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Date: Sun, 21 Oct 2012 02:52:21 +0200
From: Abdoulaye Walsimou GAYE <awg@...toolkit.org>
To: musl@...ts.openwall.com
Subject: Re: [PATCH 3/4] Import BSD functions defined in <netinet/ether.h>
from NetBSD
On 10/21/2012 02:42 AM, John Spencer wrote:
> On 10/20/2012 10:15 PM, Abdoulaye Walsimou Gaye wrote:
>> +/*
>> + * ether_aton():
>> + * This function converts an ASCII string of the same form and to a structure
>> + * containing the 6 octets of the address. It returns a pointer to a
>> + * static structure that is reused for each call.
>> + */
>> +struct ether_addr *ether_aton(const char *s)
>> +{
>> + static struct ether_addr n;
>> + unsigned int i[6];
>> +
>> + assert(s != NULL);
>> +
>> + if (sscanf(s, " %x:%x:%x:%x:%x:%x ",&i[0],&i[1],
>> + &i[2],&i[3],&i[4],&i[5]) == 6) {
>> + n.ether_addr_octet[0] = (unsigned char)i[0];
>> + n.ether_addr_octet[1] = (unsigned char)i[1];
>> + n.ether_addr_octet[2] = (unsigned char)i[2];
>> + n.ether_addr_octet[3] = (unsigned char)i[3];
>> + n.ether_addr_octet[4] = (unsigned char)i[4];
>> + n.ether_addr_octet[5] = (unsigned char)i[5];
>> + return&n;
>> + }
>> + return NULL;
>> +}
>
> why do you duplicate the code and not use simply the _r functions from [4/4] with the static buffer ?
> btw the usage of sscanf is both bloated and slow.
This was for record of the original code from NetBSD, before patching it in [4/4]
>
> anyway, i doubt it makes sense to add this crap; i never needed it for sabotage which is almost feature complete and compiles 250 packages.
I can not argue with this kind of comments.
Cheers,
AWG
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