From 4fcdf65ae2c00ae69f7625f26ed41f37d77b403c Mon Sep 17 00:00:00 2001 From: Markus Armbruster Date: Tue, 21 Feb 2017 21:14:05 +0100 Subject: util/cutils: Let qemu_strtosz*() optionally reject trailing crap Change the qemu_strtosz() & friends to return -EINVAL when @endptr is null and the conversion doesn't consume the string completely. Matches how qemu_strtol() & friends work. Only test_qemu_strtosz_simple() passes a null @endptr. No functional change there, because its conversion consumes the string. Simplify callers that use @endptr only to fail when it doesn't point to '\0' to pass a null @endptr instead. Cc: Dr. David Alan Gilbert Cc: Eduardo Habkost (maintainer:X86) Cc: Kevin Wolf (supporter:Block layer core) Cc: Max Reitz (supporter:Block layer core) Cc: qemu-block@nongnu.org (open list:Block layer core) Signed-off-by: Markus Armbruster Reviewed-by: Eric Blake Reviewed-by: Dr. David Alan Gilbert Message-Id: <1487708048-2131-22-git-send-email-armbru@redhat.com> --- hw/misc/ivshmem.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) (limited to 'hw/misc') diff --git a/hw/misc/ivshmem.c b/hw/misc/ivshmem.c index b3d9ed99dd..848bebc794 100644 --- a/hw/misc/ivshmem.c +++ b/hw/misc/ivshmem.c @@ -1267,10 +1267,8 @@ static void ivshmem_realize(PCIDevice *dev, Error **errp) if (s->sizearg == NULL) { s->legacy_size = 4 << 20; /* 4 MB default */ } else { - char *end; - int64_t size = qemu_strtosz_MiB(s->sizearg, &end); - if (size < 0 || (size_t)size != size || *end != '\0' - || !is_power_of_2(size)) { + int64_t size = qemu_strtosz_MiB(s->sizearg, NULL); + if (size < 0 || (size_t)size != size || !is_power_of_2(size)) { error_setg(errp, "Invalid size %s", s->sizearg); return; } -- cgit v1.2.1