/
auth-common.c
135 lines (114 loc) · 2.83 KB
/
auth-common.c
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/*
* OpenConnect (SSL + DTLS) VPN client
*
* Copyright © 2008-2015 Intel Corporation.
*
* Author: David Woodhouse <dwmw2@infradead.org>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License
* version 2.1, as published by the Free Software Foundation.
*
* 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
* Lesser General Public License for more details.
*/
#include <config.h>
#include <unistd.h>
#include <fcntl.h>
#include <time.h>
#include <string.h>
#include <ctype.h>
#include <errno.h>
#include <stdlib.h>
#include <stdio.h>
#include <sys/types.h>
#include <stdarg.h>
#include "openconnect-internal.h"
int xmlnode_is_named(xmlNode *xml_node, const char *name)
{
return !strcmp((char *)xml_node->name, name);
}
int xmlnode_get_prop(xmlNode *xml_node, const char *name, char **var)
{
char *str = (char *)xmlGetProp(xml_node, (unsigned char *)name);
if (!str)
return -ENOENT;
free(*var);
*var = str;
return 0;
}
int xmlnode_match_prop(xmlNode *xml_node, const char *name, const char *match)
{
char *str = (char *)xmlGetProp(xml_node, (unsigned char *)name);
int ret = 0;
if (!str)
return -ENOENT;
if (strcmp(str, match))
ret = -EEXIST;
free(str);
return ret;
}
int append_opt(struct oc_text_buf *body, char *opt, char *name)
{
if (buf_error(body))
return buf_error(body);
if (body->pos)
buf_append(body, "&");
buf_append_urlencoded(body, opt);
buf_append(body, "=");
buf_append_urlencoded(body, name);
return 0;
}
int append_form_opts(struct openconnect_info *vpninfo,
struct oc_auth_form *form, struct oc_text_buf *body)
{
struct oc_form_opt *opt;
int ret;
for (opt = form->opts; opt; opt = opt->next) {
ret = append_opt(body, opt->name, opt->_value);
if (ret)
return ret;
}
return 0;
}
void free_opt(struct oc_form_opt *opt)
{
/* for SELECT options, opt->value is a pointer to oc_choice->name */
if (opt->type != OC_FORM_OPT_SELECT)
free(opt->_value);
else {
struct oc_form_opt_select *sel = (void *)opt;
int i;
for (i = 0; i < sel->nr_choices; i++) {
free(sel->choices[i]->name);
free(sel->choices[i]->label);
free(sel->choices[i]->auth_type);
free(sel->choices[i]->override_name);
free(sel->choices[i]->override_label);
free(sel->choices[i]);
}
free(sel->choices);
}
free(opt->name);
free(opt->label);
free(opt);
}
void free_auth_form(struct oc_auth_form *form)
{
if (!form)
return;
while (form->opts) {
struct oc_form_opt *tmp = form->opts->next;
free_opt(form->opts);
form->opts = tmp;
}
free(form->error);
free(form->message);
free(form->banner);
free(form->auth_id);
free(form->method);
free(form->action);
free(form);
}