/* imap_parse_date: date is of the form: DD-MMM-YYYY HH:MM:SS +ZZzz */
time_t imap_parse_date (char *s)
{
struct tm t;
time_t tz;
t.tm_mday = (s[0] == ' ' ? s[1] - '0' : (s[0] - '0') * 10 + (s[1] - '0'));
s += 2;
if (*s != '-')
return 0;
s++;
t.tm_mon = mutt_check_month (s);
s += 3;
if (*s != '-')
return 0;
s++;
t.tm_year =
(s[0] - '0') * 1000 + (s[1] - '0') * 100 + (s[2] - '0') * 10 + (s[3] -
'0') -
1900;
s += 4;
if (*s != ' ')
return 0;
s++;
/* time */
t.tm_hour = (s[0] - '0') * 10 + (s[1] - '0');
s += 2;
if (*s != ':')
return 0;
s++;
t.tm_min = (s[0] - '0') * 10 + (s[1] - '0');
s += 2;
if (*s != ':')
return 0;
s++;
t.tm_sec = (s[0] - '0') * 10 + (s[1] - '0');
s += 2;
if (*s != ' ')
return 0;
s++;
/* timezone */
tz = ((s[1] - '0') * 10 + (s[2] - '0')) * 3600 +
((s[3] - '0') * 10 + (s[4] - '0')) * 60;
if (s[0] == '+')
tz = -tz;
return (mutt_mktime (&t, 0) + tz);
}
int is_from (const char *s, char *path, size_t pathlen, time_t *tp)
{
struct tm tm;
int yr;
if (path)
*path = 0;
if (mutt_strncmp ("From ", s, 5) != 0)
return 0;
s = next_word (s); /* skip over the From part. */
if (!*s)
return 0;
dprint (3, (debugfile, "\nis_from(): parsing: %s", s));
if (!is_day_name (s))
{
const char *p;
size_t len;
short q = 0;
for (p = s; *p && (q || !ISSPACE (*p)); p++)
{
if (*p == '\\')
{
if (*++p == '\0')
return 0;
}
else if (*p == '"')
{
q = !q;
}
}
if (q || !*p) return 0;
/* pipermail archives have the return_path obscured such as "me at mutt.org" */
if (ascii_strncasecmp(p, " at ", 4) == 0)
{
p = strchr(p + 4, ' ');
if (!p)
{
dprint (1, (debugfile, "is_from(): error parsing what appears to be a pipermail-style obscured return_path: %s\n", s));
return 0;
}
}
if (path)
{
len = (size_t) (p - s);
if (len + 1 > pathlen)
len = pathlen - 1;
memcpy (path, s, len);
path[len] = 0;
dprint (3, (debugfile, "is_from(): got return path: %s\n", path));
}
s = p + 1;
SKIPWS (s);
if (!*s)
return 0;
if (!is_day_name (s))
{
dprint(1, (debugfile, "is_from(): expected weekday, got: %s\n", s));
return 0;
}
}
s = next_word (s);
if (!*s) return 0;
/* do a quick check to make sure that this isn't really the day of the week.
* this could happen when receiving mail from a local user whose login name
* is the same as a three-letter abbreviation of the day of the week.
*/
if (is_day_name (s))
{
s = next_word (s);
if (!*s) return 0;
}
/* now we should be on the month. */
if ((tm.tm_mon = mutt_check_month (s)) < 0) return 0;
/* day */
s = next_word (s);
if (!*s) return 0;
if (sscanf (s, "%d", &tm.tm_mday) != 1) return 0;
/* time */
s = next_word (s);
if (!*s) return 0;
/* Accept either HH:MM or HH:MM:SS */
if (sscanf (s, "%d:%d:%d", &tm.tm_hour, &tm.tm_min, &tm.tm_sec) == 3);
else if (sscanf (s, "%d:%d", &tm.tm_hour, &tm.tm_min) == 2)
tm.tm_sec = 0;
else
return 0;
s = next_word (s);
if (!*s) return 0;
/* timezone? */
if (isalpha ((unsigned char) *s) || *s == '+' || *s == '-')
{
s = next_word (s);
if (!*s) return 0;
/*
* some places have two timezone fields after the time, e.g.
* From [email protected] Wed Aug 2 00:39:12 MET DST 1995
*/
if (isalpha ((unsigned char) *s))
{
s = next_word (s);
if (!*s) return 0;
}
}
/* year */
if (sscanf (s, "%d", &yr) != 1) return 0;
tm.tm_year = yr > 1900 ? yr - 1900 : (yr < 70 ? yr + 100 : yr);
dprint (3,(debugfile, "is_from(): month=%d, day=%d, hr=%d, min=%d, sec=%d, yr=%d.\n",
tm.tm_mon, tm.tm_mday, tm.tm_hour, tm.tm_min, tm.tm_sec, tm.tm_year));
tm.tm_isdst = -1;
if (tp) *tp = mutt_mktime (&tm, 0);
return 1;
}
