49 lines
1.2 KiB
C
49 lines
1.2 KiB
C
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/* This file is part of the sample code and exercises
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* used by the class "Advanced Programming in the UNIX
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* Environment" taught by Jan Schaumann
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* <jschauma@netmeister.org> at Stevens Institute of
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* Technology.
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*
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* This file is in the public domain.
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*
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* You don't have to, but if you feel like
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* acknowledging where you got this code, you may
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* reference me by name, email address, or point
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* people to the course website:
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* https://stevens.netmeister.org/631/
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*/
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/* This program prints out the amount of space
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* required to represent a directory entry in the Unix
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* File System per <ufs/ufs/dir.h>.
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*
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* ./a.out filename
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*
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* You should be able to determine how many files of a
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* given filename length you can create in a directory
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* without that directory size increasing.
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*
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* Note that once a directory size has increased,
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* removing files from it will not shrink it again
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* (on UFS/FFS).
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*/
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#include <sys/types.h>
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#include <ufs/ufs/dir.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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int
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main(int argc, char **argv) {
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if (argc != 2) {
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fprintf(stderr, "Usage: %s name\n", argv[0]);
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exit(EXIT_FAILURE);
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}
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printf("%ld\n", UFS_DIRECTSIZ(strlen(argv[1])));
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exit(EXIT_SUCCESS);
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}
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