lib: Add set_socket_path() to sockopt.c to override the path element of a (vty) socket (but keep filename)

Signed-off-by: Martin Winter <mwinter@opensourcerouting.org>

1 files changed, 23 insertions, 0 deletions

diff --git a/lib/sockopt.c b/lib/sockopt.c
index 461e1f7f5..570b575a7 100644
--- a/lib/sockopt.c
+++ b/lib/sockopt.c
@@ -29,6 +29,29 @@
 #include "sockopt.h"
 #include "sockunion.h"
 
+/* Replace the path of given defaultpath with newpath, but keep filename */
+void
+set_socket_path (char *path, char *defaultpath, char *newpath, int maxsize)
+{
+  char *sock_name;
+
+  sock_name = strrchr(defaultpath, '/');
+  if (sock_name)
+    /* skip '/' */
+    sock_name++;
+  else
+    /*
+     * VTYSH_PATH configured as relative path
+     * during config? Should really never happen for
+     * sensible config
+     */
+    sock_name = defaultpath;
+
+  strlcpy (path, newpath, maxsize);
+  strlcat (path, "/", maxsize);
+  strlcat (path, sock_name, maxsize);
+}
+
 void
 setsockopt_so_recvbuf (int sock, int size)
 {