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Amiga Format CD 3
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Amiga Format CD03 (1996-07-04)(Future Publishing)(GB)(Track 1 of 6)[!][issue 1996-08].iso
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netsoftware
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nethandler.lha
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NetHandler
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sendpkt.c
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C/C++ Source or Header
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1989-09-16
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2KB
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60 lines
/* From: ConPackets.c - C. Scheppner, A. Finkel, P. Lindsay CBM
* DOS packet example
* Requires 1.2
*
*/
#include <exec/types.h>
#include <exec/ports.h>
#include <exec/memory.h>
#include <libraries/dos.h>
#include <libraries/dosextens.h>
#include <proto/exec.h>
#include <proto/dos.h>
LONG sendpkt(struct MsgPort *, LONG, LONG *, LONG);
LONG sendpkt(pid,action,args,nargs)
struct MsgPort *pid; /* process indentifier ... (handlers message port ) */
LONG action, /* packet type ... (what you want handler to do ) */
args[], /* a pointer to a argument list */
nargs; /* number of arguments in list */
{
struct MsgPort *replyport;
struct StandardPacket *packet;
LONG count, *pargs, res1;
replyport = (struct MsgPort *) CreatePort(NULL,0);
if(!replyport) return(NULL);
packet = (struct StandardPacket *)
AllocMem((long)sizeof(struct StandardPacket),MEMF_PUBLIC|MEMF_CLEAR);
if(!packet)
{
DeletePort(replyport);
return(NULL);
}
packet->sp_Msg.mn_Node.ln_Name = (char *)&(packet->sp_Pkt);
packet->sp_Pkt.dp_Link = &(packet->sp_Msg);
packet->sp_Pkt.dp_Port = replyport;
packet->sp_Pkt.dp_Type = action;
/* copy the args into the packet */
pargs = &(packet->sp_Pkt.dp_Arg1); /* address of first argument */
for(count=0;count < nargs;count++)
pargs[count]=args[count];
PutMsg(pid,(struct Message *)packet); /* send packet */
WaitPort(replyport);
GetMsg(replyport);
res1 = packet->sp_Pkt.dp_Res1;
FreeMem((char *)packet,(long)sizeof(struct StandardPacket));
DeletePort(replyport);
return(res1);
}