A negative return value of "gethostname" is assigned to signed variable "ret".
Function "gethostname(&state->hostname, 64UL)" returns a negative number.
 1170    ret = gethostname(state->hostname, HOST_NAME_MAX);
At conditional (1): "ret" taking the true branch.
 1171    if (ret) {
At conditional (2): "2 <= debug_level" taking the true branch.
At conditional (3): "debug_timestamps" taking the true branch.
"ret" is passed to a parameter that cannot be negative.
 1172        DEBUG(2, ("gethostname() failed: [%d]: %s\n",ret, strerror(ret)));
 1173        return NULL;
 1174    }