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Sources/fstools/probe.c

  1 /*
  2  * Copyright (C) 2016 Jo-Philipp Wich <jo@mein.io>
  3  *
  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
  7  *
  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.
 12  */
 13 
 14 #include <string.h>
 15 #include <libubox/utils.h>
 16 
 17 #include "probe.h"
 18 #include "libblkid-tiny/libblkid-tiny.h"
 19 
 20 static struct probe_info *
 21 probe_path_tiny(const char *path)
 22 {
 23         struct probe_info *info = NULL;
 24         struct blkid_struct_probe *pr;
 25         char *type, *dev, *uuid, *label, *version;
 26 
 27         pr = blkidtiny_new_probe();
 28         if (!pr)
 29                 return NULL;
 30 
 31         if (probe_block((char *)path, pr) == 0 && pr->id && !pr->err) {
 32                 info = calloc_a(sizeof(*info),
 33                                 &type,    strlen(pr->id->name) + 1,
 34                                 &dev,     strlen(pr->dev)      + 1,
 35                                 &uuid,    strlen(pr->uuid)     + 1,
 36                                 &label,   strlen(pr->label)    + 1,
 37                                 &version, strlen(pr->version)  + 1);
 38 
 39                 if (info) {
 40                         info->type = strcpy(type, pr->id->name);
 41 
 42                         if (pr->dev[0])
 43                                 info->dev = strcpy(dev, pr->dev);
 44 
 45                         if (pr->uuid[0])
 46                                 info->uuid = strcpy(uuid, pr->uuid);
 47 
 48                         if (pr->label[0])
 49                                 info->label = strcpy(label, pr->label);
 50 
 51                         if (pr->version[0])
 52                                 info->version = strcpy(version, pr->version);
 53                 }
 54         }
 55 
 56         blkidtiny_free_probe(pr);
 57 
 58         return info;
 59 }
 60 
 61 struct probe_info *
 62 probe_path(const char *path)
 63 {
 64         struct probe_info *info;
 65 
 66         info = probe_path_tiny(path);
 67 
 68         if (!info)
 69                 info = probe_path_libblkid(path);
 70 
 71         return info;
 72 }
 73 
 74 int
 75 make_devs(void)
 76 {
 77         return mkblkdev();
 78 }
 79 

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