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add iw utility (untested)
[openwrt.git] / package / busybox / patches / 510-awx.patch
1 Index: busybox-1.8.1/editors/awk.c
2 ===================================================================
3 --- busybox-1.8.1.orig/editors/awk.c 2007-11-10 16:55:07.032260312 +0100
4 +++ busybox-1.8.1/editors/awk.c 2007-11-10 17:07:04.493146078 +0100
5 @@ -33,6 +33,11 @@
6 /* these flags are static, don't change them when value is changed */
7 #define VF_DONTTOUCH (VF_ARRAY | VF_SPECIAL | VF_WALK | VF_CHILD | VF_DIRTY)
8
9 +#ifdef CONFIG_AWX
10 +#define fputs(s, stream) fputs_hook(s, stream)
11 +static inline int fputs_hook (__const char *__restrict __s, FILE *__restrict __stream);
12 +#endif
13 +
14 /* Variable */
15 typedef struct var_s {
16 unsigned type; /* flags */
17 @@ -54,9 +59,14 @@
18 } chain;
19
20 /* Function */
21 +typedef var *(*awk_cfunc)(var *res, var *args, int nargs);
22 typedef struct func_s {
23 unsigned nargs;
24 - struct chain_s body;
25 + enum { AWKFUNC, CFUNC } type;
26 + union {
27 + awk_cfunc cfunc;
28 + struct chain_s body;
29 + } x;
30 } func;
31
32 /* I/O stream */
33 @@ -1400,7 +1410,8 @@
34 next_token(TC_FUNCTION);
35 g_pos++;
36 f = newfunc(t_string);
37 - f->body.first = NULL;
38 + f->type = AWKFUNC;
39 + f->x.body.first = NULL;
40 f->nargs = 0;
41 while (next_token(TC_VARIABLE | TC_SEQTERM) & TC_VARIABLE) {
42 v = findvar(ahash, t_string);
43 @@ -1409,7 +1420,7 @@
44 if (next_token(TC_COMMA | TC_SEQTERM) & TC_SEQTERM)
45 break;
46 }
47 - seq = &(f->body);
48 + seq = &(f->x.body);
49 chain_group();
50 clear_array(ahash);
51
52 @@ -2372,7 +2383,8 @@
53 break;
54
55 case XC( OC_FUNC ):
56 - if (!op->r.f->body.first)
57 + if ((op->r.f->type == AWKFUNC) &&
58 + !op->r.f->x.body.first)
59 syntax_error(EMSG_UNDEF_FUNC);
60
61 X.v = R.v = nvalloc(op->r.f->nargs+1);
62 @@ -2389,7 +2401,10 @@
63 fnargs = X.v;
64
65 L.s = g_progname;
66 - res = evaluate(op->r.f->body.first, res);
67 + if (op->r.f->type == AWKFUNC)
68 + res = evaluate(op->r.f->x.body.first, res);
69 + else if (op->r.f->type == CFUNC)
70 + res = op->r.f->x.cfunc(res, fnargs, op->r.f->nargs);
71 g_progname = L.s;
72
73 nvfree(fnargs);
74 @@ -2753,6 +2768,12 @@
75 }
76
77 int awk_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
78 +int awx_main(int argc, char **argv);
79 +
80 +#ifdef CONFIG_AWX
81 +static int is_awx = 0;
82 +#include "awx.c"
83 +#endif
84 int awk_main(int argc, char **argv)
85 {
86 unsigned opt;
87 @@ -2817,6 +2838,11 @@
88 *s1 = '=';
89 }
90 }
91 +
92 +#ifdef CONFIG_AWX
93 + do_awx(argc, argv);
94 +#endif
95 +
96 opt_complementary = "v::f::";
97 opt = getopt32(argv, "F:v:f:W:", &opt_F, &opt_v, &opt_f, &opt_W);
98 argv += optind;
99 Index: busybox-1.8.1/editors/awx.c
100 ===================================================================
101 --- /dev/null 1970-01-01 00:00:00.000000000 +0000
102 +++ busybox-1.8.1/editors/awx.c 2007-11-10 17:06:19.258568308 +0100
103 @@ -0,0 +1,636 @@
104 +/*
105 + * awk web extension
106 + *
107 + * Copyright (C) 2007 by Felix Fietkau <nbd@openwrt.org>
108 + *
109 + * Licensed under the GPL v2 or later, see the file LICENSE in this tarball.
110 + */
111 +
112 +#include <cgi.h>
113 +#include <glob.h>
114 +#include "awx_parser.h"
115 +
116 +#define LINE_BUF 2048
117 +#define HASH_MAX 1536
118 +#define TR_START "@TR<<"
119 +#define TR_END ">>"
120 +#define MAX_TR 32
121 +
122 +#undef fputs
123 +
124 +static xhash *lstr = NULL;
125 +static xhash *formvar = NULL;
126 +static int lang_inuse = 0;
127 +
128 +/* look up a translation symbol from the hash */
129 +static inline const char *translate_lookup(char *str)
130 +{
131 + char *name, *def, *p;
132 + hash_item *hi;
133 + var *v;
134 +
135 + def = name = str;
136 + if (((p = strchr(str, '|')) != NULL)
137 + || ((p = strchr(str, '#')) != NULL)) {
138 + def = p + 1;
139 + *p = 0;
140 + }
141 +
142 + hi = hash_search(lstr, name);
143 + if (!hi)
144 + return def;
145 +
146 + v = &hi->data.v;
147 +
148 + return getvar_s(v);
149 +}
150 +
151 +/* look for translation markers in the line and return the translated string */
152 +static char *translate_line(char *line)
153 +{
154 + const char *tok[MAX_TR * 3];
155 + char *l, *p, *p2 = NULL, *res;
156 + int len = 0, _pos = 0, i, tr_abort = 0;
157 + static char *backlog = NULL;
158 +
159 + if (backlog && line) {
160 + backlog = xrealloc(backlog, strlen(backlog) + strlen(line) + 1);
161 + sprintf(backlog + strlen(backlog), line);
162 + l = backlog;
163 + } else {
164 + l = line;
165 + }
166 +
167 + while (l != NULL) {
168 + if ((p = strstr(l, TR_START)) == NULL) {
169 + len += strlen((tok[_pos++] = l));
170 + break;
171 + }
172 +
173 + p2 = strstr(p, TR_END);
174 + if (p2 == NULL) {
175 + p2 = xstrdup(l);
176 + tr_abort = 1;
177 + break;
178 + }
179 +
180 + *p = 0;
181 + len += strlen((tok[_pos++] = l));
182 + *p2 = 0;
183 + len += strlen((tok[_pos++] = translate_lookup(p + strlen(TR_START))));
184 +
185 + l = p2;
186 + l += strlen(TR_END);
187 + }
188 + len++;
189 +
190 + p = xmalloc(len + 1);
191 + *p = 0;
192 + res = p;
193 + for (i = 0; i < _pos; i++) {
194 + strcat(p, tok[i]);
195 + p += strlen(tok[i]);
196 + }
197 + if (backlog) {
198 + free(backlog);
199 + backlog = NULL;
