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authorGravatar Eric Andersen <andersen@codepoet.org>2004-10-09 01:06:03 +0000
committerGravatar Eric Andersen <andersen@codepoet.org>2004-10-09 01:06:03 +0000
commit2d523c23175b8e8772c2e223d92513f836cde8a6 (patch)
tree4482f6ad3b4e5a3259da65110e95cf853ac5d419 /package/config/confdata.c
parent3c09cf4b5e7cdc72e3a9945389766e687c476b37 (diff)
downloadbuildroot-2d523c23175b8e8772c2e223d92513f836cde8a6.tar.gz
buildroot-2d523c23175b8e8772c2e223d92513f836cde8a6.tar.bz2
Major buildroot facelift, step one.
-Erik
Diffstat (limited to 'package/config/confdata.c')
-rw-r--r--package/config/confdata.c447
1 files changed, 447 insertions, 0 deletions
diff --git a/package/config/confdata.c b/package/config/confdata.c
new file mode 100644
index 0000000000..fd3a345e26
--- /dev/null
+++ b/package/config/confdata.c
@@ -0,0 +1,447 @@
+/*
+ * Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
+ * Released under the terms of the GNU GPL v2.0.
+ */
+
+#include <sys/stat.h>
+#include <ctype.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#define LKC_DIRECT_LINK
+#include "lkc.h"
+
+const char conf_def_filename[] = ".config";
+
+const char conf_defname[] = "sysdeps/linux/defconfig";
+
+const char *conf_confnames[] = {
+ ".config",
+ conf_defname,
+ NULL,
+};
+
+static char *conf_expand_value(const char *in)
+{
+ struct symbol *sym;
+ const char *src;
+ static char res_value[SYMBOL_MAXLENGTH];
+ char *dst, name[SYMBOL_MAXLENGTH];
+
+ res_value[0] = 0;
+ dst = name;
+ while ((src = strchr(in, '$'))) {
+ strncat(res_value, in, src - in);
+ src++;
+ dst = name;
+ while (isalnum(*src) || *src == '_')
+ *dst++ = *src++;
+ *dst = 0;
+ sym = sym_lookup(name, 0);
+ sym_calc_value(sym);
+ strcat(res_value, sym_get_string_value(sym));
+ in = src;
+ }
+ strcat(res_value, in);
+
+ return res_value;
+}
+
+char *conf_get_default_confname(void)
+{
+ struct stat buf;
+ static char fullname[PATH_MAX+1];
+ char *env, *name;
+
+ name = conf_expand_value(conf_defname);
+ env = getenv(SRCTREE);
+ if (env) {
+ sprintf(fullname, "%s/%s", env, name);
+ if (!stat(fullname, &buf))
+ return fullname;
+ }
+ return name;
+}
+
+int conf_read(const char *name)
+{
+ FILE *in = NULL;
+ char line[1024];
+ char *p, *p2;
+ int lineno = 0;
+ struct symbol *sym;
+ struct property *prop;
+ struct expr *e;
+ int i;
+
+ if (name) {
+ in = zconf_fopen(name);
+ } else {
+ const char **names = conf_confnames;
+ while ((name = *names++)) {
+ name = conf_expand_value(name);
+ in = zconf_fopen(name);
+ if (in) {
+ printf("#\n"
+ "# using defaults found in %s\n"
+ "#\n", name);
+ break;
+ }
+ }
+ }
+
+ if (!in)
+ return 1;
+
+ for_all_symbols(i, sym) {
+ sym->flags |= SYMBOL_NEW | SYMBOL_CHANGED;
+ sym->flags &= ~SYMBOL_VALID;
+ switch (sym->type) {
+ case S_INT:
+ case S_HEX:
+ case S_STRING:
+ if (sym->user.val)
+ free(sym->user.val);
+ default:
+ sym->user.val = NULL;
+ sym->user.tri = no;
+ }
+ }
+
+ while (fgets(line, sizeof(line), in)) {
+ lineno++;
+ sym = NULL;
+ switch (line[0]) {
+ case '#':
+ if (line[1]!=' ')
+ continue;
+ p = strchr(line + 2, ' ');
+ if (!p)
+ continue;
+ *p++ = 0;
+ if (strncmp(p, "is not set", 10))
+ continue;
+ sym = sym_find(line + 2);
+ if (!sym) {
