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 static void conf_warning(const char *fmt, ...)
18 __attribute__ ((format (printf, 1, 2)));
20 static const char *conf_filename;
21 static int conf_lineno, conf_warnings, conf_unsaved;
23 const char conf_def_filename[] = ".config";
25 const char conf_defname[] = "scripts/config/defconfig";
27 const char *conf_confnames[] = {
33 static void conf_warning(const char *fmt, ...)
37 fprintf(stderr, "%s:%d:warning: ", conf_filename, conf_lineno);
38 vfprintf(stderr, fmt, ap);
39 fprintf(stderr, "\n");
44 static char *conf_expand_value(const char *in)
48 static char res_value[SYMBOL_MAXLENGTH];
49 char *dst, name[SYMBOL_MAXLENGTH];
53 while ((src = strchr(in, '$'))) {
54 strncat(res_value, in, src - in);
57 while (isalnum(*src) || *src == '_')
60 sym = sym_lookup(name, 0);
62 strcat(res_value, sym_get_string_value(sym));
65 strcat(res_value, in);
70 char *conf_get_default_confname(void)
73 static char fullname[PATH_MAX+1];
76 name = conf_expand_value(conf_defname);
77 env = getenv(SRCTREE);
79 sprintf(fullname, "%s/%s", env, name);
80 if (!stat(fullname, &buf))
91 for_all_symbols(i, sym) {
92 sym->flags |= SYMBOL_NEW | SYMBOL_CHANGED;
93 if (sym_is_choice(sym))
94 sym->flags &= ~SYMBOL_NEW;
95 sym->flags &= ~SYMBOL_VALID;
103 sym->user.val = NULL;
109 int conf_read_simple(const char *name)
118 in = zconf_fopen(name);
120 const char **names = conf_confnames;
121 while ((name = *names++)) {
122 name = conf_expand_value(name);
123 in = zconf_fopen(name);
126 "# using defaults found in %s\n"
135 conf_filename = name;
140 for_all_symbols(i, sym) {
141 sym->flags |= SYMBOL_NEW | SYMBOL_CHANGED;
142 if (sym_is_choice(sym))
143 sym->flags &= ~SYMBOL_NEW;
144 sym->flags &= ~SYMBOL_VALID;
152 sym->user.val = NULL;
157 while (fgets(line, sizeof(line), in)) {
162 if (memcmp(line + 2, "CONFIG_", 7))
164 p = strchr(line + 9, ' ');
168 if (strncmp(p, "is not set", 10))
170 sym = sym_find(line + 9);
172 conf_warning("trying to assign nonexistent symbol %s", line + 9);
174 } else if (!(sym->flags & SYMBOL_NEW)) {
175 conf_warning("trying to reassign symbol %s", sym->name);
182 sym->flags &= ~SYMBOL_NEW;
189 if (memcmp(line, "CONFIG_", 7)) {
190 conf_warning("unexpected data");
193 p = strchr(line + 7, '=');
197 p2 = strchr(p, '\n');
200 sym = sym_find(line + 7);
202 conf_warning("trying to assign nonexistent symbol %s", line + 7);
204 } else if (!(sym->flags & SYMBOL_NEW)) {
205 conf_warning("trying to reassign symbol %s", sym->name);
212 sym->flags &= ~SYMBOL_NEW;
218 sym->flags &= ~SYMBOL_NEW;
223 sym->flags &= ~SYMBOL_NEW;
226 conf_warning("symbol value '%s' invalid for %s", p, sym->name);
231 for (p2 = p; (p2 = strpbrk(p2, "\"\\")); p2++) {
236 memmove(p2, p2 + 1, strlen(p2));
239 conf_warning("invalid string found");
244 if (sym_string_valid(sym, p)) {
245 sym->user.val = strdup(p);
246 sym->flags &= ~SYMBOL_NEW;
248 conf_warning("symbol value '%s' invalid for %s", p, sym->name);
259 conf_warning("unexpected data");
262 if (sym && sym_is_choice_value(sym)) {
263 struct symbol *cs = prop_get_symbol(sym_get_choice_prop(sym));
264 switch (sym->user.tri) {
268 if (cs->user.tri == yes) {
269 conf_warning("%s creates inconsistent choice state", sym->name);
270 cs->flags |= SYMBOL_NEW;
274 if (cs->user.tri != no) {
275 conf_warning("%s creates inconsistent choice state", sym->name);
276 cs->flags |= SYMBOL_NEW;
