| /* |
| * 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[4096+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); |
| |
| 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]) { |
| char *slash = strrchr(name, '/'); |
| if (slash) { |
| 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; |
| } |