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wireshark/extcap_parser.c

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/* extcap_parser.c
*
* Routines for extcap external capture
* Copyright 2013, Mike Ryan <mikeryan@lacklustre.net>
*
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include <config.h>
#include <stdio.h>
#include <glib.h>
#include <string.h>
#include "extcap_parser.h"
void extcap_printf_complex(extcap_complex *comp) {
gchar *ret = extcap_get_complex_as_string(comp);
printf("%s", ret);
g_free(ret);
}
gchar *extcap_get_complex_as_string(extcap_complex *comp) {
/* Pick an arbitrary size that should be big enough */
gchar *ret = g_new(gchar, 32);
if (comp == NULL) {
g_snprintf(ret, 32, "(null)");
return ret;
}
switch (comp->complex_type) {
case EXTCAP_ARG_INTEGER:
g_snprintf(ret, 32, "%d", comp->complex_value.int_value);
break;
case EXTCAP_ARG_UNSIGNED:
g_snprintf(ret, 32, "%u", comp->complex_value.uint_value);
break;
case EXTCAP_ARG_LONG:
g_snprintf(ret, 32, "%ld", comp->complex_value.long_value);
break;
case EXTCAP_ARG_DOUBLE:
g_snprintf(ret, 32, "%f", comp->complex_value.double_value);
break;
case EXTCAP_ARG_BOOLEAN:
g_snprintf(ret, 32, "%s",
comp->complex_value.bool_value ? "TRUE" : "FALSE");
break;
case EXTCAP_ARG_STRING:
case EXTCAP_ARG_FILESELECT:
g_free(ret);
ret = g_strdup(comp->complex_value.string_value);
break;
default:
/* Nulling out the return string */
g_snprintf(ret, 32, " ");
break;
}
return ret;
}
extcap_complex *extcap_parse_complex(extcap_arg_type complex_type,
const gchar *data) {
extcap_complex *rc = g_new(extcap_complex, 1);
gboolean success = FALSE;
long double exp_f;
switch (complex_type) {
case EXTCAP_ARG_INTEGER:
if (sscanf(data, "%Lf", &exp_f) == 1) {
rc->complex_value.int_value = (int) exp_f;
success = TRUE;
break;
}
break;
case EXTCAP_ARG_UNSIGNED:
if (sscanf(data, "%Lf", &exp_f) == 1) {
rc->complex_value.uint_value = (unsigned int) exp_f;
success = TRUE;
break;
}
break;
case EXTCAP_ARG_LONG:
if (sscanf(data, "%Lf", &exp_f) == 1) {
rc->complex_value.long_value = (long) exp_f;
success = TRUE;
break;
}
break;
case EXTCAP_ARG_DOUBLE:
if (sscanf(data, "%Lf", &exp_f) == 1) {
rc->complex_value.double_value = (double) exp_f;
success = TRUE;
break;
}
break;
case EXTCAP_ARG_BOOLEAN:
case EXTCAP_ARG_BOOLFLAG:
if (data[0] == 't' || data[0] == 'T' || data[0] == '1') {
rc->complex_value.bool_value = 1;
} else {
rc->complex_value.bool_value = 0;
}
success = TRUE;
break;
case EXTCAP_ARG_STRING:
case EXTCAP_ARG_FILESELECT:
rc->complex_value.string_value = g_strdup(data);
success = TRUE;
break;
default:
break;
}
if (!success) {
g_free(rc);
return NULL ;
}
rc->complex_type = complex_type;
rc->value_filled = TRUE;
return rc;
}
gboolean extcap_compare_is_default(extcap_arg *element, extcap_complex *test) {
gboolean result = FALSE;
if (element->default_complex == NULL)
return result;
switch (element->arg_type) {
case EXTCAP_ARG_INTEGER:
if (extcap_complex_get_int(test)
== extcap_complex_get_int(element->default_complex))
result = TRUE;
break;
case EXTCAP_ARG_UNSIGNED:
if (extcap_complex_get_uint(test)
== extcap_complex_get_uint(element->default_complex))
result = TRUE;
break;
case EXTCAP_ARG_LONG:
if (extcap_complex_get_long(test)
== extcap_complex_get_long(element->default_complex))
