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amos-pro-bsdsocket-extension
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1.1.0

This commit is contained in:
John Bintz 2024-02-24 11:42:04 -05:00
parent ff2ca6969d
commit 36b696bc45
9 changed files with 350 additions and 225 deletions
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3
.gitignore vendored
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@ -10,3 +10,6 @@ src/BSDSocket_Size.s
src/bsdsocket_lib.fd src/bsdsocket_lib.fd
src/bsdsocket_lvo.i src/bsdsocket_lvo.i
src/*.Lib src/*.Lib
.vamosrc
activate
test/

8
API.md
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@ -260,6 +260,14 @@ not cleared on a successful command!
Error number from last call. Look in <sys/error.h> for more Error number from last call. Look in <sys/error.h> for more
details. details.
#### RESULT=Socket Herrno
Get the error from the last DNS resolver command.
##### Returns
Resolver error number (`h_errno`) from last call.
#### RESULT$=Dns Get Address By Name$(Domain Name$) #### RESULT$=Dns Get Address By Name$(Domain Name$)
Look up the first IP address associated with this hostname. Look up the first IP address associated with this hostname.

17
README.md
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@ -161,7 +161,7 @@ This project uses semantic versioning.
## License ## License
Copyright 2023 John Bintz. Licensed under the MIT License. Copyright 2023-2024 John Bintz. Licensed under the MIT License.
If you use this in your project, and you really want to, If you use this in your project, and you really want to,
throw a link to theindustriousrabbit.com somewhere! You can throw a link to theindustriousrabbit.com somewhere! You can
@ -184,6 +184,12 @@ to contact me.
* Fix bug in Socket Wait Async Writing where result of getsockopt was * Fix bug in Socket Wait Async Writing where result of getsockopt was
incorrectly used. incorrectly used.
### 1.1.0 (2024-02-23)
* Fix bug in Dns Get Host Address By Name$ where it assumed AMOS strings are
null-terminated. They are not.
* Add Socket Herrno to aid in debugging resolver errors.
## Development ## Development
### Environment ### Environment
@ -191,17 +197,22 @@ to contact me.
#### Native Amiga #### Native Amiga
* Clone the [AMOS Professional source code](https://github.com/AOZ-Studio/AMOS-Professional-Official) * Clone the [AMOS Professional source code](https://github.com/AOZ-Studio/AMOS-Professional-Official)
* Copy `extensions/Intuition-41.95/AMOS/LEqu.s` to `+LEqu.s` * Copy `AMOSPro Sources/+lequ.s` to `+LEqu.s`
* Generate the socket LVO file in the `src` directory * Generate the socket LVO file in the `src` directory
* Download `https://raw.githubusercontent.com/cnvogelg/amitools/master/amitools/data/fd/bsdsocket_lib.fd` to `src` * Download `https://raw.githubusercontent.com/cnvogelg/amitools/master/amitools/data/fd/bsdsocket_lib.fd` to `src`
* `fd2pragma bsdsocket_lib.fd to "" special 20` * `fd2pragma bsdsocket_lib.fd to "" special 20`
* Fix up `absdsocket` to match your system's setup
* Run `execute absdsocket` * Run `execute absdsocket`
* Note that you'll probably have to fix up some assigns.
#### Emulated setup (WinUAE, FS-UAE, Amiberry) #### Emulated setup (WinUAE, FS-UAE, Amiberry)
Run `bin/setup` to do most of the setups above. Run `bin/setup` to do most of the setups above.
### Debugging
Modify data in the `DebugArea` and read it by `Peek`/`Deek`/`Leek`ing from
the base address provided by `Socket Get Debug Area`.
### Releasing ### Releasing
#### Ubuntu/Debian #### Ubuntu/Debian

2
bin/setup
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@ -9,7 +9,7 @@ fi
if [ ! -f src/bsdsocket_lib.fd ]; then if [ ! -f src/bsdsocket_lib.fd ]; then
cd src cd src
wgethttps://raw.githubusercontent.com/cnvogelg/amitools/master/amitools/data/fd/bsdsocket_lib.fd wget https://raw.githubusercontent.com/cnvogelg/amitools/master/amitools/data/fd/bsdsocket_lib.fd
cd .. cd ..
