/*
 * netsniff-ng - the packet sniffing beast
 * By Daniel Borkmann <daniel@netsniff-ng.org>
 * Copyright 2012 Daniel Borkmann <dborkma@tik.ee.ethz.ch>,
 * Swiss federal institute of technology (ETH Zurich)
 * Subject to the GPL, version 2.
 */

/* lex-func-prefix: yy */

%{

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include <stdbool.h>

#include "trafgen_parser.tab.h"
#include "xmalloc.h"
#include "built_in.h"

extern void yyerror(const char *);

static char *try_convert_shellcode(char *sstr)
{
	bool found_any = false;
	char *bstr, *ostr = sstr, *hay, *orig = sstr;
	size_t j = 0, blen, slen = strlen(sstr), tot = 0;
	const char *needle = "\\x";

	sstr++;
	slen -= 2;

	if (slen % 4 != 0)
		return orig;

	blen = slen / 4;
	hay = sstr;
	while ((hay = strstr(hay, needle)) != NULL ) {
		hay += strlen(needle) + 2;
		found_any = true;
		tot++;
	}

	if (blen != tot || !found_any)
		return orig;

	blen += 2;
	bstr = xzmalloc(blen);

	bstr[j++] = '\"';
	while (j < blen - 1)
		bstr[j++] = (uint8_t) strtoul(sstr + 2, &sstr, 16);
	bstr[j++] = '\"';

	xfree(ostr);
	return bstr;
}

%}

%option align
%option nounput
%option noyywrap
%option noreject
%option 8bit
%option caseless
%option noinput
%option nodefault

number_oct	([0][0-9]+)
number_hex	([0]?[x][a-fA-F0-9]+)
number_bin	([0]?[b][0-1]+)
number_dec	(([0])|([1-9][0-9]*))
number_ascii	([a-zA-Z])

%%

"cpu"		{ return K_CPU; }
"fill"		{ return K_FILL; }
"rnd"		{ return K_RND; }
"csum16"	{ return K_CSUMIP; }
"csumip"	{ return K_CSUMIP; }
"csumip4"	{ return K_CSUMIP; }
"csumicmp"	{ return K_CSUMIP; }
"csumicmp4"	{ return K_CSUMIP; }
"csumudp"	{ return K_CSUMUDP; }
"csumtcp"	{ return K_CSUMTCP; }
"drnd"		{ return K_DRND; }
"dinc"		{ return K_DINC; }
"ddec"		{ return K_DDEC; }
"seqinc"	{ return K_SEQINC; }
"seqdec"	{ return K_SEQDEC; }
"const8"|"c8"	{ return K_CONST8; }
"const16"|"c16"	{ return K_CONST16; }
"const32"|"c32"	{ return K_CONST32; }
"const64"|"c64"	{ return K_CONST64; }

[ ]*"-"[ ]*	{ return '-'; }
[ ]*"+"[ ]*	{ return '+'; }
[ ]*"*"[ ]*	{ return '*'; }
[ ]*"/"[ ]*	{ return '/'; }
[ ]*"%"[ ]*	{ return '%'; }
[ ]*"&"[ ]*	{ return '&'; }
[ ]*"|"[ ]*	{ return '|'; }
[ ]*"<"[ ]*	{ return '<'; }
[ ]*">"[ ]*	{ return '>'; }
[ ]*"^"[ ]*	{ return '^'; }
"{"		{ return '{'; }
"}"		{ return '}'; }
"("		{ return '('; }
")"		{ return ')'; }
"["		{ return '['; }
"]"		{ return ']'; }
","		{ return ','; }
":"		{ return ':'; }

"\n"		{ yylineno++; }

"\""[^\"]+"\""	{ yylval.str = try_convert_shellcode(xstrdup(yytext));
		  return string; }

([ \t\n]+)?	{ return K_WHITE; }

"/*"([^\*]|\*[^/])*"*/" { return K_COMMENT; }

"#"[^\n]*	{ return K_COMMENT; }

{number_hex}	{ yylval.number = strtoul(yytext + (yytext[0] == 'x' ? 1 : 0),
					  NULL, 16);
		  return number; }

{number_dec}	{ yylval.number = strtol(yytext, NULL, 10);
		  return number; }

{number_oct}	{ yylval.number = strtol(yytext + 1, NULL, 8);
		  return number; }

{number_bin}	{ yylval.number = strtol(yytext + (yytext[0] == 'b' ? 1 : 2),
					 NULL, 2);
		  return number; }

{number_ascii}	{ yylval.number = (uint8_t) (*yytext);
		  return number; }

"'\\x"[a-fA-F0-9]{2}"'" { yylval.number = strtol(yytext + 3, NULL, 16);
		  return number; }

"'"."'"		{ yylval.number = (uint8_t) (*(yytext + 1));
		  return number; }

";"[^\n]*	{/* NOP */}
.		{ printf("Unknown character '%s'", yytext);
		  yyerror("lex Unknown character"); }

