1 | /*
|
---|
2 | * Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
|
---|
3 | * Released under the terms of the GNU GPL v2.0.
|
---|
4 | */
|
---|
5 |
|
---|
6 | #include <sys/stat.h>
|
---|
7 | #include <ctype.h>
|
---|
8 | #include <stdio.h>
|
---|
9 | #include <stdlib.h>
|
---|
10 | #include <string.h>
|
---|
11 | #include <unistd.h>
|
---|
12 |
|
---|
13 | #define LKC_DIRECT_LINK
|
---|
14 | #include "lkc.h"
|
---|
15 |
|
---|
16 | const char conf_def_filename[] = ".config";
|
---|
17 |
|
---|
18 | const char conf_defname[] = "defconfig";
|
---|
19 |
|
---|
20 | const char *conf_confnames[] = {
|
---|
21 | ".config",
|
---|
22 | conf_defname,
|
---|
23 | NULL,
|
---|
24 | };
|
---|
25 |
|
---|
26 | static char *conf_expand_value(const char *in)
|
---|
27 | {
|
---|
28 | struct symbol *sym;
|
---|
29 | const char *src;
|
---|
30 | static char res_value[SYMBOL_MAXLENGTH];
|
---|
31 | char *dst, name[SYMBOL_MAXLENGTH];
|
---|
32 |
|
---|
33 | res_value[0] = 0;
|
---|
34 | dst = name;
|
---|
35 | while ((src = strchr(in, '$'))) {
|
---|
36 | strncat(res_value, in, src - in);
|
---|
37 | src++;
|
---|
38 | dst = name;
|
---|
39 | while (isalnum(*src) || *src == '_')
|
---|
40 | *dst++ = *src++;
|
---|
41 | *dst = 0;
|
---|
42 | sym = sym_lookup(name, 0);
|
---|
43 | sym_calc_value(sym);
|
---|
44 | strcat(res_value, sym_get_string_value(sym));
|
---|
45 | in = src;
|
---|
46 | }
|
---|
47 | strcat(res_value, in);
|
---|
48 |
|
---|
49 | return res_value;
|
---|
50 | }
|
---|
51 |
|
---|
52 | char *conf_get_default_confname(void)
|
---|
53 | {
|
---|
54 | struct stat buf;
|
---|
55 | static char fullname[PATH_MAX+1];
|
---|
56 | char *env, *name;
|
---|
57 |
|
---|
58 | name = conf_expand_value(conf_defname);
|
---|
59 | env = getenv(SRCTREE);
|
---|
60 | if (env) {
|
---|
61 | sprintf(fullname, "%s/%s", env, name);
|
---|
62 | if (!stat(fullname, &buf))
|
---|
63 | return fullname;
|
---|
64 | }
|
---|
65 | return name;
|
---|
66 | }
|
---|
67 |
|
---|
68 | int conf_read(const char *name)
|
---|
69 | {
|
---|
70 | FILE *in = NULL;
|
---|
71 | char line[1024];
|
---|
72 | char *p, *p2;
|
---|
73 | int lineno = 0;
|
---|
74 | struct symbol *sym;
|
---|
75 | struct property *prop;
|
---|
76 | struct expr *e;
|
---|
77 | int i;
|
---|
78 |
|
---|
79 | if (name) {
|
---|
80 | in = zconf_fopen(name);
|
---|
81 | } else {
|
---|
82 | const char **names = conf_confnames;
|
---|
83 | while ((name = *names++)) {
|
---|
84 | name = conf_expand_value(name);
|
---|
85 | in = zconf_fopen(name);
|
---|
86 | if (in) {
|
---|
87 | printf("#\n"
|
---|
88 | "# using defaults found in %s\n"
|
---|
89 | "#\n", name);
|
---|
90 | break;
|
---|
91 | }
|
---|
92 | }
|
---|
93 | }
|
---|
94 |
|
---|
95 | if (!in)
|
---|
96 | return 1;
|
---|
97 |
|
---|
98 | for_all_symbols(i, sym) {
|
---|
99 | sym->flags |= SYMBOL_NEW | SYMBOL_CHANGED;
|
---|
100 | sym->flags &= ~SYMBOL_VALID;
|
---|
101 | switch (sym->type) {
|
---|
102 | case S_INT:
|
---|
103 | case S_HEX:
|
---|
104 | case S_STRING:
|
---|
105 | free(sym->user.val);
