Upgrade busybox to 1.7.2

- clean up insmod crap
- add some lineno/programname fixes for awx
- clean up awk getopt stuff
- remove unnecessary patches



git-svn-id: svn://svn.openwrt.org/openwrt/trunk@9130 3c298f89-4303-0410-b956-a3cf2f4a3e73

1 files changed, 1624 insertions, 0 deletions

diff --git a/package/busybox/patches/510-awx.patch b/package/busybox/patches/510-awx.patch
new file mode 100644
index 0000000000..571b32397d
--- /dev/null
+++ b/package/busybox/patches/510-awx.patch
@@ -0,0 +1,1624 @@
+Index: busybox-1.7.2/editors/awk.c
+===================================================================
+--- busybox-1.7.2.orig/editors/awk.c	2007-10-05 01:39:50.073293533 +0200
++++ busybox-1.7.2/editors/awk.c	2007-10-05 02:16:42.539374788 +0200
+@@ -33,6 +33,11 @@
+ /* these flags are static, don't change them when value is changed */
+ #define	VF_DONTTOUCH    (VF_ARRAY | VF_SPECIAL | VF_WALK | VF_CHILD | VF_DIRTY)
+ 
++#ifdef CONFIG_AWX
++#define fputs(s, stream) fputs_hook(s, stream)
++static inline int fputs_hook (__const char *__restrict __s, FILE *__restrict __stream);
++#endif
++
+ /* Variable */
+ typedef struct var_s {
+ 	unsigned type;            /* flags */
+@@ -54,9 +59,14 @@
+ } chain;
+ 
+ /* Function */
++typedef var *(*awk_cfunc)(var *res, var *args, int nargs);
+ typedef struct func_s {
+ 	unsigned nargs;
+-	struct chain_s body;
++	enum { AWKFUNC, CFUNC } type;
++	union {
++		awk_cfunc cfunc;
++		struct chain_s body;
++	} x;
+ } func;
+ 
+ /* I/O stream */
+@@ -1400,7 +1410,8 @@
+ 			next_token(TC_FUNCTION);
+ 			g_pos++;
+ 			f = newfunc(t_string);
+-			f->body.first = NULL;
++			f->type = AWKFUNC;
++			f->x.body.first = NULL;
+ 			f->nargs = 0;
+ 			while (next_token(TC_VARIABLE | TC_SEQTERM) & TC_VARIABLE) {
+ 				v = findvar(ahash, t_string);
+@@ -1409,7 +1420,7 @@
+ 				if (next_token(TC_COMMA | TC_SEQTERM) & TC_SEQTERM)
+ 					break;
+ 			}
+-			seq = &(f->body);
++			seq = &(f->x.body);
+ 			chain_group();
+ 			clear_array(ahash);
+ 
+@@ -2372,7 +2383,8 @@
+ 			break;
+ 
+ 		case XC( OC_FUNC ):
+-			if (!op->r.f->body.first)
++			if ((op->r.f->type == AWKFUNC) &&
++				!op->r.f->x.body.first)
+ 				syntax_error(EMSG_UNDEF_FUNC);
+ 
+ 			X.v = R.v = nvalloc(op->r.f->nargs+1);
+@@ -2389,7 +2401,10 @@
+ 			fnargs = X.v;
+ 
+ 			L.s = g_progname;
+-			res = evaluate(op->r.f->body.first, res);
++			if (op->r.f->type == AWKFUNC)
++				res = evaluate(op->r.f->x.body.first, res);
++			else if (op->r.f->type == CFUNC)
++				res = op->r.f->x.cfunc(res, fnargs, op->r.f->nargs);
+ 			g_progname = L.s;
+ 
+ 			nvfree(fnargs);
+@@ -2753,6 +2768,13 @@
+ }
+ 
+ int awk_main(int argc, char **argv);
++int awx_main(int argc, char **argv);
++
++#ifdef CONFIG_AWX
++static int is_awx = 0;
++#include "awx.c"
++#endif
++
+ int awk_main(int argc, char **argv)
+ {
+ 	unsigned opt;
+@@ -2817,6 +2839,11 @@
+ 			*s1 = '=';
+ 		}
+ 	}
++
++#ifdef CONFIG_AWX
++	do_awx(argc, argv);
++#endif
++
+ 	opt_complementary = "v::f::";
+ 	opt = getopt32(argv, "F:v:f:W:", &opt_F, &opt_v, &opt_f, &opt_W);
+ 	argv += optind;
+Index: busybox-1.7.2/editors/awx.c
+===================================================================
+--- /dev/null	1970-01-01 00:00:00.000000000 +0000
++++ busybox-1.7.2/editors/awx.c	2007-10-05 02:10:16.393369582 +0200
+@@ -0,0 +1,636 @@
++/*
++ * awk web extension
++ *
++ * Copyright (C) 2007 by Felix Fietkau <nbd@openwrt.org>
++ *
++ * Licensed under the GPL v2 or later, see the file LICENSE in this tarball.
