2 * Copyright (C) 2016 Jo-Philipp Wich <jo@mein.io>
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU Lesser General Public License version 2.1
6 * as published by the Free Software Foundation
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU General Public License for more details.
17 #include <blkid/blkid.h>
18 #include <libubox/utils.h>
25 blkid_probe (*alloc)(const char *);
26 int (*probe)(blkid_probe);
27 int (*lookup)(blkid_probe, const char *, const char **, size_t *);
28 void (*free)(blkid_probe);
37 if (!libblkid.loaded) {
38 lib = dlopen("libblkid.so", RTLD_GLOBAL);
41 libblkid.alloc = dlsym(lib, "blkid_new_probe_from_filename");
42 libblkid.probe = dlsym(lib, "blkid_do_probe");
43 libblkid.lookup = dlsym(lib, "blkid_probe_lookup_value");
44 libblkid.free = dlsym(lib, "blkid_free_probe");
47 libblkid.loaded = true;
50 return (libblkid.alloc && libblkid.probe && libblkid.lookup && libblkid.free);
54 probe_path_libblkid(const char *path)
57 struct probe_info *info = NULL;
58 size_t type_len, uuid_len, label_len, version_len;
59 char *dev_ptr, *type_ptr, *uuid_ptr, *label_ptr, *version_ptr;
60 const char *type_val, *uuid_val, *label_val, *version_val;
65 pr = libblkid.alloc(path);
70 if (libblkid.probe(pr) == 0) {
71 if (libblkid.lookup(pr, "TYPE", &type_val, &type_len))
74 if (libblkid.lookup(pr, "UUID", &uuid_val, &uuid_len))
77 if (libblkid.lookup(pr, "LABEL", &label_val, &label_len))
80 if (libblkid.lookup(pr, "VERSION", &version_val, &version_len))
84 info = calloc_a(sizeof(*info),
85 &dev_ptr, strlen(path) + 1,
88 &label_ptr, label_len,
89 &version_ptr, version_len);
92 info->dev = strcpy(dev_ptr, path);
93 info->type = strcpy(type_ptr, type_val);
96 info->uuid = strcpy(uuid_ptr, uuid_val);
99 info->label = strcpy(label_ptr, label_val);
102 info->version = strcpy(version_ptr, version_val);