Head

GCC Code Coverage Report
Directory:	./		Exec	Total	Coverage
File:	usr.sbin/dvmrpd/parse.c	Lines:	0	203	0.0 %
Date:	2017-11-07	Branches:	0	174	0.0 %

#include <stdlib.h>
#include <string.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 25 "parse.y"
#include <sys/types.h>
#include <sys/time.h>
#include <sys/stat.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <net/if.h>
#include <ctype.h>
#include <err.h>
#include <limits.h>
#include <unistd.h>
#include <errno.h>
#include <stdarg.h>
#include <stdio.h>
#include <string.h>
#include <syslog.h>

#include "igmp.h"
#include "dvmrp.h"
#include "dvmrpd.h"
#include "dvmrpe.h"
#include "log.h"

TAILQ_HEAD(files, file)		 files = TAILQ_HEAD_INITIALIZER(files);
static struct file {
	TAILQ_ENTRY(file)	 entry;
	FILE			*stream;
	char			*name;
	int			 lineno;
	int			 errors;
} *file, *topfile;
struct file	*pushfile(const char *, int);
int		 popfile(void);
int		 check_file_secrecy(int, const char *);
int		 yyparse(void);
int		 yylex(void);
int		 yyerror(const char *, ...)
    __attribute__((__format__ (printf, 1, 2)))
    __attribute__((__nonnull__ (1)));
int		 kw_cmp(const void *, const void *);
int		 lookup(char *);
int		 lgetc(int);
int		 lungetc(int);
int		 findeol(void);

TAILQ_HEAD(symhead, sym)	 symhead = TAILQ_HEAD_INITIALIZER(symhead);
struct sym {
	TAILQ_ENTRY(sym)	 entry;
	int			 used;
	int			 persist;
	char			*nam;
	char			*val;
};
int		 symset(const char *, const char *, int);
char		*symget(const char *);

static struct dvmrpd_conf	*conf;
char				*start_state;
struct iface			*iface = NULL;

static struct {
	u_int32_t	 probe_interval;
	u_int32_t	 query_interval;
	u_int32_t	 query_resp_interval;
	u_int32_t	 startup_query_interval;
	u_int32_t	 startup_query_cnt;
	u_int32_t	 last_member_query_interval;
	u_int32_t	 last_member_query_cnt;
	u_int32_t	 dead_interval;
	u_int16_t	 metric;
	u_int8_t	 robustness;
	u_int8_t	 igmp_version;
} *defs, *grdefs, globaldefs, groupdefs, ifacedefs;

void		 clear_config(struct dvmrpd_conf *xconf);
struct iface	*conf_get_if(struct kif *);
struct iface	*new_group(void);

typedef struct {
	union {
		int64_t		 number;
		char		*string;
	} v;
	int lineno;
} YYSTYPE;

