| Algorithm Steps:
Server:
Step 1: start
Step 2: create a socket with address family AF_INET, type SOCK_STREAM and default protocol.
Step 3: Initialize the socket and set its attributes assign any port number as desired.
Step 4: Bind the server to the socket using bind() function.
Step 5: Establish the listen queue using the listen function.
Step 6: wait for client program on request, establish a connection using accept function.
Step 7: Read the message from the client using recv() function. display the
Step 8: Terminate the connection.
Client:
Step 1: Start.
Step 2: Create a socket with address family AF_INET type SOCK_STERAM and default protocol.
Step 3: Initialize the socket and set it attributes set the required port number.
Step 4: Connect to the server using connect() function to initialize the request.
Step 5: Send the message using send function.
Step 6: stop.
C Program To Generate SIGPIPE Error with Socket
//Server Program:
#include
#include
#include
#include
#include
#include
#include
/*---------------------------------------------------------------------*/
/*--- sig_pipe - SIGPIPE ---*/
/*---------------------------------------------------------------------*/
void sig_pipe(int signum)
{
printf("got it!\n");
signal(SIGPIPE, sig_pipe);
}
/*---------------------------------------------------------------------*/
/*--- main - allow client to connect and then terminate. ---*/
/*---------------------------------------------------------------------*/
main()
{ struct sockaddr_in addr;
int sd, byte_count, addr_size;
signal(SIGPIPE, sig_pipe);
if ( (sd = socket(PF_INET, SOCK_STREAM, 0)) < 0 )
{
perror("Socket");
abort();
}
addr.sin_family = AF_INET;
addr.sin_port = htons(9999);
addr.sin_addr.s_addr = INADDR_ANY;
if ( bind(sd, (struct sockaddr*)&addr, sizeof(addr)) != 0 )
{
perror("Bind");
abort();
}
if ( listen(sd, 20) != 0 )
{
perror("Listen");
abort();
}
while (1)
{ int client;
char buffer[1024];
addr_size = sizeof(addr);
client = accept(sd, (struct sockaddr*)&addr, &addr_size);
printf("Connected: %s:%d\n", inet_ntoa(addr.sin_addr), ntohs(addr.sin_port));
recv(client, buffer, 4, 0);
close(client);
}
close(sd);
}
//Client Program:
#include
#include
#include
#include
#include
#include
#include
/*---------------------------------------------------------------------*/
/*--- sig_pipe - SIGPIPE ---*/
/*---------------------------------------------------------------------*/
void sig_pipe(int signum)
{
printf("got it!\n");
signal(SIGPIPE, sig_pipe);
}
/*---------------------------------------------------------------------*/
/*--- main - force a SIGPIPE error by connecting to an echo server ---*/
/*--- and sending data while the server just terminates the ---*/
/*--- connection. ---*/
/*---------------------------------------------------------------------*/
main()
{ struct sockaddr_in addr;
int sd, byte_count, addr_size;
signal(SIGPIPE, sig_pipe);
if ( (sd = socket(PF_INET, SOCK_STREAM, 0)) < 0 )
{
perror("Socket");
abort();
}
addr.sin_family = AF_INET;
addr.sin_port = htons(9999);
if ( inet_aton("127.0.0.1", &addr.sin_addr) == 0 )
{
perror("127.0.0.1");
abort();
}
if ( connect(sd, (struct sockaddr*)&addr, sizeof(addr)) != 0 )
{
perror("Bind");
abort();
}
if ( send(sd, "this is a test", 17, 0) < 0 )
perror("send");
sleep(1);
if ( send(sd, "this is a test", 17, 0) < 0 )
perror("send");
close(sd);
}
SAMPLE INPUT OUTPUT:
$gcc clientexample.c -o client.exe
$client.exe
send:Connection reset by peer
$gcc serevrexample.c -o server.exe
$server.exe
Connected: 127.0.0.1:2324
$gcc clientexample.c -o client.exe
$client.exe
send:Connection reset by peer
$gcc serevrexample.c -o server.exe
$server.exe
Connected: 127.0.0.1:2636
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