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/* Copyright (c) 2017 Nicira, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <config.h>
#include "ovsdb-session.h"
#include <stdbool.h>
#include <stddef.h>
#include <string.h>
#include "svec.h"
#include "util.h"
#include "uuid.h"
static const char *
next_remote(const char *s)
{
for (const char *delimiter = strchr(s, ','); delimiter;
delimiter = strchr(delimiter + 1, ',')) {
const char *p = delimiter + 1;
p += strspn(p, " \t");
size_t n_letters = strspn(p, "abcdefghijklmnopqrstuvwxyz");
if (n_letters && p[n_letters] == ':') {
return delimiter;
}
}
return NULL;
}
/* Parses string 's' into comma-delimited substrings and adds each of them into
* 'remotes'. If one of the substrings is of the form "cid:<uuid>", fills
* '*cid' with the UUID (and omits it from 'remotes'), otherwise initializes
* '*cid' to UUID_ZERO. */
void
ovsdb_session_parse_remote(const char *s,
struct svec *remotes, struct uuid *cid)
{
*cid = UUID_ZERO;
for (;;) {
/* Skip white space. */
s += strspn(s, " \t");
if (*s == '\0') {
break;
}
/* Find the start of the next remote */
const char *delimiter = next_remote(s);
if (!delimiter) {
svec_add(remotes, s);
break;
}
svec_add_nocopy(remotes, xmemdup0(s, delimiter - s));
s = delimiter + 1;
}
size_t i;
for (i = 0; i < remotes->n; i++) {
const char *name = remotes->names[i];
struct uuid uuid;
if (!strncmp(name, "cid:", 4) && uuid_from_string(&uuid, name + 4)) {
*cid = uuid;
svec_del(remotes, name);
break;
}
}
}
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