#line 100 "parse.c"
#define INTERFACE 257
#define FIBUPDATE 258
#define GROUP 259
#define METRIC 260
#define PASSIVE 261
#define ROBUSTNESS 262
#define QUERYINTERVAL 263
#define QUERYRESPINTERVAL 264
#define STARTUPQUERYINTERVAL 265
#define STARTUPQUERYCNT 266
#define LASTMEMBERQUERYINTERVAL 267
#define LASTMEMBERQUERYCNT 268
#define IGMPVERSION 269
#define ERROR 270
#define STRING 271
#define NUMBER 272
#define YYERRCODE 256
const short yylhs[] =
	{                                        -1,
    0,    0,    0,    0,    0,    0,    0,    2,    2,    1,
    4,    3,    3,    7,    7,    7,    7,    7,    7,    7,
    7,    7,    8,    8,    9,   11,    5,   10,   10,   10,
   12,   12,   13,   13,   15,    6,   14,   14,   16,   16,
   16,
};
const short yylen[] =
	{                                         2,
    0,    2,    3,    3,    3,    3,    3,    2,    1,    1,
    3,    2,    1,    2,    2,    2,    2,    2,    2,    2,
    2,    2,    2,    0,    2,    0,    4,    4,    3,    0,
    2,    1,    2,    2,    0,    7,    2,    1,    2,    2,
    2,
};
const short yydefred[] =
	{                                      1,
    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
    0,    0,    0,    0,    0,    2,    0,    0,    0,    0,
   13,    7,   26,   10,   12,    0,    0,   16,   19,   17,
   18,   21,   20,   15,   14,   22,    0,    3,    4,    5,
    6,    0,   23,    0,    9,    0,    0,   27,   35,    8,
    0,    0,    0,   29,    0,    0,   32,    0,    0,    0,
    0,   38,    0,   33,   34,   28,   31,   41,   39,   40,
   36,   37,   25,
};
const short yydgoto[] =
	{                                       1,
   25,   46,   17,   18,   59,   20,   55,   27,   64,   48,
   42,   56,   57,   61,   52,   62,
};
const short yysindex[] =
	{                                      0,
  -10,   -4, -261, -260,    2, -259, -258, -257, -256, -254,
 -253, -252, -251, -250,  -37,    0,   15,   17,   18,   19,
    0,    0,    0,    0,    0,    2,  -93,    0,    0,    0,
    0,    0,    0,    0,    0,    0, -239,    0,    0,    0,
    0,  -90,    0,    2,    0, -237,    2,    0,    0,    0,
  -84, -197,   25,    0,   25,  -74,    0,   25,   25,   25,
  -94,    0,    2,    0,    0,    0,    0,    0,    0,    0,
    0,    0,    0,};
const short yyrindex[] =
	{                                      0,
    0,    0,    0,    0,  -87,    0,    0,    0,    0,    0,
    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
    0,    0,    0,    0,    0, -122,    0,    0,    0,    0,
    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
    0,   27,    0, -183,    0,   28,  -64,    0,    0,    0,
    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
    0,    0, -108,    0,    0,    0,    0,    0,    0,    0,
    0,    0,    0,};
const short yygindex[] =
	{                                      0,
    0,    0,    0,    0,   38,    0,    1,  -21,  -51,    0,
    0,    0,  -16,    0,    0,  -18,
};
#define YYTABLESIZE 261
const short yytable[] =
	{                                      16,
   24,   21,   24,   65,   43,   22,   68,   69,   70,   23,
   24,   26,   28,   29,   30,   31,   24,   32,   33,   34,
   35,   36,   49,   37,   38,   51,   39,   40,   41,   44,
   71,   45,   47,   50,   63,   24,   30,   11,   19,   67,
   54,   73,   72,    0,    0,    0,    0,    0,    0,    0,
   66,    0,   60,    0,    0,    0,    0,    0,   58,    3,
   24,   60,    6,    0,    7,    8,    9,   10,   11,   12,
   13,   14,   24,   24,    0,    0,   24,    0,   24,   24,
   24,   24,   24,   24,   24,   24,    0,    0,    0,    0,
    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
    0,    0,    0,   24,   24,    0,    0,   24,   24,   24,
   24,   24,   24,   24,   24,   24,   24,   24,   24,    0,
    0,   24,   24,   24,   24,   24,   24,   24,   24,   24,
   24,   58,    3,    0,    0,    6,    0,    7,    8,    9,
   10,   11,   12,   13,   14,    6,   53,    7,    8,    9,
   10,   11,   12,   13,   14,    6,   53,    7,    8,    9,
   10,   11,   12,   13,   14,   24,   24,   24,   24,   24,
   24,   24,   24,   24,   24,    0,    0,    0,    0,    0,
    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
    0,    0,    0,    0,    0,    2,    3,    4,    5,    6,
    0,    7,    8,    9,   10,   11,   12,   13,   14,    0,
   15,
};
const short yycheck[] =
	{                                      10,
  123,    1,  125,   55,   26,   10,   58,   59,   60,  271,
  271,   10,  272,  272,  272,  272,  125,  272,  272,  272,
  272,  272,   44,   61,   10,   47,   10,   10,   10,  123,
  125,  271,  123,  271,   10,  123,   10,   10,    1,   56,
  125,   63,   61,   -1,   -1,   -1,   -1,   -1,   -1,   -1,
  125,   -1,   52,   -1,   -1,   -1,   -1,   -1,  256,  257,
  125,   61,  260,   -1,  262,  263,  264,  265,  266,  267,
  268,  269,  256,  257,   -1,   -1,  260,   -1,  262,  263,
  264,  265,  266,  267,  268,  269,   -1,   -1,   -1,   -1,
   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,
   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,
   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,
   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,
   -1,   -1,   -1,  256,  257,   -1,   -1,  260,  261,  262,
  263,  264,  265,  266,  267,  268,  269,  256,  257,   -1,
   -1,  260,  261,  262,  263,  264,  265,  266,  267,  268,
  269,  256,  257,   -1,   -1,  260,   -1,  262,  263,  264,
  265,  266,  267,  268,  269,  260,  261,  262,  263,  264,
  265,  266,  267,  268,  269,  260,  261,  262,  263,  264,
  265,  266,  267,  268,  269,  260,  261,  262,  263,  264,
  265,  266,  267,  268,  269,   -1,   -1,   -1,   -1,   -1,
   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,
   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,
   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,
   -1,   -1,   -1,   -1,   -1,  256,  257,  258,  259,  260,
   -1,  262,  263,  264,  265,  266,  267,  268,  269,   -1,
  271,
};
#define YYFINAL 1
#ifndef YYDEBUG
#define YYDEBUG 0
#endif
#define YYMAXTOKEN 272
#if YYDEBUG
const char * const yyname[] =
	{
"end-of-file",0,0,0,0,0,0,0,0,0,"'\\n'",0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,"'='",0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,"'{'",0,"'}'",0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,"INTERFACE",
"FIBUPDATE","GROUP","METRIC","PASSIVE","ROBUSTNESS","QUERYINTERVAL",
"QUERYRESPINTERVAL","STARTUPQUERYINTERVAL","STARTUPQUERYCNT",
"LASTMEMBERQUERYINTERVAL","LASTMEMBERQUERYCNT","IGMPVERSION","ERROR","STRING",
"NUMBER",
};
const char * const yyrule[] =
	{"$accept : grammar",
"grammar :",
"grammar : grammar '\\n'",
"grammar : grammar conf_main '\\n'",
"grammar : grammar varset '\\n'",
"grammar : grammar interface '\\n'",
"grammar : grammar group '\\n'",
"grammar : grammar error '\\n'",
"string : string STRING",
"string : STRING",
"yesno : STRING",
"varset : STRING '=' string",
"conf_main : FIBUPDATE yesno",
"conf_main : defaults",
"defaults : LASTMEMBERQUERYCNT NUMBER",
"defaults : LASTMEMBERQUERYINTERVAL NUMBER",
"defaults : METRIC NUMBER",
"defaults : QUERYINTERVAL NUMBER",
"defaults : QUERYRESPINTERVAL NUMBER",
"defaults : ROBUSTNESS NUMBER",
"defaults : STARTUPQUERYCNT NUMBER",
"defaults : STARTUPQUERYINTERVAL NUMBER",
"defaults : IGMPVERSION NUMBER",
"optnl : '\\n' optnl",
"optnl :",
"nl : '\\n' optnl",
"$$1 :",
"interface : INTERFACE STRING $$1 interface_block",
"interface_block : '{' optnl interfaceopts_l '}'",
"interface_block : '{' optnl '}'",
"interface_block :",
"interfaceopts_l : interfaceopts_l interfaceoptsl",
"interfaceopts_l : interfaceoptsl",
"interfaceoptsl : PASSIVE nl",
"interfaceoptsl : defaults nl",
"$$2 :",
"group : GROUP optnl '{' optnl $$2 groupopts_l '}'",
"groupopts_l : groupopts_l groupoptsl",
"groupopts_l : groupoptsl",
"groupoptsl : interface nl",
"groupoptsl : defaults nl",
"groupoptsl : error nl",
};
#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;
unsigned int yystacksize;
int yyparse(void);
#line 362 "parse.y"

