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| -rw-r--r-- | du.c | 70 |
1 files changed, 70 insertions, 0 deletions
@@ -0,0 +1,70 @@ +/* + * UNG's Not GNU + * + * Copyright (c) 2011-2017, Jakob Kaivo <jkk@ung.org> + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + */ + +#define _XOPEN_SOURCE 700 +#include <stdio.h> +#include <sys/stat.h> +#include <unistd.h> + +static int du(const char *path, int blocksize) +{ + if (path == NULL) { + path = "."; + } + return 0; +} + +int main(int argc, char *argv[]) +{ + int blocksize = 512; + + int c; + while ((c = getopt(argc, argv, "askxHL")) != -1) { + switch (c) { + case 'a': /** report all files **/ + break; + + case 'H': /** dereference symlinks on command line **/ + break; + + case 'k': /** report in 1024-byte units **/ + blocksize = 1024; + break; + + case 'L': /** follow symlinks while recursing **/ + break; + + case 's': /** summarize total usage **/ + break; + + case 'x': /** do not cross file systems **/ + break; + + default: + return 1; + } + } + + int r = 0; + do { + r |= du(argv[optind++], blocksize); + } while (optind < argc); + + return r; +} |