Merge "Remove toolbox ioctl."
This commit is contained in:
Treehugger Robot
Gerrit Code Review
commit
0fdd663262
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@ -32,7 +32,6 @@ BSD_TOOLS := \
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OUR_TOOLS := \
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getevent \
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ioctl \
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log \
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nandread \
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newfs_msdos \
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182
toolbox/ioctl.c
182
toolbox/ioctl.c
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@ -1,182 +0,0 @@
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/*
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* Copyright (c) 2008, The Android Open Source Project
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Google, Inc. nor the names of its contributors
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* may be used to endorse or promote products derived from this
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* software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <errno.h>
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#include <error.h>
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#include <fcntl.h>
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#include <getopt.h>
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#include <stdio.h>
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#include <stdint.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/ioctl.h>
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#include <unistd.h>
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static void usage() {
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fprintf(stderr, "%s [-l <length>] [-a <argsize>] [-rdh] <device> <ioctlnr>\n"
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" -l <length> Length of io buffer\n"
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" -a <argsize> Size of each argument (1-8)\n"
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" -r Open device in read only mode\n"
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" -d Direct argument (no iobuffer)\n"
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" -h Print help\n", getprogname());
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exit(1);
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}
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static int xstrtoi(const char* s, const char* what) {
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char* endp;
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errno = 0;
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long result = strtol(s, &endp, 0);
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if (errno != 0 || *endp != '\0') {
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error(1, errno, "couldn't parse %s '%s'", what, s);
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}
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if (result > INT_MAX || result < INT_MIN) {
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error(1, errno, "%s '%s' out of range", what, s);
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}
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return result;
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}
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int ioctl_main(int argc, char* argv[]) {
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int read_only = 0;
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int length = -1;
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int arg_size = 4;
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int direct_arg = 0;
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void *ioctl_args = NULL;
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uint8_t *ioctl_argp;
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uint8_t *ioctl_argp_save = NULL;
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int rem;
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int c;
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while ((c = getopt(argc, argv, "rdl:a:h")) != -1) {
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switch (c) {
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case 'r':
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read_only = 1;
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break;
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case 'd':
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direct_arg = 1;
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break;
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case 'l':
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length = xstrtoi(optarg, "length");
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break;
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case 'a':
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arg_size = xstrtoi(optarg, "argument size");
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break;
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case 'h':
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usage();
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break;
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default:
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error(1, 0, "invalid option -%c", optopt);
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}
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}
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if (optind + 2 > argc) {
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usage();
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}
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const char* device = argv[optind];
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int fd;
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if (strcmp(device, "-") == 0) {
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fd = STDIN_FILENO;
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} else {
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fd = open(device, read_only ? O_RDONLY : (O_RDWR | O_SYNC));
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if (fd == -1) {
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error(1, errno, "cannot open %s", argv[optind]);
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}
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}
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optind++;
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// IOCTL(2) wants second parameter as a signed int.
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// Let's let the user specify either negative numbers or large positive
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// numbers, for the case where ioctl number is larger than INT_MAX.
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errno = 0;
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char* endp;
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int ioctl_nr = UINT_MAX & strtoll(argv[optind], &endp, 0);
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if (errno != 0 || *endp != '\0') {
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error(1, errno, "couldn't parse ioctl number '%s'", argv[optind]);
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}
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optind++;
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if(direct_arg) {
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arg_size = 4;
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length = 4;
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}
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if(length < 0) {
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length = (argc - optind) * arg_size;
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}
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if(length) {
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ioctl_args = calloc(1, length);
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ioctl_argp_save = ioctl_argp = ioctl_args;
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rem = length;
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while (optind < argc) {
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uint64_t tmp = strtoull(argv[optind], NULL, 0);
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if (rem < arg_size) {
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error(1, 0, "too many arguments");
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}
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memcpy(ioctl_argp, &tmp, arg_size);
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ioctl_argp += arg_size;
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rem -= arg_size;
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optind++;
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}
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}
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printf("sending ioctl 0x%x", ioctl_nr);
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rem = length;
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while(rem--) {
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printf(" 0x%02x", *ioctl_argp_save++);
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}
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printf(" to %s\n", device);
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int res;
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if(direct_arg)
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res = ioctl(fd, ioctl_nr, *(uint32_t*)ioctl_args);
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else if(length)
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res = ioctl(fd, ioctl_nr, ioctl_args);
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else
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res = ioctl(fd, ioctl_nr, 0);
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if (res < 0) {
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free(ioctl_args);
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error(1, errno, "ioctl 0x%x failed (returned %d)", ioctl_nr, res);
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}
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if (length) {
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printf("return buf:");
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ioctl_argp = ioctl_args;
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rem = length;
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while(rem--) {
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printf(" %02x", *ioctl_argp++);
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}
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printf("\n");
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}
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free(ioctl_args);
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close(fd);
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return 0;
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}
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