Change in libosmo-sccp[master]: xua: introduce xua_msg_get_u32p() helper

[laforge]

laforge has uploaded this change for review. ( https://gerrit.osmocom.org/c/libosmo-sccp/+/22832 )


Change subject: xua: introduce xua_msg_get_u32p() helper
......................................................................

xua: introduce xua_msg_get_u32p() helper

Change-Id: Id7780074b82bc668ae148456750b1a01799decd1
---
M include/osmocom/sigtran/xua_msg.h
M src/xua_msg.c
2 files changed, 11 insertions(+), 0 deletions(-)



  git pull ssh://gerrit.osmocom.org:29418/libosmo-sccp refs/changes/32/22832/1

diff --git a/include/osmocom/sigtran/xua_msg.h b/include/osmocom/sigtran/xua_msg.h
index 329ba96..11bce6f 100644
--- a/include/osmocom/sigtran/xua_msg.h
+++ b/include/osmocom/sigtran/xua_msg.h
@@ -91,6 +91,7 @@
 int xua_msg_add_u32(struct xua_msg *xua, uint16_t iei, uint32_t val);
 uint32_t xua_msg_part_get_u32(const struct xua_msg_part *part);
 uint32_t xua_msg_get_u32(const struct xua_msg *xua, uint16_t iei);
+const uint32_t *xua_msg_get_u32p(const struct xua_msg *xua, uint16_t iei, uint32_t *out);
 const char *xua_msg_part_get_str(const struct xua_msg_part *part);
 const char *xua_msg_get_str(const struct xua_msg *xua, uint16_t iei);
 void xua_part_add_gt(struct msgb *msg, const struct osmo_sccp_gt *gt);
diff --git a/src/xua_msg.c b/src/xua_msg.c
index 42c580d..1df9abd 100644
--- a/src/xua_msg.c
+++ b/src/xua_msg.c
@@ -297,6 +297,16 @@
 	return xua_msg_part_get_u32(part);
 }
 
+/* get a U32 IE in host-byte-order, returning whether it exists (!= NULL) or not (== NULL) */
+const uint32_t *xua_msg_get_u32p(const struct xua_msg *xua, uint16_t iei, uint32_t *out)
+{
+	struct xua_msg_part *part = xua_msg_find_tag(xua, iei);
+	if (!part)
+		return NULL;
+	*out = xua_msg_part_get_u32(part);
+	return out;
+}
+
 const char *xua_msg_part_get_str(const struct xua_msg_part *part)
 {
 	static char __thread buf[256];

-- 
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Gerrit-Project: libosmo-sccp
Gerrit-Branch: master
Gerrit-Change-Id: Id7780074b82bc668ae148456750b1a01799decd1
Gerrit-Change-Number: 22832
Gerrit-PatchSet: 1
Gerrit-Owner: laforge <laforge at osmocom.org>
Gerrit-MessageType: newchange
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