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27a8534d519fa6cfa7f8df30fc6d519be044f520
[openwrt/openwrt.git] / package / busybox / patches / 920-awx.patch
1 diff -urN 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 22:40:48.183743936 +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 @@
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 @@
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 @@
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 @@
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 @@
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 @@
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 @@
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 -urN 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 2007-05-23 22:37:38.547183608 +0200
101 @@ -0,0 +1,633 @@
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 = NULL, *res;
154 + int len = 0, _pos = 0, i, tr_abort = 0;
155 + static char *backlog = NULL;
156 +
157 + if (backlog && line) {
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 = xstrdup(l);
174 + tr_abort = 1;
175 + break;
176 + }
177 +
178 + *p = 0;
179 + len += strlen((tok[_pos++] = l));
180 + *p2 = 0;
181 + len += strlen((tok[_pos++] = translate_lookup(p + strlen(TR_START))));
182 +
183 + l = p2;
184 + l += strlen(TR_END);
185 + }
186 + len++;
187 +
188 + p = xmalloc(len + 1);
189 + *p = 0;
190 + res = p;
191 + for (i = 0; i < _pos; i++) {
192 + strcat(p, tok[i]);
193 + p += strlen(tok[i]);
194 + }
195 + if (backlog) {
196 + free(backlog);
197 + backlog = NULL;
198 + }
199 + if (tr_abort && p2)
200 + backlog = p2;
201 +
202 + return res;
203 +}
204 +
205 +/* hook for intercepting awk's use of puts. used for running all printed strings
206 + * through the translation system */
207 +static inline int fputs_hook (__const char *__restrict __s, FILE *__restrict __stream)
208 +{
209 + if (lang_inuse && (__stream == stdout)) {
210 + int ret;
211 + char *str;
212 +
213 + str = translate_line((char *) __s);
214 + ret = fputs(str, __stream);
215 + free(str);
216 +
217 + return ret;
218 + }
219 +
220 + return fputs(__s, __stream);
221 +}
222 +
223 +static var *init_lang(var *res, var *args, int nargs)
224 +{
225 + if (!lstr)
226 + lstr = hash_init();
227 +
228 + lang_inuse = 1;
229 + return res;
230 +}
231 +
232 +
233 +/* load and parse language file */
234 +static void load_lang_file(char *file)
235 +{
236 + FILE *f;
237 + char *b, *name, *value;
238 + char buf1[LINE_BUF];
239 +
240 + if ((f = fopen(file, "r")) == NULL)
241 + return;
242 +
243 + while (!feof(f) && (fgets(buf1, LINE_BUF - 1, f) != NULL)) {
244 + b = buf1;
245 + if (*b == '#')
246 + continue; /* skip comments */
247 +
248 + while (isspace(*b))
249 + b++; /* skip leading spaces */
250 + if (!*b)
251 + continue;
252 +
253 + name = b;
254 + if ((b = strstr(name, "=>")) == NULL)
255 + continue; /* separator not found */
256 +
257 + value = b + 2;
258 + if (!*value)
259 + continue;
260 +
261 + *b = 0;
262 + for (b--; isspace(*b); b--)
263 + *b = 0; /* remove trailing spaces */
264 +
265 + while (isspace(*value))
266 + value++; /* skip leading spaces */
267 +
268 + for (b = value + strlen(value) - 1; isspace(*b); b--)
269 + *b = 0; /* remove trailing spaces */
270 +
271 + if (!*value)
272 + continue;
273 +
274 + setvar_s(findvar(lstr,name), value);
275 + }
276 +
277 + fclose(f);
278 +}
279 +
280 +static var *load_lang(var *res, var *args, int nargs)
281 +{
282 + const char *langfmt = "/usr/lib/webif/lang/%s.txt";
283 + char lbuf[LINE_BUF];
284 + char *lang;
285 +
286 + if (!lang_inuse)
287 + init_lang(res, args, nargs);
288 +
289 + lang = getvar_s(args);
290 + if (!lang || !strcmp(lang, ""))
291 + return res;
292 +
293 + sprintf(lbuf, langfmt, lang);
294 + load_lang_file(lbuf);
295 +
296 + return res;
297 +}
298 +
299 +/* read the contents of an entire file */
300 +static char *get_file(char *fname)
301 +{
302 + FILE *F;
303 + char *s = NULL;
304 + int i, j, flen;
305 +
306 + F = fopen(fname, "r");
307 + if (!F) {
308 + return NULL;
309 + }
310 +
311 + if (fseek(F, 0, SEEK_END) == 0) {
312 + flen = ftell(F);
313 + s = (char *)xmalloc(flen+4);
314 + fseek(F, 0, SEEK_SET);
315 + i = 1 + fread(s+1, 1, flen, F);
316 + } else {
317 + for (i=j=1; j>0; i+=j) {
318 + s = (char *)xrealloc(s, i+4096);
319 + j = fread(s+i, 1, 4094, F);
320 + }
321 + }
322 +
323 + s[i] = '\0';
324 + fclose(F);
325 + return s;
326 +}
327 +
328 +
329 +/* parse_include():
330 + *
331 + * taken from parse_program from awk.c
332 + * END{} is not parsed here, and BEGIN{} is executed immediately
333 + */
334 +static void parse_include(char *p)
335 +{
336 + uint32_t tclass;
337 + chain *initseq = NULL;
338 + chain tmp;
339 + func *f;
340 + var *v, *tv;
341 +
342 + tv = nvalloc(1);
343 + memset(&tmp, 0, sizeof(tmp));
344 + pos = p;
345 + t.lineno = 1;
