// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
*/
#include <ctype.h>
#include <limits.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <unistd.h>
#include <getopt.h>
#include <sys/time.h>
#include <errno.h>
#include "lkc.h"
static void conf(struct menu *menu);
static void check_conf(struct menu *menu);
enum input_mode {
oldaskconfig,
syncconfig,
oldconfig,
allnoconfig,
allyesconfig,
allmodconfig,
alldefconfig,
randconfig,
defconfig,
savedefconfig,
listnewconfig,
helpnewconfig,
olddefconfig,
yes2modconfig,
mod2yesconfig,
mod2noconfig,
};
static enum input_mode input_mode = oldaskconfig;
static int input_mode_opt;
static int indent = 1;
static int tty_stdio;
static int sync_kconfig;
static int conf_cnt;
static char line[PATH_MAX];
static struct menu *rootEntry;
static void print_help(struct menu *menu)
{
struct gstr help = str_new();
menu_get_ext_help(menu, &help);
printf("\n%s\n", str_get(&help));
str_free(&help);
}
static void strip(char *str)
{
char *p = str;
int l;
while ((isspace(*p)))
p++;
l = strlen(p);
if (p != str)
memmove(str, p, l + 1);
if (!l)
return;
p = str + l - 1;
while ((isspace(*p)))
*p-- = 0;
}
/* Helper function to facilitate fgets() by Jean Sacren. */
static void xfgets(char *str, int size, FILE *in)
{
if (!fgets(str, size, in))
fprintf(stderr, "\nError in reading or end of file.\n");
if (!tty_stdio)
printf("%s", str);
}
static void set_randconfig_seed(void)
{
unsigned int seed;
char *env;
bool seed_set = false;
env = getenv("KCONFIG_SEED");
if (env && *env) {
char *endp;
seed = strtol(env, &endp, 0);
if (*endp == '\0')
seed_set = true;
}
if (!seed_set) {
struct timeval now;
/*
* Use microseconds derived seed, compensate for systems where it may
* be zero.
*/
gettimeofday(&now, NULL);
seed = (now.tv_sec + 1) * (now.tv_usec + 1);
}
printf("KCONFIG_SEED=0x%X\n", seed);
srand(seed);
}
static bool randomize_choice_values(struct symbol *csym)
{
struct property *prop;
struct symbol *sym;
struct expr *e;
int cnt, def;
/*
* If choice is mod then we may have more items selected
* and if no then no-one.
* In both cases stop.
*/
if (csym->curr.tri != yes)
return false;
prop = sym_get_choice_prop(csym);
/* count entries in choice block */
cnt = 0;
expr_list_for_each_sym(prop->expr, e, sym)
cnt++;
/*
* find a random value and set it to yes,
* set the rest to no so we have only one set
*/
def = rand() % cnt;
cnt = 0;
expr_list_for_each_sym(prop->expr, e, sym) {
if (def == cnt++) {
sym->def[S_DEF_USER].tri = yes;
csym->def[S_DEF_USER].val = sym;
} else {
sym->def[S_DEF_USER].tri = no;
}
sym->flags |= SYMBOL_DEF_USER;
/* clear VALID to get value calculated */
sym->flags &= ~SYMBOL_VALID;
}
csym->flags |= SYMBOL_DEF_USER;
/* clear VALID to get value calculated */
csym->flags &= ~SYMBOL_VALID;
return true;
}
enum conf_def_mode {
def_default,
def_yes,
def_mod,
def_no,
def_random
};
static bool conf_set_all_new_symbols(enum conf_def_mode mode)
{
struct symbol *sym, *csym;
int i, cnt;
/*
* can't go as the default in switch-case below, otherwise gcc whines
* about -Wmaybe-uninitialized
*/
int pby = 50; /* probability of bool = y */
int pty = 33; /* probability of tristate = y */
int ptm = 33; /* probability of tristate = m */
bool has_changed = false;
if (mode == def_random) {
int n, p[3];
char *env = getenv("KCONFIG_PROBABILITY");
n = 0;
while (env && *env) {
char *endp;
int tmp = strtol(env, &endp, 10);
if (tmp >= 0 && tmp <= 100) {
p[n++] = tmp;
} else {
errno = ERANGE;
perror("KCONFIG_PROBABILITY");
exit(1);
}
env = (*endp == ':') ? endp + 1 : endp;
if (n >= 3)
break;
}
switch (n) {
case 1:
pby = p[0];
ptm = pby / 2;
pty = pby - ptm;
break;
case 2:
pty = p[0];
ptm = p[1];
pby = pty + ptm;
break;
case 3:
pby = p[0];
pty = p[1];
ptm = p[2];
break;
}
if (pty + ptm > 100) {
errno = ERANGE;
perror("KCONFIG_PROBABILITY");
exit(1);
}
}
for_all_symbols(i, sym) {
if (sym_has_value(sym) || sym->flags & SYMBOL_VALID)
continue;
switch (sym_get_type(sym)) {
case S_BOOLEAN:
case S_TRISTATE:<