynewstate *//* Label was not used */ +/* SUPPRESS 595 on yypvt *//* Automatic variable may be used before set */ + + + +# include + +#include +#include +#include + +# include + +#include + + +#define yylhs date_yylhs +#define yylen date_yylen +#define yydefred date_yydefred +#define yydgoto date_yydgoto +#define yysindex date_yysindex +#define yyrindex date_yyrindex +#define yygindex date_yygindex +#define yytable date_yytable +#define yycheck date_yycheck +#define yyparse date_parse +#define yyparse date_parse +#define yylex date_lex +#define yyerror date_error + + + /* See the LeapYears table in Convert. */ +#define EPOCH 1970 +#define END_OF_TIME 2038 + /* Constants for general time calculations. */ +#define DST_OFFSET 1 +#define SECSPERDAY (24L * 60L * 60L) + /* Readability for TABLE stuff. */ +#define HOUR(x) (x * 60) + +#define LPAREN '(' +#define RPAREN ')' +#define IS7BIT(x) ((unsigned int)(x) < 0200) + +/* +** Get the number of elements in a fixed-size array, or a pointer just +** past the end of it. +*/ +#define SIZEOF(array) ((int)(sizeof array / sizeof array[0])) +#define ENDOF(array) (&array[SIZEOF(array)]) +#define CTYPE(isXXXXX, c) ((isascii((c)) && isXXXXX((c)))) + +typedef struct _TIMEINFO { + time_t time; + long usec; + long tzone; +} TIMEINFO; + +int GetTimeInfo(TIMEINFO *Now); + +typedef char const *STRING; +typedef char * const CSTRING; + +/* +** An entry in the lexical lookup table. +*/ +typedef struct _TABLE { + STRING name; + int type; + time_t value; +} TABLE; + +/* +** Daylight-savings mode: on, off, or not yet known. +*/ +typedef enum _DSTMODE { + DSTon, DSToff, DSTmaybe +} DSTMODE; + +/* +** Meridian: am, pm, or 24-hour style. +*/ +typedef enum _MERIDIAN { + MERam, MERpm, MER24 +} MERIDIAN; + + +/* +** Global variables. We could get rid of most of them by using a yacc +** union, but this is more efficient. (This routine predates the +** yacc %union construct.) +*/ +static char *yyInput; +static DSTMODE yyDSTmode; +static int yyHaveDate; +static int yyHaveRel; +static int yyHaveTime; +static time_t yyTimezone; +static time_t yyDay; +static time_t yyHour; +static time_t yyMinutes; +static time_t yyMonth; +static time_t yySeconds; +static time_t yyYear; +static MERIDIAN yyMeridian; +static time_t yyRelMonth; +static time_t yyRelSeconds; + + + +static void date_error(char *s); + +%} + +%pure_parser +%expect 6 + +%union { + time_t Number; + enum _MERIDIAN Meridian; +} + +%{ +static int date_lex(YYSTYPE *yylval); +%} + +%token tDAY tDAYZONE tMERIDIAN tMONTH tMONTH_UNIT tSEC_UNIT tSNUMBER +%token tUNUMBER tZONE + +%type tDAYZONE tMONTH tMONTH_UNIT tSEC_UNIT +%type tSNUMBER tUNUMBER tZONE numzone zone +%type tMERIDIAN o_merid + +%% + +spec : /* NULL */ + | spec item + ; + +item : time { + yyHaveTime++; +#if defined(lint) + /* I am compulsive about lint natterings... */ + if (yyHaveTime == -1) { + YYERROR; + } +#endif /* defined(lint) */ + } + | time zone { + yyHaveTime++; + yyTimezone = $2; + } + | date { + yyHaveDate++; + } + | rel { + yyHaveRel = 1; + } + ; + +time : tUNUMBER o_merid { + if ($1 < 100) { + yyHour = $1; + yyMinutes = 0; + } + else { + yyHour = $1 / 100; + yyMinutes = $1 % 100; + } + yySeconds = 0; + yyMeridian = $2; + } + | tUNUMBER ':' tUNUMBER o_merid { + yyHour = $1; + yyMinutes = $3; + yySeconds = 0; + yyMeridian = $4; + } + | tUNUMBER ':' tUNUMBER numzone { + yyHour = $1; + yyMinutes = $3; + yyTimezone = $4; + yyMeridian = MER24; + yyDSTmode = DSToff; + } + | tUNUMBER ':' tUNUMBER ':' tUNUMBER o_merid { + yyHour = $1; + yyMinutes = $3; + yySeconds = $5; + yyMeridian = $6; + } + | tUNUMBER ':' tUNUMBER ':' tUNUMBER numzone { + yyHour = $1; + yyMinutes = $3; + yySeconds = $5; + yyTimezone = $6; + yyMeridian = MER24; + yyDSTmode = DSToff; + } + ; + +zone : tZONE { + $$ = $1; + yyDSTmode = DSToff; + } + | tDAYZONE { + $$ = $1; + yyDSTmode = DSTon; + } + | tZONE numzone { + /* Only allow "GMT+300" and "GMT-0800" */ + if ($1 != 0) { + YYABORT; + } + $$ = $2; + yyDSTmode = DSToff; + } + | numzone { + $$ = $1; + yyDSTmode = DSToff; + } + ; + +numzone : tSNUMBER { + int i; + + /* Unix and GMT and numeric timezones -- a little confusing. */ + if ($1 < 0) { + /* Don't work with negative modulus. */ + $1 = -$1; + if ($1 > 9999 || (i = $1 % 100) >= 60) { + YYABORT; + } + $$ = ($1 / 100) * 60 + i; + } + else { + if ($1 > 9999 || (i = $1 % 100) >= 60) { + YYABORT; + } + $$ = -(($1 / 100) * 60 + i); + } + } + ; + +date : tUNUMBER '/' tUNUMBER { + yyMonth = $1; + yyDay = $3; + } + | tUNUMBER '/' tUNUMBER '/' tUNUMBER { + if ($1 > 100) { + /* assume YYYY/MM/DD format, so need not to add 1900 */ + yyYear = $1; + yyMonth = $3; + yyDay = $5; + } + else { + /* assume MM/DD/YY* format */ + yyMonth = $1; + yyDay = $3; + if ($5 > 100) { + /* assume year is YYYY format, so need not to add 1900 */ + yyYear = $5; + } else { + /* assume year is YY format, so need to add 1900 */ + yyYear = $5 + 1900; + } + } + } + | tMONTH tUNUMBER { + yyMonth = $1; + yyDay = $2; + } + | tMONTH tUNUMBER ',' tUNUMBER { + yyMonth = $1; + yyDay = $2; + if ($4 > 100) { + /* assume year is YYYY format, so need not to add 1900 */ + yyYear = $4; + } else { + /* assume year is YY format, so need to add 1900 */ + yyYear = $4 + 1900; + } + } + | tUNUMBER tMONTH { + yyDay = $1; + yyMonth = $2; + } + | tUNUMBER tMONTH tUNUMBER { + yyDay = $1; + yyMonth = $2; + if ($3 > 100) { + /* assume year is YYYY format, so need not to add 1900 */ + yyYear = $3; + } else { + /* assume year is YY format, so need to add 1900 */ + yyYear = $3 + 1900; + } + } + | tDAY ',' tUNUMBER tMONTH tSNUMBER { + yyDay = $3; + yyMonth = $4; + if (-$5 > 100) { + /* assume year is YYYY format, so need not to add 1900 */ + yyYear = -$5; + } else { + /* assume year is YY format, so need to add 1900 */ + yyYear = -$5 + 1900; + } + } + ; + +rel : tSNUMBER tSEC_UNIT { + yyRelSeconds += $1 * $2; + } + | tUNUMBER tSEC_UNIT { + yyRelSeconds += $1 * $2; + } + | tSNUMBER tMONTH_UNIT { + yyRelMonth += $1 * $2; + } + | tUNUMBER tMONTH_UNIT { + yyRelMonth += $1 * $2; + } + ; + +o_merid : /* NULL */ { + $$ = MER24; + } + | tMERIDIAN { + $$ = $1; + } + ; + +%% + +/* Month and day table. */ +static TABLE MonthDayTable[] = { + { "january", tMONTH, 