281 cs->user.tri = E_OR(cs->user.tri, sym->user.tri);
287 sym_calc_value(modules_sym);
291 int conf_read(const char *name)
294 struct property *prop;
298 if (conf_read_simple(name))
301 for_all_symbols(i, sym) {
303 if (sym_is_choice(sym) || (sym->flags & SYMBOL_AUTO))
305 if (sym_has_value(sym) && (sym->flags & SYMBOL_WRITE)) {
306 /* check that calculated value agrees with saved value */
310 if (sym->user.tri != sym_get_tristate_value(sym))
312 if (!sym_is_choice(sym))
315 if (!strcmp(sym->curr.val, sym->user.val))
319 } else if (!sym_has_value(sym) && !(sym->flags & SYMBOL_WRITE))
320 /* no previous value and not saved */
323 /* maybe print value in verbose mode... */
325 if (sym_has_value(sym) && !sym_is_choice_value(sym)) {
326 if (sym->visible == no)
327 sym->flags |= SYMBOL_NEW;
332 if (!sym_string_within_range(sym, sym->user.val)) {
333 sym->flags |= SYMBOL_NEW;
334 sym->flags &= ~SYMBOL_VALID;
340 if (!sym_is_choice(sym))
342 prop = sym_get_choice_prop(sym);
343 for (e = prop->expr; e; e = e->left.expr)
344 if (e->right.sym->visible != no)
345 sym->flags |= e->right.sym->flags & SYMBOL_NEW;
348 sym_change_count = conf_warnings && conf_unsaved;
353 int conf_write(const char *name)
358 const char *basename;
359 char dirname[128], tmpname[128], newname[128];
363 int use_timestamp = 1;
367 if (name && name[0]) {
371 if (!stat(name, &st) && S_ISDIR(st.st_mode)) {
372 strcpy(dirname, name);
373 strcat(dirname, "/");
374 basename = conf_def_filename;
375 } else if ((slash = strrchr(name, '/'))) {
376 int size = slash - name + 1;
377 memcpy(dirname, name, size);
380 basename = slash + 1;
382 basename = conf_def_filename;
386 basename = conf_def_filename;
388 sprintf(newname, "%s.tmpconfig.%d", dirname, (int)getpid());
389 out = fopen(newname, "w");
392 sym = sym_lookup("OPENWRTVERSION", 0);
395 env = getenv("KCONFIG_NOTIMESTAMP");
400 "# Automatically generated make config: don't edit\n"
401 "# OpenWrt version: %s\n"
404 sym_get_string_value(sym),
405 use_timestamp ? "# " : "",
406 use_timestamp ? ctime(&now) : "");
408 if (!sym_change_count)
409 sym_clear_all_valid();
411 menu = rootmenu.list;
415 if (!menu_is_visible(menu))
417 str = menu_get_prompt(menu);
422 } else if (!(sym->flags & SYMBOL_CHOICE)) {
424 if (!(sym->flags & SYMBOL_WRITE))
426 sym->flags &= ~SYMBOL_WRITE;
428 if (type == S_TRISTATE) {
429 sym_calc_value(modules_sym);
430 /* tristate always enabled */
432 if (modules_sym->curr.tri == no)
439 switch (sym_get_tristate_value(sym)) {
441 fprintf(out, "# CONFIG_%s is not set\n", sym->name);
444 fprintf(out, "CONFIG_%s=m\n", sym->name);
447 fprintf(out, "CONFIG_%s=y\n", sym->name);
453 str = sym_get_string_value(sym);
454 fprintf(out, "CONFIG_%s=\"", sym->name);
456 l = strcspn(str, "\"\\");
458 fwrite(str, l, 1, out);
461 while (*str == '\\' || *str == '"') {
462 fprintf(out, "\\%c", *str);
469 str = sym_get_string_value(sym);
470 if (str[0] != '0' || (str[1] != 'x' && str[1] != 'X')) {
471 fprintf(out, "CONFIG_%s=%s\n", sym->name, str);
475 str = sym_get_string_value(sym);
476 fprintf(out, "CONFIG_%s=%s\n", sym->name, str);
488 else while ((menu = menu->parent)) {
496 if (!name || basename != conf_def_filename) {
498 name = conf_def_filename;
499 sprintf(tmpname, "%s.old", name);
500 rename(name, tmpname);
502 sprintf(tmpname, "%s%s", dirname, basename);
503 if (rename(newname, tmpname))
506 sym_change_count = 0;