feat(API): Add subscription id and source retrieval

[ric-plt/lib/rmr.git] / src / common / src / mbuf_api.c

diff --git a/src/common/src/mbuf_api.c b/src/common/src/mbuf_api.c
index ef0c28f..4b6d218 100644 (file)
--- a/src/common/src/mbuf_api.c
+++ b/src/common/src/mbuf_api.c
@@ -316,3 +316,28 @@ extern int rmr_get_trlen( rmr_mbuf_t* msg ) {
 
        return RMR_TR_LEN( hdr );
 }
+
+/*
+       Returns the string in the source portion of the header. This is assumed to be
+       something that can be used for direct sends (hostname:port). Regardless, it
+       will be a nil terminated, ascii string with max of 64 characters including
+       the final nil. So, the user must ensure that dest is at least 64 bytes.
+
+       As a convenience, the pointer to dest is returned on success; nil on failure
+       with errno set.
+*/
+extern unsigned char* rmr_get_src( rmr_mbuf_t* msg, unsigned char* dest ) {
+       uta_mhdr_t*     hdr = NULL;
+
+       if( msg == NULL ) {
+               errno = EINVAL;
+               return NULL;
+       }
+
+       if( dest != NULL ) {
+               hdr = msg->header;
+               strcpy( dest, hdr->src );
+       }
+
+       return dest;
+}