repack rep

Practice/lecture23.10/server.c

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+#include <stdio.h>
+#include <stdlib.h>
+#include <errno.h>
+#include <error.h>
+#include <string.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <sys/un.h>
+#include <unistd.h>
+
+#define SOCK_PATH "tpf_unix_sock.server"
+
+int main(void)
+{
+    int server_sock, rc;
+    socklen_t len;
+    int bytes_rec = 0;
+    struct sockaddr_un server_sockaddr, peer_sock;
+    char buf[256];
+    memset(&server_sockaddr, 0, sizeof(struct sockaddr_un));
+    memset(buf, 0, 256);
+
+    server_sock = socket(AF_UNIX, SOCK_DGRAM, 0);
+    if (server_sock == -1)
+    {
+        perror("socket");
+        exit(1);
+    }
+
+    server_sockaddr.sun_family = AF_UNIX;
+    strcpy(server_sockaddr.sun_path, SOCK_PATH);
+    len = sizeof(server_sockaddr);
+    unlink(SOCK_PATH);
+    rc = bind(server_sock, (struct sockaddr *)&server_sockaddr, len);
+    if (rc == -1)
+    {
+        perror("bind");
+        close(server_sock);
+        exit(1);
+    }
+
+    printf("waiting to recvfrom...\n");
+    bytes_rec = recvfrom(server_sock, buf, 256, 0, (struct sockaddr *)&peer_sock, &len);
+    if (bytes_rec == -1)
+    {
+        perror("recv");
+        close(server_sock);
+        exit(1);
+    }
+    else
+    {
+        printf("DATA RECEIVED = %s\n", buf);
+    }
+
+    close(server_sock);
+
+    return 0;
+}