2 * Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
3 * Released under the terms of the GNU GPL v2.0.
14 #define LKC_DIRECT_LINK
17 #define LOCAL_BUILD_SETTINGS "/.openwrt/defconfig"
19 static void conf_warning(const char *fmt, ...)
20 __attribute__ ((format (printf, 1, 2)));
22 static const char *conf_filename;
23 static int conf_lineno, conf_warnings, conf_unsaved;
25 const char conf_def_filename[] = ".config";
27 const char conf_defname[] = "scripts/config/defconfig";
29 const char *conf_confnames[] = {
35 static void conf_warning(const char *fmt, ...)
39 fprintf(stderr, "%s:%d:warning: ", conf_filename, conf_lineno);
40 vfprintf(stderr, fmt, ap);
41 fprintf(stderr, "\n");
46 static char *conf_expand_value(const char *in)
50 static char res_value[SYMBOL_MAXLENGTH];
51 char *dst, name[SYMBOL_MAXLENGTH];
55 while ((src = strchr(in, '$'))) {
56 strncat(res_value, in, src - in);
59 while (isalnum(*src) || *src == '_')
62 sym = sym_lookup(name, 0);
64 strcat(res_value, sym_get_string_value(sym));
67 strcat(res_value, in);
72 char *conf_get_default_confname(void)
75 static char fullname[PATH_MAX+1];
78 name = conf_expand_value(conf_defname);
79 env = getenv(SRCTREE);
81 sprintf(fullname, "%s/%s", env, name);
82 if (!stat(fullname, &buf))
93 for_all_symbols(i, sym) {
94 sym->flags |= SYMBOL_NEW | SYMBOL_CHANGED;
95 if (sym_is_choice(sym))
96 sym->flags &= ~SYMBOL_NEW;
97 sym->flags &= ~SYMBOL_VALID;
105 sym->user.val = NULL;
109 conf_read_simple(NULL, 0);
112 int conf_read_file(FILE *in, struct symbol *sym){
116 while (fgets(line, sizeof(line), in)) {
121 if (memcmp(line + 2, "CONFIG_", 7))
123 p = strchr(line + 9, ' ');
127 if (strncmp(p, "is not set", 10))
129 sym = sym_find(line + 9);
131 //conf_warning("trying to assign nonexistent symbol %s", line + 9);
133 } /*else if (!(sym->flags & SYMBOL_NEW)) {
134 //conf_warning("trying to reassign symbol %s", sym->name);
141 sym->flags &= ~SYMBOL_NEW;
148 if (memcmp(line, "CONFIG_", 7)) {
149 conf_warning("unexpected data");
152 p = strchr(line + 7, '=');
156 p2 = strchr(p, '\n');
159 sym = sym_find(line + 7);
161 //conf_warning("trying to assign nonexistent symbol %s", line + 7);
163 } /*else if (!(sym->flags & SYMBOL_NEW)) {
164 conf_warning("trying to reassign symbol %s", sym->name);
171 sym->flags &= ~SYMBOL_NEW;
177 sym->flags &= ~SYMBOL_NEW;
182 sym->flags &= ~SYMBOL_NEW;
185 conf_warning("symbol value '%s' invalid for %s", p, sym->name);
190 for (p2 = p; (p2 = strpbrk(p2, "\"\\")); p2++) {
195 memmove(p2, p2 + 1, strlen(p2));
198 conf_warning("invalid string found");
203 if (sym_string_valid(sym, p)) {
204 sym->user.val = strdup(p);
205 sym->flags &= ~SYMBOL_NEW;
207 conf_warning("symbol value '%s' invalid for %s", p, sym->name);
218 conf_warning("unexpected data");
221 if (sym && sym_is_choice_value(sym)) {
222 struct symbol *cs = prop_get_symbol(sym_get_choice_prop(sym));
223 switch (sym->user.tri) {
227 if (cs->user.tri == yes) {
228 conf_warning("%s creates inconsistent choice state", sym->name);
229 cs->flags |= SYMBOL_NEW;
236 cs->user.tri = E_OR(cs->user.tri, sym->user.tri);
244 int conf_read_simple(const char *name, int load_config)
247 FILE *defaults = NULL;
250 char *home_dir = getenv("HOME");
251 char *default_config_path = NULL;
254 default_config_path = malloc(strlen(home_dir) + sizeof(LOCAL_BUILD_SETTINGS) + 1);
255 sprintf(default_config_path, "%s%s", home_dir, LOCAL_BUILD_SETTINGS);
256 defaults = zconf_fopen(default_config_path);
258 printf("# using buildsystem predefines from %s\n", default_config_path);
259 free(default_config_path);
264 in = zconf_fopen(name);
266 const char **names = conf_confnames;
267 while ((name = *names++)) {
268 name = conf_expand_value(name);