346 + while ((tclass = next_token(TC_EOF | TC_OPSEQ |
347 + TC_OPTERM | TC_BEGIN | TC_FUNCDECL)) != TC_EOF) {
348 + if (tclass & TC_OPTERM)
349 + continue;
350 +
351 + seq = &tmp;
352 + if (tclass & TC_BEGIN) {
353 + initseq = xzalloc(sizeof(chain));
354 + seq = initseq;
355 + chain_group();
356 + } else if (tclass & TC_FUNCDECL) {
357 + next_token(TC_FUNCTION);
358 + pos++;
359 + f = newfunc(t.string);
360 + f->type = AWKFUNC;
361 + f->x.body.first = NULL;
362 + f->nargs = 0;
363 + while (next_token(TC_VARIABLE | TC_SEQTERM) & TC_VARIABLE) {
364 + v = findvar(ahash, t.string);
365 + v->x.aidx = (f->nargs)++;
366 +
367 + if (next_token(TC_COMMA | TC_SEQTERM) & TC_SEQTERM)
368 + break;
369 + }
370 + seq = &(f->x.body);
371 + chain_group();
372 + clear_array(ahash);
373 + }
374 + }
375 + if (initseq && initseq->first)
376 + tv = evaluate(initseq->first, tv);
377 + nvfree(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, var *tv)
420 +{
421 + chain body;
422 + node *n;
423 +
424 + memset(&body, 0, sizeof(body));
425 + pos = str;
426 + seq = &body;
427 +
428 + /* end of expression, assume that there's going to be a free byte
429 + * at the end of the string that can be used for the ')' */
430 + strcat(str + strlen(str), "}");
431 + n = parse_expr(TC_GRPTERM);
432 + if (!n)
433 + return NULL;
434 +
435 + return evaluate(n, tv);
436 +}
437 +
438 +static inline void print_translate(char *s)
439 +{
440 + char *str = s;
441 + if (lang_inuse)
442 + str = translate_line(s);
443 + fputs(str, stdout);
444 + fflush(stdout);
445 + if (lang_inuse)
446 + free(str);
447 +}
448 +
449 +static void render_element(struct template_cb *tcb, struct template_element *e)
450 +{
451 + var *v;
452 + char *s, *s2;
453 + int i;
454 +
455 + if (!e || !e->var)
456 + return;
457 + lineno = e->line;
458 + switch (e->t) {
459 + case T_TEXT:
460 + s = malloc(strlen(e->var) + 2);
461 + strcpy(s, e->var);
462 + print_translate(s);
463 + free(s);
464 + break;
465 + case T_CODE:
466 + s = malloc(strlen(e->var) + 2);
467 + strcpy(s, e->var);
468 + v = nvalloc(1);
469 + s2 = strdup(getvar_s(parse_awk(s, v)));
470 + nvfree(v);
471 + print_translate(s2);
472 + free(s);
473 + free(s2);
474 + break;
475 + case T_IF:
476 + s = malloc(strlen(e->var) + 2);
477 + strcpy(s, e->var);
478 + v = nvalloc(1);
479 + i = istrue(parse_awk(s, v));
480 + nvfree(v);
481 + free(s);
482 +
483 + if (i)
484 + execute_template(tcb, e->sub);
485 + else if (e->sub2)
486 + execute_template(tcb, e->sub2);
487 + break;
488 + case T_FOR: {
489 + v = newvar(e->var);
490 + hashwalk_init(v, iamarray(findvar(vhash, e->in)));
491 + while (hashwalk_next(v)) {
492 + execute_template(tcb, e->sub);
493 + }
494 + clrvar(v);
495 + }
496 + break;
497 + default:
498 + break;
499 + }
500 +}
501 +
502 +/* awk method render(), which opens a template file and processes all awk ssi calls */
503 +static void render_file(char *filename)
504 +{
505 + struct template_cb tcb;
506 + struct template_element *e;
507 + FILE *f;
508 + char *oldprg;
509 + int oldlnr;
510 +
511 + if (!filename)
512 + return;
513 +
514 + oldlnr = lineno;
515 + oldprg = programname;
516 + programname = filename;
517 +
518 + f = fopen(filename, "r");
519 + if (!f)
520 + return;
521 +
522 + memset(&tcb, 0, sizeof(tcb));
523 + tcb.handle_element = render_element;
524 + e = parse_template(&tcb, f);
525 + execute_template(&tcb, e);
526 + free_template(&tcb, e);
527 + fclose(f);
528 + programname = oldprg;
529 + lineno = oldlnr;
530 +}
531 +
532 +static var *render(var *res, var *args, int nargs)
533 +{
534 + char *s;
535 +
536 + s = getvar_s(args);
537 + if (!s)
538 + return res;
539 +
540 + render_file(s);
541 +
542 + return res;
543 +}
544 +
545 +/* Call render, but only if this function hasn't been called already */
546 +static int layout_rendered = 0;
547 +static var *render_layout(var *res, var *args, int nargs)
548 +{
549 + if (layout_rendered)
550 + return res;
551 + layout_rendered = 1;
552 + return render(res, args, nargs);
553 +}
554 +
555 +/* registers a global c function for the awk interpreter */
556 +static void register_cfunc(char *name, awk_cfunc cfunc, int nargs)
557 +{
558 + func *f;
559 +
560 + f = newfunc(name);
561 + f->type = CFUNC;
562 + f->x.cfunc = cfunc;
563 + f->nargs = nargs;
564 +}
565 +
566 +static void putvar(vartype type, char *name, char *value)
567 +{
568 + if (type != FORM_VAR)
569 + return;
570 +
571 + setvar_u(findvar(formvar, name), value);
572 +}
573 +
574 +static char *cgi_getvar(char *name)
575 +{
576 + if (!formvar) {
577 + formvar = hash_init();
578 + cgi_init(putvar);
579 + }
580 +
581 + if (!formvar || !name)
582 + return NULL;
583 +
584 + return getvar_s(findvar(formvar, name));
585 +}
586 +
587 +/* function call for accessing cgi form variables */
588 +static var *getvar(var *res, var *args, int nargs)
