1 // SPDX-License-Identifier: GPL-2.0
3  * Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
99 	tmp[sizeof(tmp) - 1] = 0;  in make_parent_dir()
117 			return -1;  in make_parent_dir()
137 		return -1;  in conf_touch_dep()
142 	if (fd == -1)  in conf_touch_dep()
143 		return -1;  in conf_touch_dep()
237 	switch (sym->type) {  in conf_set_sym_val()
240 			sym->def[def].tri = mod;  in conf_set_sym_val()
241 			sym->flags |= def_flags;  in conf_set_sym_val()
247 			sym->def[def].tri = yes;  in conf_set_sym_val()
248 			sym->flags |= def_flags;  in conf_set_sym_val()
252 			sym->def[def].tri = no;  in conf_set_sym_val()
253 			sym->flags |= def_flags;  in conf_set_sym_val()
258 				     p, sym->name);  in conf_set_sym_val()
281 			sym->def[def].val = xstrdup(p);  in conf_set_sym_val()
282 			sym->flags |= def_flags;  in conf_set_sym_val()
286 					     p, sym->name);  in conf_set_sym_val()
302 		new_size += LINE_GROWTH - 1;  in add_byte()
332 				return -1;  in compat_getline()
342 	line[slen-1] = '\0';  in compat_getline()
344 	return -1;  in compat_getline()
354 	if (len > 0 && (*lineptr)[len - 1] == '\n') {  in getline_stripped()
355 		len--;  in getline_stripped()
358 		if (len > 0 && (*lineptr)[len - 1] == '\r') {  in getline_stripped()
359 			len--;  in getline_stripped()
433 		sym->flags |= SYMBOL_CHANGED;  in conf_read_simple()
434 		sym->flags &= ~(def_flags|SYMBOL_VALID);  in conf_read_simple()
436 			sym->flags |= def_flags;  in conf_read_simple()
437 		switch (sym->type) {  in conf_read_simple()
441 			free(sym->def[def].val);  in conf_read_simple()
444 			sym->def[def].val = NULL;  in conf_read_simple()
445 			sym->def[def].tri = no;  in conf_read_simple()
449 	while (getline_stripped(&line, &line_asize, in) != -1) {  in conf_read_simple()
505 		if (sym->flags & def_flags)  in conf_read_simple()
506 			conf_warning("override: reassigning to symbol %s", sym->name);  in conf_read_simple()
512 			struct symbol *cs = prop_get_symbol(sym_get_choice_prop(sym));  in conf_read_simple()  local
513 			switch (sym->def[def].tri) {  in conf_read_simple()
517 				if (cs->def[def].tri == yes) {  in conf_read_simple()
518 					conf_warning("%s creates inconsistent choice state", sym->name);  in conf_read_simple()
519 					cs->flags &= ~def_flags;  in conf_read_simple()
523 				if (cs->def[def].tri != no)  in conf_read_simple()
524 					conf_warning("override: %s changes choice state", sym->name);  in conf_read_simple()
525 				cs->def[def].val = sym;  in conf_read_simple()
528 			cs->def[def].tri = EXPR_OR(cs->def[def].tri, sym->def[def].tri);  in conf_read_simple()
554 		if (sym_is_choice(sym) || (sym->flags & SYMBOL_NO_WRITE))  in conf_read()
556 		if (sym_has_value(sym) && (sym->flags & SYMBOL_WRITE)) {  in conf_read()
558 			switch (sym->type) {  in conf_read()
561 				if (sym->def[S_DEF_USER].tri == sym_get_tristate_value(sym))  in conf_read()
565 				if (!strcmp(sym->curr.val, sym->def[S_DEF_USER].val))  in conf_read()
569 		} else if (!sym_has_value(sym) && !(sym->flags & SYMBOL_WRITE))  in conf_read()
583 			if (sym->visible == no && !conf_unsaved)  in conf_read()
584 				sym->flags &= ~SYMBOL_DEF_USER;  in conf_read()
585 			switch (sym->type) {  in conf_read()
589 				/* Reset a string value if it's out of range */  in conf_read()
590 				if (sym_string_within_range(sym, sym->def[S_DEF_USER].val))  in conf_read()
592 				sym->flags &= ~SYMBOL_VALID;  in conf_read()
625 static void conf_write_heading(FILE *fp, const struct comment_style *cs)  in conf_write_heading()  argument
627 	if (!cs)  in conf_write_heading()