200 + }
201 + if (tr_abort && p2)
202 + backlog = p2;
203 +
204 + return res;
205 +}
206 +
207 +/* hook for intercepting awk's use of puts. used for running all printed strings
208 + * through the translation system */
209 +static inline int fputs_hook (__const char *__restrict __s, FILE *__restrict __stream)
210 +{
211 + if (lang_inuse && (__stream == stdout)) {
212 + int ret;
213 + char *str;
214 +
215 + str = translate_line((char *) __s);
216 + ret = fputs(str, __stream);
217 + free(str);
218 +
219 + return ret;
220 + }
221 +
222 + return fputs(__s, __stream);
223 +}
224 +
225 +static var *init_lang(var *res, var *args, int nargs)
226 +{
227 + if (!lstr)
228 + lstr = hash_init();
229 +
230 + lang_inuse = 1;
231 + return res;
232 +}
233 +
234 +
235 +/* load and parse language file */
236 +static void load_lang_file(char *file)
237 +{
238 + FILE *f;
239 + char *b, *name, *value;
240 + char buf1[LINE_BUF];
241 +
242 + if ((f = fopen(file, "r")) == NULL)
243 + return;
244 +
245 + while (!feof(f) && (fgets(buf1, LINE_BUF - 1, f) != NULL)) {
246 + b = buf1;
247 + if (*b == '#')
248 + continue; /* skip comments */
249 +
250 + while (isspace(*b))
251 + b++; /* skip leading spaces */
252 + if (!*b)
253 + continue;
254 +
255 + name = b;
256 + if ((b = strstr(name, "=>")) == NULL)
257 + continue; /* separator not found */
258 +
259 + value = b + 2;
260 + if (!*value)
261 + continue;
262 +
263 + *b = 0;
264 + for (b--; isspace(*b); b--)
265 + *b = 0; /* remove trailing spaces */
266 +
267 + while (isspace(*value))
268 + value++; /* skip leading spaces */
269 +
270 + for (b = value + strlen(value) - 1; isspace(*b); b--)
271 + *b = 0; /* remove trailing spaces */
272 +
273 + if (!*value)
274 + continue;
275 +
276 + setvar_s(findvar(lstr,name), value);
277 + }
278 +
279 + fclose(f);
280 +}
281 +
282 +static var *load_lang(var *res, var *args, int nargs)
283 +{
284 + const char *langfmt = "/usr/lib/webif/lang/%s.txt";
285 + char lbuf[LINE_BUF];
286 + const char *lang;
287 +
288 + if (!lang_inuse)
289 + init_lang(res, args, nargs);
290 +
291 + lang = getvar_s(args);
292 + if (!lang || !strcmp(lang, ""))
293 + return res;
294 +
295 + sprintf(lbuf, langfmt, lang);
296 + load_lang_file(lbuf);
297 +
298 + return res;
299 +}
300 +
301 +/* read the contents of an entire file */
302 +static char *get_file(const char *fname)
303 +{
304 + FILE *F;
305 + char *s = NULL;
306 + int i, j, flen;
307 +
308 + F = fopen(fname, "r");
309 + if (!F) {
310 + return NULL;
311 + }
312 +
313 + if (fseek(F, 0, SEEK_END) == 0) {
314 + flen = ftell(F);
315 + s = (char *)xmalloc(flen+4);
316 + fseek(F, 0, SEEK_SET);
317 + i = 1 + fread(s+1, 1, flen, F);
318 + } else {
319 + for (i=j=1; j>0; i+=j) {
320 + s = (char *)xrealloc(s, i+4096);
321 + j = fread(s+i, 1, 4094, F);
322 + }
323 + }
324 +
325 + s[i] = '\0';
326 + fclose(F);
327 + return s;
328 +}
329 +
330 +
331 +/* parse_include():
332 + *
333 + * taken from parse_program from awk.c
334 + * END{} is not parsed here, and BEGIN{} is executed immediately
335 + */
336 +static void parse_include(char *p)
337 +{
338 + uint32_t tclass;
339 + chain *initseq = NULL;
340 + chain tmp;
341 + func *f;
342 + var *v, *tv;
343 +
344 + tv = nvalloc(1);
345 + memset(&tmp, 0, sizeof(tmp));
346 + g_pos = p;
347 + t_lineno = 1;
348 + while ((tclass = next_token(TC_EOF | TC_OPSEQ |
349 + TC_OPTERM | TC_BEGIN | TC_FUNCDECL)) != TC_EOF) {
350 + if (tclass & TC_OPTERM)
351 + continue;
352 +
353 + seq = &tmp;
354 + if (tclass & TC_BEGIN) {
355 + initseq = xzalloc(sizeof(chain));
356 + seq = initseq;
357 + chain_group();
358 + } else if (tclass & TC_FUNCDECL) {
359 + next_token(TC_FUNCTION);
360 + g_pos++;
361 + f = newfunc(t_string);
362 + f->type = AWKFUNC;
363 + f->x.body.first = NULL;
364 + f->nargs = 0;
365 + while (next_token(TC_VARIABLE | TC_SEQTERM) & TC_VARIABLE) {
366 + v = findvar(ahash, t_string);
367 + v->x.aidx = (f->nargs)++;
368 +
369 + if (next_token(TC_COMMA | TC_SEQTERM) & TC_SEQTERM)
370 + break;
371 + }
372 + seq = &(f->x.body);
373 + chain_group();
374 + clear_array(ahash);
375 + }
376 + }
377 + if (initseq && initseq->first)
378 + tv = evaluate(initseq->first, tv);
379 + nvfree(tv);
380 +}
381 +
382 +
383 +/* include an awk file and run its BEGIN{} section */
384 +static xhash *includes = NULL;
385 +static void include_file(const char *filename)
386 +{
387 + char *s;
388 + var *v;
389 + int oldlnr = g_lineno;
390 + const char *oldprg = g_progname;
391 +
392 + if (!includes)
393 + includes = hash_init();
394 +
395 + /* find out if the file has been included already */
396 + v = findvar(includes, filename);
397 + if (istrue(v))
398 + return;
399 + setvar_s(v, "1");
400 +
401 + /* read include file */
402 + s = get_file(filename);
403 + if (!s) {
404 + fprintf(stderr, "Could not open file.\n");
405 + return;
406 + }
407 + g_lineno = 1;
408 + g_progname = xstrdup(filename);
409 + parse_include(s+1);
410 + free(s);
411 + g_lineno = oldlnr;
412 + g_progname = oldprg;
413 +}
414 +
415 +static var *include(var *res, var *args, int nargs)
416 +{
417 + const char *s;
418 +
419 + s = getvar_s(args);
420 + if (s && (strlen(s) > 0))
421 + include_file(s);
422 +
423 + return res;
424 +}
425 +
426 +/* parse an awk expression */
