diff --git a/client.c b/client.c
index 1c5b842..e223ceb 100644
--- a/client.c
+++ b/client.c
@@ -133,6 +133,7 @@ int recvFile(int sock, const char * filename,size_t file_size){
         DisplayProgressBar100Percent(file_size);
 END:
     free(buf);
+    close(fd);
     return return_value;
 }
 
@@ -198,6 +199,9 @@ static inline struct timespec timespec_sub(struct timespec a,struct timespec b){
     return ret;
 }
 
+static char filename_buf[1024];
+static bool stdinisatty;
+
 int main(int argc, const char *argv[]){
     struct sockaddr_in addr;
     const char * filename;
@@ -207,15 +211,15 @@ int main(int argc, const char *argv[]){
     int sock, err;
     int retval = 0;
     init_bench_data();
+    stdinisatty = isatty(STDIN_FILENO);
 
-
-    if (argc < 4){
+    if (argc < (stdinisatty ? 4 : 3)){
         fprintf(stderr,"USAUE: %s SERVERNAME PORT [Option]... [FILENAME]...\n",argv[0]);
         return 1;
     }
     server_name = argv[1];
     server_port = atoi(argv[2]);
-    for(;;){
+    while(arg_filename_start < argc){
         if (strcmp("-b",argv[arg_filename_start])==0
         ||strcmp("--benchmark",argv[arg_filename_start])==0){
             arg_filename_start++;
@@ -227,7 +231,6 @@ int main(int argc, const char *argv[]){
         }
         else break;
     }
-    
     if (server_port == 0){
         fprintf(stderr,"port invalid\n");
         return 1;
@@ -251,8 +254,19 @@ int main(int argc, const char *argv[]){
     if (bench.benchmode){
         clock_gettime(bench.clock_id,&bench.begin);
     }
-    while (arg_filename_start < argc){
-        filename = argv[arg_filename_start++];
+    for (;;){
+        if (stdinisatty){
+            if (arg_filename_start >= argc) break;
+            filename = argv[arg_filename_start++];
+        }
+        else{
+            //unsafe.
+            int t = fscanf(stdin,"%s",filename_buf);
+            if (t != 1) break;
+            filename = filename_buf;
+        }
+        fprintf(stdout,"request %s\n",filename);
+        
         sock = socket(AF_INET,SOCK_STREAM,0);
         if(sock < 0){
             perror("sock create fail");