forked from osmocom/wireshark
![Guy Harris](/assets/img/avatar_default.png)
microseconds. Fix some "signed vs. unsigned" comparison warnings. svn path=/trunk/; revision=3934
299 lines
5.9 KiB
C
299 lines
5.9 KiB
C
/*
|
|
* $Id: ftype-time.c,v 1.11 2001/09/14 07:10:13 guy Exp $
|
|
*
|
|
* Ethereal - Network traffic analyzer
|
|
* By Gerald Combs <gerald@ethereal.com>
|
|
* Copyright 2001 Gerald Combs
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License
|
|
* as published by the Free Software Foundation; either version 2
|
|
* of the License, or (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
|
|
*/
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
#include "config.h"
|
|
#endif
|
|
|
|
#include <ctype.h>
|
|
#include <string.h>
|
|
|
|
/*
|
|
* Just make sure we include the prototype for strptime as well
|
|
* (needed for glibc 2.2)
|
|
*/
|
|
#ifndef __USE_XOPEN
|
|
#define __USE_XOPEN
|
|
#endif
|
|
|
|
#include <time.h>
|
|
|
|
#include <ftypes-int.h>
|
|
|
|
#ifdef NEED_STRPTIME_H
|
|
#include "strptime.h"
|
|
#endif
|
|
|
|
static gboolean
|
|
cmp_eq(fvalue_t *a, fvalue_t *b)
|
|
{
|
|
return ((a->value.time.secs) ==(b->value.time.secs))
|
|
&&((a->value.time.nsecs)==(b->value.time.nsecs));
|
|
}
|
|
static gboolean
|
|
cmp_ne(fvalue_t *a, fvalue_t *b)
|
|
{
|
|
return (a->value.time.secs !=b->value.time.secs)
|
|
||(a->value.time.nsecs!=b->value.time.nsecs);
|
|
}
|
|
static gboolean
|
|
cmp_gt(fvalue_t *a, fvalue_t *b)
|
|
{
|
|
if (a->value.time.secs > b->value.time.secs) {
|
|
return TRUE;
|
|
}
|
|
if (a->value.time.secs < b->value.time.secs) {
|
|
return FALSE;
|
|
}
|
|
|
|
return a->value.time.nsecs > b->value.time.nsecs;
|
|
}
|
|
static gboolean
|
|
cmp_ge(fvalue_t *a, fvalue_t *b)
|
|
{
|
|
if (a->value.time.secs > b->value.time.secs) {
|
|
return TRUE;
|
|
}
|
|
if (a->value.time.secs < b->value.time.secs) {
|
|
return FALSE;
|
|
}
|
|
|
|
return a->value.time.nsecs >= b->value.time.nsecs;
|
|
}
|
|
static gboolean
|
|
cmp_lt(fvalue_t *a, fvalue_t *b)
|
|
{
|
|
if (a->value.time.secs < b->value.time.secs) {
|
|
return TRUE;
|
|
}
|
|
if (a->value.time.secs > b->value.time.secs) {
|
|
return FALSE;
|
|
}
|
|
|
|
return a->value.time.nsecs < b->value.time.nsecs;
|
|
}
|
|
static gboolean
|
|
cmp_le(fvalue_t *a, fvalue_t *b)
|
|
{
|
|
if (a->value.time.secs < b->value.time.secs) {
|
|
return TRUE;
|
|
}
|
|
if (a->value.time.secs > b->value.time.secs) {
|
|
return FALSE;
|
|
}
|
|
|
|
return a->value.time.nsecs <= b->value.time.nsecs;
|
|
}
|
|
|
|
|
|
static gboolean
|
|
relative_val_from_string(fvalue_t *fv, char *s, LogFunc log)
|
|
{
|
|
char *curptr, *endptr;
|
|
|
|
curptr = s;
|
|
|
|
/*
|
|
* If it doesn't begin with ".", it should contain a seconds
|
|
* value.
|
|
*/
|
|
if (*curptr != '.') {
|
|
/*
|
|
* Get the seconds value.
|
|
*/
|
|
fv->value.time.secs = strtoul(curptr, &endptr, 10);
|
|
if (endptr == curptr || (*endptr != '\0' && *endptr != '.'))
|
|
goto fail;
|
|
curptr = endptr;
|
|
if (*curptr == '.')
|
|
curptr++; /* skip the decimal point */
|
|
} else {
|
|
/*
|
|
* No seconds value - it's 0.
|
|
*/
|
|
fv->value.time.secs = 0;
|
|
curptr++; /* skip the decimal point */
|
|
}
|
|
|
|
/*
|
|
* If there's more stuff left in the string, it should be the
|
|
* nanoseconds value.
|
|
*/
|
|
if (*endptr != '\0') {
|
|
/*
|
|
* Get the nanoseconds value.