589 +{
590 + char *s;
591 + char *svar;
592 +
593 + s = getvar_s(args);
594 + if (!s)
595 + return res;
596 +
597 + svar = cgi_getvar(s);
598 + if (!svar)
599 + return res;
600 +
601 + setvar_u(res, svar);
602 +
603 + return res;
604 +}
605 +
606 +/* call an awk function without arguments by string reference */
607 +static var *call(var *res, var *args, int nargs)
608 +{
609 + char *s = getvar_s(args);
610 + func *f;
611 +
612 + if (!s)
613 + goto done;
614 +
615 + f = newfunc(s);
616 + if (f && f->type == AWKFUNC && f->x.body.first)
617 + return evaluate(f->x.body.first, res);
618 +
619 +done:
620 + return res;
621 +}
622 +
623 +
624 +static int run_awxscript(char *name)
625 +{
626 + var tv, *layout, *action;
627 + char *tmp, *s = NULL;
628 +
629 + zero_out_var(&tv);
630 + programname = name;
631 +
632 + /* read the main controller source */
633 + s = get_file(programname);
634 + if (!s) {
635 + fprintf(stderr, "Could not open file\n");
636 + return 1;
637 + }
638 + parse_program(s+1);
639 + free(s);
640 +
641 +
642 + /* set some defaults for ACTION and LAYOUT, which will have special meaning */
643 + layout = newvar("LAYOUT");
644 + setvar_s(layout, "views/layout.ahtml");
645 +
646 + /* run the BEGIN {} block */
647 + evaluate(beginseq.first, &tv);
648 +
649 + action = newvar("ACTION");
650 + if (!(strlen(getvar_s(action)) > 0)) {
651 + tmp = cgi_getvar("action");
652 + if (!tmp || (strlen(tmp) <= 0))
653 + tmp = strdup("default");
654 +
655 + setvar_p(action, tmp);
656 + }
657 +
658 + /* call the action (precedence: begin block override > cgi parameter > "default") */
659 + tmp = xmalloc(strlen(getvar_s(action)) + 7);
660 + sprintf(tmp, "handle_%s", getvar_s(action));
661 + setvar_s(action, tmp);
662 + call(&tv, action, 1);
663 + free(tmp);
664 +
665 + /* render the selected layout, will do nothing if render_layout has been called from awk */
666 + render_layout(&tv, layout, 1);
667 +
668 + return 0;
669 +}
670 +
671 +
672 +/* main awx processing function. called from awk_main() */
673 +static int do_awx(int argc, char **argv)
674 +{
675 + int ret = -1;
676 + var tv;
677 + int i, c;
678 + char **args = argv;
679 +
680 + zero_out_var(&tv);
681 +
682 + /* register awk C callbacks */
683 + register_cfunc("getvar", getvar, 1);
684 + register_cfunc("render", render, 1);
685 + register_cfunc("render_layout", render_layout, 1);
686 + register_cfunc("call", call, 1);
687 + register_cfunc("include", include, 1);
688 + register_cfunc("init_lang", init_lang, 1);
689 + register_cfunc("load_lang", load_lang, 1);
690 +
691 + if (!is_awx)
692 + return 0;
693 +
694 + /* fill in ARGV array */
695 + setvar_i(V[ARGC], argc + 1);
696 + setari_u(V[ARGV], 0, "awx");
697 + i = 0;
698 + while (*args)
699 + setari_u(V[ARGV], ++i, *args++);
700 +
701 + while((c = getopt(argc, argv, "i:f:")) != EOF) {
702 + switch(c) {
703 + case 'i':
704 + programname = optarg;
705 + include_file(optarg);
706 + break;
707 + case 'f':
708 + ret = 0;
709 + programname = optarg;
710 + render_file(optarg);
711 + goto done;
712 + }
713 + }
714 + argc -= optind;
715 + argv += optind;
716 +
717 + if (argc < 1) {
718 + fprintf(stderr, "Invalid argument.\n");
719 + goto done;
720 + }
721 +
722 + ret = run_awxscript(*argv);
723 +
724 +done:
725 + exit(ret);
726 +}
727 +
728 +/* entry point for awx applet */
729 +int awx_main(int argc, char **argv)
730 +{
731 + is_awx = 1;
732 + return awk_main(argc, argv);
733 +}
734 +
735 diff -urN bb.old/editors/awx_parser.h bb.dev/editors/awx_parser.h
736 --- bb.old/editors/awx_parser.h 1970-01-01 01:00:00.000000000 +0100
737 +++ bb.dev/editors/awx_parser.h 2007-05-20 22:30:31.380512280 +0200
738 @@ -0,0 +1,38 @@
739 +#ifndef __TEMPLATE_PARSER_H
740 +#define __TEMPLATE_PARSER_H
741 +
742 +enum type {
743 + T_TEXT,
744 + T_FOR,
745 + T_IF,
746 + T_CODE
747 +};
748 +
749 +struct template_element;
750 +struct template_cb;
751 +
752 +struct template_cb {
753 + void *(*prepare_code)(struct template_element *);
754 + void (*handle_element)(struct template_cb *, struct template_element *);
755 + void (*free_code)(struct template_element *);
756 +};
757 +
758 +struct template_element {
759 + enum type t;
760 + char *var;
761 + char *in;
762 + int line;
763 + void *priv;
764 + struct template_element *parent;
765 + struct template_element *sub;
766 + struct template_element *sub2;
767 + struct template_element *prev;
768 + struct template_element *next;
769 +};
770 +
771 +
772 +struct template_element *parse_template(struct template_cb *cb, FILE *in);
773 +void execute_template(struct template_cb *cb, struct template_element *e);
774 +void free_template(struct template_cb *cb, struct template_element *e);
775 +
776 +#endif
777 diff -urN bb.old/editors/awx_parser.l bb.dev/editors/awx_parser.l
778 --- bb.old/editors/awx_parser.l 1970-01-01 01:00:00.000000000 +0100
