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Table 558

Format of DESQview/X socket record:
Offset	Size	Description	)
 00h	WORD	signature F0ADh
 02h	WORD	function number (see #00557)
 04h	WORD	returned error code (see #00578)
 06h	WORD	maximum message size??? (usually 0400h)
 08h	WORD	PSP segment to use or 0000h if socket not valid
 0Ah	WORD	scratch space (JFT size)
 0Ch	DWORD	scratch space (JFT address)
 10h	DWORD	mailbox handle (initialized by function 0000h)
 14h	DWORD	timer object handle (initialized by function 0000h)
---function 0000h---
 18h	WORD	(ret) ???
---function 0001h---
 18h	WORD	(ret) status???
 1Ah 128 BYTEs	(ret) ASCIZ hostname (empty string if not on network)
 9Ah	WORD	maximum length of hostname to return
---function 0002h---
 18h	WORD	(ret) status
 1Ah	WORD	socket's file handle
 1Ch	WORD	IOCTL function
		05h "FIONREAD" determine available input
		06h "FIONBIO" set blocking state of socket
 1Eh	WORD	(return, subfn 05h) number of bytes available for reading
		(call, subfn 06h) 0000h blocking, nonzero nonblocking
---function 0003h---
 18h  2 BYTEs	unused
 1Ah	WORD	delay time in seconds
---function 0004h---
 18h	WORD	(ret) result in network (big-endian) byte order
 1Ah	WORD	value to convert to network byte order
---function 0005h---
 18h	WORD	(ret) number of handles meeting the specified conditions???
 1Ah	WORD	number of file handles in each bitset
 1Ch	DWORD	bitset of socket handles to check for readability
 20h	DWORD	bitset of socket handles to check for writability
 24h	DWORD	bitset of socket handles to check for errors
 28h	WORD	timeout in ??? or 0000h to block until some socket ready
 2Ah	DWORD	???
 2Eh	DWORD	???
---function 0006h---
 18h	WORD	(ret) status: 0000h if successful, FFFFh on error
 1Ah	WORD	socket's file handle
---function 0008h---
 18h	WORD	(ret) status: 0000h if successful, FFFFh on error
 1Ah	WORD	socket's file handle
 1Ch	WORD	0001h if socket name specified, 0000h if not
 1Eh	WORD	length of socket name
 20h  N BYTEs	name of socket to which to connect
---function 0009h---
 18h	WORD	(ret) number of bytes actually read, 0000h if connection
			closed, or FFFFh on error
 1Ah	WORD	socket's file handle
 1Ch	WORD	number of bytes to read
 1Eh	WORD	flags
 20h	WORD	0000h if no source address desired
		0001h if source address is to be stored (datagram sockets)
 22h	WORD	length of source address
 24h 110 BYTEs	source address
 92h 1K BYTEs	buffer for data to be read
---function 000Ah---
 18h	WORD	(ret) socket's file handle or FFFFh on error
 1Ah	WORD	address family (0001h,0002h)
 1Ch	WORD	socket type
 1Eh	WORD	protocol
---function 000Bh---
 18h	WORD	(ret) 0001h if ??? or FFFFh on error
 1Ah	WORD	socket's file handle
 1Eh	WORD	(call) ???
---function 000Ch---
 18h 128 BYTEs	ASCIZ hostname (special case if empty string or "unix")
 98h	???	(ret) packed 'hostent' structure
 A2h	???	(ret) ???
---function 000Dh---
 18h	WORD	(ret) number of bytes actually written or FFFFh on error
 1Ah	WORD	socket's file handle
 1Ch	WORD	number of bytes to write
 1Eh	WORD	number of bytes to follow in subsequent writes???
 20h	WORD	flags
 22h	WORD	0000h if no destination specified, 0001h if destination present
 24h	WORD	0001h if broadcast message???, 0000h if not
		(ignored if no destination specified)
 26h	WORD	length of destination address
 28h 110 BYTEs	destination address
 96h 1K BYTEs	buffer containing data to be written
---function 000Eh---
 no additional fields
---function 000Fh---
 18h	DWORD	(ret) DESQview task handle of calling process
---function 0010h---
 18h	DWORD	(ret) current time
 1Ch	DWORD	(ret) ???
---function 0011h---
 18h	WORD	(ret) status: 0000h if successful, FFFFh on error
 1Ah	WORD	socket's file handle
 1Ch	WORD	length of name
 1Eh  N BYTEs	buffer for socket name
---function 0012h---
 18h	WORD	(ret) status: 0000h if successful, FFFFh on error
 1Ah	WORD	socket's file handle
 1Ch	WORD	maximum backlog of pending connections allowed on socket
---function 0013h---
 18h	WORD	(ret) file handle for new connection or FFFFh on error
 1Ah	WORD	listen()ing socket's file handle
 1Ch	WORD	(call) length of buffer for connecting entity's address
		(ret) actual length of address
 1Eh  N BYTEs	buffer for connecting entity's address (110 bytes???)
---function 0014h---
 18h	WORD	(ret) socket's file handle or FFFFh on error
 1Ah  4 BYTEs	(ret) ???
 1Eh	WORD	(ret) ???
 20h	WORD	(ret) ???
 22h 256 BYTEs	ASCIZ X display name
122h	???
---function 0015h---
 18h	WORD	(call) type of address??? (test for 0001h seen)
 1Ah	WORD	(call) length of buffer for host address
 1Ch 110 BYTEs	buffer containing ASCIZ host address
 8Ah	WORD	(ret) offset of official host name
 8Ch	WORD	(ret) offset of alias list???
 8Eh	WORD	(ret) address type???
 90h	WORD	(ret) length of an address in bytes???
 92h	WORD	(ret) offset of address???
 9Ah  N BYTEs	(ret) buffer for hostname, alias list, and host address
---function 0016h---
 18h	???	buffer for ASCIZ protocol name
 98h	???
---function 0017h---
 18h	WORD	(call) protocol number
 1Ah	WORD	(ret) ??? or 0001h
---function 0018h---
 18h 128 BYTEs	buffer containing ASCIZ ???
 98h 128 BYTEs	buffer containing ASCIZ ???
118h	WORD	(ret) ???
---function 0019h---
 18h	WORD	port number
 1Ah 128 BYTEs	(call) ASCIZ host name
		(ret) packed servent strctures???
 9Ah	WORD	(ret) ???
---function 001Ah---
 18h	WORD	(ret) 0000h if successful, FFFFh on error
 1Ah	WORD	socket's file handle
 1Ch	WORD	(call) length of buffer for socket name
		(ret) actual length of socket name
 1Eh  N BYTEs	buffer for socket name
---function 001Bh---
 18h	WORD	(ret) status: 0000h if successful, FFFFh on error
 1Ah	WORD	socket's file handle
 1Ch	WORD	(call) size of buffer for name
		(ret) actual size of name
 1Eh  N BYTEs	buffer for peer's name
---function 001Ch---
 18h	WORD	(ret) status: 0000h if successful, FFFFh on error
 1Ah	WORD	direction: 0000h to get, 0001h to set
 1Ch	WORD	socket's file handle
 1Eh	WORD	option level
 20h	WORD	option name
 22h	WORD	(call) length of buffer for option value
		(ret) actual length of option value
 24h  N BYTEs	buffer for option value
---function 001Dh---
 no additional fields
---function 001Eh---
 18h	WORD	(ret) status: 0000h ??? or 0001h ???
 1Ah	WORD	file handle which may or may not be a socket
---function 001Fh---
 18h	WORD	(ret) file handle or FFFFh on error
 1Ah	DWORD	(call) pointer to Socket Context Record (see #00579) of a
			previously detached socket
---function 0020h---
 18h	WORD	(ret) status: 0000h if successful or FFFFh on error
 1Ah	WORD	socket's file handle
 1Ch	DWORD	(ret) pointer to Socket Context Record (see #00579) for
			the file handle
---function 0021h---
 18h 64 BYTEs	buffer for DESQview startup directory (see AX=DE25h)
---function 0022h---
 18h	DWORD	(ret) task handle of new application
 1Ch	WORD	size of .DVP data
 1Eh 129 BYTEs	ASCIZ ???
 9Fh  N BYTEs	.DVP data (see #00427 at AX=102Ch)
---function 0023h---
 18h	WORD	(ret) ??? or FFFFh on error
 1Ah	WORD	socket's file handle???
---function 0024h---
 18h	WORD	(ret) DOS error code (see #01680 at INT 21/AH=59h/BX=0000h)
			0000h if successful
 1Ah 129 BYTEs	ASCIZ filename/pathname
11Bh 129 BYTEs	ASCIZ canonicalized filename/pathname (see INT 21/AH=60h)
---function 0025h---
 18h	WORD	value of AX
 1Ah	WORD	value of BX
 1Ch	WORD	(call) value of CX for call if AH value other than 12h
		(call) number of stack parameters if AH value is 12h
		(ret) returned CX for calls other than INT 15/AH=12h
 1Eh	WORD	value of DX
 20h	WORD	value of DI
 22h	WORD	value of SI
 24h	WORD	value of DS
 26h	WORD	value of ES
 28h	WORD	(ret) value of FLAGS after call
 2Ah  N DWORDs	(call) stack parameters for INT 15/AH=12h call
		(ret) stack results from INT 15/AH=12h call
---function 0026h---
 18h	WORD	(call) Network Manager subfunction (see #00559)
		(ret) status??? (0000h on error)
 1Ah	WORD	(call) size of parameter data
		(ret) size of returned data
 1Ch  N BYTEs	(call) parameter data required by call (see #00560,#00561,#00577)
		(ret) result data (see #00570,#00571,#00576)
---function 0027h---
 18h	WORD	(ret) status: 0000h if successful, FFFFh on error
 1Ah	WORD	socket's file handle
---functions 0028h,0029h---
 18h	WORD	(call) file handle for which to set priority low/high
			FFFFh to change calling task's priority
---function 002Ah---
 no additional fields


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  Copyright 2000   by Ralf Brown     Updated Jul 2000