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2ce523cd1ff24f98caf7fbddffc3845932df318f
sudo/sudo.tab.c
Todd C. Miller 2ce523cd1f o add a 'val' element to aliasinfo struct and move -> parse.h 
o find_alias() now returns an aliasinfo * instead of boolean
o add_alias() now takes a value parameter to store in the aliasinfo.val
o The cmnd, hostspec, runasuser, and user rules now return:
1) positive match
0) negative match (due to '!')
-1) no match
This means setting $$ explicitly in all cases, which I should have done in
the first place.  It also means that we always store a value that is != -1
and when we see a '!' we can set *_matches to !rv if rv != -1.
The upshot of all of this is that '!' now works the way it should in
lists and some of the rules are more uniform and sensible.
1999-08-09 22:25:17 +00:00

1671 lines
44 KiB
C
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#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 1.13 1998/11/18 15:45:12 dm 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 "parse.yacc"
/*
* Copyright (c) 1996, 1998, 1999 Todd C. Miller <Todd.Miller@courtesan.com>
* All rights reserved.
*
* This code is derived from software contributed by Chris Jepeway
* <jepeway@cs.utk.edu>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* 4. Products derived from this software may not be called "Sudo" nor
* may "Sudo" appear in their names without specific prior written
* permission from the author.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
* AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
* THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/*
* XXX - the whole opFOO naming thing is somewhat bogus.
*
* XXX - the way things are stored for printmatches is stupid,
* they should be stored as elements in an array and then
* list_matches() can format things the way it wants.
*/
#include "config.h"
#include <stdio.h>
#ifdef STDC_HEADERS
#include <stdlib.h>
#endif /* STDC_HEADERS */
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif /* HAVE_UNISTD_H */
#include <pwd.h>
#include <sys/types.h>
#include <sys/param.h>
#ifdef HAVE_STRING_H
#include <string.h>
#endif /* HAVE_STRING_H */
#if defined(HAVE_MALLOC_H) && !defined(STDC_HEADERS)
#include <malloc.h>
#endif /* HAVE_MALLOC_H && !STDC_HEADERS */
#if defined(YYBISON) && defined(HAVE_ALLOCA_H) && !defined(__GNUC__)
#include <alloca.h>
#endif /* YYBISON && HAVE_ALLOCA_H && !__GNUC__ */
#ifdef HAVE_LSEARCH
#include <search.h>
#endif /* HAVE_LSEARCH */
#include "sudo.h"
#include "parse.h"
#ifndef HAVE_LSEARCH
#include "emul/search.h"
#endif /* HAVE_LSEARCH */
#ifndef HAVE_STRCASECMP
#define strcasecmp(a,b) strcmp(a,b)
#endif /* !HAVE_STRCASECMP */
#ifndef lint
static const char rcsid[] = "$Sudo$";
#endif /* lint */
/*
* Globals
*/
extern int sudolineno, parse_error;
int errorlineno = -1;
int clearaliases = 1;
int printmatches = FALSE;
/*
* Alias types
*/
#define HOST_ALIAS 1
#define CMND_ALIAS 2
#define USER_ALIAS 3
#define RUNAS_ALIAS 4
/*
* The matching stack, initial space allocated in init_parser().
*/
struct matchstack *match;
int top = 0, stacksize = 0;
#define push \
{ \
if (top >= stacksize) { \
while ((stacksize += STACKINCREMENT) < top); \
match = (struct matchstack *) erealloc(match, sizeof(struct matchstack) * stacksize); \
} \
match[top].user = -1; \
match[top].cmnd = -1; \
match[top].host = -1; \
match[top].runas = -1; \
match[top].nopass = -1; \
top++; \
}
#define pushcp \
{ \
if (top >= stacksize) { \
while ((stacksize += STACKINCREMENT) < top); \
match = (struct matchstack *) erealloc(match, sizeof(struct matchstack) * stacksize); \
} \
match[top].user = match[top-1].user; \
match[top].cmnd = match[top-1].cmnd; \
match[top].host = match[top-1].host; \
match[top].runas = match[top-1].runas; \
match[top].nopass = match[top-1].nopass; \
top++; \
}
#define pop \
{ \
if (top == 0) \
yyerror("matching stack underflow"); \
else \
top--; \
}
/*
* Shortcuts for append()
*/
#define append_cmnd(s, p) append(s, &cm_list[cm_list_len].cmnd, \
&cm_list[cm_list_len].cmnd_len, &cm_list[cm_list_len].cmnd_size, p)
#define append_runas(s, p) append(s, &cm_list[cm_list_len].runas, \
&cm_list[cm_list_len].runas_len, &cm_list[cm_list_len].runas_size, p)
#define append_entries(s, p) append(s, &ga_list[ga_list_len-1].entries, \
&ga_list[ga_list_len-1].entries_len, \
&ga_list[ga_list_len-1].entries_size, p)
/*
* The stack for printmatches. A list of allowed commands for the user.