struct keywords {
	const char	*k_name;
	int		 k_val;
};

int
yyerror(const char *fmt, ...)
{
	va_list		 ap;
	char		*msg;

	file->errors++;
	va_start(ap, fmt);
	if (vasprintf(&msg, fmt, ap) == -1)
		fatalx("yyerror vasprintf");
	va_end(ap);
	logit(LOG_CRIT, "%s:%d: %s", file->name, yylval.lineno, msg);
	free(msg);
	return (0);
}

int
kw_cmp(const void *k, const void *e)
{
	return (strcmp(k, ((const struct keywords *)e)->k_name));
}

int
lookup(char *s)
{
	/* this has to be sorted always */
	static const struct keywords keywords[] = {
		{"fib-update",			FIBUPDATE},
		{"group",			GROUP},
		{"igmp-version",		IGMPVERSION},
		{"interface",			INTERFACE},
		{"last-member-query-count",	LASTMEMBERQUERYCNT},
		{"last-member-query-interval",	LASTMEMBERQUERYINTERVAL},
		{"metric",			METRIC},
		{"passive",			PASSIVE},
		{"query-interval",		QUERYINTERVAL},
		{"query-response-interval",	QUERYRESPINTERVAL},
		{"robustness",			ROBUSTNESS},
		{"startup-query-count",		STARTUPQUERYCNT},
		{"startup-query-interval",	STARTUPQUERYINTERVAL}
	};
	const struct keywords	*p;

