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| author | Harvey Harrison <harvey.harrison@gmail.com> | 2008-11-04 04:09:55 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2008-11-04 04:09:55 +0300 |
| commit | b9ac99855dcc0316ba2feee2b0d3e578f8315b75 (patch) | |
| tree | 7ca8a4864a3a8f29bc53ab705954c7e7220d2686 /lib/vsprintf.c | |
| parent | 48148938b494cd57029a43c758e9972307a31d2a (diff) | |
| download | linux-b9ac99855dcc0316ba2feee2b0d3e578f8315b75.tar.xz | |
printk: ipv4 address digits printed in reverse order
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>
Diffstat (limited to 'lib/vsprintf.c')
| -rw-r--r-- | lib/vsprintf.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/lib/vsprintf.c b/lib/vsprintf.c index dd7cc7fa3e77..6897724ff5df 100644 --- a/lib/vsprintf.c +++ b/lib/vsprintf.c @@ -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++ = '.'; } |