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Add functions to read timestamps from ISO images.

This commit is contained in:
Vreixo Formoso 2007-12-27 00:29:12 +01:00
parent aae230a321
commit dd97f67ee4
3 changed files with 60 additions and 0 deletions
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29
src/util.c
View File

@ -600,3 +600,32 @@ void iso_datetime_17(unsigned char *buf, time_t t)
buf[16] = tzoffset;
}
}
time_t iso_datetime_read_7(const uint8_t *buf)
{
struct tm tm;
tm.tm_year = buf[0];
tm.tm_mon = buf[1] - 1;
tm.tm_mday = buf[2];
tm.tm_hour = buf[3];
tm.tm_min = buf[4];
tm.tm_sec = buf[5];
return timegm(&tm) - buf[6] * 60 * 15;
}
time_t iso_datetime_read_17(const uint8_t *buf)
{
struct tm tm;
sscanf((char*)&buf[0], "%4d", &tm.tm_year);
sscanf((char*)&buf[4], "%2d", &tm.tm_mon);
sscanf((char*)&buf[6], "%2d", &tm.tm_mday);
sscanf((char*)&buf[8], "%2d", &tm.tm_hour);
sscanf((char*)&buf[10], "%2d", &tm.tm_min);
sscanf((char*)&buf[12], "%2d", &tm.tm_sec);
tm.tm_year -= 1900;
tm.tm_mon -= 1;
return timegm(&tm) - buf[16] * 60 * 15;
}

3
src/util.h
View File

@ -102,6 +102,9 @@ void iso_datetime_7(uint8_t *buf, time_t t);
/** Records the date/time into a 17 byte buffer (ECMA-119, 8.4.26.1) */
void iso_datetime_17(uint8_t *buf, time_t t);
time_t iso_datetime_read_7(const uint8_t *buf);
time_t iso_datetime_read_17(const uint8_t *buf);
typedef struct iso_rbtree IsoRBTree;
/**

28
test/test_util.c
View File

@ -102,6 +102,33 @@ static void test_iso_bb()
CU_ASSERT_EQUAL( buf[3], 0x04 );
}
static void test_iso_datetime_7()
{
uint8_t buf[7];
time_t t, t2;
struct tm tp;
strptime("01-03-1976 13:27:45", "%d-%m-%Y %T", &tp);
t = mktime(&tp);
iso_datetime_7(buf, t);
CU_ASSERT_EQUAL( buf[0], 76 ); /* year since 1900 */
CU_ASSERT_EQUAL( buf[1], 3 ); /* month */
CU_ASSERT_EQUAL( buf[2], 1 ); /* day */
CU_ASSERT_EQUAL( buf[3], 13 ); /* hour */
CU_ASSERT_EQUAL( buf[4], 27 ); /* minute */
CU_ASSERT_EQUAL( buf[5], 45 ); /* second */
/* the offset depends on current timezone and it's not easy to test */
//CU_ASSERT_EQUAL( buf[6], 4 ); /* 15 min offset */
/* check that reading returns the same time */
t2 = iso_datetime_read_7(buf);
CU_ASSERT_EQUAL(t2, t);
//TODO check with differnt timezones for reading and writting
}
static void test_iso_1_dirid()
{
CU_ASSERT_STRING_EQUAL( iso_1_dirid("dir1"), "DIR1" );
@ -238,6 +265,7 @@ void add_util_suite()
CU_add_test(pSuite, "iso_bb()", test_iso_bb);
CU_add_test(pSuite, "iso_lsb/msb()", test_iso_lsb_msb);
CU_add_test(pSuite, "iso_read_lsb/msb()", test_iso_read_lsb_msb);
CU_add_test(pSuite, "iso_datetime_7()", test_iso_datetime_7);
CU_add_test(pSuite, "iso_1_dirid()", test_iso_1_dirid);
CU_add_test(pSuite, "iso_2_dirid()", test_iso_2_dirid);
CU_add_test(pSuite, "iso_1_fileid()", test_iso_1_fileid);