269 in = zconf_fopen(name);
272 "# using defaults found in %s\n"
280 if (!in && !defaults)
283 conf_filename = name;
288 for_all_symbols(i, sym) {
289 sym->flags |= SYMBOL_NEW | SYMBOL_CHANGED;
290 if (sym_is_choice(sym))
291 sym->flags &= ~SYMBOL_NEW;
292 sym->flags &= ~SYMBOL_VALID;
300 sym->user.val = NULL;
306 conf_read_file(defaults, sym);
309 conf_read_file(in, sym);
312 sym_calc_value(modules_sym);
317 int conf_read(const char *name)
320 struct property *prop;
324 if (conf_read_simple(name, 1))
327 for_all_symbols(i, sym) {
329 if (sym_is_choice(sym) || (sym->flags & SYMBOL_AUTO))
331 if (sym_has_value(sym) && (sym->flags & SYMBOL_WRITE)) {
332 /* check that calculated value agrees with saved value */
336 if (sym->user.tri != sym_get_tristate_value(sym))
338 if (!sym_is_choice(sym))
341 if (!strcmp(sym->curr.val, sym->user.val))
345 } else if (!sym_has_value(sym) && !(sym->flags & SYMBOL_WRITE))
346 /* no previous value and not saved */
349 /* maybe print value in verbose mode... */
351 if (sym_has_value(sym) && !sym_is_choice_value(sym)) {
352 if (sym->visible == no)
353 sym->flags |= SYMBOL_NEW;
358 if (!sym_string_within_range(sym, sym->user.val)) {
359 sym->flags |= SYMBOL_NEW;
360 sym->flags &= ~SYMBOL_VALID;
366 if (!sym_is_choice(sym))
368 prop = sym_get_choice_prop(sym);
369 for (e = prop->expr; e; e = e->left.expr)
370 if (e->right.sym->visible != no)
371 sym->flags |= e->right.sym->flags & SYMBOL_NEW;
374 sym_change_count = conf_warnings && conf_unsaved;
379 int conf_write(const char *name)
384 const char *basename;
385 char dirname[128], tmpname[128], newname[128];
389 int use_timestamp = 1;
393 if (name && name[0]) {
397 if (!stat(name, &st) && S_ISDIR(st.st_mode)) {
398 strcpy(dirname, name);
399 strcat(dirname, "/");
400 basename = conf_def_filename;
401 } else if ((slash = strrchr(name, '/'))) {
402 int size = slash - name + 1;
403 memcpy(dirname, name, size);
406 basename = slash + 1;
408 basename = conf_def_filename;
412 basename = conf_def_filename;
414 sprintf(newname, "%s.tmpconfig.%d", dirname, (int)getpid());
415 out = fopen(newname, "w");
418 sym = sym_lookup("OPENWRTVERSION", 0);
421 env = getenv("KCONFIG_NOTIMESTAMP");
426 "# Automatically generated make config: don't edit\n"
427 "# OpenWrt version: %s\n"
430 sym_get_string_value(sym),
431 use_timestamp ? "# " : "",
432 use_timestamp ? ctime(&now) : "");
434 if (!sym_change_count)
435 sym_clear_all_valid();
437 menu = rootmenu.list;
441 if (!menu_is_visible(menu))
443 str = menu_get_prompt(menu);
448 } else if (!(sym->flags & SYMBOL_CHOICE)) {
450 if (!(sym->flags & SYMBOL_WRITE))
452 sym->flags &= ~SYMBOL_WRITE;
454 if (type == S_TRISTATE) {
455 sym_calc_value(modules_sym);
456 /* tristate always enabled */
458 if (modules_sym->curr.tri == no)
465 switch (sym_get_tristate_value(sym)) {
467 fprintf(out, "# CONFIG_%s is not set\n", sym->name);
470 fprintf(out, "CONFIG_%s=m\n", sym->name);
473 fprintf(out, "CONFIG_%s=y\n", sym->name);
479 str = sym_get_string_value(sym);
480 fprintf(out, "CONFIG_%s=\"", sym->name);
482 l = strcspn(str, "\"\\");
484 fwrite(str, l, 1, out);
487 while (*str == '\\' || *str == '"') {
488 fprintf(out, "\\%c", *str);
495 str = sym_get_string_value(sym);
496 if (str[0] != '0' || (str[1] != 'x' && str[1] != 'X')) {
497 fprintf(out, "CONFIG_%s=%s\n", sym->name, str);
501 str = sym_get_string_value(sym);
502 fprintf(out, "CONFIG_%s=%s\n", sym->name, str);
514 else while ((menu = menu->parent)) {
522 if (!name || basename != conf_def_filename) {
524 name = conf_def_filename;
525 sprintf(tmpname, "%s.old", name);
526 rename(name, tmpname);
528 sprintf(tmpname, "%s%s", dirname, basename);
529 if (rename(newname, tmpname))
532 sym_change_count = 0;