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/*
* array-info - Array Controllers Informations
* Copyright (C) 2002 Benoit Gaussen (ben@trez42.net)
*
* $Log: array_utils.c,v $
* Revision 1.6 2002/07/29 16:49:10 trez42
* Add plugin support
* Change directory structure
*
* Revision 1.5 2002/07/25 16:51:14 trez42
* CVS Fixes
*
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "array_info.h"
void *
xmalloc(int size)
{
void *addr;
if (!(addr = malloc(size))) {
printf("Cannot allocate memory...\n");
}
return addr;
}
array_data_t *
open_ctrl(char *device_path)
{
int fd;
struct stat stat_buf;
array_data_t *array_data;
if ((fd = open(device_path, O_RDONLY)) < 0)
perror("open");
fstat(fd, &stat_buf);
if (!(S_ISBLK(stat_buf.st_mode) || (S_ISCHR(stat_buf.st_mode)))) {
printf("%s is not a valid block or char device...\n",
device_path);
return NULL;
}
if (!(array_data = xmalloc(sizeof (*array_data))))
return NULL;
array_data->fd = fd;
array_data->device_major.type =
S_ISBLK(stat_buf.st_mode) ? BLOCK_DEVICE : CHAR_DEVICE;
array_data->device_major.major = major(stat_buf.st_rdev);
array_data->device_major.minor = minor(stat_buf.st_rdev);
return array_data;
}
void
close_ctrl(array_data_t * ctrl_data)
{
close(ctrl_data->fd);
free(ctrl_data);
}
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