779 +++ bb.dev/editors/awx_parser.l 2007-05-23 19:13:40.459655704 +0200
780 @@ -0,0 +1,302 @@
781 +%{
782 +#include <stdio.h>
783 +#include <string.h>
784 +#include <stdlib.h>
785 +#include "busybox.h"
786 +#include "awx_parser.h"
787 +
788 +enum {
789 + S_INIT,
790 + S_TEXT,
791 + S_CODE,
792 + S_IF_START,
793 + S_FOR_START,
794 + S_FOR_IN,
795 + S_END,
796 + S_ELSE,
797 + S_EOF
798 +};
799 +int state;
800 +
801 +#undef DEBUG
802 +#ifdef DEBUG
803 +char *statestr[] = {
804 + [S_INIT] = "S_INIT",
805 + [S_TEXT] = "S_TEXT",
806 + [S_CODE] = "S_CODE",
807 + [S_IF_START] = "S_IF_START",
808 + [S_FOR_START] = "S_FOR_START",
809 + [S_FOR_IN] = "S_FOR_IN",
810 + [S_EOF] = "S_EOF"
811 +};
812 +
813 +char *typestr[] = {
814 + [T_TEXT] = "T_TEXT",
815 + [T_FOR] = "T_FOR",
816 + [T_IF] = "T_IF",
817 + [T_CODE] = "T_CODE"
818 +};
819 +#endif
820 +
821 +static struct template_cb *parse_cb;
822 +static struct template_element *cur, *head;
823 +static char *textbuf;
824 +static unsigned int buflen;
825 +static unsigned int buf_offset;
826 +static int _lnr = 0;
827 +
828 +static void buf_realloc(void)
829 +{
830 + buflen *= 2;
831 + textbuf = xrealloc(textbuf, buflen);
832 +}
833 +
834 +static void parse_error(char *str)
835 +{
836 + fprintf(stderr, "Parse error%s%s\n", (str ? ": " : "!"), (str ?: ""));
837 + exit(255);
838 +}
839 +
840 +
841 +static struct template_element *new_template_element(struct template_element *parent)
842 +{
843 + struct template_element *ptr;
844 +
845 + ptr = xzalloc(sizeof(struct template_element));
846 + ptr->parent = parent;
847 + return ptr;
848 +}
849 +
850 +static inline void next_template_element(void)
851 +{
852 + cur->next = new_template_element(cur->parent);
853 + cur->next->prev = cur;
854 + cur = cur->next;
855 +}
856 +
857 +static void addtext(char *text)
858 +{
859 + while(buf_offset + strlen(text) + 1 > buflen)
860 + buf_realloc();
861 +
862 + buf_offset += sprintf(&textbuf[buf_offset], "%s", text);
863 +}
864 +
865 +static void set_state(int newstate)
866 +{
867 + char *ptr;
868 +
869 +#ifdef DEBUG
870 + static int _rec = 0;
871 + fprintf(stderr, "DEBUG(%d): %s => %s: %s\n", _rec, statestr[state], statestr[newstate], textbuf);
872 +#endif
873 + ptr = xstrdup(textbuf);
874 + if (state == S_FOR_IN)
875 + cur->in = ptr;
876 + else
877 + cur->var = ptr;
878 +
879 + if (parse_cb && (cur->t == T_CODE) && parse_cb->prepare_code)
880 + parse_cb->prepare_code(cur);
881 +
882 + buf_offset = 0;
883 + *textbuf = 0;
884 +
885 + switch(newstate) {
886 +#if 0
887 + case S_EOF:
888 + if (cur->parent)
889 + parse_error();
890 + break;
891 +#endif
892 + case S_FOR_START:
893 + if (ptr || !cur->prev)
894 + next_template_element();
895 + cur->t = T_FOR;
896 + break;
897 + case S_IF_START:
898 + if (ptr || !cur->prev)
899 + next_template_element();
900 + cur->t = T_IF;
901 + break;
902 + case S_ELSE:
903 + cur = cur->parent;
904 + if (!cur)
905 + parse_error("'@else' without parent element");
906 + cur->sub2 = new_template_element(cur);
907 + cur = cur->sub2;
908 + newstate = S_TEXT;
909 + break;
910 + case S_END:
911 +#ifdef DEBUG
912 + _rec--;
913 +#endif
914 + cur = cur->parent;
915 + if (!cur)
916 + parse_error("'@end' without parent element");
917 +
918 + next_template_element();
919 + cur->t = T_TEXT;
920 + newstate = S_TEXT;
921 + break;
922 + case S_TEXT:
923 + switch (cur->t) {
924 + case T_CODE:
925 + next_template_element();
926 + break;
927 + case T_IF:
928 + case T_FOR:
929 +#ifdef DEBUG
930 + _rec++;
931 +#endif
932 + cur->sub = new_template_element(cur);
933 + cur = cur->sub;
934 + break;
935 + default:
936 + break;
937 + }
938 + cur->t = T_TEXT;
939 + break;
940 + case S_CODE:
941 + if (ptr || !cur->prev)
942 + next_template_element();
943 + cur->t = T_CODE;
944 + break;
945 + default:
946 + break;
947 + }
948 + cur->line = _lnr;
949 + state = newstate;
950 +}
951 +
952 +%}
953 +
954 +%%
955 +"<%"[ \n\t]*"@if"[ \n\t]+ {
956 + if (state == S_TEXT)
957 + set_state(S_IF_START);
958 + else
959 + REJECT;
960 +}
961 +
962 +"<%"[ \n\t]*"@for"[ \n\t]+ {
963 + if (state == S_TEXT)
964 + set_state(S_FOR_START);
965 + else
966 + REJECT;
967 +}
968 +
969 +[ \n\t]+"in"[ \n\t]+ {
970 + if (state == S_FOR_START)
971 + set_state(S_FOR_IN);
972 + else
973 + REJECT;
974 +}
975 +
976 +"<%"[ \n\t]*"@end"[ \n\t]*%> {
977 + if (state != S_TEXT)
978 + REJECT;
979 + set_state(S_END);
980 +}
981 +
982 +"<%"[ \n\t]*"@else"[ \n\t]*%> {
983 + if (state != S_TEXT)
984 + REJECT;
985 + set_state(S_ELSE);
986 +}
987 +
988 +"<%" {
989 + if (state != S_TEXT)
990 + parse_error("'<%' cannot be nested");
991 + set_state(S_CODE);
992 +}
993 +
994 +[ \n\t]"%>" {
995 + if (state == S_TEXT)
996 + REJECT;
997 + set_state(S_TEXT);
998 +}
999 +
1000 +\n {
1001 + _lnr++;
1002 + if (state == S_TEXT)
1003 + addtext(yytext);
1004 +}
