Add a vquota(8) utility
[dragonfly.git] / sbin / vquota / vquota.c
CommitLineData
6a4c3e18
FT
1/*
2 * Copyright (c) 2011 Fran├žois Tigeot <ftigeot@wolfpond.org>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 *
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in
13 * the documentation and/or other materials provided with the
14 * distribution.
15 * 3. Neither the name of The DragonFly Project nor the names of its
16 * contributors may be used to endorse or promote products derived
17 * from this software without specific, prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
21 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
22 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
23 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
24 * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING,
25 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
26 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
27 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
28 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
29 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * SUCH DAMAGE.
31 */
32
33#include <sys/stat.h>
34
35#include <stdio.h>
36#include <stdlib.h>
37#include <err.h>
38#include <string.h>
39#include <fts.h>
40
41static void usage(int);
42static int get_dirsize( char* );
43
44static void usage(int retcode) {
45 fprintf( stderr, "usage: vquota check directory\n" );
46 exit(retcode);
47}
48
49static int get_dirsize( char* dirname ) {
50 FTS *fts;
51 FTSENT *p;
52 char* fts_args[2];
53 uint64_t size_of_files = 0;
54 int retval = 0;
55
56 /* TODO: check directory name sanity */
57 fts_args[0] = dirname;
58 fts_args[1] = NULL;
59
60 if ((fts = fts_open( fts_args, FTS_PHYSICAL, NULL)) == NULL)
61 err(1, "fts_open() failed");
62
63 while ((p = fts_read(fts)) != NULL) {
64 switch (p->fts_info) {
65 /* directories, ignore them */
66 case FTS_D:
67 case FTS_DC:
68 case FTS_DP:
69 break;
70 /* read errors, warn, continue and flag */
71 case FTS_DNR:
72 case FTS_ERR:
73 case FTS_NS:
74 warnx("%s: %s", p->fts_path, strerror(p->fts_errno));
75 retval = 1;
76 break;
77 default:
78 /* files with more than one link, undecided */
79 // if (p->fts_statp->st_nlink > 1 && linkchk(p))
80 if (p->fts_statp->st_nlink > 1)
81 fprintf( stderr, "%s has more than one link\n", p->fts_name );
82
83 size_of_files += p->fts_statp->st_size;
84 }
85 }
86
87 printf( "%lu\n", size_of_files );
88 return retval;
89}
90
91int main( int argc, char **argv ) {
92
93 if (argc < 3)
94 usage(1);
95
96 if (strcmp(argv[1], "check") == 0) {
97 return get_dirsize( argv[2] );
98 }
99
100 return 0;
101}