- /* now add the missing entry */
- if (!internal)
- uci_add_history(ctx, p, UCI_CMD_ADD, section, option, value);
- if (s)
- uci_alloc_option(s, option, value);
- else
- uci_alloc_section(p, value, section);
+ UCI_HANDLE_ERR(ctx);
+ uci_expand_ptr(ctx, ptr, false);
+ UCI_ASSERT(ctx, ptr->value);
+ UCI_ASSERT(ctx, ptr->s || (!ptr->option && ptr->section));
+ if (!ptr->option && ptr->value[0]) {
+ UCI_ASSERT(ctx, uci_validate_type(ptr->value));
+ }
+
+ if (!ptr->o && ptr->s && ptr->option) {
+ struct uci_element *e;
+ e = uci_lookup_list(&ptr->s->options, ptr->option);
+ if (e)
+ ptr->o = uci_to_option(e);
+ }
+ if (!ptr->value[0]) {
+ /* if setting a nonexistant option/section to a nonexistant value,
+ * exit without errors */
+ if (!(ptr->flags & UCI_LOOKUP_COMPLETE))
+ return 0;
+
+ return uci_delete(ctx, ptr);
+ } else if (!ptr->o && ptr->option) { /* new option */
+ ptr->o = uci_alloc_option(ptr->s, ptr->option, ptr->value);
+ ptr->last = &ptr->o->e;
+ } else if (!ptr->s && ptr->section) { /* new section */
+ ptr->s = uci_alloc_section(ptr->p, ptr->value, ptr->section);
+ ptr->last = &ptr->s->e;
+ } else if (ptr->o && ptr->option) { /* update option */
+ if ((ptr->o->type == UCI_TYPE_STRING) &&
+ !strcmp(ptr->o->v.string, ptr->value))
+ return 0;
+ uci_free_option(ptr->o);
+ ptr->o = uci_alloc_option(ptr->s, ptr->option, ptr->value);
+ ptr->last = &ptr->o->e;
+ } else if (ptr->s && ptr->section) { /* update section */
+ char *s = uci_strdup(ctx, ptr->value);
+
+ if (ptr->s->type == uci_dataptr(ptr->s)) {
+ ptr->last = NULL;
+ ptr->last = uci_realloc(ctx, ptr->s, sizeof(struct uci_section));
+ ptr->s = uci_to_section(ptr->last);
+ uci_list_fixup(&ptr->s->e.list);
+ } else {
+ free(ptr->s->type);
+ }
+ ptr->s->type = s;
+ } else {
+ UCI_THROW(ctx, UCI_ERR_INVAL);
+ }
+
+ if (!internal && ptr->p->has_delta)
+ uci_add_delta(ctx, &ptr->p->delta, UCI_CMD_CHANGE, ptr->section, ptr->option, ptr->value);