From: Joe Perches Date: Thu, 9 Jun 2011 18:23:37 +0000 (-0700) Subject: vsprintf: Update %pI6c to not compress a single 0 X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=29cf519ee086686e5f0fc91cbb2d601dd1190f9c;p=GitHub%2Fexynos8895%2Fandroid_kernel_samsung_universal8895.git vsprintf: Update %pI6c to not compress a single 0 RFC 5952 (http://tools.ietf.org/html/rfc5952) mandates that 2 or more consecutive 0's are required before using :: compression. Update ip6_compressed_string to match the RFC and update the http reference as well. Signed-off-by: Joe Perches Signed-off-by: Linus Torvalds --- diff --git a/lib/vsprintf.c b/lib/vsprintf.c index c11205688fb4..4365df31a1d5 100644 --- a/lib/vsprintf.c +++ b/lib/vsprintf.c @@ -666,6 +666,8 @@ char *ip6_compressed_string(char *p, const char *addr) colonpos = i; } } + if (longest == 1) /* don't compress a single 0 */ + colonpos = -1; /* emit address */ for (i = 0; i < range; i++) { @@ -826,7 +828,7 @@ int kptr_restrict __read_mostly; * IPv4 uses dot-separated decimal with leading 0's (010.123.045.006) * - '[Ii]4[hnbl]' IPv4 addresses in host, network, big or little endian order * - 'I6c' for IPv6 addresses printed as specified by - * http://tools.ietf.org/html/draft-ietf-6man-text-addr-representation-00 + * http://tools.ietf.org/html/rfc5952 * - 'U' For a 16 byte UUID/GUID, it prints the UUID/GUID in the form * "xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx" * Options for %pU are: