61867d0b2f
appropriate for particular FT_ types. This lets us do some more type checking and lets us use const pointers when appropriate. Constify a bunch of stuff, and don't cast away constness. svn path=/trunk/; revision=54811
176 lines
4.6 KiB
C
176 lines
4.6 KiB
C
/*
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* $Id$
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*
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* Wireshark - Network traffic analyzer
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* By Gerald Combs <gerald@wireshark.org>
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* Copyright 2001 Gerald Combs
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include "config.h"
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#include <string.h>
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#include <stdlib.h>
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#include <ctype.h>
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#include <ftypes-int.h>
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#include <epan/guid-utils.h>
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#include <epan/to_str.h>
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static void
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guid_fvalue_set_guid(fvalue_t *fv, const e_guid_t *value)
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{
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fv->value.guid = *value;
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}
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static gpointer
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value_get(fvalue_t *fv)
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{
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return &(fv->value.guid);
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}
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static gboolean
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get_guid(const char *s, e_guid_t *guid)
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{
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size_t i, n;
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const char *p;
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char digits[9];
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static const char fmt[] = "XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX";
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n = strlen(s);
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if (n != strlen(fmt))
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return FALSE;
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for (i=0; i<n; i++) {
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if (fmt[i] == 'X') {
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if (!isxdigit((guchar)s[i]))
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return FALSE;
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} else {
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if (s[i] != fmt[i])
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return FALSE;
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}
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}
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p = s;
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strncpy(digits, p, 8);
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digits[8] = '\0';
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guid->data1 = (guint32)strtoul(digits, NULL, 16);
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p += 9;
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strncpy(digits, p, 4);
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digits[4] = '\0';
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guid->data2 = (guint16)strtoul(digits, NULL, 16);
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p += 5;
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strncpy(digits, p, 4);
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digits[4] = '\0';
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guid->data3 = (guint16)strtoul(digits, NULL, 16);
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p += 5;
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for (i=0; i < sizeof(guid->data4); i++) {
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if (*p == '-') p++;
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digits[0] = *(p++);
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digits[1] = *(p++);
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digits[2] = '\0';
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guid->data4[i] = (guint8)strtoul(digits, NULL, 16);
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}
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return TRUE;
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}
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static gboolean
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guid_from_unparsed(fvalue_t *fv, const char *s, gboolean allow_partial_value _U_, LogFunc logfunc)
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{
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e_guid_t guid;
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if (!get_guid(s, &guid)) {
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logfunc("\"%s\" is not a valid GUID.", s);
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return FALSE;
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}
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fv->value.guid = guid;
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return TRUE;
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}
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static int
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guid_repr_len(fvalue_t *fv _U_, ftrepr_t rtype _U_)
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{
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return GUID_STR_LEN;
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}
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static void
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guid_to_repr(fvalue_t *fv, ftrepr_t rtype _U_, char *buf)
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{
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guid_to_str_buf(&fv->value.guid, buf, GUID_STR_LEN);
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}
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static gboolean
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cmp_eq(const fvalue_t *a, const fvalue_t *b)
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{
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return memcmp(&a->value.guid, &b->value.guid, sizeof(e_guid_t)) == 0;
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}
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static gboolean
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cmp_ne(const fvalue_t *a, const fvalue_t *b)
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{
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return memcmp(&a->value.guid, &b->value.guid, sizeof(e_guid_t)) != 0;
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}
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void
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ftype_register_guid(void)
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{
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static ftype_t guid_type = {
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FT_GUID, /* ftype */
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"FT_GUID", /* name */
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"Globally Unique Identifier", /* pretty_name */
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GUID_LEN, /* wire_size */
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NULL, /* new_value */
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NULL, /* free_value */
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guid_from_unparsed, /* val_from_unparsed */
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NULL, /* val_from_string */
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guid_to_repr, /* val_to_string_repr */
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guid_repr_len, /* len_string_repr */
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NULL, /* set_value_byte_array */
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NULL, /* set_value_bytes */
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guid_fvalue_set_guid, /* set_value_guid */
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NULL, /* set_value_time */
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NULL, /* set_value_string */
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NULL, /* set_value_tvbuff */
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NULL, /* set_value_uinteger */
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NULL, /* set_value_sinteger */
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NULL, /* set_value_integer64 */
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NULL, /* set_value_floating */
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value_get, /* get_value */
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NULL, /* get_value_uinteger */
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NULL, /* get_value_sinteger */
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NULL, /* get_value_integer64 */
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NULL, /* get_value_floating */
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cmp_eq,
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cmp_ne,
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NULL,
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NULL,
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NULL,
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NULL,
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NULL,
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NULL,
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NULL, /* cmp_matches */
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NULL,
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NULL,
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};
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ftype_register(FT_GUID, &guid_type);
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}
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