diff options
Diffstat (limited to 'Dev/server.c')
| -rw-r--r-- | Dev/server.c | 229 |
1 files changed, 0 insertions, 229 deletions
diff --git a/Dev/server.c b/Dev/server.c deleted file mode 100644 index 0b0a64c43..000000000 --- a/Dev/server.c +++ /dev/null @@ -1,229 +0,0 @@ -#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-#include <sys/ioctl.h>
-#include <sys/types.h>
-#include <sys/socket.h>
-#include <netinet/in.h>
-#include <netinet/tcp.h>
-#include <arpa/inet.h>
-
-#define PORT 5000
-
-#define BACKLOG 10
-
-int sockfd;
-
-fd_set read_fds, write_fds;
-
-int fdmax;
-
-struct buffers {
- int buf_cnt;
- int buf_size;
- char *buf;
-} buffers[16];
-
-int buf_size = 64;
-
-int int_socket() {
- struct sockaddr_in my_addr;
- int yes=1;
-
- FD_ZERO(&read_fds);
-
- memset(&my_addr, 0, sizeof(my_addr));
-
- if ((sockfd = socket(AF_INET, SOCK_STREAM, 0)) == -1) {
- perror("socket");
- exit(1);
- }
-
- if (setsockopt(sockfd, SOL_SOCKET, SO_REUSEADDR, &yes, sizeof(int)) == -1) {
- perror("setsockopt");
- exit(1);
- }
-
- if(setsockopt(sockfd, IPPROTO_TCP, TCP_NODELAY, &yes, sizeof(int)) < 0) {
- perror("setsockopt");
- exit(1);
- }
-
- //unsigned long one = 1;
- if(ioctl(sockfd, FIONBIO, &yes) < 0) {
- perror("ioctl");
- exit(1);
- }
-
- my_addr.sin_family = AF_INET;
- my_addr.sin_port = htons(PORT);
- my_addr.sin_addr.s_addr = INADDR_ANY;
-
- if (bind(sockfd, (struct sockaddr *)&my_addr, sizeof(struct sockaddr)) == -1) {
- perror("bind");
- exit(1);
- }
-
- if (listen(sockfd, BACKLOG) == -1) {
- perror("listen");
- exit(1);
- }
-
- FD_SET(sockfd, &read_fds);
-
- fdmax = sockfd;
- printf("xo: Server socket: %d\n",sockfd);
- return 0;
-}
-
-int connect_client() {
- int sin_size;
- int new_fd;
- struct sockaddr_in their_addr;
-
- sin_size = sizeof(struct sockaddr_in);
-
- if ((new_fd = accept(sockfd, (struct sockaddr *)&their_addr,&sin_size)) == -1) {
- perror("accept");
- } else {
- FD_SET(new_fd, &read_fds);
- if (new_fd > fdmax) {
- fdmax = new_fd;
- }
- buffers[new_fd].buf_size = buf_size;
- buffers[new_fd].buf = malloc(buf_size);
- printf("xo: new connection from %s on socket %d\n", inet_ntoa(their_addr.sin_addr), new_fd);
- }
-
- return 0;
-}
-int console_input() {
- int n;
- int arg1;
- char *arg2;
-
- printf("console in\n");
- arg2 = malloc(16);
-
- buffers[0].buf_cnt = read(0, buffers[0].buf, buffers[0].buf_size);
-
- sscanf(buffers[0].buf, "%d:%s", &arg1 , arg2 );
-
- if ( FD_ISSET( arg1, &read_fds)) {
- if ( (send(arg1, buffers[0].buf, buffers[0].buf_cnt, 0)) < 0 )
- perror("send");
- else
- buffers[0].buf_cnt = 0;
- }
-
- return 0;
-}
-
-int recieve(int rfd) {
- char buf[32];
- int num_bytes;
- if ( rfd == sockfd ) {
- connect_client();
- return 0;
- } else if ( rfd == 0 ) {
- console_input();
- return 0;
- }
- if((num_bytes = recv(rfd, buf, sizeof(buf), 0)) <= 0) {
- if(num_bytes == 0) {
- printf("xo: socket %d exited\n", rfd);
- } else {
- perror("recv");
- }
- close(rfd);
- FD_CLR(rfd, &read_fds);
- } else {
- if (( buffers[rfd].buf_cnt + num_bytes ) >= buffers[rfd].buf_size){
- buffers[rfd].buf_size = buffers[rfd].buf_size + num_bytes + 2048;
- buffers[rfd].buf = (char *) realloc(buffers[rfd].buf, buffers[rfd].buf_size);
- }
- memcpy(buffers[rfd].buf + buffers[rfd].buf_cnt, buf, num_bytes);
- buffers[rfd].buf_cnt += num_bytes ;
- }
-
- return 0;
-}
-
-int snd(int wfd) {
- int n;
-
- if ( FD_ISSET(wfd, &read_fds)) {
- if ( wfd != sockfd ) {
- if ( (n = send(wfd, buffers[wfd].buf, buffers[wfd].buf_cnt, 0)) < 0 )
- perror("send");
- else if ( buffers[wfd].buf_cnt == n ) {
- FD_CLR(wfd, &write_fds);
- buffers[wfd].buf_cnt = 0;
- }
- else {
- memcpy(buffers[wfd].buf, buffers[wfd].buf + n, buffers[wfd].buf_cnt - n);
- buffers[wfd].buf_cnt -= n;
- }
- }
- }
-
- return 0;
-}
-
-int do_sendrecv() {
- int i, j;
- struct sockaddr_in their_addr;
- fd_set rfds;
-
- FD_ZERO(&rfds);
-
- memcpy(&rfds , &read_fds , sizeof(read_fds));
-
- if ((i = select(fdmax+1, &rfds, &write_fds, NULL, NULL)) == -1) {
- perror("select");
- exit(1);
- }
-
- for(j = 0; j <= fdmax && i > 0; j++) {
- if (FD_ISSET(j, &write_fds)) {
- snd(j);
- i--;
- }
- if (FD_ISSET(j, &rfds)) {
- recieve(j);
- i--;
- }
- }
-
- return 0;
-}
-
-int do_parse() {
- int i;
-
- for ( i = 1; i <= fdmax; i++) {
- if (buffers[i].buf_cnt > 0)
- FD_SET(i, &write_fds);
- }
-
- return 0;
-}
-
-int main(void) {
-
- int_socket();
-
- buffers[0].buf_size = buf_size;
- buffers[0].buf = malloc(buf_size);
-
- FD_SET(0,&read_fds);
-
- while(1) {
- do_sendrecv();
- do_parse();
- }
-
- return 0;
-}
-
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