++ */
++
++#include <cgi.h>
++#include <glob.h>
++#include "awx_parser.h"
++
++#define LINE_BUF 2048
++#define HASH_MAX	1536
++#define TR_START	"@TR<<"
++#define TR_END		">>"
++#define MAX_TR	32
++
++#undef fputs
++
++static xhash *lstr = NULL;
++static xhash *formvar = NULL;
++static int lang_inuse = 0;
++
++/* look up a translation symbol from the hash */
++static inline const char *translate_lookup(char *str)
++{
++	char *name, *def, *p;
++	hash_item *hi;
++	var *v;
++
++	def = name = str;
++	if (((p = strchr(str, '|')) != NULL)
++		|| ((p = strchr(str, '#')) != NULL)) {
++		def = p + 1;
++		*p = 0;
++	}
++	
++	hi = hash_search(lstr, name);
++	if (!hi)
++		return def;
++	
++	v = &hi->data.v;
++
++	return getvar_s(v);
++}
++
++/* look for translation markers in the line and return the translated string */
++static char *translate_line(char *line)
++{
++	const char *tok[MAX_TR * 3];
++	char *l, *p, *p2 = NULL, *res;
++	int len = 0, _pos = 0, i, tr_abort = 0;
++	static char *backlog = NULL;
++
++	if (backlog && line) {
++		backlog = xrealloc(backlog, strlen(backlog) + strlen(line) + 1);
++		sprintf(backlog + strlen(backlog), line);
++		l = backlog;
++	} else {
++		l = line;
++	}
++
++	while (l != NULL) {
++		if ((p = strstr(l, TR_START)) == NULL) {
++			len += strlen((tok[_pos++] = l));
++			break;
++		}
++
++		p2 = strstr(p, TR_END);
++		if (p2 == NULL) {
++			p2 = xstrdup(l);
++			tr_abort = 1;
++			break;
++		}
++
++		*p = 0;
++		len += strlen((tok[_pos++] = l));
++		*p2 = 0;
++		len += strlen((tok[_pos++] = translate_lookup(p + strlen(TR_START))));
++
++		l = p2;
++		l += strlen(TR_END);
++	}
++	len++;
++
++	p = xmalloc(len + 1);
++	*p = 0;
++	res = p;
++	for (i = 0; i < _pos; i++) {
++		strcat(p, tok[i]);
++		p += strlen(tok[i]);
++	}
++	if (backlog) {
++		free(backlog);
++		backlog = NULL;
++	}
++	if (tr_abort && p2)
++		backlog = p2;
++	
++	return res;
++}
++
++/* hook for intercepting awk's use of puts. used for running all printed strings
++ * through the translation system */
++static inline int fputs_hook (__const char *__restrict __s, FILE *__restrict __stream)
++{
++	if (lang_inuse && (__stream == stdout)) {
++		int ret;
++		char *str;
++	
++		str = translate_line((char *) __s);
++		ret = fputs(str, __stream);
++		free(str);
++
++		return ret;
++	}
++
++	return fputs(__s, __stream);
++}
++
++static var *init_lang(var *res, var *args, int nargs)
++{
++	if (!lstr)
++		lstr = hash_init();
++
++	lang_inuse = 1;
++	return res;
++}
++
++
++/* load and parse language file */
++static void load_lang_file(char *file)
++{
++	FILE *f;
++	char *b, *name, *value;
++	char buf1[LINE_BUF];
++
++	if ((f = fopen(file, "r")) == NULL)
++		return;
++
++	while (!feof(f) && (fgets(buf1, LINE_BUF - 1, f) != NULL)) {
++		b = buf1;
++		if (*b == '#')
++			continue; /* skip comments */
++
++		while (isspace(*b))
++			b++; /* skip leading spaces */
++		if (!*b)
++			continue;
++		
++		name = b;
++		if ((b = strstr(name, "=>")) == NULL)
++			continue; /* separator not found */
++
++		value = b + 2;
++		if (!*value)
++			continue;
++		
++		*b = 0;
++		for (b--; isspace(*b); b--)
++			*b = 0; /* remove trailing spaces */
++		
++		while (isspace(*value))
++			value++; /* skip leading spaces */
++
++		for (b = value + strlen(value) - 1; isspace(*b); b--)
++			*b = 0; /* remove trailing spaces */
++		
++		if (!*value)
++			continue;
++
++		setvar_s(findvar(lstr,name), value);
++	}
++
++	fclose(f);
++}
++
++static var *load_lang(var *res, var *args, int nargs)
++{
++	const char *langfmt = "/usr/lib/webif/lang/%s.txt";
++	char lbuf[LINE_BUF];
++	const char *lang;
++
++	if (!lang_inuse)
++		init_lang(res, args, nargs);
++	
++	lang = getvar_s(args);
++	if (!lang || !strcmp(lang, ""))
++		return res;
++
++	sprintf(lbuf, langfmt, lang);
++	load_lang_file(lbuf);
++
++	return res;	
++}
++		
++/* read the contents of an entire file */
++static char *get_file(const char *fname)
++{
++	FILE *F;
++	char *s = NULL;
++	int i, j, flen;
++
++	F = fopen(fname, "r");
++	if (!F) {
++		return NULL;
++	}
++
++	if (fseek(F, 0, SEEK_END) == 0) {
++		flen = ftell(F);
++		s = (char *)xmalloc(flen+4);
++		fseek(F, 0, SEEK_SET);
++		i = 1 + fread(s+1, 1, flen, F);
++	} else {
++		for (i=j=1; j>0; i+=j) {
++			s = (char *)xrealloc(s, i+4096);
++			j = fread(s+i, 1, 4094, F);
++		}
++	}
++
++	s[i] = '\0';
++	fclose(F);
++	return s;
++}
++
++
++/* parse_include():
++ * 
++ * taken from parse_program from awk.c
++ * END{} is not parsed here, and BEGIN{} is executed immediately
++ */
++static void parse_include(char *p)
++{
++	uint32_t tclass;
++	chain *initseq = NULL;
++	chain tmp;
++	func *f;
++	var *v, *tv;
++
++	tv = nvalloc(1);
++	memset(&tmp, 0, sizeof(tmp));
++	g_pos = p;
++	t_lineno = 1;
++	while ((tclass = next_token(TC_EOF | TC_OPSEQ |
++				TC_OPTERM | TC_BEGIN | TC_FUNCDECL)) != TC_EOF) {
++		if (tclass & TC_OPTERM)
++			continue;
++
++		seq = &tmp;
++		if (tclass & TC_BEGIN) {
++			initseq = xzalloc(sizeof(chain));
++			seq = initseq;
++			chain_group();
++		} else if (tclass & TC_FUNCDECL) {
++			next_token(TC_FUNCTION);
++			g_pos++;