*/
static struct command_match *cm_list = NULL;
static size_t cm_list_len = 0, cm_list_size = 0;
/*
* List of Cmnd_Aliases and expansions for `sudo -l'
*/
static int in_alias = FALSE;
static size_t ga_list_len = 0, ga_list_size = 0;
static struct generic_alias *ga_list = NULL;
/*
* Protoypes
*/
extern int command_matches __P((char *, char *, char *, char *));
extern int addr_matches __P((char *));
extern int netgr_matches __P((char *, char *, char *));
extern int usergr_matches __P((char *, char *));
static aliasinfo *find_alias __P((char *, int));
static int add_alias __P((char *, int, int));
static int more_aliases __P((void));
static void append __P((char *, char **, size_t *, size_t *, char *));
static void expand_ga_list __P((void));
static void expand_match_list __P((void));
void init_parser __P((void));
void yyerror __P((char *));
void
yyerror(s)
char *s;
{
/* Save the line the first error occured on. */
if (errorlineno == -1)
errorlineno = sudolineno ? sudolineno - 1 : 0;
#ifndef TRACELEXER
(void) fprintf(stderr, ">>> sudoers file: %s, line %d <<<\n", s,
sudolineno ? sudolineno - 1 : 0);
#else
(void) fprintf(stderr, "<*> ");
#endif
parse_error = TRUE;
}
#line 203 "parse.yacc"
typedef union {
char *string;
int BOOLEAN;
struct sudo_command command;
int tok;
} YYSTYPE;
#line 227 "sudo.tab.c"
#define ALIAS 257
#define NTWKADDR 258
#define FQHOST 259
#define NETGROUP 260
#define USERGROUP 261
#define NAME 262
#define ALL 263
#define RUNAS 264
#define NOPASSWD 265
#define PASSWD 266
#define COMMAND 267
#define COMMENT 268
#define HOSTALIAS 269
#define CMNDALIAS 270
#define USERALIAS 271
#define RUNASALIAS 272
#define ERROR 273
#define YYERRCODE 256
short yylhs[] = { -1,
0, 0, 5, 5, 7, 5, 5, 5, 5, 5,
8, 8, 13, 16, 16, 2, 2, 2, 2, 2,
2, 15, 15, 17, 20, 21, 20, 18, 18, 22,
22, 23, 24, 23, 3, 3, 3, 3, 3, 19,
19, 19, 1, 1, 1, 10, 10, 26, 25, 14,
14, 11, 11, 28, 27, 29, 29, 12, 12, 31,
30, 9, 9, 33, 32, 6, 6, 34, 34, 4,
4, 4, 4, 4,
};
short yylen[] = { 2,
1, 2, 1, 2, 0, 3, 2, 2, 2, 2,
1, 3, 3, 1, 2, 1, 1, 1, 1, 1,
1, 1, 3, 3, 1, 0, 3, 0, 2, 1,
3, 1, 0, 3, 1, 1, 1, 1, 1, 0,
1, 1, 1, 1, 1, 1, 3, 0, 4, 1,
3, 1, 3, 0, 4, 1, 3, 1, 3, 0,
4, 1, 3, 0, 4, 1, 3, 1, 2, 1,
1, 1, 1, 1,
};
short yydefred[] = { 0,
0, 3, 0, 0, 0, 0, 0, 1, 0, 4,
48, 0, 46, 54, 0, 52, 64, 0, 62, 60,
0, 58, 2, 73, 72, 71, 70, 74, 0, 68,
0, 66, 0, 0, 0, 0, 0, 0, 0, 0,
69, 21, 17, 20, 18, 19, 16, 0, 0, 14,
0, 11, 0, 50, 0, 47, 0, 53, 0, 63,
0, 59, 67, 15, 0, 0, 0, 0, 44, 43,
45, 26, 25, 56, 0, 0, 38, 37, 36, 35,
39, 33, 32, 0, 30, 12, 0, 0, 22, 0,
51, 0, 0, 0, 0, 0, 0, 41, 42, 0,
27, 57, 34, 31, 23, 24,
};
short yydgoto[] = { 7,
73, 50, 83, 30, 8, 31, 9, 51, 18, 12,
15, 21, 52, 53, 88, 54, 89, 90, 100, 74,
92, 84, 85, 94, 13, 33, 16, 35, 75, 22,
39, 19, 37, 32,
};
short yysindex[] = { -248,
-258, 0, -243, -242, -241, -227, -248, 0, -8, 0,
0, -17, 0, 0, -11, 0, 0, -10, 0, 0,
-9, 0, 0, 0, 0, 0, 0, 0, -224, 0,
170, 0, -19, -243, -7, -242, -6, -241, -5, -227,
0, 0, 0, 0, 0, 0, 0, -8, -231, 0,
-1, 0, -42, 0, 177, 0, -21, 0, -8, 0,
184, 0, 0, 0, 177, -214, 177, 9, 0, 0,
0, 0, 0, 0, 14, 16, 0, 0, 0, 0,
0, 0, 0, 17, 0, 0, 184, 19, 0, -259,
0, -254, -21, -217, 184, 17, -214, 0, 0, -21,
0, 0, 0, 0, 0, 0,
};
short yyrindex[] = { 192,
0, 0, 0, 0, 0, 0, 192, 0, 0, 0,
0, 86, 0, 0, 103, 0, 0, 120, 0, 0,
137, 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,
154, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, -33, 0, 1, 0, 0,
0, 0, 0, 0, 18, 35, 0, 0, 0, 0,
0, 0, 0, 52, 0, 0, 0, 69, 0, -16,
0, 0, 0, 0, 0, -28, -33, 0, 0, 0,
0, 0, 0, 0, 0, 0,
};
short yygindex[] = { 0,
-30, 15, -29, 37, 60, 11, 0, 0, 0, 0,
0, 0, 6, 20, 0, 5, -24, 0, 0, -89,
0, -13, -18, 0, 44, 0, 43, 0, 0, 40,
0, 45, 0, 33,
};
#define YYTABLESIZE 455
short yytable[] = { 28,
