debian/modules/nginx-development-kit/src/ndk_buf.h

ngx_int_t   ndk_copy_chain_to_str   (ngx_pool_t *pool, ngx_chain_t *in, ngx_str_t *str);
char *      ndk_copy_chain_to_charp (ngx_pool_t *pool, ngx_chain_t *in);