++			f = newfunc(t_string);
++			f->type = AWKFUNC;
++			f->x.body.first = NULL;
++			f->nargs = 0;
++			while (next_token(TC_VARIABLE | TC_SEQTERM) & TC_VARIABLE) {
++				v = findvar(ahash, t_string);
++				v->x.aidx = (f->nargs)++;
++
++				if (next_token(TC_COMMA | TC_SEQTERM) & TC_SEQTERM)
++					break;
++			}
++			seq = &(f->x.body);
++			chain_group();
++			clear_array(ahash);
++		}
++	}
++	if (initseq && initseq->first)
++		tv = evaluate(initseq->first, tv);
++	nvfree(tv);
++}
++
++
++/* include an awk file and run its BEGIN{} section */
++static xhash *includes = NULL;
++static void include_file(const char *filename)
++{
++	char *s;
++	var *v;
++	int oldlnr = g_lineno;
++	const char *oldprg = g_progname;
++
++	if (!includes)
++		includes = hash_init();
++	
++	/* find out if the file has been included already */
++	v = findvar(includes, filename);
++	if (istrue(v))
++		return;
++	setvar_s(v, "1");
++
++	/* read include file */
++	s = get_file(filename);
++	if (!s) {
++		fprintf(stderr, "Could not open file.\n");
++		return;
++	}
++	g_lineno = 1;
++	g_progname = xstrdup(filename);
++	parse_include(s+1);
++	free(s);
++	g_lineno = oldlnr;
++	g_progname = oldprg;
++}
++
++static var *include(var *res, var *args, int nargs)
++{
++	const char *s;
++
++	s = getvar_s(args);
++	if (s && (strlen(s) > 0))
++		include_file(s);
++
++	return res;
++}
++
++/* parse an awk expression */
++static var *parse_awk(char *str, var *tv)
++{
++	chain body;
++	node *n;
++
++	memset(&body, 0, sizeof(body));
++	g_pos = str;
++	seq = &body;
++	
++	/* end of expression, assume that there's going to be a free byte
++	 * at the end of the string that can be used for the ')' */
++	strcat(str + strlen(str), "}");
++	n = parse_expr(TC_GRPTERM);
++	if (!n)
++		return NULL;
++
++	return evaluate(n, tv);
++}
++
++static inline void print_translate(char *s)
++{
++	char *str = s;
++	if (lang_inuse)
++		str = translate_line(s);
++	fputs(str, stdout);
++	fflush(stdout);
++	if (lang_inuse)
++		free(str);
++}
++
++static void render_element(struct template_cb *tcb, struct template_element *e)
++{
++	var *v;
++	char *s, *s2;
++	int i;
++	
++	if (!e || !e->var)
++		return;
++	g_lineno = e->line;
++	switch (e->t) {
++		case T_TEXT:
++			s = malloc(strlen(e->var) + 2);
++			strcpy(s, e->var);
++			print_translate(s);
++			free(s);
++			break;
++		case T_CODE:
++			s = malloc(strlen(e->var) + 2);
++			strcpy(s, e->var);
++			v = nvalloc(1);
++			s2 = strdup(getvar_s(parse_awk(s, v)));
++			nvfree(v);
++			print_translate(s2);
++			free(s);
++			free(s2);
++			break;
++		case T_IF:
++			s = malloc(strlen(e->var) + 2);
++			strcpy(s, e->var);
++			v = nvalloc(1);
++			i = istrue(parse_awk(s, v));
++			nvfree(v);
++			free(s);
++
++			if (i)
++				execute_template(tcb, e->sub);
++			else if (e->sub2)
++				execute_template(tcb, e->sub2);
++			break;
++		case T_FOR: {
++				v = newvar(e->var);
++				hashwalk_init(v, iamarray(findvar(vhash, e->in)));
++				while (hashwalk_next(v)) {
++					execute_template(tcb, e->sub);
++				}
++				clrvar(v);
++			}
++			break;
++		default:
++			break;
++	}
++}
++
++/* awk method render(), which opens a template file and processes all awk ssi calls */
++static void render_file(const char *filename)
++{
++	struct template_cb tcb;
++	struct template_element *e;
++	FILE *f;
++	const char *oldprg = g_progname;
++	int oldlnr = g_lineno;
++	
++	if (!filename)
++		return;
++
++	f = fopen(filename, "r");
++	if (!f)
++		return;
++	
++	g_progname = xstrdup(filename);
++	g_lineno = 1;
++	memset(&tcb, 0, sizeof(tcb));
++	tcb.handle_element = render_element;
++	e = parse_template(&tcb, f);
++	execute_template(&tcb, e);
++	free_template(&tcb, e);
++	fclose(f);
++	g_progname = oldprg;
++	g_lineno = oldlnr;
++}
++
++static var *render(var *res, var *args, int nargs)
++{
++	const char *s;
++
++	s = getvar_s(args);
++	if (!s)
++		return res;
++
++	render_file(s);
++	
++	return res;
++}
++		
++/* Call render, but only if this function hasn't been called already */
++static int layout_rendered = 0;
++static var *render_layout(var *res, var *args, int nargs)
++{
++	if (layout_rendered)
++		return res;
++	layout_rendered = 1;
++	return render(res, args, nargs);
++}
++
++/* registers a global c function for the awk interpreter */
++static void register_cfunc(const char *name, awk_cfunc cfunc, int nargs)
++{
++	func *f;
++
++	f = newfunc(name);
++	f->type = CFUNC;
++	f->x.cfunc = cfunc;
++	f->nargs = nargs;
++}
++
++static void putvar(vartype type, char *name, char *value)
++{
++	if (type != FORM_VAR)
++		return;
++
++	setvar_u(findvar(formvar, name), value);
++}
++
++static const char *cgi_getvar(const char *name)
++{
++	if (!formvar) {
++		formvar = hash_init();
++		cgi_init(putvar);
++	}
++
++	if (!formvar || !name)
++		return NULL;
++	
++	return getvar_s(findvar(formvar, name));
++}
++
++/* function call for accessing cgi form variables */
++static var *getvar(var *res, var *args, int nargs)
++{
++	const char *s, *svar;
++
++	s = getvar_s(args);
++	if (!s)
++		return res;
++	
++	svar = cgi_getvar(s);
++	if (!svar)
++		return res;
++