+ fprintf(stderr, "%s:%d: trying to assign nonexistent symbol %s\n", name, lineno, line + 2);
+ break;
+ }
+ switch (sym->type) {
+ case S_BOOLEAN:
+ case S_TRISTATE:
+ sym->user.tri = no;
+ sym->flags &= ~SYMBOL_NEW;
+ break;
+ default:
+ ;
+ }
+ break;
+
+ case 'A' ... 'Z':
+ p = strchr(line, '=');
+ if (!p)
+ continue;
+ *p++ = 0;
+ p2 = strchr(p, '\n');
+ if (p2)
+ *p2 = 0;
+ sym = sym_find(line);
+ if (!sym) {
+ fprintf(stderr, "%s:%d: trying to assign nonexistent symbol %s\n", name, lineno, line);
+ break;
+ }
+ switch (sym->type) {
+ case S_TRISTATE:
+ if (p[0] == 'm') {
+ sym->user.tri = mod;
+ sym->flags &= ~SYMBOL_NEW;
+ break;
+ }
+ case S_BOOLEAN:
+ if (p[0] == 'y') {
+ sym->user.tri = yes;
+ sym->flags &= ~SYMBOL_NEW;
+ break;
+ }
+ if (p[0] == 'n') {
+ sym->user.tri = no;
+ sym->flags &= ~SYMBOL_NEW;
+ break;
+ }
+ break;
+ case S_STRING:
+ if (*p++ != '"')
+ break;
+ for (p2 = p; (p2 = strpbrk(p2, "\"\\")); p2++) {
+ if (*p2 == '"') {
+ *p2 = 0;
+ break;
+ }
+ memmove(p2, p2 + 1, strlen(p2));
+ }
+ if (!p2) {
+ fprintf(stderr, "%s:%d: invalid string found\n", name, lineno);
+ exit(1);
+ }
+ case S_INT:
+ case S_HEX:
+ if (sym_string_valid(sym, p)) {
+ sym->user.val = strdup(p);
+ sym->flags &= ~SYMBOL_NEW;
+ } else {
+ fprintf(stderr, "%s:%d: symbol value '%s' invalid for %s\n", name, lineno, p, sym->name);
+ exit(1);
+ }
+ break;
+ default:
+ ;
+ }
+ break;
+ case '\n':
+ break;
+ default:
+ continue;
+ }
+ if (sym && sym_is_choice_value(sym)) {
+ struct symbol *cs = prop_get_symbol(sym_get_choice_prop(sym));
+ switch (sym->user.tri) {
+ case no:
+ break;
+ case mod:
+ if (cs->user.tri == yes)
+ /* warn? */;
+ break;
+ case yes:
+ if (cs->user.tri != no)
+ /* warn? */;
+ cs->user.val = sym;
+ break;
+ }
+ cs->user.tri = E_OR(cs->user.tri, sym->user.tri);
+ cs->flags &= ~SYMBOL_NEW;
+ }
+ }
+ fclose(in);
+
+ if (modules_sym)
+ sym_calc_value(modules_sym);
+ for_all_symbols(i, sym) {
+ sym_calc_value(sym);
+ if (sym_has_value(sym) && !sym_is_choice_value(sym)) {
+ if (sym->visible == no)
+ sym->flags |= SYMBOL_NEW;
+ switch (sym->type) {
+ case S_STRING:
+ case S_INT:
+ case S_HEX:
+ if (!sym_string_within_range(sym, sym->user.val))
+ sym->flags |= SYMBOL_NEW;
+ default:
+ break;
+ }
+ }
+ if (!sym_is_choice(sym))
+ continue;
+ prop = sym_get_choice_prop(sym);
+ for (e = prop->expr; e; e = e->left.expr)
+ if (e->right.sym->visible != no)
+ sym->flags |= e->right.sym->flags & SYMBOL_NEW;
+ }
+
+ sym_change_count = 1;
+
+ return 0;
+}
+
+int conf_write(const char *name)
+{
+ FILE *out, *out_h;
+ struct symbol *sym;
+ struct menu *menu;
+ const char *basename;
+ char dirname[128], tmpname[128], newname[128];
+ int type, l;
+ const char *str;
+
+ dirname[0] = 0;
+ if (name && name[0]) {
+ struct stat st;
+ char *slash;
+
+ if (!stat(name, &st) && S_ISDIR(st.st_mode)) {
+ strcpy(dirname, name);
+ strcat(dirname, "/");
+ basename = conf_def_filename;
+ } else if ((slash = strrchr(name, '/'))) {
+ int size = slash - name + 1;
+ memcpy(dirname, name, size);
+ dirname[size] = 0;
+ if (slash[1])
+ basename = slash + 1;
+ else
+ basename = conf_def_filename;
+ } else
+ basename = name;
+ } else
+ basename = conf_def_filename;
+
+ sprintf(newname, "%s.tmpconfig.%d", dirname, getpid());
+ out = fopen(newname, "w");
