[dm-devel] [PATCH 04/35] libmultipath: print: add __snprint_config()

[mwilck@suse.com]

From: Martin Wilck <mwilck@suse.com>

exactly like snprint_config(), but takes a struct strbuf * as argument.

Signed-off-by: Martin Wilck <mwilck@suse.com>
---
 libmultipath/libmultipath.version |  5 +++++
 libmultipath/print.c              | 34 +++++++++++++++++++++----------
 libmultipath/print.h              |  2 ++
 3 files changed, 30 insertions(+), 11 deletions(-)

diff --git a/libmultipath/libmultipath.version b/libmultipath/libmultipath.version
index 2107c51..b2feee2 100644
--- a/libmultipath/libmultipath.version
+++ b/libmultipath/libmultipath.version
@@ -297,3 +297,8 @@ LIBMULTIPATH_9.2.0 {
 global:
 	set_wakeup_fn;
 } LIBMULTIPATH_9.1.0;
+
+LIBMULTIPATH_9.3.0 {
+global:
+	__snprint_config;
+} LIBMULTIPATH_9.2.0;
diff --git a/libmultipath/print.c b/libmultipath/print.c
index 2fb9f4e..d2ef010 100644
--- a/libmultipath/print.c
+++ b/libmultipath/print.c
@@ -1756,24 +1756,36 @@ static int snprint_blacklist_except(const struct config *conf,
 	return get_strbuf_len(buff) - initial_len;
 }
 
+int __snprint_config(const struct config *conf, struct strbuf *buff,
+		     const struct _vector *hwtable, const struct _vector *mpvec)
+{
+	int rc;
+
+	if ((rc = snprint_defaults(conf, buff)) < 0 ||
+	    (rc = snprint_blacklist(conf, buff)) < 0 ||
+	    (rc = snprint_blacklist_except(conf, buff)) < 0 ||
+	    (rc = snprint_hwtable(conf, buff,
+				  hwtable ? hwtable : conf->hwtable)) < 0 ||
+	    (rc = snprint_overrides(conf, buff, conf->overrides)) < 0)
+		return rc;
+
+	if (VECTOR_SIZE(conf->mptable) > 0 ||
+	    (mpvec != NULL && VECTOR_SIZE(mpvec) > 0))
+		if ((rc = snprint_mptable(conf, buff, mpvec)) < 0)
+			return rc;
+
+	return 0;
+}
+
 char *snprint_config(const struct config *conf, int *len,
 		     const struct _vector *hwtable, const struct _vector *mpvec)
 {
 	STRBUF_ON_STACK(buff);
 	char *reply;
-	int rc;
+	int rc = __snprint_config(conf, &buff, hwtable, mpvec);
 
-	if ((rc = snprint_defaults(conf, &buff)) < 0 ||
-	    (rc = snprint_blacklist(conf, &buff)) < 0 ||
-	    (rc = snprint_blacklist_except(conf, &buff)) < 0 ||
-	    (rc = snprint_hwtable(conf, &buff,
-				  hwtable ? hwtable : conf->hwtable)) < 0 ||
-	    (rc = snprint_overrides(conf, &buff, conf->overrides)) < 0)
+	if (rc < 0)
 		return NULL;
-	if (VECTOR_SIZE(conf->mptable) > 0 ||
-	    (mpvec != NULL && VECTOR_SIZE(mpvec) > 0))
-		if ((rc = snprint_mptable(conf, &buff, mpvec)) < 0)
-			return NULL;
 
 	if (len)
 		*len = get_strbuf_len(&buff);
diff --git a/libmultipath/print.h b/libmultipath/print.h
index c6674a5..b149275 100644
--- a/libmultipath/print.h
+++ b/libmultipath/print.h
@@ -54,6 +54,8 @@ int _snprint_multipath_topology (const struct gen_multipath *, struct strbuf *,
 #define snprint_multipath_topology(buf, mpp, v) \
 	_snprint_multipath_topology (dm_multipath_to_gen(mpp), buf, v)
 int snprint_multipath_topology_json(struct strbuf *, const struct vectors *vecs);
+int __snprint_config(const struct config *conf, struct strbuf *buff,
+		     const struct _vector *hwtable, const struct _vector *mpvec);
 char *snprint_config(const struct config *conf, int *len,
 		     const struct _vector *hwtable,
 		     const struct _vector *mpvec);
-- 
2.33.0


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