49, 67, 69, 102, 29, 98, 99, 1, 70, 10,
106, 72, 71, 11, 14, 17, 40, 55, 66, 2,
3, 4, 5, 6, 29, 42, 43, 44, 45, 20,
46, 47, 24, 49, 65, 25, 26, 27, 28, 77,
34, 55, 78, 79, 80, 81, 36, 38, 40, 87,
55, 61, 67, 57, 59, 61, 65, 93, 49, 48,
95, 101, 97, 64, 103, 41, 23, 65, 13, 76,
86, 91, 105, 96, 68, 55, 104, 56, 58, 62,
63, 0, 60, 0, 61, 8, 0, 0, 0, 0,
0, 0, 65, 0, 0, 0, 0, 0, 0, 0,
0, 13, 9, 0, 0, 0, 0, 0, 0, 61,
0, 0, 0, 0, 0, 0, 0, 0, 8, 7,
0, 0, 0, 0, 0, 0, 13, 0, 0, 0,
0, 0, 0, 0, 0, 9, 10, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 7, 6, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 10,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 6, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 49, 0, 0, 0, 0, 0, 0, 49,
0, 0, 0, 48, 0, 0, 82, 0, 0, 0,
0, 0, 0, 28, 5, 0, 0, 0, 29, 28,
0, 28, 28, 28, 29, 69, 29, 29, 29, 0,
40, 70, 0, 0, 0, 71, 40, 0, 24, 0,
40, 25, 26, 27, 28, 0, 49, 49, 0, 0,
49, 49, 49, 49, 0, 0, 0, 0, 49, 49,
49, 49, 49, 55, 55, 0, 0, 55, 55, 55,
55, 0, 0, 0, 0, 55, 55, 55, 55, 55,
65, 65, 0, 0, 65, 65, 65, 65, 0, 0,
0, 0, 65, 65, 65, 65, 65, 61, 61, 0,
0, 61, 61, 61, 61, 0, 0, 0, 0, 61,
61, 61, 61, 61, 13, 13, 0, 0, 13, 13,
13, 13, 0, 0, 0, 0, 13, 13, 13, 13,
13, 8, 8, 0, 0, 8, 8, 8, 8, 0,
0, 0, 0, 8, 8, 8, 8, 8, 9, 9,
0, 0, 9, 9, 9, 9, 0, 0, 0, 0,
9, 9, 9, 9, 9, 7, 7, 0, 0, 7,
7, 7, 7, 0, 0, 0, 0, 7, 7, 7,
7, 7, 10, 10, 0, 0, 10, 10, 10, 10,
0, 0, 0, 0, 10, 10, 10, 10, 10, 6,
6, 0, 0, 6, 6, 6, 6, 0, 0, 0,
0, 6, 6, 6, 6, 6, 42, 43, 44, 45,
0, 46, 47, 42, 43, 44, 45, 0, 46, 47,
77, 0, 0, 78, 79, 80, 81, 0, 5, 0,
0, 5, 5, 5, 5,
};
short yycheck[] = { 33,
0, 44, 257, 93, 33, 265, 266, 256, 263, 268,
100, 33, 267, 257, 257, 257, 33, 0, 61, 268,
269, 270, 271, 272, 33, 257, 258, 259, 260, 257,
262, 263, 257, 33, 0, 260, 261, 262, 263, 257,
58, 61, 260, 261, 262, 263, 58, 58, 58, 264,
33, 0, 44, 61, 61, 61, 58, 44, 58, 44,
44, 92, 44, 49, 94, 29, 7, 33, 0, 59,
65, 67, 97, 87, 55, 58, 95, 34, 36, 40,
48, -1, 38, -1, 33, 0, -1, -1, -1, -1,
-1, -1, 58, -1, -1, -1, -1, -1, -1, -1,
-1, 33, 0, -1, -1, -1, -1, -1, -1, 58,
-1, -1, -1, -1, -1, -1, -1, -1, 33, 0,
-1, -1, -1, -1, -1, -1, 58, -1, -1, -1,
-1, -1, -1, -1, -1, 33, 0, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, 33, 0, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, 33,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, 33, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, 33, -1, -1, -1, -1, -1, -1, 33,
-1, -1, -1, 44, -1, -1, 33, -1, -1, -1,
-1, -1, -1, 257, 33, -1, -1, -1, 257, 263,
-1, 265, 266, 267, 263, 257, 265, 266, 267, -1,
257, 263, -1, -1, -1, 267, 263, -1, 257, -1,
267, 260, 261, 262, 263, -1, 256, 257, -1, -1,
260, 261, 262, 263, -1, -1, -1, -1, 268, 269,
270, 271, 272, 256, 257, -1, -1, 260, 261, 262,
263, -1, -1, -1, -1, 268, 269, 270, 271, 272,
256, 257, -1, -1, 260, 261, 262, 263, -1, -1,
-1, -1, 268, 269, 270, 271, 272, 256, 257, -1,
-1, 260, 261, 262, 263, -1, -1, -1, -1, 268,
269, 270, 271, 272, 256, 257, -1, -1, 260, 261,
262, 263, -1, -1, -1, -1, 268, 269, 270, 271,
272, 256, 257, -1, -1, 260, 261, 262, 263, -1,
-1, -1, -1, 268, 269, 270, 271, 272, 256, 257,
-1, -1, 260, 261, 262, 263, -1, -1, -1, -1,
268, 269, 270, 271, 272, 256, 257, -1, -1, 260,
261, 262, 263, -1, -1, -1, -1, 268, 269, 270,
271, 272, 256, 257, -1, -1, 260, 261, 262, 263,
-1, -1, -1, -1, 268, 269, 270, 271, 272, 256,
257, -1, -1, 260, 261, 262, 263, -1, -1, -1,
-1, 268, 269, 270, 271, 272, 257, 258, 259, 260,
-1, 262, 263, 257, 258, 259, 260, -1, 262, 263,
257, -1, -1, 260, 261, 262, 263, -1, 257, -1,
-1, 260, 261, 262, 263,
};
#define YYFINAL 7
#ifndef YYDEBUG
#define YYDEBUG 0
#endif
#define YYMAXTOKEN 273
#if YYDEBUG
char *yyname[] = {
"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,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,"ALIAS",