427 +static var *parse_awk(char *str, var *tv)
428 +{
429 + chain body;
430 + node *n;
431 +
432 + memset(&body, 0, sizeof(body));
433 + g_pos = str;
434 + seq = &body;
435 +
436 + /* end of expression, assume that there's going to be a free byte
437 + * at the end of the string that can be used for the ')' */
438 + strcat(str + strlen(str), "}");
439 + n = parse_expr(TC_GRPTERM);
440 + if (!n)
441 + return NULL;
442 +
443 + return evaluate(n, tv);
444 +}
445 +
446 +static inline void print_translate(char *s)
447 +{
448 + char *str = s;
449 + if (lang_inuse)
450 + str = translate_line(s);
451 + fputs(str, stdout);
452 + fflush(stdout);
453 + if (lang_inuse)
454 + free(str);
455 +}
456 +
457 +static void render_element(struct template_cb *tcb, struct template_element *e)
458 +{
459 + var *v;
460 + char *s, *s2;
461 + int i;
462 +
463 + if (!e || !e->var)
464 + return;
465 + g_lineno = e->line;
466 + switch (e->t) {
467 + case T_TEXT:
468 + s = malloc(strlen(e->var) + 2);
469 + strcpy(s, e->var);
470 + print_translate(s);
471 + free(s);
472 + break;
473 + case T_CODE:
474 + s = malloc(strlen(e->var) + 2);
475 + strcpy(s, e->var);
476 + v = nvalloc(1);
477 + s2 = strdup(getvar_s(parse_awk(s, v)));
478 + nvfree(v);
479 + print_translate(s2);
480 + free(s);
481 + free(s2);
482 + break;
483 + case T_IF:
484 + s = malloc(strlen(e->var) + 2);
485 + strcpy(s, e->var);
486 + v = nvalloc(1);
487 + i = istrue(parse_awk(s, v));
488 + nvfree(v);
489 + free(s);
490 +
491 + if (i)
492 + execute_template(tcb, e->sub);
493 + else if (e->sub2)
494 + execute_template(tcb, e->sub2);
495 + break;
496 + case T_FOR: {
497 + v = newvar(e->var);
498 + hashwalk_init(v, iamarray(findvar(vhash, e->in)));
499 + while (hashwalk_next(v)) {
500 + execute_template(tcb, e->sub);
501 + }
502 + clrvar(v);
503 + }
504 + break;
505 + default:
506 + break;
507 + }
508 +}
509 +
510 +/* awk method render(), which opens a template file and processes all awk ssi calls */
511 +static void render_file(const char *filename)
512 +{
513 + struct template_cb tcb;
514 + struct template_element *e;
515 + FILE *f;
516 + const char *oldprg = g_progname;
517 + int oldlnr = g_lineno;
518 +
519 + if (!filename)
520 + return;
521 +
522 + f = fopen(filename, "r");
523 + if (!f)
524 + return;
525 +
526 + g_progname = xstrdup(filename);
527 + g_lineno = 1;
528 + memset(&tcb, 0, sizeof(tcb));
529 + tcb.handle_element = render_element;
530 + e = parse_template(&tcb, f);
531 + execute_template(&tcb, e);
532 + free_template(&tcb, e);
533 + fclose(f);
534 + g_progname = oldprg;
535 + g_lineno = oldlnr;
536 +}
537 +
538 +static var *render(var *res, var *args, int nargs)
539 +{
540 + const char *s;
541 +
542 + s = getvar_s(args);
543 + if (!s)
544 + return res;
545 +
546 + render_file(s);
547 +
548 + return res;
549 +}
550 +
551 +/* Call render, but only if this function hasn't been called already */
552 +static int layout_rendered = 0;
553 +static var *render_layout(var *res, var *args, int nargs)
554 +{
555 + if (layout_rendered)
556 + return res;
557 + layout_rendered = 1;
558 + return render(res, args, nargs);
559 +}
560 +
561 +/* registers a global c function for the awk interpreter */
562 +static void register_cfunc(const char *name, awk_cfunc cfunc, int nargs)
563 +{
564 + func *f;
565 +
566 + f = newfunc(name);
567 + f->type = CFUNC;
568 + f->x.cfunc = cfunc;
569 + f->nargs = nargs;
570 +}
571 +
572 +static void putvar(vartype type, char *name, char *value)
573 +{
574 + if (type != FORM_VAR)
575 + return;
576 +
577 + setvar_u(findvar(formvar, name), value);
578 +}
579 +
580 +static const char *cgi_getvar(const char *name)
581 +{
582 + if (!formvar) {
583 + formvar = hash_init();
584 + cgi_init(putvar);
585 + }
586 +
587 + if (!formvar || !name)
588 + return NULL;
589 +
590 + return getvar_s(findvar(formvar, name));
591 +}
592 +
593 +/* function call for accessing cgi form variables */
594 +static var *getvar(var *res, var *args, int nargs)
595 +{
596 + const char *s, *svar;
597 +
598 + s = getvar_s(args);
599 + if (!s)
600 + return res;
601 +
602 + svar = cgi_getvar(s);
603 + if (!svar)
604 + return res;
605 +
606 + setvar_u(res, svar);
607 +
608 + return res;
609 +}
610 +
611 +/* call an awk function without arguments by string reference */
612 +static var *call(var *res, var *args, int nargs)
613 +{
614 + const char *s = getvar_s(args);
615 + func *f;
616 +
617 + if (!s)
618 + goto done;
619 +
620 + f = newfunc(s);
621 + if (f && f->type == AWKFUNC && f->x.body.first)
622 + return evaluate(f->x.body.first, res);
623 +
624 +done:
625 + return res;
626 +}
627 +
628 +
629 +static int run_awxscript(char *name)
630 +{
631 + var tv, *layout, *action;
632 + char *tmp, *s = NULL;
633 +
634 + zero_out_var(&tv);
635 + g_progname = name;
636 +
637 + /* read the main controller source */
638 + s = get_file(g_progname);
639 + if (!s) {
640 + fprintf(stderr, "Could not open file\n");
641 + return 1;
642 + }
643 + parse_program(s+1);
644 + free(s);
645 +
646 +
647 + /* set some defaults for ACTION and LAYOUT, which will have special meaning */
648 + layout = newvar("LAYOUT");
649 + setvar_s(layout, "views/layout.ahtml");
650 +
651 + /* run the BEGIN {} block */
652 + evaluate(beginseq.first, &tv);