|
---|
106 | default:
|
---|
107 | sym->user.val = NULL;
|
---|
108 | sym->user.tri = no;
|
---|
109 | }
|
---|
110 | }
|
---|
111 |
|
---|
112 | while (fgets(line, sizeof(line), in)) {
|
---|
113 | lineno++;
|
---|
114 | sym = NULL;
|
---|
115 | switch (line[0]) {
|
---|
116 | case '#':
|
---|
117 | if (line[1]!=' ')
|
---|
118 | continue;
|
---|
119 | p = strchr(line + 2, ' ');
|
---|
120 | if (!p)
|
---|
121 | continue;
|
---|
122 | *p++ = 0;
|
---|
123 | if (strncmp(p, "is not set", 10))
|
---|
124 | continue;
|
---|
125 | sym = sym_find(line + 2);
|
---|
126 | if (!sym) {
|
---|
127 | fprintf(stderr, "%s:%d: trying to assign nonexistent symbol %s\n", name, lineno, line + 2);
|
---|
128 | break;
|
---|
129 | }
|
---|
130 | switch (sym->type) {
|
---|
131 | case S_BOOLEAN:
|
---|
132 | case S_TRISTATE:
|
---|
133 | sym->user.tri = no;
|
---|
134 | sym->flags &= ~SYMBOL_NEW;
|
---|
135 | break;
|
---|
136 | default:
|
---|
137 | ;
|
---|
138 | }
|
---|
139 | break;
|
---|
140 |
|
---|
141 | case 'A' ... 'Z':
|
---|
142 | p = strchr(line, '=');
|
---|
143 | if (!p)
|
---|
144 | continue;
|
---|
145 | *p++ = 0;
|
---|
146 | p2 = strchr(p, '\n');
|
---|
147 | if (p2)
|
---|
148 | *p2 = 0;
|
---|
149 | sym = sym_find(line);
|
---|
150 | if (!sym) {
|
---|
151 | fprintf(stderr, "%s:%d: trying to assign nonexistent symbol %s\n", name, lineno, line);
|
---|
152 | break;
|
---|
153 | }
|
---|
154 | switch (sym->type) {
|
---|
155 | case S_TRISTATE:
|
---|
156 | if (p[0] == 'm') {
|
---|
157 | sym->user.tri = mod;
|
---|
158 | sym->flags &= ~SYMBOL_NEW;
|
---|
159 | break;
|
---|
160 | }
|
---|
161 | case S_BOOLEAN:
|
---|
162 | if (p[0] == 'y') {
|
---|
163 | sym->user.tri = yes;
|
---|
164 | sym->flags &= ~SYMBOL_NEW;
|
---|
165 | break;
|
---|
166 | }
|
---|
167 | if (p[0] == 'n') {
|
---|
168 | sym->user.tri = no;
|
---|
169 | sym->flags &= ~SYMBOL_NEW;
|
---|
170 | break;
|
---|
171 | }
|
---|
172 | break;
|
---|
173 | case S_STRING:
|
---|
174 | if (*p++ != '"')
|
---|
175 | break;
|
---|
176 | for (p2 = p; (p2 = strpbrk(p2, "\"\\")); p2++) {
|
---|
177 | if (*p2 == '"') {
|
---|
178 | *p2 = 0;
|
---|
179 | break;
|
---|
180 | }
|
---|
181 | memmove(p2, p2 + 1, strlen(p2));
|
---|
182 | }
|
---|
183 | if (!p2) {
|
---|
184 | fprintf(stderr, "%s:%d: invalid string found\n", name, lineno);
|
---|
185 | exit(1);
|
---|
186 | }
|
---|
187 | case S_INT:
|
---|
188 | case S_HEX:
|
---|
189 | if (sym_string_valid(sym, p)) {
|
---|
190 | sym->user.val = strdup(p);
|
---|
191 | sym->flags &= ~SYMBOL_NEW;
|
---|
192 | } else {
|
---|
193 | fprintf(stderr, "%s:%d: symbol value '%s' invalid for %s\n", name, lineno, p, sym->name);
|
---|
194 | exit(1);
|
---|
195 | }
|
---|
196 | break;
|
---|
197 | default:
|
---|
198 | ;
|
---|
199 | }
|
---|
200 | break;
|
---|
201 | case '\n':
|
---|
202 | break;
|
---|
203 | default:
|
---|
204 | continue;
|
---|
205 | }
|
---|
206 | if (sym && sym_is_choice_value(sym)) {
|
---|
207 | struct symbol *cs = prop_get_symbol(sym_get_choice_prop(sym));
|
---|
