Files
sudo/gram.c
2008-01-05 13:13:06 +00:00

1486 lines
41 KiB
C

#ifndef lint
/*static char yysccsid[] = "from: @(#)yaccpar 1.9 (Berkeley) 02/21/93";*/
static char yyrcsid[]
#if __GNUC__ >= 2
__attribute__ ((unused))
#endif /* __GNUC__ >= 2 */
= "$OpenBSD: skeleton.c,v 1.28 2007/09/03 21:14:58 deraadt Exp $";
#endif
#include <stdlib.h>
#define YYBYACC 1
#define YYMAJOR 1
#define YYMINOR 9
#define YYLEX yylex()
#define YYEMPTY -1
#define yyclearin (yychar=(YYEMPTY))
#define yyerrok (yyerrflag=0)
#define YYRECOVERING() (yyerrflag!=0)
#define YYPREFIX "yy"
#line 2 "gram.y"
/*
* Copyright (c) 1996, 1998-2005, 2007
* Todd C. Miller <Todd.Miller@courtesan.com>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* Sponsored in part by the Defense Advanced Research Projects
* Agency (DARPA) and Air Force Research Laboratory, Air Force
* Materiel Command, USAF, under agreement number F39502-99-1-0512.
*/
#include <config.h>
#include <sys/types.h>
#include <sys/param.h>
#include <stdio.h>
#ifdef STDC_HEADERS
# include <stdlib.h>
# include <stddef.h>
#else
# ifdef HAVE_STDLIB_H
# include <stdlib.h>
# endif
#endif /* STDC_HEADERS */
#ifdef HAVE_STRING_H
# include <string.h>
#else
# ifdef HAVE_STRINGS_H
# include <strings.h>
# endif
#endif /* HAVE_STRING_H */
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif /* HAVE_UNISTD_H */
#if defined(YYBISON) && defined(HAVE_ALLOCA_H) && !defined(__GNUC__)
# include <alloca.h>
#endif /* YYBISON && HAVE_ALLOCA_H && !__GNUC__ */
#include "sudo.h"
#include "parse.h"
#ifndef lint
__unused static const char rcsid[] = "$Sudo$";
#endif /* lint */
/*
* Globals
*/
extern int sudolineno;
extern char *sudoers;
int parse_error;
int pedantic = FALSE;
int verbose = FALSE;
int errorlineno = -1;
char *errorfile = NULL;
struct defaults_list defaults;
struct userspec_list userspecs;
/*
* Local protoypes
*/
static void add_defaults __P((int, struct member *, struct defaults *));
static void add_userspec __P((struct member *, struct privilege *));
static struct defaults *new_default __P((char *, char *, int));
static struct member *new_member __P((char *, int));
void yyerror __P((const char *));
void
yyerror(s)
const char *s;
{
/* Save the line the first error occurred on. */
if (errorlineno == -1) {
errorlineno = sudolineno ? sudolineno - 1 : 0;
errorfile = estrdup(sudoers);
}
if (verbose && s != NULL) {
#ifndef TRACELEXER
(void) fprintf(stderr, ">>> %s: %s near line %d <<<\n", sudoers, s,
sudolineno ? sudolineno - 1 : 0);
#else
(void) fprintf(stderr, "<*> ");
#endif
}
parse_error = TRUE;
}
#line 103 "gram.y"
#ifndef YYSTYPE_DEFINED
#define YYSTYPE_DEFINED
typedef union {
struct cmndspec *cmndspec;
struct defaults *defaults;
struct member *member;
struct runascontainer *runas;
struct privilege *privilege;
struct sudo_command command;
struct cmndtag tag;
char *string;
int tok;
} YYSTYPE;
#endif /* YYSTYPE_DEFINED */
#line 135 "y.tab.c"
#define COMMAND 257
#define ALIAS 258
#define DEFVAR 259
#define NTWKADDR 260
#define NETGROUP 261
#define USERGROUP 262
#define WORD 263
#define DEFAULTS 264
#define DEFAULTS_HOST 265
#define DEFAULTS_USER 266
#define DEFAULTS_RUNAS 267
#define DEFAULTS_CMND 268
#define NOPASSWD 269
#define PASSWD 270
#define NOEXEC 271
#define EXEC 272
#define SETENV 273
#define NOSETENV 274
#define ALL 275
#define COMMENT 276
#define HOSTALIAS 277
#define CMNDALIAS 278
#define USERALIAS 279
#define RUNASALIAS 280
#define ERROR 281
#define YYERRCODE 256
#if defined(__cplusplus) || defined(__STDC__)
const short yylhs[] =
#else
short yylhs[] =
#endif
{ -1,
0, 0, 22, 22, 23, 23, 23, 23, 23, 23,
23, 23, 23, 23, 23, 23, 4, 4, 3, 3,
3, 3, 3, 20, 20, 19, 10, 10, 8, 8,
8, 8, 8, 2, 2, 1, 6, 6, 17, 17,
18, 18, 18, 21, 21, 21, 21, 21, 21, 21,
5, 5, 5, 25, 25, 28, 9, 9, 26, 26,
29, 7, 7, 27, 27, 30, 24, 24, 31, 13,
13, 11, 11, 12, 12, 12, 12, 12, 16, 16,
14, 14, 15, 15, 15,
};
#if defined(__cplusplus) || defined(__STDC__)
const short yylen[] =
#else
short yylen[] =
#endif
{ 2,
0, 1, 1, 2, 1, 2, 2, 2, 2, 2,
2, 2, 3, 3, 3, 3, 1, 3, 1, 2,
3, 3, 3, 1, 3, 3, 1, 2, 1, 1,
1, 1, 1, 1, 3, 3, 1, 2, 0, 3,
1, 3, 2, 0, 2, 2, 2, 2, 2, 2,
1, 1, 1, 1, 3, 3, 1, 3, 1, 3,
3, 1, 3, 1, 3, 3, 1, 3, 3, 1,
