xref: /onnv-gate/usr/src/lib/gss_mechs/mech_krb5/krb5/krb/deltat.c (revision 781:57319a72b15f)

#pragma ident	"%Z%%M%	%I%	%E% SMI"

/*  A Bison parser, made from ./x-deltat.y
    by GNU Bison version 1.28  */

#define YYBISON 1  /* Identify Bison output.  */

#define	NUM	257
#define	LONGNUM	258
#define	OVERFLOW	259
#define	WS	260

#line 38 "./x-deltat.y"


#include <ctype.h>
#include <errno.h>
#include <k5-int.h>

struct param {
    krb5_int32 delta;
    char *p;
};

#define YYPARSE_PARAM tmv

#define MAX_TIME KRB5_INT32_MAX
#define MIN_TIME KRB5_INT32_MIN

#define DAY (24 * 3600)
#define HOUR 3600

#define MAX_DAY (MAX_TIME / DAY)
#define MIN_DAY (MIN_TIME / DAY)
#define MAX_HOUR (MAX_TIME / HOUR)
#define MIN_HOUR (MIN_TIME / HOUR)
#define MAX_MIN (MAX_TIME / 60)
#define MIN_MIN (MIN_TIME / 60)

/* An explanation of the tests being performed.
   We do not want to overflow a 32 bit integer with out manipulations,
   even for testing for overflow. Therefore we rely on the following:

   The lex parser will not return a number > MAX_TIME (which is out 32
   bit limit).

   Therefore, seconds (s) will require
       MIN_TIME < s < MAX_TIME

   For subsequent tests, the logic is as follows:

      If A < MAX_TIME and  B < MAX_TIME

      If we want to test if A+B < MAX_TIME, there are two cases
        if (A > 0)
         then A + B < MAX_TIME if B < MAX_TIME - A
	else A + B < MAX_TIME  always.

      if we want to test if MIN_TIME < A + B
          if A > 0 - then nothing to test
          otherwise, we test if MIN_TIME - A < B.

   We of course are testing for:
          MIN_TIME < A + B < MAX_TIME
*/


#define DAY_NOT_OK(d) (d) > MAX_DAY || (d) < MIN_DAY
#define HOUR_NOT_OK(h) (h) > MAX_HOUR || (h) < MIN_HOUR
#define MIN_NOT_OK(m) (m) > MAX_MIN || (m) < MIN_MIN
#define SUM_OK(a, b) (((a) > 0) ? ( (b) <= MAX_TIME - (a)) : (MIN_TIME - (a) <= (b)))
#define DO_SUM(res, a, b) if (!SUM_OK((a), (b))) YYERROR; \
                          res = (a) + (b)


#define OUT_D ((struct param *)tmv)->delta
#define DO(D,H,M,S) \
 { \
     /* Overflow testing - this does not handle negative values well.. */ \
     if (DAY_NOT_OK(D) || HOUR_NOT_OK(H) || MIN_NOT_OK(M)) YYERROR; \
     OUT_D = D * DAY; \
     DO_SUM(OUT_D, OUT_D, H * HOUR); \
     DO_SUM(OUT_D, OUT_D, M * 60); \
     DO_SUM(OUT_D, OUT_D, S); \
 }

static int mylex (int *, char **);
#define YYLEX_PARAM (&((struct param *)tmv)->p)
#undef yylex
#define yylex(U, P)    mylex (&(U)->val, (P))

#undef yyerror
#define yyerror(MSG)

static int yyparse (void *);


#line 125 "./x-deltat.y"
typedef union { int val; } YYSTYPE;
#include <stdio.h>

#ifndef __cplusplus
#ifndef __STDC__
#define const
#endif
#endif



#define	YYFINAL		42
#define	YYFLAG		-32768
#define	YYNTBASE	13

#define YYTRANSLATE(x) ((unsigned)(x) <= 260 ? yytranslate[x] : 22)

