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validate hooks after parsing

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Signed-off-by: Andrew Gregory <andrew.gregory.8@gmail.com>
Signed-off-by: Allan McRae <allan@archlinux.org>
This commit is contained in:
Andrew Gregory 2015-10-16 20:28:26 -04:00 committed by Allan McRae
parent 16718a216e
commit e8e872c8f9
1 changed files with 64 additions and 1 deletions
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65
lib/libalpm/hook.c
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@ -79,6 +79,68 @@ static void _alpm_hook_free(struct _alpm_hook_t *hook)
}
}
static int _alpm_trigger_validate(alpm_handle_t *handle,
struct _alpm_trigger_t *trigger, const char *file)
{
int ret = 0;
if(trigger->targets == NULL) {
ret = -1;
_alpm_log(handle, ALPM_LOG_ERROR,
_("Missing trigger targets in hook: %s\n"), file);
}
if(trigger->type == 0) {
ret = -1;
_alpm_log(handle, ALPM_LOG_ERROR,
_("Missing trigger type in hook: %s\n"), file);
}
if(trigger->op == 0) {
ret = -1;
_alpm_log(handle, ALPM_LOG_ERROR,
_("Missing trigger operation in hook: %s\n"), file);
}
return ret;
}
static int _alpm_hook_validate(alpm_handle_t *handle,
struct _alpm_hook_t *hook, const char *file)
{
alpm_list_t *i;
int ret = 0;
if(hook->triggers == NULL) {
/* special case: allow triggerless hooks as a way of creating dummy
* hooks that can be used to mask lower priority hooks */
return 0;
}
for(i = hook->triggers; i; i = i->next) {
if(_alpm_trigger_validate(handle, i->data, file) != 0) {
ret = -1;
}
}
if(hook->cmd == NULL) {
ret = -1;
_alpm_log(handle, ALPM_LOG_ERROR,
_("Missing Exec option in hook: %s\n"), file);
}
if(hook->when == 0) {
ret = -1;
_alpm_log(handle, ALPM_LOG_ERROR,
_("Missing When option in hook: %s\n"), file);
} else if(hook->when != ALPM_HOOK_PRE_TRANSACTION && hook->abort_on_fail) {
_alpm_log(handle, ALPM_LOG_WARNING,
_("AbortOnFail set for PostTransaction hook: %s\n"), file);
}
return ret;
}
static int _alpm_hook_parse_cb(const char *file, int line,
const char *section, char *key, char *value, void *data)
{
@ -395,7 +457,8 @@ int _alpm_hook_run(alpm_handle_t *handle, enum _alpm_hook_when_t when)
ret = -1; closedir(d); goto cleanup);
_alpm_log(handle, ALPM_LOG_DEBUG, "parsing hook file %s\n", path);
if(parse_ini(path, _alpm_hook_parse_cb, &ctx) != 0) {
if(parse_ini(path, _alpm_hook_parse_cb, &ctx) != 0
|| _alpm_hook_validate(handle, ctx.hook, path)) {
_alpm_log(handle, ALPM_LOG_DEBUG, "parsing hook file %s failed\n", path);
_alpm_hook_free(ctx.hook);
ret = -1;