++	setvar_u(res, svar);
++
++	return res;
++}
++
++/* call an awk function without arguments by string reference */
++static var *call(var *res, var *args, int nargs)
++{
++	const char *s = getvar_s(args);
++	func *f;
++
++	if (!s)
++		goto done;
++	
++	f = newfunc(s);
++	if (f && f->type == AWKFUNC && f->x.body.first)
++		return evaluate(f->x.body.first, res);
++
++done:
++	return res;
++}
++
++
++static int run_awxscript(char *name)
++{
++	var tv, *layout, *action;
++	char *tmp, *s = NULL;
++
++	zero_out_var(&tv);
++	g_progname = name;
++
++	/* read the main controller source */
++	s = get_file(g_progname);
++	if (!s) {
++		fprintf(stderr, "Could not open file\n");
++		return 1;
++	}
++	parse_program(s+1);
++	free(s);
++
++
++	/* set some defaults for ACTION and LAYOUT, which will have special meaning */
++	layout = newvar("LAYOUT");
++	setvar_s(layout, "views/layout.ahtml");
++
++	/* run the BEGIN {} block */
++	evaluate(beginseq.first, &tv);
++
++	action = newvar("ACTION");
++	if (!(strlen(getvar_s(action)) > 0)) {
++		tmp = (char *) cgi_getvar("action");
++		if (!tmp || (strlen(tmp) <= 0))
++			tmp = strdup("default");
++
++		setvar_p(action, tmp);
++	}
++	
++	/* call the action (precedence: begin block override > cgi parameter > "default") */
++	tmp = xmalloc(strlen(getvar_s(action)) + 7);
++	sprintf(tmp, "handle_%s", getvar_s(action));
++	setvar_s(action, tmp);
++	call(&tv, action, 1);
++	free(tmp);
++
++	/* render the selected layout, will do nothing if render_layout has been called from awk */
++	render_layout(&tv, layout, 1);
++
++	return 0;
++}
++
++
++/* main awx processing function. called from awk_main() */
++static int do_awx(int argc, char **argv)
++{
++	int ret = -1;
++	var tv;
++	int i, c;
++	char **args = argv;
++	
++	zero_out_var(&tv);
++
++	/* register awk C callbacks */
++	register_cfunc("getvar", getvar, 1);
++	register_cfunc("render", render, 1);
++	register_cfunc("render_layout", render_layout, 1);
++	register_cfunc("call", call, 1);
++	register_cfunc("include", include, 1);
++	register_cfunc("init_lang", init_lang, 1);
++	register_cfunc("load_lang", load_lang, 1);
++
++	if (!is_awx)
++		return 0;
++
++	/* fill in ARGV array */
++	setvar_i(intvar[ARGC], argc + 1);
++	setari_u(intvar[ARGV], 0, "awx");
++	i = 0;
++	while (*args)
++		setari_u(intvar[ARGV], ++i, *args++);
++	
++	while((c = getopt(argc, argv, "i:f:")) != EOF) {
++		switch(c) {
++			case 'i':
++				g_progname = optarg;
++				include_file(optarg);
++				break;
++			case 'f':
++				ret = 0;
++				g_progname = optarg;
++				render_file(optarg);
++				goto done;
++		}
++	}
++	argc -= optind;
++	argv += optind;
++
++	if (argc < 1) {
++		fprintf(stderr, "Invalid argument.\n");
++		goto done;
++	}
++
++	ret = run_awxscript(*argv);
++
++done:
++	exit(ret);
++}
++
++/* entry point for awx applet */
++int awx_main(int argc, char **argv)
++{
++	is_awx = 1;
++	return awk_main(argc, argv);
++}
++
+Index: busybox-1.7.2/editors/awx_parser.h
+===================================================================
+--- /dev/null	1970-01-01 00:00:00.000000000 +0000
++++ busybox-1.7.2/editors/awx_parser.h	2007-10-05 01:43:59.487506840 +0200
+@@ -0,0 +1,38 @@
++#ifndef __TEMPLATE_PARSER_H
++#define __TEMPLATE_PARSER_H
++
++enum type {
++	T_TEXT,
++	T_FOR,
++	T_IF,
++	T_CODE
++};
++
++struct template_element;
++struct template_cb;
++
++struct template_cb {
++	void *(*prepare_code)(struct template_element *);
++	void (*handle_element)(struct template_cb *, struct template_element *);
++	void (*free_code)(struct template_element *);
++};
++
++struct template_element {
++	enum type t;
++	char *var;
++	char *in;
++	int line;
++	void *priv;
++	struct template_element *parent;
++	struct template_element *sub;
++	struct template_element *sub2;
++	struct template_element *prev;
++	struct template_element *next;
++};
++
++
++struct template_element *parse_template(struct template_cb *cb, FILE *in);
++void execute_template(struct template_cb *cb, struct template_element *e);
++void free_template(struct template_cb *cb, struct template_element *e);
++
++#endif
+Index: busybox-1.7.2/editors/awx_parser.l
+===================================================================
+--- /dev/null	1970-01-01 00:00:00.000000000 +0000
++++ busybox-1.7.2/editors/awx_parser.l	2007-10-05 01:43:59.547510259 +0200
+@@ -0,0 +1,302 @@
++%{
++#include <stdio.h>
++#include <string.h>
++#include <stdlib.h>
++#include "busybox.h"
++#include "awx_parser.h"
++
++enum {
++	S_INIT,
++	S_TEXT,
++	S_CODE,
++	S_IF_START,
++	S_FOR_START,
++	S_FOR_IN,
++	S_END,
++	S_ELSE,
++	S_EOF
++}; 
++int state;
++
++#undef DEBUG
++#ifdef DEBUG
++char *statestr[] = {
++	[S_INIT] = "S_INIT",
++	[S_TEXT] = "S_TEXT",
++	[S_CODE] = "S_CODE",
++	[S_IF_START] = "S_IF_START",
++	[S_FOR_START] = "S_FOR_START",
++	[S_FOR_IN] = "S_FOR_IN",
++	[S_EOF] = "S_EOF"
++};
++
++char *typestr[] = {
++	[T_TEXT] = "T_TEXT",
++	[T_FOR] = "T_FOR",
++	[T_IF] = "T_IF",
++	[T_CODE] = "T_CODE"
++};
++#endif
++
++static struct template_cb *parse_cb;
++static struct template_element *cur, *head;
++static char *textbuf;
