sftp size of 2GB files

Hello,

I'm running libssh2 with sftp file transfer under Suse Linux 11.2, 64 Bit.
Using function libssh2_sftp_readdir_ex() on a directory containing a 2GB=2^31 byte (exatcly) file reports file size = 18446744071562067968.

I've changed method

libssh2_uint64_t
_libssh2_ntohu64(const unsigned char *buf)

in src/misc.c to the following code:

libssh2_uint64_t
_libssh2_ntohu64(const unsigned char *buf)
{
    unsigned long msl = 0;
    unsigned long lsl = 0;

    msl = ((unsigned )buf[0] << 24) | ((unsigned )buf[1] << 16) | ((unsigned )buf[2] << 8) | (unsigned )buf[3];
    lsl = ((unsigned )buf[4] << 24) | ((unsigned )buf[5] << 16) | ((unsigned )buf[6] << 8) | (unsigned )buf[7];

    return ((libssh2_uint64_t)msl <<32) | lsl;
}

This is essentially the same code as your original code. Only difference is the explicit cast of buf[i] to unsigned int.

I did not observe this problem running in a 32 bit environment. My gcc version 4.4.1 uses 8 bytes for long and 4 bytes for int in the 64 bit environment. In 32 bit environment both have size 4 bytes.

Best regards
Arno

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