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Put some safety checks in core_options.c functions

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This commit is contained in:
twinaphex 2014-10-08 18:37:09 +02:00
parent bb7b3a0d70
commit 5774080046
1 changed files with 30 additions and 5 deletions
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35
core_options.c
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@ -173,7 +173,9 @@ error:
bool core_option_updated(core_option_manager_t *opt)
{
return opt->updated;
if (opt)
return opt->updated;
return false;
}
void core_option_flush(core_option_manager_t *opt)
@ -189,30 +191,42 @@ void core_option_flush(core_option_manager_t *opt)
size_t core_option_size(core_option_manager_t *opt)
{
return opt->size;
if (opt)
return opt->size;
return 0;
}
const char *core_option_get_desc(core_option_manager_t *opt, size_t index)
{
return opt->opts[index].desc;
if (opt)
return opt->opts[index].desc;
return NULL;
}
const char *core_option_get_val(core_option_manager_t *opt, size_t index)
{
struct core_option *option = (struct core_option*)&opt->opts[index];
return option->vals->elems[option->index].data;
if (option)
return option->vals->elems[option->index].data;
return NULL;
}
struct string_list *core_option_get_vals(
core_option_manager_t *opt, size_t index)
{
return opt->opts[index].vals;
if (opt)
return opt->opts[index].vals;
return NULL;
}
void core_option_set_val(core_option_manager_t *opt,
size_t index, size_t val_index)
{
struct core_option *option= (struct core_option*)&opt->opts[index];
if (!option)
return;
option->index = val_index % option->vals->size;
opt->updated = true;
}
@ -220,6 +234,10 @@ void core_option_set_val(core_option_manager_t *opt,
void core_option_next(core_option_manager_t *opt, size_t index)
{
struct core_option *option = (struct core_option*)&opt->opts[index];
if (!option)
return;
option->index = (option->index + 1) % option->vals->size;
opt->updated = true;
}
@ -227,6 +245,10 @@ void core_option_next(core_option_manager_t *opt, size_t index)
void core_option_prev(core_option_manager_t *opt, size_t index)
{
struct core_option *option = (struct core_option*)&opt->opts[index];
if (!option)
return;
option->index = (option->index + option->vals->size - 1) %
option->vals->size;
opt->updated = true;
@ -234,6 +256,9 @@ void core_option_prev(core_option_manager_t *opt, size_t index)
void core_option_set_default(core_option_manager_t *opt, size_t index)
{
if (!opt)
return;
opt->opts[index].index = 0;
opt->updated = true;
}