rewritten template parser for awx - uses @for, @if, @else, @end for basic flow control
[openwrt/svn-archive/archive.git] / package / busybox / patches / 920-awx.patch
1 diff -purN bb.old/editors/awk.c bb.dev/editors/awk.c
2 --- bb.old/editors/awk.c 2007-05-20 04:17:05.002197784 +0200
3 +++ bb.dev/editors/awk.c 2007-05-20 07:03:57.436076472 +0200
4 @@ -30,6 +30,11 @@
5 /* these flags are static, don't change them when value is changed */
6 #define VF_DONTTOUCH (VF_ARRAY | VF_SPECIAL | VF_WALK | VF_CHILD | VF_DIRTY)
7
8 +#ifdef CONFIG_AWX
9 +#define fputs(s, stream) fputs_hook(s, stream)
10 +static inline int fputs_hook (__const char *__restrict __s, FILE *__restrict __stream);
11 +#endif
12 +
13 /* Variable */
14 typedef struct var_s {
15 unsigned short type; /* flags */
16 @@ -50,10 +55,15 @@ typedef struct chain_s {
17 char *programname;
18 } chain;
19
20 +typedef var *(*awk_cfunc)(var *res, var *args, int nargs);
21 /* Function */
22 typedef struct func_s {
23 unsigned short 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 @@ -1312,7 +1322,8 @@ static void parse_program(char *p)
34 next_token(TC_FUNCTION);
35 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 @@ -1321,7 +1332,7 @@ static void parse_program(char *p)
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 @@ -2260,7 +2271,8 @@ static var *evaluate(node *op, var *res)
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 runtime_error(EMSG_UNDEF_FUNC);
60
61 X.v = R.v = nvalloc(op->r.f->nargs+1);
62 @@ -2277,7 +2289,11 @@ static var *evaluate(node *op, var *res)
63 fnargs = X.v;
64
65 L.s = programname;
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 +
72 programname = L.s;
73
74 nvfree(fnargs);
75 @@ -2637,6 +2653,11 @@ static rstream *next_input_file(void)
76 return &rsm;
77 }
78
79 +#ifdef CONFIG_AWX
80 +static int is_awx = 0;
81 +#include "awx.c"
82 +#endif
83 +
84 int awk_main(int argc, char **argv)
85 {
86 int i, j, flen;
87 @@ -2693,6 +2714,10 @@ int awk_main(int argc, char **argv)
88 free(s);
89 }
90
91 +#ifdef CONFIG_AWX
92 + do_awx(argc, argv);
93 +#endif
94 +
95 programname = NULL;
96 while((c = getopt(argc, argv, "F:v:f:W:")) != EOF) {
97 switch (c) {
98 diff -purN bb.old/editors/awx.c bb.dev/editors/awx.c
99 --- bb.old/editors/awx.c 1970-01-01 01:00:00.000000000 +0100
100 +++ bb.dev/editors/awx.c 2007-05-20 08:07:26.759971216 +0200
101 @@ -0,0 +1,625 @@
102 +/*
103 + * awk web extension
104 + *
105 + * Copyright (C) 2007 by Felix Fietkau <nbd@openwrt.org>
106 + *
107 + * Licensed under the GPL v2 or later, see the file LICENSE in this tarball.
108 + */
109 +
110 +#include <cgi.h>
111 +#include <glob.h>
112 +#include "awx_parser.h"
113 +
114 +#define LINE_BUF 2048
115 +#define HASH_MAX 1536
116 +#define TR_START "@TR<<"
117 +#define TR_END ">>"
118 +#define MAX_TR 32
119 +
120 +#undef fputs
121 +
122 +static xhash *lstr = NULL;
123 +static xhash *formvar = NULL;
124 +static int lang_inuse = 0;
125 +
126 +/* look up a translation symbol from the hash */
127 +static inline char *translate_lookup(char *str)
128 +{
129 + char *name, *def, *p;
130 + hash_item *hi;
131 + var *v;
132 +
133 + def = name = str;
134 + if (((p = strchr(str, '|')) != NULL)
135 + || ((p = strchr(str, '#')) != NULL)) {
136 + def = p + 1;
137 + *p = 0;
138 + }
139 +
140 + hi = hash_search(lstr, name);
141 + if (!hi)
142 + return def;
143 +
144 + v = &hi->data.v;
145 +
146 + return getvar_s(v);
147 +}
148 +
149 +/* look for translation markers in the line and return the translated string */
150 +static char *translate_line(char *line)
151 +{
152 + char *tok[MAX_TR * 3];
153 + char *l, *p, *p2, *res;
154 + int len = 0, _pos = 0, i, tr_abort = 0;
155 + static char *backlog = NULL;
156 +
157 + if (backlog) {
158 + backlog = xrealloc(backlog, strlen(backlog) + strlen(line) + 1);
159 + sprintf(backlog + strlen(backlog), line);
160 + l = backlog;
161 + } else {
162 + l = line;
163 + }
164 +
165 + while (l != NULL) {
166 + if ((p = strstr(l, TR_START)) == NULL) {
167 + len += strlen((tok[_pos++] = l));
168 + break;
169 + }
170 +
171 + p2 = strstr(p, TR_END);
172 + if (p2 == NULL) {
173 + p2 = backlog;
174 + backlog = xstrdup(l);
175 + if (p2)
176 + free(p2);
177 + tr_abort = 1;
178 + break;
179 + }
180 +
181 + *p = 0;
182 + *p2 = 0;
183 + len += strlen((tok[_pos++] = l));
184 + len += strlen((tok[_pos++] = translate_lookup(p + strlen(TR_START))));
185 +
186 + l = p2;
187 + l += strlen(TR_END);
188 + }
189 + len++;
190 +
191 + p = xmalloc(len + 1);
192 + *p = 0;
193 + res = p;
194 + for (i = 0; i < _pos; i++) {
195 + strcat(p, tok[i]);
196 + p += strlen(tok[i]);
197 + }
198 + if (!tr_abort && backlog) {
199 + free(backlog);
200 + backlog = NULL;
201 + }
202 +
203 + return res;
204 +}
205 +
206 +/* hook for intercepting awk's use of puts. used for running all printed strings
207 + * through the translation system */
208 +static inline int fputs_hook (__const char *__restrict __s, FILE *__restrict __stream)
209 +{