%%
'/cgit.cgi/linux/net-next.git/commit/include/math-emu/op-common.h?h=nds-private-remove&amp;id=3ddc76dfc786cc6f87852693227fb0b1f124f807'>op-common.h</a></div><div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='h' value='nds-private-remove'/><input type='hidden' name='id' value='3ddc76dfc786cc6f87852693227fb0b1f124f807'/><table><tr><td colspan='2'/></tr><tr><td class='label'>context:</td><td class='ctrl'><select name='context' onchange='this.form.submit();'><option value='1'>1</option><option value='2'>2</option><option value='3' selected='selected'>3</option><option value='4'>4</option><option value='5'>5</option><option value='6'>6</option><option value='7'>7</option><option value='8'>8</option><option value='9'>9</option><option value='10'>10</option><option value='15'>15</option><option value='20'>20</option><option value='25'>25</option><option value='30'>30</option><option value='35'>35</option><option value='40'>40</option></select></td></tr><tr><td class='label'>space:</td><td class='ctrl'><select name='ignorews' onchange='this.form.submit();'><option value='0' selected='selected'>include</option><option value='1'>ignore</option></select></td></tr><tr><td class='label'>mode:</td><td class='ctrl'><select name='dt' onchange='this.form.submit();'><option value='0' selected='selected'>unified</option><option value='1'>ssdiff</option><option value='2'>stat only</option></select></td></tr><tr><td/><td class='ctrl'><noscript><input type='submit' value='reload'/></noscript></td></tr></table></form></div><table summary='commit info' class='commit-info'>
<tr><th>author</th><td>Linus Torvalds &lt;torvalds@linux-foundation.org&gt;</td><td class='right'>2016-12-25 14:30:04 -0800</td></tr>
<tr><th>committer</th><td>Linus Torvalds &lt;torvalds@linux-foundation.org&gt;</td><td class='right'>2016-12-25 14:30:04 -0800</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/include/math-emu/op-common.h?h=nds-private-remove&amp;id=3ddc76dfc786cc6f87852693227fb0b1f124f807'>3ddc76dfc786cc6f87852693227fb0b1f124f807</a> (<a href='/cgit.cgi/linux/net-next.git/patch/include/math-emu/op-common.h?id=3ddc76dfc786cc6f87852693227fb0b1f124f807'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?h=nds-private-remove&amp;id=3ddc76dfc786cc6f87852693227fb0b1f124f807'>8192b4721e05cf6823087f9696db8c0c8f144b02</a> /<a href='/cgit.cgi/linux/net-next.git/tree/include/math-emu/op-common.h?h=nds-private-remove&amp;id=3ddc76dfc786cc6f87852693227fb0b1f124f807'>include/math-emu/op-common.h</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/include/math-emu/op-common.h?h=nds-private-remove&amp;id=b272f732f888d4cf43c943a40c9aaa836f9b7431'>b272f732f888d4cf43c943a40c9aaa836f9b7431</a> (<a href='/cgit.cgi/linux/net-next.git/diff/include/math-emu/op-common.h?h=nds-private-remove&amp;id=3ddc76dfc786cc6f87852693227fb0b1f124f807&amp;id2=b272f732f888d4cf43c943a40c9aaa836f9b7431'>diff</a>)</td></tr><tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/include/math-emu/op-common.h?h=nds-private-remove&amp;id=1f3a8e49d8f28f498b8694464623ac20aebfe62a'>1f3a8e49d8f28f498b8694464623ac20aebfe62a</a> (<a href='/cgit.cgi/linux/net-next.git/diff/include/math-emu/op-common.h?h=nds-private-remove&amp;id=3ddc76dfc786cc6f87852693227fb0b1f124f807&amp;id2=1f3a8e49d8f28f498b8694464623ac20aebfe62a'>diff</a>)</td></tr></table>
<div class='commit-subject'>Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip</div><div class='commit-msg'>Pull timer type cleanups from Thomas Gleixner:
 "This series does a tree wide cleanup of types related to
  timers/timekeeping.

   - Get rid of cycles_t and use a plain u64. The type is not really
     helpful and caused more confusion than clarity

   - Get rid of the ktime union. The union has become useless as we use
     the scalar nanoseconds storage unconditionally now. The 32bit
     timespec alike storage got removed due to the Y2038 limitations
     some time ago.

     That leaves the odd union access around for no reason. Clean it up.

  Both changes have been done with coccinelle and a small amount of
  manual mopping up"

* 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  ktime: Get rid of ktime_equal()
  ktime: Cleanup ktime_set() usage
  ktime: Get rid of the union
  clocksource: Use a plain u64 instead of cycle_t
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?h=nds-private-remove&amp;id=3ddc76dfc786cc6f87852693227fb0b1f124f807'>Diffstat</a> (limited to 'include/math-emu/op-common.h')</div><table summary='diffstat' class='diffstat'>