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,     2,     6,     2,     2,     2,     2,     2,
     2,     2,     2,     2,     2,     2,     2,     7,     2,     2,
     2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
     2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
     2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
     2,     2,     2,     2,     2,     2,     2,     2,     2,     8,
     2,     2,     2,     9,     2,     2,     2,     2,    10,     2,
     2,     2,     2,     2,    11,     2,     2,     2,     2,     2,
     2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
     2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
     2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
     2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
     2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
     2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
     2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
     2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
     2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
     2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
     2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
     2,     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,    12
};

#if YYDEBUG != 0
static const short yyprhs[] = {     0,
     0,     2,     4,     6,     8,    11,    12,    14,    17,    20,
    24,    28,    32,    35,    43,    49,    53,    55,    57,    61,
    63,    67,    69
};

static const short yyrhs[] = {    18,
     0,     3,     0,     4,     0,    14,     0,     6,    14,     0,
     0,    12,     0,    16,    15,     0,    16,     5,     0,    17,
     8,    19,     0,    17,     9,    20,     0,    17,    10,    21,
     0,    17,    11,     0,    17,     6,     3,     7,     3,     7,
     3,     0,    17,     7,     3,     7,     3,     0,    17,     7,
     3,     0,    17,     0,    20,     0,    17,     9,    20,     0,
    21,     0,    17,    10,    21,     0,    16,     0,    17,    11,
     0
};

#endif

#if YYDEBUG != 0
static const short yyrline[] = { 0,
   136,   137,   137,   138,   138,   139,   139,   140,   141,   142,
   144,   145,   146,   147,   148,   149,   150,   153,   155,   157,
   159,   161,   163
};
#endif


#if YYDEBUG != 0 || defined (YYERROR_VERBOSE)

static const char * const yytname[] = {   "$","error","$undefined.","NUM","LONGNUM",
"OVERFLOW","'-'","':'","'d'","'h'","'m'","'s'","WS","start","posnum","num","ws",
"wsnum","deltat","opt_hms","opt_ms","opt_s", NULL
};
#endif

static const short yyr1[] = {     0,
    13,    14,    14,    15,    15,    16,    16,    17,    17,    18,
    18,    18,    18,    18,    18,    18,    18,    19,    19,    20,
    20,    21,    21
};

static const short yyr2[] = {     0,
     1,     1,     1,     1,     2,     0,     1,     2,     2,     3,
     3,     3,     2,     7,     5,     3,     1,     1,     3,     1,
     3,     1,     2
};

static const short yydefact[] = {     6,
     7,     0,    17,     1,     2,     3,     9,     0,     4,     8,
     0,     0,     6,     6,     6,    13,     5,     0,    16,    22,
     0,    10,    18,    20,     0,    11,     0,    12,     0,     0,
     6,     6,    23,     0,    15,    19,    21,     0,    14,     0,
     0,     0
};

static const short yydefgoto[] = {    40,
     9,    10,    20,    25,     4,    22,    23,    24
};

static const short yypact[] = {   -10,
-32768,    18,    -2,-32768,-32768,-32768,-32768,    13,-32768,-32768,
    11,    16,   -10,   -10,   -10,-32768,-32768,    20,    21,    18,
     1,-32768,-32768,-32768,    15,-32768,    19,-32768,    26,    28,
   -10,   -10,-32768,    27,-32768,-32768,-32768,    30,-32768,    35,
    36,-32768
};

static const short yypgoto[] = {-32768,
    29,-32768,    38,     0,-32768,-32768,   -13,   -12
};


#define	YYLAST		38


static const short yytable[] = {     3,
    26,     1,    28,    11,    12,    13,    14,    15,    16,    31,
    32,    33,    21,    18,    27,     5,     6,    36,    19,    37,
     5,     6,     7,     8,    32,    33,    29,    30,    34,    33,
    35,    27,    39,    38,    41,    42,    17,     2
};

static const short yycheck[] = {     0,
    14,    12,    15,     6,     7,     8,     9,    10,    11,     9,
    10,    11,    13,     3,    15,     3,     4,    31,     3,    32,
     3,     4,     5,     6,    10,    11,     7,     7,     3,    11,
     3,    32,     3,     7,     0,     0,     8,     0
};
#define YYPURE 1

