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https://github.com/systemd/systemd.git
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151 lines
2.9 KiB
C
151 lines
2.9 KiB
C
/*
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* ata_id - reads product/serial number from ATA drives
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*
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* Copyright (C) 2005 Kay Sievers <kay.sievers@vrfy.org>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifndef _GNU_SOURCE
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#define _GNU_SOURCE 1
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#endif
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <ctype.h>
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#include <errno.h>
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#include <sys/ioctl.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <linux/types.h>
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#include <linux/hdreg.h>
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#include "../../logging.h"
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#include "../../udev_utils.h"
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#ifdef USE_LOG
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void log_message(int priority, const char *format, ...)
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{
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va_list args;
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static int udev_log = -1;
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if (udev_log == -1) {
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const char *value;
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value = getenv("UDEV_LOG");
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if (value)
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udev_log = log_priority(value);
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else
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udev_log = LOG_ERR;
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}
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if (priority > udev_log)
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return;
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va_start(args, format);
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vsyslog(priority, format, args);
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va_end(args);
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}
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#endif
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static void set_str(char *to, const unsigned char *from, int count)
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{
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int i, j;
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int len;
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len = strnlen(from, count);
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while (isspace(from[len-1]))
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len--;
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i = 0;
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while (isspace(from[i]) && (i < len))
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i++;
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j = 0;
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while (i < len) {
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switch(from[i]) {
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case '/':
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case ' ':
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to[j++] = '_';
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default:
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to[j++] = from[i];
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}
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i++;
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}
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to[j] = '\0';
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}
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int main(int argc, char *argv[])
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{
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struct hd_driveid id;
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char model[41];
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char serial[21];
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char revision[9];
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const char *node = NULL;
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int i;
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int export = 0;
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int fd;
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int rc = 0;
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for (i = 1 ; i < argc; i++) {
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char *arg = argv[i];
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if (strcmp(arg, "--export") == 0) {
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export = 1;
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} else
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node = arg;
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}
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if (!node) {
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err("no node specified");
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rc = 1;
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goto exit;
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}
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fd = open(node, O_RDONLY);
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if (fd < 0)
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if (errno == ENOMEDIUM)
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fd = open(node, O_RDONLY|O_NONBLOCK);
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if (fd < 0) {
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err("unable to open '%s'", node);
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rc = 1;
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goto exit;
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}
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if (ioctl(fd, HDIO_GET_IDENTITY, &id)) {
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err("HDIO_GET_IDENTITY failed for '%s'", node);
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rc = 3;
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goto close;
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}
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set_str(model, id.model, 40);
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set_str(serial, id.serial_no, 20);
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set_str(revision, id.fw_rev, 8);
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if (export) {
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printf("ID_MODEL=%s\n", model);
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printf("ID_SERIAL=%s\n", serial);
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printf("ID_REVISION=%s\n", revision);
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} else
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printf("%s_%s\n", model, serial);
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close:
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close(fd);
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exit:
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logging_close();
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return rc;
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}
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