++static unsigned int buflen;
++static unsigned int buf_offset;
++static int _lnr = 0;
++
++static void buf_realloc(void)
++{
++	buflen *= 2;
++	textbuf = xrealloc(textbuf, buflen);
++}
++
++static void parse_error(char *str)
++{
++	fprintf(stderr, "Parse error%s%s\n", (str ? ": " : "!"), (str ?: ""));
++	exit(255);
++}
++
++
++static struct template_element *new_template_element(struct template_element *parent)
++{
++	struct template_element *ptr;
++	
++	ptr = xzalloc(sizeof(struct template_element));
++	ptr->parent = parent;
++	return ptr;
++}
++
++static inline void next_template_element(void)
++{
++	cur->next = new_template_element(cur->parent);
++	cur->next->prev = cur;
++	cur = cur->next;
++}
++
++static void addtext(char *text)
++{
++	while(buf_offset + strlen(text) + 1 > buflen)
++		buf_realloc();
++
++	buf_offset += sprintf(&textbuf[buf_offset], "%s", text);
++}
++
++static void set_state(int newstate)
++{
++	char *ptr;
++
++#ifdef DEBUG
++	static int _rec = 0;
++	fprintf(stderr, "DEBUG(%d): %s => %s: %s\n", _rec, statestr[state], statestr[newstate], textbuf);
++#endif
++	ptr = xstrdup(textbuf);
++	if (state == S_FOR_IN)
++		cur->in = ptr;
++	else
++		cur->var = ptr;
++
++	if (parse_cb && (cur->t == T_CODE) && parse_cb->prepare_code)
++		parse_cb->prepare_code(cur);
++
++	buf_offset = 0;
++	*textbuf = 0;
++
++	switch(newstate) {
++#if 0
++		case S_EOF:
++			if (cur->parent)
++				parse_error();
++			break;
++#endif
++		case S_FOR_START:
++			if (ptr || !cur->prev)
++				next_template_element();
++			cur->t = T_FOR;
++			break;
++		case S_IF_START:
++			if (ptr || !cur->prev)
++				next_template_element();
++			cur->t = T_IF;
++			break;
++		case S_ELSE:
++			cur = cur->parent;
++			if (!cur)
++				parse_error("'@else' without parent element");
++			cur->sub2 = new_template_element(cur);
++			cur = cur->sub2;
++			newstate = S_TEXT;
++			break;
++		case S_END:
++#ifdef DEBUG
++			_rec--;
++#endif
++			cur = cur->parent;
++			if (!cur) 
++				parse_error("'@end' without parent element");
++
++			next_template_element();
++			cur->t = T_TEXT;
++			newstate = S_TEXT;
++			break;
++		case S_TEXT:
++			switch (cur->t) {
++				case T_CODE:
++					next_template_element();
++					break;
++				case T_IF:
++				case T_FOR:
++#ifdef DEBUG
++					_rec++;
++#endif
++					cur->sub = new_template_element(cur);
++					cur = cur->sub;
++					break;
++				default:
++					break;
++			}
++			cur->t = T_TEXT;
++			break;
++		case S_CODE:
++			if (ptr || !cur->prev)
++				next_template_element();
++			cur->t = T_CODE;
++			break;
++		default:
++			break;
++	}
++	cur->line = _lnr;
++	state = newstate;
++}
++
++%}
++
++%%
++"<%"[ \n\t]*"@if"[ \n\t]+ {
++	if (state == S_TEXT) 
++		set_state(S_IF_START);
++	else
++		REJECT;
++}
++
++"<%"[ \n\t]*"@for"[ \n\t]+ {
++	if (state == S_TEXT) 
++		set_state(S_FOR_START);
++	else
++		REJECT;
++}
++
++[ \n\t]+"in"[ \n\t]+ {
++	if (state == S_FOR_START)
++		set_state(S_FOR_IN);
++	else
++		REJECT;
++}
++
++"<%"[ \n\t]*"@end"[ \n\t]*%> {
++	if (state != S_TEXT)
++		REJECT;
++	set_state(S_END);
++}
++
++"<%"[ \n\t]*"@else"[ \n\t]*%> {
++	if (state != S_TEXT)
++		REJECT;
++	set_state(S_ELSE);
++}
++
++"<%" {
++	if (state != S_TEXT) 
++		parse_error("'<%' cannot be nested");
++	set_state(S_CODE);
++}
++
++[ \n\t]"%>" {
++	if (state == S_TEXT)
++		REJECT;
++	set_state(S_TEXT);
++}
++
++\n {
++	_lnr++;
++	if (state == S_TEXT)
++		addtext(yytext);
++}
++.	{
++	addtext(yytext);
++}
++
++
++%%
++
++
++void execute_template(struct template_cb *cb, struct template_element *e)
++{
++	static int rec = 0;
++
++	while (e) {
++#ifdef DEBUG
++		fprintf(stderr, "DEBUG: execute(%d)\t%s\n", rec, typestr[e->t]);
++#endif
++		rec++;
++		if (cb->handle_element)
++			cb->handle_element(cb, e);
++		rec--;
++		e = e->next;
++	}
++}
++
++int yywrap()
++{
++	set_state(S_EOF);
++	return 1;
++}
++
++struct template_element *parse_template(struct template_cb *cb, FILE *in)
++{
++	_lnr = 1;
++	buf_offset = 0;
++	state = S_TEXT;
++	parse_cb = cb;
++	
++	buflen = 4096;
++	textbuf = xzalloc(buflen);
++
++	head = xzalloc(sizeof(struct template_element));
++	head->t = T_TEXT;
++	cur = head;
++
++	yyin = in;
++	yylex();
++
++	return head;
++}
++
++void free_template(struct template_cb *cb, struct template_element *e)
++{
++	struct template_element *next;
++	return;
++	if (!e)
++		return;
++		
++	switch (e->t) {
++		case T_CODE:
++			if (cb->free_code)
++				cb->free_code(e);
++			break;
++		case T_FOR:
++		case T_IF:
++			free_template(cb, e->sub);
++			break;
++		default:
++			break;
++	}
++	if (e->var)
++		free(e->var);
++	if (e->in)
++		free(e->in);
++		
++	next = e->next;
++	free(e);
++	return free_template(cb, next);
++}
+Index: busybox-1.7.2/editors/Config.in
+===================================================================
+--- busybox-1.7.2.orig/editors/Config.in	2007-10-05 01:39:50.097294897 +0200
++++ busybox-1.7.2/editors/Config.in	2007-10-05 01:43:59.583512308 +0200
+@@ -12,6 +12,13 @@
+ 	  Awk is used as a pattern scanning and processing language.  This is
+ 	  the BusyBox implementation of that programming language.