3, 1, 2, 1, 1, 1, 1, 1, 1, 3,
1, 2, 1, 1, 1,
};
#if defined(__cplusplus) || defined(__STDC__)
const short yydefred[] =
#else
short yydefred[] =
#endif
{ 0,
0, 74, 76, 77, 78, 0, 0, 0, 0, 0,
75, 5, 0, 0, 0, 0, 0, 0, 70, 72,
0, 0, 3, 6, 0, 0, 17, 0, 29, 32,
31, 33, 30, 0, 27, 0, 57, 0, 0, 53,
52, 51, 0, 37, 62, 0, 0, 0, 54, 0,
0, 59, 0, 0, 67, 0, 0, 64, 73, 0,
0, 24, 0, 4, 0, 0, 0, 20, 0, 28,
0, 0, 0, 0, 38, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 71, 0, 0, 21, 22,
23, 18, 58, 63, 0, 55, 0, 60, 0, 68,
0, 65, 0, 34, 0, 44, 25, 0, 0, 0,
0, 0, 83, 85, 84, 0, 79, 81, 0, 0,
40, 35, 45, 46, 47, 48, 49, 50, 36, 82,
0, 0, 80,
};
#if defined(__cplusplus) || defined(__STDC__)
const short yydgoto[] =
#else
short yydgoto[] =
#endif
{ 18,
104, 105, 27, 28, 44, 45, 46, 35, 61, 37,
19, 20, 21, 117, 118, 119, 106, 110, 62, 63,
112, 22, 23, 54, 48, 51, 57, 49, 52, 58,
55,
};
#if defined(__cplusplus) || defined(__STDC__)
const short yysindex[] =
#else
short yysindex[] =
#endif
{ -33,
-269, 0, 0, 0, 0, -8, 454, 458, 458, -17,
0, 0, -249, -247, -241, -231, -243, 0, 0, 0,
141, -33, 0, 0, -37, -216, 0, -16, 0, 0,
0, 0, 0, -221, 0, -23, 0, -21, -21, 0,
0, 0, -244, 0, 0, -11, -14, -1, 0, -6,
2, 0, 3, 4, 0, 5, 7, 0, 0, 458,
-15, 0, 9, 0, -219, -207, -202, 0, -8, 0,
454, -16, -16, -16, 0, -17, -16, 454, -249, -17,
-247, 458, -241, 458, -231, 0, 23, 454, 0, 0,
0, 0, 0, 0, 24, 0, 25, 0, 27, 0,
27, 0, 217, 0, 28, 0, 0, -3, -9, 29,
23, 250, 0, 0, 0, -222, 0, 0, 30, -3,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-3, 30, 0,};
#if defined(__cplusplus) || defined(__STDC__)
const short yyrindex[] =
#else
short yyrindex[] =
#endif
{ 73,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 75, 0, 0, 1, 0, 0, 156, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 181, 0, 0,
206, 0, 0, 237, 0, 0, 274, 0, 0, 0,
0, 0, 300, 0, 0, 0, 0, 0, 0, 0,
0, 326, 352, 378, 0, 0, 430, 0, 0, 0,
0, 0, 0, 0, 0, 0, 392, 0, 0, 0,
0, 0, 0, 0, 26, 0, 52, 0, 78, 0,
104, 0, 0, 0, 130, 0, 0, 0, 39, 0,
392, 0, 0, 0, 0, 0, 0, 0, 40, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 41, 0,};
#if defined(__cplusplus) || defined(__STDC__)
const short yygindex[] =
#else
short yygindex[] =
#endif
{ 0,
-28, 0, 17, 12, 44, -74, 8, 55, -2, 19,
31, 76, -5, -39, -22, -25, 0, 0, 11, 0,
0, 0, 74, 0, 0, 0, 0, 18, 20, 15,
22,
};
#define YYTABLESIZE 733
#if defined(__cplusplus) || defined(__STDC__)
const short yytable[] =
#else
short yytable[] =
#endif
{ 17,
19, 94, 38, 39, 36, 66, 24, 67, 47, 26,
50, 26, 40, 41, 2, 43, 53, 3, 4, 5,
71, 26, 60, 65, 26, 56, 56, 69, 71, 116,
42, 11, 76, 19, 60, 113, 29, 129, 30, 31,
114, 32, 68, 89, 19, 87, 78, 72, 120, 73,
74, 61, 115, 33, 80, 90, 79, 77, 56, 81,
91, 83, 103, 82, 85, 84, 88, 71, 76, 121,
60, 111, 1, 131, 2, 95, 99, 69, 101, 41,
43, 42, 122, 56, 61, 92, 75, 97, 70, 93,
86, 133, 59, 130, 132, 64, 96, 109, 107, 102,
98, 0, 0, 66, 100, 0, 0, 0, 0, 61,
69, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 26,
0, 0, 0, 0, 0, 69, 66, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 12, 0, 0, 0, 0,
0, 66, 26, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 34, 0, 0, 0, 0, 0, 0,
9, 0, 0, 0, 60, 0, 0, 26, 12, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 10, 0, 0, 0, 0,
0, 0, 0, 9, 0, 0, 0, 0, 0, 0,
0, 0, 1, 0, 2, 0, 0, 3, 4, 5,
6, 7, 8, 9, 10, 25, 8, 25, 10, 40,
41, 11, 12, 13, 14, 15, 16, 25, 0, 17,
25, 0, 0, 0, 113, 0, 19, 42, 19, 114,
0, 19, 19, 19, 19, 19, 19, 19, 19, 8,
0, 115, 0, 11, 108, 19, 19, 19, 19, 19,
19, 56, 43, 56, 0, 0, 56, 56, 56, 56,
56, 56, 56, 56, 0, 0, 0, 0, 0, 7,
56, 56, 56, 56, 56, 56, 11, 61, 0, 61,
0, 0, 61, 61, 61, 61, 61, 61, 61, 61,
0, 0, 0, 0, 0, 15, 61, 61, 61, 61,
61, 61, 7, 69, 0, 69, 0, 0, 69, 69,
69, 69, 69, 69, 69, 69, 0, 0, 0, 0,
0, 13, 69, 69, 69, 69, 69, 69, 15, 66,
0, 66, 0, 0, 66, 66, 66, 66, 66, 66,
66, 66, 0, 0, 0, 0, 0, 14, 66, 66,
66, 66, 66, 66, 13, 26, 0, 26, 0, 0,
26, 26, 26, 26, 26, 26, 26, 26, 29, 0,
30, 31, 0, 32, 26, 26, 26, 26, 26, 26,
14, 12, 0, 12, 0, 33, 12, 12, 12, 12,
12, 12, 12, 12, 39, 0, 0, 0, 0, 16,
12, 12, 12, 12, 12, 12, 9, 0, 9, 0,
0, 9, 9, 9, 9, 9, 9, 9, 9, 0,
0, 0, 0, 0, 0, 9, 9, 9, 9, 9,
9, 10, 16, 10, 0, 0, 10, 10, 10, 10,