"NTWKADDR","FQHOST","NETGROUP","USERGROUP","NAME","ALL","RUNAS","NOPASSWD",
"PASSWD","COMMAND","COMMENT","HOSTALIAS","CMNDALIAS","USERALIAS","RUNASALIAS",
"ERROR",
};
char *yyrule[] = {
"$accept : file",
"file : entry",
"file : file entry",
"entry : COMMENT",
"entry : error COMMENT",
"$$1 :",
"entry : $$1 userlist privileges",
"entry : USERALIAS useraliases",
"entry : HOSTALIAS hostaliases",
"entry : CMNDALIAS cmndaliases",
"entry : RUNASALIAS runasaliases",
"privileges : privilege",
"privileges : privileges ':' privilege",
"privilege : hostlist '=' cmndspeclist",
"ophostspec : hostspec",
"ophostspec : '!' hostspec",
"hostspec : ALL",
"hostspec : NTWKADDR",
"hostspec : NETGROUP",
"hostspec : NAME",
"hostspec : FQHOST",
"hostspec : ALIAS",
"cmndspeclist : cmndspec",
"cmndspeclist : cmndspeclist ',' cmndspec",
"cmndspec : runasspec nopasswd opcmnd",
"opcmnd : cmnd",
"$$2 :",
"opcmnd : '!' $$2 cmnd",
"runasspec :",
"runasspec : RUNAS runaslist",
"runaslist : oprunasuser",
"runaslist : runaslist ',' oprunasuser",
"oprunasuser : runasuser",
"$$3 :",
"oprunasuser : '!' $$3 runasuser",
"runasuser : NAME",
"runasuser : USERGROUP",
"runasuser : NETGROUP",
"runasuser : ALIAS",
"runasuser : ALL",
"nopasswd :",
"nopasswd : NOPASSWD",
"nopasswd : PASSWD",
"cmnd : ALL",
"cmnd : ALIAS",
"cmnd : COMMAND",
"hostaliases : hostalias",
"hostaliases : hostaliases ':' hostalias",
"$$4 :",
"hostalias : ALIAS $$4 '=' hostlist",
"hostlist : ophostspec",
"hostlist : hostlist ',' ophostspec",
"cmndaliases : cmndalias",
"cmndaliases : cmndaliases ':' cmndalias",
"$$5 :",
"cmndalias : ALIAS $$5 '=' cmndlist",
"cmndlist : opcmnd",
"cmndlist : cmndlist ',' opcmnd",
"runasaliases : runasalias",
"runasaliases : runasaliases ':' runasalias",
"$$6 :",
"runasalias : ALIAS $$6 '=' runaslist",
"useraliases : useralias",
"useraliases : useraliases ':' useralias",
"$$7 :",
"useralias : ALIAS $$7 '=' userlist",
"userlist : opuser",
"userlist : userlist ',' opuser",
"opuser : user",
"opuser : '!' user",
"user : NAME",
"user : USERGROUP",
"user : NETGROUP",
"user : ALIAS",
"user : ALL",
};
#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
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 719 "parse.yacc"
#define MOREALIASES (32)
aliasinfo *aliases = NULL;
size_t naliases = 0;
size_t nslots = 0;
/*
* Compare two aliasinfo structures, strcmp() style.
* Note that we do *not* compare their values.
*/
static int
aliascmp(a1, a2)
const VOID *a1, *a2;
{
int r;
aliasinfo *ai1, *ai2;
ai1 = (aliasinfo *) a1;
ai2 = (aliasinfo *) a2;
r = strcmp(ai1->name, ai2->name);
if (r == 0)
r = ai1->type - ai2->type;
return(r);
}
/*
* Compare two generic_alias structures, strcmp() style.
*/
static int
genaliascmp(entry, key)
const VOID *entry, *key;
{
struct generic_alias *ga1 = (struct generic_alias *) key;
struct generic_alias *ga2 = (struct generic_alias *) entry;
return(strcmp(ga1->alias, ga2->alias));
}
/*
* Adds the named alias of the specified type to the aliases list.
*/
static int
add_alias(alias, type, val)
char *alias;
int type;
int val;
{
aliasinfo ai, *aip;
size_t onaliases;
char s[512];
if (naliases >= nslots && !more_aliases()) {
(void) snprintf(s, sizeof(s), "Out of memory defining alias `%s'",
alias);
yyerror(s);
return(FALSE);
}
ai.type = type;
ai.val = val;
ai.name = estrdup(alias);
onaliases = naliases;
aip = (aliasinfo *) lsearch((VOID *)&ai, (VOID *)aliases, &naliases,
sizeof(ai), aliascmp);
if (aip == NULL) {
(void) snprintf(s, sizeof(s), "Aliases corrupted defining alias `%s'",
alias);
yyerror(s);
return(FALSE);
}
if (onaliases == naliases) {
(void) snprintf(s, sizeof(s), "Alias `%s' already defined", alias);
yyerror(s);
return(FALSE);
}
return(TRUE);
}
/*
* Searches for the named alias of the specified type.
