Implementato correttamente la select

test/test3.c

@@ -0,0 +1,18 @@
+#include <unistd.h>
+#include <stdio.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <ctype.h>
+#include <stdlib.h>
+
+
+int main (int index, char** in_data){
+     
+fprintf(stdout, "%d\n",fileno(stdout));
+fprintf(stdout, "%d\n",fileno(stdin));
+fprintf(stdout, "%d\n",fileno(stderr));
+     
+     
+     return 0;
+}

test/test3.c~

@@ -0,0 +1,24 @@
+#include <unistd.h>
+#include <stdio.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <ctype.h>
+#include <stdlib.h>
+
+
+int main (int index, char** in_data){
+     
+char a [100];
+char b;
+char c [100];
+char d [100];
+sprintf(d,"eeee");
+sprintf(a,"alfred       ");
+sscanf (a,"%s%s",c,d);
+fprintf(stdout,"%s\n",c);
+fprintf(stdout,"%s\n",d);
+     
+     
+     return 0;
+}