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/* value_string.c
* Routines for value_strings
*
* $Id$
*
* Wireshark - Network traffic analyzer
* By Gerald Combs <gerald@wireshark.org>
* Copyright 1998 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 <stdio.h>
#include "to_str.h"
#include "emem.h"
#include "value_string.h"
#include <string.h>
/* Tries to match val against each element in the value_string array vs.
Returns the associated string ptr on a match.
Formats val with fmt, and returns the resulting string, on failure. */
const gchar*
val_to_str(guint32 val, const value_string *vs, const char *fmt) {
const gchar *ret;
g_assert(fmt != NULL);
ret = match_strval(val, vs);
if (ret != NULL)
return ret;
return ep_strdup_printf(fmt, val);
}
/* Tries to match val against each element in the value_string array vs.
Returns the associated string ptr on a match.
Returns 'unknown_str', on failure. */
const gchar*
val_to_str_const(guint32 val, const value_string *vs, const char *unknown_str) {
const gchar *ret;
g_assert(unknown_str != NULL);
ret = match_strval(val, vs);
if (ret != NULL)
return ret;
return unknown_str;
}
/* Tries to match val against each element in the value_string array vs.
Returns the associated string ptr, and sets "*idx" to the index in
that table, on a match, and returns NULL, and sets "*idx" to -1,
on failure. */
const gchar*
match_strval_idx(guint32 val, const value_string *vs, gint *idx) {
gint i = 0;
if(vs) {
while (vs[i].strptr) {
if (vs[i].value == val) {
*idx = i;
return(vs[i].strptr);
}
i++;
}
}
*idx = -1;
return NULL;
}
/* Like match_strval_idx(), but doesn't return the index. */
const gchar*
match_strval(guint32 val, const value_string *vs) {
gint ignore_me;
return match_strval_idx(val, vs, &ignore_me);
}
/* Tries to match val against each element in the value_string array vs.
Returns the associated string ptr on a match.
Formats val with fmt, and returns the resulting string, on failure. */
const gchar*
str_to_str(const gchar *val, const string_string *vs, const char *fmt) {
const gchar *ret;
g_assert(fmt != NULL);
ret = match_strstr(val, vs);
if (ret != NULL)
return ret;
return ep_strdup_printf(fmt, val);
}
/* Tries to match val against each element in the value_string array vs.
Returns the associated string ptr, and sets "*idx" to the index in
that table, on a match, and returns NULL, and sets "*idx" to -1,
on failure. */
const gchar*
match_strstr_idx(const gchar *val, const string_string *vs, gint *idx) {
gint i = 0;
if(vs) {
while (vs[i].strptr) {
if (!strcmp(vs[i].value,val)) {
*idx = i;
return(vs[i].strptr);
}
i++;
}
}
*idx = -1;
return NULL;
}
/* Like match_strval_idx(), but doesn't return the index. */
const gchar*
match_strstr(const gchar *val, const string_string *vs) {
gint ignore_me;
return match_strstr_idx(val, vs, &ignore_me);
}
/* Generate a string describing an enumerated bitfield (an N-bit field
with various specific values having particular names). */
const char *
decode_enumerated_bitfield(guint32 val, guint32 mask, int width,
const value_string *tab, const char *fmt)
{
static char buf[1025];
char *p;
p = decode_bitfield_value(buf, val, mask, width);
g_snprintf(p, (gulong) (1024-(p-buf)), fmt, val_to_str(val & mask, tab, "Unknown"));
return buf;
}
/* Generate a string describing an enumerated bitfield (an N-bit field
with various specific values having particular names). */
const char *
decode_enumerated_bitfield_shifted(guint32 val, guint32 mask, int width,
const value_string *tab, const char *fmt)
{
static char buf[1025];
char *p;
int shift = 0;
/* Compute the number of bits we have to shift the bitfield right
to extract its value. */
while ((mask & (1<<shift)) == 0)
shift++;
p = decode_bitfield_value(buf, val, mask, width);
g_snprintf(p, (gulong) (1024-(p-buf)), fmt, val_to_str((val & mask) >> shift, tab, "Unknown"));
return buf;
}
/* FF: ranges aware versions */
/* Tries to match val against each range in the range_string array rs.
Returns the associated string ptr on a match.
Formats val with fmt, and returns the resulting string, on failure. */
const gchar *rval_to_str(guint32 val, const range_string *rs, const char *fmt)
{
const gchar *ret = NULL;
g_assert(fmt != NULL);
ret = match_strrval(val, rs);
if(ret != NULL)
return ret;
return ep_strdup_printf(fmt, val);
}
/* Tries to match val against each range in the range_string array rs.
Returns the associated string ptr, and sets "*idx" to the index in
that table, on a match, and returns NULL, and sets "*idx" to -1,
on failure. */
const gchar *match_strrval_idx(guint32 val, const range_string *rs, gint *idx)
{
gint i = 0;
if(rs) {
while(rs[i].strptr) {
if( (val >= rs[i].value_min) && (val <= rs[i].value_max) ) {
*idx = i;
return (rs[i].strptr);
}
i++;
}
}
*idx = -1;
return NULL;
}
/* Like match_strrval_idx(), but doesn't return the index. */
const gchar *match_strrval(guint32 val, const range_string *rs)
{
gint ignore_me = 0;
return match_strrval_idx(val, rs, &ignore_me);
}
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