Hi All
I working in my project and I have same problem it to complicated to explain , but I will explain it in small Example :-
I use 2 computer run linux Red Hat 9 connected by using cross over link (client/server)
I need tow transfer huge data by using socket interface(with c) and this is my programs


/* server.c */

#include<sys/types.h>
#include<sys/socket.h>
#include<netinet/in.h>
#include<unistd.h>
#include<stdlib.h>
#include<stdio.h>
#include<time.h>
#include<sys/time.h>
#include<stddef.h>
#include<math.h>
//#define RAW 50
//#define COL 50
main(int argc,char *argv[])
{
int cont,create_socket,new_socket,addrlen;
//int bufsize ;
int *buffer ;
buffer= calloc(380000000,1);
struct sockaddr_in address;
time_t s,f;
double t1,t2,temp;
struct timeval tp;
//int bufsize ;
//int *buffer = malloc(120000);

int x=0,asd;
printf("\x1B[2J");
if ((create_socket = socket(AF_INET,SOCK_STREAM,0)) > 0)
printf("The socket was created\n");
address.sin_family = AF_INET;
address.sin_addr.s_addr = INADDR_ANY;
address.sin_port = htons(15500);
if (bind(create_socket,(struct sockaddr *)&address,sizeof(address)) == 0)
printf("Binding Socket\n");
listen(create_socket,6);
addrlen = sizeof(struct sockaddr_in);
new_socket = accept(create_socket,(struct sockaddr *)&address,&addrlen);
if (new_socket > 0){
printf("The Client %s is connected...\n",inet_ntoa(address.sin_addr));
for(cont=1;cont<5000;cont++)
printf("\x7");
}
// if()

int i,g=0,j,u,t=0,y,d=0,q,k;

/* for(i=0;i<bufsize;i++)
buffer[i]=0;
*/
// for(i=0;i<(RAW/5);i++)
for(j=0;j<50000;j++)
{
buffer[j]=t;
t++;
}
//printf("the result is as follows : \n\n");
send(new_socket,buffer,380000000,0);

/*for(i=(RAW/2);i<RAW;i++)
for(j=0;j<COL;j++)
{ //printf("the result is as follows : \n\n");
while(d<(RAW/2))
{ //printf("the result is as follows 10: \n\n");
for(y=0;y<COL;y++)
{
buffer[t]=a[d][y];
//printf("buffer[%d]=%d\t",t,buffer[t]);
t++;
}

d++;
}
if(d==(RAW/2))
{
for(q=0;q<RAW;q++)
for(y=0;y<COL;y++)
{
buffer[t]=b[q][y];
printf("buffer[%d]=%d\t",t,buffer[t]);

t++;
}
asd=gettimeofday(&tp, NULL);
t1=(double)tp.tv_sec+(1.e-6)*tp.tv_usec;
time(&s);
// printf("the result is as follows : \n\n");
send(new_socket,buffer,bufsize,0);
d++;
}

for(k=0;k<RAW;k++)
c[i][j]+=a[i][k]*b[k][j];

}

t=0;
recv(new_socket,buffer,bufsize,0);
for(i=0;i<(RAW/2);i++)
for( j=0;j<COL;j++)
{
c[i][j]=buffer[t];
t++;
}
for(i=0;i<RAW;i++)
for(j=0;j<COL;j++)
//printf("c[%d][%d]=%d\t",i,j,c[i][j]);


time(&f);
asd=gettimeofday(&tp, NULL);
t2=(double)tp.tv_sec+(1.e-6)*tp.tv_usec;
temp=t2-t1;

/*printf("\n\n%s\n", ctime(&s));
printf("%s\n", ctime(&f));
printf("%f in sec , %f in sec:usec\n", difftime(f, s),temp);
*/
free(buffer);
close(new_socket);
close(create_socket);

/* client.c */

#include<sys/socket.h>
#include<sys/types.h>
#include<netinet/in.h>
#include<unistd.h>
#include<stdlib.h>
#include<stdio.h>
//#define RAW 50
//#define COL 50
main(int argc,char *argv[])
{
int create_socket;
//int bufsize;
int *buffer;
buffer= calloc(380000000,1);
struct sockaddr_in address;
// BUF_MEM_grow(int *buffer,int 2000 );
printf("\x1B[2J");
if ((create_socket = socket(AF_INET,SOCK_STREAM,0)) > 0)
printf("The Socket was created\n");
address.sin_family = AF_INET;
address.sin_port = htons(15500);
inet_pton(AF_INET,argv[1],&address.sin_addr);

if (connect(create_socket,(struct sockaddr *)&address,sizeof(address)) == 0)
printf("The connection was accepted with the server %s...\n",inet_ntoa(address.sin_addr));
int x=0,d,i;
//a[RAW][COL],b[RAW][COL],c[RAW][COL],i=0,j,t=0,k,q,w;
/* for(i=0;i<RAW;i++)
for(j=0;j<COL;j++)
{
a[i][j]=0;
b[i][j]=-1;
c[i][j]=0;
} */
// for(i=0;i<100;i++)
//buffer[i]=9;



//printf("the result is as follows 1: \n\n");
recv(create_socket,buffer,380000000,0);
/* for(i=0;i<50000;i++)
printf("the buffer[%d]=%d\n",i,buffer[i]);
printf("the buffer[44290]=%d the buffer[43999]=%d\n",buffer[44290],buffer[443999]);*/
for(i=100;i<50000;i++)
if(buffer[i]==0)
printf("the buffer error[%d]=%d,buffer[36890]=%d\n\n",i,buffer[i],buffer[36890]);
printf("the buffer{36895}=%d,the buffer{36899}=%d,the buffer{36900}=%d",buffer[36895],buffer[36899],buffer[36900]);

/* for(i=0;i<bufsize;i++)
//for(j=0;j<COL;j++)
printf("buffer[%d]=%d\n",i,buffer[i]);
*/
//for(i=0;i<(RAW/2);i++)
/* for(i=0;i<(RAW/2);i++)
for(j=0;j<COL;j++)
{
printf("buffer[%d]=%d\t",t,buffer[t]);
a[i][j]=buffer[t];
t++;
} */

/* for(i=0;i<RAW;i++)
for(j=0;j<COL;j++)
{
b[i][j]=buffer[t];
printf("b[%d][%d]=%d\t",i,j,b[i][j]);

t++;
}*/

/* t=0;
for(i=0;i<(RAW/2);i++)
for(j=0;j<COL;j++)
{
for(k=0;k<RAW;k++)
{
c[i][j]+=a[i][k]*b[k][j];
}
// printf("c[%d][%d]=%d\n",i,j,c[i][j]);
buffer[t]=c[i][j];
t++;
} */
//send(create_socket,buffer,15000,0);
// printf("The message has been sent to the server.\n");

//}while (strcmp(buffer,"/q"));
free(buffer);
close(create_socket);
}











My problem in the data was receive at client (recv function) the out put of last part of them is zero value
If any one has had a similar experience with this please tell me in detail




Than you

First, thats a huge amount of data to be received from one call, 365 MBs. I don't even have enough resources to attempt the program. Second how much data is gotten from recv,, it returns the read bytes or less than 0 on error and set errno. Try and break the data up to see if in fact the data is correct beofre sent. Finally, thats a crappy title to a forum. I search for answers a lot and cant find what Im looking for even though its been posted because of crappy titles.