*/
static aliasinfo *
find_alias(alias, type)
char *alias;
int type;
{
aliasinfo ai;
ai.name = alias;
ai.type = type;
return((aliasinfo *) lfind((VOID *)&ai, (VOID *)aliases, &naliases,
sizeof(ai), aliascmp));
}
/*
* Allocates more space for the aliases list.
*/
static int
more_aliases()
{
nslots += MOREALIASES;
if (nslots == MOREALIASES)
aliases = (aliasinfo *) malloc(nslots * sizeof(aliasinfo));
else
aliases = (aliasinfo *) realloc(aliases, nslots * sizeof(aliasinfo));
return(aliases != NULL);
}
/*
* Lists the contents of the aliases list.
*/
void
dumpaliases()
{
size_t n;
for (n = 0; n < naliases; n++) {
switch (aliases[n].type) {
case HOST_ALIAS:
(void) puts("HOST_ALIAS");
break;
case CMND_ALIAS:
(void) puts("CMND_ALIAS");
break;
case USER_ALIAS:
(void) puts("USER_ALIAS");
break;
case RUNAS_ALIAS:
(void) puts("RUNAS_ALIAS");
break;
}
(void) printf("\t%s: %d\n", aliases[n].name, aliases[n].val);
}
}
/*
* Lists the contents of cm_list and ga_list for `sudo -l'.
*/
void
list_matches()
{
int i;
char *p;
struct generic_alias *ga, key;
(void) puts("You may run the following commands on this host:");
for (i = 0; i < cm_list_len; i++) {
/* Print the runas list. */
(void) fputs(" ", stdout);
if (cm_list[i].runas) {
(void) putchar('(');
p = strtok(cm_list[i].runas, ", ");
do {
if (p != cm_list[i].runas)
(void) fputs(", ", stdout);
key.alias = p;
if ((ga = (struct generic_alias *) lfind((VOID *) &key,
(VOID *) &ga_list[0], &ga_list_len, sizeof(key), genaliascmp)))
(void) fputs(ga->entries, stdout);
else
(void) fputs(p, stdout);
} while ((p = strtok(NULL, ", ")));
(void) fputs(") ", stdout);
} else {
(void) printf("(%s) ", RUNAS_DEFAULT);
}
/* Is a password required? */
if (cm_list[i].nopasswd == TRUE)
(void) fputs("NOPASSWD: ", stdout);
/* Print the actual command or expanded Cmnd_Alias. */
key.alias = cm_list[i].cmnd;
if ((ga = (struct generic_alias *) lfind((VOID *) &key,
(VOID *) &ga_list[0], &ga_list_len, sizeof(key), genaliascmp)))
(void) puts(ga->entries);
else
(void) puts(cm_list[i].cmnd);
}
/* Be nice and free up space now that we are done. */
for (i = 0; i < ga_list_len; i++) {
free(ga_list[i].alias);
free(ga_list[i].entries);
}
free(ga_list);
ga_list = NULL;
for (i = 0; i < cm_list_len; i++) {
free(cm_list[i].runas);
free(cm_list[i].cmnd);
}
free(cm_list);
cm_list = NULL;
cm_list_len = 0;
cm_list_size = 0;
}
/*
* Appends a source string to the destination, optionally prefixing a separator.
*/
static void
append(src, dstp, dst_len, dst_size, separator)
char *src, **dstp;
size_t *dst_len, *dst_size;
char *separator;
{
size_t src_len = strlen(src);
char *dst = *dstp;
/*
* Only add the separator if there is something to separate from.
* If the last char is a '!', don't apply the separator (XXX).
*/
if (separator && dst && dst[*dst_len - 1] != '!')
src_len += strlen(separator);
else
separator = NULL;
/* Assumes dst will be NULL if not set. */
if (dst == NULL) {
dst = (char *) emalloc(BUFSIZ);
*dst_size = BUFSIZ;
*dst_len = 0;
*dstp = dst;
}
/* Allocate more space if necessary. */
if (*dst_size <= *dst_len + src_len) {
while (*dst_size <= *dst_len + src_len)
*dst_size += BUFSIZ;
dst = (char *) erealloc(dst, *dst_size);
*dstp = dst;
}
/* Copy src -> dst adding a separator if appropriate and adjust len. */
dst += *dst_len;
*dst_len += src_len;
*dst = '\0';
if (separator)
(void) strcat(dst, separator);
(void) strcat(dst, src);
}
/*
* Frees up space used by the aliases list and resets the associated counters.
*/
void
reset_aliases()
{
size_t n;
if (aliases) {
for (n = 0; n < naliases; n++)
free(aliases[n].name);
free(aliases);
aliases = NULL;
}
naliases = nslots = 0;
}
/*
* Increments ga_list_len, allocating more space as necessary.
*/
static void
expand_ga_list()
{
if (++ga_list_len >= ga_list_size) {
while ((ga_list_size += STACKINCREMENT) < ga_list_len)
;
ga_list = (struct generic_alias *)
erealloc(ga_list, sizeof(struct generic_alias) * ga_list_size);
}
ga_list[ga_list_len - 1].entries = NULL;
}
/*
* Increments cm_list_len, allocating more space as necessary.
