%{

/* ----------------------------------------------------------------------- *

 *   

 *  master_tok.l - master map tokenizer.

 *

 *   Copyright 2006 Ian Kent <raven@themaw.net>

 *

 *   This program is free software; you can redistribute it and/or modify

 *   it under the terms of the GNU General Public License as published by

 *   the Free Software Foundation, Inc., 675 Mass Ave, Cambridge MA 02139,

 *   USA; either version 2 of the License, or (at your option) any later

 *   version.

 *   

 *   This program is distributed in the hope that it will be useful,

 *   but WITHOUT ANY WARRANTY; without even the implied warranty of

 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 *   GNU General Public License for more details.

 *

 * ----------------------------------------------------------------------- */

#ifdef ECHO

# undef ECHO

#endif /* ECHO */

static void master_echo(void);	/* forward definition */

#define ECHO master_echo()

#include <stdio.h>

#include <stdlib.h>

#include <string.h>

#include <ctype.h>

#include "master_parse.tab.h"

/*

 * There are some things that need to be defined only if useing GNU flex.

 * These must not be defined if using standard lex

 */

#ifdef FLEX_SCANNER

int master_lineno;

#endif

int master_lex(void);

int master_wrap(void);

/* no need for yywrap() */

#define YY_SKIP_YYWRAP

#ifndef YY_STACK_USED

#define YY_STACK_USED 0

#endif

#ifndef YY_ALWAYS_INTERACTIVE

#define YY_ALWAYS_INTERACTIVE 0

#endif

#ifndef YY_NEVER_INTERACTIVE

#define YY_NEVER_INTERACTIVE 0

#endif

#ifndef YY_MAIN

#define YY_MAIN 0

#endif

void master_set_scan_buffer(const char *);

const char *line = NULL;

#ifdef FLEX_SCANNER

const char *line_pos = NULL;

const char *line_lim = NULL;

int my_yyinput(char *, int);

#undef YY_INPUT

#define YY_INPUT(b, r, ms) (r = my_yyinput(b, ms))

#else

#undef input

#undef unput

#define input()  (*(char *) line++)

#define unput(c) (*(char *) --line = c)

#endif

#define BUFF_LEN	1024

char buff[BUFF_LEN];

char *bptr;

char *optr = buff;

unsigned int tlen;

%}

%option nounput

%x PATHSTR MAPSTR DNSTR OPTSTR OCTAL

WS		[[:blank:]]+

OPTWS		[[:blank:]]*

NL		\r?\n

CONT		\\\n{OPTWS}

OPTIONSTR	([\-]?([[:alpha:]_]([[:alnum:]_\-])*(=(\"?([[:alnum:]_\-\:\.])+\"?))?)+)

MACROSTR	(-D{OPTWS}([[:alpha:]_]([[:alnum:]_\-\.])*)=([[:alnum:]_\-\.])+)

SLASHIFYSTR	(--(no-)?slashify-colons)

NUMBER		[0-9]+

OCTALNUMBER	[0-7]+

DNSERVSTR1	([[:alpha:]][[:alnum:]\-.]*(:[0-9]+)?:)

DNSERVSTR2	(\[([[:xdigit:]]:.)+\](:[0-9]+)?:)

DNSERVSTR3	(\/\/[[:alpha:]][[:alnum:]\-.]*(:[0-9]+)?\/)

DNSERVSTR4	(\/\/\[([[:xdigit:]]:.)+\](:[0-9]+)?\/)

DNSERVSTR5	(([[:digit:]]{1,3}\.){3}[[:digit:]]{1,3}(:[0-9]+)?:)

DNSERVSTR6	(\/\/([[:digit:]]{1,3}\.){3}[[:digit:]]{1,3}(:[0-9]+)?\/)

DNSERVERSTR	({DNSERVSTR1}|{DNSERVSTR2}|{DNSERVSTR3}|{DNSERVSTR4}|{DNSERVSTR5}|{DNSERVSTR6})

AT_CN		([cC][[nN])

AT_NMN		([nN][iI][sS][Mm][aA][pP][Nn][aA][mM][eE])

AT_AMN		([aA][uU][tT][oO][mM][oO][uU][nN][tT][Mm][aA][pP][Nn][aA][mM][eE])

AT_OU		([oO][[uU])

AT_DC		([dD][[cC])

AT_O		([oO])

AT_C		([cC])

AT_L		([lL])

DNATTRSTR	({AT_CN}|{AT_NMN}|{AT_AMN}|{AT_OU}|{AT_DC}|{AT_O}|{AT_C}|{AT_L})

DNNAMESTR1	([[:alnum:]_.\- ]+)

DNNAMESTR2	([[:alnum:]_.\-]+)

INTMAP		(-hosts|-null)

MULTI		((multi)(,(sun|hesiod))?(:{OPTWS}|{WS}))

MULTISEP	([\-]{2}[[:blank:]]+)

