Defines starting with `p' in netccitt

• PACKET_OK netccitt/pk.h:93
• PK_ACCTFILE netccitt/x25.h:63
• PK_FACILITIES netccitt/x25.h:64
• PKHEADERLN netccitt/pk.h:140
• PK_PRLISTEN netccitt/x25.h:66
• PK_RTATTACH netccitt/x25.h:65
• POLLOFF netccitt/hdlc.h:114
• POLLON netccitt/hdlc.h:115
• PRC_IFUP netccitt/x25.h:46
• PRC_LINKDONTCOPY netccitt/x25.h:50
• PRC_LINKDOWN netccitt/x25.h:48
• PRC_LINKRESET netccitt/x25.h:49
• PRC_LINKUP netccitt/x25.h:47