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/*
* Copyright (C) 2008 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.
*/
#include <stdlib.h>
#include <string.h>
#define LOG_TAG "NetlinkEvent"
#include <cutils/log.h>
#include <sysutils/NetlinkEvent.h>
const int NetlinkEvent::NlActionUnknown = 0;
const int NetlinkEvent::NlActionAdd = 1;
const int NetlinkEvent::NlActionRemove = 2;
const int NetlinkEvent::NlActionChange = 3;
NetlinkEvent::NetlinkEvent() {
mAction = NlActionUnknown;
}
NetlinkEvent::~NetlinkEvent() {
int i;
if (mPath)
free(mPath);
if (mSubsystem)
free(mSubsystem);
for (i = 0; i < NL_PARAMS_MAX; i++) {
if (!mParams[i])
break;
free(mParams[i]);
}
}
bool NetlinkEvent::decode(char *buffer, int size) {
char *s = buffer;
char *end;
int param_idx = 0;
int i;
int first = 1;
end = s + size;
while (s < end) {
if (first) {
char *p;
for (p = s; *p != '@'; p++);
p++;
mPath = strdup(p);
first = 0;
} else {
if (!strncmp(s, "ACTION=", strlen("ACTION="))) {
char *a = s + strlen("ACTION=");
if (!strcmp(a, "add"))
mAction = NlActionAdd;
else if (!strcmp(a, "remove"))
mAction = NlActionRemove;
else if (!strcmp(a, "change"))
mAction = NlActionChange;
} else if (!strncmp(s, "SEQNUM=", strlen("SEQNUM=")))
mSeq = atoi(s + strlen("SEQNUM="));
else if (!strncmp(s, "SUBSYSTEM=", strlen("SUBSYSTEM=")))
mSubsystem = strdup(s + strlen("SUBSYSTEM="));
else
mParams[param_idx++] = strdup(s);
}
s+= strlen(s) + 1;
}
return true;
}
const char *NetlinkEvent::findParam(const char *paramName) {
int i;
for (i = 0; i < NL_PARAMS_MAX; i++) {
if (!mParams[i])
break;
if (!strncmp(mParams[i], paramName, strlen(paramName)))
return &mParams[i][strlen(paramName) + 1];
}
LOGE("NetlinkEvent::FindParam(): Parameter '%s' not found", paramName);
return NULL;
}
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