how to reverse fill each entity of byte array?

i want to prepare a byte buffer as a upd p开发者_Python百科acket i want to fill each value in reverse order how can i do so in ansi c

i have to do this on windows system,

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Assuming you are doing this so it will work on any receiving system: Use htonl() on each byte in your buffer when sending and ntohl() on each received byte.