package-nopast/base/embutils/losetup.patch

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# T2 SDE: package/.../embutils/losetup.patch
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Guess what ,-)

  - Rene Rebe <rene@exactcode.de>

--- /dev/null	2005-06-19 08:33:32.285177368 +0200
+++ embutils-0.17/losetup.c	2005-06-19 13:44:28.000000000 +0200
@@ -0,0 +1,65 @@
+/*
+ * Tiny losetup
+ *
+ * Copyright (c) 2005 by Rene Rebe <rene@exactcode.de>
+ *
+ * License: GPL, version 2
+ * 
+ */
+
+#define _FILE_OFFSET_BITS 64
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <sys/ioctl.h>
+#include <errno.h>
+
+#include <linux/posix_types.h>
+#include <linux/loop.h>
+
+#include "write12.h"
+
+void die(const char*msg) { __write2(msg); __write2("\n"); exit(1); }
+
+int main (int argc, char* argv[])
+{
+	int ffd, fd;
+	struct loop_info loopinfo;
+
+	if (argc != 3) {
+		 die("usage: losetup [-d] loop_device\n       losetup loop_device file");
+	}
+
+	if (!strcmp(argv[1], "-d"))
+	{
+		fd=open(argv[2], O_RDONLY);
+		if (fd < 0)
+			die(strerror(errno));
+
+		if (ioctl(fd, LOOP_CLR_FD, ffd))
+			die(strerror(errno));
+
+		close(fd);
+	}
+	else
+	{
+		memset(&loopinfo, 0, sizeof(loopinfo));
+		strncpy(loopinfo.lo_name, argv[2], LO_NAME_SIZE);
+	
+		ffd=open(argv[2], O_RDONLY);
+		if (ffd < 0)
+			die(strerror(errno));
+
+		fd=open(argv[1], O_RDONLY);
+		if (fd < 0)
+			die(strerror(errno));
+
+		if (ioctl(fd, LOOP_SET_FD, ffd))
+			die(strerror(errno));
+		if (ioctl(fd, LOOP_SET_STATUS, &loopinfo))
+			die(strerror(errno));
+
+		close(ffd);
+		close(fd);
+	}
+}
--- embutils-0.17/Makefile.orig	2005-06-19 13:46:49.000000000 +0200
+++ embutils-0.17/Makefile	2005-05-31 11:53:22.000000000 +0200
@@ -11,7 +11,7 @@
 install sosrm soscp sosmv sosln soslns md5sum sleep2 allinone kill uniq \
 dd tr mesg write touch du tail uuencode uudecode nohup nice cmp mktemp \
 truncate strings test date mount printenv umount pivot_root insmod rmmod \
-lsmod free
+lsmod free losetup
 
 OBJDIR:=bin
 TARGETS=$(patsubst %,$(OBJDIR)/%,$(PRGS))