653 +
654 + action = newvar("ACTION");
655 + if (!(strlen(getvar_s(action)) > 0)) {
656 + tmp = (char *) cgi_getvar("action");
657 + if (!tmp || (strlen(tmp) <= 0))
658 + tmp = strdup("default");
659 +
660 + setvar_p(action, tmp);
661 + }
662 +
663 + /* call the action (precedence: begin block override > cgi parameter > "default") */
664 + tmp = xmalloc(strlen(getvar_s(action)) + 7);
665 + sprintf(tmp, "handle_%s", getvar_s(action));
666 + setvar_s(action, tmp);
667 + call(&tv, action, 1);
668 + free(tmp);
669 +
670 + /* render the selected layout, will do nothing if render_layout has been called from awk */
671 + render_layout(&tv, layout, 1);
672 +
673 + return 0;
674 +}
675 +
676 +
677 +/* main awx processing function. called from awk_main() */
678 +static int do_awx(int argc, char **argv)
679 +{
680 + int ret = -1;
681 + var tv;
682 + int i, c;
683 + char **args = argv;
684 +
685 + zero_out_var(&tv);
686 +
687 + /* register awk C callbacks */
688 + register_cfunc("getvar", getvar, 1);
689 + register_cfunc("render", render, 1);
690 + register_cfunc("render_layout", render_layout, 1);
691 + register_cfunc("call", call, 1);
692 + register_cfunc("include", include, 1);
693 + register_cfunc("init_lang", init_lang, 1);
694 + register_cfunc("load_lang", load_lang, 1);
695 +
696 + if (!is_awx)
697 + return 0;
698 +
699 + /* fill in ARGV array */
700 + setvar_i(intvar[ARGC], argc + 1);
701 + setari_u(intvar[ARGV], 0, "awx");
702 + i = 0;
703 + while (*args)
704 + setari_u(intvar[ARGV], ++i, *args++);
705 +
706 + while((c = getopt(argc, argv, "i:f:")) != EOF) {
707 + switch(c) {
708 + case 'i':
709 + g_progname = optarg;
710 + include_file(optarg);
711 + break;
712 + case 'f':
713 + ret = 0;
714 + g_progname = optarg;
715 + render_file(optarg);
716 + goto done;
717 + }
718 + }
719 + argc -= optind;
720 + argv += optind;
721 +
722 + if (argc < 1) {
723 + fprintf(stderr, "Invalid argument.\n");
724 + goto done;
725 + }
726 +
727 + ret = run_awxscript(*argv);
728 +
729 +done:
730 + exit(ret);
731 +}
732 +
733 +/* entry point for awx applet */
734 +int awx_main(int argc, char **argv)
735 +{
736 + is_awx = 1;
737 + return awk_main(argc, argv);
738 +}
739 +
740 Index: busybox-1.8.1/editors/awx_parser.h
741 ===================================================================
742 --- /dev/null 1970-01-01 00:00:00.000000000 +0000
743 +++ busybox-1.8.1/editors/awx_parser.h 2007-11-10 17:06:19.266568760 +0100
744 @@ -0,0 +1,38 @@
745 +#ifndef __TEMPLATE_PARSER_H
746 +#define __TEMPLATE_PARSER_H
747 +
748 +enum type {
749 + T_TEXT,
750 + T_FOR,
751 + T_IF,
752 + T_CODE
753 +};
754 +
755 +struct template_element;
756 +struct template_cb;
757 +
758 +struct template_cb {
759 + void *(*prepare_code)(struct template_element *);
760 + void (*handle_element)(struct template_cb *, struct template_element *);
761 + void (*free_code)(struct template_element *);
762 +};
763 +
764 +struct template_element {
765 + enum type t;
766 + char *var;
767 + char *in;
768 + int line;
769 + void *priv;
770 + struct template_element *parent;
771 + struct template_element *sub;
772 + struct template_element *sub2;
773 + struct template_element *prev;
774 + struct template_element *next;
775 +};
776 +
777 +
778 +struct template_element *parse_template(struct template_cb *cb, FILE *in);
779 +void execute_template(struct template_cb *cb, struct template_element *e);
780 +void free_template(struct template_cb *cb, struct template_element *e);
781 +
782 +#endif
783 Index: busybox-1.8.1/editors/awx_parser.l
784 ===================================================================
785 --- /dev/null 1970-01-01 00:00:00.000000000 +0000
786 +++ busybox-1.8.1/editors/awx_parser.l 2007-11-10 17:06:19.270568989 +0100
787 @@ -0,0 +1,302 @@
788 +%{
789 +#include <stdio.h>
790 +#include <string.h>
791 +#include <stdlib.h>
792 +#include "busybox.h"
793 +#include "awx_parser.h"
794 +
795 +enum {
796 + S_INIT,
797 + S_TEXT,
798 + S_CODE,
799 + S_IF_START,
800 + S_FOR_START,
801 + S_FOR_IN,
802 + S_END,
803 + S_ELSE,
804 + S_EOF
805 +};
806 +int state;
807 +
808 +#undef DEBUG
809 +#ifdef DEBUG
810 +char *statestr[] = {
811 + [S_INIT] = "S_INIT",
812 + [S_TEXT] = "S_TEXT",
813 + [S_CODE] = "S_CODE",
814 + [S_IF_START] = "S_IF_START",
815 + [S_FOR_START] = "S_FOR_START",
816 + [S_FOR_IN] = "S_FOR_IN",
817 + [S_EOF] = "S_EOF"
818 +};
819 +
820 +char *typestr[] = {
821 + [T_TEXT] = "T_TEXT",
822 + [T_FOR] = "T_FOR",
823 + [T_IF] = "T_IF",
824 + [T_CODE] = "T_CODE"
825 +};
826 +#endif
827 +
828 +static struct template_cb *parse_cb;
829 +static struct template_element *cur, *head;
830 +static char *textbuf;
831 +static unsigned int buflen;
832 +static unsigned int buf_offset;
833 +static int _lnr = 0;
834 +
835 +static void buf_realloc(void)
836 +{
837 + buflen *= 2;
838 + textbuf = xrealloc(textbuf, buflen);
839 +}
840 +
841 +static void parse_error(char *str)
842 +{
843 + fprintf(stderr, "Parse error%s%s\n", (str ? ": " : "!"), (str ?: ""));
844 + exit(255);
845 +}
846 +
847 +
848 +static struct template_element *new_template_element(struct template_element *parent)
849 +{
850 + struct template_element *ptr;
851 +
852 + ptr = xzalloc(sizeof(struct template_element));
853 + ptr->parent = parent;
