Thread: Odd Segmentation Fault

I wrote a program that includes the following code:

Code:

struct time     /* Structure for time variables */
{
        int month;
        int day;
        int year;

        int hr;
        int min;
};

...

        struct time time1,time2;

        printf("Start moment:  ");
        fgets(line,sizeof(line),stdin);
        sscanf
        (
                line,
                "%d/%d/%d %d:%d",
                &time1.month, &time1.day, &time1.year, &time1.hr, &time1.min
        );

The compiler (gcc) doesn't issue any warnings.

As soon as I enter the start moment, the program terminates, like so:

Code:

greg@snapdragon:~/Programs/Oua/mindiff$ ./a.out
Start moment:  8/12/1982 9:01
Segmentation fault

Interestingly, NO such segmentation fault occurs in the following cases:

Code:

struct date {
        int month;
        int day;
        int year;
};

...

        printf("Date 1:  ");
        fgets(line,sizeof(line),stdin);
        sscanf(line,"%d/%d/%d",&date1.month,&date1.day,&date1.year);

There is also no problem at all with this code:

Code:

struct time {
        int hr;
        int min;
};

...

        printf("Time 1:  ");
        fgets(line,sizeof(line),stdin);
        sscanf(line,"%d:%d",&time1.hr,&time1.min);

I thought the problem might be the space, and tried

Code:

        printf("Start moment:  ");
        fgets(line,sizeof(line),stdin);
        sscanf
        (
                line,
                "%d/%d/%d,%d:%d",
                &time1.month, &time1.day, &time1.year, &time1.hr, &time1.min
        );

(with a comma instead of a space in the input), but that didn't help; still got a segmentation fault!

I'm completely baffled. Does anybody know what is causing the problem?