ftp库函数，可以自己封装，有完整makefile， 比老牌nbpfaus.net的ftp3.1.1给容易阅读 ，而且相对其还支持断点续传哦，可以补足busybox，ftpput的不足之处-ftp library functions, you can own package, a complete makefile, than the old nbpfaus.net of ftp3.1.1 to easy to read, but also relative to its support HTT

整理的ftp库，有源代码和已经编译好的库，分x86和arm版-Finishing ftp libraries, source code and precompiled libraries, points x86 and arm version