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networking: code shrink

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function                                             old     new   delta
in_ether                                               -     124    +124
hexchar2int                                           42       -     -42
ifconfig_main                                       1237    1106    -131
ether_input                                          141       -    -141
------------------------------------------------------------------------------
(add/remove: 2/2 grow/shrink: 0/1 up/down: 124/-314)         Total: -190 bytes

Signed-off-by: Bartosz Golaszewski <bartekgola@gmail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Bartosz Golaszewski
2013-07-25 04:39:04 +02:00
committed by Denys Vlasenko
parent b855460adc
commit c19be75d57
5 changed files with 60 additions and 99 deletions
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43
networking/ifconfig.c
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@@ -265,49 +265,6 @@ static const struct options OptArray[] = {
{ NULL, 0, ARG_HOSTNAME, (IFF_UP | IFF_RUNNING) }
};
#if ENABLE_FEATURE_IFCONFIG_HW
/* Input an Ethernet address and convert to binary. */
static int in_ether(const char *bufp, struct sockaddr *sap)
{
char *ptr;
int i, j;
unsigned char val;
unsigned char c;
sap->sa_family = ARPHRD_ETHER;
ptr = (char *) sap->sa_data;
i = 0;
do {
j = val = 0;
/* We might get a semicolon here - not required. */
if (i && (*bufp == ':')) {
bufp++;
}
do {
c = *bufp;
if (((unsigned char)(c - '0')) <= 9) {
c -= '0';
} else if ((unsigned char)((c|0x20) - 'a') <= 5) {
c = (unsigned char)((c|0x20) - 'a') + 10;
} else if (j && (c == ':' || c == 0)) {
break;
} else {
return -1;
}
++bufp;
val <<= 4;
val += c;
} while (++j < 2);
*ptr++ = val;
} while (++i < ETH_ALEN);
return *bufp; /* Error if we don't end at end of string. */
}
#endif
int ifconfig_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
int ifconfig_main(int argc UNUSED_PARAM, char **argv)
{