result = TRUE;
break;
case EXTCAP_ARG_DOUBLE:
if (extcap_complex_get_double(test)
== extcap_complex_get_double(element->default_complex))
result = TRUE;
break;
case EXTCAP_ARG_BOOLEAN:
case EXTCAP_ARG_BOOLFLAG:
if (extcap_complex_get_bool(test)
== extcap_complex_get_bool(element->default_complex))
result = TRUE;
break;
case EXTCAP_ARG_STRING:
if (strcmp(extcap_complex_get_string(test),
extcap_complex_get_string(element->default_complex)) == 0)
result = TRUE;
break;
default:
break;
}
return result;
}
void extcap_free_complex(extcap_complex *comp) {
if (comp->complex_type == EXTCAP_ARG_STRING
|| comp->complex_type == EXTCAP_ARG_FILESELECT)
g_free(comp->complex_value.string_value);
g_free(comp);
}
int extcap_complex_get_int(extcap_complex *comp) {
if ( comp == NULL )
return (int)0;
return comp->complex_value.int_value;
}
unsigned int extcap_complex_get_uint(extcap_complex *comp) {
if ( comp == NULL )
return (unsigned int)0;
return comp->complex_value.uint_value;
}
long extcap_complex_get_long(extcap_complex *comp) {
if ( comp == NULL )
return (long)0;
return comp->complex_value.long_value;
}
double extcap_complex_get_double(extcap_complex *comp) {
if ( comp == NULL )
return (double)0;
return comp->complex_value.double_value;
}
gboolean extcap_complex_get_bool(extcap_complex *comp) {
if ( comp == NULL )
return FALSE;
return comp->complex_value.bool_value;
}
gchar *extcap_complex_get_string(extcap_complex *comp) {
return comp->complex_value.string_value;
}
void extcap_free_tokenized_param(extcap_token_param *v) {
if (v == NULL)
return;
if (v->arg != NULL)
g_free(v->arg);
if (v->value != NULL)
g_free(v->value);
g_free(v);
}
void extcap_free_tokenized_sentence(extcap_token_sentence *s) {
extcap_token_param *tv;
if (s == NULL)
return;
if (s->sentence != NULL)
g_free(s->sentence);
while (s->param_list != NULL ) {
tv = s->param_list;
s->param_list = tv->next_token;
extcap_free_tokenized_param(tv);
}
}
void extcap_free_tokenized_sentence_list(extcap_token_sentence *f) {
extcap_token_sentence *t;
while (f != NULL ) {
t = f->next_sentence;
extcap_free_tokenized_sentence(f);
f = t;
}
}
extcap_token_sentence *extcap_tokenize_sentence(const gchar *s) {
gchar *b, *e, *eq;
extcap_token_param *tv = NULL;
extcap_token_sentence *rs = g_new(extcap_token_sentence, 1);
rs->sentence = NULL;
rs->next_sentence = NULL;
rs->param_list = NULL;
if ((b = g_strstr_len(s, -1, " ")) == NULL) {
extcap_free_tokenized_sentence(rs);
return NULL ;
}
rs->sentence = g_strndup(s, b - s);
if ((b = g_strstr_len(s, -1, "{")) == NULL) {
/* printf("debug - tokenizer - sentence with no values\n"); */
extcap_free_tokenized_sentence(rs);
return NULL ;
}
while (b != NULL ) {
if ((e = g_strstr_len(b, -1, "}")) == NULL) {
/* printf("debug - tokenizer - invalid, missing }\n"); */
extcap_free_tokenized_sentence(rs);
return NULL ;
}
if ((eq = g_strstr_len(b, -1, "=")) == NULL) {
/* printf("debug - tokenizer - invalid, missing =\n"); */
extcap_free_tokenized_sentence(rs);
return NULL ;
}
b++;
e--;
if (b >= eq || e <= eq) {
/* printf("debug - tokenizer - invalid, missing arg or value in {}\n"); */
extcap_free_tokenized_sentence(rs);
return NULL ;
}
tv = g_new(extcap_token_param, 1);
tv->arg = g_strndup(b, eq - b);
tv->value = g_strndup(eq + 1, e - eq);