210 + if (lang_inuse && (__stream == stdout)) {
211 + int ret;
212 + char *str;
213 +
214 + str = translate_line((char *) __s);
215 + ret = fputs(str, __stream);
216 + free(str);
217 +
218 + return ret;
219 + }
220 +
221 + return fputs(__s, __stream);
222 +}
223 +
224 +static var *init_lang(var *res, var *args, int nargs)
225 +{
226 + if (!lstr)
227 + lstr = hash_init();
228 +
229 + lang_inuse = 1;
230 + return res;
231 +}
232 +
233 +
234 +/* load and parse language file */
235 +static void load_lang_file(char *file)
236 +{
237 + FILE *f;
238 + char *b, *name, *value;
239 + char buf1[LINE_BUF];
240 +
241 + if ((f = fopen(file, "r")) == NULL)
242 + return;
243 +
244 + while (!feof(f) && (fgets(buf1, LINE_BUF - 1, f) != NULL)) {
245 + b = buf1;
246 + if (*b == '#')
247 + continue; /* skip comments */
248 +
249 + while (isspace(*b))
250 + b++; /* skip leading spaces */
251 + if (!*b)
252 + continue;
253 +
254 + name = b;
255 + if ((b = strstr(name, "=>")) == NULL)
256 + continue; /* separator not found */
257 +
258 + value = b + 2;
259 + if (!*value)
260 + continue;
261 +
262 + *b = 0;
263 + for (b--; isspace(*b); b--)
264 + *b = 0; /* remove trailing spaces */
265 +
266 + while (isspace(*value))
267 + value++; /* skip leading spaces */
268 +
269 + for (b = value + strlen(value) - 1; isspace(*b); b--)
270 + *b = 0; /* remove trailing spaces */
271 +
272 + if (!*value)
273 + continue;
274 +
275 + setvar_s(findvar(lstr,name), value);
276 + }
277 +
278 + fclose(f);
279 +}
280 +
281 +static var *load_lang(var *res, var *args, int nargs)
282 +{
283 + const char *langfmt = "/usr/lib/webif/lang/%s.txt";
284 + char lbuf[LINE_BUF];
285 + char *lang;
286 +
287 + if (!lang_inuse)
288 + init_lang(res, args, nargs);
289 +
290 + lang = getvar_s(args);
291 + if (!lang || !strcmp(lang, ""))
292 + return res;
293 +
294 + sprintf(lbuf, langfmt, lang);
295 + load_lang_file(lbuf);
296 +
297 + return res;
298 +}
299 +
300 +/* read the contents of an entire file */
301 +static char *get_file(char *fname)
302 +{
303 + FILE *F;
304 + char *s = NULL;
305 + int i, j, flen;
306 +
307 + F = fopen(fname, "r");
308 + if (!F) {
309 + return NULL;
310 + }
311 +
312 + if (fseek(F, 0, SEEK_END) == 0) {
313 + flen = ftell(F);
314 + s = (char *)xmalloc(flen+4);
315 + fseek(F, 0, SEEK_SET);
316 + i = 1 + fread(s+1, 1, flen, F);
317 + } else {
318 + for (i=j=1; j>0; i+=j) {
319 + s = (char *)xrealloc(s, i+4096);
320 + j = fread(s+i, 1, 4094, F);
321 + }
322 + }
323 +
324 + s[i] = '\0';
325 + fclose(F);
326 + return s;
327 +}
328 +
329 +
330 +/* parse_include():
331 + *
332 + * taken from parse_program from awk.c
333 + * END{} is not parsed here, and BEGIN{} is executed immediately
334 + */
335 +static void parse_include(char *p)
336 +{
337 + uint32_t tclass;
338 + chain *initseq = NULL;
339 + chain tmp;
340 + func *f;
341 + var *v, tv;
342 +
343 + zero_out_var(&tv);
344 + memset(&tmp, 0, sizeof(tmp));
345 + pos = p;
346 + t.lineno = 1;
347 + while ((tclass = next_token(TC_EOF | TC_OPSEQ |
348 + TC_OPTERM | TC_BEGIN | TC_FUNCDECL)) != TC_EOF) {
349 + if (tclass & TC_OPTERM)
350 + continue;
351 +
352 + seq = &tmp;
353 + if (tclass & TC_BEGIN) {
354 + initseq = xzalloc(sizeof(chain));
355 + seq = initseq;
356 + chain_group();
357 + } else if (tclass & TC_FUNCDECL) {
358 + next_token(TC_FUNCTION);
359 + pos++;
360 + f = newfunc(t.string);
361 + f->type = AWKFUNC;
362 + f->x.body.first = NULL;
363 + f->nargs = 0;
364 + while (next_token(TC_VARIABLE | TC_SEQTERM) & TC_VARIABLE) {
365 + v = findvar(ahash, t.string);
366 + v->x.aidx = (f->nargs)++;
367 +
368 + if (next_token(TC_COMMA | TC_SEQTERM) & TC_SEQTERM)
369 + break;
370 + }
371 + seq = &(f->x.body);
372 + chain_group();
373 + clear_array(ahash);
374 + }
375 + }
376 + if (initseq && initseq->first)
377 + evaluate(initseq->first, &tv);
378 +}
379 +
380 +
381 +/* include an awk file and run its BEGIN{} section */
382 +static xhash *includes = NULL;
383 +static void include_file(char *filename)
384 +{
385 + char *s;
386 + var *v;
387 +
388 + if (!includes)
389 + includes = hash_init();
390 +
391 + /* find out if the file has been included already */
392 + v = findvar(includes, filename);
393 + if (istrue(v))
394 + return;
395 + setvar_s(v, "1");
396 +
397 + /* read include file */
398 + s = get_file(filename);
399 + if (!s) {
400 + fprintf(stderr, "Could not open file.\n");
401 + return;
402 + }
403 + parse_include(s+1);
404 + free(s);
405 +}
406 +
407 +static var *include(var *res, var *args, int nargs)
408 +{
409 + char *s;
410 +
411 + s = getvar_s(args);
412 + if (s && (strlen(s) > 0))
413 + include_file(s);
414 +
415 + return res;
416 +}
417 +
418 +/* parse an awk expression */
419 +static var *parse_awk(char *str)
420 +{
421 + chain body;
422 + node *n;
423 + var *tv = xzalloc(sizeof(*tv));
424 +
425 + memset(&body, 0, sizeof(body));
426 + pos = str;
427 + seq = &body;
428 +
429 + /* end of expression, assume that there's going to be a free byte
430 + * at the end of the string that can be used for the ')' */
431 + strcat(str + strlen(str), "}");
432 + n = parse_expr(TC_GRPTERM);
433 + if (!n)
434 + return NULL;
435 +
436 + return evaluate(n, tv);
437 +}
438 +
439 +static inline void print_translate(char *s)
440 +{
441 + char *str = s;
442 + if (lang_inuse)
443 + str = translate_line(s);
444 + fputs(str, stdout);
445 + fflush(stdout);
446 + if (lang_inuse)
447 + free(str);
448 +}
449 +
450 +static void render_element(struct template_cb *tcb, struct template_element *e)
451 +{
452 + var *v;
453 + char *s;
454 + if (!e || !e->var)
455 + return;
456 + lineno = e->line;
457 + switch (e->t) {
458 + case T_TEXT:
459 + s = strdup(e->var);
460 + print_translate(s);
461 + free(s);
462 + break;
463 + case T_CODE:
464 + s = strdup(e->var);
465 + v = parse_awk(s);
466 + free(s);
467 + s = strdup(getvar_s(v));
468 + print_translate(s);
469 + free(s);
470 + break;
471 + case T_IF:
472 + s = strdup(e->var);
473 + v = parse_awk(s);
474 + free(s);
475 + if (!v)
476 + return;
477 + if (istrue(v))
478 + execute_template(tcb, e->sub);
479 + else if (e->sub2)
480 + execute_template(tcb, e->sub2);
481 +
482 + clrvar(v);
483 + break;
484 + case T_FOR: {
485 + v = newvar(e->var);
486 + hashwalk_init(v, iamarray(findvar(vhash, e->in)));
487 + while (hashwalk_next(v)) {
488 + execute_template(tcb, e->sub);
489 + }
490 + }
491 + break;
492 + default:
493 + break;
494 + }
495 +}
496 +
497 +/* awk method render(), which opens a template file and processes all awk ssi calls */
498 +static void render_file(char *filename)
499 +{
500 + struct template_cb tcb;
501 + struct template_element *e;
502 + FILE *f;
503 + char *oldprg;
504 + int oldlnr;
505 +
506 + oldlnr = lineno;
507 + oldprg = programname;
508 + programname = filename;
509 +
510 + f = fopen(filename, "r");
511 + if (!f)
512 + return;
513 +
514 + memset(&tcb, 0, sizeof(tcb));
515 + tcb.handle_element = render_element;
516 + e = parse_template(&tcb, f);
517 + execute_template(&tcb, e);
518 + free_template(&tcb, e);
519 + fclose(f);
520 + programname = oldprg;
521 + lineno = oldlnr;
522 +}
523 +
524 +static var *render(var *res, var *args, int nargs)
525 +{
526 + char *s;
527 +
528 + s = getvar_s(args);
529 + if (!s)
530 + return res;
531 +
532 + render_file(s);
533 +
534 + return res;
535 +}
536 +
537 +/* Call render, but only if this function hasn't been called already */
538 +static int layout_rendered = 0;
539 +static var *render_layout(var *res, var *args, int nargs)
540 +{
541 + if (layout_rendered)
542 + return res;
543 + layout_rendered = 1;
544 + return render(res, args, nargs);
545 +}
546 +
547 +/* registers a global c function for the awk interpreter */
548 +static void register_cfunc(char *name, awk_cfunc cfunc, int nargs)
549 +{
550 + func *f;
551 +
552 + f = newfunc(name);
553 + f->type = CFUNC;
554 + f->x.cfunc = cfunc;
555 + f->nargs = nargs;
556 +}
557 +
558 +static void putvar(vartype type, char *name, char *value)
559 +{
560 + if (type != FORM_VAR)
561 + return;
562 +
563 + setvar_u(findvar(formvar, name), value);
564 +}
565 +
566 +static char *cgi_getvar(char *name)
567 +{
568 + if (!formvar) {
569 + formvar = hash_init();
570 + cgi_init(putvar);
571 + }
572 +
573 + if (!formvar || !name)
574 + return NULL;
575 +
576 + return getvar_s(findvar(formvar, name));
577 +}
578 +
579 +/* function call for accessing cgi form variables */
580 +static var *getvar(var *res, var *args, int nargs)
581 +{
582 + char *s;
583 + char *svar;
584 +
585 + s = getvar_s(args);
586 + if (!s)
587 + return res;
588 +
589 + svar = cgi_getvar(s);
590 + if (!svar)
591 + return res;
592 +
593 + setvar_u(res, svar);
594 +
595 + return res;
596 +}
597 +
598 +/* call an awk function without arguments by string reference */
599 +static var *call(var *res, var *args, int nargs)
600 +{
601 + char *s = getvar_s(args);
602 + func *f;
603 +
604 + if (!s)
605 + goto done;
606 +
607 + f = newfunc(s);
608 + if (f && f->type == AWKFUNC && f->x.body.first)
609 + return evaluate(f->x.body.first, res);
610 +
611 +done:
612 + return res;
613 +}
614 +
615 +
616 +static int run_awxscript(char *name)
617 +{
618 + var tv, *layout, *action;
619 + char *tmp, *s = NULL;
620 +
621 + zero_out_var(&tv);
622 + programname = name;
623 +
624 + /* read the main controller source */
625 + s = get_file(programname);
626 + if (!s) {
627 + fprintf(stderr, "Could not open file\n");
628 + return 1;
629 + }
630 + parse_program(s+1);
631 + free(s);
632 +
633 +
634 + /* set some defaults for ACTION and LAYOUT, which will have special meaning */
635 + layout = newvar("LAYOUT");
636 + setvar_s(layout, "views/layout.ahtml");
637 +
638 + /* run the BEGIN {} block */
639 + evaluate(beginseq.first, &tv);
640 +
641 + action = newvar("ACTION");
642 + if (!(strlen(getvar_s(action)) > 0)) {
643 + tmp = cgi_getvar("action");
644 + if (!tmp || (strlen(tmp) <= 0))
645 + tmp = strdup("default");
646 +
647 + setvar_p(action, tmp);
648 + }
649 +
650 + /* call the action (precedence: begin block override > cgi parameter > "default") */
