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Backport of Creation-Date parameter for unattended key generation.

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This commit is contained in:
Werner Koch 2009-05-05 11:44:56 +00:00
parent a4fd67937c
commit 631a0de335
5 changed files with 185 additions and 51 deletions
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51
util/miscutil.c
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@ -152,6 +152,57 @@ isotimestamp (u32 stamp)
return buffer;
}
/* Scan am ISO timestamp and return an Epoch based timestamp. The only
supported format is "yyyymmddThhmmss" delimited by white space, nul, a
colon or a comma. Returns 0 for an invalid string. */
u32
isotime2seconds (const char *string)
{
const char *s;
int year, month, day, hour, minu, sec;
struct tm tmbuf;
int i;
time_t result;
if (!*string)
return 0;
for (s=string, i=0; i < 8; i++, s++)
if (!digitp (s))
return 0;
if (*s != 'T')
return 0;
for (s++, i=9; i < 15; i++, s++)
if (!digitp (s))
return 0;
if ( !(!*s || (isascii (*s) && isspace(*s)) || *s == ':' || *s == ','))
return 0; /* Wrong delimiter. */
year = atoi_4 (string);
month = atoi_2 (string + 4);
day = atoi_2 (string + 6);
hour = atoi_2 (string + 9);
minu = atoi_2 (string + 11);
sec = atoi_2 (string + 13);
/* Basic checks. */
if (year < 1970 || month < 1 || month > 12 || day < 1 || day > 31
|| hour > 23 || minu > 59 || sec > 61 )
return 0;
memset (&tmbuf, 0, sizeof tmbuf);
tmbuf.tm_sec = sec;
tmbuf.tm_min = minu;
tmbuf.tm_hour = hour;
tmbuf.tm_mday = day;
tmbuf.tm_mon = month-1;
tmbuf.tm_year = year - 1900;
tmbuf.tm_isdst = -1;
result = timegm (&tmbuf);
return (result == (time_t)(-1))? 0 : (u32)result;
}
/****************
* Note: this function returns local time
*/