69 lines
1.4 KiB
C
69 lines
1.4 KiB
C
/*
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* Copyright 2015 (c) Anna Schumaker.
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*/
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#include <core/date.h>
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#include <core/string.h>
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#include <endian.h>
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#include <time.h>
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void date_set(struct date *date, unsigned int year,
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unsigned int month, unsigned int day)
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{
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if (date) {
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date->d_year = year;
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date->d_month = month;
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date->d_day = day;
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}
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}
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void date_today(struct date *date)
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{
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time_t rawtime = time(NULL);
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struct tm *now = localtime(&rawtime);
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date_set(date, now->tm_year + 1900, now->tm_mon + 1, now->tm_mday);
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}
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void date_read(struct file *f, struct date *date)
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{
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date->d_year = file_readu(f);
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date->d_month = file_readu(f);
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date->d_day = file_readu(f);
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}
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void date_read_stamp(struct file *f, struct date *date)
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{
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date->d_stamp = be32toh(file_readu(f));
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}
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void date_write(struct file *f, struct date *date)
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{
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file_writef(f, "%u %u %u", date->d_year, date->d_month, date->d_day);
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}
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void date_write_stamp(struct file *f, struct date *date)
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{
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file_writef(f, "%u", htobe32(date->d_stamp));
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}
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gchar *date_string(const struct date *date)
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{
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struct tm tm = {
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.tm_year = date->d_year - 1900,
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.tm_mon = date->d_month - 1,
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.tm_mday = date->d_day,
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};
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return string_tm2str(&tm);
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}
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int date_compare(const struct date *lhs, const struct date *rhs)
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{
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int ret = lhs->d_year - rhs->d_year;
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if (ret != 0)
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return ret;
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ret = lhs->d_month - rhs->d_month;
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if (ret != 0)
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return ret;
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return lhs->d_day - rhs->d_day;
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}
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