1005 +. {
1006 + addtext(yytext);
1007 +}
1008 +
1009 +
1010 +%%
1011 +
1012 +
1013 +void execute_template(struct template_cb *cb, struct template_element *e)
1014 +{
1015 + static int rec = 0;
1016 +
1017 + while (e) {
1018 +#ifdef DEBUG
1019 + fprintf(stderr, "DEBUG: execute(%d)\t%s\n", rec, typestr[e->t]);
1020 +#endif
1021 + rec++;
1022 + if (cb->handle_element)
1023 + cb->handle_element(cb, e);
1024 + rec--;
1025 + e = e->next;
1026 + }
1027 +}
1028 +
1029 +int yywrap()
1030 +{
1031 + set_state(S_EOF);
1032 + return 1;
1033 +}
1034 +
1035 +struct template_element *parse_template(struct template_cb *cb, FILE *in)
1036 +{
1037 + _lnr = 1;
1038 + buf_offset = 0;
1039 + state = S_TEXT;
1040 + parse_cb = cb;
1041 +
1042 + buflen = 4096;
1043 + textbuf = xzalloc(buflen);
1044 +
1045 + head = xzalloc(sizeof(struct template_element));
1046 + head->t = T_TEXT;
1047 + cur = head;
1048 +
1049 + yyin = in;
1050 + yylex();
1051 +
1052 + return head;
1053 +}
1054 +
1055 +void free_template(struct template_cb *cb, struct template_element *e)
1056 +{
1057 + struct template_element *next;
1058 + return;
1059 + if (!e)
1060 + return;
1061 +
1062 + switch (e->t) {
1063 + case T_CODE:
1064 + if (cb->free_code)
1065 + cb->free_code(e);
1066 + break;
1067 + case T_FOR:
1068 + case T_IF:
1069 + free_template(cb, e->sub);
1070 + break;
1071 + default:
1072 + break;
1073 + }
1074 + if (e->var)
1075 + free(e->var);
1076 + if (e->in)
1077 + free(e->in);
1078 +
1079 + next = e->next;
1080 + free(e);
1081 + return free_template(cb, next);
1082 +}
1083 diff -urN bb.old/editors/Config.in bb.dev/editors/Config.in
1084 --- bb.old/editors/Config.in 2007-05-20 04:17:05.003197632 +0200
1085 +++ bb.dev/editors/Config.in 2007-05-20 22:30:31.380512280 +0200
1086 @@ -12,6 +12,13 @@
1087 Awk is used as a pattern scanning and processing language. This is
1088 the BusyBox implementation of that programming language.
1089
1090 +config AWX
1091 + bool "Enable awx (awk web extension)"
1092 + default n
1093 + depends on AWK
1094 + help
1095 + awx - awk web extension
1096 +
1097 config FEATURE_AWK_MATH
1098 bool "Enable math functions (requires libm)"
1099 default y
1100 diff -urN bb.old/editors/Kbuild bb.dev/editors/Kbuild
1101 --- bb.old/editors/Kbuild 2007-03-18 17:59:37.000000000 +0100
1102 +++ bb.dev/editors/Kbuild 2007-05-20 22:30:31.381512128 +0200
1103 @@ -10,3 +10,12 @@
1104 lib-$(CONFIG_PATCH) += patch.o
1105 lib-$(CONFIG_SED) += sed.o
1106 lib-$(CONFIG_VI) += vi.o
1107 +lib-$(CONFIG_AWX) += awx_parser.o
1108 +
1109 +editors/awx_parser.c: editors/awx_parser.l editors/awx_parser.h
1110 + @flex $<
1111 + @mv lex.yy.c $@
1112 +
1113 +editors/awx_parser.o: editors/awx_parser.c FORCE
1114 + $(call cmd,force_checksrc)
1115 + $(call if_changed_rule,cc_o_c)
1116 diff -urN bb.old/include/applets.h bb.dev/include/applets.h
1117 --- bb.old/include/applets.h 2007-05-20 04:17:05.003197632 +0200
1118 +++ bb.dev/include/applets.h 2007-05-20 22:30:31.381512128 +0200
1119 @@ -60,6 +60,7 @@
1120 USE_ARPING(APPLET(arping, _BB_DIR_USR_BIN, _BB_SUID_NEVER))
1121 USE_ASH(APPLET_NOUSAGE(ash, ash, _BB_DIR_BIN, _BB_SUID_NEVER))
1122 USE_AWK(APPLET(awk, _BB_DIR_USR_BIN, _BB_SUID_NEVER))
1123 +USE_AWX(APPLET_NOUSAGE(awx, awx, _BB_DIR_USR_BIN, _BB_SUID_NEVER))
1124 USE_BASENAME(APPLET(basename, _BB_DIR_USR_BIN, _BB_SUID_NEVER))
1125 USE_BBCONFIG(APPLET(bbconfig, _BB_DIR_BIN, _BB_SUID_NEVER))
1126 //USE_BBSH(APPLET(bbsh, _BB_DIR_BIN, _BB_SUID_NEVER))
1127 diff -urN bb.old/include/cgi.h bb.dev/include/cgi.h
1128 --- bb.old/include/cgi.h 1970-01-01 01:00:00.000000000 +0100
1129 +++ bb.dev/include/cgi.h 2007-05-20 22:30:31.381512128 +0200
1130 @@ -0,0 +1,8 @@
1131 +#ifndef CGI_H
1132 +#define CGI_H
1133 +
1134 +typedef enum { FORM_VAR, COOKIE_VAR } vartype;
1135 +typedef void (*var_handler) (vartype, char *, char *);
1136 +int cgi_init(var_handler);
1137 +
1138 +#endif
1139 diff -urN bb.old/libbb/cgi.c bb.dev/libbb/cgi.c
1140 --- bb.old/libbb/cgi.c 1970-01-01 01:00:00.000000000 +0100
1141 +++ bb.dev/libbb/cgi.c 2007-05-20 22:30:31.382511976 +0200
1142 @@ -0,0 +1,457 @@
1143 +/* --------------------------------------------------------------------------
1144 + * functions for processing cgi form data
1145 + * Copyright (C) 2007 by Felix Fietkau <nbd@openwrt.org>
1146 + *
1147 + * parts taken from the core of haserl.cgi - a poor-man's php for embedded/lightweight environments
1148 + * $Id: haserl.c,v 1.13 2004/11/10 17:59:35 nangel Exp $
1149 + * Copyright (c) 2003,2004 Nathan Angelacos (nangel@users.sourceforge.net)
1150 + *
1151 + * This program is free software; you can redistribute it and/or modify
1152 + * it under the terms of the GNU General Public License as published by
1153 + * the Free Software Foundation; either version 2 of the License, or
1154 + * (at your option) any later version.
