/*
* filename : counter.c
* date : 09-12-2011
*/
#include<stdio.h>
#include <string.h>
#include <stdlib.h>
char default_msg[] = "counter will expire in following seconds";
int main(int argc, char* argv[])
{
char *msg = default_msg;
int delay = 0, hour, min, sec, days;
int i;
days = hour = min = sec = 0;
switch (argc)
{
case 3:
msg = argv[2];
case 2:
for (i=0; i < strlen(argv[1]); i++)
{
if (!isdigit(argv[1][i]))
{
printf("invalid digit '%c' at position %d in argument\n", argv[1][i], i);
return -1;
}
}
delay = atoi(argv[1]);
break;
default:
printf("invalid number of arguments\n"
"usage: %s [\"message\"]\n", argv[0]);
fflush(stdout);
return -1;
}
* filename : counter.c
* date : 09-12-2011
*/
#include
#include <string.h>
#include <stdlib.h>
char default_msg[] = "counter will expire in following seconds";
int main(int argc, char* argv[])
{
char *msg = default_msg;
int delay = 0, hour, min, sec, days;
int i;
days = hour = min = sec = 0;
switch (argc)
{
case 3:
msg = argv[2];
case 2:
delay = atoi(argv[1]);
break;
default:
printf("invalid number of arguments\n"
"usage: %s
fflush(stdout);
return -1;
}
/*
* calculate exact time in hh:mm:ss entered for delay-sec
*/
sec = delay % 60;
min = (delay / 60) % 60;
hour = (delay / 3600) % 24;
days = delay / (3600 * 24);
printf("MSG: %s - DAYS: %d, %d:%d:%d\n", msg, days, hour, min, sec);
for (i=delay; i >= 0 ; i--)
{
printf("\rcounter: %d", i);
fflush(stdout); sleep(1);
}
printf("\n");
return 0;
}
/*
* compile with gcc
* gcc counter.c -o COUNTER
* ./COUNTER 15
* ./COUNTER 97405
*/