	p = bsearch(s, keywords, sizeof(keywords)/sizeof(keywords[0]),
	    sizeof(keywords[0]), kw_cmp);

	if (p)
		return (p->k_val);
	else
		return (STRING);
}

#define MAXPUSHBACK	128

u_char	*parsebuf;
int	 parseindex;
u_char	 pushback_buffer[MAXPUSHBACK];
int	 pushback_index = 0;

int
lgetc(int quotec)
{
	int		c, next;

	if (parsebuf) {
		/* Read character from the parsebuffer instead of input. */
		if (parseindex >= 0) {
			c = parsebuf[parseindex++];
			if (c != '\0')
				return (c);
			parsebuf = NULL;
		} else
			parseindex++;
	}

	if (pushback_index)
		return (pushback_buffer[--pushback_index]);

	if (quotec) {
		if ((c = getc(file->stream)) == EOF) {
			yyerror("reached end of file while parsing "
			    "quoted string");
			if (file == topfile || popfile() == EOF)
				return (EOF);
			return (quotec);
		}
		return (c);
	}

	while ((c = getc(file->stream)) == '\\') {
		next = getc(file->stream);
		if (next != '\n') {
			c = next;
			break;
		}
		yylval.lineno = file->lineno;
		file->lineno++;
	}

	while (c == EOF) {
		if (file == topfile || popfile() == EOF)
			return (EOF);
		c = getc(file->stream);
	}
	return (c);
}

int
lungetc(int c)
{
	if (c == EOF)
		return (EOF);
	if (parsebuf) {
		parseindex--;
		if (parseindex >= 0)
			return (c);
	}
	if (pushback_index < MAXPUSHBACK-1)
		return (pushback_buffer[pushback_index++] = c);
	else
		return (EOF);
}

int
findeol(void)
{
	int	c;

	parsebuf = NULL;

	/* skip to either EOF or the first real EOL */
	while (1) {
		if (pushback_index)
			c = pushback_buffer[--pushback_index];
		else
			c = lgetc(0);
		if (c == '\n') {
			file->lineno++;
			break;
		}
		if (c == EOF)
			break;
	}
	return (ERROR);
}

int
yylex(void)
{
	u_char	 buf[8096];
	u_char	*p, *val;
	int	 quotec, next, c;
	int	 token;

top:
	p = buf;
	while ((c = lgetc(0)) == ' ' || c == '\t')
		; /* nothing */

	yylval.lineno = file->lineno;
	if (c == '#')
		while ((c = lgetc(0)) != '\n' && c != EOF)
			; /* nothing */
	if (c == '$' && parsebuf == NULL) {
		while (1) {
			if ((c = lgetc(0)) == EOF)
				return (0);

			if (p + 1 >= buf + sizeof(buf) - 1) {
				yyerror("string too long");
				return (findeol());
			}
			if (isalnum(c) || c == '_') {
				*p++ = c;
				continue;
			}
			*p = '\0';
			lungetc(c);
			break;
		}
		val = symget(buf);
		if (val == NULL) {
			yyerror("macro '%s' not defined", buf);
			return (findeol());
		}
		parsebuf = val;
		parseindex = 0;
		goto top;
	}

	switch (c) {
	case '\'':
	case '"':
		quotec = c;
		while (1) {
			if ((c = lgetc(quotec)) == EOF)
				return (0);
			if (c == '\n') {
				file->lineno++;
				continue;
			} else if (c == '\\') {
				if ((next = lgetc(quotec)) == EOF)
					return (0);
				if (next == quotec || c == ' ' || c == '\t')
					c = next;
				else if (next == '\n') {
					file->lineno++;
					continue;
				} else
					lungetc(next);
			} else if (c == quotec) {
				*p = '\0';
				break;
			} else if (c == '\0') {
				yyerror("syntax error");
				return (findeol());
			}
			if (p + 1 >= buf + sizeof(buf) - 1) {
				yyerror("string too long");
				return (findeol());
			}
			*p++ = c;
		}
		yylval.v.string = strdup(buf);
		if (yylval.v.string == NULL)
			err(1, "yylex: strdup");
		return (STRING);
	}

