return (-1);
if ((freqstr = malloc(len)) == NULL)
if (sysctl(levels_mib, 4, freqstr, &len, NULL, 0))
if (sysctl(levels_mib, 4, freqstr, &len, NULL, 0)) {
free(freqstr);
}
*numfreqs = 1;
for (p = freqstr; *p != '\0'; p++)