651 + tmp = xmalloc(strlen(getvar_s(action)) + 7);
652 + sprintf(tmp, "handle_%s", getvar_s(action));
653 + setvar_s(action, tmp);
654 + call(&tv, action, 1);
655 + free(tmp);
656 +
657 + /* render the selected layout, will do nothing if render_layout has been called from awk */
658 + render_layout(&tv, layout, 1);
659 +
660 + return 0;
661 +}
662 +
663 +
664 +/* main awx processing function. called from awk_main() */
665 +static int do_awx(int argc, char **argv)
666 +{
667 + int ret = -1;
668 + var tv;
669 + int i, c;
670 + char **args = argv;
671 +
672 + zero_out_var(&tv);
673 +
674 + /* register awk C callbacks */
675 + register_cfunc("getvar", getvar, 1);
676 + register_cfunc("render", render, 1);
677 + register_cfunc("render_layout", render_layout, 1);
678 + register_cfunc("call", call, 1);
679 + register_cfunc("include", include, 1);
680 + register_cfunc("init_lang", init_lang, 1);
681 + register_cfunc("load_lang", load_lang, 1);
682 +
683 + if (!is_awx)
684 + return 0;
685 +
686 + /* fill in ARGV array */
687 + setvar_i(V[ARGC], argc + 1);
688 + setari_u(V[ARGV], 0, "awx");
689 + i = 0;
690 + while (*args)
691 + setari_u(V[ARGV], ++i, *args++);
692 +
693 + while((c = getopt(argc, argv, "i:f:")) != EOF) {
694 + switch(c) {
695 + case 'i':
696 + programname = optarg;
697 + include_file(optarg);
698 + break;
699 + case 'f':
700 + ret = 0;
701 + programname = optarg;
702 + render_file(optarg);
703 + goto done;
704 + }
705 + }
706 + argc -= optind;
707 + argv += optind;
708 +
709 + if (argc < 1) {
710 + fprintf(stderr, "Invalid argument.\n");
711 + goto done;
712 + }
713 +
714 + ret = run_awxscript(*argv);
715 +
716 +done:
717 + exit(ret);
718 +}
719 +
720 +/* entry point for awx applet */
721 +int awx_main(int argc, char **argv)
722 +{
723 + is_awx = 1;
724 + return awk_main(argc, argv);
725 +}
726 +
727 diff -purN bb.old/editors/awx_parser.h bb.dev/editors/awx_parser.h
728 --- bb.old/editors/awx_parser.h 1970-01-01 01:00:00.000000000 +0100
729 +++ bb.dev/editors/awx_parser.h 2007-05-20 08:30:30.010685144 +0200
730 @@ -0,0 +1,38 @@
731 +#ifndef __TEMPLATE_PARSER_H
732 +#define __TEMPLATE_PARSER_H
733 +
734 +enum type {
735 + T_TEXT,
736 + T_FOR,
737 + T_IF,
738 + T_CODE
739 +};
740 +
741 +struct template_element;
742 +struct template_cb;
743 +
744 +struct template_cb {
745 + void *(*prepare_code)(struct template_element *);
746 + void (*handle_element)(struct template_cb *, struct template_element *);
747 + void (*free_code)(struct template_element *);
748 +};
749 +
750 +struct template_element {
751 + enum type t;
752 + char *var;
753 + char *in;
754 + int line;
755 + void *priv;
756 + struct template_element *parent;
757 + struct template_element *sub;
758 + struct template_element *sub2;
759 + struct template_element *prev;
760 + struct template_element *next;
761 +};
762 +
763 +
764 +struct template_element *parse_template(struct template_cb *cb, FILE *in);
765 +void execute_template(struct template_cb *cb, struct template_element *e);
766 +void free_template(struct template_cb *cb, struct template_element *e);
767 +
768 +#endif
769 diff -purN bb.old/editors/awx_parser.l bb.dev/editors/awx_parser.l
770 --- bb.old/editors/awx_parser.l 1970-01-01 01:00:00.000000000 +0100
771 +++ bb.dev/editors/awx_parser.l 2007-05-20 08:30:55.698779960 +0200
772 @@ -0,0 +1,302 @@
773 +%{
774 +#include <stdio.h>
775 +#include <string.h>
776 +#include <stdlib.h>
777 +#include "busybox.h"
778 +#include "awx_parser.h"
779 +
780 +enum {
781 + S_INIT,
782 + S_TEXT,
783 + S_CODE,
784 + S_IF_START,
785 + S_FOR_START,
786 + S_FOR_IN,
787 + S_END,
788 + S_ELSE,
789 + S_EOF
790 +};
791 +int state;
792 +
793 +#undef DEBUG
794 +#ifdef DEBUG
795 +char *statestr[] = {
796 + [S_INIT] = "S_INIT",
797 + [S_TEXT] = "S_TEXT",
798 + [S_CODE] = "S_CODE",
799 + [S_IF_START] = "S_IF_START",
800 + [S_FOR_START] = "S_FOR_START",
801 + [S_FOR_IN] = "S_FOR_IN",
802 + [S_EOF] = "S_EOF"
803 +};
804 +
805 +char *typestr[] = {
806 + [T_TEXT] = "T_TEXT",
807 + [T_FOR] = "T_FOR",
808 + [T_IF] = "T_IF",
809 + [T_CODE] = "T_CODE"
810 +};
811 +#endif
812 +
813 +static struct template_cb *parse_cb;
814 +static struct template_element *cur, *head;
815 +static char *textbuf;
816 +static unsigned int buflen;
817 +static unsigned int buf_offset;
818 +static int _lnr = 0;
819 +
820 +static void buf_realloc(void)
821 +{
822 + buflen *= 2;
823 + textbuf = xrealloc(textbuf, buflen);
824 +}
825 +
826 +static void parse_error(char *str)
827 +{
828 + fprintf(stderr, "Parse error%s%s\n", (str ? ": " : "!"), (str ?: ""));
829 + exit(255);
830 +}
831 +
832 +
833 +static struct template_element *new_template_element(struct template_element *parent)
834 +{
835 + struct template_element *ptr;
836 +
837 + ptr = xzalloc(sizeof(*ptr));
838 + ptr->parent = parent;
839 + return ptr;
840 +}
841 +
842 +static inline void next_template_element(void)
843 +{
844 + cur->next = new_template_element(cur->parent);
