ls: add standards doc; record author of "total NNNN" code
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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@ -584,6 +584,16 @@ static void showfiles(struct dnode **dn, unsigned nfiles)
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#if ENABLE_DESKTOP
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/* http://www.opengroup.org/onlinepubs/9699919799/utilities/ls.html
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* If any of the -l, -n, -s options is specified, each list
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* of files within the directory shall be preceded by a
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* status line indicating the number of file system blocks
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* occupied by files in the directory in 512-byte units if
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* the -k option is not specified, or 1024-byte units if the
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* -k option is specified, rounded up to the next integral
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* number of units.
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*/
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/* by Jorgen Overgaard (jorgen AT antistaten.se) */
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static off_t calculate_blocks(struct dnode **dn, int nfiles)
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{
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uoff_t blocks = 1;
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@ -593,7 +603,7 @@ static off_t calculate_blocks(struct dnode **dn, int nfiles)
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nfiles--;
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}
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/* Even though POSIX says use 512 byte blocks, coreutils use 1k */
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/* Even though standard says use 512 byte blocks, coreutils use 1k */
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/* Actually, we round up by calculating (blocks + 1) / 2,
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* "+ 1" was done when we initialized blocks to 1 */
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return blocks >> 1;
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