text
stringlengths
0
99.6k
Sent by sending program to terminate a ZMODEM session. Receiver
responds with its own ZZZZFFFFIIIINNNN.
11.10 ZZZZRRRRPPPPOOOOSSSS
Sent by receiver to force file transfer to resume at file offset
given in ZP0...ZP3.
__________
2. Or ZZZZCCCCOOOOMMMMPPPPLLLL in case of server mode.
Chapter 11 Rev 10-27-87 Typeset 10-27-87 28
Chapter 11 ZMODEM Protocol 29
11.11 ZZZZDDDDAAAATTTTAAAA
ZP0...ZP3 contain file offset. One or more data subpackets follow.
11.12 ZZZZEEEEOOOOFFFF
Sender reports End of File. ZP0...ZP3 contain the ending file
offset.
11.13 ZZZZFFFFEEEERRRRRRRR
Error in reading or writing file, protocol equivalent to ZZZZAAAABBBBOOOORRRRTTTT.
11.14 ZZZZCCCCRRRRCCCC
Request (receiver) and response (sender) for file polynomial.
ZP0...ZP3 contain file polynomial.
11.15 ZZZZCCCCHHHHAAAALLLLLLLLEEEENNNNGGGGEEEE
Request sender to echo a random number in ZP0...ZP3 in a ZACK frame.
Sent by the receiving program to the sending program to verify that
it is connected to an operating program, and was not activated by
spurious data or a Trojan Horse message.
11.16 ZZZZCCCCOOOOMMMMPPPPLLLL
Request now completed.
11.17 ZZZZCCCCAAAANNNN
This is a pseudo frame type returned by gethdr() in response to a
Session Abort sequence.
11.18 ZZZZFFFFRRRREEEEEEEECCCCNNNNTTTT
Sending program requests a ZACK frame with ZP0...ZP3 containing the
number of free bytes on the current file system. A value of 0
represents an indefinite amount of free space.
11.19 ZZZZCCCCOOOOMMMMMMMMAAAANNNNDDDD
ZCOMMAND is sent in a binary frame. ZZZZFFFF0000 contains 0000 or ZZZZCCCCAAAACCCCKKKK1111 (see
below).
A ZCRCW data subpacket follows, with the ASCII text command string
terminated with a NULL character. If the command is intended to be
executed by the operating system hosting the receiving program
(e.g., "shell escape"), it must have "!" as the first character.
Otherwise the command is meant to be executed by the application
program which receives the command.
Chapter 11 Rev 10-27-87 Typeset 10-27-87 29
Chapter 11 ZMODEM Protocol 30