845 + cur->next->prev = cur;
846 + cur = cur->next;
847 +}
848 +
849 +static void addtext(char *text)
850 +{
851 + while(buf_offset + strlen(text) + 1 > buflen)
852 + buf_realloc();
853 +
854 + buf_offset += sprintf(&textbuf[buf_offset], "%s", text);
855 +}
856 +
857 +static void set_state(int newstate)
858 +{
859 + char *ptr;
860 +
861 +#ifdef DEBUG
862 + static int _rec = 0;
863 + fprintf(stderr, "DEBUG(%d): %s => %s: %s\n", _rec, statestr[state], statestr[newstate], textbuf);
864 +#endif
865 + ptr = xstrdup(textbuf);
866 + if (state == S_FOR_IN)
867 + cur->in = ptr;
868 + else
869 + cur->var = ptr;
870 +
871 + if (parse_cb && (cur->t == T_CODE) && parse_cb->prepare_code)
872 + parse_cb->prepare_code(cur);
873 +
874 + buf_offset = 0;
875 + *textbuf = 0;
876 +
877 + switch(newstate) {
878 +#if 0
879 + case S_EOF:
880 + if (cur->parent)
881 + parse_error();
882 + break;
883 +#endif
884 + case S_FOR_START:
885 + if (ptr || !cur->prev)
886 + next_template_element();
887 + cur->t = T_FOR;
888 + break;
889 + case S_IF_START:
890 + if (ptr || !cur->prev)
891 + next_template_element();
892 + cur->t = T_IF;
893 + break;
894 + case S_ELSE:
895 + cur = cur->parent;
896 + if (!cur)
897 + parse_error("'@else' without parent element");
898 + cur->sub2 = new_template_element(cur);
899 + cur = cur->sub2;
900 + newstate = S_TEXT;
901 + break;
902 + case S_END:
903 +#ifdef DEBUG
904 + _rec--;
905 +#endif
906 + cur = cur->parent;
907 + if (!cur)
908 + parse_error("'@end' without parent element");
909 +
910 + next_template_element();
911 + cur->t = T_TEXT;
912 + newstate = S_TEXT;
913 + break;
914 + case S_TEXT:
915 + switch (cur->t) {
916 + case T_CODE:
917 + next_template_element();
918 + break;
919 + case T_IF:
920 + case T_FOR:
921 +#ifdef DEBUG
922 + _rec++;
923 +#endif
924 + cur->sub = new_template_element(cur);
925 + cur = cur->sub;
926 + break;
927 + default:
928 + break;
929 + }
930 + cur->t = T_TEXT;
931 + break;
932 + case S_CODE:
933 + if (ptr || !cur->prev)
934 + next_template_element();
935 + cur->t = T_CODE;
936 + break;
937 + default:
938 + break;
939 + }
940 + cur->line = _lnr;
941 + state = newstate;
942 +}
943 +
944 +%}
945 +
946 +%%
947 +"<%"[ \n\t]*"@if"[ \n\t]+ {
948 + if (state == S_TEXT)
949 + set_state(S_IF_START);
950 + else
951 + REJECT;
952 +}
953 +
954 +"<%"[ \n\t]*"@for"[ \n\t]+ {
955 + if (state == S_TEXT)
956 + set_state(S_FOR_START);
957 + else
958 + REJECT;
959 +}
960 +
961 +[ \n\t]+"in"[ \n\t]+ {
962 + if (state == S_FOR_START)
963 + set_state(S_FOR_IN);
964 + else
965 + REJECT;
966 +}
967 +
968 +"<%"[ \n\t]*"@end"[ \n\t]*%> {
969 + if (state != S_TEXT)
970 + REJECT;
971 + set_state(S_END);
972 +}
973 +
974 +"<%"[ \n\t]*"@else"[ \n\t]*%> {
975 + if (state != S_TEXT)
976 + REJECT;
977 + set_state(S_ELSE);
978 +}
979 +
980 +"<%" {
981 + if (state != S_TEXT)
982 + parse_error("'<%' cannot be nested");
983 + set_state(S_CODE);
984 +}
985 +
986 +[ \n\t]"%>" {
987 + if (state == S_TEXT)
988 + REJECT;
989 + set_state(S_TEXT);
990 +}
991 +
992 +\n {
993 + _lnr++;
994 + if (state == S_TEXT)
995 + addtext(yytext);
996 +}
997 +. {
998 + addtext(yytext);
999 +}
1000 +
1001 +
1002 +%%
1003 +
1004 +
1005 +void execute_template(struct template_cb *cb, struct template_element *e)
1006 +{
1007 + static int rec = 0;
1008 +
1009 + while (e) {
1010 +#ifdef DEBUG
1011 + fprintf(stderr, "DEBUG: execute(%d)\t%s\n", rec, typestr[e->t]);
1012 +#endif
1013 + rec++;
1014 + if (cb->handle_element)
1015 + cb->handle_element(cb, e);
1016 + rec--;
1017 + e = e->next;
1018 + }
1019 +}
1020 +
1021 +int yywrap()
1022 +{
1023 + set_state(S_EOF);
1024 + return 1;
1025 +}
1026 +
1027 +struct template_element *parse_template(struct template_cb *cb, FILE *in)
1028 +{
1029 + _lnr = 1;
1030 + buf_offset = 0;
1031 + state = S_TEXT;
1032 + parse_cb = cb;
1033 +
1034 + buflen = 4096;
1035 + textbuf = xzalloc(buflen);
1036 +
1037 + head = xzalloc(sizeof(*head));
1038 + head->t = T_TEXT;
1039 + cur = head;
1040 +
1041 + yyin = in;
1042 + yylex();
1043 +
1044 + return head;
1045 +}
1046 +
1047 +void free_template(struct template_cb *cb, struct template_element *e)
1048 +{
1049 + struct template_element *next;
1050 +
1051 + if (!e)
1052 + return;
1053 +
1054 + switch (e->t) {
1055 + case T_CODE:
1056 + if (cb->free_code)
1057 + cb->free_code(e);
1058 + break;
1059 + case T_FOR:
1060 + case T_IF:
1061 + free_template(cb, e->sub);
1062 + break;
1063 + default:
1064 + break;
1065 + }
1066 + if (e->var)
1067 + free(e->var);
1068 + if (e->in)
1069 + free(e->in);
1070 +
1071 + next = e->next;
1072 + free(e);
1073 + return free_template(cb, next);
1074 +}
1075 diff -purN bb.old/editors/Config.in bb.dev/editors/Config.in
1076 --- bb.old/editors/Config.in 2007-05-20 04:17:05.003197632 +0200
1077 +++ bb.dev/editors/Config.in 2007-05-20 04:16:47.180907032 +0200
1078 @@ -12,6 +12,13 @@ config AWK
1079 Awk is used as a pattern scanning and processing language. This is
1080 the BusyBox implementation of that programming language.