+ 
++config AWX
++	bool "Enable awx (awk web extension)"
++	default n
++	depends on AWK
++	help
++	  awx - awk web extension
++
+ config FEATURE_AWK_MATH
+ 	bool "Enable math functions (requires libm)"
+ 	default y
+Index: busybox-1.7.2/editors/Kbuild
+===================================================================
+--- busybox-1.7.2.orig/editors/Kbuild	2007-10-05 01:39:50.105295361 +0200
++++ busybox-1.7.2/editors/Kbuild	2007-10-05 01:43:59.627514818 +0200
+@@ -12,3 +12,12 @@
+ lib-$(CONFIG_PATCH)     += patch.o
+ lib-$(CONFIG_SED)       += sed.o
+ lib-$(CONFIG_VI)        += vi.o
++lib-$(CONFIG_AWX)		+= awx_parser.o
++
++editors/awx_parser.c: editors/awx_parser.l editors/awx_parser.h
++	@flex $<
++	@mv lex.yy.c $@
++
++editors/awx_parser.o: editors/awx_parser.c FORCE
++	$(call cmd,force_checksrc)
++	$(call if_changed_rule,cc_o_c)
+Index: busybox-1.7.2/include/applets.h
+===================================================================
+--- busybox-1.7.2.orig/include/applets.h	2007-10-05 01:43:59.203490652 +0200
++++ busybox-1.7.2/include/applets.h	2007-10-05 01:43:59.647515958 +0200
+@@ -76,6 +76,7 @@
+ USE_ARPING(APPLET(arping, _BB_DIR_USR_BIN, _BB_SUID_NEVER))
+ USE_ASH(APPLET_NOUSAGE(ash, ash, _BB_DIR_BIN, _BB_SUID_NEVER))
+ USE_AWK(APPLET_NOEXEC(awk, awk, _BB_DIR_USR_BIN, _BB_SUID_NEVER, awk))
++USE_AWX(APPLET_NOUSAGE(awx, awx, _BB_DIR_USR_BIN, _BB_SUID_NEVER)) 
+ USE_BASENAME(APPLET_NOFORK(basename, basename, _BB_DIR_USR_BIN, _BB_SUID_NEVER, basename))
+ USE_BBCONFIG(APPLET(bbconfig, _BB_DIR_BIN, _BB_SUID_NEVER))
+ //USE_BBSH(APPLET(bbsh, _BB_DIR_BIN, _BB_SUID_NEVER))
+Index: busybox-1.7.2/include/cgi.h
+===================================================================
+--- /dev/null	1970-01-01 00:00:00.000000000 +0000
++++ busybox-1.7.2/include/cgi.h	2007-10-05 01:43:59.667517098 +0200
+@@ -0,0 +1,8 @@
++#ifndef CGI_H
++#define CGI_H
++
++typedef enum { FORM_VAR, COOKIE_VAR } vartype;
++typedef void (*var_handler) (vartype, char *, char *);
++int cgi_init(var_handler);
++
++#endif
+Index: busybox-1.7.2/libbb/cgi.c
+===================================================================
+--- /dev/null	1970-01-01 00:00:00.000000000 +0000
++++ busybox-1.7.2/libbb/cgi.c	2007-10-05 01:43:59.707519378 +0200
+@@ -0,0 +1,457 @@
++/* --------------------------------------------------------------------------
++ * functions for processing cgi form data
++ * Copyright (C) 2007 by Felix Fietkau <nbd@openwrt.org>
++ *
++ * parts taken from the core of haserl.cgi - a poor-man's php for embedded/lightweight environments
++ * $Id: haserl.c,v 1.13 2004/11/10 17:59:35 nangel Exp $ 
++ * Copyright (c) 2003,2004    Nathan Angelacos (nangel@users.sourceforge.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; 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.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with this program; if not, write to the Free Software
++ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
++ *
++ * -----
++ * The x2c() and unescape_url() routines were taken from  
++ *  http://www.jmarshall.com/easy/cgi/getcgi.c.txt 
++ * 
++ * The comments in that text file state:
++ *
++ ***  Written in 1996 by James Marshall, james@jmarshall.com, except 
++ ***  that the x2c() and unescape_url() routines were lifted directly 
++ ***  from NCSA's sample program util.c, packaged with their HTTPD. 
