time(&Tp);
system("whoami > tmptmp");
in1=fopen("tmptmp","r");
-if (fscanf(in1,"%s",buf1) != NULL)
+if (fscanf(in1,"%s",buf1) != EOF)
{
p1=ctime(&Tp);
p1[strlen(p1)-1]='\0';
time(&Tp);
system("whoami > tmptmp");
in1=fopen("tmptmp","r");
-if (fscanf(in1,"%s",buf1) != NULL)
+if (fscanf(in1,"%s",buf1) != EOF)
{
p1=ctime(&Tp);
p1[strlen(p1)-1]='\0';
time(&Tp);
system("whoami > tmptmp");
in1=fopen("tmptmp","r");
-if (fscanf(in1,"%s",buf1) != NULL)
+if (fscanf(in1,"%s",buf1) != EOF)
{
p1=ctime(&Tp);
p1[strlen(p1)-1]='\0';