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From: "Nick S. Grechukh" <ngrechukh@ua.fm>
To: community@altlinux.ru
Subject: Re: [Comm] read from socket
Date: Fri, 11 Feb 2005 14:41:33 +0200
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=D7=CF=D4 =DE=D4=CF-=D4=CF =D7 =DC=D4=CF=CD =D2=CF=C4=C5 =D0=CF=CC=D5=DE=C9=
=CC=CF=D3=D8, =D0=CF=D2=D5=C7=C1=CA=D4=C5:

typedef struct {
 char signature[8];
 int command;
 size_t msgsize;
} ctrl_header;

int operate(int sock, sq_command command, void * response, size_t len_buff)
{
 char *recvbuf;
 int n;
 ctrl_header hdr;
 memcpy(hdr.signature,"SQ1.0.00\n",10);
 hdr.command=3D1;
 hdr.msgsize=3D0;
 n =3D send(sock, &hdr, sizeof(hdr),0);
 n =3D recv(sock, &hdr, sizeof(hdr),MSG_WAITALL);
 if ((n=3D=3Dsizeof(hdr)) && (strncmp(hdr.signature,"SQ1.0.00\n",10)=3D=3D0=
)){
  if (hdr.msgsize>0){
   if ((recvbuf=3Dmalloc(hdr.msgsize))!=3DNULL){
    if ((n =3D recv(sock,recvbuf, hdr.msgsize, MSG_WAITALL))=3D=3Dhdr.msgsi=
ze){
     if ((response!=3DNULL) && (len_buff>=3D0)) {
      memcpy(response,recvbuf,len_buff);
     }
    } else {
     //maybe socket error, count of received data<than promised
    }
    free(recvbuf);
   } else {
    // allocation error
   };
  }
 } else {
  // maybe again socket error, or there is no squash on that side...
 }
 return(1);
}

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