149 lines
4.1 KiB
C++
149 lines
4.1 KiB
C++
/*
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* Copyright (C) 2012, The CyanogenMod Project
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* Daniel Hillenbrand <codeworkx@cyanogenmod.com>
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* Marco Hillenbrand <marco.hillenbrand@googlemail.com>
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/stat.h>
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#include <cutils/log.h>
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#define LOG_TAG "macloader"
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#define LOG_NDEBUG 0
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#define MACADDR_PATH "/efs/wifi/.mac.info"
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#define CID_PATH "/data/.cid.info"
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enum Type {
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NONE,
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MURATA,
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SEMCOSH,
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SEMCOVE
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};
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/*
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* murata:
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* 00:37:6d
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* 88:30:8a
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*
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* semcosh:
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* 5c:0a:5b
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*
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*/
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int main() {
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FILE* file;
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FILE* cidfile;
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char* str;
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char mac_addr_half[9];
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int ret = -1;
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int amode;
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enum Type type = NONE;
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/* open mac addr file */
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file = fopen(MACADDR_PATH, "r");
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if(file == 0) {
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fprintf(stderr, "open(%s) failed\n", MACADDR_PATH);
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ALOGE("Can't open %s\n", MACADDR_PATH);
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return -1;
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}
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/* get and compare mac addr */
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str = fgets(mac_addr_half, 9, file);
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if(str == 0) {
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fprintf(stderr, "fgets() from file %s failed\n", MACADDR_PATH);
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ALOGE("Can't read from %s\n", MACADDR_PATH);
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return -1;
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}
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/* murata */
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if(strncasecmp(mac_addr_half, "00:37:6d", 9) == 0 ||
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strncasecmp(mac_addr_half, "88:30:8a", 9) == 0 ||
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strncasecmp(mac_addr_half, "20:02:af", 9) == 0) {
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type = MURATA;
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}
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/* semcosh */
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if(strncasecmp(mac_addr_half, "5c:0a:5b", 9) == 0) {
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type = SEMCOSH;
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}
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if (type != NONE) {
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/* open cid file */
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cidfile = fopen(CID_PATH, "w");
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if(cidfile == 0) {
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fprintf(stderr, "open(%s) failed\n", CID_PATH);
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ALOGE("Can't open %s\n", CID_PATH);
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return -1;
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}
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switch(type) {
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case NONE:
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return -1;
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break;
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case MURATA:
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/* write murata to cid file */
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ALOGI("Writing murata to %s\n", CID_PATH);
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ret = fputs("murata", cidfile);
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break;
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case SEMCOSH:
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/* write semcosh to cid file */
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ALOGI("Writing semcosh to %s\n", CID_PATH);
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ret = fputs("semcosh", cidfile);
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break;
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case SEMCOVE:
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/* write semcove to cid file */
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ALOGI("Writing semcove to %s\n", CID_PATH);
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ret = fputs("semcove", cidfile);
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break;
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}
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if(ret != 0) {
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fprintf(stderr, "fputs() to file %s failed\n", CID_PATH);
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ALOGE("Can't write to %s\n", CID_PATH);
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return -1;
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}
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fclose(cidfile);
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/* set permissions on cid file */
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ALOGD("Setting permissions on %s\n", CID_PATH);
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amode = S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH;
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ret = chmod(CID_PATH, amode);
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char* chown_cmd = (char*) malloc(strlen("chown system ") + strlen(CID_PATH));
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char* chgrp_cmd = (char*) malloc(strlen("chgrp system ") + strlen(CID_PATH));
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sprintf(chown_cmd, "chown system %s", CID_PATH);
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sprintf(chgrp_cmd, "chgrp system %s", CID_PATH);
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system(chown_cmd);
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system(chgrp_cmd);
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if(ret != 0) {
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fprintf(stderr, "chmod() on file %s failed\n", CID_PATH);
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ALOGE("Can't set permissions on %s\n", CID_PATH);
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return ret;
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}
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} else {
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/* delete cid file if no specific type */
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ALOGD("Deleting file %s\n", CID_PATH);
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remove(CID_PATH);
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}
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fclose(file);
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return 0;
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}
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