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authorMatt Kraai2002-03-20 17:38:37 +0000
committerMatt Kraai2002-03-20 17:38:37 +0000
commit83788da25055c4a2775c3d78a29255ee671141bb (patch)
tree0b3bc1a959cb05eed021051978f7af1cc9c3108d
parent27eff033d20198f04ecf44af93988b89363650e4 (diff)
downloadbusybox-83788da25055c4a2775c3d78a29255ee671141bb.zip
busybox-83788da25055c4a2775c3d78a29255ee671141bb.tar.gz
* include/applets.h (CONFIG_LOSETUP): New.
* include/usage.h (losetup_trivial_usage, losetup_full_usage): New. * util-linux/Makefile: Add losetup.o. * util-linux/config.in: Add losetup prompt. * util-linux/losetup.c: New.
-rw-r--r--include/applets.h3
-rw-r--r--include/usage.h9
-rw-r--r--util-linux/Makefile1
-rw-r--r--util-linux/config.in1
-rw-r--r--util-linux/losetup.c58
5 files changed, 72 insertions, 0 deletions
diff --git a/include/applets.h b/include/applets.h
index 0d310bd..6760fc5 100644
--- a/include/applets.h
+++ b/include/applets.h
@@ -269,6 +269,9 @@
#ifdef CONFIG_LOGREAD
APPLET(logread, logread_main, _BB_DIR_SBIN)
#endif
+#ifdef CONFIG_LOSETUP
+ APPLET(losetup, losetup_main, _BB_DIR_SBIN)
+#endif
#ifdef CONFIG_LS
APPLET(ls, ls_main, _BB_DIR_BIN)
#endif
diff --git a/include/usage.h b/include/usage.h
index c4ad044..6692aa5 100644
--- a/include/usage.h
+++ b/include/usage.h
@@ -989,6 +989,15 @@
#define logread_full_usage \
"Shows the messages from syslogd (using circular buffer)."
+#define losetup_trivial_usage \
+ "[OPTION]... LOOPDEVICE FILE\n" \
+ "or: losetup [OPTION]... -d LOOPDEVICE"
+#define losetup_full_usage \
+ "Associate LOOPDEVICE with FILE.\n\n" \
+ "Options:\n" \
+ "\t-d\t\tDisassociate LOOPDEVICE.\n" \
+ "\t-o OFFSET\tStart OFFSET bytes into FILE.\n"
+
#ifdef CONFIG_FEATURE_LS_TIMESTAMPS
#define USAGE_LS_TIMESTAMPS(a) a
#else
diff --git a/util-linux/Makefile b/util-linux/Makefile
index 0971aca..9cd1486 100644
--- a/util-linux/Makefile
+++ b/util-linux/Makefile
@@ -31,6 +31,7 @@ obj-$(CONFIG_FREERAMDISK) += freeramdisk.o
obj-$(CONFIG_FSCK_MINIX) += fsck_minix.o
obj-$(CONFIG_GETOPT) += getopt.o
obj-$(CONFIG_HEXDUMP) += hexdump.o
+obj-$(CONFIG_LOSETUP) += losetup.o
obj-$(CONFIG_MKFS_MINIX) += mkfs_minix.o
obj-$(CONFIG_MKSWAP) += mkswap.o
obj-$(CONFIG_MORE) += more.o
diff --git a/util-linux/config.in b/util-linux/config.in
index 6058944..f96fa18 100644
--- a/util-linux/config.in
+++ b/util-linux/config.in
@@ -23,6 +23,7 @@ if [ "$CONFIG_FSCK_MINIX" = "y" -o "$CONFIG_MKFS_MINIX" = "y" ]; then
fi
bool 'getopt' CONFIG_GETOPT
bool 'hexdump' CONFIG_HEXDUMP
+bool 'losetup' CONFIG_LOSETUP
bool 'mkswap' CONFIG_MKSWAP
bool 'more' CONFIG_MORE
if [ "$CONFIG_MORE" = "y" ]; then
diff --git a/util-linux/losetup.c b/util-linux/losetup.c
new file mode 100644
index 0000000..bfeb6b2
--- /dev/null
+++ b/util-linux/losetup.c
@@ -0,0 +1,58 @@
+/*
+ * Mini losetup implementation for busybox
+ *
+ * Copyright (C) 2002 Matt Kraai.
+ *
+ * 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 <getopt.h>
+#include <stdlib.h>
+
+#include "busybox.h"
+
+int
+losetup_main (int argc, char **argv)
+{
+ int delete = 0;
+ int offset = 0;
+ int opt;
+
+ while ((opt = getopt (argc, argv, "do:")) != -1)
+ switch (opt)
+ {
+ case 'd':
+ delete = 1;
+ break;
+
+ case 'o':
+ offset = parse_number (optarg, NULL);
+ break;
+
+ default:
+ show_usage ();
+ }
+
+ if ((delete && (offset || optind + 1 != argc))
+ || (!delete && optind + 2 != argc))
+ show_usage ();
+
+ if (delete)
+ return del_loop (argv[optind]) ? EXIT_SUCCESS : EXIT_FAILURE;
+ else
+ return set_loop (argv[optind], argv[optind + 1], offset, &opt)
+ ? EXIT_FAILURE : EXIT_SUCCESS;
+}