nfs: allow hostnames with dashes in exports/netgroups files

Hostnames with dashes (like "vagrant-testVM") are not correctly parsed
when reading the exports/netgroups files. This bacomes obvious when
running ./run-tests-in-vagrant.sh because it causes
tests/basic/mount-nfs-auth.t and tests/basic/netgroup_parsing.t to fail.

The regex for hostname (in exports) and the entry and hostname
(netgroups) parsing does not include the "-" sign, and hence the
hostnames are splitted at it.

Cherry picked from commit e5221d288e41d29d89d52f8deab657d2285a852c:
> BUG: 1350237
> Change-Id: I38146a283561e1fa386cc841c43fd3b1e30a87ad
> Signed-off-by: Niels de Vos <ndevos@redhat.com>
> Reviewed-on: http://review.gluster.org/14809
> Smoke: Gluster Build System <jenkins@build.gluster.org>
> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
> CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
> Reviewed-by: Jeff Darcy <jdarcy@redhat.com>

Change-Id: I38146a283561e1fa386cc841c43fd3b1e30a87ad
BUG: 1357835
Signed-off-by: Niels de Vos <ndevos@redhat.com>
Reviewed-on: http://review.gluster.org/14956
CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
Smoke: Gluster Build System <jenkins@build.gluster.org>
Reviewed-by: jiffin tony Thottan <jthottan@redhat.com>

1 files changed, 10 insertions, 0 deletions

diff --git a/xlators/nfs/server/src/exports.c b/xlators/nfs/server/src/exports.c
index b000b7e8118..83aec254040 100644
--- a/xlators/nfs/server/src/exports.c
+++ b/xlators/nfs/server/src/exports.c
@@ -753,6 +753,8 @@ __exp_line_ng_host_str_parse (char *str, struct export_item **exp_item)
         item_name = gf_strdup (str);
         GF_CHECK_ALLOC (item_name, ret, out);
 
+        gf_msg_trace (GF_EXP, 0, "found hostname/netgroup: %s", item_name);
+
         /* Initialize an export item for this */
         item = _export_item_init ();
         GF_CHECK_ALLOC (item, ret, free_and_out);
@@ -832,6 +834,8 @@ __exp_line_ng_parse (const char *line, dict_t **ng_dict)
                 goto out;
         }
 
+        gf_msg_trace (GF_EXP, 0, "parsing line: %s", line);
+
         while ((strmatch = parser_get_next_match (netgroup_parser))) {
                 if (!netgroups) {
                         /* Allocate a new dict to store the netgroups. */
@@ -842,6 +846,8 @@ __exp_line_ng_parse (const char *line, dict_t **ng_dict)
                         }
                 }
 
+                gf_msg_trace (GF_EXP, 0, "parsing netgroup: %s", strmatch);
+
                 ret = __exp_line_ng_host_str_parse (strmatch, &exp_ng);
 
                 if (ret != 0) {
@@ -927,6 +933,8 @@ __exp_line_host_parse (const char *line, dict_t **host_dict)
                 goto out;
         }
 
+        gf_msg_trace (GF_EXP, 0, "parsing line: %s", line);
+
         while ((strmatch = parser_get_next_match (hostname_parser))) {
                 if (!hosts) {
                         /* Allocate a new dictto store the netgroups. */
@@ -934,6 +942,8 @@ __exp_line_host_parse (const char *line, dict_t **host_dict)
                         GF_CHECK_ALLOC (hosts, ret, free_and_out);
                 }
 
+                gf_msg_trace (GF_EXP, 0, "parsing hostname: %s", strmatch);
+
                 ret = __exp_line_ng_host_str_parse (strmatch, &exp_host);
 
                 if (ret != 0) {