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/* vi: set sw=4 ts=4: */
/*
* Utility routines.
*
* Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
*
* Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
*/
#include "libbb.h"
char *find_block_device(const char *path)
{
DIR *dir;
struct dirent *entry;
struct stat st;
dev_t dev;
char *retpath=NULL;
if (stat(path, &st) || !(dir = opendir("/dev")))
return NULL;
dev = (st.st_mode & S_IFMT) == S_IFBLK ? st.st_rdev : st.st_dev;
while ((entry = readdir(dir)) != NULL) {
char devpath[PATH_MAX];
sprintf(devpath,"/dev/%s", entry->d_name);
if (!stat(devpath, &st) && S_ISBLK(st.st_mode) && st.st_rdev == dev) {
retpath = xstrdup(devpath);
break;
}
}
closedir(dir);
return retpath;
}
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