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Re: [Qemu-devel] [PATCH v2 2/6] tests/vhost-user-bridge: Fix misuse of i
From: |
Thomas Huth |
Subject: |
Re: [Qemu-devel] [PATCH v2 2/6] tests/vhost-user-bridge: Fix misuse of isdigit() |
Date: |
Tue, 21 May 2019 09:52:57 +0200 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.6.1 |
On 14/05/2019 20.41, Thomas Huth wrote:
> On 14/05/2019 20.03, Markus Armbruster wrote:
>> vubr_set_host() passes char values to isdigit(). Undefined behavior
>> when the value is negative.
>>
>> Fix by using qemu_isdigit() instead.
>>
>> Signed-off-by: Markus Armbruster <address@hidden>
>> ---
>> tests/vhost-user-bridge.c | 2 +-
>> 1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/tests/vhost-user-bridge.c b/tests/vhost-user-bridge.c
>> index 0033b61f2e..d70b107ebc 100644
>> --- a/tests/vhost-user-bridge.c
>> +++ b/tests/vhost-user-bridge.c
>> @@ -645,7 +645,7 @@ vubr_host_notifier_setup(VubrDev *dev)
>> static void
>> vubr_set_host(struct sockaddr_in *saddr, const char *host)
>> {
>> - if (isdigit(host[0])) {
>> + if (qemu_isdigit(host[0])) {
>> if (!inet_aton(host, &saddr->sin_addr)) {
>> fprintf(stderr, "inet_aton() failed.\n");
>> exit(1);
>
> Reviewed-by: Thomas Huth <address@hidden>
By the way, how do you compile / run this test? The original commit
message say one should compile it with "make tests/vhost-user-bridge"
but that does not work for me:
$ make tests/vhost-user-bridge
cc tests/vhost-user-bridge.c -o tests/vhost-user-bridge
tests/vhost-user-bridge.c:32:24: fatal error: qemu/osdep.h: No such file
or directory
Thomas
- [Qemu-devel] [PATCH v2 0/6] Fix misuse of ctype.h functions, Markus Armbruster, 2019/05/14
- [Qemu-devel] [PATCH v2 1/6] qemu-bridge-helper: Fix misuse of isspace(), Markus Armbruster, 2019/05/14
- [Qemu-devel] [PATCH v2 3/6] gdbstub: Reject invalid RLE repeat counts, Markus Armbruster, 2019/05/14
- [Qemu-devel] [PATCH v2 5/6] pc-bios/s390-ccw: Clean up harmless misuse of isdigit(), Markus Armbruster, 2019/05/14
- [Qemu-devel] [PATCH v2 6/6] cutils: Simplify how parse_uint() checks for whitespace, Markus Armbruster, 2019/05/14
- Re: [Qemu-devel] [PATCH v2 0/6] Fix misuse of ctype.h functions, Markus Armbruster, 2019/05/22