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-rw-r--r--package/busybox/patches/510-awx.patch1624
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
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-02 20:04:17 +0000