208 | switch (sym->user.tri) {
|
---|
209 | case no:
|
---|
210 | break;
|
---|
211 | case mod:
|
---|
212 | if (cs->user.tri == yes)
|
---|
213 | /* warn? */;
|
---|
214 | break;
|
---|
215 | case yes:
|
---|
216 | if (cs->user.tri != no)
|
---|
217 | /* warn? */;
|
---|
218 | cs->user.val = sym;
|
---|
219 | break;
|
---|
220 | }
|
---|
221 | cs->user.tri = E_OR(cs->user.tri, sym->user.tri);
|
---|
222 | cs->flags &= ~SYMBOL_NEW;
|
---|
223 | }
|
---|
224 | }
|
---|
225 | fclose(in);
|
---|
226 |
|
---|
227 | if (modules_sym)
|
---|
228 | sym_calc_value(modules_sym);
|
---|
229 | for_all_symbols(i, sym) {
|
---|
230 | sym_calc_value(sym);
|
---|
231 | if (sym_has_value(sym) && !sym_is_choice_value(sym)) {
|
---|
232 | if (sym->visible == no)
|
---|
233 | sym->flags |= SYMBOL_NEW;
|
---|
234 | switch (sym->type) {
|
---|
235 | case S_STRING:
|
---|
236 | case S_INT:
|
---|
237 | case S_HEX:
|
---|
238 | if (!sym_string_within_range(sym, sym->user.val))
|
---|
239 | sym->flags |= SYMBOL_NEW;
|
---|
240 | default:
|
---|
241 | break;
|
---|
242 | }
|
---|
243 | }
|
---|
244 | if (!sym_is_choice(sym))
|
---|
245 | continue;
|
---|
246 | prop = sym_get_choice_prop(sym);
|
---|
247 | for (e = prop->expr; e; e = e->left.expr)
|
---|
248 | if (e->right.sym->visible != no)
|
---|
249 | sym->flags |= e->right.sym->flags & SYMBOL_NEW;
|
---|
250 | }
|
---|
251 |
|
---|
252 | sym_change_count = 1;
|
---|
253 |
|
---|
254 | return 0;
|
---|
255 | }
|
---|
256 |
|
---|
257 | struct menu *next_menu(struct menu *menu)
|
---|
258 | {
|
---|
259 | if (menu->list) return menu->list;
|
---|
260 | do {
|
---|
261 | if (menu->next) {
|
---|
262 | menu = menu->next;
|
---|
263 | break;
|
---|
264 | }
|
---|
265 | } while ((menu = menu->parent));
|
---|
266 |
|
---|
267 | return menu;
|
---|
268 | }
|
---|
269 |
|
---|
270 | #define SYMBOL_FORCEWRITE (1<<31)
|
---|
271 |
|
---|
272 | int conf_write(const char *name)
|
---|
273 | {
|
---|
274 | FILE *out, *out_h;
|
---|
275 | struct symbol *sym;
|
---|
276 | struct menu *menu;
|
---|
277 | const char *basename;
|
---|
278 | char dirname[128], tmpname[128], newname[128];
|
---|
279 | int type, l;
|
---|
280 | const char *str;
|
---|
281 |
|
---|
282 | /* busybox`s code */
|
---|
283 | const char *opt_name;
|
---|
284 | int use_flg;
|
---|
285 |
|
---|
286 | dirname[0] = 0;
|
---|
287 | if (name && name[0]) {
|
---|
288 | struct stat st;
|
---|
289 | char *slash;
|
---|
290 |
|
---|
291 | if (!stat(name, &st) && S_ISDIR(st.st_mode)) {
|
---|
292 | strcpy(dirname, name);
|
---|
293 | strcat(dirname, "/");
|
---|
294 | basename = conf_def_filename;
|
---|
295 | } else if ((slash = strrchr(name, '/'))) {
|
---|
296 | int size = slash - name + 1;
|
---|
297 | memcpy(dirname, name, size);
|
---|
298 | dirname[size] = 0;
|
---|
299 | if (slash[1])
|
---|
300 | basename = slash + 1;
|
---|
301 | else
|
---|
302 | basename = conf_def_filename;
|
---|
303 | } else
|
---|
304 | basename = name;
|
---|
305 | } else
|
---|
306 | basename = conf_def_filename;
|
---|
307 |
|
---|
