std-unix@ut-sally.UUCP (Moderator, John Quarterman) (05/11/87)
N.064 April 23, 1987 ``Comments on 1003.1 N.048,'' Dominic Dunlop. Comments on 1003.1 N48 (addition of cpio format to 1003.1 chapter 10) 1. The structure proposed is archaic, in that it uses short h_mtime[2] and short h_filesize[2] yet says nothing about the ordering of the half-words in the array. This allows the possibility that different implementations could make different "big endian" vs. "little endian" decisions on the same underlying architecture. Proposal: replace declarations above with long h_mtime and long h_filesize or with time_t h_mtime off_t h_filesize (Former probably more compatible with "shape" of existing structgure; latter, using same types as corresponding fields in struct stat, arguably more correct (this argument could be extended to other fields in struct Hdr as well)). 2. Scanf format is incorrect. It should be "%6ho%6ho%6ho%6ho%6ho%6ho%6ho%6ho%11lo%6ho%11lo%s" (As I know to my cost, format published by AT&T does not work on architectures where sizeof(int) == sizeof(long) ) Dominic Dunlop 4/23/87 Volume-Number: Volume 11, Number 15