added linux server

Author: windjacker

linuxServer.c

@@ -0,0 +1,41 @@
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <unistd.h>
+#include <stdio.h>
+#include <netinet/in.h>
+#include <stdlib.h>
+#include <string.h>
+
+
+int main() {
+    struct sockaddr_in addr;
+    char buffer[1024];
+    ssize_t recsize;
+    socklen_t fromlen;
+
+    int sock = socket(AF_INET, SOCK_DGRAM, 0);
+
+    memset(&addr, 0, sizeof addr);
+    addr.sin_family = AF_INET;
+    addr.sin_port = htons(1100);
+    addr.sin_addr.s_addr = htonl(INADDR_ANY);
+
+    fromlen = sizeof addr;
+
+    if (bind(sock, (struct sockaddr *)&addr, sizeof addr) == -1) {
+        close(sock);
+        exit(EXIT_FAILURE);
+    }
+
+    printf("Server running ...\n");
+
+    for (;;) {
+        recsize = recvfrom(sock, (void *)buffer, sizeof buffer, 0, (struct sockaddr *)&addr, &fromlen);
+        printf("recsize: %d\n", (int)recsize);
+        sleep(1);
+        printf("datagra: %.*s\n", (int)recsize, buffer);
+    }
+
+    close(sock);
+}
+