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server.c
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server.c
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#include "server_utils.h"
#include "file_transmission.h"
void * threadFunction(void * pointer) {
psocket_plus_filename p = (psocket_plus_filename) pointer;
printf("%s\n", "Thread was created");
transmitFile(p->socketHandle, p->filename);
return 0;
}
int main(int argc, char *argv[])
{
int sockfd, newsockfd, portno, pid;
socklen_t clilen;
struct sockaddr_in serv_addr, cli_addr;
char buffer[BUFFER_LENGTH + 1];
if (argc < 3) {
sprintf(buffer, "Usage: %s port filename", argv[0]);
fail(buffer);
}
sockfd = socket(AF_INET, SOCK_STREAM, 0);
if (sockfd < 0) {
fail("Error while opening socket");
}
bzero((char *) &serv_addr, sizeof(serv_addr));
portno = atoi(argv[1]);
serv_addr.sin_family = AF_INET;
serv_addr.sin_addr.s_addr = INADDR_ANY;
serv_addr.sin_port = htons(portno);
if (bind(sockfd, (struct sockaddr *) &serv_addr, sizeof(serv_addr)) < 0) {
fail("Error while binding address to socket");
}
listen(sockfd, 5);
clilen = sizeof(cli_addr);
while (1) {
newsockfd = accept(sockfd, (struct sockaddr *) &cli_addr, &clilen);
if (newsockfd < 0) {
fail("Error while accepting connection");
}
if (SERVER_TYPE == 0) {//processes
pid = fork();
if (pid < 0) {
fail("Error while forking new process");
}
if (pid == 0) {
close(sockfd);
transmitFile(newsockfd, argv[2]);
exit(0);
} else {
close(newsockfd);
}
} else { //threads
pthread_attr_t attr;
pthread_t tid;
psocket_plus_filename p_str;
p_str = (psocket_plus_filename)malloc(sizeof(socket_plus_filename));
p_str->filename = argv[2];
p_str->socketHandle = newsockfd;
pthread_attr_init(&attr);
pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
if (pthread_create(&tid, &attr, threadFunction, p_str)) {
fail("Error while creating thread");
}
}
} /* end of while */
close(sockfd);
return 0; /* we never get here */
}