play: Always check arg count and init keymap.

Currently we miss to do so if the config file does not exist or
is empty. This triggers the following assertion if, in addition,
no non-option arguments given:

        para_play: string.c:62: para_malloc: Assertion `size' failed.

This is because we try to allocate a zero sized buffer in main() due
to lls_num_inputs() returning 0. Fix this by changing the target of
the goto in handle_help_flags().

This bug was introduced during the conversion to lopsub.

diff --git a/play.c b/play.c
index b304e427183d264b09d38eabbc0ec6c77990dec3..bd94fcd9dedb8481185b79320919bce7ede63c70 100644 (file)
--- a/play.c
+++ b/play.c
@@ -178,7 +178,7 @@ static void parse_config_or_die(int argc, char *argv[])
                if (ret == -ERRNO_TO_PARA_ERROR(ENOENT) && OPT_GIVEN(CONFIG_FILE))
                        goto free_cf;
                ret = 0;
-               goto free_cf;
+               goto check_arg_count;
        }
        ret = lls(lls_convert_config(map, sz, NULL, &cf_argv, &errctx));
        para_munmap(map, sz);
@@ -196,7 +196,7 @@ static void parse_config_or_die(int argc, char *argv[])
        lls_free_parse_result(play_lpr, cmd);
        play_lpr = merged_lpr;
        loglevel = OPT_UINT32_VAL(LOGLEVEL);
-
+check_arg_count:
        ret = lls(lls_check_arg_count(play_lpr, 1, INT_MAX, &errctx));
        if (ret < 0)
                goto free_cf;