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[Qemu-devel] [PATCH 1/2] qemu-nbd: reorganize help message
From: |
Paolo Bonzini |
Subject: |
[Qemu-devel] [PATCH 1/2] qemu-nbd: reorganize help message |
Date: |
Tue, 24 Jul 2012 09:41:38 +0200 |
This patch separates qemu-nbd's options in logical groups, thus making
the help message easier to read.
Signed-off-by: Paolo Bonzini <address@hidden>
---
qemu-nbd.c | 33 ++++++++++++++++++++++-----------
1 file changed, 22 insertions(+), 11 deletions(-)
diff --git a/qemu-nbd.c b/qemu-nbd.c
index 5a0300e..1c32290 100644
--- a/qemu-nbd.c
+++ b/qemu-nbd.c
@@ -46,28 +46,39 @@ static int nb_fds;
static void usage(const char *name)
{
- printf(
+ (printf) (
"Usage: %s [OPTIONS] FILE\n"
"QEMU Disk Network Block Device Server\n"
"\n"
+" -h, --help display this help and exit\n"
+" -V, --version output version information and exit\n"
+"\n"
+"Connection properties:\n"
" -p, --port=PORT port to listen on (default `%d')\n"
-" -o, --offset=OFFSET offset into the image\n"
" -b, --bind=IFACE interface to bind to (default `0.0.0.0')\n"
" -k, --socket=PATH path to the unix socket\n"
" (default '"SOCKET_PATH"')\n"
-" -r, --read-only export read-only\n"
-" -P, --partition=NUM only expose partition NUM\n"
-" -s, --snapshot use snapshot file\n"
-" -n, --nocache disable host cache\n"
-" -c, --connect=DEV connect FILE to the local NBD device DEV\n"
-" -d, --disconnect disconnect the specified device\n"
" -e, --shared=NUM device can be shared by NUM clients (default '1')\n"
" -t, --persistent don't exit on the last connection\n"
" -v, --verbose display extra debugging information\n"
-" -h, --help display this help and exit\n"
-" -V, --version output version information and exit\n"
"\n"
-"Report bugs to <address@hidden>\n"
+"Exposing part of the image:\n"
+" -o, --offset=OFFSET offset into the image\n"
+" -P, --partition=NUM only expose partition NUM\n"
+"\n"
+#ifdef __linux__
+"Kernel NBD client support:\n"
+" -c, --connect=DEV connect FILE to the local NBD device DEV\n"
+" -d, --disconnect disconnect the specified device\n"
+"\n"
+#endif
+"\n"
+"Block device options:\n"
+" -r, --read-only export read-only\n"
+" -s, --snapshot use snapshot file\n"
+" -n, --nocache disable host cache\n"
+"\n"
+"Report bugs to <address@hidden>\n"
, name, NBD_DEFAULT_PORT, "DEVICE");
}
--
1.7.10.4