fi fi

42
src/AMOSMacros.s Normal file
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@ -0,0 +1,42 @@
; get the effective address of something in extension memory
Dlea MACRO
MOVE.L ExtAdr+ExtNb*16(A5),\2
ADD.W #\1-MB,\2
ENDM
; load the base of extension memory into a register
Dload MACRO
MOVE.L ExtAdr+ExtNb*16(A5),\1
ENDM
; wrap code that doesn't take arguments with these
PreserveStackInstruction MACRO
MOVEM.L A2-A6/D6-D7,-(SP)
ENDM
RestoreStackInstruction MACRO
MOVEM.L (SP)+,A2-A6/D6-D7
ENDM
; wrap code that takes arguments with these
PreserveStackFunction MACRO
MOVEM.L A2/A4-A6/D6-D7,-(SP)
ENDM
RestoreStackFunction MACRO
MOVEM.L (SP)+,A2/A4-A6/D6-D7
ENDM
; Push and pop the extension's data storage into A3
WithDataStorageToA3 MACRO
MOVE.L A3,-(SP)
Dload A3
ENDM
EndDataStorage MACRO
MOVE.L (SP)+,A3
ENDM
EvenOutStringAddress MACRO
MOVE.W \1,\2
AND.W #$0001,\2
ADD.W \2,\1
ENDM

370
src/BSDSocket.s
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@ -1,5 +1,5 @@
; BSDSocket Extension for AMOS Professional ; BSDSocket Extension for AMOS Professional
; Copyright 2023 John Bintz ; Copyright 2023-2024 John Bintz
; Licensed under the MIT License ; Licensed under the MIT License
; ;
; Writing this code the right way, 25 years later. ; Writing this code the right way, 25 years later.
@ -7,7 +7,7 @@
; extension number 18 ; extension number 18
ExtNb equ 18-1 ExtNb equ 18-1
Version MACRO Version MACRO
dc.b "1.0.1-20230403" dc.b "1.1.0-20240223"
ENDM ENDM
VerNumber equ $1 VerNumber equ $1
@ -22,176 +22,23 @@ VerNumber equ $1
Include "+AMOS_Includes.s" Include "+AMOS_Includes.s"
Include "bsdsocket_lvo.i" Include "bsdsocket_lvo.i"
; get the effective address of something in extension memory Include "LongDivide.s"
Dlea MACRO Include "Constants.s"
MOVE.L ExtAdr+ExtNb*16(A5),\2 Include "fd_set.s"
ADD.W #\1-MB,\2 Include "AMOSMacros.s"
ENDM
; load the base of extension memory into a register
Dload MACRO
MOVE.L ExtAdr+ExtNb*16(A5),\1
ENDM
; call an AmigaOS function via LVO(A6) ; call an AmigaOS function via LVO(A6)
CALLLIB MACRO CALLLIB MACRO
JSR _LVO\1(A6) JSR _LVO\1(A6)
ENDM ENDM
; bsdsocket library stuff
; ported from the various C include headers
SOCK_STREAM EQU 1
PF_INET EQU 2
AF_INET EQU PF_INET
IPPROTO_TCP EQU 6
INADDR_ANY EQU 0 ; get the BSDSocket library ready for CALLLIB
LoadBSDSocketBaseFromA3 MACRO
FIONBIO EQU $8004667E
FIONASYNC EQU $8004667D
SOL_SOCKET EQU $FFFF
SO_REUSEADDR EQU $4
MAX_SOCKETS EQU 64
len_sockaddr_in EQU 16
sockaddr_in_sin_len EQU 0
sockaddr_in_sin_family EQU 1
sockaddr_in_sin_port EQU 2
sockaddr_in_sin_addr EQU 4
; global errors
Error_OtherError EQU -1
Error_LibraryNotOpen EQU -2
Error_PortOutOfRange EQU -11
Error_FdsetOutOfRange EQU -11
Error_UnableToBind EQU -12
; wrap code that doesn't take arguments with these
