/**
* This function validates whether given object is valid for filesystem
* informations statistics and stores path suitable for it in given
* filesystem information structure for later use. Filesystem must be mounted.
*
* Valid objects are file or directory that are part of requested
* filesystem, block special device or mountpoint.
*
* In the case of file, directory or mountpoint the result is original
* object, in the case of block special device mountpoint is returned.
*
* @param inf Information structure where resulting data will be stored
* @param object Identifies appropriate device object
* @return NULL in the case of failure otherwise filesystem path
*/
char *device_path(Info_T inf, char *object) {
struct stat buf;
ASSERT(inf);
ASSERT(object);
if(stat(object, &buf) != 0) {
LogError("%s: Cannot stat '%s' -- %s\n", prog, object, STRERROR);
return NULL;
}
if(S_ISREG(buf.st_mode) || S_ISDIR(buf.st_mode)) {
inf->mntpath[sizeof(inf->mntpath) - 1] = 0;
return strncpy(inf->mntpath, object, sizeof(inf->mntpath) - 1);
} else if(S_ISBLK(buf.st_mode)) {
return device_mountpoint_sysdep(inf, object);
}
LogError("%s: Not file, directory or block special device: '%s'",
prog, object);
return NULL;
}
/**
* This function validates whether given object is valid for filesystem
* informations statistics and stores path suitable for it in given
* filesystem information structure for later use. Filesystem must be mounted.
*
* Valid objects are file or directory that are part of requested
* filesystem, device or mountpoint.
*
* In the case of file, directory or mountpoint the result is original
* object, in the case of device the mountpoint is returned.
*
* @param inf Information structure where resulting data will be stored
* @param object Identifies appropriate device object
* @return NULL in the case of failure otherwise filesystem path
*/
char *device_path(Info_T inf, char *object) {
struct stat buf;
ASSERT(inf);
ASSERT(object);
if(stat(object, &buf) != 0) {
LogError("Cannot stat '%s' -- %s\n", object, STRERROR);
return NULL;
}
if(S_ISREG(buf.st_mode) || S_ISDIR(buf.st_mode)) {
inf->priv.filesystem.mntpath = Str_dup(object);
return inf->priv.filesystem.mntpath;
} else if(S_ISBLK(buf.st_mode) || S_ISCHR(buf.st_mode)) {
return device_mountpoint_sysdep(inf, object);
}
LogError("Not file, directory or device: '%s'", object);
return NULL;
}
