/*
* Utility routines.
*
- * Copyright (C) 1999,2000,2001 by Erik Andersen <andersee@debian.org>
+ * Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
*
* 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
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
+#include <features.h>
+#if defined (__GLIBC__) && !defined(__UCLIBC__)
+#include <linux/posix_types.h>
+#endif
#include <stdio.h>
#include <errno.h>
#include <fcntl.h>
#include <unistd.h>
#include <sys/ioctl.h>
#include "libbb.h"
-#include "loop.h" /* Pull in loop device support */
+
+/* Grumble... The 2.6.x kernel breaks asm/posix_types.h
+ * so we get to try and cope as best we can... */
+#include <linux/version.h>
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
+#define __bb_kernel_dev_t __kernel_old_dev_t
+#elif LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
+#define __bb_kernel_dev_t __kernel_dev_t
+#else
+#define __bb_kernel_dev_t unsigned short
+#endif
+
+/* Stuff stolen from linux/loop.h */
+#define LO_NAME_SIZE 64
+#define LO_KEY_SIZE 32
+#define LOOP_SET_FD 0x4C00
+#define LOOP_CLR_FD 0x4C01
+#define LOOP_SET_STATUS 0x4C02
+#define LOOP_GET_STATUS 0x4C03
+struct loop_info {
+ int lo_number;
+ __bb_kernel_dev_t lo_device;
+ unsigned long lo_inode;
+ __bb_kernel_dev_t lo_rdevice;
+ int lo_offset;
+ int lo_encrypt_type;
+ int lo_encrypt_key_size;
+ int lo_flags;
+ char lo_name[LO_NAME_SIZE];
+ unsigned char lo_encrypt_key[LO_KEY_SIZE];
+ unsigned long lo_init[2];
+ char reserved[4];
+};
extern int del_loop(const char *device)
{
int fd;
if ((fd = open(device, O_RDONLY)) < 0) {
- perror_msg("%s", device);
+ bb_perror_msg("%s", device);
return (FALSE);
}
if (ioctl(fd, LOOP_CLR_FD, 0) < 0) {
- perror_msg("ioctl: LOOP_CLR_FD");
+ close(fd);
+ bb_perror_msg("ioctl: LOOP_CLR_FD");
return (FALSE);
}
close(fd);
mode = *loopro ? O_RDONLY : O_RDWR;
if ((ffd = open(file, mode)) < 0 && !*loopro
&& (errno != EROFS || (ffd = open(file, mode = O_RDONLY)) < 0)) {
- perror_msg("%s", file);
+ bb_perror_msg("%s", file);
return 1;
}
if ((fd = open(device, mode)) < 0) {
close(ffd);
- perror_msg("%s", device);
+ bb_perror_msg("%s", device);
return 1;
}
*loopro = (mode == O_RDONLY);
loopinfo.lo_encrypt_key_size = 0;
if (ioctl(fd, LOOP_SET_FD, ffd) < 0) {
- perror_msg("ioctl: LOOP_SET_FD");
+ bb_perror_msg("ioctl: LOOP_SET_FD");
close(fd);
close(ffd);
return 1;
}
if (ioctl(fd, LOOP_SET_STATUS, &loopinfo) < 0) {
(void) ioctl(fd, LOOP_CLR_FD, 0);
- perror_msg("ioctl: LOOP_SET_STATUS");
+ bb_perror_msg("ioctl: LOOP_SET_STATUS");
close(fd);
close(ffd);
return 1;