PreserveStackInstruction MACRO
MOVEM.L A2-A6/D6-D7,-(SP)
ENDM
RestoreStackInstruction MACRO
MOVEM.L (SP)+,A2-A6/D6-D7
ENDM
; wrap code that takes arguments with these
PreserveStackFunction MACRO
MOVEM.L A2/A4-A6/D6-D7,-(SP)
ENDM
RestoreStackFunction MACRO
MOVEM.L (SP)+,A2/A4-A6/D6-D7
ENDM
LoadBSDSocketBase MACRO
MOVE.L BSDSocketBase-MB(A3),A6 MOVE.L BSDSocketBase-MB(A3),A6
ENDM ENDM
WithDataStorage MACRO
MOVE.L A3,-(SP)
Dload A3
ENDM
EndDataStorage MACRO
MOVE.L (SP)+,A3
ENDM
; fdset macros
EnsureValidFdset MACRO
CMP.L #MaxFd_sets,\1
BLT \2
MOVE.L #Error_FdsetOutOfRange,D3
RestoreStackFunction
Ret_Int
ENDM
EnsureValidFdsetBit MACRO
CMP.L #64,\1
BGE _EnsureValidFdsetBit_Fail\@
BRA \2
_EnsureValidFdsetBit_Fail\@:
MOVE.L \3,D3
RestoreStackFunction
Ret_Int
ENDM
LeaFdset MACRO
MOVE.L \1,-(SP)
Dlea fd_sets,\2 ; base of all, these are longs
ROL.L #3,\1 ; multiply by 8
ADD.L \1,\2 ; add to base of all
MOVE.L (SP)+,\1
ENDM
; LeaFdsetForBit fd_set reg,target address,target bit in address
LeaFdsetForBit MACRO
LeaFdset \1,\2 ; get fdset base address in \2
MOVE.L D3,-(SP)
MOVE.L \3,D3 ; Put target bit into D3
ROR.L #5,D3 ; lop off the first 5 bits
AND.L #$7,D3 ; only keep the top three
ROL.L #2,D3 ; multiply by 4
ADD.L D3,\2 ; add that value to the fdset address
AND.L #$1F,\3 ; only keep 0-31 in \3
MOVEQ #1,D3
ROL.L \3,D3 ; shift that bit left as many as target
MOVE.L D3,\3 ; put that in the target
MOVE.L (SP)+,D3
ENDM
; d0 = value to be divided
; d1 = divisor
; returns:
; d0 = divided value
; d1 = remainder
LongDivideD0ByD1 MACRO
CMP.L D0,D1
BMI _LongDivide_StartDivide\@
MOVE.L D0,D1
MOVEQ #0,D0
BRA _LongDivide_Skip\@
_LongDivide_StartDivide\@:
MOVEM.L D2-D4,-(SP)
MOVEQ #0,D2 ; remainder
MOVE.L #31,D3 ; bit tracking
; d4 tracks the status register
_LongDivide_ContinueDivide\@:
ASL.L #1,D0
SCS D4 ; bit that got rolled out
AND.L #1,D4
ROL.L #1,D2
ADD.L D4,D2 ; roll the value onto the remainder
MOVE.L D2,D4
SUB.L D1,D4
BMI _LongDivide_NotDivisible\@
ADDQ #1,D0
MOVE.L D4,D2
_LongDivide_NotDivisible\@:
DBRA D3,_LongDivide_ContinueDivide\@
MOVE.L D2,D1
MOVEM.L (SP)+,D2-D4
_LongDivide_Skip\@:
ENDM
EvenOutStringAddress MACRO
MOVE.W \1,\2
AND.W #$0001,\2
ADD.W \2,\1
ENDM
; check if we've opened the bsd socket library ; check if we've opened the bsd socket library
; we do this a lot, this could probably become something ; we do this a lot, this could probably become something
; we jsr to... ; we jsr to...
@ -330,6 +177,9 @@ C_Tk dc.w 1,0
AddTokenFunction SocketCloseSocket AddTokenFunction SocketCloseSocket
dc.b "socket close socke","t"+$80,"00",-1 dc.b "socket close socke","t"+$80,"00",-1
AddTokenFunction SocketHerrno
dc.b "socket herrn","o"+$80,"0",-1
; TOKEN_END ; TOKEN_END
dc.w 0 dc.w 0
dc.l 0 ; Important! dc.l 0 ; Important!