if (g_ascii_strcasecmp(tv->arg, "number") == 0) {
tv->param_type = EXTCAP_PARAM_ARGNUM;
} else if (g_ascii_strcasecmp(tv->arg, "call") == 0) {
tv->param_type = EXTCAP_PARAM_CALL;
} else if (g_ascii_strcasecmp(tv->arg, "display") == 0) {
tv->param_type = EXTCAP_PARAM_DISPLAY;
} else if (g_ascii_strcasecmp(tv->arg, "type") == 0) {
tv->param_type = EXTCAP_PARAM_TYPE;
} else if (g_ascii_strcasecmp(tv->arg, "arg") == 0) {
tv->param_type = EXTCAP_PARAM_ARG;
} else if (g_ascii_strcasecmp(tv->arg, "default") == 0) {
tv->param_type = EXTCAP_PARAM_DEFAULT;
} else if (g_ascii_strcasecmp(tv->arg, "value") == 0) {
tv->param_type = EXTCAP_PARAM_VALUE;
} else if (g_ascii_strcasecmp(tv->arg, "range") == 0) {
tv->param_type = EXTCAP_PARAM_RANGE;
} else if (g_ascii_strcasecmp(tv->arg, "tooltip") == 0) {
tv->param_type = EXTCAP_PARAM_TOOLTIP;
} else if (g_ascii_strcasecmp(tv->arg, "mustexist") == 0) {
tv->param_type = EXTCAP_PARAM_FILE_MUSTEXIST;
} else if (g_ascii_strcasecmp(tv->arg, "name") == 0) {
tv->param_type = EXTCAP_PARAM_NAME;
} else if (g_ascii_strcasecmp(tv->arg, "enabled") == 0) {
tv->param_type = EXTCAP_PARAM_ENABLED;
} else if (g_ascii_strcasecmp(tv->arg, "parent") == 0) {
tv->param_type = EXTCAP_PARAM_PARENT;
} else {
tv->param_type = EXTCAP_PARAM_UNKNOWN;
}
tv->next_token = rs->param_list;
rs->param_list = tv;
/* printf("debug - tokenizer - got '%s' = '%s'\n", tv->arg, tv->value); */
b = e + 1;
if ((size_t) (b - s) > strlen(s))
break;
b = g_strstr_len(b, -1, "{");
}
return rs;
}
extcap_token_sentence *extcap_tokenize_sentences(const gchar *s) {
extcap_token_sentence *first = NULL, *cur = NULL, *last = NULL;
gchar **list, **list_iter;
list_iter = list = g_strsplit(s, "\n", 0);
while (*list_iter != NULL ) {
cur = extcap_tokenize_sentence(*list_iter);
if (cur != NULL) {
if (first == NULL) {
first = cur;
last = cur;
} else {
last->next_sentence = cur;
last = cur;
}
}
list_iter++;
}
g_strfreev(list);
return first;
}
extcap_token_param *extcap_find_param_by_type(extcap_token_param *first,
extcap_param_type t) {
while (first != NULL ) {
if (first->param_type == t) {
return first;
}
first = first->next_token;
}
return NULL ;
}
void extcap_free_value(extcap_value *v) {
if (v == NULL)
return;
if (v->call != NULL)
g_free(v->call);
if (v->display != NULL)
g_free(v->display);
g_free(v);
}
extcap_interface *extcap_new_interface(void) {
extcap_interface *r = g_new(extcap_interface, 1);
r->call = r->display = NULL;
r->next_interface = NULL;
return r;
}
void extcap_free_interface(extcap_interface *i) {
if (i == NULL)
return;
if (i->call != NULL)
g_free(i->call);
if (i->display != NULL)
g_free(i->display);
}
extcap_dlt *extcap_new_dlt(void) {
extcap_dlt *r = g_new(extcap_dlt, 1);
r->number = -1;
r->name = r->display = NULL;
r->next_dlt = NULL;
return r;
}
void extcap_free_dlt(extcap_dlt *d) {
if (d == NULL)
return;
if (d->name != NULL)
g_free(d->name);
if (d->display != NULL)
g_free(d->display);
}
extcap_arg *extcap_new_arg(void) {
extcap_arg *r = g_new(extcap_arg, 1);
r->call = NULL;
r->display = NULL;
r->tooltip = NULL;
r->arg_type = EXTCAP_ARG_UNKNOWN;
r->range_start = NULL;
r->range_end = NULL;
r->default_complex = NULL;
r->fileexists = FALSE;
r->values = NULL;
/*r->next_arg = NULL; */
return r;
}
static void extcap_free_valuelist(gpointer data, gpointer user_data _U_) {