*/
static void
expand_match_list()
{
if (++cm_list_len >= cm_list_size) {
while ((cm_list_size += STACKINCREMENT) < cm_list_len)
;
if (cm_list == NULL)
cm_list_len = 0; /* start at 0 since it is a subscript */
cm_list = (struct command_match *)
erealloc(cm_list, sizeof(struct command_match) * cm_list_size);
}
cm_list[cm_list_len].runas = cm_list[cm_list_len].cmnd = NULL;
cm_list[cm_list_len].nopasswd = FALSE;
}
/*
* Frees up spaced used by a previous parser run and allocates new space
* for various data structures.
*/
void
init_parser()
{
/* Free up old data structures if we run the parser more than once. */
if (match) {
free(match);
match = NULL;
top = 0;
parse_error = FALSE;
errorlineno = -1;
sudolineno = 1;
}
/* Allocate space for the matching stack. */
stacksize = STACKINCREMENT;
match = (struct matchstack *) emalloc(sizeof(struct matchstack) * stacksize);
/* Allocate space for the match list (for `sudo -l'). */
if (printmatches == TRUE)
expand_match_list();
}
#line 873 "sudo.tab.c"
/* allocate initial stack or double stack size, up to YYMAXDEPTH */
#if defined(__cplusplus) || __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;
newss = yyss ? (short *)realloc(yyss, newsize * sizeof *newss) :
(short *)malloc(newsize * sizeof *newss);
if (newss == NULL)
return -1;
yyss = newss;
yyssp = newss + i;
newvs = yyvs ? (YYSTYPE *)realloc(yyvs, newsize * sizeof *newvs) :
(YYSTYPE *)malloc(newsize * sizeof *newvs);
if (newvs == NULL)
return -1;
yyvs = newvs;
yyvsp = newvs + i;
yystacksize = newsize;
yysslim = yyss + newsize - 1;
return 0;
}
#define YYABORT goto yyabort
#define YYREJECT goto yyabort
#define YYACCEPT goto yyaccept
#define YYERROR goto yyerrlab
int
#if defined(__cplusplus) || __STDC__
yyparse(void)
#else
yyparse()
#endif
{
register int yym, yyn, yystate;
#if YYDEBUG
register char *yys;
if ((yys = getenv("YYDEBUG")))
{
yyn = *yys;
if (yyn >= '0' && yyn <= '9')
yydebug = yyn - '0';
}
#endif
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 3:
#line 250 "parse.yacc"
{ ; }
break;
case 4:
#line 252 "parse.yacc"
{ yyerrok; }
break;
case 5:
#line 253 "parse.yacc"
{ push; }
break;
case 6:
#line 253 "parse.yacc"
{
while (top && user_matches != TRUE)
pop;
}
break;
case 7:
#line 258 "parse.yacc"
{ ; }
break;
case 8:
#line 260 "parse.yacc"
{ ; }
break;
case 9:
#line 262 "parse.yacc"
{ ; }
break;
case 10:
#line 264 "parse.yacc"
{ ; }
break;
case 13:
#line 272 "parse.yacc"
{
/*
* We already did a push if necessary in
* cmndspec so just reset some values so
* the next 'privilege' gets a clean slate.
*/
host_matches = -1;
runas_matches = -1;
no_passwd = -1;
}
break;
case 14:
#line 284 "parse.yacc"
{
if (yyvsp[0].BOOLEAN != -1)
host_matches = yyvsp[0].BOOLEAN;
}
break;
case 15:
#line 288 "parse.yacc"
{
if (yyvsp[0].BOOLEAN != -1)
host_matches = !yyvsp[0].BOOLEAN;
}
break;
case 16:
#line 293 "parse.yacc"
{
yyval.BOOLEAN = TRUE;
free(yyvsp[0].string);
}
break;
case 17:
#line 297 "parse.yacc"
{
if (addr_matches(yyvsp[0].string))
yyval.BOOLEAN = TRUE;
else
yyval.BOOLEAN = -1;
free(yyvsp[0].string);
}
break;
case 18:
#line 304 "parse.yacc"
{
if (netgr_matches(yyvsp[0].string, user_host, NULL))
yyval.BOOLEAN = TRUE;
else
yyval.BOOLEAN = -1;
free(yyvsp[0].string);
}
break;
case 19:
#line 311 "parse.yacc"
{
if (strcasecmp(user_shost, yyvsp[0].string) == 0)
yyval.BOOLEAN = TRUE;
else
yyval.BOOLEAN = -1;
free(yyvsp[0].string);
}
break;
case 20:
#line 318 "parse.yacc"
{
if (strcasecmp(user_host, yyvsp[0].string) == 0)
yyval.BOOLEAN = TRUE;
else
yyval.BOOLEAN = -1;
free(yyvsp[0].string);
}
break;
case 21:
#line 325 "parse.yacc"
{
aliasinfo *aip = find_alias(yyvsp[0].string, HOST_ALIAS);
/* could be an all-caps hostname */
if (aip)
yyval.BOOLEAN = aip->val;
else if (strcasecmp(user_shost, yyvsp[0].string) == 0)
yyval.BOOLEAN = TRUE;
else
yyval.BOOLEAN = -1;
free(yyvsp[0].string);
}
break;
case 24:
#line 343 "parse.yacc"
{
/*
* Push the entry onto the stack if it is worth
* saving (or if nothing else is on the stack)
* and clear match status.