854 + return ptr;
855 +}
856 +
857 +static inline void next_template_element(void)
858 +{
859 + cur->next = new_template_element(cur->parent);
860 + cur->next->prev = cur;
861 + cur = cur->next;
862 +}
863 +
864 +static void addtext(char *text)
865 +{
866 + while(buf_offset + strlen(text) + 1 > buflen)
867 + buf_realloc();
868 +
869 + buf_offset += sprintf(&textbuf[buf_offset], "%s", text);
870 +}
871 +
872 +static void set_state(int newstate)
873 +{
874 + char *ptr;
875 +
876 +#ifdef DEBUG
877 + static int _rec = 0;
878 + fprintf(stderr, "DEBUG(%d): %s => %s: %s\n", _rec, statestr[state], statestr[newstate], textbuf);
879 +#endif
880 + ptr = xstrdup(textbuf);
881 + if (state == S_FOR_IN)
882 + cur->in = ptr;
883 + else
884 + cur->var = ptr;
885 +
886 + if (parse_cb && (cur->t == T_CODE) && parse_cb->prepare_code)
887 + parse_cb->prepare_code(cur);
888 +
889 + buf_offset = 0;
890 + *textbuf = 0;
891 +
892 + switch(newstate) {
893 +#if 0
894 + case S_EOF:
895 + if (cur->parent)
896 + parse_error();
897 + break;
898 +#endif
899 + case S_FOR_START:
900 + if (ptr || !cur->prev)
901 + next_template_element();
902 + cur->t = T_FOR;
903 + break;
904 + case S_IF_START:
905 + if (ptr || !cur->prev)
906 + next_template_element();
907 + cur->t = T_IF;
908 + break;
909 + case S_ELSE:
910 + cur = cur->parent;
911 + if (!cur)
912 + parse_error("'@else' without parent element");
913 + cur->sub2 = new_template_element(cur);
914 + cur = cur->sub2;
915 + newstate = S_TEXT;
916 + break;
917 + case S_END:
918 +#ifdef DEBUG
919 + _rec--;
920 +#endif
921 + cur = cur->parent;
922 + if (!cur)
923 + parse_error("'@end' without parent element");
924 +
925 + next_template_element();
926 + cur->t = T_TEXT;
927 + newstate = S_TEXT;
928 + break;
929 + case S_TEXT:
930 + switch (cur->t) {
931 + case T_CODE:
932 + next_template_element();
933 + break;
934 + case T_IF:
935 + case T_FOR:
936 +#ifdef DEBUG
937 + _rec++;
938 +#endif
939 + cur->sub = new_template_element(cur);
940 + cur = cur->sub;
941 + break;
942 + default:
943 + break;
944 + }
945 + cur->t = T_TEXT;
946 + break;
947 + case S_CODE:
948 + if (ptr || !cur->prev)
949 + next_template_element();
950 + cur->t = T_CODE;
951 + break;
952 + default:
953 + break;
954 + }
955 + cur->line = _lnr;
956 + state = newstate;
957 +}
958 +
959 +%}
960 +
961 +%%
962 +"<%"[ \n\t]*"@if"[ \n\t]+ {
963 + if (state == S_TEXT)
964 + set_state(S_IF_START);
965 + else
966 + REJECT;
967 +}
968 +
969 +"<%"[ \n\t]*"@for"[ \n\t]+ {
970 + if (state == S_TEXT)
971 + set_state(S_FOR_START);
972 + else
973 + REJECT;
974 +}
975 +
976 +[ \n\t]+"in"[ \n\t]+ {
977 + if (state == S_FOR_START)
978 + set_state(S_FOR_IN);
979 + else
980 + REJECT;
981 +}
982 +
983 +"<%"[ \n\t]*"@end"[ \n\t]*%> {
984 + if (state != S_TEXT)
985 + REJECT;
986 + set_state(S_END);
987 +}
988 +
989 +"<%"[ \n\t]*"@else"[ \n\t]*%> {
990 + if (state != S_TEXT)
991 + REJECT;
992 + set_state(S_ELSE);
993 +}
994 +
995 +"<%" {
996 + if (state != S_TEXT)
997 + parse_error("'<%' cannot be nested");
998 + set_state(S_CODE);
999 +}
1000 +
1001 +[ \n\t]"%>" {
1002 + if (state == S_TEXT)
1003 + REJECT;
1004 + set_state(S_TEXT);
1005 +}
1006 +
1007 +\n {
1008 + _lnr++;
1009 + if (state == S_TEXT)
1010 + addtext(yytext);
1011 +}
1012 +. {
1013 + addtext(yytext);
1014 +}
1015 +
1016 +
1017 +%%
1018 +
1019 +
1020 +void execute_template(struct template_cb *cb, struct template_element *e)
1021 +{
1022 + static int rec = 0;
1023 +
1024 + while (e) {
1025 +#ifdef DEBUG
1026 + fprintf(stderr, "DEBUG: execute(%d)\t%s\n", rec, typestr[e->t]);
1027 +#endif
1028 + rec++;
1029 + if (cb->handle_element)
1030 + cb->handle_element(cb, e);
1031 + rec--;
1032 + e = e->next;
1033 + }
1034 +}
1035 +
1036 +int yywrap()
1037 +{
1038 + set_state(S_EOF);
1039 + return 1;
1040 +}
1041 +
1042 +struct template_element *parse_template(struct template_cb *cb, FILE *in)
1043 +{
1044 + _lnr = 1;
1045 + buf_offset = 0;
1046 + state = S_TEXT;
1047 + parse_cb = cb;
1048 +
1049 + buflen = 4096;
1050 + textbuf = xzalloc(buflen);
1051 +
1052 + head = xzalloc(sizeof(struct template_element));
1053 + head->t = T_TEXT;
1054 + cur = head;
1055 +
1056 + yyin = in;
1057 + yylex();
1058 +
1059 + return head;
1060 +}
1061 +
1062 +void free_template(struct template_cb *cb, struct template_element *e)
1063 +{
1064 + struct template_element *next;
1065 + return;
1066 + if (!e)
1067 + return;
1068 +
1069 + switch (e->t) {
1070 + case T_CODE:
1071 + if (cb->free_code)
1072 + cb->free_code(e);
1073 + break;
1074 + case T_FOR:
1075 + case T_IF:
1076 + free_template(cb, e->sub);
1077 + break;
1078 + default:
1079 + break;
1080 + }
1081 + if (e->var)
1082 + free(e->var);
1083 + if (e->in)
1084 + free(e->in);
1085 +
1086 + next = e->next;
1087 + free(e);
1088 + return free_template(cb, next);
1089 +}
1090 Index: busybox-1.8.1/editors/Config.in
1091 ===================================================================
1092 --- busybox-1.8.1.orig/editors/Config.in 2007-11-10 02:40:54.000000000 +0100
1093 +++ busybox-1.8.1/editors/Config.in 2007-11-10 17:06:19.274569218 +0100
1094 @@ -12,6 +12,13 @@
1095 Awk is used as a pattern scanning and processing language. This is
1096 the BusyBox implementation of that programming language.
