char *
fvalue_to_string_repr(fvalue_t *fv, ftrepr_t rtype, char *buf)
{
g_assert(fv->ftype->val_to_string_repr);
if (!buf) {
int len;
if ((len = fvalue_string_repr_len(fv, rtype)) >= 0) {
buf = g_malloc0(len + 1);
} else {
/* the value cannot be represented in the given representation type (rtype) */
return NULL;
}
}
fv->ftype->val_to_string_repr(fv, rtype, buf);
return buf;
}
char *
fvalue_to_string_repr(wmem_allocator_t *scope, fvalue_t *fv, ftrepr_t rtype, int field_display)
{
char *buf;
int len;
if (fv->ftype->val_to_string_repr == NULL) {
/* no value-to-string-representation function, so the value cannot be represented */
return NULL;
}
if ((len = fvalue_string_repr_len(fv, rtype, field_display)) >= 0) {
buf = (char *)wmem_alloc0(scope, len + 1);
} else {
/* the value cannot be represented in the given representation type (rtype) */
return NULL;
}
fv->ftype->val_to_string_repr(fv, rtype, field_display, buf, (unsigned int)len+1);
return buf;
}
static gboolean print_field_value(field_info *finfo, int cmd_line_index)
{
header_field_info *hfinfo;
static char *fs_buf = NULL;
char *fs_ptr = fs_buf;
static GString *label_s = NULL;
int fs_buf_len = FIELD_STR_INIT_LEN, fs_len;
guint i;
string_fmt_t *sf;
guint32 uvalue;
gint32 svalue;
const true_false_string *tfstring = &tfs_true_false;
hfinfo = finfo->hfinfo;
if (!fs_buf) {
fs_buf = g_malloc(fs_buf_len + 1);
fs_ptr = fs_buf;
}
if (!label_s) {
label_s = g_string_new("");
}
if(finfo->value.ftype->val_to_string_repr)
{
/*
* this field has an associated value,
* e.g: ip.hdr_len
*/
fs_len = fvalue_string_repr_len(&finfo->value, FTREPR_DFILTER);
while (fs_buf_len < fs_len) {
fs_buf_len *= 2;
fs_buf = g_realloc(fs_buf, fs_buf_len + 1);
fs_ptr = fs_buf;
}
fvalue_to_string_repr(&finfo->value,
FTREPR_DFILTER,
fs_buf);
/* String types are quoted. Remove them. */
if ((finfo->value.ftype->ftype == FT_STRING || finfo->value.ftype->ftype == FT_STRINGZ) && fs_len > 2) {
fs_buf[fs_len - 1] = '\0';
fs_ptr++;
}
}
if (string_fmts->len > 0 && finfo->hfinfo->strings) {
g_string_truncate(label_s, 0);
for (i = 0; i < string_fmts->len; i++) {
sf = g_ptr_array_index(string_fmts, i);
if (sf->plain) {
g_string_append(label_s, sf->plain);
} else {
switch (sf->format) {
case SF_NAME:
g_string_append(label_s, hfinfo->name);
break;
case SF_NUMVAL:
g_string_append(label_s, fs_ptr);
break;
case SF_STRVAL:
switch(hfinfo->type) {
case FT_BOOLEAN:
uvalue = fvalue_get_uinteger(&finfo->value);
tfstring = (const struct true_false_string*) hfinfo->strings;
g_string_append(label_s, uvalue ? tfstring->true_string : tfstring->false_string);
break;
case FT_INT8:
case FT_INT16:
case FT_INT24:
case FT_INT32:
DISSECTOR_ASSERT(!hfinfo->bitmask);
svalue = fvalue_get_sinteger(&finfo->value);
if (hfinfo->display & BASE_RANGE_STRING) {
g_string_append(label_s, rval_to_str(svalue, hfinfo->strings, "Unknown"));
} else {
g_string_append(label_s, val_to_str(svalue, cVALS(hfinfo->strings), "Unknown"));
}
case FT_UINT8:
case FT_UINT16:
case FT_UINT24:
case FT_UINT32:
uvalue = fvalue_get_uinteger(&finfo->value);
if (!hfinfo->bitmask && hfinfo->display & BASE_RANGE_STRING) {
g_string_append(label_s, rval_to_str(uvalue, hfinfo->strings, "Unknown"));
} else {
g_string_append(label_s, val_to_str(uvalue, cVALS(hfinfo->strings), "Unknown"));
}
break;
default:
break;
}
break;
default:
break;
}
}
}
printf(" %u=\"%s\"", cmd_line_index, label_s->str);
return TRUE;
}
if(finfo->value.ftype->val_to_string_repr)
{
printf(" %u=\"%s\"", cmd_line_index, fs_ptr);
return TRUE;
}
/*
* This field doesn't have an associated value,
* e.g. http
* We return n.a.
*/
printf(" %u=\"n.a.\"", cmd_line_index);
return TRUE;
}