++ ***     For the latest, see http://www.jmarshall.com/easy/cgi/ 
++ * -----
++ *
++ ------------------------------------------------------------------------- */
++
++#include <stdio.h>
++#include <unistd.h>
++#include <time.h>
++#include <sys/mman.h>
++#include <sys/types.h>
++#include <sys/wait.h>
++#include <sys/stat.h>
++#include <sys/fcntl.h>
++#include <stdlib.h>
++#include <string.h>
++#include <cgi.h>
++
++#ifndef MAX_UPLOAD_KB
++#define MAX_UPLOAD_KB 2048
++#endif
++#define TEMPDIR "/tmp"
++
++static int global_upload_size = 0;
++static int ReadMimeEncodedInput(char *qs);
++static var_handler do_putvar = NULL;
++
++/*
++ * Convert 2 char hex string into char it represents
++ * (from http://www.jmarshall.com/easy/cgi)
++ */
++static char x2c (char *what) {
++	char digit;
++	
++	digit=(what[0] >= 'A' ? ((what[0] & 0xdf) - 'A')+10 : (what[0] - '0'));
++	digit *=16;
++	digit+=(what[1] >= 'A' ? ((what[1] & 0xdf) - 'A')+10 : (what[1] - '0'));
++
++	return digit;
++}
++
++/*
++ * unsescape %xx to the characters they represent 
++ */
++
++static void unescape_url (char *url) {
++	int  i,j;
++
++	for (i=0, j=0; url[j]; ++i, ++j) {
++		if ((url[i] = url[j]) == '%') {
++			url[i] = x2c(&url[j+1]);
++			j+=2;	
++		}
++	}
++	url[i]='\0';
++}
++
++static inline void put_var(vartype type, char *var)
++{
++	char *val;
++	
++	if (!do_putvar)
++		return;
++
++	val = strchr(var, '=');
++	if (!val)
++		return;
++	
++	*val = 0;
++	val++;
++	do_putvar(type, var, val);
++	
++	return;
++}
++
++
++/* CookieVars ()
++ * if HTTP_COOKIE is passed as an environment variable,
++ * attempt to parse its values into environment variables
++ */
++static void CookieVars (void)
++{
++	char *qs;
++	char *token;
++
++	if (getenv("HTTP_COOKIE") != NULL)
++		qs=strdup(getenv("HTTP_COOKIE"));
++	else
++		return;
++	
++	/** split on; to extract name value pairs */
++	token=strtok(qs, ";");
++	while (token) {
++		// skip leading spaces 
++		while ( token[0] == ' ' ) 
++			token++;
++		
++		put_var(COOKIE_VAR, token);
++		
++		token = strtok(NULL, ";");
++	}
++	free (qs);
++}
++
++/* 
++ * Read cgi variables from query string, and put in environment
++ */
++static int ReadCGIQueryString (void) 
++{
++	char *qs;
++	char *token;
++	int i;
++
++	if (getenv("QUERY_STRING") != NULL)
++		qs=strdup(getenv("QUERY_STRING"));
++	else
++		return 0;
++	
++	/* change plusses into spaces */
++	for (i=0; qs[i]; i++ ) { if (qs[i] == '+' ) { qs[i] = ' ';} };
++
++	/** split on & and ; to extract name value pairs */
++	
++	token=strtok(qs, "&;");
++	while (token) {
++		unescape_url(token);
++		put_var(FORM_VAR, token);
++		token=strtok(NULL, "&;");
++	}
++	free(qs);
++
++	return 0;
++}
++
++
++/* 
++ * Read cgi variables from stdin (for POST queries)
++ * (oh... and if its mime-encoded file upload, we save the
++ * file to /tmp; and return the name of the tmp file
++ * the cgi script is responsible for disposing of the tmp file
++ */
++
++static int ReadCGIPOSTValues (void) {
++	char *qs;
++	int content_length;
++	int i;
++	char *token;
++
++
++ 	if (getenv("CONTENT_LENGTH") == NULL) 
++		return(-1);
++	else
++		content_length = atoi(getenv("CONTENT_LENGTH"));
++	
++	/* protect ourselves from 20GB file uploads */
++	if (content_length > MAX_UPLOAD_KB * 1024 ) {
++		/* But we need to finish reading the content */
++	 	while (	fread( &i, sizeof(int), 1, stdin) == 1 );
++		return -1;
++	}
++ 
++ 	if (!(qs=malloc(content_length+1)))
++		return -1;
++
++	/* set the buffer to null, so that a browser messing with less 
++  	   data than content_length won't buffer underrun us */
++	memset(qs, 0 ,content_length+1);
++
++	if ((!fread(qs,content_length,1,stdin) &&
++		(content_length > 0) 
++		&& !feof(stdin))) {
++			
++		free(qs);
++		return -1;
++	}
++
++	if (getenv("CONTENT_TYPE") && (strncasecmp(getenv("CONTENT_TYPE"), "multipart/form-data", 19) == 0)) {
++		/* This is a mime request, we need to go to the mime handler */
++		i=ReadMimeEncodedInput(qs);
++		free(qs);
++			
++		return i;
++	}
++
++	/* change plusses into spaces */
++	for (i=0; qs[i]; i++ ) { if (qs[i] == '+' ) { qs[i] = ' ';} };
++
++	/** split on & and ; to extract name value pairs */
++	token=strtok(qs, "&;");
++	while (token) {
++		unescape_url(token);
++		put_var(FORM_VAR, token);
++		token=strtok(NULL, "&;");
++	}
++	
++	free(qs);
++	
++	return 0;
++}
++
++/*
++ *  LineToStr - Scans char and replaces the first "\n" with a "\0";
++ *  If it finds a "\r", it does that to; (fix DOS brokennes) returns
++ *  the length of the string;
++ */
++static int LineToStr (char *string, size_t max) {
++	size_t offset=0;
++
++	while ((offset < max) && (string[offset] != '\n') && (string[offset] != '\r'))
++		offset++;
++
++	if (string[offset] == '\r') {
++		string[offset]='\0';
++		offset++;
++	}
++	if (string[offset] == '\n') {
++		string[offset]='\0';
++		offset++;
++	}
++
++	return offset;
++}
++
++
++/*
++ * ReadMimeEncodedInput - handles things that are mime encoded
++ * takes a pointer to the input; returns 0 on success
++ */
++
++static int ReadMimeEncodedInput(char *qs) 
++{
++	char 	*boundary;
++	char	*ct;
++	int	i;
++	int	datastart;
++ 	size_t	cl;
++	size_t	offset;
++	char    *envname;
++	char	*filename;
++	char 	*ptr;
++	int	line;
++	char 	tmpname[] = TEMPDIR "/XXXXXX";
++	int	fd;
++	/* we should only get here if the content type was set. Segfaults happen
++	   if Content_Type is null */
++
++	if (getenv("CONTENT_LENGTH") == NULL)
++		/* No content length?! */
++		return(-1);
++
++	cl=atoi(getenv("CONTENT_LENGTH"));
++	
++	/* we do this 'cause we can't mess with the real env. variable - it would
++	 * overwrite the environment - I tried.