+ if (!out)
+ return 1;
+ out_h = NULL;
+ if (!name) {
+ out_h = fopen(".tmpconfig.h", "w");
+ if (!out_h)
+ return 1;
+ }
+ fprintf(out, "#\n"
+ "# Automatically generated make config: don't edit\n"
+ "#\n");
+ if (out_h) {
+ fprintf(out_h, "/*\n"
+ " * Automatically generated header file: don't edit\n"
+ " */\n\n"
+ "#define AUTOCONF_INCLUDED\n\n"
+ "/* Version Number */\n"
+ "#define BB_VER \"%s\"\n"
+ "#define BB_BT \"%s\"\n",
+ getenv("VERSION"),
+ getenv("BUILDTIME"));
+ if (getenv("EXTRA_VERSION"))
+ fprintf(out_h, "#define BB_EXTRA_VERSION \"%s\"\n",
+ getenv("EXTRA_VERSION"));
+ fprintf(out_h, "\n");
+ }
+
+ if (!sym_change_count)
+ sym_clear_all_valid();
+
+ menu = rootmenu.list;
+ while (menu) {
+ sym = menu->sym;
+ if (!sym) {
+ if (!menu_is_visible(menu))
+ goto next;
+ str = menu_get_prompt(menu);
+ fprintf(out, "\n"
+ "#\n"
+ "# %s\n"
+ "#\n", str);
+ if (out_h)
+ fprintf(out_h, "\n"
+ "/*\n"
+ " * %s\n"
+ " */\n", str);
+ } else if (!(sym->flags & SYMBOL_CHOICE)) {
+ sym_calc_value(sym);
+ if (!(sym->flags & SYMBOL_WRITE))
+ goto next;
+ sym->flags &= ~SYMBOL_WRITE;
+ type = sym->type;
+ if (type == S_TRISTATE) {
+ sym_calc_value(modules_sym);
+ if (modules_sym->curr.tri == no)
+ type = S_BOOLEAN;
+ }
+ switch (type) {
+ case S_BOOLEAN:
+ case S_TRISTATE:
+ switch (sym_get_tristate_value(sym)) {
+ case no:
+ fprintf(out, "# %s is not set\n", sym->name);
+ if (out_h)
+ fprintf(out_h, "#undef %s\n", sym->name);
+ break;
+ case mod:
+#if 0
+ fprintf(out, "%s=m\n", sym->name);
+ if (out_h)
+ fprintf(out_h, "#define %s_MODULE 1\n", sym->name);
+#endif
+ break;
+ case yes:
+ fprintf(out, "%s=y\n", sym->name);
+ if (out_h)
+ fprintf(out_h, "#define %s 1\n", sym->name);
+ break;
+ }
+ break;
+ case S_STRING:
+ // fix me
+ str = sym_get_string_value(sym);
+ fprintf(out, "%s=\"", sym->name);
+ if (out_h)
+ fprintf(out_h, "#define %s \"", sym->name);
+ do {
+ l = strcspn(str, "\"\\");
+ if (l) {
+ fwrite(str, l, 1, out);
+ if (out_h)
+ fwrite(str, l, 1, out_h);
+ }
+ str += l;
+ while (*str == '\\' || *str == '"') {
+ fprintf(out, "\\%c", *str);
+ if (out_h)
+ fprintf(out_h, "\\%c", *str);
+ str++;
+ }
+ } while (*str);
+ fputs("\"\n", out);
+ if (out_h)
+ fputs("\"\n", out_h);
+ break;
+ case S_HEX:
+ str = sym_get_string_value(sym);
+ if (str[0] != '0' || (str[1] != 'x' && str[1] != 'X')) {
+ fprintf(out, "%s=%s\n", sym->name, str);
+ if (out_h)
+ fprintf(out_h, "#define %s 0x%s\n", sym->name, str);
+ break;
+ }
+ case S_INT:
+ str = sym_get_string_value(sym);
+ fprintf(out, "%s=%s\n", sym->name, str);
+ if (out_h)
+ fprintf(out_h, "#define %s %s\n", sym->name, str);
+ break;
+ }
+ }
+
+ next:
+ if (menu->list) {
+ menu = menu->list;
+ continue;
+ }
+ if (menu->next)
+ menu = menu->next;
+ else while ((menu = menu->parent)) {
+ if (menu->next) {
+ menu = menu->next;
+ break;
+ }
+ }
+ }
+ fclose(out);
+ if (out_h) {
+ fclose(out_h);
+ rename(".tmpconfig.h", "include/config.h");
+ file_write_dep(NULL);
+ }
+ if (!name || basename != conf_def_filename) {
+ if (!name)
+ name = conf_def_filename;
+ sprintf(tmpname, "%s.old", name);
+ rename(name, tmpname);
+ }
+ sprintf(tmpname, "%s%s", dirname, basename);
+ if (rename(newname, tmpname))
+ return 1;
+
+ sym_change_count = 0;
+
+ return 0;
+}