1 }, + { "february", tMONTH, 2 }, + { "march", tMONTH, 3 }, + { "april", tMONTH, 4 }, + { "may", tMONTH, 5 }, + { "june", tMONTH, 6 }, + { "july", tMONTH, 7 }, + { "august", tMONTH, 8 }, + { "september", tMONTH, 9 }, + { "october", tMONTH, 10 }, + { "november", tMONTH, 11 }, + { "december", tMONTH, 12 }, + /* The value of the day isn't used... */ + { "sunday", tDAY, 0 }, + { "monday", tDAY, 0 }, + { "tuesday", tDAY, 0 }, + { "wednesday", tDAY, 0 }, + { "thursday", tDAY, 0 }, + { "friday", tDAY, 0 }, + { "saturday", tDAY, 0 } +}; + +/* Time units table. */ +static TABLE UnitsTable[] = { + { "year", tMONTH_UNIT, 12 }, + { "month", tMONTH_UNIT, 1 }, + { "week", tSEC_UNIT, 7 * 24 * 60 * 60 }, + { "day", tSEC_UNIT, 1 * 24 * 60 * 60 }, + { "hour", tSEC_UNIT, 60 * 60 }, + { "minute", tSEC_UNIT, 60 }, + { "min", tSEC_UNIT, 60 }, + { "second", tSEC_UNIT, 1 }, + { "sec", tSEC_UNIT, 1 }, +}; + +/* Timezone table. */ +static TABLE TimezoneTable[] = { + { "gmt", tZONE, HOUR( 0) }, /* Greenwich Mean */ + { "ut", tZONE, HOUR( 0) }, /* Universal */ + { "utc", tZONE, HOUR( 0) }, /* Universal Coordinated */ + { "cut", tZONE, HOUR( 0) }, /* Coordinated Universal */ + { "z", tZONE, HOUR( 0) }, /* Greenwich Mean */ + { "wet", tZONE, HOUR( 0) }, /* Western European */ + { "bst", tDAYZONE, HOUR( 0) }, /* British Summer */ + { "nst", tZONE, HOUR(3)+30 }, /* Newfoundland Standard */ + { "ndt", tDAYZONE, HOUR(3)+30 }, /* Newfoundland Daylight */ + { "ast", tZONE, HOUR( 4) }, /* Atlantic Standard */ + { "adt", tDAYZONE, HOUR( 4) }, /* Atlantic Daylight */ + { "est", tZONE, HOUR( 5) }, /* Eastern Standard */ + { "edt", tDAYZONE, HOUR( 5) }, /* Eastern Daylight */ + { "cst", tZONE, HOUR( 6) }, /* Central Standard */ + { "cdt", tDAYZONE, HOUR( 6) }, /* Central Daylight */ + { "mst", tZONE, HOUR( 7) }, /* Mountain Standard */ + { "mdt", tDAYZONE, HOUR( 7) }, /* Mountain Daylight */ + { "pst", tZONE, HOUR( 8) }, /* Pacific Standard */ + { "pdt", tDAYZONE, HOUR( 8) }, /* Pacific Daylight */ + { "yst", tZONE, HOUR( 9) }, /* Yukon Standard */ + { "ydt", tDAYZONE, HOUR( 9) }, /* Yukon Daylight */ + { "akst", tZONE, HOUR( 9) }, /* Alaska Standard */ + { "akdt", tDAYZONE, HOUR( 9) }, /* Alaska Daylight */ + { "hst", tZONE, HOUR(10) }, /* Hawaii Standard */ + { "hast", tZONE, HOUR(10) }, /* Hawaii-Aleutian Standard */ + { "hadt", tDAYZONE, HOUR(10) }, /* Hawaii-Aleutian Daylight */ + { "ces", tDAYZONE, -HOUR(1) }, /* Central European Summer */ + { "cest", tDAYZONE, -HOUR(1) }, /* Central European Summer */ + { "mez", tZONE, -HOUR(1) }, /* Middle European */ + { "mezt", tDAYZONE, -HOUR(1) }, /* Middle European Summer */ + { "cet", tZONE, -HOUR(1) }, /* Central European */ + { "met", tZONE, -HOUR(1) }, /* Middle European */ + { "eet", tZONE, -HOUR(2) }, /* Eastern Europe */ + { "msk", tZONE, -HOUR(3) }, /* Moscow Winter */ + { "msd", tDAYZONE, -HOUR(3) }, /* Moscow Summer */ + { "wast", tZONE, -HOUR(8) }, /* West Australian Standard */ + { "wadt", tDAYZONE, -HOUR(8) }, /* West Australian Daylight */ + { "hkt", tZONE, -HOUR(8) }, /* Hong Kong */ + { "cct", tZONE, -HOUR(8) }, /* China Coast */ + { "jst", tZONE, -HOUR(9) }, /* Japan Standard */ + { "kst", tZONE, -HOUR(9) }, /* Korean Standard */ + { "kdt", tZONE, -HOUR(9) }, /* Korean Daylight */ + { "cast", tZONE, -(HOUR(9)+30) }, /* Central Australian Standard */ + { "cadt", tDAYZONE, -(HOUR(9)+30) }, /* Central Australian Daylight */ + { "east", tZONE, -HOUR(10) }, /* Eastern Australian Standard */ + { "eadt", tDAYZONE, -HOUR(10) }, /* Eastern Australian Daylight */ + { "nzst", tZONE, -HOUR(12) }, /* New Zealand Standard */ + { "nzdt", tDAYZONE, -HOUR(12) }, /* New Zealand Daylight */ + + /* For completeness we include the following entries. */ +#if 0 + + /* Duplicate names. Either they conflict with a zone listed above + * (which is either more likely to be seen or just been in circulation + * longer), or they conflict with another zone in this section and + * we could not reasonably choose one over the other. */ + { "fst", tZONE, HOUR( 2) }, /* Fernando De Noronha Standard */ + { "fdt", tDAYZONE, HOUR( 2) }, /* Fernando De Noronha Daylight */ + { "bst", tZONE, HOUR( 3) }, /* Brazil Standard */ + { "est", tZONE, HOUR( 3) }, /* Eastern Standard (Brazil) */ + { "edt", tDAYZONE, HOUR( 3) }, /* Eastern Daylight (Brazil) */ + { "wst", tZONE, HOUR( 4) }, /* Western Standard (Brazil) */ + { "wdt", tDAYZONE, HOUR( 4) }, /* Western Daylight (Brazil) */ + { "cst", tZONE, HOUR( 5) }, /* Chile Standard */ + { "cdt", tDAYZONE, HOUR( 5) }, /* Chile Daylight */ + { "ast", tZONE, HOUR( 5) }, /* Acre Standard */ + { "adt", tDAYZONE, HOUR( 5) }, /* Acre Daylight */ + { "cst", tZONE, HOUR( 5) }, /* Cuba Standard */ + { "cdt", tDAYZONE, HOUR( 5) }, /* Cuba Daylight */ + { "est", tZONE, HOUR( 6) }, /* Easter Island Standard */ + { "edt", tDAYZONE, HOUR( 6) }, /* Easter Island Daylight */ + { "sst", tZONE, HOUR(11) }, /* Samoa Standard */ + { "ist", tZONE, -HOUR(2) }, /* Israel Standard */ + { "idt", tDAYZONE, -HOUR(2) }, /* Israel Daylight */ + { "idt", tDAYZONE, -(HOUR(3)+30) }, /* Iran Daylight */ + { "ist", tZONE, -(HOUR(3)+30) }, /* Iran Standard */ + { "cst", tZONE, -HOUR(8) }, /* China Standard */ + { "cdt", tDAYZONE, -HOUR(8) }, /* China Daylight */ + { "sst", tZONE, -HOUR(8) }, /* Singapore Standard */ + + /* Dubious (e.g., not in Olson's TIMEZONE package) or obsolete. */ + { "gst", tZONE, HOUR( 3) }, /* Greenland Standard */ + { "wat", tZONE, -HOUR(1) }, /* West Africa */ + { "at", tZONE, HOUR( 2) }, /* Azores */ + { "gst", tZONE, -HOUR(10) }, /* Guam Standard */ + { "nft", tZONE, HOUR(3)+30 }, /* Newfoundland */ + { "idlw", tZONE, HOUR(12) }, /* International Date Line West */ + { "mewt", tZONE, -HOUR(1) }, /* Middle European Winter */ + { "mest", tDAYZONE, -HOUR(1) }, /* Middle European Summer */ + { "swt", tZONE, -HOUR(1) }, /* Swedish Winter */ + { "sst", tDAYZONE, -HOUR(1) }, /* Swedish Summer */ + { "fwt", tZONE, -HOUR(1) }, /* French Winter */ + { "fst", tDAYZONE, -HOUR(1) }, /* French Summer */ + { "bt", tZONE, -HOUR(3) }, /* Baghdad */ + { "it", tZONE, -(HOUR(3)+30) }, /* Iran */ + { "zp4", tZONE, -HOUR(4) }, /* USSR Zone 3 */ + { "zp5", tZONE, -HOUR(5) }, /* USSR