*/
if (user_matches == TRUE && host_matches == TRUE &&
((cmnd_matches != -1 && runas_matches != -1) ||
top == 1))
pushcp;
cmnd_matches = -1;
}
break;
case 25:
#line 357 "parse.yacc"
{
if (yyvsp[0].BOOLEAN != -1)
cmnd_matches = yyvsp[0].BOOLEAN;
}
break;
case 26:
#line 361 "parse.yacc"
{
if (printmatches == TRUE) {
if (in_alias == TRUE)
append_entries("!", ", ");
else if (host_matches == TRUE &&
user_matches == TRUE)
append_cmnd("!", NULL);
}
}
break;
case 27:
#line 369 "parse.yacc"
{
if (yyvsp[0].BOOLEAN != -1)
cmnd_matches = !yyvsp[0].BOOLEAN;
}
break;
case 28:
#line 375 "parse.yacc"
{
if (printmatches == TRUE && host_matches == TRUE &&
user_matches == TRUE) {
if (runas_matches == -1) {
cm_list[cm_list_len].runas_len = 0;
} else {
/* Inherit runas data. */
cm_list[cm_list_len].runas =
estrdup(cm_list[cm_list_len-1].runas);
cm_list[cm_list_len].runas_len =
cm_list[cm_list_len-1].runas_len;
cm_list[cm_list_len].runas_size =
cm_list[cm_list_len-1].runas_size;
}
}
/*
* If this is the first entry in a command list
* then check against RUNAS_DEFAULT.
*/
if (runas_matches == -1)
runas_matches =
(strcmp(RUNAS_DEFAULT, user_runas) == 0);
}
break;
case 29:
#line 398 "parse.yacc"
{ ; }
break;
case 32:
#line 405 "parse.yacc"
{
if (yyvsp[0].BOOLEAN != -1)
runas_matches = yyvsp[0].BOOLEAN;
}
break;
case 33:
#line 409 "parse.yacc"
{
if (printmatches == TRUE) {
if (in_alias == TRUE)
append_entries("!", ", ");
else if (host_matches == TRUE &&
user_matches == TRUE)
append_runas("!", ", ");
}
}
break;
case 34:
#line 417 "parse.yacc"
{
if (yyvsp[0].BOOLEAN != -1)
runas_matches = !yyvsp[0].BOOLEAN;
}
break;
case 35:
#line 422 "parse.yacc"
{
if (printmatches == TRUE) {
if (in_alias == TRUE)
append_entries(yyvsp[0].string, ", ");
else if (host_matches == TRUE &&
user_matches == TRUE)
append_runas(yyvsp[0].string, ", ");
}
if (strcmp(yyvsp[0].string, user_runas) == 0)
yyval.BOOLEAN = TRUE;
else
yyval.BOOLEAN = -1;
free(yyvsp[0].string);
}
break;
case 36:
#line 436 "parse.yacc"
{
if (printmatches == TRUE) {
if (in_alias == TRUE)
append_entries(yyvsp[0].string, ", ");
else if (host_matches == TRUE &&
user_matches == TRUE)
append_runas(yyvsp[0].string, ", ");
}
if (usergr_matches(yyvsp[0].string, user_runas))
yyval.BOOLEAN = TRUE;
else
yyval.BOOLEAN = -1;
free(yyvsp[0].string);
}
break;
case 37:
#line 450 "parse.yacc"
{
if (printmatches == TRUE) {
if (in_alias == TRUE)
append_entries(yyvsp[0].string, ", ");
else if (host_matches == TRUE &&
user_matches == TRUE)
append_runas(yyvsp[0].string, ", ");
}
if (netgr_matches(yyvsp[0].string, NULL, user_runas))
yyval.BOOLEAN = TRUE;
else
yyval.BOOLEAN = -1;
free(yyvsp[0].string);
}
break;
case 38:
#line 464 "parse.yacc"
{
aliasinfo *aip = find_alias(yyvsp[0].string, RUNAS_ALIAS);
if (printmatches == TRUE) {
if (in_alias == TRUE)
append_entries(yyvsp[0].string, ", ");
else if (host_matches == TRUE &&
user_matches == TRUE)
append_runas(yyvsp[0].string, ", ");
}
/* could be an all-caps username */
if (aip)
yyval.BOOLEAN = aip->val;
else if (strcmp(yyvsp[0].string, user_runas) == 0)
yyval.BOOLEAN = TRUE;
else
yyval.BOOLEAN = -1;
free(yyvsp[0].string);
}
break;
case 39:
#line 483 "parse.yacc"
{
if (printmatches == TRUE) {
if (in_alias == TRUE)
append_entries(yyvsp[0].string, ", ");
else if (host_matches == TRUE &&
user_matches == TRUE)
append_runas(yyvsp[0].string, ", ");
}
yyval.BOOLEAN = TRUE;
free(yyvsp[0].string);
}
break;
case 40:
#line 496 "parse.yacc"
{
/* Inherit NOPASSWD/PASSWD status. */
if (printmatches == TRUE && host_matches == TRUE &&
user_matches == TRUE) {
if (no_passwd == TRUE)
cm_list[cm_list_len].nopasswd = TRUE;
else
cm_list[cm_list_len].nopasswd = FALSE;
}
}
break;
case 41:
#line 506 "parse.yacc"
{
no_passwd = TRUE;
if (printmatches == TRUE && host_matches == TRUE &&
user_matches == TRUE)
cm_list[cm_list_len].nopasswd = TRUE;
}
break;
case 42:
#line 512 "parse.yacc"
{
no_passwd = FALSE;
if (printmatches == TRUE && host_matches == TRUE &&
user_matches == TRUE)
