From f68785e72129ab643d6c793bd5a11bdf0010eff9 Mon Sep 17 00:00:00 2001
From: neilbrown <neilbrown>
Date: Thu, 3 Jul 2003 01:28:13 +0000
Subject: [PATCH] Fixes to make unexporting and exporting with wildcards work
 more sensibly.

---
 ChangeLog                  | 13 +++++++++++++
 support/export/export.c    |  9 +++------
 support/export/rmtab.c     | 24 ++++++++++++------------
 support/include/exportfs.h |  2 +-
 utils/exportfs/exportfs.c  | 12 ++++++++----
 5 files changed, 37 insertions(+), 23 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index 0f490c1..3b93636 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,16 @@
+2003-07-03 NeilBrown <neilb@cse.unsw.edu.au>
+	fumihiko kakuma <kakmy@mvh.biglobe.ne.jp>
+
+	* utils/exportfs/exportfs.c(unexportfs): improve host comparison
+	so as to only export the wildcard exports that were asked for.
+	* support/export/export.c(export_allowed): changed to return the
+	nfs_export rather than a "struct exportent", as m_changed is
+	needed by called
+	* support/export/rmtab.c(rmtab_read): modified to deal with
+	interface change for export_allowed(), and enhanced to preserve
+	m_changed flag when a wild-card export causes the creation of
+	a non-wildcard export.
+	
 2003-07-02 NeilBrown <neilb@cse.unsw.edu.au>
 	Steve Dickson <SteveD@redhat.com>
 
diff --git a/support/export/export.c b/support/export/export.c
index eef2c3b..eedbb75 100644
--- a/support/export/export.c
+++ b/support/export/export.c
@@ -172,10 +172,9 @@ export_allowed_internal (struct hostent *hp, char *path)
 	return NULL;
 }
 
-struct exportent *
+nfs_export *
 export_allowed(struct hostent *hp, char *path)
 {
-	static struct exportent	ee;
 	nfs_export		*exp;
 	char			epath[MAXPATHLEN+1];
 	char			*p = NULL;
@@ -188,10 +187,8 @@ export_allowed(struct hostent *hp, char *path)
 	/* Try the longest matching exported pathname. */
 	while (1) {
 		exp = export_allowed_internal (hp, epath);
-		if (exp) {
-			dupexportent(&ee, &exp->m_export);
-			return &ee;
-		}
+		if (exp)
+			return exp;
 		/* We have to treat the root, "/", specially. */
 		if (p == &epath[1]) break;
 		p = strrchr(epath, '/');
diff --git a/support/export/rmtab.c b/support/export/rmtab.c
index 3c55267..58e59f4 100644
--- a/support/export/rmtab.c
+++ b/support/export/rmtab.c
@@ -25,7 +25,6 @@ rmtab_read(void)
 
 	setrmtabent("r");
 	while ((rep = getrmtabent(1, NULL)) != NULL) {
-		struct exportent	*xp;
 		struct hostent		*hp = NULL;
 		int			htype;
 		
@@ -33,22 +32,23 @@ rmtab_read(void)
 		if (htype == MCL_FQDN
 		    && (hp = gethostbyname (rep->r_client))
 		    && (hp = hostent_dup (hp),
-			xp = export_allowed (hp, rep->r_path))) {
+			exp = export_allowed (hp, rep->r_path))) {
 			/* see if the entry already exists, otherwise this was an instantiated
 			 * wild card, and we must add it
 			 */
-			exp = export_lookup(rep->r_client, xp->e_path, 0);
-			if (!exp) {
-				strncpy (xp->e_hostname, rep->r_client,
-					 sizeof (xp->e_hostname) - 1);
-				xp->e_hostname[sizeof (xp->e_hostname) -1] = '\0';
-				exp = export_create(xp, 0);
+			nfs_export *exp2 = export_lookup(rep->r_client,
+							exp->m_export.e_path, 0);
+			if (!exp2) {
+				struct exportent ee;
+				dupexportent(&ee, &exp->m_export);
+				strncpy (ee.e_hostname, rep->r_client,
+					 sizeof (ee.e_hostname) - 1);
+				ee.e_hostname[sizeof (ee.e_hostname) -1] = '\0';
+				exp2 = export_create(&ee, 0);
+				exp2->m_changed = exp->m_changed;
 			}
 			free (hp);
-
-			if (!exp)
-				continue;
-			exp->m_mayexport = 1;
+			exp2->m_mayexport = 1;
 		} else if (hp) /* export_allowed failed */
 			free(hp);
 	}
diff --git a/support/include/exportfs.h b/support/include/exportfs.h
index dfd51f2..bf5bb67 100644
--- a/support/include/exportfs.h
+++ b/support/include/exportfs.h
@@ -62,7 +62,7 @@ void				export_add(nfs_export *);
 void				export_reset(nfs_export *);
 nfs_export *			export_lookup(char *hname, char *path, int caconical);
 nfs_export *			export_find(struct hostent *, char *path);
-struct exportent *		export_allowed(struct hostent *, char *path);
+nfs_export *			export_allowed(struct hostent *, char *path);
 nfs_export *			export_create(struct exportent *, int canonical);
 nfs_export *			export_dup(nfs_export *, struct hostent *);
 void				export_freeall(void);
diff --git a/utils/exportfs/exportfs.c b/utils/exportfs/exportfs.c
index bd48e98..ab8a4a2 100644
--- a/utils/exportfs/exportfs.c
+++ b/utils/exportfs/exportfs.c
@@ -283,10 +283,14 @@ unexportfs(char *arg, int verbose)
 	for (exp = exportlist[htype]; exp; exp = exp->m_next) {
 		if (path && strcmp(path, exp->m_export.e_path))
 			continue;
-		if (htype != exp->m_client->m_type
-		    || (htype == MCL_FQDN
-		        && !matchhostname(exp->m_export.e_hostname,
-					  hname)))
+		if (htype != exp->m_client->m_type)
+			continue;
+		if (htype == MCL_FQDN
+		    && !matchhostname(exp->m_export.e_hostname,
+					  hname))
+			continue;
+		if (htype != MCL_FQDN
+		    && strcasecmp(exp->m_export.e_hostname, hname))
 			continue;
 		if (verbose) {
 #if 0
-- 
2.39.5