Zone 4 */ + { "ist", tZONE, -(HOUR(5)+30) }, /* Indian Standard */ + { "zp6", tZONE, -HOUR(6) }, /* USSR Zone 5 */ + { "nst", tZONE, -HOUR(7) }, /* North Sumatra */ + { "sst", tZONE, -HOUR(7) }, /* South Sumatra */ + { "jt", tZONE, -(HOUR(7)+30) }, /* Java (3pm in Cronusland!) */ + { "nzt", tZONE, -HOUR(12) }, /* New Zealand */ + { "idle", tZONE, -HOUR(12) }, /* International Date Line East */ + { "cat", tZONE, HOUR(10) }, /* -- expired 1967 */ + { "nt", tZONE, HOUR(11) }, /* -- expired 1967 */ + { "ahst", tZONE, HOUR(10) }, /* -- expired 1983 */ + { "hdt", tDAYZONE, HOUR(10) }, /* -- expired 1986 */ +#endif /* 0 */ +}; + + + +/* ARGSUSED */ +static void +date_error(char *s) +{ + /* NOTREACHED */ +} + +int GetTimeInfo(TIMEINFO *Now) +{ + static time_t NextHour; + static long LastTzone; + struct tm *tm, tmbuf; + int secondsUntilNextHour; + struct timeval tv; + struct tm local; + struct tm gmt; + + /* Get the basic time. */ + if (gettimeofday(&tv, (struct timezone *)NULL) == -1) + return -1; + Now->time = tv.tv_sec; + Now->usec = tv.tv_usec; + + /* Now get the timezone if the last time < HH:00:00 <= now for some HH. */ + if (NextHour <= Now->time) { + if ((tm = localtime(&Now->time)) == NULL) + return -1; + secondsUntilNextHour = 60 * (60 - tm->tm_min) - tm->tm_sec; + /* To get the timezone, compare localtime with GMT. */ + local = *tm; + if ((tm = gmtime(&Now->time)) == NULL) + return -1; + gmt = *tm; + + /* Assume we are never more than 24 hours away. */ + LastTzone = gmt.tm_yday - local.tm_yday; + if (LastTzone > 1) + LastTzone = -24; + else if (LastTzone < -1) + LastTzone = 24; + else + LastTzone *= 24; + + /* Scale in the hours and minutes; ignore seconds. */ + LastTzone += gmt.tm_hour - local.tm_hour; + LastTzone *= 60; + LastTzone += gmt.tm_min - local.tm_min; + NextHour = Now->time + secondsUntilNextHour; + } + Now->tzone = LastTzone; + return 0; +} + + +static time_t +ToSeconds(time_t Hours, time_t Minutes, time_t Seconds, MERIDIAN Meridian) +{ + if (Minutes < 0 || Minutes > 59 || Seconds < 0 || Seconds > 61) + return -1; + if (Meridian == MER24) { + if (Hours < 0 || Hours > 23) + return -1; + } + else { + if (Hours < 1 || Hours > 12) + return -1; + if (Hours == 12) + Hours = 0; + if (Meridian == MERpm) + Hours += 12; + } + return (Hours * 60L + Minutes) * 60L + Seconds; +} + + +static time_t +Convert(time_t Month, time_t Day, time_t Year, time_t Hours, time_t Minutes, time_t Seconds, MERIDIAN Meridian, DSTMODE dst) +{ + static int DaysNormal[13] = { + 0, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 + }; + static int DaysLeap[13] = { + 0, 31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 + }; + static int LeapYears[] = { + 1972, 1976, 1980, 1984, 1988, 1992, 1996, + 2000, 2004, 2008, 2012, 2016, 2020, 2024, 2028, 2032, 2036 + }; + int *yp; + int *mp; + time_t Julian; + int i; + time_t tod; + struct tm tmbuf; + + /* Year should not be passed as a relative value, but absolute one. + so this should not happen, but just ensure it */ + if (Year < 0) + Year = -Year; + if (Year < 100) + Year += 1900; + if (Year < EPOCH) + Year += 100; + for (mp = DaysNormal, yp = LeapYears; yp < ENDOF(LeapYears); yp++) + if (Year == *yp) { + mp = DaysLeap; + break; + } + if (Year < EPOCH || Year > END_OF_TIME + || Month < 1 || Month > 12 + /* NOSTRICT *//* conversion from long may lose accuracy */ + || Day < 1 || Day > mp[(int)Month]) + return -1; + + Julian = Day - 1 + (Year - EPOCH) * 365; + for (yp = LeapYears; yp < ENDOF(LeapYears); yp++, Julian++) + if (Year <= *yp) + break; + for (i = 1; i < Month; i++) + Julian += *++mp; + Julian *= SECSPERDAY; + Julian += yyTimezone * 60L; + if ((tod = ToSeconds(Hours, Minutes, Seconds, Meridian)) < 0) + return -1; + Julian += tod; + tod = Julian; + if (dst == DSTon || (dst == DSTmaybe && localtime(&tod)->tm_isdst)) + Julian -= DST_OFFSET * 60 * 60; + return Julian; +} + + +static time_t +DSTcorrect(time_t Start, time_t Future) +{ + time_t StartDay; + time_t FutureDay; + struct tm tmbuf; + + StartDay = (localtime(&Start)->tm_hour + 1) % 24; + FutureDay = (localtime(&Future)->tm_hour + 1) % 24; + return (Future - Start) + (StartDay - FutureDay) * DST_OFFSET * 60 * 60; +} + + +static time_t +RelativeMonth(time_t Start, time_t RelMonth) +{ + struct tm *tm, tmbuf; + time_t Month; + time_t Year; + + tm = localtime(&Start); + Month = 12 * tm->tm_year + tm->tm_mon + RelMonth; + Year = Month / 12; + Year += 1900; + Month = Month % 12 + 1; + return DSTcorrect(Start, + Convert(Month, (time_t)tm->tm_mday, Year, + (time_t)tm->tm_hour, (time_t)tm->tm_min, (time_t)tm->tm_sec, + MER24, DSTmaybe)); +} + + +static int LookupWord(char *buff, int length, YYSTYPE *yylval) +{ + char *p; + STRING q; + TABLE *tp; + int c; + + p = buff; + c = p[0]; + + /* See if we have an abbreviation for a month. */ + if (length == 3 || (length == 4 && p[3] == '.')) + for (tp = MonthDayTable; tp < ENDOF(MonthDayTable); tp++) { + q = tp->name; + if (c == q[0] && p[1] == q[1] && p[2] == q[2]) { + yylval->Number = tp->value; + return tp->type; + } + } + else + for (tp = MonthDayTable; tp < ENDOF(MonthDayTable); tp++) + if (c == tp->name[0] && strcmp(p, tp->name) == 0) { + yylval->Number = tp->value; + return tp->type; + } + + /* Try for a timezone. */ + for (tp = TimezoneTable; tp < ENDOF(TimezoneTable); tp++) + if (c == tp->name[0] && p[1] == tp->name[1] + && strcmp(p, tp->name) == 0) { + yylval->Number = tp->value; + return tp->type; + } + + /* Try the units table. */ + for (tp = UnitsTable; tp < ENDOF(UnitsTable); tp++) + if (c == tp->name[0] && strcmp(p, tp->name) == 0) { + yylval->Number = tp->value; + return tp->type; + } + + /* Strip off any plural and try the units table again. */ + if (--length > 0 && p[length] == 's') { + p[length] = '\0'; + for (tp = UnitsTable; tp < ENDOF(UnitsTable); tp++) + if (c == tp->name[0] && strcmp(p, tp->name) == 0) { + p[length] = 's'; + yylval->Number = tp->value; + return tp->type; + } + p[length] = 's'; + } + length++; + + /* Drop out any periods. */ + for (p = buff, q = (STRING)buff; *q; q++) + if (*q != '.') + *p++ = *q; + *p = '\0'; + + /* Try the meridians. */ + if (buff[1] == 'm' && buff[2] == '\0') { + if (buff[0] == 'a') { + yylval->Meridian = MERam; + return tMERIDIAN; + } + if (buff[0] == 'p') { + yylval->Meridian = MERpm; + return tMERIDIAN; + } + } + + /* If we saw any periods, try the timezones again. */ + if (p - buff != length) { + c = buff[0]; + for (p = buff, tp = TimezoneTable; tp < ENDOF(TimezoneTable); tp++) + if (c == tp->name[0] && p[1] == tp->name[1] + && strcmp(p, tp->name) == 0) { + yylval->Number = tp->value; + return tp->type; + } + } + + /* Unknown word -- assume GMT timezone. */ + yylval->Number = 0; + return tZONE; +} + + +static int date_lex(YYSTYPE *yylval) +{ + char c; + char *p; + char buff[20]; + int sign; + int i; + int nesting; + + for ( ; ; ) { + /* Get first character after the whitespace. */ + for ( ; ; ) { + while (CTYPE(isspace, (int)*yyInput)) + yyInput++; + c = *yyInput; + + /* Ignore RFC 822 comments, typically time zone names. */ + if (c != LPAREN) + break; + for (nesting = 1; (c = *++yyInput) != RPAREN || --nesting; ) + if (c == LPAREN) + nesting++; + else if (!IS7BIT(c) || c == '\0' || c == '\r' + || (c == '\\' && ((c = *++yyInput) == '\0' || !IS7BIT(c)))) + /* Lexical error: bad comment. */ + return '?'; + yyInput++; + } + + /* A number? */ + if (CTYPE(isdigit, (int)c) || c == '-' || c == '+') { + if (c == '-' || c == '+') { + sign = c == '-' ? -1 : 1; + yyInput++; + if (!CTYPE(isdigit, (int)*yyInput)) + /* Skip the plus or minus sign. */ + continue; + } + else + sign = 0; + for (i = 0; (c = *yyInput++) != '\0' && CTYPE(isdigit, (int)c); ) + i = 10 * i + c - '0'; + yyInput--; + yylval->Number = sign < 0 ? -i : i; + return sign ? tSNUMBER : tUNUMBER; + } + + /* A word? */ + if (CTYPE(isalpha, (int)c)) { + for (p = buff; (c = *yyInput++) == '.' || CTYPE(isalpha, (int)c); ) + if (p < &buff[sizeof buff - 1]) + *p++ = CTYPE(isupper, (int)c) ? tolower(c) : c; + *p = '\0'; + yyInput--; + return LookupWord(buff, p - buff, yylval); + } + + return *yyInput++; + } +} + + +time_t parsedate(char *p, TIMEINFO *now) +{ + struct tm *tm, tmbuf; + TIMEINFO ti; + time_t Start; + + yyInput = p; + if (now == NULL) { + now = &ti; + (void)GetTimeInfo(&ti); + } + + tm = localtime(&now->time); + yyYear = tm->tm_year + 1900; + yyMonth = tm->tm_mon + 1; + yyDay = tm->tm_mday; + yyTimezone = tm->tm_gmtoff/60; + yyDSTmode = DSTmaybe; + yyHour = 0; + yyMinutes = 0; + yySeconds = 0; + yyMeridian = MER24; + yyRelSeconds = 0; + yyRelMonth = 0; + yyHaveDate = 0; + yyHaveRel = 0; + yyHaveTime = 0; + + if (date_parse(YYPARSE_PARAM_ARG) || yyHaveTime > 1 || yyHaveDate > 1) + return -1; + + if (yyHaveDate || yyHaveTime) { + Start = Convert(yyMonth, yyDay, yyYear, yyHour, yyMinutes, yySeconds, + yyMeridian, yyDSTmode); + if (Start < 0) + return -1; + } + else { + Start = now->time; + if (!yyHaveRel) + Start -= (tm->tm_hour * 60L + tm->tm_min) * 60L + tm->tm_sec; + } + + Start += yyRelSeconds; + if (yyRelMonth) + Start += RelativeMonth(Start, yyRelMonth); + + /* Have to do *something* with a legitimate -1 so it's distinguishable + * from the error return value. (Alternately could set errno on error.) */ + return Start == -1 ? 0 : Start; +}