+ //printf("(10)");
+
+
+ //printf("(11)");
+ if (fcntl(fd_in, F_SETFL, flag2 & ~O_NONBLOCK) == -1) {
+ printf("fcntl set failed\n");
+ exit(-1);
+ }
+
+ //printf("(11)");
+ if ((flag2 = fcntl(fd_in, F_GETFL)) == -1) {
+ printf("fcntl get failed\n");
+ exit(-1);
+ }
+ //printf("(12)");