+ if (point)
+ return point;
+
+ if (stat(block, &s))
+ return NULL;
+
+ if (!S_ISBLK(s.st_mode))
+ return NULL;
+
+ fp = fopen("/proc/self/mountinfo", "r");
+ if(!fp)
+ return NULL;
+
+ while (fgets(line, sizeof(line), fp)) {
+ strtok_r(line, " \t", &saveptr);
+ strtok_r(NULL, " \t", &saveptr);
+ if (atoi(strtok_r(NULL, ":", &saveptr)) == major(s.st_rdev) &&
+ atoi(strtok_r(NULL, " \t", &saveptr)) == minor(s.st_rdev)) {
+ strtok_r(NULL, " \t", &saveptr);
+ point = strtok_r(NULL, " \t", &saveptr);
+ break;
+ }
+ }
+
+ fclose(fp);
+