308 | sprintf(newname, "%s.tmpconfig.%d", dirname, (int)getpid());
|
---|
309 | out = fopen(newname, "w");
|
---|
310 | if (!out)
|
---|
311 | return 1;
|
---|
312 | out_h = NULL;
|
---|
313 | if (!name) {
|
---|
314 | out_h = fopen(".tmpconfig.h", "w");
|
---|
315 | if (!out_h)
|
---|
316 | return 1;
|
---|
317 | }
|
---|
318 | fprintf(out, "#\n"
|
---|
319 | "# Automatically generated make config: don't edit\n"
|
---|
320 | "#\n");
|
---|
321 |
|
---|
322 | /* busybox`s code */
|
---|
323 | if (out_h) {
|
---|
324 | fprintf(out_h, "#ifndef BB_CONFIG_H\n#define BB_CONFIG_H\n");
|
---|
325 | fprintf(out_h, "/*\n"
|
---|
326 | " * Automatically generated header file: don't edit\n"
|
---|
327 | " */\n\n"
|
---|
328 | "/* Version Number */\n"
|
---|
329 | "#define BB_VER \"%s\"\n"
|
---|
330 | "#define BB_BT \"%s\"\n",
|
---|
331 | getenv("VERSION"),
|
---|
332 | getenv("BUILDTIME"));
|
---|
333 | if (getenv("EXTRA_VERSION"))
|
---|
334 | fprintf(out_h, "#define BB_EXTRA_VERSION \"%s\"\n",
|
---|
335 | getenv("EXTRA_VERSION"));
|
---|
336 | fprintf(out_h, "\n");
|
---|
337 | }
|
---|
338 | /* end busybox`s code */
|
---|
339 |
|
---|
340 | if (!sym_change_count)
|
---|
341 | sym_clear_all_valid();
|
---|
342 |
|
---|
343 | /* Force write of all non-duplicate symbols. */
|
---|
344 |
|
---|
345 | /* Write out everything by default. */
|
---|
346 | for(menu = rootmenu.list; menu; menu = next_menu(menu))
|
---|
347 | if (menu->sym) menu->sym->flags |= SYMBOL_FORCEWRITE;
|
---|
348 |
|
---|
349 | menu = rootmenu.list;
|
---|
350 | while (menu) {
|
---|
351 | sym = menu->sym;
|
---|
352 | if (!sym) {
|
---|
353 | if (!menu_is_visible(menu))
|
---|
354 | goto next;
|
---|
355 | str = menu_get_prompt(menu);
|
---|
356 | fprintf(out, "\n"
|
---|
357 | "#\n"
|
---|
358 | "# %s\n"
|
---|
359 | "#\n", str);
|
---|
360 | if (out_h)
|
---|
361 | fprintf(out_h, "\n"
|
---|
362 | "/*\n"
|
---|
363 | " * %s\n"
|
---|
364 | " */\n", str);
|
---|
365 | } else if (!(sym->flags & SYMBOL_CHOICE)) {
|
---|
366 | sym_calc_value(sym);
|
---|
367 | if (!(sym->flags & SYMBOL_FORCEWRITE))
|
---|
368 | goto next;
|
---|
369 |
|
---|
370 | sym->flags &= ~SYMBOL_FORCEWRITE;
|
---|
371 | type = sym->type;
|
---|
372 | if (type == S_TRISTATE) {
|
---|
373 | sym_calc_value(modules_sym);
|
---|
374 | if (modules_sym->curr.tri == no)
|
---|
375 | type = S_BOOLEAN;
|
---|
376 | }
|
---|
377 |
|
---|
378 | /* busybox`s code */
|
---|
379 | opt_name = strchr(sym->name, '_');
|
---|
380 | if(opt_name == NULL)
|
---|
381 | opt_name = sym->name;
|
---|
382 | else
|
---|
383 | opt_name++;
|
---|
384 | use_flg = 1;
|
---|
385 | /* end busybox`s code */
|
---|
386 |
|
---|
387 | switch (type) {
|
---|
388 | case S_BOOLEAN:
|
---|
389 | case S_TRISTATE:
|
---|
390 | switch (sym_get_tristate_value(sym)) {
|
---|
391 | case no:
|
---|
392 | fprintf(out, "# %s is not set\n", sym->name);
|
---|
393 | if (out_h)
|
---|
394 | fprintf(out_h, "#undef %s\n", sym->name);
|
---|
395 | use_flg = 0; /* busybox`s code */
|
---|
396 | break;
|
---|
397 | case mod:
|
---|