630 	fprintf(fp, "%s\n", cs->prefix);  in conf_write_heading()
633 		cs->decoration);  in conf_write_heading()
635 	fprintf(fp, "%s %s\n", cs->decoration, rootmenu.prompt->text);  in conf_write_heading()
637 	fprintf(fp, "%s\n", cs->postfix);  in conf_write_heading()
644 	char *out;  in escape_string_value()  local
660 	out = xmalloc(len);  in escape_string_value()
661 	out[0] = '\0';  in escape_string_value()
663 	strcat(out, "\"");  in escape_string_value()
668 		strncat(out, p, len);  in escape_string_value()
674 		strcat(out, "\\");  in escape_string_value()
675 		strncat(out, p++, 1);  in escape_string_value()
678 	strcat(out, "\"");  in escape_string_value()
680 	return out;  in escape_string_value()
691 	if (sym->type == S_UNKNOWN)  in __print_symbol()
696 	if ((sym->type == S_BOOLEAN || sym->type == S_TRISTATE) &&  in __print_symbol()
699 			fprintf(fp, "# %s%s is not set\n", CONFIG_, sym->name);  in __print_symbol()
703 	if (sym->type == S_STRING && escape_string) {  in __print_symbol()
708 	fprintf(fp, "%s%s=%s\n", CONFIG_, sym->name, val);  in __print_symbol()
735 	if (sym->type == S_UNKNOWN)  in print_symbol_for_c()
740 	switch (sym->type) {  in print_symbol_for_c()
764 	fprintf(fp, "#define %s%s%s %s%s\n", CONFIG_, sym->name, sym_suffix,  in print_symbol_for_c()
778 	if (sym->type == S_UNKNOWN)  in print_symbol_for_rustccfg()
783 	switch (sym->type) {  in print_symbol_for_rustccfg()
795 		 * we provide an empty `--cfg CONFIG_X` here in both `y`  in print_symbol_for_rustccfg()
799 		 * a `--cfg CONFIG_X="y"` or `--cfg CONFIG_X="m"`, which can  in print_symbol_for_rustccfg()
802 		fprintf(fp, "--cfg=%s%s\n", CONFIG_, sym->name);  in print_symbol_for_rustccfg()
819 	/* All values get escaped: the `--cfg` option only takes strings */  in print_symbol_for_rustccfg()
823 	fprintf(fp, "--cfg=%s%s=%s\n", CONFIG_, sym->name, val);  in print_symbol_for_rustccfg()
830  * Write out a minimal config.
837 	FILE *out;  in conf_write_defconfig()  local
839 	out = fopen(filename, "w");  in conf_write_defconfig()
840 	if (!out)  in conf_write_defconfig()
850 		sym = menu->sym;  in conf_write_defconfig()
856 			if (!(sym->flags & SYMBOL_WRITE))  in conf_write_defconfig()
858 			sym->flags &= ~SYMBOL_WRITE;  in conf_write_defconfig()
859 			/* If we cannot change the symbol - skip */  in conf_write_defconfig()
862 			/* If symbol equals to default value - skip */  in conf_write_defconfig()
868 			 * default for a choice - skip.  in conf_write_defconfig()
874 				struct symbol *cs;  in conf_write_defconfig()  local
877 				cs = prop_get_symbol(sym_get_choice_prop(sym));  in conf_write_defconfig()
878 				ds = sym_choice_default(cs);  in conf_write_defconfig()
879 				if (!sym_is_optional(cs) && sym == ds) {  in conf_write_defconfig()
880 					if ((sym->type == S_BOOLEAN) &&  in conf_write_defconfig()
885 			print_symbol_for_dotconfig(out, sym);  in conf_write_defconfig()
888 		if (menu->list != NULL) {  in conf_write_defconfig()
889 			menu = menu->list;  in conf_write_defconfig()
891 		else if (menu->next != NULL) {  in conf_write_defconfig()
892 			menu = menu->next;  in conf_write_defconfig()
894 			while ((menu = menu->parent)) {  in conf_write_defconfig()
895 				if (menu->next != NULL) {  in conf_write_defconfig()
896 					menu = menu->next;  in conf_write_defconfig()
902 	fclose(out);  in conf_write_defconfig()
908 	FILE *out;  in conf_write()  local
922 		return -1;  in conf_write()
927 		return -1;  in conf_write()
931 		return -1;  in conf_write()
936 		out = fopen(name, "w");  in conf_write()
940 		out = fopen(tmpname, "w");  in conf_write()
