package/base/embutils/losetup.patch

   1 # --- T2-COPYRIGHT-NOTE-BEGIN ---
   2 # This copyright note is auto-generated by ./scripts/Create-CopyPatch.
   3 #
   4 # T2 SDE: package/.../embutils/losetup.patch
   5 # Copyright (C) 2005 - 2007 The T2 SDE Project
   6 #
   7 # More information can be found in the files COPYING and README.
   8 #
   9 # This patch file is dual-licensed. It is available under the license the
  10 # patched project is licensed under, as long as it is an OpenSource license
  11 # as defined at http://www.opensource.org/ (e.g. BSD, X11) or under the terms
  12 # of the GNU General Public License as published by the Free Software
  13 # Foundation; either version 2 of the License, or (at your option) any later
  14 # version.
  15 # --- T2-COPYRIGHT-NOTE-END ---
  16
  17 Guess what ,-)
  18
  19   - Rene Rebe <rene@exactcode.de>
  20
  21 --- /dev/null   2005-06-19 08:33:32.285177368 +0200
  22 +++ embutils-0.17/losetup.c     2005-06-19 13:44:28.000000000 +0200
  23 @@ -0,0 +1,66 @@
  24 +/*
  25 + * Tiny losetup
  26 + *
  27 + * Copyright (c) 2005, 2007 by Rene Rebe <rene@exactcode.de>
  28 + *
  29 + * License: GPL, version 2
  30 + *
  31 + */
  32 +
  33 +#define _FILE_OFFSET_BITS 64
  34 +#include <sys/types.h>
  35 +#include <sys/stat.h>
  36 +#include <fcntl.h>
  37 +#include <sys/ioctl.h>
  38 +#include <errno.h>
  39 +
  40 +#include <linux/posix_types.h>
  41 +#include <linux/loop.h>
  42 +
  43 +#include "write12.h"
  44 +
  45 +void die(const char*msg) { __write2(msg); __write2("\n"); exit(1); }
  46 +
  47 +int main (int argc, char* argv[])
  48 +{
  49 +       int ffd, fd;
  50 +       struct loop_info loopinfo;
  51 +
  52 +       if (argc != 3) {
  53 +                die("usage: losetup [-d] loop_device\n       losetup loop_device file");
  54 +       }
  55 +
  56 +       if (!strcmp(argv[1], "-d"))
  57 +       {
  58 +               fd=open(argv[2], O_RDONLY);
  59 +               if (fd < 0)
  60 +                       die(strerror(errno));
  61 +
  62 +               if (ioctl(fd, LOOP_CLR_FD, ffd))
  63 +                       die(strerror(errno));
  64 +
  65 +               close(fd);
  66 +       }
  67 +       else
  68 +       {
  69 +               memset(&loopinfo, 0, sizeof(loopinfo));
  70 +               strncpy(loopinfo.lo_name, argv[2], LO_NAME_SIZE);
  71 +
  72 +               ffd=open(argv[2], O_RDONLY);
  73 +               if (ffd < 0)
  74 +                       die(strerror(errno));
  75 +
  76 +               fd=open(argv[1], O_RDONLY);
  77 +               if (fd < 0)
  78 +                       die(strerror(errno));
  79 +
  80 +               if (ioctl(fd, LOOP_SET_FD, ffd))
  81 +                       die(strerror(errno));
  82 +               if (ioctl(fd, LOOP_SET_STATUS, &loopinfo))
  83 +                       die(strerror(errno));
  84 +
  85 +               close(ffd);
  86 +               close(fd);
  87 +       }
  88 +       return 0;
  89 +}
  90 --- ./Makefile~ 2006-11-05 11:45:35.000000000 +0100
  91 +++ ./Makefile  2006-11-05 11:45:39.000000000 +0100
  92 @@ -13,7 +13,7 @@
  93  sosrm soscp sosmv sosln soslns md5sum sleep2 allinone uniq tr mesg du \
  94  uuencode uudecode nohup nice cmp mktemp truncate strings test date \
  95  printenv chrootuid renice \
  96 -free
  97 +free losetup
  98
  99  OS:=$(shell uname)
 100  ifeq ($(OS),Linux)