[PATCH:libSM 2/8] Move and rename temp[4] definition to reduce confusion with temp[256]
Mark Kettenis
mark.kettenis at xs4all.nl
Tue Dec 6 01:10:55 PST 2011
> From: Alan Coopersmith <alan.coopersmith at oracle.com>
> Date: Mon, 5 Dec 2011 20:06:15 -0800
>
> Both variables were locals in different scope levels of the same
> function, leading to both confusing code and gcc -Wshadow warnings:
>
> sm_genid.c: In function 'SmsGenerateClientID':
> sm_genid.c:160:10: warning: declaration of 'temp' shadows a previous local
>
> Signed-off-by: Alan Coopersmith <alan.coopersmith at oracle.com>
One small nit; see below.
> ---
> src/sm_genid.c | 11 ++++++-----
> 1 files changed, 6 insertions(+), 5 deletions(-)
>
> diff --git a/src/sm_genid.c b/src/sm_genid.c
> index a8161ff..c46a0c5 100644
> --- a/src/sm_genid.c
> +++ b/src/sm_genid.c
> @@ -157,7 +157,7 @@ SmsGenerateClientID(SmsConn smsConn)
>
> {
> char* inet_addr;
> - char temp[4], *ptr1, *ptr2;
> + char *ptr1;
> unsigned char decimal[4];
> int i, len;
> struct in_addr *haddr = NULL;
> @@ -204,7 +204,8 @@ SmsGenerateClientID(SmsConn smsConn)
> inet_addr = inet_ntoa (*haddr);
> for (i = 0, ptr1 = inet_addr; i < 3; i++)
> {
> - ptr2 = strchr (ptr1, '.');
> + char temp4[4];
> + char *ptr2 = strchr (ptr1, '.');
I know it's a matter of style, but I'd like to see a blank line here
to make it obvious where the variable declarations end.
> len = ptr2 - ptr1;
> if (!ptr2 || len > 3) {
> # if defined(IPv6) && defined(AF_INET6)
> @@ -212,9 +213,9 @@ SmsGenerateClientID(SmsConn smsConn)
> # endif
> return (NULL);
> }
> - strncpy (temp, ptr1, len);
> - temp[len] = '\0';
> - decimal[i] = atoi (temp);
> + strncpy (temp4, ptr1, len);
> + temp4[len] = '\0';
> + decimal[i] = atoi (temp4);
> ptr1 = ptr2 + 1;
> }
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