1097
1098 +config AWX
1099 + bool "Enable awx (awk web extension)"
1100 + default n
1101 + depends on AWK
1102 + help
1103 + awx - awk web extension
1104 +
1105 config FEATURE_AWK_MATH
1106 bool "Enable math functions (requires libm)"
1107 default y
1108 Index: busybox-1.8.1/editors/Kbuild
1109 ===================================================================
1110 --- busybox-1.8.1.orig/editors/Kbuild 2007-11-10 02:40:54.000000000 +0100
1111 +++ busybox-1.8.1/editors/Kbuild 2007-11-10 17:06:19.278569448 +0100
1112 @@ -12,3 +12,12 @@
1113 lib-$(CONFIG_PATCH) += patch.o
1114 lib-$(CONFIG_SED) += sed.o
1115 lib-$(CONFIG_VI) += vi.o
1116 +lib-$(CONFIG_AWX) += awx_parser.o
1117 +
1118 +editors/awx_parser.c: editors/awx_parser.l editors/awx_parser.h
1119 + @flex $<
1120 + @mv lex.yy.c $@
1121 +
1122 +editors/awx_parser.o: editors/awx_parser.c FORCE
1123 + $(call cmd,force_checksrc)
1124 + $(call if_changed_rule,cc_o_c)
1125 Index: busybox-1.8.1/include/applets.h
1126 ===================================================================
1127 --- busybox-1.8.1.orig/include/applets.h 2007-11-10 17:03:38.957433264 +0100
1128 +++ busybox-1.8.1/include/applets.h 2007-11-10 17:06:19.282569674 +0100
1129 @@ -83,6 +83,7 @@
1130 USE_ARPING(APPLET(arping, _BB_DIR_USR_BIN, _BB_SUID_NEVER))
1131 USE_ASH(APPLET_NOUSAGE(ash, ash, _BB_DIR_BIN, _BB_SUID_NEVER))
1132 USE_AWK(APPLET_NOEXEC(awk, awk, _BB_DIR_USR_BIN, _BB_SUID_NEVER, awk))
1133 +USE_AWX(APPLET_NOUSAGE(awx, awx, _BB_DIR_USR_BIN, _BB_SUID_NEVER))
1134 USE_BASENAME(APPLET_NOFORK(basename, basename, _BB_DIR_USR_BIN, _BB_SUID_NEVER, basename))
1135 USE_BBCONFIG(APPLET(bbconfig, _BB_DIR_BIN, _BB_SUID_NEVER))
1136 //USE_BBSH(APPLET(bbsh, _BB_DIR_BIN, _BB_SUID_NEVER))
1137 Index: busybox-1.8.1/include/cgi.h
1138 ===================================================================
1139 --- /dev/null 1970-01-01 00:00:00.000000000 +0000
1140 +++ busybox-1.8.1/include/cgi.h 2007-11-10 17:06:19.282569674 +0100
1141 @@ -0,0 +1,8 @@
1142 +#ifndef CGI_H
1143 +#define CGI_H
1144 +
1145 +typedef enum { FORM_VAR, COOKIE_VAR } vartype;
1146 +typedef void (*var_handler) (vartype, char *, char *);
1147 +int cgi_init(var_handler);
1148 +
1149 +#endif
1150 Index: busybox-1.8.1/libbb/cgi.c
1151 ===================================================================
1152 --- /dev/null 1970-01-01 00:00:00.000000000 +0000
1153 +++ busybox-1.8.1/libbb/cgi.c 2007-11-10 17:06:19.282569674 +0100
1154 @@ -0,0 +1,457 @@
1155 +/* --------------------------------------------------------------------------
1156 + * functions for processing cgi form data
1157 + * Copyright (C) 2007 by Felix Fietkau <nbd@openwrt.org>
1158 + *
1159 + * parts taken from the core of haserl.cgi - a poor-man's php for embedded/lightweight environments
1160 + * $Id: haserl.c,v 1.13 2004/11/10 17:59:35 nangel Exp $
1161 + * Copyright (c) 2003,2004 Nathan Angelacos (nangel@users.sourceforge.net)
1162 + *
1163 + * This program is free software; you can redistribute it and/or modify
1164 + * it under the terms of the GNU General Public License as published by
1165 + * the Free Software Foundation; either version 2 of the License, or
1166 + * (at your option) any later version.
1167 + *
1168 + * This program is distributed in the hope that it will be useful,
1169 + * but WITHOUT ANY WARRANTY; without even the implied warranty of
1170 + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
1171 + * General Public License for more details.
1172 + *
1173 + * You should have received a copy of the GNU General Public License
1174 + * along with this program; if not, write to the Free Software
1175 + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
1176 + *
1177 + * -----
1178 + * The x2c() and unescape_url() routines were taken from
1179 + * http://www.jmarshall.com/easy/cgi/getcgi.c.txt
1180 + *
1181 + * The comments in that text file state:
1182 + *
1183 + *** Written in 1996 by James Marshall, james@jmarshall.com, except
1184 + *** that the x2c() and unescape_url() routines were lifted directly
1185 + *** from NCSA's sample program util.c, packaged with their HTTPD.