1155 + *
1156 + * This program is distributed in the hope that it will be useful,
1157 + * but WITHOUT ANY WARRANTY; without even the implied warranty of
1158 + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
1159 + * General Public License for more details.
1160 + *
1161 + * You should have received a copy of the GNU General Public License
1162 + * along with this program; if not, write to the Free Software
1163 + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
1164 + *
1165 + * -----
1166 + * The x2c() and unescape_url() routines were taken from
1167 + * http://www.jmarshall.com/easy/cgi/getcgi.c.txt
1168 + *
1169 + * The comments in that text file state:
1170 + *
1171 + *** Written in 1996 by James Marshall, james@jmarshall.com, except
1172 + *** that the x2c() and unescape_url() routines were lifted directly
1173 + *** from NCSA's sample program util.c, packaged with their HTTPD.
1174 + *** For the latest, see http://www.jmarshall.com/easy/cgi/
1175 + * -----
1176 + *
1177 + ------------------------------------------------------------------------- */
1178 +
1179 +#include <stdio.h>
1180 +#include <unistd.h>
1181 +#include <time.h>
1182 +#include <sys/mman.h>
1183 +#include <sys/types.h>
1184 +#include <sys/wait.h>
1185 +#include <sys/stat.h>
1186 +#include <sys/fcntl.h>
1187 +#include <stdlib.h>
1188 +#include <string.h>
1189 +#include <cgi.h>
1190 +
1191 +#ifndef MAX_UPLOAD_KB
1192 +#define MAX_UPLOAD_KB 2048
1193 +#endif
1194 +#define TEMPDIR "/tmp"
1195 +
1196 +static int global_upload_size = 0;
1197 +static int ReadMimeEncodedInput(char *qs);
1198 +static var_handler do_putvar = NULL;
1199 +
1200 +/*
1201 + * Convert 2 char hex string into char it represents
1202 + * (from http://www.jmarshall.com/easy/cgi)
1203 + */
1204 +static char x2c (char *what) {
1205 + char digit;
1206 +
1207 + digit=(what[0] >= 'A' ? ((what[0] & 0xdf) - 'A')+10 : (what[0] - '0'));
1208 + digit *=16;
1209 + digit+=(what[1] >= 'A' ? ((what[1] & 0xdf) - 'A')+10 : (what[1] - '0'));
1210 +
1211 + return digit;
1212 +}
1213 +
1214 +/*
1215 + * unsescape %xx to the characters they represent
1216 + */
1217 +
1218 +static void unescape_url (char *url) {
1219 + int i,j;
1220 +
1221 + for (i=0, j=0; url[j]; ++i, ++j) {
1222 + if ((url[i] = url[j]) == '%') {
1223 + url[i] = x2c(&url[j+1]);
1224 + j+=2;
1225 + }
1226 + }
1227 + url[i]='\0';
1228 +}
1229 +
1230 +static inline void put_var(vartype type, char *var)
1231 +{
1232 + char *val;
1233 +
1234 + if (!do_putvar)
1235 + return;
1236 +
1237 + val = strchr(var, '=');
1238 + if (!val)
1239 + return;
1240 +
1241 + *val = 0;
1242 + val++;
1243 + do_putvar(type, var, val);
1244 +
1245 + return;
1246 +}
1247 +
1248 +
1249 +/* CookieVars ()
1250 + * if HTTP_COOKIE is passed as an environment variable,
1251 + * attempt to parse its values into environment variables
1252 + */
1253 +static void CookieVars (void)
1254 +{
1255 + char *qs;
1256 + char *token;
1257 +
1258 + if (getenv("HTTP_COOKIE") != NULL)
1259 + qs=strdup(getenv("HTTP_COOKIE"));
1260 + else
1261 + return;
1262 +
1263 + /** split on; to extract name value pairs */
1264 + token=strtok(qs, ";");
1265 + while (token) {
1266 + // skip leading spaces
1267 + while ( token[0] == ' ' )
1268 + token++;
1269 +
1270 + put_var(COOKIE_VAR, token);
1271 +
1272 + token = strtok(NULL, ";");
1273 + }
1274 + free (qs);
1275 +}
1276 +
1277 +/*
1278 + * Read cgi variables from query string, and put in environment
1279 + */
1280 +static int ReadCGIQueryString (void)
1281 +{
1282 + char *qs;
1283 + char *token;
1284 + int i;
1285 +
1286 + if (getenv("QUERY_STRING") != NULL)
1287 + qs=strdup(getenv("QUERY_STRING"));
1288 + else
1289 + return 0;
1290 +
1291 + /* change plusses into spaces */
1292 + for (i=0; qs[i]; i++ ) { if (qs[i] == '+' ) { qs[i] = ' ';} };
1293 +
1294 + /** split on & and ; to extract name value pairs */
1295 +
1296 + token=strtok(qs, "&;");
1297 + while (token) {
1298 + unescape_url(token);
1299 + put_var(FORM_VAR, token);
1300 + token=strtok(NULL, "&;");
1301 + }
1302 + free(qs);
1303 +
1304 + return 0;
1305 +}
1306 +
1307 +
1308 +/*
1309 + * Read cgi variables from stdin (for POST queries)