|
|
*/
|
|
fv->value.time.nsecs = strtoul(curptr, &endptr, 10);
|
|
if (endptr == curptr || *endptr != '\0')
|
|
goto fail;
|
|
} else {
|
|
/*
|
|
* No nanoseconds value - it's 0.
|
|
*/
|
|
fv->value.time.nsecs = 0;
|
|
}
|
|
|
|
/*
|
|
* XXX - what about negative values?
|
|
*/
|
|
return TRUE;
|
|
|
|
fail:
|
|
if (log != NULL)
|
|
log("\"%s\" is not a valid time.", s);
|
|
return FALSE;
|
|
}
|
|
|
|
|
|
static gboolean
|
|
absolute_val_from_string(fvalue_t *fv, char *s, LogFunc log)
|
|
{
|
|
struct tm tm;
|
|
char *curptr, *endptr;
|
|
|
|
curptr = strptime(s,"%b %d, %Y %H:%M:%S", &tm);
|
|
if (curptr == NULL)
|
|
goto fail;
|
|
tm.tm_isdst = -1; /* let the computer figure out if it's DST */
|
|
fv->value.time.secs = mktime(&tm);
|
|
if (*curptr != '\0') {
|
|
/*
|
|
* Something came after the seconds field; it must be
|
|
* a nanoseconds field.
|
|
*/
|
|
if (*curptr != '.')
|
|
goto fail; /* it's not */
|
|
curptr++; /* skip the "." */
|
|
if (!isdigit((unsigned char)*curptr))
|
|
goto fail; /* not a digit, so not valid */
|
|
fv->value.time.nsecs = strtoul(curptr, &endptr, 10);
|
|
if (endptr == curptr || *endptr != '\0')
|
|
goto fail;
|
|
} else {
|
|
/*
|
|
* No nanoseconds value - it's 0.
|
|
*/
|
|
fv->value.time.nsecs = 0;
|
|
}
|
|
|
|
if (fv->value.time.secs == -1) {
|
|
/*
|
|
* XXX - should we supply an error message that mentions
|
|
* that the time specified might be syntactically valid
|
|
* but might not actually have occurred, e.g. a time in
|
|
* the non-existent time range after the clocks are
|
|
* set forward during daylight savings time (or possibly
|
|
* that it's in the time range after the clocks are set
|
|
* backward, so that there are two different times that
|
|
* it could be)?
|
|
*/
|
|
goto fail;
|
|
}
|
|
|
|
return TRUE;
|
|
|
|
fail:
|
|
if (log != NULL)
|
|
log("\"%s\" is not a valid absolute time. Example: \"Nov 12, 1999 08:55:44.123\"",
|
|
s);
|
|
return FALSE;
|
|
}
|
|
|
|
static void
|
|
time_fvalue_new(fvalue_t *fv)
|
|
{
|
|
fv->value.time.secs = 0;
|
|
fv->value.time.nsecs = 0;
|
|
}
|
|
|
|
static void
|
|
time_fvalue_set(fvalue_t *fv, gpointer value, gboolean already_copied)
|
|
{
|
|
g_assert(!already_copied);
|
|
memcpy(&(fv->value.time), value, sizeof(nstime_t));
|
|
}
|
|
|
|
static gpointer
|
|
value_get(fvalue_t *fv)
|
|
{
|
|
return &(fv->value.time);
|
|
}
|
|
|
|
void
|
|
ftype_register_time(void)
|
|
{
|
|
|
|
static ftype_t abstime_type = {
|
|
"FT_ABSOLUTE_TIME",
|
|
"date/time",
|
|
0,
|
|
time_fvalue_new,
|
|
NULL,
|
|
absolute_val_from_string,
|
|
|
|
time_fvalue_set,
|
|
NULL,
|
|
NULL,
|
|
|
|
value_get,
|
|
NULL,
|
|
NULL,
|
|
|
|
cmp_eq,
|
|
cmp_ne,
|
|
cmp_gt,
|
|
cmp_ge,
|
|
cmp_lt,
|
|
cmp_le,
|
|
NULL,
|
|
NULL
|
|
};
|
|
static ftype_t reltime_type = {
|
|
"FT_RELATIVE_TIME",
|
|
"time offset",
|
|
0,
|
|
time_fvalue_new,
|
|
NULL,
|
|
relative_val_from_string,
|
|
|
|
time_fvalue_set,
|
|
NULL,
|
|
NULL,
|
|
|
|
value_get,
|
|
NULL,
|
|
NULL,
|
|
|
|
cmp_eq,
|
|
cmp_ne,
|
|
cmp_gt,
|
|
cmp_ge,
|
|
cmp_lt,
|
|
cmp_le,
|
|
NULL,
|
|
NULL
|
|
};
|
|
|
|
ftype_register(FT_ABSOLUTE_TIME, &abstime_type);
|
|
ftype_register(FT_RELATIVE_TIME, &reltime_type);
|
|
}
|