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server2.c
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server2.c
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#include<stdio.h>
#include<stdlib.h>
#include<string.h>
#include<unistd.h>
#include<sys/types.h>
#include<sys/socket.h>
#include<netinet/in.h>
#include<netdb.h>
void error(const char *str)
{
perror(str);
exit(1);
}
int main(int argc,char *argv[])
{
int sockfd,newsockfd,portno,n,clilen;
char buffer[256];
if(argc<2)
{
printf("Port number not provided\n");
exit(1);
}
struct sockaddr_in serv_addr,cli_addr;
//socklen_t clilen;
sockfd=socket(AF_INET, SOCK_STREAM, 0);
if(sockfd < 0)
{
error("Error Opening Socket");
exit(1);
}
bzero((char *) &serv_addr,sizeof(serv_addr));
//portno= 5001;
portno=atoi(argv[1]);
serv_addr.sin_family = AF_INET;
serv_addr.sin_addr.s_addr=INADDR_ANY;
serv_addr.sin_port = htons(portno);
//binding
if( bind(sockfd, (struct sockaddr *) &serv_addr ,sizeof(serv_addr)) <0)
{
error("Binding Failed");
exit(1);
}
//listen
listen(sockfd,5);
clilen= sizeof(cli_addr);
newsockfd=accept(sockfd, (struct sockaddr *) &cli_addr, &clilen);
if(newsockfd < 0)
{
error("Error on accept");
exit(1);
}
FILE *fp;
int words,cnt=0;
fp=fopen("RollS.txt","w");
read(newsockfd ,&words,sizeof(int));
while(cnt!=words)
{
read(newsockfd, buffer ,256);
fprintf(fp, "%s" ,buffer);
cnt++;
}
printf("server done\n");
fclose(fp);
fp=fopen("RollS.txt","r");
fgets(buffer, sizeof(buffer), fp);
printf("%s",buffer);
fclose(fp);
write(newsockfd,buffer,strlen(buffer));
close(newsockfd);
close(sockfd);
return 0;
}