centos 7
obsolete weakness #283

Weakness Breakdown

Definition:

An obsolete weakness occurs when someone uses deprecated or obsolete functions when building a system. As a programming language evolves, some functions occasionally become obsolete.

Warning code(s):

This C routine is considered obsolete.

File Name:

libqb-1.0.1/tests/rbreader.c

Context:

The highlighted line of code below is the trigger point of this particular Centos 7 obsolete weakness.

 int32_t main(int32_t argc, char *argv[])
{
	ssize_t num_read;

	signal(SIGINT, sigterm_handler);

	qb_log_init("rbreader", LOG_USER, LOG_EMERG);
	qb_log_ctl(QB_LOG_SYSLOG, QB_LOG_CONF_ENABLED, QB_FALSE);
	qb_log_filter_ctl(QB_LOG_STDERR, QB_LOG_FILTER_ADD,
			  QB_LOG_FILTER_FILE, "*", LOG_TRACE);
	qb_log_ctl(QB_LOG_STDERR, QB_LOG_CONF_ENABLED, QB_TRUE);

	rb = qb_rb_open("tester", ONE_MEG * 3,
			QB_RB_FLAG_SHARED_PROCESS |
			QB_RB_FLAG_CREATE, 0);

	if (rb == NULL) {
		qb_perror(LOG_ERR, "failed to create ringbuffer");
		return -1;
	}
	while (keep_reading) {
		num_read = qb_rb_chunk_read(rb, buffer,
					    ONE_MEG, 0);
		if (num_read == -ETIMEDOUT) {
			usleep(100000);
		} else if (num_read < 0) {
			errno = -num_read;
			qb_perror(LOG_ERR, "nothing to read");
		}
	}
	qb_rb_close(rb);
	return 0;
}