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ceph: fix printing of ipv6 addrs

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The buffer was too small.  Make it bigger, use snprintf(), put brackets
around the ipv6 address to avoid mixing it up with the :port, and use the
ever-so-handy %pI[46] formats.

Signed-off-by: Sage Weil <sage@newdream.net>
This commit is contained in:
Sage Weil 2010-07-08 10:47:16 -07:00
parent b0bbb0be8f
commit d06dbaf6c2
1 changed files with 6 additions and 18 deletions
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24
fs/ceph/messenger.c
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@ -43,7 +43,8 @@ static void ceph_fault(struct ceph_connection *con);
* nicely render a sockaddr as a string.
*/
#define MAX_ADDR_STR 20
static char addr_str[MAX_ADDR_STR][40];
#define MAX_ADDR_STR_LEN 60
static char addr_str[MAX_ADDR_STR][MAX_ADDR_STR_LEN];
static DEFINE_SPINLOCK(addr_str_lock);
static int last_addr_str;
@ -52,7 +53,6 @@ const char *pr_addr(const struct sockaddr_storage *ss)
int i;
char *s;
struct sockaddr_in *in4 = (void *)ss;
unsigned char *quad = (void *)&in4->sin_addr.s_addr;
struct sockaddr_in6 *in6 = (void *)ss;
spin_lock(&addr_str_lock);
@ -64,25 +64,13 @@ const char *pr_addr(const struct sockaddr_storage *ss)
switch (ss->ss_family) {
case AF_INET:
sprintf(s, "%u.%u.%u.%u:%u",
(unsigned int)quad[0],
(unsigned int)quad[1],
(unsigned int)quad[2],
(unsigned int)quad[3],
(unsigned int)ntohs(in4->sin_port));
snprintf(s, MAX_ADDR_STR_LEN, "%pI4:%u", &in4->sin_addr,
(unsigned int)ntohs(in4->sin_port));
break;
case AF_INET6:
sprintf(s, "%04x:%04x:%04x:%04x:%04x:%04x:%04x:%04x:%u",
in6->sin6_addr.s6_addr16[0],
in6->sin6_addr.s6_addr16[1],
in6->sin6_addr.s6_addr16[2],
in6->sin6_addr.s6_addr16[3],
in6->sin6_addr.s6_addr16[4],
in6->sin6_addr.s6_addr16[5],
in6->sin6_addr.s6_addr16[6],
in6->sin6_addr.s6_addr16[7],
(unsigned int)ntohs(in6->sin6_port));
snprintf(s, MAX_ADDR_STR_LEN, "[%pI6c]:%u", &in6->sin6_addr,
(unsigned int)ntohs(in6->sin6_port));
break;
default: