Hi everyone, I am trying to implement the md5 check summing of a message digest as a system call. I have everything working except a little issue where the checksum returned is in the little endian format. I passed the string "abc" to be check summed by the algorithm. The correct checksum for the string 'abc' is: "900150983cd24fb0d6963f7d28e17f72" but the value that the system call returns is: "ffffff900150ffffff983cffffffd24fffffffb0ffffffd6ffffff963f7d28ffffffe17f72" which essentially contains the checksum embedded inside. I looked through the source of 2.4.22 and 2.6 [test kernels] and saw that their implementation had a le32_to_cpu_array and a vice versa function. I am not sure what they do and how i should use them in my program if i need to. A little info about my program: --------- char *message = "abc"; char checksum[16]; i = md5checksum(message,(char*)checksum,strlen(message)); --------- The system call is a syscall3 type and it stores the computed checksum in the variable checksum passed to it. Inside the system call: --------- unsigned char md5sum[16]; .... .... md5_finish( &ctx, md5sum ); copy_to_user(checksum, md5sum,sizeof(md5sum)); --------- Any help to solve the problem would be of gr8 help to me. I am trying to achieve this on a 2.4.21 kernel. TIA Karthik __________________________________ Do you Yahoo!? Free Pop-Up Blocker - Get it now http://companion.yahoo.com/ -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/