#define allowed_to_end_number(x) \
	(isspace(x) || x == ')' || x ==',' || x == '/' || x == '}' || x == '=')

	if (c == '-' || isdigit(c)) {
		do {
			*p++ = c;
			if ((unsigned)(p-buf) >= sizeof(buf)) {
				yyerror("string too long");
				return (findeol());
			}
		} while ((c = lgetc(0)) != EOF && isdigit(c));
		lungetc(c);
		if (p == buf + 1 && buf[0] == '-')
			goto nodigits;
		if (c == EOF || allowed_to_end_number(c)) {
			const char *errstr = NULL;

			*p = '\0';
			yylval.v.number = strtonum(buf, LLONG_MIN,
			    LLONG_MAX, &errstr);
			if (errstr) {
				yyerror("\"%s\" invalid number: %s",
				    buf, errstr);
				return (findeol());
			}
			return (NUMBER);
		} else {
nodigits:
			while (p > buf + 1)
				lungetc(*--p);
			c = *--p;
			if (c == '-')
				return (c);
		}
	}

#define allowed_in_string(x) \
	(isalnum(x) || (ispunct(x) && x != '(' && x != ')' && \
	x != '{' && x != '}' && \
	x != '!' && x != '=' && x != '#' && \
	x != ','))

	if (isalnum(c) || c == ':' || c == '_') {
		do {
			*p++ = c;
			if ((unsigned)(p-buf) >= sizeof(buf)) {
				yyerror("string too long");
				return (findeol());
			}
		} while ((c = lgetc(0)) != EOF && (allowed_in_string(c)));
		lungetc(c);
		*p = '\0';
		if ((token = lookup(buf)) == STRING)
			if ((yylval.v.string = strdup(buf)) == NULL)
				err(1, "yylex: strdup");
		return (token);
	}
	if (c == '\n') {
		yylval.lineno = file->lineno;
		file->lineno++;
	}
	if (c == EOF)
		return (0);
	return (c);
}

int
check_file_secrecy(int fd, const char *fname)
{
	struct stat	st;

	if (fstat(fd, &st)) {
		log_warn("cannot stat %s", fname);
		return (-1);
	}
	if (st.st_uid != 0 && st.st_uid != getuid()) {
		log_warnx("%s: owner not root or current user", fname);
		return (-1);
	}
	if (st.st_mode & (S_IWGRP | S_IXGRP | S_IRWXO)) {
		log_warnx("%s: group writable or world read/writable", fname);
		return (-1);
	}
	return (0);
}

struct file *
pushfile(const char *name, int secret)
{
	struct file	*nfile;

	if ((nfile = calloc(1, sizeof(struct file))) == NULL) {
		log_warn("malloc");
		return (NULL);
	}
	if ((nfile->name = strdup(name)) == NULL) {
		log_warn("malloc");
		free(nfile);
		return (NULL);
	}
	if ((nfile->stream = fopen(nfile->name, "r")) == NULL) {
		log_warn("%s", nfile->name);
		free(nfile->name);
		free(nfile);
		return (NULL);
	} else if (secret &&
	    check_file_secrecy(fileno(nfile->stream), nfile->name)) {
		fclose(nfile->stream);
		free(nfile->name);
		free(nfile);
		return (NULL);
	}
	nfile->lineno = 1;
	TAILQ_INSERT_TAIL(&files, nfile, entry);
	return (nfile);
}

int
popfile(void)
{
	struct file	*prev;

	if ((prev = TAILQ_PREV(file, files, entry)) != NULL)
		prev->errors += file->errors;

	TAILQ_REMOVE(&files, file, entry);
	fclose(file->stream);
	free(file->name);
	free(file);
	file = prev;
	return (file ? 0 : EOF);
}

struct dvmrpd_conf *
parse_config(char *filename, int opts)
{
	int		 errors = 0;
	struct sym	*sym, *next;
	struct timeval	 now;

	if ((conf = calloc(1, sizeof(struct dvmrpd_conf))) == NULL) {
		errx(1, "parse_config calloc");
		return (NULL);
	}