cm_list[cm_list_len].nopasswd = FALSE;
}
break;
case 43:
#line 520 "parse.yacc"
{
if (printmatches == TRUE) {
if (in_alias == TRUE)
append_entries(yyvsp[0].string, ", ");
else if (host_matches == TRUE &&
user_matches == TRUE) {
append_cmnd(yyvsp[0].string, NULL);
expand_match_list();
}
}
yyval.BOOLEAN = TRUE;
free(yyvsp[0].string);
if (safe_cmnd)
free(safe_cmnd);
safe_cmnd = estrdup(user_cmnd);
}
break;
case 44:
#line 538 "parse.yacc"
{
aliasinfo *aip;
if (printmatches == TRUE) {
if (in_alias == TRUE)
append_entries(yyvsp[0].string, ", ");
else if (host_matches == TRUE &&
user_matches == TRUE) {
append_cmnd(yyvsp[0].string, NULL);
expand_match_list();
}
}
if ((aip = find_alias(yyvsp[0].string, CMND_ALIAS)))
yyval.BOOLEAN = aip->val;
else
yyval.BOOLEAN = -1;
free(yyvsp[0].string);
}
break;
case 45:
#line 557 "parse.yacc"
{
if (printmatches == TRUE) {
if (in_alias == TRUE) {
append_entries(yyvsp[0].command.cmnd, ", ");
if (yyvsp[0].command.args)
append_entries(yyvsp[0].command.args, " ");
}
if (host_matches == TRUE &&
user_matches == TRUE) {
append_cmnd(yyvsp[0].command.cmnd, NULL);
if (yyvsp[0].command.args)
append_cmnd(yyvsp[0].command.args, " ");
expand_match_list();
}
}
if (command_matches(user_cmnd, user_args,
yyvsp[0].command.cmnd, yyvsp[0].command.args))
yyval.BOOLEAN = TRUE;
else
yyval.BOOLEAN = -1;
free(yyvsp[0].command.cmnd);
if (yyvsp[0].command.args)
free(yyvsp[0].command.args);
}
break;
case 48:
#line 589 "parse.yacc"
{ push; }
break;
case 49:
#line 589 "parse.yacc"
{
if (host_matches != -1 &&
!add_alias(yyvsp[-3].string, HOST_ALIAS, host_matches))
YYERROR;
pop;
}
break;
case 54:
#line 605 "parse.yacc"
{
push;
if (printmatches == TRUE) {
in_alias = TRUE;
/* Allocate space for ga_list if necessary. */
expand_ga_list();
ga_list[ga_list_len-1].alias = estrdup(yyvsp[0].string);
}
}
break;
case 55:
#line 613 "parse.yacc"
{
if (cmnd_matches != -1 &&
!add_alias(yyvsp[-3].string, CMND_ALIAS, cmnd_matches))
YYERROR;
pop;
free(yyvsp[-3].string);
if (printmatches == TRUE)
in_alias = FALSE;
}
break;
case 56:
#line 625 "parse.yacc"
{ ; }
break;
case 60:
#line 633 "parse.yacc"
{
push;
if (printmatches == TRUE) {
in_alias = TRUE;
/* Allocate space for ga_list if necessary. */
expand_ga_list();
ga_list[ga_list_len-1].alias = estrdup(yyvsp[0].string);
}
}
break;
case 61:
#line 641 "parse.yacc"
{
if (runas_matches != -1 &&
!add_alias(yyvsp[-3].string, RUNAS_ALIAS, runas_matches))
YYERROR;
pop;
free(yyvsp[-3].string);
if (printmatches == TRUE)
in_alias = FALSE;
}
break;
case 64:
#line 657 "parse.yacc"
{ push; }
break;
case 65:
#line 657 "parse.yacc"
{
if (user_matches != -1 &&
!add_alias(yyvsp[-3].string, USER_ALIAS, user_matches))
YYERROR;
pop;
free(yyvsp[-3].string);
}
break;
case 66:
#line 666 "parse.yacc"
{ ; }
break;
case 68:
#line 670 "parse.yacc"
{
if (yyvsp[0].BOOLEAN != -1)
user_matches = yyvsp[0].BOOLEAN;
}
break;
case 69:
#line 674 "parse.yacc"
{
if (yyvsp[0].BOOLEAN != -1)
user_matches = !yyvsp[0].BOOLEAN;
}
break;
case 70:
#line 679 "parse.yacc"
{
if (strcmp(yyvsp[0].string, user_name) == 0)
yyval.BOOLEAN = TRUE;
else
yyval.BOOLEAN = -1;
free(yyvsp[0].string);
}
break;
case 71:
#line 686 "parse.yacc"
{
if (usergr_matches(yyvsp[0].string, user_name))
yyval.BOOLEAN = TRUE;
else
yyval.BOOLEAN = -1;
free(yyvsp[0].string);
}
break;
case 72:
#line 693 "parse.yacc"
{
if (netgr_matches(yyvsp[0].string, NULL, user_name))
yyval.BOOLEAN = TRUE;
else
yyval.BOOLEAN = -1;
free(yyvsp[0].string);
}
break;
case 73:
#line 700 "parse.yacc"
{
aliasinfo *aip = find_alias(yyvsp[0].string, USER_ALIAS);
/* could be an all-caps username */
if (aip)
yyval.BOOLEAN = aip->val;
else if (strcmp(yyvsp[0].string, user_name) == 0)
yyval.BOOLEAN = TRUE;
else
yyval.BOOLEAN = -1;
free(yyvsp[0].string);
}
break;
case 74:
#line 712 "parse.yacc"
{
yyval.BOOLEAN = TRUE;
free(yyvsp[0].string);
}
break;
#line 1615 "sudo.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:
return (1);
yyaccept:
return (0);
}
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