942 	if (!out)  in conf_write()
945 	conf_write_heading(out, &comment_style_pound);  in conf_write()
952 		sym = menu->sym;  in conf_write()
957 			fprintf(out, "\n"  in conf_write()
962 		} else if (!(sym->flags & SYMBOL_CHOICE) &&  in conf_write()
963 			   !(sym->flags & SYMBOL_WRITTEN)) {  in conf_write()
965 			if (!(sym->flags & SYMBOL_WRITE))  in conf_write()
968 				fprintf(out, "\n");  in conf_write()
971 			sym->flags |= SYMBOL_WRITTEN;  in conf_write()
972 			print_symbol_for_dotconfig(out, sym);  in conf_write()
976 		if (menu->list) {  in conf_write()
977 			menu = menu->list;  in conf_write()
982 		if (!menu->sym && menu_is_visible(menu) && menu != &rootmenu &&  in conf_write()
983 		    menu->prompt->type == P_MENU) {  in conf_write()
984 			fprintf(out, "# end of %s\n", menu_get_prompt(menu));  in conf_write()
988 		if (menu->next) {  in conf_write()
989 			menu = menu->next;  in conf_write()
991 			menu = menu->parent;  in conf_write()
996 	fclose(out);  in conf_write()
999 		sym->flags &= ~SYMBOL_WRITTEN;  in conf_write()
1027 	FILE *out;  in conf_write_autoconf_cmd()  local
1032 		return -1;  in conf_write_autoconf_cmd()
1035 		return -1;  in conf_write_autoconf_cmd()
1039 		return -1;  in conf_write_autoconf_cmd()
1041 	out = fopen(tmp, "w");  in conf_write_autoconf_cmd()
1042 	if (!out) {  in conf_write_autoconf_cmd()
1044 		return -1;  in conf_write_autoconf_cmd()
1047 	fprintf(out, "deps_config := \\\n");  in conf_write_autoconf_cmd()
1048 	for (file = file_list; file; file = file->next)  in conf_write_autoconf_cmd()
1049 		fprintf(out, "\t%s \\\n", file->name);  in conf_write_autoconf_cmd()
1051 	fprintf(out, "\n%s: $(deps_config)\n\n", autoconf_name);  in conf_write_autoconf_cmd()
1053 	env_write_dep(out, autoconf_name);  in conf_write_autoconf_cmd()
1055 	fprintf(out, "\n$(deps_config): ;\n");  in conf_write_autoconf_cmd()
1057 	fflush(out);  in conf_write_autoconf_cmd()
1058 	ret = ferror(out); /* error check for all fprintf() calls */  in conf_write_autoconf_cmd()
1059 	fclose(out);  in conf_write_autoconf_cmd()
1061 		return -1;  in conf_write_autoconf_cmd()
1065 		return -1;  in conf_write_autoconf_cmd()
1079 	depfile_prefix_len = tmp ? tmp - name + 1 : 0;  in conf_touch_deps()
1081 		return -1;  in conf_touch_deps()
1091 		if ((sym->flags & SYMBOL_NO_WRITE) || !sym->name)  in conf_touch_deps()
1093 		if (sym->flags & SYMBOL_WRITE) {  in conf_touch_deps()
1094 			if (sym->flags & SYMBOL_DEF_AUTO) {  in conf_touch_deps()
1099 				switch (sym->type) {  in conf_touch_deps()
1103 					    sym->def[S_DEF_AUTO].tri)  in conf_touch_deps()
1110 						    sym->def[S_DEF_AUTO].val))  in conf_touch_deps()
1121 				switch (sym->type) {  in conf_touch_deps()
1131 		} else if (!(sym->flags & SYMBOL_DEF_AUTO))  in conf_touch_deps()
1140 		res = conf_touch_dep(sym->name);  in conf_touch_deps()
1158 		return -1;  in __conf_write_autoconf()
1162 		return -1;  in __conf_write_autoconf()
1167 		return -1;  in __conf_write_autoconf()
1173 		if ((sym->flags & SYMBOL_WRITE) && sym->name)  in __conf_write_autoconf()
1181 		return -1;  in __conf_write_autoconf()
1185 		return -1;  in __conf_write_autoconf()
1202 		return -1;  in conf_write_autoconf()
1268 	 * Set all non-assinged choice values to no  in set_all_choice_values()
1270 	expr_list_for_each_sym(prop->expr, e, sym) {  in set_all_choice_values()
1272 			sym->def[S_DEF_USER].tri = no;  in set_all_choice_values()
1274 	csym->flags |= SYMBOL_DEF_USER;  in set_all_choice_values()
1276 	csym->flags &= ~(SYMBOL_VALID | SYMBOL_NEED_SET_CHOICE_VALUES);  in set_all_choice_values()