From 1e68b2b2756fc3488ecbade5ad5f13302b3aaafc Mon Sep 17 00:00:00 2001 From: Jeff Layton Date: Thu, 11 Jun 2009 10:27:30 -0400 Subject: cifs: add new routine for converting AF_INET and AF_INET6 addrs ...to consolidate some logic used in more than one place. Signed-off-by: Jeff Layton Signed-off-by: Steve French --- fs/cifs/netmisc.c | 34 ++++++++++++++++++++++++++++++---- 1 file changed, 30 insertions(+), 4 deletions(-) (limited to 'fs/cifs/netmisc.c') diff --git a/fs/cifs/netmisc.c b/fs/cifs/netmisc.c index 32d6baa..00e6e35 100644 --- a/fs/cifs/netmisc.c +++ b/fs/cifs/netmisc.c @@ -133,10 +133,12 @@ static const struct smb_to_posix_error mapping_table_ERRHRD[] = { {0, 0} }; -/* Convert string containing dotted ip address to binary form */ -/* returns 0 if invalid address */ - -int +/* + * Convert a string containing text IPv4 or IPv6 address to binary form. + * + * Returns 0 on failure. + */ +static int cifs_inet_pton(const int address_family, const char *cp, void *dst) { int ret = 0; @@ -153,6 +155,30 @@ cifs_inet_pton(const int address_family, const char *cp, void *dst) return ret; } +/* + * Try to convert a string to an IPv4 address and then attempt to convert + * it to an IPv6 address if that fails. Set the family field if either + * succeeds. + * + * Returns 0 on failure. + */ +int +cifs_convert_address(char *src, void *dst) +{ + struct sockaddr_in *s4 = (struct sockaddr_in *) dst; + struct sockaddr_in6 *s6 = (Struct sockaddr_in6 *) dst; + + if (cifs_inet_pton(AF_INET, src, &s4->sin_addr.s_addr)) { + s4->sin_family = AF_INET; + return 1; + } else if (cifs_inet_pton(AF_INET6, src, &s6->sin6_addr.s6_addr)) { + s6->sin6_family = AF_INET6; + return 1; + } + + return 0; +} + /***************************************************************************** convert a NT status code to a dos class/code *****************************************************************************/ -- cgit v1.1