@ -386,6 +236,8 @@ getsockopt_len ds.l 1
MaxSocketSeen dc.w 0 MaxSocketSeen dc.w 0
sockaddr_ram ds.l 1 sockaddr_ram ds.l 1
; also used for errno tags
AcceptScratchArea ds.b 16 AcceptScratchArea ds.b 16
SelectScratchArea ds.l 2 SelectScratchArea ds.l 2
@ -438,16 +290,16 @@ End
CALLLIB OpenLibrary CALLLIB OpenLibrary
MOVE.L D0,BSDSocketBase-MB(A3) MOVE.L D0,BSDSocketBase-MB(A3)
BEQ _SocketLibraryOpen_Finish BEQ .Finish
; reserve ram for sockaddr_ins ; reserve ram for sockaddr_ins
MOVE.L #MAX_SOCKETS*len_sockaddr_in,D0 MOVE.L #MAX_SOCKETS*len_sockaddr_in,D0
Rjsr L_RamFast Rjsr L_RamFast
BEQ _SocketLibraryOpen_Finish BEQ .Finish
MOVE.L D0,sockaddr_ram-MB(A3) MOVE.L D0,sockaddr_ram-MB(A3)
_SocketLibraryOpen_Finish: .Finish:
MOVE.L BSDSocketBase-MB(A3),D3 MOVE.L BSDSocketBase-MB(A3),D3
RestoreStackInstruction RestoreStackInstruction
@ -541,7 +393,7 @@ _ToSockaddr_KeepCheckingString_2:
_ToSockaddr_ParseIPAddress: _ToSockaddr_ParseIPAddress:
Dload A3 Dload A3
LoadBSDSocketBase LoadBSDSocketBaseFromA3
CALLLIB inet_addr CALLLIB inet_addr
_ToSockaddr_DoneParsing: _ToSockaddr_DoneParsing:
@ -577,7 +429,7 @@ _SocketCreateInetSocket_LibraryOpen:
MOVE.L #SOCK_STREAM,D1 MOVE.L #SOCK_STREAM,D1
MOVE.L #IPPROTO_TCP,D2 MOVE.L #IPPROTO_TCP,D2
Dload A3 Dload A3
LoadBSDSocketBase LoadBSDSocketBaseFromA3
CALLLIB socket CALLLIB socket
MOVE.L D0,D3 MOVE.L D0,D3
@ -650,7 +502,7 @@ _SocketConnect_SockaddrIn:
; socket id is in D0 ; socket id is in D0
; sockaddr_in is in A0 ; sockaddr_in is in A0
MOVE.L #len_sockaddr_in,D1 ; len MOVE.L #len_sockaddr_in,D1 ; len
LoadBSDSocketBase LoadBSDSocketBaseFromA3
CALLLIB connect CALLLIB connect
MOVEM.L (SP)+,A0/A3 MOVEM.L (SP)+,A0/A3
@ -686,8 +538,8 @@ _SocketConnect_SockaddrIn:
_SocketSendString_LibraryOpen: _SocketSendString_LibraryOpen:
MOVEQ #0,D2 ; flags MOVEQ #0,D2 ; flags
WithDataStorage WithDataStorageToA3
LoadBSDSocketBase LoadBSDSocketBaseFromA3
CALLLIB send CALLLIB send
EndDataStorage EndDataStorage
@ -732,8 +584,8 @@ _SocketSendData_LibraryOpen:
_SocketSendData_NotNegative: _SocketSendData_NotNegative:
MOVEQ #0,D2 ; flags MOVEQ #0,D2 ; flags
WithDataStorage WithDataStorageToA3
LoadBSDSocketBase LoadBSDSocketBaseFromA3
CALLLIB send CALLLIB send
EndDataStorage EndDataStorage
@ -783,11 +635,11 @@ _SocketBind_SockaddrIn:
MOVE.L D0,A0 MOVE.L D0,A0
MOVE.L (SP)+,D0 MOVE.L (SP)+,D0
WithDataStorage WithDataStorageToA3
; socket id is in D0 ; socket id is in D0
; sockaddr_in is in A0 ; sockaddr_in is in A0
MOVE.L #len_sockaddr_in,D1 ; len MOVE.L #len_sockaddr_in,D1 ; len
LoadBSDSocketBase LoadBSDSocketBaseFromA3
CALLLIB bind CALLLIB bind
EndDataStorage EndDataStorage
@ -814,8 +666,8 @@ _SocketBind_SockaddrIn:
Ret_Int Ret_Int
_SocketErrno_LibraryOpen: _SocketErrno_LibraryOpen:
WithDataStorage WithDataStorageToA3
LoadBSDSocketBase LoadBSDSocketBaseFromA3
CALLLIB Errno CALLLIB Errno
EndDataStorage EndDataStorage
@ -849,8 +701,8 @@ _SocketListen_LibraryOpen:
MOVE.L D3,D2 MOVE.L D3,D2
MOVEQ #5,D1 MOVEQ #5,D1
WithDataStorage WithDataStorageToA3
LoadBSDSocketBase LoadBSDSocketBaseFromA3
CALLLIB listen CALLLIB listen
EndDataStorage EndDataStorage
@ -885,10 +737,10 @@ _SocketAccept_LibraryOpen:
MOVE.L D3,D2 MOVE.L D3,D2
WithDataStorage WithDataStorageToA3
Dlea AcceptScratchArea,A0 Dlea AcceptScratchArea,A0
Dlea len_sockaddr_in_ptr,A1 Dlea len_sockaddr_in_ptr,A1
LoadBSDSocketBase LoadBSDSocketBaseFromA3
CALLLIB accept CALLLIB accept
EndDataStorage EndDataStorage
@ -951,11 +803,11 @@ _SocketSetNonblocking_IsBlocking:
_SocketSetNonblocking_Ioctl: _SocketSetNonblocking_Ioctl:
WithDataStorage WithDataStorageToA3
MOVE.L D1,IoctlSockOptScratch-MB(A3) MOVE.L D1,IoctlSockOptScratch-MB(A3)
Dlea IoctlSockOptScratch,A0 Dlea IoctlSockOptScratch,A0
MOVE.L #FIONBIO,D1 MOVE.L #FIONBIO,D1
LoadBSDSocketBase LoadBSDSocketBaseFromA3
CALLLIB IoctlSocket CALLLIB IoctlSocket
MOVE.L D0,D3 MOVE.L D0,D3
@ -1013,12 +865,12 @@ _SocketGetsockoptInt_LibraryOpen:
MOVE.L #SOL_SOCKET,D1 ; level MOVE.L #SOL_SOCKET,D1 ; level
MOVE.L A3,-(SP) MOVE.L A3,-(SP)
WithDataStorage WithDataStorageToA3
Dlea IoctlSockOptScratch,A0 ; optval Dlea IoctlSockOptScratch,A0 ; optval
MOVE.L #4,getsockopt_len-MB(A3) MOVE.L #4,getsockopt_len-MB(A3)
Dlea getsockopt_len,A1 Dlea getsockopt_len,A1
LoadBSDSocketBase LoadBSDSocketBaseFromA3
CALLLIB getsockopt CALLLIB getsockopt
EndDataStorage EndDataStorage
MOVE.L (SP)+,A3 MOVE.L (SP)+,A3
@ -1339,8 +1191,8 @@ _SocketSelect_PerformSelect
_SocketInetNtoa_LibraryOpen: _SocketInetNtoa_LibraryOpen:
MOVE.L D3,D0 MOVE.L D3,D0
WithDataStorage WithDataStorageToA3
LoadBSDSocketBase LoadBSDSocketBaseFromA3
CALLLIB Inet_NtoA CALLLIB Inet_NtoA
EndDataStorage EndDataStorage
@ -1436,8 +1288,8 @@ _SocketRecvString_BufferAllocated:
MOVEM.L A0-A1/D1,-(SP) MOVEM.L A0-A1/D1,-(SP)
WithDataStorage WithDataStorageToA3
LoadBSDSocketBase LoadBSDSocketBaseFromA3
CALLLIB recv ; D0 has received length or -1 CALLLIB recv ; D0 has received length or -1
EndDataStorage EndDataStorage
@ -1530,8 +1382,8 @@ _SocketRecvData_LibraryOpen:
Ret_Int Ret_Int
_SocketRecvData_PositiveLength: _SocketRecvData_PositiveLength:
WithDataStorage WithDataStorageToA3
LoadBSDSocketBase LoadBSDSocketBaseFromA3
CALLLIB recv ; D0 has received length or -1 CALLLIB recv ; D0 has received length or -1
EndDataStorage EndDataStorage
@ -1540,8 +1392,6 @@ _SocketRecvData_PositiveLength:
RestoreStackFunction RestoreStackFunction
Ret_Int Ret_Int
; actually close the library ; actually close the library
Lib_Def DoSocketLibraryClose Lib_Def DoSocketLibraryClose
@ -1556,7 +1406,6 @@ _SocketRecvData_PositiveLength:
CLR.L sockaddr_ram-MB(A3) ; prevent double free CLR.L sockaddr_ram-MB(A3) ; prevent double free
_DoSocketLibraryClose_CloseLibrary: _DoSocketLibraryClose_CloseLibrary:
MOVE.L BSDSocketBase-MB(A3),D0 MOVE.L BSDSocketBase-MB(A3),D0
BEQ _DoSocketLibraryClose_Skip BEQ _DoSocketLibraryClose_Skip
@ -1661,12 +1510,12 @@ _SocketWaitAsyncWriting_CheckSockopt:
MOVE.L A3,-(SP) MOVE.L A3,-(SP)
WithDataStorage WithDataStorageToA3
Dlea IoctlSockOptScratch,A0 ; optval Dlea IoctlSockOptScratch,A0 ; optval
MOVE.L #4,getsockopt_len-MB(A3) MOVE.L #4,getsockopt_len-MB(A3)
