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util/cutils: Return qemu_strtosz*() error and value separately

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This makes qemu_strtosz(), qemu_strtosz_mebi() and
qemu_strtosz_metric() similar to qemu_strtoi64(), except negative
values are rejected.

Cc: Dr. David Alan Gilbert <dgilbert@redhat.com>
Cc: Eduardo Habkost <ehabkost@redhat.com> (maintainer:X86)
Cc: Kevin Wolf <kwolf@redhat.com> (supporter:Block layer core)
Cc: Max Reitz <mreitz@redhat.com> (supporter:Block layer core)
Cc: qemu-block@nongnu.org (open list:Block layer core)
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Message-Id: <1487708048-2131-23-git-send-email-armbru@redhat.com>
This commit is contained in:
Markus Armbruster 2017-02-21 21:14:06 +01:00
parent 4fcdf65ae2
commit f17fd4fdf0
10 changed files with 119 additions and 77 deletions
Download patch file Download diff file Expand all files Collapse all files

5
qapi/opts-visitor.c
View file

@ -482,14 +482,15 @@ opts_type_size(Visitor *v, const char *name, uint64_t *obj, Error **errp)
OptsVisitor *ov = to_ov(v);
const QemuOpt *opt;
int64_t val;
int err;
opt = lookup_scalar(ov, name, errp);
if (!opt) {
return;
}
val = qemu_strtosz(opt->str ? opt->str : "", NULL);
if (val < 0) {
err = qemu_strtosz(opt->str ? opt->str : "", NULL, &val);
if (err < 0) {
error_setg(errp, QERR_INVALID_PARAMETER_VALUE, opt->name,
"a size value representible as a non-negative int64");
return;