++	 */
++	i=strlen(getenv("CONTENT_TYPE"))+1;
++	ct=malloc(i);
++	if (ct)
++		memcpy(ct, getenv("CONTENT_TYPE"), i);
++	else
++		return(-1);
++	
++	i=(int) NULL;
++ 	if (ct != NULL) {
++		while (i < strlen(ct) && (strncmp("boundary=", &ct[i], 9) != 0)) 
++			i++;
++	}
++	if (i == strlen(ct)) {
++		/* no boundary informaiton found */
++		free(ct);
++		return -1;
++	}
++	boundary=&ct[i+7];
++	/* add two leading -- to the boundary */
++	boundary[0]='-';
++	boundary[1]='-';
++	
++	/* begin the big loop.  Look for:
++		--boundary
++		Content-Disposition: form-data;  name="......." 
++		....
++		<blank line>
++		content
++		--boundary
++		Content-Disposition: form-data; name="....." filename="....."
++		...
++		<blank line>
++		--boundary--
++		eof
++	*/
++
++	offset=0;
++	while (offset < cl) {
++		/* first look for boundary */
++		while ((offset < cl) && (memcmp(&qs[offset], boundary, strlen(boundary)))) 
++			offset++;
++
++		/* if we got here and we ran off the end, its an error 		*/
++		if (offset >= cl) { 
++			free(ct);
++			return -1;
++		}
++
++		/* if the two characters following the boundary are --, 	*/ 
++		/* then we are at the end, exit 				*/
++		if (memcmp(&qs[offset+strlen(boundary)], "--", 2) == 0) {
++			offset+=2;
++			break;
++		}
++		/* find where the offset should be */
++		line=LineToStr(&qs[offset], cl-offset);
++		offset+=line;
++				
++		/* Now we're going to look for content-disposition		*/ 
++		line=LineToStr(&qs[offset], cl-offset);
++		if (strncasecmp(&qs[offset], "Content-Disposition", 19) != 0) {
++			/* hmm... content disposition was not where we expected it */
++			free(ct);
++			return -1;
++		}
++		/* Found it, so let's go find "name="				*/
++	 	if (!(envname=strstr(&qs[offset], "name="))) {
++			/* now name= is missing?!  				*/
++			free(ct);
++			return(-1);
++		} else
++			envname+=6;
++
++		/* is there a filename tag? 					*/
++		if ((filename=strstr(&qs[offset], "filename="))!= NULL)
++			filename+=10;
++		else
++			filename=NULL;
++		
++		/* make envname and filename ASCIIZ				*/
++		for (i=0; (envname[i] != '"') && (envname[i] != '\0'); i++);
++		
++		envname[i] = '\0';
++		if (filename) {
++			for (i=0; (filename[i] != '"') && (filename[i] != '\0'); i++);
++			filename[i] = '\0';
++		}
++		offset+=line;
++		
++		/* Ok, by some miracle, we have the name; let's skip till we	*/
++		/* come to a blank line						*/
++		line=LineToStr(&qs[offset], cl-offset);
++		while (strlen(&qs[offset]) > 1) {
++			offset+=line;
++			line=LineToStr(&qs[offset], cl-offset);
++		}
++		offset+=line;
++		datastart=offset;
++		/* And we go back to looking for a boundary */
++		while ((offset < cl) && (memcmp(&qs[offset], boundary, strlen(boundary))))
++			offset++;
++
++		/* strip [cr] lf */
++		if ((qs[offset-1] == '\n') && (qs[offset-2] == '\r'))
++			offset-=2; 
++		else
++			offset-=1;
++
++		qs[offset]=0;
++
++		/* ok, at this point, we know where the name is, and we know    */
++		/* where the content is... we have to do one of two things      */
++		/* based on whether its a file or not				*/
++		if (filename==NULL) { /* its not a file, so its easy		*/
++			/* just jam the content after the name		*/
++			memcpy(&envname[strlen(envname)+1], &qs[datastart], offset-datastart+1);
++			envname[strlen(envname)]='=';
++			put_var(FORM_VAR, envname);
++		} else {	/* handle the fileupload case		*/
++			if (offset-datastart) {  /* only if they uploaded */
++				if ( global_upload_size == 0 ) {
++					return -1;
++				}
++				/*  stuff in the filename */
++				ptr= calloc ( sizeof (char), strlen(envname)+strlen(filename)+2+5 );
++				sprintf (ptr, "%s_name=%s", envname, filename);
++				put_var(FORM_VAR, ptr);
++				free(ptr);
++						
++				fd=mkstemp(tmpname);
++				
++				if (fd == -1)
++					return(-1);
++
++				write(fd, &qs[datastart], offset-datastart);
++				close(fd);
++				ptr= calloc (sizeof(char), strlen(envname)+strlen(tmpname)+2);
++				sprintf (ptr, "%s=%s", envname, tmpname);
++				put_var(FORM_VAR, ptr);
++				free(ptr);
++			}
++		}
++	}
++	free(ct);
++	return 0;
++}
++
++	
++/*-------------------------------------------------------------------------
++ *
++ * Main 
++ *
++ *------------------------------------------------------------------------*/
++
++int cgi_init(var_handler putvar_handler)
++{
++	int	retval = 0;
++	
++	do_putvar = putvar_handler;
++
++	/* Read the current environment into our chain */
++	CookieVars();
++	if (getenv("REQUEST_METHOD")) {
++		if (strcasecmp(getenv("REQUEST_METHOD"), "GET") == 0)
++			retval = ReadCGIQueryString();
++
++		if (strcasecmp(getenv("REQUEST_METHOD"), "POST") == 0)
++			retval = ReadCGIPOSTValues();
++	}
++
++	return retval;
++} 
+Index: busybox-1.7.2/libbb/Kbuild
+===================================================================
+--- busybox-1.7.2.orig/libbb/Kbuild	2007-10-05 01:43:59.387501141 +0200
++++ busybox-1.7.2/libbb/Kbuild	2007-10-05 01:43:59.751521884 +0200
+@@ -99,6 +99,7 @@
+ lib-y += xreadlink.o
+ 
+ # conditionally compiled objects:
++lib-$(CONFIG_AWX) += cgi.o
+ lib-$(CONFIG_FEATURE_MOUNT_LOOP) += loop.o
+ lib-$(CONFIG_LOSETUP) += loop.o
+ lib-$(CONFIG_FEATURE_MTAB_SUPPORT) += mtab.o