The util_later_than function compares the date specified in a time structure against a date specified in a string. If the date in the string is later than or equal to the one in the time structure, the function returns 1. Use this function to handle RFC 822, RFC 850, and ctime formats.
int util_later_than(struct tm *lms, char *ims);
1 if the date represented by ims is the same as or later than that represented by the lms, or 0 if the date represented by ims is earlier than that represented by the lms.
tm *lms is the time structure containing a date.
char *ims is the string containing a date.