1186 + *** For the latest, see http://www.jmarshall.com/easy/cgi/
1187 + * -----
1188 + *
1189 + ------------------------------------------------------------------------- */
1190 +
1191 +#include <stdio.h>
1192 +#include <unistd.h>
1193 +#include <time.h>
1194 +#include <sys/mman.h>
1195 +#include <sys/types.h>
1196 +#include <sys/wait.h>
1197 +#include <sys/stat.h>
1198 +#include <sys/fcntl.h>
1199 +#include <stdlib.h>
1200 +#include <string.h>
1201 +#include <cgi.h>
1202 +
1203 +#ifndef MAX_UPLOAD_KB
1204 +#define MAX_UPLOAD_KB 2048
1205 +#endif
1206 +#define TEMPDIR "/tmp"
1207 +
1208 +static int global_upload_size = 0;
1209 +static int ReadMimeEncodedInput(char *qs);
1210 +static var_handler do_putvar = NULL;
1211 +
1212 +/*
1213 + * Convert 2 char hex string into char it represents
1214 + * (from http://www.jmarshall.com/easy/cgi)
1215 + */
1216 +static char x2c (char *what) {
1217 + char digit;
1218 +
1219 + digit=(what[0] >= 'A' ? ((what[0] & 0xdf) - 'A')+10 : (what[0] - '0'));
1220 + digit *=16;
1221 + digit+=(what[1] >= 'A' ? ((what[1] & 0xdf) - 'A')+10 : (what[1] - '0'));
1222 +
1223 + return digit;
1224 +}
1225 +
1226 +/*
1227 + * unsescape %xx to the characters they represent
1228 + */
1229 +
1230 +static void unescape_url (char *url) {
1231 + int i,j;
1232 +
1233 + for (i=0, j=0; url[j]; ++i, ++j) {
1234 + if ((url[i] = url[j]) == '%') {
1235 + url[i] = x2c(&url[j+1]);
1236 + j+=2;
1237 + }
1238 + }
1239 + url[i]='\0';
1240 +}
1241 +
1242 +static inline void put_var(vartype type, char *var)
1243 +{
1244 + char *val;
1245 +
1246 + if (!do_putvar)
1247 + return;
1248 +
1249 + val = strchr(var, '=');
1250 + if (!val)
1251 + return;
1252 +
1253 + *val = 0;
1254 + val++;
1255 + do_putvar(type, var, val);
1256 +
1257 + return;
1258 +}
1259 +
1260 +
1261 +/* CookieVars ()
1262 + * if HTTP_COOKIE is passed as an environment variable,
1263 + * attempt to parse its values into environment variables
1264 + */
1265 +static void CookieVars (void)
1266 +{
1267 + char *qs;
1268 + char *token;
1269 +
1270 + if (getenv("HTTP_COOKIE") != NULL)
1271 + qs=strdup(getenv("HTTP_COOKIE"));
1272 + else
1273 + return;
1274 +
1275 + /** split on; to extract name value pairs */
1276 + token=strtok(qs, ";");
1277 + while (token) {
1278 + // skip leading spaces
1279 + while ( token[0] == ' ' )
1280 + token++;
1281 +
1282 + put_var(COOKIE_VAR, token);
1283 +
1284 + token = strtok(NULL, ";");
1285 + }
1286 + free (qs);
1287 +}
1288 +
1289 +/*
1290 + * Read cgi variables from query string, and put in environment
1291 + */
1292 +static int ReadCGIQueryString (void)
1293 +{
1294 + char *qs;
1295 + char *token;
1296 + int i;
1297 +
1298 + if (getenv("QUERY_STRING") != NULL)
1299 + qs=strdup(getenv("QUERY_STRING"));
1300 + else
1301 + return 0;
1302 +
1303 + /* change plusses into spaces */
1304 + for (i=0; qs[i]; i++ ) { if (qs[i] == '+' ) { qs[i] = ' ';} };
1305 +
1306 + /** split on & and ; to extract name value pairs */
1307 +
1308 + token=strtok(qs, "&;");
1309 + while (token) {
1310 + unescape_url(token);
1311 + put_var(FORM_VAR, token);
1312 + token=strtok(NULL, "&;");
1313 + }
1314 + free(qs);
1315 +
1316 + return 0;
1317 +}
1318 +
1319 +
1320 +/*
1321 + * Read cgi variables from stdin (for POST queries)
1322 + * (oh... and if its mime-encoded file upload, we save the
1323 + * file to /tmp; and return the name of the tmp file
1324 + * the cgi script is responsible for disposing of the tmp file
1325 + */
1326 +
1327 +static int ReadCGIPOSTValues (void) {
1328 + char *qs;
1329 + int content_length;
1330 + int i;
1331 + char *token;
1332 +
1333 +
1334 + if (getenv("CONTENT_LENGTH") == NULL)
1335 + return(-1);
1336 + else
1337 + content_length = atoi(getenv("CONTENT_LENGTH"));
1338 +
1339 + /* protect ourselves from 20GB file uploads */
1340 + if (content_length > MAX_UPLOAD_KB * 1024 ) {
1341 + /* But we need to finish reading the content */
1342 + while ( fread( &i, sizeof(int), 1, stdin) == 1 );
1343 + return -1;
1344 + }
1345 +
1346 + if (!(qs=malloc(content_length+1)))
1347 + return -1;
1348 +
1349 + /* set the buffer to null, so that a browser messing with less
1350 + data than content_length won't buffer underrun us */
1351 + memset(qs, 0 ,content_length+1);
1352 +
1353 + if ((!fread(qs,content_length,1,stdin) &&
1354 + (content_length > 0)
1355 + && !feof(stdin))) {
1356 +
1357 + free(qs);
1358 + return -1;
1359 + }
1360 +
1361 + if (getenv("CONTENT_TYPE") && (strncasecmp(getenv("CONTENT_TYPE"), "multipart/form-data", 19) == 0)) {
1362 + /* This is a mime request, we need to go to the mime handler */
1363 + i=ReadMimeEncodedInput(qs);
1364 + free(qs);
1365 +
1366 + return i;
1367 + }
1368 +
1369 + /* change plusses into spaces */
1370 + for (i=0; qs[i]; i++ ) { if (qs[i] == '+' ) { qs[i] = ' ';} };
1371 +
1372 + /** split on & and ; to extract name value pairs */
1373 + token=strtok(qs, "&;");
1374 + while (token) {
1375 + unescape_url(token);
1376 + put_var(FORM_VAR, token);
1377 + token=strtok(NULL, "&;");
1378 + }
1379 +
1380 + free(qs);
1381 +
1382 + return 0;
1383 +}
1384 +
1385 +/*
1386 + * LineToStr - Scans char and replaces the first "\n" with a "\0";
1387 + * If it finds a "\r", it does that to; (fix DOS brokennes) returns
1388 + * the length of the string;
1389 + */
1390 +static int LineToStr (char *string, size_t max) {
1391 + size_t offset=0;
1392 +
1393 + while ((offset < max) && (string[offset] != '\n') && (string[offset] != '\r'))
1394 + offset++;
1395 +
1396 + if (string[offset] == '\r') {
1397 + string[offset]='\0';
1398 + offset++;
1399 + }
1400 + if (string[offset] == '\n') {
1401 + string[offset]='\0';
1402 + offset++;
1403 + }
1404 +
1405 + return offset;
1406 +}
1407 +
1408 +
1409 +/*
1410 + * ReadMimeEncodedInput - handles things that are mime encoded
1411 + * takes a pointer to the input; returns 0 on success
1412 + */
1413 +
1414 +static int ReadMimeEncodedInput(char *qs)
1415 +{
1416 + char *boundary;
1417 + char *ct;
1418 + int i;
1419 + int datastart;
1420 + size_t cl;
1421 + size_t offset;
1422 + char *envname;
1423 + char *filename;
1424 + char *ptr;
1425 + int line;
1426 + char tmpname[] = TEMPDIR "/XXXXXX";
1427 + int fd;
1428 + /* we should only get here if the content type was set. Segfaults happen
1429 + if Content_Type is null */
1430 +
1431 + if (getenv("CONTENT_LENGTH") == NULL)
1432 + /* No content length?! */
1433 + return(-1);
1434 +
1435 + cl=atoi(getenv("CONTENT_LENGTH"));
1436 +
1437 + /* we do this 'cause we can't mess with the real env. variable - it would
1438 + * overwrite the environment - I tried.