10, 10, 10, 10, 2, 0, 0, 3, 4, 5,
10, 10, 10, 10, 10, 10, 34, 0, 0, 0,
17, 11, 8, 0, 8, 0, 0, 8, 8, 8,
8, 8, 8, 8, 8, 0, 40, 41, 0, 0,
0, 8, 8, 8, 8, 8, 8, 0, 123, 124,
125, 126, 127, 128, 42, 0, 0, 0, 0, 11,
0, 11, 0, 0, 11, 11, 11, 11, 11, 11,
11, 11, 0, 0, 0, 0, 0, 0, 11, 11,
11, 11, 11, 11, 0, 7, 0, 7, 0, 0,
7, 7, 7, 7, 7, 7, 7, 7, 0, 0,
0, 0, 0, 0, 7, 7, 7, 7, 7, 7,
0, 15, 0, 15, 0, 0, 15, 15, 15, 15,
15, 15, 15, 15, 0, 0, 0, 0, 0, 0,
15, 15, 15, 15, 15, 15, 0, 13, 0, 13,
0, 0, 13, 13, 13, 13, 13, 13, 13, 13,
0, 0, 0, 0, 0, 0, 13, 13, 13, 13,
13, 13, 0, 14, 0, 14, 0, 0, 14, 14,
14, 14, 14, 14, 14, 14, 0, 0, 39, 39,
0, 0, 14, 14, 14, 14, 14, 14, 0, 0,
39, 39, 39, 39, 39, 39, 39, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 16, 0, 16, 0, 0,
16, 16, 16, 16, 16, 16, 16, 16, 0, 0,
0, 0, 0, 0, 16, 16, 16, 16, 16, 16,
0, 29, 0, 30, 31, 2, 32, 0, 3, 4,
5, 0, 0, 0, 0, 0, 0, 0, 33, 0,
0, 0, 11,
};
#if defined(__cplusplus) || defined(__STDC__)
const short yycheck[] =
#else
short yycheck[] =
#endif
{ 33,
0, 76, 8, 9, 7, 43, 276, 45, 258, 33,
258, 33, 257, 258, 258, 33, 258, 261, 262, 263,
44, 33, 44, 61, 33, 0, 258, 44, 44, 33,
275, 275, 44, 33, 44, 258, 258, 112, 260, 261,
263, 263, 259, 263, 44, 61, 61, 36, 58, 38,
39, 0, 275, 275, 61, 263, 58, 46, 33, 58,
263, 58, 40, 61, 58, 61, 58, 44, 44, 41,
44, 44, 0, 44, 0, 78, 82, 0, 84, 41,
41, 41, 111, 58, 33, 69, 43, 80, 34, 71,
60, 131, 17, 116, 120, 22, 79, 103, 88, 85,
81, -1, -1, 0, 83, -1, -1, -1, -1, 58,
33, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, 0,
-1, -1, -1, -1, -1, 58, 33, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, 0, -1, -1, -1, -1,
-1, 58, 33, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, 33, -1, -1, -1, -1, -1, -1,
0, -1, -1, -1, 44, -1, -1, 58, 33, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, 0, -1, -1, -1, -1,
-1, -1, -1, 33, -1, -1, -1, -1, -1, -1,
-1, -1, 256, -1, 258, -1, -1, 261, 262, 263,
264, 265, 266, 267, 268, 259, 0, 259, 33, 257,
258, 275, 276, 277, 278, 279, 280, 259, -1, 33,
259, -1, -1, -1, 258, -1, 256, 275, 258, 263,
-1, 261, 262, 263, 264, 265, 266, 267, 268, 33,
-1, 275, -1, 0, 58, 275, 276, 277, 278, 279,
280, 256, 33, 258, -1, -1, 261, 262, 263, 264,
265, 266, 267, 268, -1, -1, -1, -1, -1, 0,
275, 276, 277, 278, 279, 280, 33, 256, -1, 258,
-1, -1, 261, 262, 263, 264, 265, 266, 267, 268,
-1, -1, -1, -1, -1, 0, 275, 276, 277, 278,
279, 280, 33, 256, -1, 258, -1, -1, 261, 262,
263, 264, 265, 266, 267, 268, -1, -1, -1, -1,
-1, 0, 275, 276, 277, 278, 279, 280, 33, 256,
-1, 258, -1, -1, 261, 262, 263, 264, 265, 266,
267, 268, -1, -1, -1, -1, -1, 0, 275, 276,
277, 278, 279, 280, 33, 256, -1, 258, -1, -1,
261, 262, 263, 264, 265, 266, 267, 268, 258, -1,
260, 261, -1, 263, 275, 276, 277, 278, 279, 280,
33, 256, -1, 258, -1, 275, 261, 262, 263, 264,
265, 266, 267, 268, 33, -1, -1, -1, -1, 0,
275, 276, 277, 278, 279, 280, 256, -1, 258, -1,
-1, 261, 262, 263, 264, 265, 266, 267, 268, -1,
-1, -1, -1, -1, -1, 275, 276, 277, 278, 279,
280, 256, 33, 258, -1, -1, 261, 262, 263, 264,
265, 266, 267, 268, 258, -1, -1, 261, 262, 263,
275, 276, 277, 278, 279, 280, 33, -1, -1, -1,
33, 275, 256, -1, 258, -1, -1, 261, 262, 263,
264, 265, 266, 267, 268, -1, 257, 258, -1, -1,
-1, 275, 276, 277, 278, 279, 280, -1, 269, 270,
271, 272, 273, 274, 275, -1, -1, -1, -1, 256,
-1, 258, -1, -1, 261, 262, 263, 264, 265, 266,
267, 268, -1, -1, -1, -1, -1, -1, 275, 276,
277, 278, 279, 280, -1, 256, -1, 258, -1, -1,
261, 262, 263, 264, 265, 266, 267, 268, -1, -1,
-1, -1, -1, -1, 275, 276, 277, 278, 279, 280,
-1, 256, -1, 258, -1, -1, 261, 262, 263, 264,
265, 266, 267, 268, -1, -1, -1, -1, -1, -1,
275, 276, 277, 278, 279, 280, -1, 256, -1, 258,
-1, -1, 261, 262, 263, 264, 265, 266, 267, 268,
-1, -1, -1, -1, -1, -1, 275, 276, 277, 278,
279, 280, -1, 256, -1, 258, -1, -1, 261, 262,
263, 264, 265, 266, 267, 268, -1, -1, 257, 258,
-1, -1, 275, 276, 277, 278, 279, 280, -1, -1,
269, 270, 271, 272, 273, 274, 275, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, 256, -1, 258, -1, -1,
261, 262, 263, 264, 265, 266, 267, 268, -1, -1,
-1, -1, -1, -1, 275, 276, 277, 278, 279, 280,
-1, 258, -1, 260, 261, 258, 263, -1, 261, 262,
