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-rw-r--r--gdb/cli/cli-setshow.c30
1 files changed, 15 insertions, 15 deletions
diff --git a/gdb/cli/cli-setshow.c b/gdb/cli/cli-setshow.c
index 521ac0e..dccf425 100644
--- a/gdb/cli/cli-setshow.c
+++ b/gdb/cli/cli-setshow.c
@@ -182,27 +182,27 @@ do_setshow_command (char *arg, int from_tty, struct cmd_list_element *c)
xfree (*(char **) c->var);
*(char **) c->var = xstrdup (arg);
break;
- case var_optional_filename:
- if (arg == NULL)
- arg = "";
- if (*(char **) c->var != NULL)
- xfree (*(char **) c->var);
- *(char **) c->var = xstrdup (arg);
- break;
case var_filename:
if (arg == NULL)
error_no_arg (_("filename to set it to."));
+ /* FALLTHROUGH */
+ case var_optional_filename:
if (*(char **) c->var != NULL)
xfree (*(char **) c->var);
- {
- /* Clear trailing whitespace of filename. */
- char *ptr = arg + strlen (arg) - 1;
- while (ptr >= arg && (*ptr == ' ' || *ptr == '\t'))
- ptr--;
- *(ptr + 1) = '\0';
- }
- *(char **) c->var = tilde_expand (arg);
+ if (arg != NULL)
+ {
+ /* Clear trailing whitespace of filename. */
+ char *ptr = arg + strlen (arg) - 1;
+
+ while (ptr >= arg && (*ptr == ' ' || *ptr == '\t'))
+ ptr--;
+ *(ptr + 1) = '\0';
+
+ *(char **) c->var = tilde_expand (arg);
+ }
+ else
+ *(char **) c->var = xstrdup ("");
break;
case var_boolean:
*(int *) c->var = parse_binary_operation (arg);