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printk: ipv4 address digits printed in reverse order

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put_dec_trunc prints the digits in reverse order and is reversed
inside number(). Continue using put_dec_trunc, but reverse each quad
in ip4_addr_string.

[Noticed by Julius Volz]

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Harvey Harrison 2008-11-03 17:09:55 -08:00 committed by David S. Miller
parent 48148938b4
commit b9ac99855d
1 changed files with 6 additions and 2 deletions
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8
lib/vsprintf.c
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@ -620,11 +620,15 @@ static char *ip4_addr_string(char *buf, char *end, u8 *addr, int field_width,
int precision, int flags)
{
char ip4_addr[4 * 4]; /* (4 * 3 decimal digits), 3 dots and trailing zero */
char temp[3]; /* hold each IP quad in reverse order */
char *p = ip4_addr;
int i;
int i, digits;
for (i = 0; i < 4; i++) {
p = put_dec_trunc(p, addr[i]);
digits = put_dec_trunc(temp, addr[i]) - temp;
/* reverse the digits in the quad */
while (digits--)
*p++ = temp[digits];
if (i != 3)
*p++ = '.';
}