kconfig: loop as long as we changed some symbols in randconfig

[carl9170fw.git] / config / conf.c

diff --git a/config/conf.c b/config/conf.c
index b8ba1d3e53b578e5fc4e62f27d6d51063077b923..e308f5bf09a546b85017eea5e551ddbc8ceecc7b 100644 (file)
--- a/config/conf.c
+++ b/config/conf.c
@@ -13,6 +13,7 @@
 #include <getopt.h>
 #include <sys/stat.h>
 #include <sys/time.h>
+#include <errno.h>
 
 #include "lkc.h"
 
@@ -35,6 +36,7 @@ enum input_mode {
 } input_mode = oldaskconfig;
 
 static int indent = 1;
+static int tty_stdio;
 static int valid_stdin = 1;
 static int conf_cnt;
 static char line[128];
@@ -105,6 +107,8 @@ static int conf_askvalue(struct symbol *sym, const char *def)
        case oldaskconfig:
                fflush(stdout);
                xfgets(line, 128, stdin);
+               if (!tty_stdio)
+                       printf("\n");
                return 1;
        default:
                break;
@@ -482,6 +486,8 @@ int main(int ac, char **av)
        bindtextdomain(PACKAGE, LOCALEDIR);
        textdomain(PACKAGE);
 
+       tty_stdio = isatty(0) && isatty(1) && isatty(2);
+
        while ((opt = getopt_long(ac, av, "", long_opts, NULL)) != -1) {
                input_mode = (enum input_mode)opt;
                switch (opt) {
@@ -493,14 +499,24 @@ int main(int ac, char **av)
                {
                        struct timeval now;
                        unsigned int seed;
+                       char *seed_env;
 
                        /*
                         * Use microseconds derived seed,
                         * compensate for systems where it may be zero
                         */
                        gettimeofday(&now, NULL);
-
                        seed = (unsigned int)((now.tv_sec + 1) * (now.tv_usec + 1));
+
+                       seed_env = getenv("KCONFIG_SEED");
+                       if( seed_env && *seed_env ) {
+                               char *endp;
+                               int tmp = (int)strtol(seed_env, &endp, 0);
+                               if (*endp == '\0') {
+                                       seed = tmp;
+                               }
+                       }
+                       fprintf( stderr, "KCONFIG_SEED=0x%X\n", seed );
                        srand(seed);
                        break;
                }
@@ -552,7 +568,9 @@ int main(int ac, char **av)
        case alldefconfig:
        case randconfig:
                name = getenv("KCONFIG_ALLCONFIG");
-               if (name && (strcmp(name, "") != 0) && (strcmp(name, "1") != 0)) {
+               if (!name)
+                       break;
+               if ((strcmp(name, "") != 0) && (strcmp(name, "1") != 0)) {
                        if (conf_read_simple(name, S_DEF_USER)) {
                                fprintf(stderr,
                                        _("*** Can't read seed configuration \"%s\"!\n"),
@@ -581,7 +599,7 @@ int main(int ac, char **av)
                break;
        }
 
-       valid_stdin = isatty(0) && isatty(1) && isatty(2);
+       valid_stdin = tty_stdio;
 
        switch (input_mode) {
        case allnoconfig:
@@ -597,7 +615,8 @@ int main(int ac, char **av)
                conf_set_all_new_symbols(def_default);
                break;
        case randconfig:
-               conf_set_all_new_symbols(def_random);
+               /* Really nothing to do in this loop */
+               while (conf_set_all_new_symbols(def_random)) ;
                break;
        case defconfig:
                conf_set_all_new_symbols(def_default);