Make IPv4() device paths print correctly.

We need to give the size to snprintf, not the offset.  The offset is
zero, so it'll only ever tell us the buffer size we need, even if we
have a reasonable buffer.

Signed-off-by: Peter Jones <pjones@redhat.com>

diff --git a/src/lib/unparse_path.c b/src/lib/unparse_path.c
index d76191d..4af4d3d 100644 (file)
--- a/src/lib/unparse_path.c
+++ b/src/lib/unparse_path.c
@@ -249,7 +249,7 @@ unparse_messaging_path(char *buffer, size_t buffer_size, EFI_DEVICE_PATH *path)
 
                return buf_offset;
        case 12:
-               needed = snprintf(buffer, buf_offset, "IPv4(");
+               needed = snprintf(buffer, buffer_size, "IPv4(");
                if (needed < 0)
                        return -1;
                buf_offset += needed;