MTYPE		((file|program|exec|sss|yp|nis|nisplus|ldap|ldaps|hesiod|userdir)(,(sun|hesiod|amd))?(:{OPTWS}|{WS}))

OPTTOUT		(-t{OPTWS}|-t{OPTWS}={OPTWS}|--timeout{OPTWS}|--timeout{OPTWS}={OPTWS})

OPTNTOUT	(-n{OPTWS}|-n{OPTWS}={OPTWS}|--negative-timeout{OPTWS}|--negative-timeout{OPTWS}={OPTWS})

MODE		(--mode{OPTWS}|--mode{OPTWS}={OPTWS})

%%

<INITIAL>{

	{NL} | 

	\x00 {

		if (optr != buff) {

			*optr = '\0';

			strcpy(master_lval.strtype, buff);

			return NILL;

		}

	}

	#.*  { return COMMENT; }

	"/" {

		if (optr != buff) {

			*optr = '\0';

			strcpy(master_lval.strtype, buff);

			return NILL;

		}

		BEGIN(PATHSTR);

		bptr = buff;

		yyless(0);

	}

	.    { *optr++ = *master_text; }

}

<PATHSTR>{

	\x00 {

		BEGIN(INITIAL);

		*bptr++ = *master_text;

		strcpy(master_lval.strtype, buff);

		return NILL;

	}

	\\.  { *bptr++ = *(master_text + 1); }

	\"   {

		BEGIN(INITIAL);

		*bptr++ = *master_text;

		*bptr = '\0';

		strcpy(master_lval.strtype, buff);

		return QUOTE;

	}

	{WS} {

		BEGIN(MAPSTR);

		*bptr = '\0';

		strcpy(master_lval.strtype, buff);

		bptr = buff;

		memset(buff, 0, BUFF_LEN);

		return(PATH);

	}

	<<EOF>> {

		BEGIN(INITIAL);

		*bptr = '\0';

		strcpy(master_lval.strtype, buff);

		return(PATH);

	}

	{NL} {

		BEGIN(INITIAL);

		*bptr = '\0';

		strcpy(master_lval.strtype, buff);

		return PATH;

	}

	.    { *bptr++ = *master_text; }

}

<MAPSTR>{

	{OPTWS}\\\n{OPTWS} {}

	{MULTI} {

		tlen = master_leng - 1;

		if (bptr != buff && isblank(master_text[tlen])) {

			/*

			 * We can't handle unescaped white space in map names

			 * so just eat the white space. We always have the

			 * "multi" at the beginning of the string so the while

			 * will not fall off the end.

			 */

			while (isblank(master_text[tlen - 1]))

				tlen--;

			strncat(buff, master_text, tlen);

			bptr += tlen;

			yyless(tlen);

		} else {

			strcpy(master_lval.strtype, master_text);

			return(MULTITYPE);

		}

	}

	{MTYPE} |

	{MTYPE}/{DNSERVERSTR}{DNATTRSTR}= |

	{MTYPE}/{DNATTRSTR}= {

		tlen = master_leng - 1;

		if (bptr != buff && isblank(master_text[tlen])) {

			/*

			 * We can't handle unescaped white space in map names

			 * so just eat the white space. We always have the

			 * maptype keyword at the beginning of the string so

			 * the while will not fall off the end.

			 */

			while (isblank(master_text[tlen - 1]))

				tlen--;

			strncat(buff, master_text, tlen);

			bptr += tlen;

			yyless(tlen);

		} else {

			strcpy(master_lval.strtype, master_text);

			return(MAPTYPE);

		}

	}

	{MULTISEP} { return(DDASH); }

	":"	{ return(COLON); }

	"-hosts" {

		BEGIN(OPTSTR);

		strcpy(master_lval.strtype, master_text);

		return MAPHOSTS;

	}

	"-null" {

		BEGIN(OPTSTR);

		strcpy(master_lval.strtype, master_text);

		return MAPNULL;

	}

	"-xfn" {

		/*

		 * The X/Open Federated Naming service isn't supported

		 * and the parser will call YYABORT() when it sees the

		 * MAPXFN token so we must set the start state to the

		 * INITIAL state here for the next yylex() call.

		 */

		BEGIN(INITIAL);

		strcpy(master_lval.strtype, master_text);

		return MAPXFN;

	}

	"//" {

		BEGIN(DNSTR);

		yyless(0);

	}

	{DNSERVERSTR}{DNATTRSTR}= {

		BEGIN(DNSTR);

		yyless(0);

	}

	{DNATTRSTR}= {

		BEGIN(DNSTR);

		yyless(0);

	}

	{OPTWS}/{NL} {

		BEGIN(INITIAL);

		*bptr = '\0';

		strcpy(master_lval.strtype, buff);

		bptr = buff;

		return(MAPNAME);

	}

	\\. { *bptr++ = *(master_text + 1); }

	{WS} {

		BEGIN(OPTSTR);

