File 0001-exportfs-Do-not-fail-on-empty-exports-file.patch of Package nfs-utils.33226

From e725def62c73b4aa269fefc4c0d96abb41927fcb Mon Sep 17 00:00:00 2001
From: Steve Dickson <steved@redhat.com>
Date: Mon, 17 Nov 2014 13:17:20 -0500
Subject: [PATCH] exportfs: Do not fail on empty exports file.

Commit 076dd80 introduced a regression that causes
exportfs to fail when there is an empty /etc/exports
file. A empty /etc/exports file is valid and should
not cause exportfs to fail.

Signed-off-by: Steve Dickson <steved@redhat.com>
Signed-off-by: Steve Dickson <steved@redhat.com>
---
 support/export/export.c        |   17 ++++++++++++-----
 support/include/exportfs.h     |    4 ++--
 systemd/nfs-server-generator.c |    4 ++--
 utils/exportfs/exportfs.c      |    4 ++--
 4 files changed, 18 insertions(+), 11 deletions(-)

--- a/support/export/export.c
+++ b/support/export/export.c
@@ -81,12 +81,13 @@ export_avoid_host_lookup(int i)
  *
  */
 void
-export_read(char *fname)
+export_read(char *fname, int verbose)
 {
 	struct exportent	*eep;
 	nfs_export		*exp;
 
 	int volumes = 0;
+	int bad_entry = 0;
 
 	setexportent(fname, "r");
 	while ((eep = getexportent(0,1)) != NULL) {
@@ -95,19 +96,25 @@ export_read(char *fname)
 			exp = export_create(eep, assume_canonical);
 			if (exp)
 				volumes++;
+			else
+				bad_entry++;
 		}
 		else
 			warn_duplicated_exports(exp, eep);
 	}
 	endexportent();
-	if (volumes == 0)
-		xlog(L_WARNING, "No file systems exported!");
+	if (volumes == 0) {
+		if (bad_entry > 0)
+			xlog(L_WARNING, "No file systems exported!");
+		else if (verbose)
+			xlog(L_WARNING, "No file systems exported!");
+	}
 }
 
 /* Based on mnt_table_parse_dir() in
    util-linux-ng/shlibs/mount/src/tab_parse.c */
 void
-export_d_read(const char *dname)
+export_d_read(const char *dname, int verbose)
 {
 	int n = 0, i;
 	struct dirent **namelist = NULL;
@@ -150,7 +157,7 @@ export_d_read(const char *dname)
 			continue;
 		}
 
-		export_read(fname);
+		export_read(fname, verbose);
 	}
 
 	for (i = 0; i < n; i++)
--- a/support/include/exportfs.h
+++ b/support/include/exportfs.h
@@ -134,8 +134,8 @@ int 				client_member(const char *client
 						const char *name);
 
 void				export_avoid_host_lookup(int i);
-void				export_read(char *fname);
-void				export_d_read(const char *dname);
+void				export_read(char *fname, int verbose);
+void				export_d_read(const char *dname, int verbose);
 void				export_reset(nfs_export *);
 nfs_export *			export_lookup(char *hname, char *path, int caconical);
 nfs_export *			export_find(const struct addrinfo *ai,
--- a/systemd/nfs-server-generator.c
+++ b/systemd/nfs-server-generator.c
@@ -128,8 +128,8 @@ int main(int argc, char *argv[])
 	path = malloc(strlen(argv[1]) + sizeof(dirbase) + sizeof(filebase));
 	if (!path)
 		exit(2);
-	export_read(_PATH_EXPORTS);
-	export_d_read(_PATH_EXPORTS_D);
+	export_read(_PATH_EXPORTS, 0);
+	export_d_read(_PATH_EXPORTS_D, 0);
 
 	strcat(strcpy(path, argv[1]), dirbase);
 	mkdir(path, 0755);
--- a/utils/exportfs/exportfs.c
+++ b/utils/exportfs/exportfs.c
@@ -187,8 +187,8 @@ main(int argc, char **argv)
 			 * to be reliably run before the network is fully up.
 			 */
 			export_avoid_host_lookup(1);
-		export_read(_PATH_EXPORTS);
-		export_d_read(_PATH_EXPORTS_D);
+		export_read(_PATH_EXPORTS, f_verbose);
+		export_d_read(_PATH_EXPORTS_D, f_verbose);
 	}
 	if (f_export) {
 		if (f_all)