CODEWITHSUNDEEP
clzo
Madao
Madao

Reputation: 109

How to compress and decompress a string with LZO?

Trying to figure out what the proper way to plug in my data is. Any help? Doing it in the way seen here results in integer without a cast. I've tried this a few ways but never quite got the hand of it.

lzo_bytep SERV_DATA_SEND = "702D31FA78809907133F1256459ABFECA9769AEAB65F3F125658";

in_len = IN_LEN;
lzo_memset(in,SERV_DATA_SEND,strlen(SERV_DATA_SEND));
printf("memset: %s\n\n", in);

Upvotes: 0

Views: 710

Answers (1)

Fatih Aktaş
Fatih Aktaş

Reputation: 1564

To prepare the data in a buffer, you should use lzo_memcpy(in, SERV_DATA_SEND, strlen(SERV_DATA_SEND)), which accepts chars in its second parameter.

pub unsafe extern "C" fn lzo_memcpy(
    dst: *mut c_void, 
    src: *const c_void, 
    len: lzo_uint
) -> *mut c_void

In lzo_memset(), the second parameter accepts an integer.

pub unsafe extern "C" fn lzo_memset(
    buf: *mut c_void, 
    c: c_int, 
    len: lzo_uint
) -> *mut c_void

For example, if you want to clear the buffer, you can use the code below. It will set all the blocks to zero.

lzo_memset(in,0,in_len);

Check out the overlap.c and simple.c example in http://www.oberhumer.com/opensource/lzo/#download

Upvotes: 1

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