extcap_free_value((extcap_value *) data);
}
void extcap_free_arg(extcap_arg *a) {
if (a == NULL)
return;
if (a->call != NULL)
g_free(a->call);
if (a->display != NULL)
g_free(a->display);
if (a->tooltip != NULL)
g_free(a->tooltip);
if (a->range_start != NULL)
extcap_free_complex(a->range_start);
if (a->range_end != NULL)
extcap_free_complex(a->range_end);
if (a->default_complex != NULL)
extcap_free_complex(a->default_complex);
g_list_foreach(a->values, (GFunc) extcap_free_valuelist, NULL);
}
static void extcap_free_arg_list_cb(gpointer listentry, gpointer data _U_) {
if (listentry != NULL)
extcap_free_arg((extcap_arg *) listentry);
}
void extcap_free_arg_list(GList *a) {
g_list_foreach(a, extcap_free_arg_list_cb, NULL);
g_list_free(a);
}
static gint glist_find_numbered_arg(gconstpointer listelem, gconstpointer needle) {
if (((const extcap_arg *) listelem)->arg_num == *((const int*) needle))
return 0;
return 1;
}
extcap_arg *extcap_parse_arg_sentence(GList * args, extcap_token_sentence *s) {
extcap_token_param *v = NULL;
extcap_arg *target_arg = NULL;
extcap_value *value = NULL;
GList * entry = NULL;
int tint;
extcap_sentence_type sent = EXTCAP_SENTENCE_UNKNOWN;
if (s == NULL)
return target_arg;
if (g_ascii_strcasecmp(s->sentence, "arg") == 0) {
sent = EXTCAP_SENTENCE_ARG;
/* printf("ARG sentence\n"); */
} else if (g_ascii_strcasecmp(s->sentence, "value") == 0) {
sent = EXTCAP_SENTENCE_VALUE;
/* printf("VALUE sentence\n"); */
}
if (sent == EXTCAP_SENTENCE_ARG) {
target_arg = extcap_new_arg();
if ((v = extcap_find_param_by_type(s->param_list, EXTCAP_PARAM_ARGNUM))
== NULL) {
extcap_free_arg(target_arg);
return NULL ;
}
if (sscanf(v->value, "%d", &(target_arg->arg_num)) != 1) {
extcap_free_arg(target_arg);
return NULL ;
}
if ((v = extcap_find_param_by_type(s->param_list, EXTCAP_PARAM_CALL))
== NULL) {
extcap_free_arg(target_arg);
return NULL ;
}
target_arg->call = g_strdup(v->value);
/* No value only parameters allowed */
if (strlen(target_arg->call) == 0) {
extcap_free_arg(target_arg);
return NULL ;
}
if ((v = extcap_find_param_by_type(s->param_list, EXTCAP_PARAM_DISPLAY))
== NULL) {
extcap_free_arg(target_arg);
return NULL ;
}
target_arg->display = g_strdup(v->value);
if ((v = extcap_find_param_by_type(s->param_list, EXTCAP_PARAM_TOOLTIP))
!= NULL) {
target_arg->tooltip = g_strdup(v->value);
}
if ((v = extcap_find_param_by_type(s->param_list, EXTCAP_PARAM_FILE_MUSTEXIST))
!= NULL) {
target_arg->fileexists = (v->value[0] == 't' || v->value[0] == 'T');
}
if ((v = extcap_find_param_by_type(s->param_list, EXTCAP_PARAM_TYPE))
== NULL) {
/* printf("no type in ARG sentence\n"); */
extcap_free_arg(target_arg);
return NULL ;
}
if (g_ascii_strcasecmp(v->value, "integer") == 0) {
target_arg->arg_type = EXTCAP_ARG_INTEGER;
} else if (g_ascii_strcasecmp(v->value, "unsigned") == 0) {
target_arg->arg_type = EXTCAP_ARG_UNSIGNED;
} else if (g_ascii_strcasecmp(v->value, "long") == 0) {
target_arg->arg_type = EXTCAP_ARG_LONG;
} else if (g_ascii_strcasecmp(v->value, "double") == 0) {
target_arg->arg_type = EXTCAP_ARG_DOUBLE;
} else if (g_ascii_strcasecmp(v->value, "boolean") == 0) {
target_arg->arg_type = EXTCAP_ARG_BOOLEAN;
} else if (g_ascii_strcasecmp(v->value, "boolflag") == 0) {