398 | #if 0 /* busybox`s code */
|
---|
399 | fprintf(out, "%s=m\n", sym->name);
|
---|
400 | if (out_h)
|
---|
401 | fprintf(out_h, "#define %s_MODULE 1\n", sym->name);
|
---|
402 | #endif /* busybox`s code */
|
---|
403 | break;
|
---|
404 | case yes:
|
---|
405 | fprintf(out, "%s=y\n", sym->name);
|
---|
406 | if (out_h)
|
---|
407 | fprintf(out_h, "#define %s 1\n", sym->name);
|
---|
408 | break;
|
---|
409 | }
|
---|
410 | break;
|
---|
411 | case S_STRING:
|
---|
412 | // fix me
|
---|
413 | str = sym_get_string_value(sym);
|
---|
414 | fprintf(out, "%s=\"", sym->name);
|
---|
415 | if (out_h)
|
---|
416 | fprintf(out_h, "#define %s \"", sym->name);
|
---|
417 | do {
|
---|
418 | l = strcspn(str, "\"\\");
|
---|
419 | if (l) {
|
---|
420 | fwrite(str, l, 1, out);
|
---|
421 | if (out_h)
|
---|
422 | fwrite(str, l, 1, out_h);
|
---|
423 | }
|
---|
424 | str += l;
|
---|
425 | while (*str == '\\' || *str == '"') {
|
---|
426 | fprintf(out, "\\%c", *str);
|
---|
427 | if (out_h)
|
---|
428 | fprintf(out_h, "\\%c", *str);
|
---|
429 | str++;
|
---|
430 | }
|
---|
431 | } while (*str);
|
---|
432 | fputs("\"\n", out);
|
---|
433 | if (out_h)
|
---|
434 | fputs("\"\n", out_h);
|
---|
435 | break;
|
---|
436 | case S_HEX:
|
---|
437 | str = sym_get_string_value(sym);
|
---|
438 | if (str[0] != '0' || (str[1] != 'x' && str[1] != 'X')) {
|
---|
439 | fprintf(out, "%s=%s\n", sym->name, *str ? str : "0");
|
---|
440 | if (out_h)
|
---|
441 | fprintf(out_h, "#define %s 0x%s\n", sym->name, str);
|
---|
442 | break;
|
---|
443 | }
|
---|
444 | case S_INT:
|
---|
445 | str = sym_get_string_value(sym);
|
---|
446 | fprintf(out, "%s=%s\n", sym->name, *str ? str : "0");
|
---|
447 | if (out_h)
|
---|
448 | fprintf(out_h, "#define %s %s\n", sym->name, str);
|
---|
449 | break;
|
---|
450 | }
|
---|
451 | /* busybox`s code */
|
---|
452 | if (out_h) {
|
---|
453 | fprintf(out_h, "#define ENABLE_%s %d\n", opt_name, use_flg);
|
---|
454 | fprintf(out_h, "#define USE_%s(...)%s\n", opt_name,
|
---|
455 | (use_flg ? " __VA_ARGS__" : ""));
|
---|
456 | fprintf(out_h, "#define SKIP_%s(...)%s\n\n", opt_name,
|
---|
457 | (use_flg ? "" : " __VA_ARGS__"));
|
---|
458 | }
|
---|
459 | /* end busybox`s code */
|
---|
460 | }
|
---|
461 | next:
|
---|
462 | menu = next_menu(menu);
|
---|
463 | }
|
---|
464 | fclose(out);
|
---|
465 | if (out_h) {
|
---|
466 | fprintf(out_h, "#endif /* BB_CONFIG_H */\n"); /* busybox`s code */
|
---|
467 | fclose(out_h);
|
---|
468 | rename(".tmpconfig.h", "include/bb_config.h"); /* busybox`s config name */
|
---|
469 | file_write_dep(NULL);
|
---|
470 | }
|
---|
471 | if (!name || basename != conf_def_filename) {
|
---|
472 | if (!name)
|
---|
473 | name = conf_def_filename;
|
---|
474 | sprintf(tmpname, "%s.old", name);
|
---|
475 | rename(name, tmpname);
|
---|
476 | }
|
---|
477 | sprintf(tmpname, "%s%s", dirname, basename);
|
---|
478 | if (rename(newname, tmpname))
|
---|
479 | return 1;
|
---|
480 |
|
---|
481 | sym_change_count = 0;
|
---|
482 |
|
---|
483 | return 0;
|
---|
484 | }
|
---|