From: Zhigang Wang <zhigang.x.wang@oracle.com>
To: xen-devel@lists.xenproject.org
Cc: Ian Jackson <ian.jackson@eu.citrix.com>,
Ian Campbell <ian.campbell@citrix.com>,
Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Subject: Re: [PATCH] tools/xenstat: handle network interface name in uppercase.
Date: Tue, 19 Apr 2016 14:03:13 -0700 (PDT) [thread overview]
Message-ID: <57169D11.9090305@oracle.com> (raw)
In-Reply-To: <1457727481-21859-1-git-send-email-zhigang.x.wang@oracle.com>
Could anyone have a look at this patch?
Thanks,
Zhigang
On 03/11/2016 03:18 PM, Zhigang Wang wrote:
> xentop will segmentation fault in this case:
>
> # ip link set eth1 down
> # ip link set eth1 name ETH
> # xentop
>
> This patch will let xentop to handle all uppercase network interface name.
>
> Signed-off-by: Zhigang Wang <zhigang.x.wang@oracle.com>
> ---
> tools/xenstat/libxenstat/src/xenstat_linux.c | 8 ++++++--
> 1 file changed, 6 insertions(+), 2 deletions(-)
>
> diff --git a/tools/xenstat/libxenstat/src/xenstat_linux.c b/tools/xenstat/libxenstat/src/xenstat_linux.c
> index 931b24e..d33eca1 100644
> --- a/tools/xenstat/libxenstat/src/xenstat_linux.c
> +++ b/tools/xenstat/libxenstat/src/xenstat_linux.c
> @@ -101,6 +101,7 @@ int parseNetDevLine(char *line, char *iface, unsigned long long *rxBytes, unsign
> /* Temporary/helper variables */
> int ret;
> char *tmp;
> + char *tmp2;
> int i = 0, x = 0, col = 0;
> regex_t r;
> regmatch_t matches[19];
> @@ -221,8 +222,11 @@ int parseNetDevLine(char *line, char *iface, unsigned long long *rxBytes, unsign
> }
> else
> /* There were errors when parsing this directly in RE. strpbrk() helps */
> - if (iface != NULL)
> - strcpy(iface, strpbrk(tmp, "abcdefghijklmnopqrstvuwxyz0123456789"));
> + if (iface != NULL) {
> + tmp2 = strpbrk(tmp, "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789");
> + if (tmp2 != NULL)
> + strcpy(iface, tmp2);
> + }
>
> memset(tmp, 0, matches[i].rm_eo - matches[i].rm_so);
> }
>
_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xen.org
http://lists.xen.org/xen-devel
next prev parent reply other threads:[~2016-04-19 21:04 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-03-11 20:18 [PATCH] tools/xenstat: handle network interface name in uppercase Zhigang Wang
2016-04-19 21:03 ` Zhigang Wang [this message]
2016-04-20 11:39 ` Wei Liu
2016-04-20 14:16 ` Zhigang Wang
2016-04-20 15:12 ` Wei Liu
2016-04-20 18:07 ` Wei Liu
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=57169D11.9090305@oracle.com \
--to=zhigang.x.wang@oracle.com \
--cc=ian.campbell@citrix.com \
--cc=ian.jackson@eu.citrix.com \
--cc=stefano.stabellini@eu.citrix.com \
--cc=xen-devel@lists.xenproject.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).