[PATCH v1 3/3] Finish port of junction support to nfs-utils

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CONFIG_JUNCTION was defined for use in Makefiles, but that does not
provide a -DCONFIG_JUNCTION on the compiler command line. Add logic
to configure.ac to get the compiler flags right.

Now that mountd junction support is getting built, a few last minute
porting bugs popped out. Fix those up.

Reported-by: Yongcheng Yang <yoyang@xxxxxxxxxx>
BugLink: https://bugzilla.redhat.com/show_bug.cgi?id=1543126
Fixes: 79978ed34973 ("mountd: Solder in support for NFS basic ... ")
Signed-off-by: Chuck Lever <chuck.lever@xxxxxxxxxx>
---
 configure.ac         |    8 +++++++-
 utils/mountd/cache.c |   18 +++++++++---------
 2 files changed, 16 insertions(+), 10 deletions(-)

diff --git a/configure.ac b/configure.ac
index 16eae06..b458891 100644
--- a/configure.ac
+++ b/configure.ac
@@ -185,7 +185,13 @@ AC_ARG_ENABLE(junction,
 			[enable support for NFS junctions @<:@default=no@:>@])],
 	enable_junction=$enableval,
 	enable_junction=no)
-AM_CONDITIONAL(CONFIG_JUNCTION, [test "$enable_junction" = "yes" ])
+	if test "$enable_junction" = yes; then
+		AC_DEFINE(HAVE_JUNCTION_SUPPORT, 1,
+                          [Define this if you want junction support compiled in])
+	else
+		enable_junction=
+	fi
+	AM_CONDITIONAL(CONFIG_JUNCTION, [test "$enable_junction" = "yes" ])
 
 AC_ARG_ENABLE(tirpc,
 	[AC_HELP_STRING([--disable-tirpc],
diff --git a/utils/mountd/cache.c b/utils/mountd/cache.c
index 6f42512..7e8d403 100644
--- a/utils/mountd/cache.c
+++ b/utils/mountd/cache.c
@@ -976,8 +976,9 @@ lookup_export(char *dom, char *path, struct addrinfo *ai)
 	return found;
 }
 
-#ifdef CONFIG_JUNCTION
+#ifdef HAVE_JUNCTION_SUPPORT
 
+#include <libxml/parser.h>
 #include "junction.h"
 
 struct nfs_fsloc_set {
@@ -1084,8 +1085,7 @@ static bool locations_to_fslocdata(struct nfs_fsloc_set *locations,
 	*ttl = 0;
 
 	for (;;) {
-		enum jp_status status;
-		int len;
+		int len, status;
 
 		status = get_next_location(locations, &server,
 							&rootpath, ttl);
@@ -1219,7 +1219,7 @@ nfs_get_basic_junction(const char *junct_path, struct nfs_fsloc_set **locset)
 		return EINVAL;
 	}
 
-	locset->ns_current = locset->ns_list;
+	new->ns_current = new->ns_list;
 	new->ns_ttl = 300;
 	*locset = new;
 	return 0;
@@ -1242,7 +1242,7 @@ static struct exportent *lookup_junction(char *dom, const char *pathname,
 	status = nfs_get_basic_junction(pathname, &locations);
 	switch (status) {
 		xlog(L_WARNING, "Dangling junction %s: %s",
-			pathname, strerro(status));
+			pathname, strerror(status));
 		goto out;
 	}
 
@@ -1252,8 +1252,8 @@ static struct exportent *lookup_junction(char *dom, const char *pathname,
 
 	exp = locations_to_export(locations, pathname, parent);
 
-	nfs_free_locations(locset->ns_list);
-	free(locset);
+	nfs_free_locations(locations->ns_list);
+	free(locations);
 
 out:
 	xmlCleanupParser();
@@ -1273,7 +1273,7 @@ static void lookup_nonexport(int f, char *buf, int buflen, char *dom, char *path
 	free(eep);
 }
 
-#else	/* !CONFIG_JUNCTION */
+#else	/* !HAVE_JUNCTION_SUPPORT */
 
 static void lookup_nonexport(int f, char *buf, int buflen, char *dom, char *path,
 		struct addrinfo *UNUSED(ai))
@@ -1281,7 +1281,7 @@ static void lookup_nonexport(int f, char *buf, int buflen, char *dom, char *path
 	dump_to_cache(f, buf, buflen, dom, path, NULL, 0);
 }
 
-#endif	/* !CONFIG_JUNCTION */
+#endif	/* !HAVE_JUNCTION_SUPPORT */
 
 static void nfsd_export(int f)
 {




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