1081
1082 +config AWX
1083 + bool "Enable awx (awk web extension)"
1084 + default n
1085 + depends on AWK
1086 + help
1087 + awx - awk web extension
1088 +
1089 config FEATURE_AWK_MATH
1090 bool "Enable math functions (requires libm)"
1091 default y
1092 diff -purN bb.old/editors/Kbuild bb.dev/editors/Kbuild
1093 --- bb.old/editors/Kbuild 2007-03-18 17:59:37.000000000 +0100
1094 +++ bb.dev/editors/Kbuild 2007-05-20 05:13:45.363264328 +0200
1095 @@ -10,3 +10,12 @@ lib-$(CONFIG_ED) += ed.o
1096 lib-$(CONFIG_PATCH) += patch.o
1097 lib-$(CONFIG_SED) += sed.o
1098 lib-$(CONFIG_VI) += vi.o
1099 +lib-$(CONFIG_AWX) += awx_parser.o
1100 +
1101 +editors/awx_parser.c: editors/awx_parser.l editors/awx_parser.h
1102 + @flex $<
1103 + @mv lex.yy.c $@
1104 +
1105 +editors/awx_parser.o: editors/awx_parser.c FORCE
1106 + $(call cmd,force_checksrc)
1107 + $(call if_changed_rule,cc_o_c)
1108 diff -purN bb.old/include/applets.h bb.dev/include/applets.h
1109 --- bb.old/include/applets.h 2007-05-20 04:17:05.003197632 +0200
1110 +++ bb.dev/include/applets.h 2007-05-20 04:16:47.180907032 +0200
1111 @@ -60,6 +60,7 @@ USE_ARP(APPLET(arp, _BB_DIR_SBIN, _BB_SU
1112 USE_ARPING(APPLET(arping, _BB_DIR_USR_BIN, _BB_SUID_NEVER))
1113 USE_ASH(APPLET_NOUSAGE(ash, ash, _BB_DIR_BIN, _BB_SUID_NEVER))
1114 USE_AWK(APPLET(awk, _BB_DIR_USR_BIN, _BB_SUID_NEVER))
1115 +USE_AWX(APPLET_NOUSAGE(awx, awx, _BB_DIR_USR_BIN, _BB_SUID_NEVER))
1116 USE_BASENAME(APPLET(basename, _BB_DIR_USR_BIN, _BB_SUID_NEVER))
1117 USE_BBCONFIG(APPLET(bbconfig, _BB_DIR_BIN, _BB_SUID_NEVER))
1118 //USE_BBSH(APPLET(bbsh, _BB_DIR_BIN, _BB_SUID_NEVER))
1119 diff -purN bb.old/include/cgi.h bb.dev/include/cgi.h
1120 --- bb.old/include/cgi.h 1970-01-01 01:00:00.000000000 +0100
1121 +++ bb.dev/include/cgi.h 2007-05-20 04:16:47.180907032 +0200
1122 @@ -0,0 +1,8 @@
1123 +#ifndef CGI_H
1124 +#define CGI_H
1125 +
1126 +typedef enum { FORM_VAR, COOKIE_VAR } vartype;
1127 +typedef void (*var_handler) (vartype, char *, char *);
1128 +int cgi_init(var_handler);
1129 +
1130 +#endif
1131 diff -purN bb.old/libbb/cgi.c bb.dev/libbb/cgi.c
1132 --- bb.old/libbb/cgi.c 1970-01-01 01:00:00.000000000 +0100
1133 +++ bb.dev/libbb/cgi.c 2007-05-20 04:16:47.181906880 +0200
1134 @@ -0,0 +1,457 @@
1135 +/* --------------------------------------------------------------------------
1136 + * functions for processing cgi form data
1137 + * Copyright (C) 2007 by Felix Fietkau <nbd@openwrt.org>
1138 + *
1139 + * parts taken from the core of haserl.cgi - a poor-man's php for embedded/lightweight environments
1140 + * $Id: haserl.c,v 1.13 2004/11/10 17:59:35 nangel Exp $
1141 + * Copyright (c) 2003,2004 Nathan Angelacos (nangel@users.sourceforge.net)
1142 + *
1143 + * This program is free software; you can redistribute it and/or modify
1144 + * it under the terms of the GNU General Public License as published by
1145 + * the Free Software Foundation; either version 2 of the License, or
1146 + * (at your option) any later version.
1147 + *
1148 + * This program is distributed in the hope that it will be useful,
1149 + * but WITHOUT ANY WARRANTY; without even the implied warranty of
1150 + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
1151 + * General Public License for more details.
1152 + *
1153 + * You should have received a copy of the GNU General Public License
1154 + * along with this program; if not, write to the Free Software
1155 + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
1156 + *
1157 + * -----
1158 + * The x2c() and unescape_url() routines were taken from
1159 + * http://www.jmarshall.com/easy/cgi/getcgi.c.txt
1160 + *
1161 + * The comments in that text file state:
1162 + *
1163 + *** Written in 1996 by James Marshall, james@jmarshall.com, except
1164 + *** that the x2c() and unescape_url() routines were lifted directly
1165 + *** from NCSA's sample program util.c, packaged with their HTTPD.
1166 + *** For the latest, see http://www.jmarshall.com/easy/cgi/
1167 + * -----
1168 + *
1169 + ------------------------------------------------------------------------- */
1170 +
1171 +#include <stdio.h>
1172 +#include <unistd.h>
1173 +#include <time.h>
1174 +#include <sys/mman.h>
1175 +#include <sys/types.h>
1176 +#include <sys/wait.h>
1177 +#include <sys/stat.h>
1178 +#include <sys/fcntl.h>
1179 +#include <stdlib.h>
1180 +#include <string.h>
1181 +#include <cgi.h>
1182 +
1183 +#ifndef MAX_UPLOAD_KB
1184 +#define MAX_UPLOAD_KB 2048
1185 +#endif
1186 +#define TEMPDIR "/tmp"
1187 +
1188 +static int global_upload_size = 0;
1189 +static int ReadMimeEncodedInput(char *qs);
1190 +static var_handler do_putvar = NULL;
1191 +
1192 +/*
1193 + * Convert 2 char hex string into char it represents
1194 + * (from http://www.jmarshall.com/easy/cgi)
1195 + */
1196 +static char x2c (char *what) {
1197 + char digit;
1198 +
1199 + digit=(what[0] >= 'A' ? ((what[0] & 0xdf) - 'A')+10 : (what[0] - '0'));
1200 + digit *=16;
1201 + digit+=(what[1] >= 'A' ? ((what[1] & 0xdf) - 'A')+10 : (what[1] - '0'));
1202 +
1203 + return digit;
1204 +}
1205 +
1206 +/*
1207 + * unsescape %xx to the characters they represent
1208 + */
1209 +
1210 +static void unescape_url (char *url) {
1211 + int i,j;
1212 +
1213 + for (i=0, j=0; url[j]; ++i, ++j) {
1214 + if ((url[i] = url[j]) == '%') {
1215 + url[i] = x2c(&url[j+1]);
1216 + j+=2;
1217 + }
1218 + }
1219 + url[i]='\0';
1220 +}
1221 +
1222 +static inline void put_var(vartype type, char *var)
1223 +{
1224 + char *val;
1225 +
1226 + if (!do_putvar)
1227 + return;
1228 +
1229 + val = strchr(var, '=');
1230 + if (!val)
1231 + return;
