1 files changed, 128 insertions, 0 deletions
diff --git a/shared/hook.c b/shared/hook.c
new file mode 100644
index 0000000..fd6ce2b
--- /dev/null
+++ b/shared/hook.c
@@ -0,0 +1,128 @@
+/*
+ * som_net / simple library example (c) by jak1
+ *
+ * som_net / simple library example is licensed under a
+ * Creative Commons Attribution-ShareAlike 4.0 International License.
+ *
+ * You should have received a copy of the license along with this
+ * work. If not, see <http://creativecommons.org/licenses/by-sa/4.0/>.
+ * Footer
+*/
+
+#include "hook.h"
+
+void chat(int is_client, int sockfd)
+{
+    char buff[MAX_BUFFER_SIZE];
+    int n;
+    if (is_client){
+        for (;;) {
+            bzero(buff, sizeof(buff));
+            printf("Enter the string : ");
+            n = 0;
+            while ((buff[n++] = getchar()) != '\n')
+                ;
+            write(sockfd, buff, sizeof(buff));
+            bzero(buff, sizeof(buff));
+            read(sockfd, buff, sizeof(buff));
+            printf("From Server : %s", buff);
+            if ((strncmp(buff, "exit", 4)) == 0) {
+                printf("Client Exit...\n");
+                break;
+            }
+        }
+    }
+    else
+    {
+        for (;;) {
+            bzero(buff, MAX_BUFFER_SIZE);
+            read(sockfd, buff, sizeof(buff));
+            printf("From client: %s\t To client : ", buff);
+            bzero(buff, MAX_BUFFER_SIZE);
+            n = 0;
+            while ((buff[n++] = getchar()) != '\n')
+                ;
+            write(sockfd, buff, sizeof(buff));
+            if (strncmp("exit", buff, 4) == 0) {
+                printf("Server Exit...\n");
+                break;
+            }
+        }
+    }
+}
+
+int start_chat( int is_client )
+{
+    int sockfd, connfd;
+    socklen_t len;
+    struct sockaddr_in servaddr, cli;
+    sockfd = socket(AF_INET, SOCK_STREAM, 0);
+    if (is_client)
+    {
+        if (sockfd == -1) {
+            printf("socket creation failed...\n");
+            exit(0);
+        }
+        else
+            printf("Socket successfully created..\n");
+        bzero(&servaddr, sizeof(servaddr));
+    
+        servaddr.sin_family = AF_INET;
+        servaddr.sin_addr.s_addr = inet_addr("127.0.0.1");
+        servaddr.sin_port = htons(PORT);
+
+        if (connect(sockfd, (SA*)&servaddr, sizeof(servaddr))
+            != 0) {
+            printf("connection with the server failed...\n");
+            exit(0);
+        }
+        else
+            printf("connected to the server..\n");
+    
+        chat(is_client, sockfd);
+    
+        close(sockfd);
+    }
+    else
+    {
+        if (sockfd == -1) {
+            printf("socket creation failed...\n");
+            exit(0);
+        }
+        else
+            printf("Socket successfully created..\n");
+        bzero(&servaddr, sizeof(servaddr));
+    
+        servaddr.sin_family = AF_INET;
+        servaddr.sin_addr.s_addr = htonl(INADDR_ANY);
+        servaddr.sin_port = htons(PORT);
+    
+        if ((bind(sockfd, (SA*)&servaddr, sizeof(servaddr))) != 0) {
+            printf("socket bind failed...\n");
+            exit(0);
+        }
+        else
+            printf("Socket successfully binded..\n");
+    
+        if ((listen(sockfd, 5)) != 0) {
+            printf("Listen failed...\n");
+            exit(0);
+        }
+        else
+            printf("Server listening..\n");
+        len = sizeof(cli);
+    
+        connfd = accept(sockfd, (SA*)&cli, &len);
+        if (connfd < 0) {
+            printf("server accept failed...\n");
+            exit(0);
+        }
+        else
+            printf("server accept the client...\n");
+    
+        chat(is_client, connfd);
+    
+        close(sockfd);
+    }
+    return 0;
+}