/usr/share/ofono/scripts/cdma-set-credentials is in ofono-scripts 1.12.bzr6858+14.04.20140318-0ubuntu1.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 | #!/usr/bin/python3
import dbus
import sys
bus = dbus.SystemBus()
manager = dbus.Interface(bus.get_object('org.ofono', '/'),
						'org.ofono.Manager')
modems = manager.GetModems()
for path, properties in modems:
	if "org.ofono.cdma.ConnectionManager" not in properties["Interfaces"]:
		continue
	cm = dbus.Interface(bus.get_object('org.ofono', path),
					'org.ofono.cdma.ConnectionManager')
	print("Connecting CDMA Packet Data Service on modem %s..." % path)
	if len(sys.argv) > 1:
		cm.SetProperty("Username", (sys.argv[1]))
		print("Setting Username to %s" % (sys.argv[1]))
	if len(sys.argv) > 2:
		cm.SetProperty("Password", (sys.argv[2]))
		print("Setting Password to %s" % (sys.argv[2]))
 |