1 /*
2 Bacula(R) - The Network Backup Solution
3
4 Copyright (C) 2000-2020 Kern Sibbald
5
6 The original author of Bacula is Kern Sibbald, with contributions
7 from many others, a complete list can be found in the file AUTHORS.
8
9 You may use this file and others of this release according to the
10 license defined in the LICENSE file, which includes the Affero General
11 Public License, v3.0 ("AGPLv3") and some additional permissions and
12 terms pursuant to its AGPLv3 Section 7.
13
14 This notice must be preserved when any source code is
15 conveyed and/or propagated.
16
17 Bacula(R) is a registered trademark of Kern Sibbald.
18 */
19 /*
20 * Program for determining file system type
21 *
22 * Written by Preben 'Peppe' Guldberg, December MMIV
23 */
24
25 #include "bacula.h"
26 #include "findlib/find.h"
27
usage()28 static void usage()
29 {
30 fprintf(stderr, _(
31 "\n"
32 "Usage: fstype [-v] path ...\n"
33 "\n"
34 " Print the file system type for each file/directory argument given.\n"
35 " The following options are supported:\n"
36 "\n"
37 " -l print all file system types in mtab.\n"
38 " -m print full entries in mtab.\n"
39 " -v print both path and file system type of each argument.\n"
40 " -? print this message.\n"
41 "\n"));
42
43 exit(1);
44 }
45
46 struct mtab_item {
47 rblink link;
48 uint64_t dev;
49 char fstype[1];
50 };
51
52 /* Compare two device types */
compare_mtab_items(void * item1,void * item2)53 static int compare_mtab_items(void *item1, void *item2)
54 {
55 mtab_item *mtab1, *mtab2;
56 mtab1 = (mtab_item *)item1;
57 mtab2 = (mtab_item *)item2;
58 if (mtab1->dev < mtab2->dev) return -1;
59 if (mtab1->dev > mtab2->dev) return 1;
60 return 0;
61 }
62
print_mtab_item(void * user_ctx,struct stat * st,const char * fstype,const char * mountpoint,const char * mntopts,const char * fsname)63 void print_mtab_item(void *user_ctx, struct stat *st, const char *fstype,
64 const char *mountpoint, const char *mntopts,
65 const char *fsname)
66 {
67 fprintf(stderr, "dev=%p fstype=%s mountpoint=%s mntopts=%s\n",
68 ((void *)st->st_dev), fstype, mountpoint, mntopts);
69 }
70
add_mtab_item(void * user_ctx,struct stat * st,const char * fstype,const char * mountpoint,const char * mntopts,const char * fsname)71 static void add_mtab_item(void *user_ctx, struct stat *st, const char *fstype,
72 const char *mountpoint, const char *mntopts,
73 const char *fsname)
74 {
75 rblist *mtab_list = (rblist *)user_ctx;
76 mtab_item *item, *ritem;
77 int len = strlen(fstype) + 1;
78
79 item = (mtab_item *)malloc(sizeof(mtab_item) + len);
80 item->dev = (uint64_t)st->st_dev;
81 bstrncpy(item->fstype, fstype, len);
82 //fprintf(stderr, "Add dev=%lx fstype=%s\n", item->dev, item->fstype);
83 ritem = (mtab_item *)mtab_list->insert((void *)item, compare_mtab_items);
84 if (ritem != item) {
85 fprintf(stderr, "Problem!! Returned item not equal added item\n");
86 }
87 //fprintf(stderr, "dev=%p fstype=%s mountpoint=%s mntopts=%s\n",
88 // ((void *)st->st_dev), fstype, mountpoint, mntopts);
89 }
90
91
main(int argc,char * const * argv)92 int main (int argc, char *const *argv)
93 {
94 char fs[1000];
95 bool verbose = false;
96 bool list = false;
97 bool mtab = false;
98 int status = 0;
99 int ch, i;
100
101 setlocale(LC_ALL, "");
102 bindtextdomain("bacula", LOCALEDIR);
103 textdomain("bacula");
104
105 while ((ch = getopt(argc, argv, "lmv?")) != -1) {
106 switch (ch) {
107 case 'l':
108 list = true;
109 break;
110 case 'm':
111 mtab = true; /* list mtab */
112 break;
113 case 'v':
114 verbose = true;
115 break;
116 case '?':
117 default:
118 usage();
119
120 }
121 }
122 argc -= optind;
123 argv += optind;
124
125
126 OSDependentInit();
127
128 if (mtab) {
129 read_mtab(print_mtab_item, NULL);
130 status = 1;
131 goto get_out;
132 }
133 if (list) {
134 rblist *mtab_list;
135 mtab_item *item;
136 mtab_list = New(rblist());
137 read_mtab(add_mtab_item, mtab_list);
138 fprintf(stderr, "Size of mtab=%d\n", mtab_list->size());
139 foreach_rblist(item, mtab_list) {
140 fprintf(stderr, "Found dev=%lx fstype=%s\n", item->dev, item->fstype);
141 }
142 delete mtab_list;
143 goto get_out;
144 }
145
146 if (argc < 1) {
147 usage();
148 }
149 for (i = 0; i < argc; --argc, ++argv) {
150 FF_PKT ff_pkt;
151 memset((void *)&ff_pkt, 0, sizeof(ff_pkt));
152 ff_pkt.fname = ff_pkt.link = *argv;
153 if (lstat(ff_pkt.fname, &ff_pkt.statp) != 0) {
154 fprintf(stderr, "lstat of %s failed.\n", ff_pkt.fname);
155 status = 1;
156 break;
157 }
158 if (fstype(&ff_pkt, fs, sizeof(fs))) {
159 if (verbose) {
160 printf("%s: %s\n", *argv, fs);
161 } else {
162 puts(fs);
163 }
164 } else {
165 fprintf(stderr, _("%s: unknown file system type\n"), *argv);
166 status = 1;
167 }
168 }
169
170 get_out:
171 exit(status);
172 }
173