1232 +
1233 + *val = 0;
1234 + val++;
1235 + do_putvar(type, var, val);
1236 +
1237 + return;
1238 +}
1239 +
1240 +
1241 +/* CookieVars ()
1242 + * if HTTP_COOKIE is passed as an environment variable,
1243 + * attempt to parse its values into environment variables
1244 + */
1245 +static void CookieVars (void)
1246 +{
1247 + char *qs;
1248 + char *token;
1249 +
1250 + if (getenv("HTTP_COOKIE") != NULL)
1251 + qs=strdup(getenv("HTTP_COOKIE"));
1252 + else
1253 + return;
1254 +
1255 + /** split on; to extract name value pairs */
1256 + token=strtok(qs, ";");
1257 + while (token) {
1258 + // skip leading spaces
1259 + while ( token[0] == ' ' )
1260 + token++;
1261 +
1262 + put_var(COOKIE_VAR, token);
1263 +
1264 + token = strtok(NULL, ";");
1265 + }
1266 + free (qs);
1267 +}
1268 +
1269 +/*
1270 + * Read cgi variables from query string, and put in environment
1271 + */
1272 +static int ReadCGIQueryString (void)
1273 +{
1274 + char *qs;
1275 + char *token;
1276 + int i;
1277 +
1278 + if (getenv("QUERY_STRING") != NULL)
1279 + qs=strdup(getenv("QUERY_STRING"));
1280 + else
1281 + return 0;
1282 +
1283 + /* change plusses into spaces */
1284 + for (i=0; qs[i]; i++ ) { if (qs[i] == '+' ) { qs[i] = ' ';} };
1285 +
1286 + /** split on & and ; to extract name value pairs */
1287 +
1288 + token=strtok(qs, "&;");
1289 + while (token) {
1290 + unescape_url(token);
1291 + put_var(FORM_VAR, token);
1292 + token=strtok(NULL, "&;");
1293 + }
1294 + free(qs);
1295 +
1296 + return 0;
1297 +}
1298 +
1299 +
1300 +/*
1301 + * Read cgi variables from stdin (for POST queries)
1302 + * (oh... and if its mime-encoded file upload, we save the
1303 + * file to /tmp; and return the name of the tmp file
1304 + * the cgi script is responsible for disposing of the tmp file
1305 + */
1306 +
1307 +static int ReadCGIPOSTValues (void) {
1308 + char *qs;
1309 + int content_length;
1310 + int i;
1311 + char *token;
1312 +
1313 +
1314 + if (getenv("CONTENT_LENGTH") == NULL)
1315 + return(-1);
1316 + else
1317 + content_length = atoi(getenv("CONTENT_LENGTH"));
1318 +
1319 + /* protect ourselves from 20GB file uploads */
1320 + if (content_length > MAX_UPLOAD_KB * 1024 ) {
1321 + /* But we need to finish reading the content */
1322 + while ( fread( &i, sizeof(int), 1, stdin) == 1 );
1323 + return -1;
1324 + }
1325 +
1326 + if (!(qs=malloc(content_length+1)))
1327 + return -1;
1328 +
1329 + /* set the buffer to null, so that a browser messing with less
1330 + data than content_length won't buffer underrun us */
1331 + memset(qs, 0 ,content_length+1);
1332 +
1333 + if ((!fread(qs,content_length,1,stdin) &&
1334 + (content_length > 0)
1335 + && !feof(stdin))) {
1336 +
1337 + free(qs);
1338 + return -1;
1339 + }
1340 +
1341 + if (getenv("CONTENT_TYPE") && (strncasecmp(getenv("CONTENT_TYPE"), "multipart/form-data", 19) == 0)) {
1342 + /* This is a mime request, we need to go to the mime handler */
1343 + i=ReadMimeEncodedInput(qs);
1344 + free(qs);
1345 +
1346 + return i;
1347 + }
1348 +
1349 + /* change plusses into spaces */
1350 + for (i=0; qs[i]; i++ ) { if (qs[i] == '+' ) { qs[i] = ' ';} };
1351 +
1352 + /** split on & and ; to extract name value pairs */
1353 + token=strtok(qs, "&;");
1354 + while (token) {
1355 + unescape_url(token);
1356 + put_var(FORM_VAR, token);
1357 + token=strtok(NULL, "&;");
1358 + }
1359 +
1360 + free(qs);
1361 +
1362 + return 0;
1363 +}
1364 +
1365 +/*
1366 + * LineToStr - Scans char and replaces the first "\n" with a "\0";
1367 + * If it finds a "\r", it does that to; (fix DOS brokennes) returns
1368 + * the length of the string;
1369 + */
1370 +static int LineToStr (char *string, size_t max) {
1371 + size_t offset=0;
1372 +
1373 + while ((offset < max) && (string[offset] != '\n') && (string[offset] != '\r'))
1374 + offset++;
1375 +
1376 + if (string[offset] == '\r') {
1377 + string[offset]='\0';
1378 + offset++;
1379 + }
1380 + if (string[offset] == '\n') {
1381 + string[offset]='\0';
1382 + offset++;
1383 + }
1384 +
1385 + return offset;
1386 +}
1387 +
1388 +
1389 +/*
1390 + * ReadMimeEncodedInput - handles things that are mime encoded
1391 + * takes a pointer to the input; returns 0 on success
1392 + */
1393 +
1394 +static int ReadMimeEncodedInput(char *qs)
1395 +{
1396 + char *boundary;
1397 + char *ct;
1398 + int i;
1399 + int datastart;
1400 + size_t cl;
1401 + size_t offset;
1402 + char *envname;
1403 + char *filename;
1404 + char *ptr;
1405 + int line;
1406 + char tmpname[] = TEMPDIR "/XXXXXX";
1407 + int fd;
1408 + /* we should only get here if the content type was set. Segfaults happen
1409 + if Content_Type is null */
1410 +
1411 + if (getenv("CONTENT_LENGTH") == NULL)
1412 + /* No content length?! */
1413 + return(-1);
1414 +
1415 + cl=atoi(getenv("CONTENT_LENGTH"));
1416 +
1417 + /* we do this 'cause we can't mess with the real env. variable - it would
1418 + * overwrite the environment - I tried.
1419 + */
1420 + i=strlen(getenv("CONTENT_TYPE"))+1;
1421 + ct=malloc(i);
1422 + if (ct)
1423 + memcpy(ct, getenv("CONTENT_TYPE"), i);
1424 + else
1425 + return(-1);
1426 +
1427 + i=(int) NULL;
1428 + if (ct != NULL) {
1429 + while (i < strlen(ct) && (strncmp("boundary=", &ct[i], 9) != 0))
1430 + i++;
1431 + }
1432 + if (i == strlen(ct)) {
1433 + /* no boundary informaiton found */
1434 + free(ct);
1435 + return -1;
1436 + }
1437 + boundary=&ct[i+7];
1438 + /* add two leading -- to the boundary */
1439 + boundary[0]='-';
1440 + boundary[1]='-';
1441 +
1442 + /* begin the big loop. Look for:
1443 + --boundary
1444 + Content-Disposition: form-data; name="......."
