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/*
**
** Copyright 2009, The Android Open Source Project
**
** 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.
*/
#ifndef __NETKEYSTORE_H__
#define __NETKEYSTORE_H__
#include <stdio.h>
#include <cutils/sockets.h>
#include <cutils/log.h>
#include "common.h"
static inline int readx(int s, void *_buf, int count)
{
char *buf = _buf;
int n = 0, r;
if (count < 0) return -1;
while (n < count) {
r = read(s, buf + n, count - n);
if (r < 0) {
if (errno == EINTR) continue;
LOGE("read error: %s\n", strerror(errno));
return -1;
}
if (r == 0) {
LOGE("eof\n");
return -1; /* EOF */
}
n += r;
}
return 0;
}
static inline int writex(int s, const void *_buf, int count)
{
const char *buf = _buf;
int n = 0, r;
if (count < 0) return -1;
while (n < count) {
r = write(s, buf + n, count - n);
if (r < 0) {
if (errno == EINTR) continue;
LOGE("write error: %s\n", strerror(errno));
return -1;
}
n += r;
}
return 0;
}
static inline int read_marshal(int s, LPC_MARSHAL *cmd)
{
if (readx(s, cmd, 2 * sizeof(uint32_t))) {
LOGE("failed to read header\n");
return -1;
}
if (cmd->len > BUFFER_MAX) {
LOGE("invalid size %d\n", cmd->len);
return -1;
}
if (readx(s, cmd->data, cmd->len)) {
LOGE("failed to read data\n");
return -1;
}
cmd->data[cmd->len] = 0;
return 0;
}
static inline int write_marshal(int s, LPC_MARSHAL *cmd)
{
if (writex(s, cmd, 2 * sizeof(uint32_t))) {
LOGE("failed to write marshal header\n");
return -1;
}
if (writex(s, cmd->data, cmd->len)) {
LOGE("failed to write marshal data\n");
return -1;
}
return 0;
}
#endif
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