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[PATCH 4/5] dump: Improve some dump-guest-memory error messages
From: |
Markus Armbruster |
Subject: |
[PATCH 4/5] dump: Improve some dump-guest-memory error messages |
Date: |
Mon, 30 Oct 2023 14:37:11 +0100 |
Zero @length is rejected with "Invalid parameter 'length'". Improve
to "Parameter 'length' expects a non-zero length".
@protocol values not starting with "fd:" or "file:" are rejected with
"Invalid parameter 'protocol'". Improve to "parameter 'protocol' must
start with 'file:' or 'fd:'".
While there, make the conditional checking @protocol a little more
obvious.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
---
dump/dump.c | 16 +++++++---------
1 file changed, 7 insertions(+), 9 deletions(-)
diff --git a/dump/dump.c b/dump/dump.c
index a5e9a06ef1..d888e4bd3c 100644
--- a/dump/dump.c
+++ b/dump/dump.c
@@ -1812,7 +1812,8 @@ static void dump_init(DumpState *s, int fd, bool
has_format,
s->fd = fd;
if (has_filter && !length) {
- error_setg(errp, QERR_INVALID_PARAMETER, "length");
+ error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "length",
+ "a non-zero size");
goto cleanup;
}
s->filter_area_begin = begin;
@@ -2072,7 +2073,7 @@ void qmp_dump_guest_memory(bool paging, const char
*protocol,
{
ERRP_GUARD();
const char *p;
- int fd = -1;
+ int fd;
DumpState *s;
bool detach_p = false;
@@ -2135,18 +2136,15 @@ void qmp_dump_guest_memory(bool paging, const char
*protocol,
if (fd == -1) {
return;
}
- }
-
- if (strstart(protocol, "file:", &p)) {
+ } else if (strstart(protocol, "file:", &p)) {
fd = qemu_open_old(p, O_WRONLY | O_CREAT | O_TRUNC | O_BINARY,
S_IRUSR);
if (fd < 0) {
error_setg_file_open(errp, errno, p);
return;
}
- }
-
- if (fd == -1) {
- error_setg(errp, QERR_INVALID_PARAMETER, "protocol");
+ } else {
+ error_setg(errp,
+ "parameter 'protocol' must start with 'file:' or 'fd:'");
return;
}
--
2.41.0