1445 + ....
1446 + <blank line>
1447 + content
1448 + --boundary
1449 + Content-Disposition: form-data; name="....." filename="....."
1450 + ...
1451 + <blank line>
1452 + --boundary--
1453 + eof
1454 + */
1455 +
1456 + offset=0;
1457 + while (offset < cl) {
1458 + /* first look for boundary */
1459 + while ((offset < cl) && (memcmp(&qs[offset], boundary, strlen(boundary))))
1460 + offset++;
1461 +
1462 + /* if we got here and we ran off the end, its an error */
1463 + if (offset >= cl) {
1464 + free(ct);
1465 + return -1;
1466 + }
1467 +
1468 + /* if the two characters following the boundary are --, */
1469 + /* then we are at the end, exit */
1470 + if (memcmp(&qs[offset+strlen(boundary)], "--", 2) == 0) {
1471 + offset+=2;
1472 + break;
1473 + }
1474 + /* find where the offset should be */
1475 + line=LineToStr(&qs[offset], cl-offset);
1476 + offset+=line;
1477 +
1478 + /* Now we're going to look for content-disposition */
1479 + line=LineToStr(&qs[offset], cl-offset);
1480 + if (strncasecmp(&qs[offset], "Content-Disposition", 19) != 0) {
1481 + /* hmm... content disposition was not where we expected it */
1482 + free(ct);
1483 + return -1;
1484 + }
1485 + /* Found it, so let's go find "name=" */
1486 + if (!(envname=strstr(&qs[offset], "name="))) {
1487 + /* now name= is missing?! */
1488 + free(ct);
1489 + return(-1);
1490 + } else
1491 + envname+=6;
1492 +
1493 + /* is there a filename tag? */
1494 + if ((filename=strstr(&qs[offset], "filename="))!= NULL)
1495 + filename+=10;
1496 + else
1497 + filename=NULL;
1498 +
1499 + /* make envname and filename ASCIIZ */
1500 + for (i=0; (envname[i] != '"') && (envname[i] != '\0'); i++);
1501 +
1502 + envname[i] = '\0';
1503 + if (filename) {
1504 + for (i=0; (filename[i] != '"') && (filename[i] != '\0'); i++);
1505 + filename[i] = '\0';
1506 + }
1507 + offset+=line;
1508 +
1509 + /* Ok, by some miracle, we have the name; let's skip till we */
1510 + /* come to a blank line */
1511 + line=LineToStr(&qs[offset], cl-offset);
1512 + while (strlen(&qs[offset]) > 1) {
1513 + offset+=line;
1514 + line=LineToStr(&qs[offset], cl-offset);
1515 + }
1516 + offset+=line;
1517 + datastart=offset;
1518 + /* And we go back to looking for a boundary */
1519 + while ((offset < cl) && (memcmp(&qs[offset], boundary, strlen(boundary))))
1520 + offset++;
1521 +
1522 + /* strip [cr] lf */
1523 + if ((qs[offset-1] == '\n') && (qs[offset-2] == '\r'))
1524 + offset-=2;
1525 + else
1526 + offset-=1;
1527 +
1528 + qs[offset]=0;
1529 +
1530 + /* ok, at this point, we know where the name is, and we know */
1531 + /* where the content is... we have to do one of two things */
1532 + /* based on whether its a file or not */
1533 + if (filename==NULL) { /* its not a file, so its easy */
1534 + /* just jam the content after the name */
1535 + memcpy(&envname[strlen(envname)+1], &qs[datastart], offset-datastart+1);
1536 + envname[strlen(envname)]='=';
1537 + put_var(FORM_VAR, envname);
1538 + } else { /* handle the fileupload case */
1539 + if (offset-datastart) { /* only if they uploaded */
1540 + if ( global_upload_size == 0 ) {
1541 + return -1;
1542 + }
1543 + /* stuff in the filename */
1544 + ptr= calloc ( sizeof (char), strlen(envname)+strlen(filename)+2+5 );
1545 + sprintf (ptr, "%s_name=%s", envname, filename);
1546 + put_var(FORM_VAR, ptr);
1547 + free(ptr);
1548 +
1549 + fd=mkstemp(tmpname);
1550 +
1551 + if (fd == -1)
1552 + return(-1);
1553 +
1554 + write(fd, &qs[datastart], offset-datastart);
1555 + close(fd);
1556 + ptr= calloc (sizeof(char), strlen(envname)+strlen(tmpname)+2);
1557 + sprintf (ptr, "%s=%s", envname, tmpname);
1558 + put_var(FORM_VAR, ptr);
1559 + free(ptr);
1560 + }
1561 + }
1562 + }
1563 + free(ct);
1564 + return 0;
1565 +}
1566 +
1567 +
1568 +/*-------------------------------------------------------------------------
1569 + *
1570 + * Main
1571 + *
1572 + *------------------------------------------------------------------------*/
1573 +
1574 +int cgi_init(var_handler putvar_handler)
1575 +{
1576 + int retval = 0;
1577 +
1578 + do_putvar = putvar_handler;
1579 +
1580 + /* Read the current environment into our chain */
1581 + CookieVars();
1582 + if (getenv("REQUEST_METHOD")) {
1583 + if (strcasecmp(getenv("REQUEST_METHOD"), "GET") == 0)
1584 + retval = ReadCGIQueryString();
1585 +
1586 + if (strcasecmp(getenv("REQUEST_METHOD"), "POST") == 0)
1587 + retval = ReadCGIPOSTValues();
1588 + }
1589 +
1590 + return retval;
1591 +}
1592 diff -purN bb.old/libbb/Kbuild bb.dev/libbb/Kbuild
1593 --- bb.old/libbb/Kbuild 2007-05-20 04:17:05.004197480 +0200
1594 +++ bb.dev/libbb/Kbuild 2007-05-20 04:16:47.181906880 +0200
1595 @@ -118,3 +118,6 @@ lib-$(CONFIG_GREP) += xregcomp.o
1596 lib-$(CONFIG_MDEV) += xregcomp.o
1597 lib-$(CONFIG_LESS) += xregcomp.o
1598 lib-$(CONFIG_DEVFSD) += xregcomp.o
1599 +
1600 +lib-$(CONFIG_AWX) += cgi.o
1601 +