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authorMarkus Armbruster <armbru@redhat.com>2015-05-15 13:58:52 +0200
committerStefan Hajnoczi <stefanha@redhat.com>2015-05-27 09:51:05 +0100
commit3791f83ca999edc2d11eb2006ccc1091cd712c15 (patch)
tree0fea3606998240a6595e9d6a2ce12067b54a8462 /net/dump.c
parent6630886863d4a9b3b7bcb3b0e2895d83eb269c75 (diff)
net/dump: Improve -net/host_net_add dump error reporting
When -net dump fails, it first reports a specific error, then a generic one, like this: $ qemu-system-x86_64 -net dump,id=foo,file=/eperm qemu-system-x86_64: -net dump,id=foo,file=/eperm: -net dump: can't open /eperm qemu-system-x86_64: -net dump,id=foo,file=/eperm: Device 'dump' could not be initialized Convert net_init_tap() to Error. This suppresses the unwanted second message. Improve the error messages to include strerror(errno) where appropriate. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-id: 1431691143-1015-5-git-send-email-armbru@redhat.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Diffstat (limited to 'net/dump.c')
-rw-r--r--net/dump.c12
1 files changed, 6 insertions, 6 deletions
diff --git a/net/dump.c b/net/dump.c
index 214e88a768..02c8064be0 100644
--- a/net/dump.c
+++ b/net/dump.c
@@ -101,7 +101,8 @@ static NetClientInfo net_dump_info = {
};
static int net_dump_init(NetClientState *peer, const char *device,
- const char *name, const char *filename, int len)
+ const char *name, const char *filename, int len,
+ Error **errp)
{
struct pcap_file_hdr hdr;
NetClientState *nc;
@@ -111,7 +112,7 @@ static int net_dump_init(NetClientState *peer, const char *device,
fd = open(filename, O_CREAT | O_TRUNC | O_WRONLY | O_BINARY, 0644);
if (fd < 0) {
- error_report("-net dump: can't open %s", filename);
+ error_setg_errno(errp, errno, "-net dump: can't open %s", filename);
return -1;
}
@@ -124,7 +125,7 @@ static int net_dump_init(NetClientState *peer, const char *device,
hdr.linktype = 1;
if (write(fd, &hdr, sizeof(hdr)) < sizeof(hdr)) {
- error_report("-net dump write error: %s", strerror(errno));
+ error_setg_errno(errp, errno, "-net dump write error");
close(fd);
return -1;
}
@@ -148,7 +149,6 @@ static int net_dump_init(NetClientState *peer, const char *device,
int net_init_dump(const NetClientOptions *opts, const char *name,
NetClientState *peer, Error **errp)
{
- /* FIXME error_setg(errp, ...) on failure */
int len;
const char *file;
char def_file[128];
@@ -174,7 +174,7 @@ int net_init_dump(const NetClientOptions *opts, const char *name,
if (dump->has_len) {
if (dump->len > INT_MAX) {
- error_report("invalid length: %"PRIu64, dump->len);
+ error_setg(errp, "invalid length: %"PRIu64, dump->len);
return -1;
}
len = dump->len;
@@ -182,5 +182,5 @@ int net_init_dump(const NetClientOptions *opts, const char *name,
len = 65536;
}
- return net_dump_init(peer, "dump", name, file, len);
+ return net_dump_init(peer, "dump", name, file, len, errp);
}