target_arg->arg_type = EXTCAP_ARG_BOOLFLAG;
} else if (g_ascii_strcasecmp(v->value, "menu") == 0) {
target_arg->arg_type = EXTCAP_ARG_MENU;
} else if (g_ascii_strcasecmp(v->value, "selector") == 0) {
target_arg->arg_type = EXTCAP_ARG_SELECTOR;
} else if (g_ascii_strcasecmp(v->value, "radio") == 0) {
target_arg->arg_type = EXTCAP_ARG_RADIO;
} else if (g_ascii_strcasecmp(v->value, "string") == 0) {
target_arg->arg_type = EXTCAP_ARG_STRING;
} else if (g_ascii_strcasecmp(v->value, "fileselect") == 0) {
target_arg->arg_type = EXTCAP_ARG_FILESELECT;
} else if (g_ascii_strcasecmp(v->value, "multicheck") == 0) {
target_arg->arg_type = EXTCAP_ARG_MULTICHECK;
} else {
printf("invalid type %s in ARG sentence\n", v->value);
extcap_free_arg(target_arg);
return NULL ;
}
if ((v = extcap_find_param_by_type(s->param_list, EXTCAP_PARAM_RANGE))
!= NULL) {
gchar *cp = g_strstr_len(v->value, -1, ",");
if (cp == NULL) {
printf("invalid range, expected value,value got %s\n",
v->value);
extcap_free_arg(target_arg);
return NULL ;
}
if ((target_arg->range_start = extcap_parse_complex(
target_arg->arg_type, v->value)) == NULL) {
printf("invalid range, expected value,value got %s\n",
v->value);
extcap_free_arg(target_arg);
return NULL ;
}
if ((target_arg->range_end = extcap_parse_complex(
target_arg->arg_type, cp + 1)) == NULL) {
printf("invalid range, expected value,value got %s\n",
v->value);
extcap_free_arg(target_arg);
return NULL ;
}
}
if ((v = extcap_find_param_by_type(s->param_list, EXTCAP_PARAM_DEFAULT))
!= NULL) {
if ((target_arg->default_complex = extcap_parse_complex(
target_arg->arg_type, v->value)) == NULL) {
printf("invalid default, couldn't parse %s\n", v->value);
}
}
} else if (sent == EXTCAP_SENTENCE_VALUE) {
if ((v = extcap_find_param_by_type(s->param_list, EXTCAP_PARAM_ARG))
== NULL) {
printf("no arg in VALUE sentence\n");
return NULL ;
}
if (sscanf(v->value, "%d", &tint) != 1) {
printf("invalid arg in VALUE sentence\n");
return NULL ;
}
;
if ((entry = g_list_find_custom(args, &tint, glist_find_numbered_arg))
== NULL) {
printf("couldn't find arg %d in list for VALUE sentence\n", tint);
return NULL ;
}
value = g_new(extcap_value, 1);
value->display = NULL;
value->call = NULL;
value->enabled = FALSE;
value->is_default = FALSE;
value->arg_num = tint;
value->parent = NULL;
if ((v = extcap_find_param_by_type(s->param_list, EXTCAP_PARAM_VALUE))
== NULL) {
/* printf("no value in VALUE sentence\n"); */
extcap_free_value(value);
return NULL ;
}
value->call = g_strdup(v->value);
if ((v = extcap_find_param_by_type(s->param_list, EXTCAP_PARAM_DISPLAY))
== NULL) {
/* printf("no display in VALUE sentence\n"); */
extcap_free_value(value);
return NULL ;
}
value->display = g_strdup(v->value);
if ((v = extcap_find_param_by_type(s->param_list, EXTCAP_PARAM_PARENT))
!= NULL) {
value->parent = g_strdup(v->value);
}
if ((v = extcap_find_param_by_type(s->param_list, EXTCAP_PARAM_DEFAULT))
!= NULL) {
/* printf("found default value\n"); */
value->is_default = (v->value[0] == 't' || v->value[0] == 'T');
}
if ((v = extcap_find_param_by_type(s->param_list, EXTCAP_PARAM_ENABLED))
!= NULL) {
value->enabled = (v->value[0] == 't' || v->value[0] == 'T');
}
((extcap_arg*) entry->data)->values = g_list_append(
((extcap_arg*) entry->data)->values, value);
return NULL ;
}