1310 + * (oh... and if its mime-encoded file upload, we save the
1311 + * file to /tmp; and return the name of the tmp file
1312 + * the cgi script is responsible for disposing of the tmp file
1313 + */
1314 +
1315 +static int ReadCGIPOSTValues (void) {
1316 + char *qs;
1317 + int content_length;
1318 + int i;
1319 + char *token;
1320 +
1321 +
1322 + if (getenv("CONTENT_LENGTH") == NULL)
1323 + return(-1);
1324 + else
1325 + content_length = atoi(getenv("CONTENT_LENGTH"));
1326 +
1327 + /* protect ourselves from 20GB file uploads */
1328 + if (content_length > MAX_UPLOAD_KB * 1024 ) {
1329 + /* But we need to finish reading the content */
1330 + while ( fread( &i, sizeof(int), 1, stdin) == 1 );
1331 + return -1;
1332 + }
1333 +
1334 + if (!(qs=malloc(content_length+1)))
1335 + return -1;
1336 +
1337 + /* set the buffer to null, so that a browser messing with less
1338 + data than content_length won't buffer underrun us */
1339 + memset(qs, 0 ,content_length+1);
1340 +
1341 + if ((!fread(qs,content_length,1,stdin) &&
1342 + (content_length > 0)
1343 + && !feof(stdin))) {
1344 +
1345 + free(qs);
1346 + return -1;
1347 + }
1348 +
1349 + if (getenv("CONTENT_TYPE") && (strncasecmp(getenv("CONTENT_TYPE"), "multipart/form-data", 19) == 0)) {
1350 + /* This is a mime request, we need to go to the mime handler */
1351 + i=ReadMimeEncodedInput(qs);
1352 + free(qs);
1353 +
1354 + return i;
1355 + }
1356 +
1357 + /* change plusses into spaces */
1358 + for (i=0; qs[i]; i++ ) { if (qs[i] == '+' ) { qs[i] = ' ';} };
1359 +
1360 + /** split on & and ; to extract name value pairs */
1361 + token=strtok(qs, "&;");
1362 + while (token) {
1363 + unescape_url(token);
1364 + put_var(FORM_VAR, token);
1365 + token=strtok(NULL, "&;");
1366 + }
1367 +
1368 + free(qs);
1369 +
1370 + return 0;
1371 +}
1372 +
1373 +/*
1374 + * LineToStr - Scans char and replaces the first "\n" with a "\0";
1375 + * If it finds a "\r", it does that to; (fix DOS brokennes) returns
1376 + * the length of the string;
1377 + */
1378 +static int LineToStr (char *string, size_t max) {
1379 + size_t offset=0;
1380 +
1381 + while ((offset < max) && (string[offset] != '\n') && (string[offset] != '\r'))
1382 + offset++;
1383 +
1384 + if (string[offset] == '\r') {
1385 + string[offset]='\0';
1386 + offset++;
1387 + }
1388 + if (string[offset] == '\n') {
1389 + string[offset]='\0';
1390 + offset++;
1391 + }
1392 +
1393 + return offset;
1394 +}
1395 +
1396 +
1397 +/*
1398 + * ReadMimeEncodedInput - handles things that are mime encoded
1399 + * takes a pointer to the input; returns 0 on success
1400 + */
1401 +
1402 +static int ReadMimeEncodedInput(char *qs)
1403 +{
1404 + char *boundary;
1405 + char *ct;
1406 + int i;
1407 + int datastart;
1408 + size_t cl;
1409 + size_t offset;
1410 + char *envname;
1411 + char *filename;
1412 + char *ptr;
1413 + int line;
1414 + char tmpname[] = TEMPDIR "/XXXXXX";
1415 + int fd;
1416 + /* we should only get here if the content type was set. Segfaults happen
1417 + if Content_Type is null */
1418 +
1419 + if (getenv("CONTENT_LENGTH") == NULL)
1420 + /* No content length?! */
1421 + return(-1);
1422 +
1423 + cl=atoi(getenv("CONTENT_LENGTH"));
1424 +
1425 + /* we do this 'cause we can't mess with the real env. variable - it would
1426 + * overwrite the environment - I tried.
1427 + */
1428 + i=strlen(getenv("CONTENT_TYPE"))+1;
1429 + ct=malloc(i);
1430 + if (ct)
1431 + memcpy(ct, getenv("CONTENT_TYPE"), i);
1432 + else
1433 + return(-1);
1434 +
1435 + i=(int) NULL;
1436 + if (ct != NULL) {
1437 + while (i < strlen(ct) && (strncmp("boundary=", &ct[i], 9) != 0))
1438 + i++;
1439 + }
1440 + if (i == strlen(ct)) {
1441 + /* no boundary informaiton found */
1442 + free(ct);
1443 + return -1;
1444 + }
1445 + boundary=&ct[i+7];
1446 + /* add two leading -- to the boundary */
1447 + boundary[0]='-';
1448 + boundary[1]='-';
1449 +
1450 + /* begin the big loop. Look for:
1451 + --boundary
1452 + Content-Disposition: form-data; name="......."
1453 + ....
1454 + <blank line>
1455 + content
1456 + --boundary
1457 + Content-Disposition: form-data; name="....." filename="....."
1458 + ...