1439 + */
1440 + i=strlen(getenv("CONTENT_TYPE"))+1;
1441 + ct=malloc(i);
1442 + if (ct)
1443 + memcpy(ct, getenv("CONTENT_TYPE"), i);
1444 + else
1445 + return(-1);
1446 +
1447 + i=(int) NULL;
1448 + if (ct != NULL) {
1449 + while (i < strlen(ct) && (strncmp("boundary=", &ct[i], 9) != 0))
1450 + i++;
1451 + }
1452 + if (i == strlen(ct)) {
1453 + /* no boundary informaiton found */
1454 + free(ct);
1455 + return -1;
1456 + }
1457 + boundary=&ct[i+7];
1458 + /* add two leading -- to the boundary */
1459 + boundary[0]='-';
1460 + boundary[1]='-';
1461 +
1462 + /* begin the big loop. Look for:
1463 + --boundary
1464 + Content-Disposition: form-data; name="......."
1465 + ....
1466 + <blank line>
1467 + content
1468 + --boundary
1469 + Content-Disposition: form-data; name="....." filename="....."
1470 + ...
1471 + <blank line>
1472 + --boundary--
1473 + eof
1474 + */
1475 +
1476 + offset=0;
1477 + while (offset < cl) {
1478 + /* first look for boundary */
1479 + while ((offset < cl) && (memcmp(&qs[offset], boundary, strlen(boundary))))
1480 + offset++;
1481 +
1482 + /* if we got here and we ran off the end, its an error */
1483 + if (offset >= cl) {
1484 + free(ct);
1485 + return -1;
1486 + }
1487 +
1488 + /* if the two characters following the boundary are --, */
1489 + /* then we are at the end, exit */
1490 + if (memcmp(&qs[offset+strlen(boundary)], "--", 2) == 0) {
1491 + offset+=2;
1492 + break;
1493 + }
1494 + /* find where the offset should be */
1495 + line=LineToStr(&qs[offset], cl-offset);
1496 + offset+=line;
1497 +
1498 + /* Now we're going to look for content-disposition */
1499 + line=LineToStr(&qs[offset], cl-offset);
1500 + if (strncasecmp(&qs[offset], "Content-Disposition", 19) != 0) {
1501 + /* hmm... content disposition was not where we expected it */
1502 + free(ct);
1503 + return -1;
1504 + }
1505 + /* Found it, so let's go find "name=" */
1506 + if (!(envname=strstr(&qs[offset], "name="))) {
1507 + /* now name= is missing?! */
1508 + free(ct);
1509 + return(-1);
1510 + } else
1511 + envname+=6;
1512 +
1513 + /* is there a filename tag? */
1514 + if ((filename=strstr(&qs[offset], "filename="))!= NULL)
1515 + filename+=10;
1516 + else
1517 + filename=NULL;
1518 +
1519 + /* make envname and filename ASCIIZ */
1520 + for (i=0; (envname[i] != '"') && (envname[i] != '\0'); i++);
1521 +
1522 + envname[i] = '\0';
1523 + if (filename) {
1524 + for (i=0; (filename[i] != '"') && (filename[i] != '\0'); i++);
1525 + filename[i] = '\0';
1526 + }
1527 + offset+=line;
1528 +
1529 + /* Ok, by some miracle, we have the name; let's skip till we */
1530 + /* come to a blank line */
1531 + line=LineToStr(&qs[offset], cl-offset);
1532 + while (strlen(&qs[offset]) > 1) {
1533 + offset+=line;
1534 + line=LineToStr(&qs[offset], cl-offset);
1535 + }
1536 + offset+=line;
1537 + datastart=offset;
1538 + /* And we go back to looking for a boundary */
1539 + while ((offset < cl) && (memcmp(&qs[offset], boundary, strlen(boundary))))
1540 + offset++;
1541 +
1542 + /* strip [cr] lf */
1543 + if ((qs[offset-1] == '\n') && (qs[offset-2] == '\r'))
1544 + offset-=2;
1545 + else
1546 + offset-=1;
1547 +
1548 + qs[offset]=0;
1549 +
1550 + /* ok, at this point, we know where the name is, and we know */
1551 + /* where the content is... we have to do one of two things */
1552 + /* based on whether its a file or not */
1553 + if (filename==NULL) { /* its not a file, so its easy */
1554 + /* just jam the content after the name */
1555 + memcpy(&envname[strlen(envname)+1], &qs[datastart], offset-datastart+1);
1556 + envname[strlen(envname)]='=';
1557 + put_var(FORM_VAR, envname);
1558 + } else { /* handle the fileupload case */
1559 + if (offset-datastart) { /* only if they uploaded */
1560 + if ( global_upload_size == 0 ) {
1561 + return -1;
1562 + }
1563 + /* stuff in the filename */
1564 + ptr= calloc ( sizeof (char), strlen(envname)+strlen(filename)+2+5 );
1565 + sprintf (ptr, "%s_name=%s", envname, filename);
1566 + put_var(FORM_VAR, ptr);
1567 + free(ptr);
1568 +
1569 + fd=mkstemp(tmpname);
1570 +
1571 + if (fd == -1)
1572 + return(-1);
1573 +
1574 + write(fd, &qs[datastart], offset-datastart);
1575 + close(fd);
1576 + ptr= calloc (sizeof(char), strlen(envname)+strlen(tmpname)+2);
1577 + sprintf (ptr, "%s=%s", envname, tmpname);
1578 + put_var(FORM_VAR, ptr);
1579 + free(ptr);
1580 + }
1581 + }
1582 + }
1583 + free(ct);
1584 + return 0;
1585 +}
1586 +
1587 +
1588 +/*-------------------------------------------------------------------------
1589 + *
1590 + * Main
1591 + *
1592 + *------------------------------------------------------------------------*/
1593 +
1594 +int cgi_init(var_handler putvar_handler)
1595 +{
1596 + int retval = 0;
1597 +
1598 + do_putvar = putvar_handler;
1599 +
1600 + /* Read the current environment into our chain */
1601 + CookieVars();
1602 + if (getenv("REQUEST_METHOD")) {
1603 + if (strcasecmp(getenv("REQUEST_METHOD"), "GET") == 0)
1604 + retval = ReadCGIQueryString();
1605 +
1606 + if (strcasecmp(getenv("REQUEST_METHOD"), "POST") == 0)
1607 + retval = ReadCGIPOSTValues();
1608 + }
1609 +
1610 + return retval;
1611 +}
1612 Index: busybox-1.8.1/libbb/Kbuild
1613 ===================================================================
1614 --- busybox-1.8.1.orig/libbb/Kbuild 2007-11-10 17:04:07.547062497 +0100
1615 +++ busybox-1.8.1/libbb/Kbuild 2007-11-10 17:06:19.282569674 +0100
1616 @@ -101,6 +101,7 @@
1617 lib-y += xreadlink.o
1618
1619 # conditionally compiled objects:
1620 +lib-$(CONFIG_AWX) += cgi.o
1621 lib-$(CONFIG_FEATURE_MOUNT_LOOP) += loop.o
1622 lib-$(CONFIG_LOSETUP) += loop.o
1623 lib-$(CONFIG_FEATURE_MTAB_SUPPORT) += mtab.o
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