Dlea getsockopt_len,A1 Dlea getsockopt_len,A1
LoadBSDSocketBase LoadBSDSocketBaseFromA3
CALLLIB getsockopt CALLLIB getsockopt
EndDataStorage EndDataStorage
@ -1871,12 +1720,12 @@ _SocketReuseAddr_LibraryOpen:
MOVE.L #SOL_SOCKET,D1 ; Level MOVE.L #SOL_SOCKET,D1 ; Level
WithDataStorage WithDataStorageToA3
Dlea IoctlSockOptScratch,A0 ; optval Dlea IoctlSockOptScratch,A0 ; optval
MOVE.L D3,A0 MOVE.L D3,A0
MOVEQ #4,D3 MOVEQ #4,D3
LoadBSDSocketBase LoadBSDSocketBaseFromA3
CALLLIB setsockopt CALLLIB setsockopt
EndDataStorage EndDataStorage
@ -1892,61 +1741,100 @@ _SocketReuseAddr_LibraryOpen:
Lib_Par DnsGetHostAddressByName Lib_Par DnsGetHostAddressByName
PreserveStackFunction PreserveStackFunction
EnsureBSDSocketLibrary _DnsGetHostAddressByName_LibraryOpen EnsureBSDSocketLibrary .LibraryOpen
MOVE.L ChVide(A5),D3 MOVE.L ChVide(A5),D3
RestoreStackFunction RestoreStackFunction
Ret_String Ret_String
_DnsGetHostAddressByName_LibraryOpen: .LibraryOpen:
; string so you need demande, hichaine, and chvide ; string so you need demande, hichaine, and chvide
MOVE.L D3,A0 ; name MOVE.L D3,A0 ; name
ADD.L #2,A0 ; skip length, string is null terminated (?) MOVE.W (A0)+,D0 ; d0 contains length
MOVE.L D0,D1 ; d1 also has length
MOVE.L D0,D2 ; d2 also has length
Rjsr L_RamFast ; d0 contains address
BNE .StringRamAllocated
WithDataStorage MOVE.L ChVide(A5),D3
LoadBSDSocketBase
CALLLIB gethostbyname RestoreStackFunction
EndDataStorage Ret_String
.StringRamAllocated:
MOVE.L D0,A1 ; a1 contains address
SUBQ #1,D1 ; reduce by one for DBRA
.KeepCopyingAMOSString
MOVE.B (A0)+,(A1)+ ; byte copy
DBRA D1,.KeepCopyingAMOSString ; keep copying
MOVE.B #0,(A1)+ ; null terminate string
MOVE.L D0,A0 ; first param of gethostbyname
MOVEM.L A0/D2,-(SP)
WithDataStorageToA3
LoadBSDSocketBaseFromA3
CALLLIB gethostbyname
EndDataStorage
MOVEM.L (SP)+,A0/D2
; free the ram before we go any farther
MOVE.L D0,-(SP)
MOVE.L A0,A1
MOVE.L D2,D0
Rjsr L_RamFree
MOVE.L (SP)+,D0
TST.L D0 TST.L D0
BNE _DnsGetHostAddressByName_GetIPAddress BNE .GetIPAddress
Dlea DebugArea,A0
MOVE.L D3,A1
MOVE.L #1,(A0)+
MOVE.W (A1),(A0)+
MOVE.W (A1),D2
MOVE.B 1(A1,D2),(A0)+
MOVE.B 2(A1,D2),(A0)+
RestoreStackFunction RestoreStackFunction
MOVE.L ChVide(A5),D3 MOVE.L ChVide(A5),D3
Ret_String Ret_String
_DnsGetHostAddressByName_GetIPAddress: .GetIPAddress:
MOVE.L D0,A0 MOVE.L D0,A0
MOVE.L 16(A0),A1 ; **h_addr_list MOVE.L 16(A0),A1 ; **h_addr_list
MOVE.L (A1),A1 ; *h_addr_list MOVE.L (A1),A1 ; *h_addr_list
MOVE.L (A1),D0 ; h_addr_list[0] MOVE.L (A1),D0 ; h_addr_list[0]
WithDataStorage WithDataStorageToA3
LoadBSDSocketBase LoadBSDSocketBaseFromA3
CALLLIB Inet_NtoA CALLLIB Inet_NtoA
EndDataStorage EndDataStorage
Dlea DebugArea,A0
MOVE.L D0,(A0)+
MOVE.L D0,A2 MOVE.L D0,A2
MOVE.L A2,-(SP) MOVE.L A2,-(SP)
MOVEQ #0,D3 MOVEQ #0,D3
_DnsGetHostAddressByName_GetIPAddressLength: .GetIPAddressLength:
ADDQ #1,D3 ADDQ #1,D3
TST.B (A2)+ TST.B (A2)+
BNE _DnsGetHostAddressByName_GetIPAddressLength BNE .GetIPAddressLength
MOVE.L (SP)+,A2 MOVE.L (SP)+,A2
Dlea DebugArea,A0
MOVE.L D3,(A0)+
Rjsr L_Demande ; string is in A0/A1 Rjsr L_Demande ; string is in A0/A1
MOVE.W D3,(A0)+ MOVE.W D3,(A0)+
SUBQ #1,D3 SUBQ #1,D3
_DnsGetHostAddressByName_KeepCopying: .KeepCopying:
MOVE.B (A2,D3),(A0,D3) MOVE.B (A2,D3),(A0,D3)
DBRA D3,_DnsGetHostAddressByName_KeepCopying DBRA D3,.KeepCopying
EvenOutStringAddress A0,D0 EvenOutStringAddress A0,D0
@ -1966,7 +1854,7 @@ _DnsGetHostAddressByName_KeepCopying:
; - - - - - - - - - - - - - ; - - - - - - - - - - - - -
PreserveStackFunction PreserveStackFunction
MOVE.L D3,D4 ; milliseconts MOVE.L D3,D4 ; milliseconds
MOVE.L (A3)+,D0 ; socket id MOVE.L (A3)+,D0 ; socket id
EnsureBSDSocketLibrary _SocketSetTimeout_LibraryOpen EnsureBSDSocketLibrary _SocketSetTimeout_LibraryOpen
@ -1988,7 +1876,7 @@ _SocketSetTimeout_LibraryOpen:
MOVE.L (A0)+,(A1)+ MOVE.L (A0)+,(A1)+
SUB.L #8,A1 ; go back SUB.L #8,A1 ; go back
WithDataStorage WithDataStorageToA3
; socket is d0 ; socket is d0
MOVE.L #SOL_SOCKET,D1 ; Level MOVE.L #SOL_SOCKET,D1 ; Level
MOVE.L #$1005,D2 ; SO_SNDTIMEO MOVE.L #$1005,D2 ; SO_SNDTIMEO
@ -1996,7 +1884,7 @@ _SocketSetTimeout_LibraryOpen:
MOVEQ #8,D3 MOVEQ #8,D3
MOVEM.L D0/A0,-(SP) MOVEM.L D0/A0,-(SP)
LoadBSDSocketBase LoadBSDSocketBaseFromA3
CALLLIB setsockopt CALLLIB setsockopt
TST.L D0 TST.L D0
@ -2007,7 +1895,7 @@ _SocketSetTimeout_LibraryOpen:
MOVE.L #$1006,D2 ; SO_RCVTIMEO MOVE.L #$1006,D2 ; SO_RCVTIMEO
MOVEQ #8,D3 MOVEQ #8,D3
LoadBSDSocketBase LoadBSDSocketBaseFromA3
CALLLIB setsockopt CALLLIB setsockopt
EndDataStorage EndDataStorage
@ -2034,17 +1922,17 @@ _SocketSetTimeout_Fail:
Lib_Par SocketCloseSocket Lib_Par SocketCloseSocket
; - - - - - - - - - - - - - ; - - - - - - - - - - - - -
PreserveStackFunction PreserveStackFunction
EnsureBSDSocketLibrary _SocketCloseSocket_LibraryOpen EnsureBSDSocketLibrary .LibraryOpen
RestoreStackFunction RestoreStackFunction
Ret_Int Ret_Int
_SocketCloseSocket_LibraryOpen: .LibraryOpen:
MOVE.L D3,D0 MOVE.L D3,D0
WithDataStorage WithDataStorageToA3
LoadBSDSocketBase LoadBSDSocketBaseFromA3
CALLLIB CloseSocket CALLLIB CloseSocket
EndDataStorage EndDataStorage
@ -2053,6 +1941,46 @@ _SocketCloseSocket_LibraryOpen:
RestoreStackFunction RestoreStackFunction
Ret_Int Ret_Int
; - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
; Int=Socket Herrno
;
; Return Herrno value, errors related to DNS resolution
; - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Lib_Par SocketHerrno
; - - - - - - - - - - - - -
PreserveStackFunction
; set up tag list memory and place for herrno to go
Dlea AcceptScratchArea,A0
MOVE.L A0,A2
Dlea SelectScratchArea,A1
; build the tag list
MOVE.L HerrnoTag,(A0)+
MOVE.L A1,(A0)+
MOVE.L 0,(A0)+
MOVE.L 0,(A0)+
MOVE.L A2,A0
WithDataStorageToA3
LoadBSDSocketBaseFromA3
CALLLIB SocketBaseTagList
EndDataStorage
TST.L D0
BEQ .success
; failed
MOVE.L #-1,D3
RestoreStackFunction
Ret_Int
.success
MOVE.L (A1),D3
RestoreStackFunction
Ret_Int
; ;
; - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ; - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
; Even if you do not have error messages, you MUST ; Even if you do not have error messages, you MUST

43
src/Constants.s Normal file
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@ -0,0 +1,43 @@
; bsdsocket library stuff
; ported from the various C include headers
SOCK_STREAM EQU 1
PF_INET EQU 2
AF_INET EQU PF_INET
IPPROTO_TCP EQU 6
INADDR_ANY EQU 0
FIONBIO EQU $8004667E
FIONASYNC EQU $8004667D
SOL_SOCKET EQU $FFFF
SO_REUSEADDR EQU $4
MAX_SOCKETS EQU 64
len_sockaddr_in EQU 16
sockaddr_in_sin_len EQU 0
sockaddr_in_sin_family EQU 1
sockaddr_in_sin_port EQU 2
sockaddr_in_sin_addr EQU 4
; global errors
Error_OtherError EQU -1
Error_LibraryNotOpen EQU -2
Error_PortOutOfRange EQU -11
Error_FdsetOutOfRange EQU -11
Error_UnableToBind EQU -12
; socket herrno and tag lists
; built from:
; * https://wiki.amigaos.net/amiga/autodocs/bsdsocket.doc.txt
; * https://github.com/deplinenoise/amiga-sdk/blob/master/netinclude/amitcp/socketbasetags.h
; * http://amigadev.elowar.com/read/ADCD_2.1/Includes_and_Autodocs_2._guide/node012E.html
TAG_USER EQU (1<<31)
SBTF_REF EQU $8000
SBTB_CODE EQU 1
SBTS_CODE EQU $3FFF
SBTC_HERRNO EQU 6
HerrnoTag EQU (TAG_USER|SBTF_REF|((SBTC_HERRNO&SBTS_CODE)<<SBTB_CODE))

43
src/LongDivide.s Normal file
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@ -0,0 +1,43 @@
; d0 = value to be divided
; d1 = divisor
; returns:
; d0 = divided value
; d1 = remainder
LongDivideD0ByD1 MACRO
CMP.L D0,D1
BMI _LongDivide_StartDivide\@
MOVE.L D0,D1
MOVEQ #0,D0
BRA _LongDivide_Skip\@
_LongDivide_StartDivide\@:
MOVEM.L D2-D4,-(SP)
MOVEQ #0,D2 ; remainder
MOVE.L #31,D3 ; bit tracking
; d4 tracks the status register
_LongDivide_ContinueDivide\@:
ASL.L #1,D0
SCS D4 ; bit that got rolled out
AND.L #1,D4
ROL.L #1,D2
ADD.L D4,D2 ; roll the value onto the remainder
MOVE.L D2,D4
SUB.L D1,D4
BMI _LongDivide_NotDivisible\@
ADDQ #1,D0
MOVE.L D4,D2
_LongDivide_NotDivisible\@:
DBRA D3,_LongDivide_ContinueDivide\@
MOVE.L D2,D1
MOVEM.L (SP)+,D2-D4
_LongDivide_Skip\@:
ENDM

47
src/fd_set.s Normal file
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@ -0,0 +1,47 @@
; fdset macros
EnsureValidFdset MACRO
CMP.L #MaxFd_sets,\1
BLT \2
MOVE.L #Error_FdsetOutOfRange,D3
RestoreStackFunction
Ret_Int
ENDM
EnsureValidFdsetBit MACRO
CMP.L #64,\1
BGE _EnsureValidFdsetBit_Fail\@
BRA \2
_EnsureValidFdsetBit_Fail\@:
MOVE.L \3,D3
RestoreStackFunction
Ret_Int
ENDM
; LeaFdset fd_set reg,target
LeaFdset MACRO
MOVE.L \1,-(SP)
Dlea fd_sets,\2 ; base of all, these are longs
ROL.L #3,\1 ; multiply by 8
ADD.L \1,\2 ; add to base of all
MOVE.L (SP)+,\1
ENDM
; LeaFdsetForBit fd_set reg,target address,target bit in address
LeaFdsetForBit MACRO
LeaFdset \1,\2 ; get fdset base address in \2
MOVE.L D3,-(SP)
MOVE.L \3,D3 ; Put target bit into D3
ROR.L #5,D3 ; lop off the first 5 bits
AND.L #$7,D3 ; only keep the top three
ROL.L #2,D3 ; multiply by 4
ADD.L D3,\2 ; add that value to the fdset address
AND.L #$1F,\3 ; only keep 0-31 in \3
MOVEQ #1,D3
ROL.L \3,D3 ; shift that bit left as many as target
MOVE.L D3,\3 ; put that in the target
MOVE.L (SP)+,D3
ENDM