263, -1, -1, -1, -1, -1, -1, -1, 275, -1,
-1, -1, 275,
};
#define YYFINAL 18
#ifndef YYDEBUG
#define YYDEBUG 0
#endif
#define YYMAXTOKEN 281
#if YYDEBUG
#if defined(__cplusplus) || defined(__STDC__)
const char * const yyname[] =
#else
char *yyname[] =
#endif
{
"end-of-file",0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
"'!'",0,0,0,0,0,0,"'('","')'",0,"'+'","','","'-'",0,0,0,0,0,0,0,0,0,0,0,0,"':'",
0,0,"'='",0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
"COMMAND","ALIAS","DEFVAR","NTWKADDR","NETGROUP","USERGROUP","WORD","DEFAULTS",
"DEFAULTS_HOST","DEFAULTS_USER","DEFAULTS_RUNAS","DEFAULTS_CMND","NOPASSWD",
"PASSWD","NOEXEC","EXEC","SETENV","NOSETENV","ALL","COMMENT","HOSTALIAS",
"CMNDALIAS","USERALIAS","RUNASALIAS","ERROR",
};
#if defined(__cplusplus) || defined(__STDC__)
const char * const yyrule[] =
#else
char *yyrule[] =
#endif
{"$accept : file",
"file :",
"file : line",
"line : entry",
"line : line entry",
"entry : COMMENT",
"entry : error COMMENT",
"entry : userlist privileges",
"entry : USERALIAS useraliases",
"entry : HOSTALIAS hostaliases",
"entry : CMNDALIAS cmndaliases",
"entry : RUNASALIAS runasaliases",
"entry : DEFAULTS defaults_list",
"entry : DEFAULTS_USER userlist defaults_list",
"entry : DEFAULTS_RUNAS userlist defaults_list",
"entry : DEFAULTS_HOST hostlist defaults_list",
"entry : DEFAULTS_CMND cmndlist defaults_list",
"defaults_list : defaults_entry",
"defaults_list : defaults_list ',' defaults_entry",
"defaults_entry : DEFVAR",
"defaults_entry : '!' DEFVAR",
"defaults_entry : DEFVAR '=' WORD",
"defaults_entry : DEFVAR '+' WORD",
"defaults_entry : DEFVAR '-' WORD",
"privileges : privilege",
"privileges : privileges ':' privilege",
"privilege : hostlist '=' cmndspeclist",
"ophost : host",
"ophost : '!' host",
"host : ALIAS",
"host : ALL",
"host : NETGROUP",
"host : NTWKADDR",
"host : WORD",
"cmndspeclist : cmndspec",
"cmndspeclist : cmndspeclist ',' cmndspec",
"cmndspec : runasspec cmndtag opcmnd",
"opcmnd : cmnd",
"opcmnd : '!' cmnd",
"runasspec :",
"runasspec : '(' runaslist ')'",
"runaslist : userlist",
"runaslist : userlist ':' grouplist",
"runaslist : ':' grouplist",
"cmndtag :",
"cmndtag : cmndtag NOPASSWD",
"cmndtag : cmndtag PASSWD",
"cmndtag : cmndtag NOEXEC",
"cmndtag : cmndtag EXEC",
"cmndtag : cmndtag SETENV",
"cmndtag : cmndtag NOSETENV",
"cmnd : ALL",
"cmnd : ALIAS",
"cmnd : COMMAND",
"hostaliases : hostalias",
"hostaliases : hostaliases ':' hostalias",
"hostalias : ALIAS '=' hostlist",
"hostlist : ophost",
"hostlist : hostlist ',' ophost",
"cmndaliases : cmndalias",
"cmndaliases : cmndaliases ':' cmndalias",
"cmndalias : ALIAS '=' cmndlist",
"cmndlist : opcmnd",
"cmndlist : cmndlist ',' opcmnd",
"runasaliases : runasalias",
"runasaliases : runasaliases ':' runasalias",
"runasalias : ALIAS '=' userlist",
"useraliases : useralias",
"useraliases : useraliases ':' useralias",
"useralias : ALIAS '=' userlist",
"userlist : opuser",
"userlist : userlist ',' opuser",
"opuser : user",
"opuser : '!' user",
"user : ALIAS",
"user : ALL",
"user : NETGROUP",
"user : USERGROUP",
"user : WORD",
"grouplist : opgroup",
"grouplist : grouplist ',' opgroup",
"opgroup : group",
"opgroup : '!' group",
"group : ALIAS",
"group : ALL",
"group : WORD",
};
#endif
#ifdef YYSTACKSIZE
#undef YYMAXDEPTH
#define YYMAXDEPTH YYSTACKSIZE
#else
#ifdef YYMAXDEPTH
#define YYSTACKSIZE YYMAXDEPTH
#else
#define YYSTACKSIZE 10000
#define YYMAXDEPTH 10000
#endif
#endif
#define YYINITSTACKSIZE 200
/* LINTUSED */
int yydebug;
int yynerrs;
int yyerrflag;
int yychar;
short *yyssp;
YYSTYPE *yyvsp;
YYSTYPE yyval;
YYSTYPE yylval;
short *yyss;
short *yysslim;
YYSTYPE *yyvs;
int yystacksize;
#line 527 "gram.y"
static struct defaults *
new_default(var, val, op)
char *var;
char *val;
int op;
{
struct defaults *d;
d = emalloc(sizeof(struct defaults));
d->var = var;
d->val = val;
tq_init(&d->binding);
d->type = 0;
d->op = op;
d->prev = d;
d->next = NULL;
return(d);
}
static struct member *
new_member(name, type)
char *name;
int type;
{
struct member *m;
m = emalloc(sizeof(struct member));
m->name = name;
m->type = type;
m->prev = m;
m->next = NULL;
return(m);
}
/*
* Add a list of defaults structures to the defaults list.