		*bptr = '\0';

		strcpy(master_lval.strtype, buff);

		bptr = buff;

		return(MAPNAME);

	}

	{NL} |

	\x00 {

		BEGIN(INITIAL);

		*bptr = '\0';

		strcpy(master_lval.strtype, buff);

		return(MAPNAME);

	}

	<<EOF>> {

		BEGIN(INITIAL);

		*bptr = '\0';

		strcpy(master_lval.strtype, buff);

		return(MAPNAME);

	}

	.	{ *bptr++ = *master_text; }

}

<DNSTR>{

	{OPTWS}\\\n{OPTWS} {}

	{DNSERVERSTR} {

		strcpy(master_lval.strtype, master_text);

		return DNSERVER;

	}

	{DNATTRSTR}/"=" {

		strcpy(master_lval.strtype, master_text);

		return DNATTR;

	}

	"=" {

		return EQUAL;

	}

	{DNNAMESTR1}/","{DNATTRSTR}"=" {

		strcpy(master_lval.strtype, master_text);

		return DNNAME;

	}

	{DNNAMESTR2} {

		strcpy(master_lval.strtype, master_text);

		return DNNAME;

	}

	{OPTWS}","{OPTWS} {

		return COMMA;

	}

	{WS}"=" |

	"="{WS} {

		BEGIN(INITIAL);

		strcpy(master_lval.strtype, master_text);

		return SPACE;

	}

	{WS}    { BEGIN(OPTSTR); }

	{NL} |

	\x00	{ BEGIN(INITIAL); }

	<<EOF>> { BEGIN(INITIAL); }

}

<OPTSTR>{

	{OPTWS}\\\n{OPTWS} {}

	{MULTISEP} {

		BEGIN(MAPSTR);

		return(DDASH);

	}

	{OPTTOUT}/{NUMBER} { return(OPT_TIMEOUT); }

	{OPTNTOUT}/{NUMBER} { return(OPT_NTIMEOUT); }

	{NUMBER} {

		master_lval.longtype = atol(master_text);

		return(NUMBER);

	}

	-?symlink		{ return(OPT_SYMLINK); }

	-?nobind		{ return(OPT_NOBIND); }

	-?nobrowse		{ return(OPT_NOGHOST); }

	-?slave			{ return(OPT_SLAVE); }

	-?private		{ return(OPT_PRIVATE); }

	-?strictexpire		{ return(OPT_STRICTEXPIRE); }

	-g|--ghost|-?browse	{ return(OPT_GHOST); }

	-v|--verbose		{ return(OPT_VERBOSE); }

	-d|--debug		{ return(OPT_DEBUG); }

	-w|--use-weight-only	{ return(OPT_USE_WEIGHT); }

	-r|--random-multimount-selection { return(OPT_RANDOM); }

	{MODE}/{OCTALNUMBER} {

		BEGIN(OCTAL);

		return(OPT_MODE);

	}

	{OPTWS}","{OPTWS}	{ return(COMMA); }

	{OPTWS} {}

	{SLASHIFYSTR} {

		strcpy(master_lval.strtype, master_text);

		return(OPTION);

	}

	{MACROSTR} {

		strcpy(master_lval.strtype, master_text);

		return(OPTION);

	}

	{OPTIONSTR} {

		strcpy(master_lval.strtype, master_text);

		return(OPTION);

	}

	"="	{

		strcpy(master_lval.strtype, master_text);

		return(EQUAL);

	}

	{WS}	{}

	{NL} |

	\x00 { BEGIN(INITIAL); }

	<<EOF>> { BEGIN(INITIAL); }

}

<OCTAL>{

	{OCTALNUMBER} {

		master_lval.longtype = strtoul(master_text, NULL, 8);

		return(OCTALNUMBER);

	}

	. { BEGIN(OPTSTR); yyless(0); }

}

%%

#include "automount.h"

int master_wrap(void)

{

	return 1;

}

static void master_echo(void)

{

	logmsg("%s", master_text);

	return;

}

#ifdef FLEX_SCANNER

void master_set_scan_buffer(const char *buffer)

{

	memset(buff, 0, sizeof(buff));

	optr = buff;

	YY_FLUSH_BUFFER;

	line = buffer;

	line_pos = &line[0];

	/*

	 * Ensure buffer is 1 greater than string and is zeroed before

	 * the parse so we can fit the extra NULL which allows us to

	 * explicitly match an end of line within the buffer (ie. the

	 * need for 2 NULLS when parsing in memeory buffers).

	 */

	line_lim = line + strlen(buffer) + 1;

}

#ifndef min

#define min(a,b) (((a) < (b)) ? (a) : (b))

#endif

int my_yyinput(char *buffer, int max_size)

{

	int n = min(max_size, line_lim - line_pos);

	if (n > 0) {

		memcpy(buffer, line_pos, n);

		line_pos += n;

	}

	return n;

}

#else

void master_set_scan_buffer(const char *buffer)

{

	line = buffer;

}

#endif