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| author | Jeff Layton <jlayton@redhat.com> | 2006-12-18 15:44:11 -0500 |
|---|---|---|
| committer | Neil Brown <neilb@suse.de> | 2006-12-19 09:31:22 +1100 |
| commit | 5d5d8dc1f093f73825b5c2fc814f0a9a565bd384 (patch) | |
| tree | 038ba32fa564483813e310127ed88e34f825f5f8 /utils/mountd/rmtab.c | |
| parent | 9e1aa7b9a04776bd43eb75bef50a53f41e17b813 (diff) | |
| download | nfs-utils-5d5d8dc1f093f73825b5c2fc814f0a9a565bd384.tar.gz nfs-utils-5d5d8dc1f093f73825b5c2fc814f0a9a565bd384.tar.xz nfs-utils-5d5d8dc1f093f73825b5c2fc814f0a9a565bd384.zip | |
add -r flag to make mountd do reverse resolve of ipaddress on the fly
For those that want "traditional" showmount -a behavior from their mountd
(hostname:/path instead of ipaddr:/path). This patch adds a '-r' flag that
does a reverse-resolve for each IP address listed in the rmtab when
a dump operation is called.
Probably not a good idea for those concerned about performance, but since it's
not the default option, I don't see it being an issue.
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Neil Brown <neilb@suse.de>
Diffstat (limited to 'utils/mountd/rmtab.c')
| -rw-r--r-- | utils/mountd/rmtab.c | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/utils/mountd/rmtab.c b/utils/mountd/rmtab.c index f641a96..e8aff5a 100644 --- a/utils/mountd/rmtab.c +++ b/utils/mountd/rmtab.c @@ -25,6 +25,8 @@ #include <limits.h> /* PATH_MAX */ +extern int reverse_resolve; + /* If new path is a link do not destroy it but place the * file where the link points. */ @@ -185,6 +187,8 @@ mountlist_list(void) struct rmtabent *rep; struct stat stb; int lockid; + struct in_addr addr; + struct hostent *he; if ((lockid = xflock(_PATH_RMTAB, "r")) < 0) return NULL; @@ -204,8 +208,15 @@ mountlist_list(void) setrmtabent("r"); while ((rep = getrmtabent(1, NULL)) != NULL) { m = (mountlist) xmalloc(sizeof(*m)); - m->ml_hostname = xstrdup(rep->r_client); - m->ml_directory = xstrdup(rep->r_path); + + if (reverse_resolve && + inet_aton((const char *) rep->r_client, &addr) && + (he = gethostbyaddr(&addr, sizeof(addr), AF_INET))) + m->ml_hostname = xstrdup(he->h_name); + else + m->ml_hostname = xstrdup(rep->r_client); + + m->ml_directory = xstrdup(rep->r_path); m->ml_next = mlist; mlist = m; } |