* The binding, if non-NULL, specifies a list of hosts, users, or
* runas users the entries apply to (specified by the type).
*/
static void
add_defaults(type, binding, defs)
int type;
struct member *binding;
struct defaults *defs;
{
struct defaults *d;
/*
* Set type and binding (who it applies to) for new entries.
*/
for (d = defs; d != NULL; d = d->next) {
d->type = type;
list2tq(&d->binding, binding);
}
tq_append(&defaults, defs);
}
/*
* Allocate a new struct userspec, populate it, and insert it at the
* and of the userspecs list.
*/
static void
add_userspec(members, privs)
struct member *members;
struct privilege *privs;
{
struct userspec *u;
u = emalloc(sizeof(*u));
list2tq(&u->users, members);
list2tq(&u->privileges, privs);
u->prev = u;
u->next = NULL;
tq_append(&userspecs, u);
}
/*
* Free up space used by data structures from a previous parser run and sets
* the current sudoers file to path.
*/
void
init_parser(path, quiet)
char *path;
int quiet;
{
struct defaults *d;
struct member *m, *binding;
struct userspec *us;
struct privilege *priv;
struct cmndspec *cs;
while ((us = tq_pop(&userspecs)) != NULL) {
while ((m = tq_pop(&us->users)) != NULL) {
efree(m->name);
efree(m);
}
while ((priv = tq_pop(&us->privileges)) != NULL) {
struct member *runasuser = NULL, *runasgroup = NULL;
while ((m = tq_pop(&priv->hostlist)) != NULL) {
efree(m->name);
efree(m);
}
while ((cs = tq_pop(&priv->cmndlist)) != NULL) {
if (tq_last(&cs->runasuserlist) != runasuser) {
runasuser = tq_last(&cs->runasuserlist);
while ((m = tq_pop(&cs->runasuserlist)) != NULL) {
efree(m->name);
efree(m);
}
}
if (tq_last(&cs->runasgrouplist) != runasgroup) {
runasgroup = tq_last(&cs->runasgrouplist);
while ((m = tq_pop(&cs->runasgrouplist)) != NULL) {
efree(m->name);
efree(m);
}
}
efree(cs->cmnd->name);
efree(cs->cmnd);
efree(cs);
}
efree(priv);
}
}
tq_init(&userspecs);
binding = NULL;
while ((d = tq_pop(&defaults)) != NULL) {
if (tq_last(&d->binding) != binding) {
binding = tq_last(&d->binding);
while ((m = tq_pop(&d->binding)) != NULL) {
efree(m->name);
efree(m);
}
}
efree(d->var);
efree(d->val);
efree(d);
}
tq_init(&defaults);
init_aliases();
efree(sudoers);
sudoers = path ? estrdup(path) : NULL;
parse_error = FALSE;
errorlineno = -1;
sudolineno = 1;
verbose = !quiet;
}
#line 685 "y.tab.c"
/* allocate initial stack or double stack size, up to YYMAXDEPTH */
#if defined(__cplusplus) || defined(__STDC__)
static int yygrowstack(void)
#else
static int yygrowstack()
#endif
{
int newsize, i;
short *newss;
YYSTYPE *newvs;
if ((newsize = yystacksize) == 0)
newsize = YYINITSTACKSIZE;
else if (newsize >= YYMAXDEPTH)
return -1;
else if ((newsize *= 2) > YYMAXDEPTH)
newsize = YYMAXDEPTH;
i = yyssp - yyss;
#ifdef SIZE_MAX
#define YY_SIZE_MAX SIZE_MAX
#else
#define YY_SIZE_MAX 0xffffffffU
#endif
if (newsize && YY_SIZE_MAX / newsize < sizeof *newss)
goto bail;
newss = yyss ? (short *)realloc(yyss, newsize * sizeof *newss) :
(short *)malloc(newsize * sizeof *newss); /* overflow check above */
if (newss == NULL)
goto bail;
yyss = newss;
yyssp = newss + i;
if (newsize && YY_SIZE_MAX / newsize < sizeof *newvs)
goto bail;
newvs = yyvs ? (YYSTYPE *)realloc(yyvs, newsize * sizeof *newvs) :
(YYSTYPE *)malloc(newsize * sizeof *newvs); /* overflow check above */
if (newvs == NULL)
goto bail;
yyvs = newvs;
yyvsp = newvs + i;
yystacksize = newsize;
yysslim = yyss + newsize - 1;
return 0;
bail:
if (yyss)
free(yyss);
if (yyvs)
free(yyvs);
yyss = yyssp = NULL;
yyvs = yyvsp = NULL;
yystacksize = 0;
return -1;
}
#define YYABORT goto yyabort
#define YYREJECT goto yyabort
#define YYACCEPT goto yyaccept
#define YYERROR goto yyerrlab
int
#if defined(__cplusplus) || defined(__STDC__)
yyparse(void)
#else
yyparse()
#endif
{
int yym, yyn, yystate;
#if YYDEBUG
#if defined(__cplusplus) || defined(__STDC__)
const char *yys;
#else /* !(defined(__cplusplus) || defined(__STDC__)) */
char *yys;