/* -*-C-*-  Note some compilers choke on comments on `#line' lines.  */
#line 3 "/usr/share/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/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 138 "./x-deltat.y"
{ yyval.val = - yyvsp[0].val; ;
    break;}
case 8:
#line 140 "./x-deltat.y"
{ yyval.val = yyvsp[0].val; ;
    break;}
case 9:
#line 141 "./x-deltat.y"
{ YYERROR ;
    break;}
case 10:
#line 143 "./x-deltat.y"
{ DO (yyvsp[-2].val,  0,  0, yyvsp[0].val); ;
    break;}
case 11:
#line 144 "./x-deltat.y"
{ DO ( 0, yyvsp[-2].val,  0, yyvsp[0].val); ;
    break;}
case 12:
#line 145 "./x-deltat.y"
{ DO ( 0,  0, yyvsp[-2].val, yyvsp[0].val); ;
    break;}
case 13:
#line 146 "./x-deltat.y"
{ DO ( 0,  0,  0, yyvsp[-1].val); ;
    break;}
case 14:
#line 147 "./x-deltat.y"
{ DO (yyvsp[-6].val, yyvsp[-4].val, yyvsp[-2].val, yyvsp[0].val); ;
    break;}
case 15:
#line 148 "./x-deltat.y"
{ DO ( 0, yyvsp[-4].val, yyvsp[-2].val, yyvsp[0].val); ;
    break;}
case 16:
#line 149 "./x-deltat.y"
{ DO ( 0, yyvsp[-2].val, yyvsp[0].val,  0); ;
    break;}
case 17:
#line 150 "./x-deltat.y"
{ DO ( 0,  0,  0, yyvsp[0].val); ;
    break;}
case 19:
#line 155 "./x-deltat.y"
{ if (HOUR_NOT_OK(yyvsp[-2].val)) YYERROR;
	                                  DO_SUM(yyval.val, yyvsp[-2].val * 3600, yyvsp[0].val); ;
    break;}
case 21:
#line 159 "./x-deltat.y"
{ if (MIN_NOT_OK(yyvsp[-2].val)) YYERROR;
	                                  DO_SUM(yyval.val, yyvsp[-2].val * 60, yyvsp[0].val); ;
    break;}
case 22:
#line 162 "./x-deltat.y"
{ yyval.val = 0; ;
    break;}
}
   /* the action file gets copied in in place of this dollarsign */
#line 543 "/usr/share/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 165 "./x-deltat.y"


static int
mylex (krb5_int32 *intp, char **pp)
{
    int num, c;
#define P (*pp)
    char *orig_p = P;

#ifdef isascii
    if (!isascii (*P))
	return 0;
#endif
    switch (c = *P++) {
    case '-':
    case ':':
    case 'd':
    case 'h':
    case 'm':
    case 's':
	return c;
    case '0':
    case '1':
    case '2':
    case '3':
    case '4':
    case '5':
    case '6':
    case '7':
    case '8':
    case '9':
	/* XXX assumes ASCII */
	num = c - '0';
	while (isdigit ((int) *P)) {
	  if (num > MAX_TIME / 10)
	    return OVERFLOW;
	    num *= 10;
	    if (num > MAX_TIME - (*P - '0'))
	      return OVERFLOW;
	    num += *P++ - '0';
	}
	*intp = num;
	return (P - orig_p > 2) ? LONGNUM : NUM;
    case ' ':
    case '\t':
    case '\n':
	while (isspace ((int) *P))
	    P++;
	return WS;
    default:
	return YYEOF;
    }
}

krb5_error_code KRB5_CALLCONV
krb5_string_to_deltat(char *string, krb5_deltat *deltatp)
{
    struct param p;
    p.delta = 0;
    p.p = string;
    if (yyparse (&p))
	return KRB5_DELTAT_BADFORMAT;
    *deltatp = p.delta;
    return 0;
}