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efm - fix exif data parse - do by hand because sscanf is stupid 

:)
This commit is contained in:
Carsten Haitzler 2021-07-14 17:35:47 +01:00
parent 571a188eb0
commit ce933dd5c1
1 changed files with 59 additions and 3 deletions
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62
src/bin/e_fm_prop.c
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@ -138,6 +138,64 @@ _exif_entry_find(ExifData *ed, ExifTag tag)
#endif
/**--CREATE--**/
#ifdef HAVE_LIBEXIF
static inline int
_parse_exif_digit(char c)
{
if ((c >= '0') && (c <= '9')) return (c - '0');
return -1;
}
static inline int
_parse_digits(const char **s, char end)
{
int vnow = 0, v;
for (;;)
{
v = _parse_exif_digit(**s);
if (v < 0)
{
if (**s != end) return -1;
(*s)++;
return vnow;
}
else vnow = (vnow * 10) + v;
if (!(**s)) return -1;
(*s)++;
}
return vnow;
}
static int
_parse_exif_time(const char *str, struct tm *tm)
{
const char *s;
int v;
s = str;
v = _parse_digits(&s, ':');
if (v < 0) return -1;
tm->tm_year = v;
v = _parse_digits(&s, ':');
if (v < 0) return -1;
tm->tm_mon = v;
v = _parse_digits(&s, ' ');
if (v < 0) return -1;
tm->tm_mday = v;
v = _parse_digits(&s, ':');
if (v < 0) return -1;
tm->tm_hour = v;
v = _parse_digits(&s, ':');
if (v < 0) return -1;
tm->tm_min = v;
v = _parse_digits(&s, 0);
if (v < 0) return -1;
tm->tm_sec = v;
return 0;
}
#endif
static void
_fill_data(E_Config_Dialog_Data *cfdata, E_Fm2_Icon *ic)
{
@ -171,9 +229,7 @@ _fill_data(E_Config_Dialog_Data *cfdata, E_Fm2_Icon *ic)
memset(&tm, 0, sizeof(tm));
tm.tm_isdst = -1;
// "YYYY:MM:DD HH:MM:SS"
if (sscanf(tbuf, "%i:%i:%i %i:%i:%i",
&tm.tm_year, &tm.tm_mon, &tm.tm_mday,
&tm.tm_hour, &tm.tm_min, &tm.tm_sec) == 6)
if (_parse_exif_time(tbuf, &tm) == 0)
{
tm.tm_year -= 1900;
tm.tm_mon -= 1;