#endif /* !(defined(__cplusplus) || defined(__STDC__)) */
if ((yys = getenv("YYDEBUG")))
{
yyn = *yys;
if (yyn >= '0' && yyn <= '9')
yydebug = yyn - '0';
}
#endif /* YYDEBUG */
yynerrs = 0;
yyerrflag = 0;
yychar = (-1);
if (yyss == NULL && yygrowstack()) goto yyoverflow;
yyssp = yyss;
yyvsp = yyvs;
*yyssp = yystate = 0;
yyloop:
if ((yyn = yydefred[yystate]) != 0) goto yyreduce;
if (yychar < 0)
{
if ((yychar = yylex()) < 0) yychar = 0;
#if YYDEBUG
if (yydebug)
{
yys = 0;
if (yychar <= YYMAXTOKEN) yys = yyname[yychar];
if (!yys) yys = "illegal-symbol";
printf("%sdebug: state %d, reading %d (%s)\n",
YYPREFIX, yystate, yychar, yys);
}
#endif
}
if ((yyn = yysindex[yystate]) && (yyn += yychar) >= 0 &&
yyn <= YYTABLESIZE && yycheck[yyn] == yychar)
{
#if YYDEBUG
if (yydebug)
printf("%sdebug: state %d, shifting to state %d\n",
YYPREFIX, yystate, yytable[yyn]);
#endif
if (yyssp >= yysslim && yygrowstack())
{
goto yyoverflow;
}
*++yyssp = yystate = yytable[yyn];
*++yyvsp = yylval;
yychar = (-1);
if (yyerrflag > 0) --yyerrflag;
goto yyloop;
}
if ((yyn = yyrindex[yystate]) && (yyn += yychar) >= 0 &&
yyn <= YYTABLESIZE && yycheck[yyn] == yychar)
{
yyn = yytable[yyn];
goto yyreduce;
}
if (yyerrflag) goto yyinrecovery;
#if defined(lint) || defined(__GNUC__)
goto yynewerror;
#endif
yynewerror:
yyerror("syntax error");
#if defined(lint) || defined(__GNUC__)
goto yyerrlab;
#endif
yyerrlab:
++yynerrs;
yyinrecovery:
if (yyerrflag < 3)
{
yyerrflag = 3;
for (;;)
{
if ((yyn = yysindex[*yyssp]) && (yyn += YYERRCODE) >= 0 &&
yyn <= YYTABLESIZE && yycheck[yyn] == YYERRCODE)
{
#if YYDEBUG
if (yydebug)
printf("%sdebug: state %d, error recovery shifting\
to state %d\n", YYPREFIX, *yyssp, yytable[yyn]);
#endif
if (yyssp >= yysslim && yygrowstack())
{
goto yyoverflow;
}
*++yyssp = yystate = yytable[yyn];
*++yyvsp = yylval;
goto yyloop;
}
else
{
#if YYDEBUG
if (yydebug)
printf("%sdebug: error recovery discarding state %d\n",
YYPREFIX, *yyssp);
#endif
if (yyssp <= yyss) goto yyabort;
--yyssp;
--yyvsp;
}
}
}
else
{
if (yychar == 0) goto yyabort;
#if YYDEBUG
if (yydebug)
{
yys = 0;
if (yychar <= YYMAXTOKEN) yys = yyname[yychar];
if (!yys) yys = "illegal-symbol";
printf("%sdebug: state %d, error recovery discards token %d (%s)\n",
YYPREFIX, yystate, yychar, yys);
}
#endif
yychar = (-1);
goto yyloop;
}
yyreduce:
#if YYDEBUG
if (yydebug)
printf("%sdebug: state %d, reducing by rule %d (%s)\n",
YYPREFIX, yystate, yyn, yyrule[yyn]);
#endif
yym = yylen[yyn];
yyval = yyvsp[1-yym];
switch (yyn)
{
case 1:
#line 168 "gram.y"
{ ; }
break;
case 5:
#line 176 "gram.y"
{
;
}
break;
case 6:
#line 179 "gram.y"
{
yyerrok;
}
break;
case 7:
#line 182 "gram.y"
{
add_userspec(yyvsp[-1].member, yyvsp[0].privilege);
}
break;
case 8:
#line 185 "gram.y"
{
;
}
break;
case 9:
#line 188 "gram.y"
{
;
}
break;
case 10:
#line 191 "gram.y"
{
;
}
break;
case 11:
#line 194 "gram.y"
{
;
}
break;
case 12:
#line 197 "gram.y"
{
add_defaults(DEFAULTS, NULL, yyvsp[0].defaults);
}
break;
case 13:
#line 200 "gram.y"
{
add_defaults(DEFAULTS_USER, yyvsp[-1].member, yyvsp[0].defaults);
}
break;
case 14:
#line 203 "gram.y"
{
add_defaults(DEFAULTS_RUNAS, yyvsp[-1].member, yyvsp[0].defaults);
}
break;
case 15:
#line 206 "gram.y"
{
add_defaults(DEFAULTS_HOST, yyvsp[-1].member, yyvsp[0].defaults);
}
break;
case 16:
#line 209 "gram.y"
{
add_defaults(DEFAULTS_CMND, yyvsp[-1].member, yyvsp[0].defaults);
}
break;
case 18:
#line 215 "gram.y"
{
list_append(yyvsp[-2].defaults, yyvsp[0].defaults);
yyval.defaults = yyvsp[-2].defaults;
}
break;
case 19:
#line 221 "gram.y"
{
yyval.defaults = new_default(yyvsp[0].string, NULL, TRUE);
}
break;
case 20:
#line 224 "gram.y"
{
yyval.defaults = new_default(yyvsp[0].string, NULL, FALSE);
}
break;
case 21:
#line 227 "gram.y"
{
yyval.defaults = new_default(yyvsp[-2].string, yyvsp[0].string, TRUE);
}
break;
case 22:
#line 230 "gram.y"
{
yyval.defaults = new_default(yyvsp[-2].string, yyvsp[0].string, '+');
}
break;
case 23:
#line 233 "gram.y"
{
yyval.defaults = new_default(yyvsp[-2].string, yyvsp[0].string, '-');
}
break;
case 25:
#line 239 "gram.y"
{
list_append(yyvsp[-2].privilege, yyvsp[0].privilege);
yyval.privilege = yyvsp[-2].privilege;
}
break;
case 26:
#line 245 "gram.y"
{
struct privilege *p = emalloc(sizeof(*p));
list2tq(&p->hostlist, yyvsp[-2].member);
list2tq(&p->cmndlist, yyvsp[0].cmndspec);
p->prev = p;
p->next = NULL;
yyval.privilege = p;
}
break;
case 27:
#line 255 "gram.y"
{
yyval.member = yyvsp[0].member;
yyval.member->negated = FALSE;
}
break;
case 28:
#line 259 "gram.y"
{
yyval.member = yyvsp[0].member;
yyval.member->negated = TRUE;
}
break;
case 29:
#line 265 "gram.y"
{
yyval.member = new_member(yyvsp[0].string, ALIAS);
}
break;
case 30:
#line 268 "gram.y"
{
yyval.member = new_member(NULL, ALL);
}
break;
case 31:
#line 271 "gram.y"
{
yyval.member = new_member(yyvsp[0].string, NETGROUP);
}
break;
case 32:
#line 274 "gram.y"
{
yyval.member = new_member(yyvsp[0].string, NTWKADDR);
}
break;
case 33:
#line 277 "gram.y"
{
yyval.member = new_member(yyvsp[0].string, WORD);
}
break;
case 35:
#line 283 "gram.y"
{
list_append(yyvsp[-2].cmndspec, yyvsp[0].cmndspec);
/* propagate tags and runas list */
if (yyvsp[0].cmndspec->tags.nopasswd == UNSPEC)
yyvsp[0].cmndspec->tags.nopasswd = yyvsp[0].cmndspec->prev->tags.nopasswd;
if (yyvsp[0].cmndspec->tags.noexec == UNSPEC)
yyvsp[0].cmndspec->tags.noexec = yyvsp[0].cmndspec->prev->tags.noexec;
if (yyvsp[0].cmndspec->tags.setenv == UNSPEC &&
yyvsp[0].cmndspec->prev->tags.setenv != IMPLIED)
yyvsp[0].cmndspec->tags.setenv = yyvsp[0].cmndspec->prev->tags.setenv;
if ((tq_empty(&yyvsp[0].cmndspec->runasuserlist) &&
tq_empty(&yyvsp[0].cmndspec->runasgrouplist)) &&
(!tq_empty(&yyvsp[0].cmndspec->prev->runasuserlist) ||
!tq_empty(&yyvsp[0].cmndspec->prev->runasgrouplist))) {
yyvsp[0].cmndspec->runasuserlist = yyvsp[0].cmndspec->prev->runasuserlist;
yyvsp[0].cmndspec->runasgrouplist = yyvsp[0].cmndspec->prev->runasgrouplist;
}
yyval.cmndspec = yyvsp[-2].cmndspec;
}
break;
case 36:
#line 304 "gram.y"
{
struct cmndspec *cs = emalloc(sizeof(*cs));
if (yyvsp[-2].runas != NULL) {
list2tq(&cs->runasuserlist, yyvsp[-2].runas->runasusers);
list2tq(&cs->runasgrouplist, yyvsp[-2].runas->runasgroups);
efree(yyvsp[-2].runas);
} else {
tq_init(&cs->runasuserlist);
tq_init(&cs->runasgrouplist);
}
cs->tags = yyvsp[-1].tag;
cs->cmnd = yyvsp[0].member;
cs->prev = cs;
cs->next = NULL;
/* sudo "ALL" implies the SETENV tag */
if (cs->cmnd->type == ALL && !cs->cmnd->negated &&
cs->tags.setenv == UNSPEC)
cs->tags.setenv = IMPLIED;
yyval.cmndspec = cs;
}
break;
case 37:
#line 326 "gram.y"
{
yyval.member = yyvsp[0].member;
yyval.member->negated = FALSE;
}
break;
case 38:
#line 330 "gram.y"
{
yyval.member = yyvsp[0].member;
yyval.member->negated = TRUE;
}
break;
case 39:
#line 336 "gram.y"
{
yyval.runas = NULL;
}
break;
case 40:
#line 339 "gram.y"
{
yyval.runas = yyvsp[-1].runas;
}
break;
case 41:
#line 344 "gram.y"
{
yyval.runas = emalloc(sizeof(struct runascontainer));
yyval.runas->runasusers = yyvsp[0].member;
yyval.runas->runasgroups = NULL;
}
break;
case 42:
#line 349 "gram.y"
{
yyval.runas = emalloc(sizeof(struct runascontainer));
yyval.runas->runasusers = yyvsp[-2].member;
yyval.runas->runasgroups = yyvsp[0].member;
}
break;
case 43:
#line 354 "gram.y"
{
yyval.runas = emalloc(sizeof(struct runascontainer));
yyval.runas->runasusers = NULL;
yyval.runas->runasgroups = yyvsp[0].member;
}
break;
case 44:
#line 361 "gram.y"
{
yyval.tag.nopasswd = yyval.tag.noexec = yyval.tag.setenv = UNSPEC;
}
break;
case 45:
#line 364 "gram.y"
{
yyval.tag.nopasswd = TRUE;
}
break;
case 46:
#line 367 "gram.y"
{
yyval.tag.nopasswd = FALSE;
}
break;
case 47:
#line 370 "gram.y"
{
yyval.tag.noexec = TRUE;
}
break;
case 48:
#line 373 "gram.y"
{
yyval.tag.noexec = FALSE;
}
break;
case 49:
#line 376 "gram.y"
{
yyval.tag.setenv = TRUE;
}
break;
case 50:
#line 379 "gram.y"
{
yyval.tag.setenv = FALSE;
}
break;
case 51:
#line 384 "gram.y"
{
yyval.member = new_member(NULL, ALL);
}
break;
case 52:
#line 387 "gram.y"
{
yyval.member = new_member(yyvsp[0].string, ALIAS);
}
break;
case 53:
#line 390 "gram.y"
{
struct sudo_command *c = emalloc(sizeof(*c));
c->cmnd = yyvsp[0].command.cmnd;
c->args = yyvsp[0].command.args;
yyval.member = new_member((char *)c, COMMAND);
}
break;
case 56:
#line 402 "gram.y"
{
char *s;
if ((s = alias_add(yyvsp[-2].string, HOSTALIAS, yyvsp[0].member)) != NULL) {
yyerror(s);
YYERROR;
}
}
break;
case 58:
#line 412 "gram.y"
{
list_append(yyvsp[-2].member, yyvsp[0].member);
yyval.member = yyvsp[-2].member;
}
break;
case 61:
#line 422 "gram.y"
{
char *s;
if ((s = alias_add(yyvsp[-2].string, CMNDALIAS, yyvsp[0].member)) != NULL) {
yyerror(s);
YYERROR;
}
}
break;
case 63:
#line 432 "gram.y"
{
list_append(yyvsp[-2].member, yyvsp[0].member);
yyval.member = yyvsp[-2].member;
}
break;
case 66:
#line 442 "gram.y"
{
char *s;
if ((s = alias_add(yyvsp[-2].string, RUNASALIAS, yyvsp[0].member)) != NULL) {
yyerror(s);
YYERROR;
}
}
break;
case 69:
#line 455 "gram.y"
{
char *s;
if ((s = alias_add(yyvsp[-2].string, USERALIAS, yyvsp[0].member)) != NULL) {
yyerror(s);
YYERROR;
}
}
break;
case 71:
#line 465 "gram.y"
{
list_append(yyvsp[-2].member, yyvsp[0].member);
yyval.member = yyvsp[-2].member;
}
break;
case 72:
#line 471 "gram.y"
{
yyval.member = yyvsp[0].member;
yyval.member->negated = FALSE;
}
break;
case 73:
#line 475 "gram.y"
{
yyval.member = yyvsp[0].member;
yyval.member->negated = TRUE;
}
break;
case 74:
#line 481 "gram.y"
{
yyval.member = new_member(yyvsp[0].string, ALIAS);
}
break;
case 75:
#line 484 "gram.y"
{
yyval.member = new_member(NULL, ALL);
}
break;
case 76:
#line 487 "gram.y"
{
yyval.member = new_member(yyvsp[0].string, NETGROUP);
}
break;
case 77:
#line 490 "gram.y"
{
yyval.member = new_member(yyvsp[0].string, USERGROUP);
}
break;
case 78:
#line 493 "gram.y"
{
yyval.member = new_member(yyvsp[0].string, WORD);
}
break;
case 80:
#line 499 "gram.y"
{
list_append(yyvsp[-2].member, yyvsp[0].member);
yyval.member = yyvsp[-2].member;
}
break;
case 81:
#line 505 "gram.y"
{
yyval.member = yyvsp[0].member;
yyval.member->negated = FALSE;
}
break;
case 82:
#line 509 "gram.y"
{
yyval.member = yyvsp[0].member;
yyval.member->negated = TRUE;
}
break;
case 83:
#line 515 "gram.y"
{
yyval.member = new_member(yyvsp[0].string, ALIAS);
}
break;
case 84:
#line 518 "gram.y"
{
yyval.member = new_member(NULL, ALL);
}
break;
case 85:
#line 521 "gram.y"
{
yyval.member = new_member(yyvsp[0].string, WORD);
}
break;
#line 1364 "y.tab.c"
}
yyssp -= yym;
yystate = *yyssp;
yyvsp -= yym;
yym = yylhs[yyn];
if (yystate == 0 && yym == 0)
{
#if YYDEBUG
if (yydebug)
printf("%sdebug: after reduction, shifting from state 0 to\
state %d\n", YYPREFIX, YYFINAL);
#endif
yystate = YYFINAL;
*++yyssp = YYFINAL;
*++yyvsp = yyval;
if (yychar < 0)
{
if ((yychar = yylex()) < 0) yychar = 0;
#if YYDEBUG
if (yydebug)
{
yys = 0;
if (yychar <= YYMAXTOKEN) yys = yyname[yychar];
if (!yys) yys = "illegal-symbol";
printf("%sdebug: state %d, reading %d (%s)\n",
YYPREFIX, YYFINAL, yychar, yys);
}
#endif
}
if (yychar == 0) goto yyaccept;
goto yyloop;
}
if ((yyn = yygindex[yym]) && (yyn += yystate) >= 0 &&
yyn <= YYTABLESIZE && yycheck[yyn] == yystate)
yystate = yytable[yyn];
else
yystate = yydgoto[yym];
#if YYDEBUG
if (yydebug)
printf("%sdebug: after reduction, shifting from state %d \
to state %d\n", YYPREFIX, *yyssp, yystate);
#endif
if (yyssp >= yysslim && yygrowstack())
{
goto yyoverflow;
}
*++yyssp = yystate;
*++yyvsp = yyval;
goto yyloop;
yyoverflow:
yyerror("yacc stack overflow");
yyabort:
if (yyss)
free(yyss);
if (yyvs)
free(yyvs);
yyss = yyssp = NULL;
yyvs = yyvsp = NULL;
yystacksize = 0;
return (1);
yyaccept:
if (yyss)
free(yyss);
if (yyvs)
free(yyvs);
yyss = yyssp = NULL;
yyvs = yyvsp = NULL;
yystacksize = 0;
return (0);
}