Make options_tostring allocate its result instead of using a stack

buffer (needed for something in the future).
This commit is contained in:
nicm
2019-04-25 18:18:55 +00:00
parent 1677bb0dea
commit 32a81e197b
4 changed files with 32 additions and 41 deletions

View File

@ -110,47 +110,43 @@ options_value_free(struct options_entry *o, union options_value *ov)
free(ov->string);
}
static const char *
static char *
options_value_tostring(struct options_entry *o, union options_value *ov,
int numeric)
{
static char s[1024];
const char *tmp;
char *s;
if (OPTIONS_IS_STYLE(o))
return (style_tostring(&ov->style));
return (xstrdup(style_tostring(&ov->style)));
if (OPTIONS_IS_NUMBER(o)) {
tmp = NULL;
switch (o->tableentry->type) {
case OPTIONS_TABLE_NUMBER:
xsnprintf(s, sizeof s, "%lld", ov->number);
xasprintf(&s, "%lld", ov->number);
break;
case OPTIONS_TABLE_KEY:
tmp = key_string_lookup_key(ov->number);
s = xstrdup(key_string_lookup_key(ov->number));
break;
case OPTIONS_TABLE_COLOUR:
tmp = colour_tostring(ov->number);
s = xstrdup(colour_tostring(ov->number));
break;
case OPTIONS_TABLE_FLAG:
if (numeric)
xsnprintf(s, sizeof s, "%lld", ov->number);
xasprintf(&s, "%lld", ov->number);
else
tmp = (ov->number ? "on" : "off");
s = xstrdup(ov->number ? "on" : "off");
break;
case OPTIONS_TABLE_CHOICE:
tmp = o->tableentry->choices[ov->number];
s = xstrdup(o->tableentry->choices[ov->number]);
break;
case OPTIONS_TABLE_STRING:
case OPTIONS_TABLE_STYLE:
break;
fatalx("not a number option type");
}
if (tmp != NULL)
xsnprintf(s, sizeof s, "%s", tmp);
return (s);
}
if (OPTIONS_IS_STRING(o))
return (ov->string);
return ("");
return (xstrdup(ov->string));
return (xstrdup(""));
}
struct options *
@ -218,11 +214,8 @@ options_empty(struct options *oo, const struct options_table_entry *oe)
o = options_add(oo, oe->name);
o->tableentry = oe;
if (oe->flags & OPTIONS_TABLE_IS_ARRAY) {
if (oe->type != OPTIONS_TABLE_STRING)
fatalx("arrays can only be strings");
if (oe->flags & OPTIONS_TABLE_IS_ARRAY)
RB_INIT(&o->value.array);
}
return (o);
}
@ -443,17 +436,17 @@ options_isstring(struct options_entry *o)
return (OPTIONS_IS_STRING(o));
}
const char *
char *
options_tostring(struct options_entry *o, int idx, int numeric)
{
struct options_array_item *a;
if (OPTIONS_IS_ARRAY(o)) {
if (idx == -1)
return (NULL);
return (xstrdup(""));
a = options_array_item(o, idx);
if (a == NULL)
return ("");
return (xstrdup(""));
return (options_value_tostring(o, &a->value, numeric));
}
return (options_value_tostring(o, &o->value, numeric));