1c3cb91f72
This is a simple change to the use of getopt in reboot.c, as per the standard, getopt does NOT return an EOF, it returns a -1, (this was done to remove getopt's dependence on stdio.h), and since the standard does not guarantee that EOF is -1, and the documentation tells us that getopt returns -1, in my judgement it would be best to test for -1, rather than EOF. Change-Id: I63a3bb7011eb60753eb910221bbe8ce0a71e6679 Signed-off-by: David Gumberg <davidzgumberg@gmail.com>
78 lines
2 KiB
C
78 lines
2 KiB
C
/*
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* Copyright (C) 2013 The Android Open Source Project
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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 <errno.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <cutils/properties.h>
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#include <cutils/android_reboot.h>
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#include <unistd.h>
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int main(int argc, char *argv[])
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{
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int ret;
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size_t prop_len;
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char property_val[PROPERTY_VALUE_MAX];
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const char *cmd = "reboot";
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char *optarg = "";
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opterr = 0;
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do {
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int c;
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c = getopt(argc, argv, "p");
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if (c == -1) {
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break;
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}
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switch (c) {
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case 'p':
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cmd = "shutdown";
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break;
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case '?':
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fprintf(stderr, "usage: %s [-p] [rebootcommand]\n", argv[0]);
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exit(EXIT_FAILURE);
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}
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} while (1);
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if(argc > optind + 1) {
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fprintf(stderr, "%s: too many arguments\n", argv[0]);
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exit(EXIT_FAILURE);
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}
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if (argc > optind)
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optarg = argv[optind];
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prop_len = snprintf(property_val, sizeof(property_val), "%s,%s", cmd, optarg);
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if (prop_len >= sizeof(property_val)) {
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fprintf(stderr, "reboot command too long: %s\n", optarg);
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exit(EXIT_FAILURE);
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}
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ret = property_set(ANDROID_RB_PROPERTY, property_val);
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if(ret < 0) {
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perror("reboot");
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exit(EXIT_FAILURE);
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}
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// Don't return early. Give the reboot command time to take effect
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// to avoid messing up scripts which do "adb shell reboot && adb wait-for-device"
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while(1) { pause(); }
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fprintf(stderr, "Done\n");
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return 0;
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}
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