/* This prints 04030201 */
printf ("b= %0X \n", *b);

all is OK, you did this probably on x86 CPU which is little endian. on powerpc it would be 01020304 as it is big endian.

to write endian independent code:

man htonl

all these are macros actually.

"network order" is big endian. so eg htonl would reverse order on x86, and ddo nothing on powerpc.


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