From 502edf1df5e727cf88b19b634f60392652f35ddc Mon Sep 17 00:00:00 2001 From: Chuck Lever Date: Tue, 31 Aug 2010 15:25:35 -0400 Subject: [PATCH] libexport.a: Prepare to recognize IPv6 addresses in client_gettype() The current open-coded parsing logic in client_gettype() will be hard to modify to recognize IPv6 addresses. Use a more generic mechanism for detecting IP presentation addresses. IPv6 will be enabled automatically in client_gettype() when host_pton() is changed to support IPv6 addresses. Signed-off-by: Chuck Lever Signed-off-by: Steve Dickson --- support/export/client.c | 23 ++++++++++++++--------- 1 file changed, 14 insertions(+), 9 deletions(-) diff --git a/support/export/client.c b/support/export/client.c index 21001ce..3e797c9 100644 --- a/support/export/client.c +++ b/support/export/client.c @@ -602,7 +602,8 @@ client_check(const nfs_client *clp, const struct addrinfo *ai) int client_gettype(char *ident) { - char *sp; + struct addrinfo *ai; + char *sp; if (ident[0] == '\0' || strcmp(ident, "*")==0) return MCL_ANONYMOUS; @@ -622,12 +623,16 @@ client_gettype(char *ident) if (*sp == '\\' && sp[1]) sp++; } - /* check for N.N.N.N */ - sp = ident; - if(!isdigit(*sp) || strtoul(sp, &sp, 10) > 255 || *sp != '.') return MCL_FQDN; - sp++; if(!isdigit(*sp) || strtoul(sp, &sp, 10) > 255 || *sp != '.') return MCL_FQDN; - sp++; if(!isdigit(*sp) || strtoul(sp, &sp, 10) > 255 || *sp != '.') return MCL_FQDN; - sp++; if(!isdigit(*sp) || strtoul(sp, &sp, 10) > 255 || *sp != '\0') return MCL_FQDN; - /* we lie here a bit. but technically N.N.N.N == N.N.N.N/32 :) */ - return MCL_SUBNETWORK; + + /* + * Treat unadorned IP addresses as MCL_SUBNETWORK. + * Everything else is MCL_FQDN. + */ + ai = host_pton(ident); + if (ai != NULL) { + freeaddrinfo(ai); + return MCL_SUBNETWORK; + } + + return MCL_FQDN; } -- 2.39.2