return target_arg;
}
GList * extcap_parse_args(extcap_token_sentence *first_s) {
GList * args = NULL;
while (first_s) {
extcap_arg *ra = NULL;
if ((ra = extcap_parse_arg_sentence(args, first_s)) != NULL)
args = g_list_append(args, (gpointer) ra);
first_s = first_s->next_sentence;
}
return args;
}
int extcap_parse_interface_sentence(extcap_token_sentence *s,
extcap_interface **ri) {
extcap_token_param *v = NULL;
extcap_sentence_type sent = EXTCAP_SENTENCE_UNKNOWN;
*ri = NULL;
if (s == NULL)
return -1;
if (g_ascii_strcasecmp(s->sentence, "interface") == 0) {
sent = EXTCAP_SENTENCE_INTERFACE;
/* printf("INTERFACE sentence\n"); */
}
if (sent == EXTCAP_SENTENCE_UNKNOWN)
return -1;
*ri = extcap_new_interface();
if ((v = extcap_find_param_by_type(s->param_list, EXTCAP_PARAM_VALUE))
== NULL) {
printf("No value in INTERFACE sentence\n");
extcap_free_interface(*ri);
return -1;
}
(*ri)->call = g_strdup(v->value);
if ((v = extcap_find_param_by_type(s->param_list, EXTCAP_PARAM_DISPLAY))
== NULL) {
printf("No display in INTERFACE sentence\n");
extcap_free_interface(*ri);
return -1;
}
(*ri)->display = g_strdup(v->value);
return 1;
}
int extcap_parse_interfaces(extcap_token_sentence *first_s,
extcap_interface **first_int) {
extcap_interface *first_i = NULL, *last_i = NULL;
while (first_s) {
extcap_interface *ri;
if (extcap_parse_interface_sentence(first_s, &ri) >= 0 && ri != NULL) {
if (first_i == NULL) {
first_i = last_i = ri;
} else {
last_i->next_interface = ri;
last_i = ri;
}
}
first_s = first_s->next_sentence;
}
*first_int = first_i;
return 1;
}
int extcap_parse_dlt_sentence(extcap_token_sentence *s, extcap_dlt **rd) {
extcap_token_param *v = NULL;
extcap_sentence_type sent = EXTCAP_SENTENCE_UNKNOWN;
*rd = NULL;
if (s == NULL)
return -1;
if (g_ascii_strcasecmp(s->sentence, "dlt") == 0) {
sent = EXTCAP_SENTENCE_DLT;
}
if (sent == EXTCAP_SENTENCE_UNKNOWN)
return -1;
*rd = extcap_new_dlt();
if ((v = extcap_find_param_by_type(s->param_list, EXTCAP_PARAM_ARGNUM))
== NULL) {
printf("No number in DLT sentence\n");
extcap_free_dlt(*rd);
return -1;
}
if (sscanf(v->value, "%d", &((*rd)->number)) != 1) {
printf("Invalid number in DLT sentence\n");
extcap_free_dlt(*rd);
return -1;
}
if ((v = extcap_find_param_by_type(s->param_list, EXTCAP_PARAM_NAME))
== NULL) {
printf("No name in DLT sentence\n");
extcap_free_dlt(*rd);
return -1;
}
(*rd)->name = g_strdup(v->value);
if ((v = extcap_find_param_by_type(s->param_list, EXTCAP_PARAM_DISPLAY))
== NULL) {
printf("No display in DLT sentence\n");
extcap_free_dlt(*rd);
return -1;
}
(*rd)->display = g_strdup(v->value);
return 1;
}
int extcap_parse_dlts(extcap_token_sentence *first_s, extcap_dlt **first_dlt) {
extcap_dlt *first_d = NULL, *last_d = NULL;
while (first_s) {
extcap_dlt *rd;
if (extcap_parse_dlt_sentence(first_s, &rd) >= 0 && rd != NULL) {
if (first_d == NULL) {
first_d = last_d = rd;
} else {
last_d->next_dlt = rd;
last_d = rd;
}
}
first_s = first_s->next_sentence;
}
*first_dlt = first_d;
return 1;
}
/*
* Editor modelines - http://www.wireshark.org/tools/modelines.html
*
* Local variables:
* c-basic-offset: 4
* tab-width: 8
* indent-tabs-mode: nil
* End:
*
* vi: set shiftwidth=4 tabstop=8 expandtab:
* :indentSize=4:tabSize=8:noTabs=true:
*/
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