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cc65/testcode/lib/clock-test.c

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/* Clock test program
*
* 25-Sep-2018, chris@groessler.org
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <errno.h>
#ifdef __CC65__
#include <conio.h>
#include <cc65.h>
static void exitfn(void)
{
if (doesclrscrafterexit()) cgetc();
}
#endif /* #ifdef __CC65__ */
static void print_time(void)
{
struct tm *cur_tm;
time_t cur_time = time(NULL);
if (cur_time == -1) {
printf("time() failed: %s\n", strerror(errno));
return;
}
cur_tm = localtime(&cur_time);
printf("time: %s\n", asctime(cur_tm));
// DEBUG:
printf("mday=%d mon=%d year=%d\nhour=%d min=%d sec=%d\n", cur_tm->tm_mday, cur_tm->tm_mon, cur_tm->tm_year, cur_tm->tm_hour, cur_tm->tm_min, cur_tm->tm_sec);
}
int main(int argc, char **argv)
{
static char c;
static int s;
static struct tm cur_time;
static struct timespec new_time;
#ifdef __CC65__
atexit(exitfn);
#endif
if (argc <= 1) {
print_time();
return 0;
}
if (argc != 3 || strcasecmp(*(argv + 1), "set")) {
printf("usage: CLOCKTST [set DD-MM-YY-HH-MM-SS]\n");
return 1;
}
s = sscanf(*(argv + 2), "%d-%d-%d-%d-%d-%d", &cur_time.tm_mday, &cur_time.tm_mon, &cur_time.tm_year, &cur_time.tm_hour, &cur_time.tm_min, &cur_time.tm_sec);
if (s != 6 || cur_time.tm_year > 99 /* other input values aren't being verified... */) {
printf("invalid time/date format\n");
return 1;
}
--cur_time.tm_mon;
if (cur_time.tm_year < 79)
cur_time.tm_year += 100; /* adjust century */
memset(&new_time, 0, sizeof(new_time));
new_time.tv_sec = mktime(&cur_time);
printf("\nyou are about to set the time to\n--> %s\n\nContinue (y/n)?", ctime(&new_time.tv_sec));
while (c != 'y' && c != 'Y' && c != 'n' && c != 'N') {
#ifdef __CC65__
c = cgetc();
#else
c = getchar();
#endif
}
printf("%c\n", c);
if (c == 'n' || c == 'N') {
printf("user abort\n");
return 0;
}
s = clock_settime(CLOCK_REALTIME, &new_time);
if (s) {
printf("clock_settime() failed: %s\n", strerror(errno));
return 1;
}
printf("time set!\n");
//DEBUG test begin
print_time();
//DEBUG test end
return 0;
}
/* Local Variables: */
/* c-file-style: "cpg" */
/* c-basic-offset: 4 */
/* End: */