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[Qemu-devel] [PATCH v2 01/20] nbd: produce a better error if neither hos
From: |
Paolo Bonzini |
Subject: |
[Qemu-devel] [PATCH v2 01/20] nbd: produce a better error if neither host nor port is passed |
Date: |
Tue, 11 Feb 2014 18:03:34 +0100 |
Before:
$ qemu-io-old
qemu-io-old> open -r -o file.driver=nbd
qemu-io-old: can't open device (null): Could not open image: Invalid
argument
$ ./qemu-io-old
qemu-io-old> open -r -o file.driver=nbd,file.host=foo,file.path=bar
path and host may not be used at the same time.
qemu-io-old: can't open device (null): Could not open image: Invalid
argument
After:
$ ./qemu-io
qemu-io> open -r -o file.driver=nbd
one of path and host must be specified.
qemu-io: can't open device (null): Could not open image: Invalid argument
$ ./qemu-io
qemu-io> open -r -o file.driver=nbd,file.host=foo,file.path=bar
path and host may not be used at the same time.
qemu-io: can't open device (null): Could not open image: Invalid argument
Next patch will fix the error propagation.
Signed-off-by: Paolo Bonzini <address@hidden>
---
block/nbd.c | 13 ++++++-------
1 file changed, 6 insertions(+), 7 deletions(-)
diff --git a/block/nbd.c b/block/nbd.c
index 327e913..fd89083 100644
--- a/block/nbd.c
+++ b/block/nbd.c
@@ -192,19 +192,18 @@ static int nbd_config(BDRVNBDState *s, QDict *options,
char **export)
{
Error *local_err = NULL;
- if (qdict_haskey(options, "path")) {
- if (qdict_haskey(options, "host")) {
+ if (qdict_haskey(options, "path") == qdict_haskey(options, "host")) {
+ if (qdict_haskey(options, "path")) {
qerror_report(ERROR_CLASS_GENERIC_ERROR, "path and host may not "
"be used at the same time.");
- return -EINVAL;
+ } else {
+ qerror_report(ERROR_CLASS_GENERIC_ERROR, "one of path and host "
+ "must be specified.");
}
- s->client.is_unix = true;
- } else if (qdict_haskey(options, "host")) {
- s->client.is_unix = false;
- } else {
return -EINVAL;
}
+ s->client.is_unix = qdict_haskey(options, "path");
s->socket_opts = qemu_opts_create(&socket_optslist, NULL, 0,
&error_abort);
--
1.8.5.3
- [Qemu-devel] [PATCH v2 00/20] Improve bdrv_open error messages, Paolo Bonzini, 2014/02/11
- [Qemu-devel] [PATCH v2 01/20] nbd: produce a better error if neither host nor port is passed,
Paolo Bonzini <=
- [Qemu-devel] [PATCH v2 02/20] nbd: correctly propagate errors, Paolo Bonzini, 2014/02/11
- [Qemu-devel] [PATCH v2 03/20] nbd: inline tcp_socket_incoming_spec into sole caller, Paolo Bonzini, 2014/02/11
- [Qemu-devel] [PATCH v2 04/20] nbd: move socket wrappers to qemu-nbd, Paolo Bonzini, 2014/02/11
- [Qemu-devel] [PATCH v2 07/20] gluster: default scheme to gluster:// and host to localhost., Paolo Bonzini, 2014/02/11
- [Qemu-devel] [PATCH v2 06/20] iscsi: correctly propagate errors in iscsi_open, Paolo Bonzini, 2014/02/11