/*
* Check magic value and current state; bail if it isn't valid.
*
* This is designed to catch serious programming errors that violate
* the libarchive API.
*/
void
__archive_check_magic(struct archive *a, unsigned int magic,
unsigned int state, const char *function)
{
if (a->magic != magic) {
errmsg("INTERNAL ERROR: Function ");
errmsg(function);
errmsg(" invoked with invalid struct archive structure.\n");
diediedie();
}
if (state == ARCHIVE_STATE_ANY)
return;
if ((a->state & state) == 0) {
errmsg("INTERNAL ERROR: Function '");
errmsg(function);
errmsg("' invoked with archive structure in state '");
write_all_states(a->state);
errmsg("', should be in state '");
write_all_states(state);
errmsg("'\n");
diediedie();
}
}
/*
* Check magic value and current state.
* Magic value mismatches are fatal and result in calls to abort().
* State mismatches return ARCHIVE_FATAL.
* Otherwise, returns ARCHIVE_OK.
*
* This is designed to catch serious programming errors that violate
* the libarchive API.
*/
int
__archive_check_magic(struct archive *a, unsigned int magic,
unsigned int state, const char *function)
{
char states1[64];
char states2[64];
const char *handle_type;
/*
* If this isn't some form of archive handle,
* then the library user has screwed up so bad that
* we don't even have a reliable way to report an error.
*/
handle_type = archive_handle_type_name(a->magic);
if (!handle_type) {
errmsg("PROGRAMMER ERROR: Function ");
errmsg(function);
errmsg(" invoked with invalid archive handle.\n");
diediedie();
}
if (a->magic != magic) {
archive_set_error(a, -1,
"PROGRAMMER ERROR: Function '%s' invoked"
" on '%s' archive object, which is not supported.",
function,
handle_type);
a->state = ARCHIVE_STATE_FATAL;
return (ARCHIVE_FATAL);
}
if ((a->state & state) == 0) {
/* If we're already FATAL, don't overwrite the error. */
if (a->state != ARCHIVE_STATE_FATAL)
archive_set_error(a, -1,
"INTERNAL ERROR: Function '%s' invoked with"
" archive structure in state '%s',"
" should be in state '%s'",
function,
write_all_states(states1, a->state),
write_all_states(states2, state));
a->state = ARCHIVE_STATE_FATAL;
return (ARCHIVE_FATAL);
}
return ARCHIVE_OK;
}