1459 + <blank line>
1460 + --boundary--
1461 + eof
1462 + */
1463 +
1464 + offset=0;
1465 + while (offset < cl) {
1466 + /* first look for boundary */
1467 + while ((offset < cl) && (memcmp(&qs[offset], boundary, strlen(boundary))))
1468 + offset++;
1469 +
1470 + /* if we got here and we ran off the end, its an error */
1471 + if (offset >= cl) {
1472 + free(ct);
1473 + return -1;
1474 + }
1475 +
1476 + /* if the two characters following the boundary are --, */
1477 + /* then we are at the end, exit */
1478 + if (memcmp(&qs[offset+strlen(boundary)], "--", 2) == 0) {
1479 + offset+=2;
1480 + break;
1481 + }
1482 + /* find where the offset should be */
1483 + line=LineToStr(&qs[offset], cl-offset);
1484 + offset+=line;
1485 +
1486 + /* Now we're going to look for content-disposition */
1487 + line=LineToStr(&qs[offset], cl-offset);
1488 + if (strncasecmp(&qs[offset], "Content-Disposition", 19) != 0) {
1489 + /* hmm... content disposition was not where we expected it */
1490 + free(ct);
1491 + return -1;
1492 + }
1493 + /* Found it, so let's go find "name=" */
1494 + if (!(envname=strstr(&qs[offset], "name="))) {
1495 + /* now name= is missing?! */
1496 + free(ct);
1497 + return(-1);
1498 + } else
1499 + envname+=6;
1500 +
1501 + /* is there a filename tag? */
1502 + if ((filename=strstr(&qs[offset], "filename="))!= NULL)
1503 + filename+=10;
1504 + else
1505 + filename=NULL;
1506 +
1507 + /* make envname and filename ASCIIZ */
1508 + for (i=0; (envname[i] != '"') && (envname[i] != '\0'); i++);
1509 +
1510 + envname[i] = '\0';
1511 + if (filename) {
1512 + for (i=0; (filename[i] != '"') && (filename[i] != '\0'); i++);
1513 + filename[i] = '\0';
1514 + }
1515 + offset+=line;
1516 +
1517 + /* Ok, by some miracle, we have the name; let's skip till we */
1518 + /* come to a blank line */
1519 + line=LineToStr(&qs[offset], cl-offset);
1520 + while (strlen(&qs[offset]) > 1) {
1521 + offset+=line;
1522 + line=LineToStr(&qs[offset], cl-offset);
1523 + }
1524 + offset+=line;
1525 + datastart=offset;
1526 + /* And we go back to looking for a boundary */
1527 + while ((offset < cl) && (memcmp(&qs[offset], boundary, strlen(boundary))))
1528 + offset++;
1529 +
1530 + /* strip [cr] lf */
1531 + if ((qs[offset-1] == '\n') && (qs[offset-2] == '\r'))
1532 + offset-=2;
1533 + else
1534 + offset-=1;
1535 +
1536 + qs[offset]=0;
1537 +
1538 + /* ok, at this point, we know where the name is, and we know */
1539 + /* where the content is... we have to do one of two things */
1540 + /* based on whether its a file or not */
1541 + if (filename==NULL) { /* its not a file, so its easy */
1542 + /* just jam the content after the name */
1543 + memcpy(&envname[strlen(envname)+1], &qs[datastart], offset-datastart+1);
1544 + envname[strlen(envname)]='=';
1545 + put_var(FORM_VAR, envname);
1546 + } else { /* handle the fileupload case */
1547 + if (offset-datastart) { /* only if they uploaded */
1548 + if ( global_upload_size == 0 ) {
1549 + return -1;
1550 + }
1551 + /* stuff in the filename */
1552 + ptr= calloc ( sizeof (char), strlen(envname)+strlen(filename)+2+5 );
1553 + sprintf (ptr, "%s_name=%s", envname, filename);
1554 + put_var(FORM_VAR, ptr);
1555 + free(ptr);
1556 +
1557 + fd=mkstemp(tmpname);
1558 +
1559 + if (fd == -1)
1560 + return(-1);
1561 +
1562 + write(fd, &qs[datastart], offset-datastart);
1563 + close(fd);
1564 + ptr= calloc (sizeof(char), strlen(envname)+strlen(tmpname)+2);
1565 + sprintf (ptr, "%s=%s", envname, tmpname);
1566 + put_var(FORM_VAR, ptr);
1567 + free(ptr);
1568 + }
1569 + }
1570 + }
1571 + free(ct);
1572 + return 0;
1573 +}
1574 +
1575 +
1576 +/*-------------------------------------------------------------------------
1577 + *
1578 + * Main
1579 + *
1580 + *------------------------------------------------------------------------*/
1581 +
1582 +int cgi_init(var_handler putvar_handler)
1583 +{
1584 + int retval = 0;
1585 +
1586 + do_putvar = putvar_handler;
1587 +
1588 + /* Read the current environment into our chain */
1589 + CookieVars();
1590 + if (getenv("REQUEST_METHOD")) {
1591 + if (strcasecmp(getenv("REQUEST_METHOD"), "GET") == 0)
1592 + retval = ReadCGIQueryString();
1593 +
1594 + if (strcasecmp(getenv("REQUEST_METHOD"), "POST") == 0)
1595 + retval = ReadCGIPOSTValues();
1596 + }
1597 +
1598 + return retval;
1599 +}
1600 diff -urN bb.old/libbb/Kbuild bb.dev/libbb/Kbuild
1601 --- bb.old/libbb/Kbuild 2007-05-20 04:17:05.004197480 +0200
1602 +++ bb.dev/libbb/Kbuild 2007-05-20 22:30:31.382511976 +0200
1603 @@ -118,3 +118,6 @@
1604 lib-$(CONFIG_MDEV) += xregcomp.o
1605 lib-$(CONFIG_LESS) += xregcomp.o
1606 lib-$(CONFIG_DEVFSD) += xregcomp.o
1607 +
1608 +lib-$(CONFIG_AWX) += cgi.o
1609 +
OpenWrt Source Repository