view kconfig/lkc.h @ 1613:96aa7ec74936 draft

Fix yet another sed bug. The s/// command would copy the \ of substitutions before deciding what to do with them (generally overwriting the \ with the new data). When the substitution was A) at the very end of the new string, B) resolved to nothing, it could leave a trailing \ that didn't belong there and didn't get overwritten because the "copy trailing data" part that copies the original string's null terminator already happened before the \ overwrote it. The ghostwheel() function restarts regexes after embedded NUL bytes, but if the string it's passed is _longer_ than the length it's told then it gets confused (and it means we're off the end of our allocation so segfaults are likely). Fix: test for \ first and move the "copy byte" logic into an else case.
author Rob Landley <>
date Mon, 15 Dec 2014 03:34:55 -0600
parents db63b2829eda
line wrap: on
line source

 * Copyright (C) 2002 Roman Zippel <>
 * Released under the terms of the GNU GPL v2.0.

#ifndef LKC_H
#define LKC_H

// Make some warnings go away
#define YYENABLE_NLS 0

#include "expr.h"

# include <libintl.h>
# define gettext(Msgid) ((const char *) (Msgid))
# define textdomain(Domainname) ((const char *) (Domainname))
# define bindtextdomain(Domainname, Dirname) ((const char *) (Dirname))

#ifdef __cplusplus
extern "C" {

#define P(name,type,arg)	extern type name arg
#include "lkc_defs.h"
#define P(name,type,arg)	extern type (*name ## _p) arg
#include "lkc_proto.h"
#undef P

#define SRCTREE "srctree"

#define PACKAGE "linux"
#define LOCALEDIR "/usr/share/locale"

#define _(text) gettext(text)
#define N_(text) (text)

#define TF_COMMAND	0x0001
#define TF_PARAM	0x0002
#define TF_OPTION	0x0004

#define T_OPT_MODULES		1

struct kconf_id {
	int name;
	int token;
	unsigned int flags;
	enum symbol_type stype;

int zconfparse(void);
void zconfdump(FILE *out);

extern int zconfdebug;
void zconf_starthelp(void);
FILE *zconf_fopen(const char *name);
void zconf_initscan(const char *name);
void zconf_nextfile(const char *name);
int zconf_lineno(void);
char *zconf_curname(void);

/* confdata.c */
char *conf_get_default_confname(void);

/* kconfig_load.c */
void kconfig_load(void);

/* menu.c */
void menu_init(void);
struct menu *menu_add_menu(void);
void menu_end_menu(void);
void menu_add_entry(struct symbol *sym);
void menu_end_entry(void);
void menu_add_dep(struct expr *dep);
struct property *menu_add_prop(enum prop_type type, char *prompt, struct expr *expr, struct expr *dep);
struct property *menu_add_prompt(enum prop_type type, char *prompt, struct expr *dep);
void menu_add_expr(enum prop_type type, struct expr *expr, struct expr *dep);
void menu_add_symbol(enum prop_type type, struct symbol *sym, struct expr *dep);
void menu_add_option(int token, char *arg);
void menu_finalize(struct menu *parent);
void menu_set_type(int type);

/* util.c */
struct file *file_lookup(const char *name);
int file_write_dep(const char *name);

struct gstr {
	size_t len;
	char  *s;
struct gstr str_new(void);
struct gstr str_assign(const char *s);
void str_free(struct gstr *gs);
void str_append(struct gstr *gs, const char *s);
void str_printf(struct gstr *gs, const char *fmt, ...);
const char *str_get(struct gstr *gs);

/* symbol.c */
void sym_init(void);
void sym_clear_all_valid(void);
void sym_set_all_changed(void);
void sym_set_changed(struct symbol *sym);
struct symbol *sym_check_deps(struct symbol *sym);
struct property *prop_alloc(enum prop_type type, struct symbol *sym);
struct symbol *prop_get_symbol(struct property *prop);

static inline tristate sym_get_tristate_value(struct symbol *sym)
	return sym->curr.tri;

static inline struct symbol *sym_get_choice_value(struct symbol *sym)
	return (struct symbol *)sym->curr.val;

static inline bool sym_set_choice_value(struct symbol *ch, struct symbol *chval)
	return sym_set_tristate_value(chval, yes);

static inline bool sym_is_choice(struct symbol *sym)
	return sym->flags & SYMBOL_CHOICE ? true : false;

static inline bool sym_is_choice_value(struct symbol *sym)
	return sym->flags & SYMBOL_CHOICEVAL ? true : false;

static inline bool sym_is_optional(struct symbol *sym)
	return sym->flags & SYMBOL_OPTIONAL ? true : false;

static inline bool sym_has_value(struct symbol *sym)
	return sym->flags & SYMBOL_DEF_USER ? true : false;

#ifdef __cplusplus

#endif /* LKC_H */