	defs = &globaldefs;
	defs->probe_interval = DEFAULT_PROBE_INTERVAL;
	defs->last_member_query_cnt = DEFAULT_LAST_MEMBER_QUERY_CNT;
	defs->last_member_query_interval = DEFAULT_LAST_MEMBER_QUERY_INTERVAL;
	defs->metric = DEFAULT_METRIC;
	defs->query_interval = DEFAULT_QUERY_INTERVAL;
	defs->query_resp_interval = DEFAULT_QUERY_RESP_INTERVAL;
	defs->robustness = DEFAULT_ROBUSTNESS;
	defs->startup_query_cnt = DEFAULT_STARTUP_QUERY_CNT;
	defs->startup_query_interval = DEFAULT_STARTUP_QUERY_INTERVAL;
	defs->igmp_version = DEFAULT_IGMP_VERSION;
	defs->dead_interval = NBR_TMOUT;

	if ((file = pushfile(filename, 1)) == NULL) {
		free(conf);
		return (NULL);
	}
	topfile = file;

	gettimeofday(&now, NULL);
	conf->gen_id = (u_int32_t)now.tv_sec;	/* for a while after 2038 */
	conf->opts = opts;

	yyparse();
	errors = file->errors;
	popfile();

	/* Free macros and check which have not been used. */
	TAILQ_FOREACH_SAFE(sym, &symhead, entry, next) {
		if ((conf->opts & DVMRPD_OPT_VERBOSE2) && !sym->used)
			fprintf(stderr, "warning: macro '%s' not "
			    "used\n", sym->nam);
		if (!sym->persist) {
			free(sym->nam);
			free(sym->val);
			TAILQ_REMOVE(&symhead, sym, entry);
			free(sym);
		}
	}

	if (errors) {
		clear_config(conf);
		return (NULL);
	}

	return (conf);
}

int
symset(const char *nam, const char *val, int persist)
{
	struct sym	*sym;

	TAILQ_FOREACH(sym, &symhead, entry) {
		if (strcmp(nam, sym->nam) == 0)
			break;
	}

	if (sym != NULL) {
		if (sym->persist == 1)
			return (0);
		else {
			free(sym->nam);
			free(sym->val);
			TAILQ_REMOVE(&symhead, sym, entry);
			free(sym);
		}
	}
	if ((sym = calloc(1, sizeof(*sym))) == NULL)
		return (-1);

	sym->nam = strdup(nam);
	if (sym->nam == NULL) {
		free(sym);
		return (-1);
	}
	sym->val = strdup(val);
	if (sym->val == NULL) {
		free(sym->nam);
		free(sym);
		return (-1);
	}
	sym->used = 0;
	sym->persist = persist;
	TAILQ_INSERT_TAIL(&symhead, sym, entry);
	return (0);
}

int
cmdline_symset(char *s)
{
	char	*sym, *val;
	int	ret;
	size_t	len;

	if ((val = strrchr(s, '=')) == NULL)
		return (-1);

	len = strlen(s) - strlen(val) + 1;
	if ((sym = malloc(len)) == NULL)
		errx(1, "cmdline_symset: malloc");

	strlcpy(sym, s, len);

	ret = symset(sym, val + 1, 1);
	free(sym);

	return (ret);
}

char *
symget(const char *nam)
{
	struct sym	*sym;

	TAILQ_FOREACH(sym, &symhead, entry) {
		if (strcmp(nam, sym->nam) == 0) {
			sym->used = 1;
			return (sym->val);
		}
	}
	return (NULL);
}

struct iface *
conf_get_if(struct kif *kif)
{
	struct iface	*i;

	if (kif->ifindex >= MAXVIFS) {
		yyerror("interface %s index too large", kif->ifname);
		return (NULL);
	}

	LIST_FOREACH(i, &conf->iface_list, entry)
		if (i->ifindex == kif->ifindex) {
			yyerror("interface %s already configured",
			    kif->ifname);
			return (NULL);
		}

	i = if_new(kif);
	i->passive = 0;
	i->recv_query_resp_interval = DEFAULT_QUERY_RESP_INTERVAL;

	return (i);
}

void
clear_config(struct dvmrpd_conf *xconf)
{
	/* XXX clear conf */
		/* ... */
}
#line 854 "parse.c"
/* allocate initial stack or double stack size, up to YYMAXDEPTH */
static int yygrowstack(void)
{
    unsigned int newsize;
    long sslen;
    short *newss;
    YYSTYPE *newvs;

    if ((newsize = yystacksize) == 0)
        newsize = YYINITSTACKSIZE;
    else if (newsize >= YYMAXDEPTH)
        return -1;
    else if ((newsize *= 2) > YYMAXDEPTH)
        newsize = YYMAXDEPTH;
    sslen = 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 + sslen;
    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 + sslen;
    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
yyparse(void)
{
    int yym, yyn, yystate;
#if YYDEBUG
    const char *yys;

