* command.c (do_setshow_command): Don't segfault when showing

[deliverable/binutils-gdb.git] / gdb / command.c

diff --git a/gdb/command.c b/gdb/command.c
index a5477ddd32739b9be9d42e859ad820b2f83b1235..9afbf82e59a5920c5b20c60f3f37a58f1e2563cf 100644 (file)
--- a/gdb/command.c
+++ b/gdb/command.c
@@ -1273,9 +1273,11 @@ do_setshow_command (arg, from_tty, c)
       case var_string:
        {
          unsigned char *p;
+
          fputs_filtered ("\"", gdb_stdout);
-         for (p = *(unsigned char **) c->var; *p != '\0'; p++)
-           gdb_printchar (*p, gdb_stdout, '"');
+         if (*(unsigned char **)c->var)
+           for (p = *(unsigned char **) c->var; *p != '\0'; p++)
+             gdb_printchar (*p, gdb_stdout, '"');
          fputs_filtered ("\"", gdb_stdout);
        }
        break;
@@ -1283,7 +1285,8 @@ do_setshow_command (arg, from_tty, c)
       case var_filename:
       case var_enum:
        fputs_filtered ("\"", gdb_stdout);
-       fputs_filtered (*(char **) c->var, gdb_stdout);
+       if (*(char **)c->var)
+         fputs_filtered (*(char **) c->var, gdb_stdout);
        fputs_filtered ("\"", gdb_stdout);
        break;
       case var_boolean: