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INT 61 - FTP Software PC/TCP - TCP/IP TSR System Call interface
AH = system call number (see also entries below)
01h "pkt_alloc"
02h "pkt_free"
Return: CF clear if successful
CF set on error
AL = basic error (see below)
AH = suberror number
Notes: the installation check consists of testing for the signature "TCPTSR"
three bytes beyond the start of the interrupt handler
INT 61 is the default; PC/TCP v2.05 may be configured to use any
interrupt from 20h through E0h
BUG: the SLIP kernel for v2.05 bounds-checks the wrong register, so values
greater than 54h in AH may crash the system. Other kernels may have
this bug as well.
SeeAlso: INT 61/AH=2Ah,INT 61/AH=54h
Values for error code:
00h "NET_NOERR" successful
01h "NET_ERR_INUSE" protocol or socket already in use
02h "NET_DOS_ERR" MSDOS error (returned as suberror code in AH)
03h "NET_ERR_NOMEM" out of memory
04h "NET_ERR_NOTNETCONN" not a network descriptor
05h "NET_ERR_ILLEGALOP" invalid operation on given kind of network descriptor
06h "NET_ERR_BADPKT" illegal or corrupted packet
07h "NET_ERR_NOHOST" no host bound to specified connection
08h "NET_ERR_CANTOPEN" unable to open file
09h "NET_ERR_NET_UNREACHABLE" network is unreachable
0Ah "NET_ERR_HOST_UNREACHABLE" host is unreachable
0Bh "NET_ERR_PROT_UNREACHABLE" protocol is unreachable
0Ch "NET_ERR_PORT_UNREACHABLE" port is unreachable
0Dh "NET_ERR_TIMEOUT" operation timed out
0Eh "NET_ERR_HOSTUNKNOWN" unable to resolve host name
0Fh "NET_ERR_NOSERVERS" no name servers configured
10h "NET_ERR_SERVER_ERR" bad reply from name server
11h "NET_ERR_BADFORMAT" bad format for IP address or field in IP address struc
is zero
12h "NET_ERR_BADARG" invalid argument
13h "NET_ERR_EOF" foreign host closed its end of connection
14h "NET_ERR_RESET" connection has been reset
15h "NET_ERR_WOULDBLOCK" recv() call was done on a non-blocking connection
with no data available
16h "NET_ERR_UNBOUND" insufficient resources to do operation
17h "NET_ERR_NODESC" could not allocate network descriptor
18h "NET_ERR_BADSYSCALL" invalid/unsupported kernel call
19h "NET_ERR_CANTBROADCAST" unable to broadcast
1Ah "NET_ERR_NOTESTAB" operation illegal because connection not established
1Bh kernel busy, try again later
See Also:
6100
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