    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(__GNUC__)
    goto yynewerror;
#endif
yynewerror:
    yyerror("syntax error");
#if 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];
    if (yym)
        yyval = yyvsp[1-yym];
    else
        memset(&yyval, 0, sizeof yyval);
    switch (yyn)
    {
case 7:
#line 134 "parse.y"
{ file->errors++; }
break;
case 8:
#line 137 "parse.y"
{
			if (asprintf(&yyval.v.string, "%s %s", yyvsp[-1].v.string, yyvsp[0].v.string) == -1) {
				free(yyvsp[-1].v.string);
				free(yyvsp[0].v.string);
				yyerror("string: asprintf");
				YYERROR;
			}
			free(yyvsp[-1].v.string);
			free(yyvsp[0].v.string);
		}
break;
case 10:
#line 150 "parse.y"
{
			if (!strcmp(yyvsp[0].v.string, "yes"))
				yyval.v.number = 1;
			else if (!strcmp(yyvsp[0].v.string, "no"))
				yyval.v.number = 0;
			else {
				yyerror("syntax error, "
				    "either yes or no expected");
				free(yyvsp[0].v.string);
				YYERROR;
			}
			free(yyvsp[0].v.string);
		}
break;
case 11:
#line 165 "parse.y"
{
			char *s = yyvsp[-2].v.string;
			if (conf->opts & DVMRPD_OPT_VERBOSE)
				printf("%s = \"%s\"\n", yyvsp[-2].v.string, yyvsp[0].v.string);
			while (*s++) {
				if (isspace((unsigned char)*s)) {
					yyerror("macro name cannot contain "
					    "whitespace");
					YYERROR;
				}
			}
			if (symset(yyvsp[-2].v.string, yyvsp[0].v.string, 0) == -1)
				fatal("cannot store variable");
			free(yyvsp[-2].v.string);
			free(yyvsp[0].v.string);
		}
break;
case 12:
#line 183 "parse.y"
{
			if (yyvsp[0].v.number == 0)
				conf->flags |= DVMRPD_FLAG_NO_FIB_UPDATE;
			else
				conf->flags &= ~DVMRPD_FLAG_NO_FIB_UPDATE;
		}
break;
case 14:
#line 192 "parse.y"
{
			if (yyvsp[0].v.number < MIN_LAST_MEMBER_QUERY_CNT ||
			    yyvsp[0].v.number > MAX_LAST_MEMBER_QUERY_CNT) {
				yyerror("last-member-query-count out of "
				    "range (%d-%d)",
				    MIN_LAST_MEMBER_QUERY_CNT,
				    MAX_LAST_MEMBER_QUERY_CNT);
				YYERROR;
			}
			defs->last_member_query_cnt = yyvsp[0].v.number;
		}
break;
case 15:
#line 203 "parse.y"
{
			if (yyvsp[0].v.number < MIN_LAST_MEMBER_QUERY_INTERVAL ||
			    yyvsp[0].v.number > MAX_LAST_MEMBER_QUERY_INTERVAL) {
				yyerror("last-member-query-interval out of "
				    "range (%d-%d)",
				    MIN_LAST_MEMBER_QUERY_INTERVAL,
				    MAX_LAST_MEMBER_QUERY_INTERVAL);
				YYERROR;
			}
			defs->last_member_query_interval = yyvsp[0].v.number;
		}
break;
case 16:
#line 214 "parse.y"
{
			if (yyvsp[0].v.number < MIN_METRIC || yyvsp[0].v.number > MAX_METRIC) {
				yyerror("metric out of range (%d-%d)",
				    MIN_METRIC, MAX_METRIC);
				YYERROR;
			}
			defs->metric = yyvsp[0].v.number;
		}
break;
case 17:
#line 222 "parse.y"
{
			if (yyvsp[0].v.number < MIN_QUERY_INTERVAL ||
			    yyvsp[0].v.number > MAX_QUERY_INTERVAL) {
				yyerror("query-interval out of range (%d-%d)",
				    MIN_QUERY_INTERVAL, MAX_QUERY_INTERVAL);
				YYERROR;
			}
			defs->query_interval = yyvsp[0].v.number;
		}
break;
case 18:
#line 231 "parse.y"
{
			if (yyvsp[0].v.number < MIN_QUERY_RESP_INTERVAL ||
			    yyvsp[0].v.number > MAX_QUERY_RESP_INTERVAL) {
				yyerror("query-response-interval out of "
				    "range (%d-%d)",
				    MIN_QUERY_RESP_INTERVAL,
				    MAX_QUERY_RESP_INTERVAL);
				YYERROR;
			}
			defs->query_resp_interval = yyvsp[0].v.number;
		}
break;
case 19:
#line 242 "parse.y"
{
			if (yyvsp[0].v.number < MIN_ROBUSTNESS || yyvsp[0].v.number > MAX_ROBUSTNESS) {
				yyerror("robustness out of range (%d-%d)",
				    MIN_ROBUSTNESS, MAX_ROBUSTNESS);
				YYERROR;
			}
			defs->robustness = yyvsp[0].v.number;
		}
break;
case 20:
#line 250 "parse.y"
{
			if (yyvsp[0].v.number < MIN_STARTUP_QUERY_CNT ||
			    yyvsp[0].v.number > MAX_STARTUP_QUERY_CNT) {
				yyerror("startup-query-count out of "
				    "range (%d-%d)",
				    MIN_STARTUP_QUERY_CNT,
				    MAX_STARTUP_QUERY_CNT);
				YYERROR;
			}
			defs->startup_query_cnt = yyvsp[0].v.number;
		}
break;
case 21:
#line 261 "parse.y"
{
			if (yyvsp[0].v.number < MIN_STARTUP_QUERY_INTERVAL ||
			    yyvsp[0].v.number > MAX_STARTUP_QUERY_INTERVAL) {
				yyerror("startup-query-interval out of "
				    "range (%d-%d)",
				    MIN_STARTUP_QUERY_INTERVAL,
				    MAX_STARTUP_QUERY_INTERVAL);
				YYERROR;
			}
			defs->startup_query_interval = yyvsp[0].v.number;
		}
break;
case 22:
#line 272 "parse.y"
{
			if (yyvsp[0].v.number < MIN_IGMP_VERSION ||
			    yyvsp[0].v.number > MAX_IGMP_VERSION) {
				yyerror("igmp-version out of range (%d-%d)",
				    MIN_IGMP_VERSION, MAX_IGMP_VERSION);
				YYERROR;
			}
			defs->igmp_version = yyvsp[0].v.number;
		}
break;
case 26:
#line 290 "parse.y"
{
			struct kif *kif;

			if ((kif = kif_findname(yyvsp[0].v.string)) == NULL) {
				yyerror("unknown interface %s", yyvsp[0].v.string);
				free(yyvsp[0].v.string);
				YYERROR;
			}
			free(yyvsp[0].v.string);
			iface = conf_get_if(kif);
			if (iface == NULL)
				YYERROR;
			LIST_INSERT_HEAD(&conf->iface_list, iface, entry);

			memcpy(&ifacedefs, defs, sizeof(ifacedefs));
			defs = &ifacedefs;
		}
break;
case 27:
#line 306 "parse.y"
{
			iface->probe_interval = defs->probe_interval;
			iface->query_interval = defs->query_interval;
			iface->query_resp_interval = defs->query_resp_interval;
			iface->startup_query_interval =
			    defs->startup_query_interval;
			iface->startup_query_cnt = defs->startup_query_cnt;
			iface->last_member_query_interval =
			    defs->last_member_query_interval;
			iface->last_member_query_cnt =
			    defs->last_member_query_cnt;
			iface->dead_interval = defs->dead_interval;
			iface->metric = defs->metric;
			iface->robustness = defs->robustness;
			iface->igmp_version = defs->igmp_version;
			if (grdefs)
				defs = grdefs;
			else
				defs = &globaldefs;
			iface = NULL;
		}
break;
case 33:
#line 338 "parse.y"
{ iface->passive = 1; }
break;
case 35:
#line 342 "parse.y"
{
			memcpy(&groupdefs, defs, sizeof(groupdefs));
			grdefs = defs = &groupdefs;
		}
break;
case 36:
#line 346 "parse.y"
{
			grdefs = NULL;
			defs = &globaldefs;
		}
break;
#line 1287 "parse.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);
}

Generated by: GCOVR (Version 3.3)