/* * --- SDE-COPYRIGHT-NOTE-BEGIN --- * This copyright note is auto-generated by ./scripts/Create-CopyPatch. * * Filename: package/.../util-linux/freeramdisk.c * Copyright (C) 2008 The OpenSDE Project * Copyright (C) 2004 - 2006 The T2 SDE Project * * More information can be found in the files COPYING and README. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; version 2 of the License. A copy of the * GNU General Public License can be found in the file COPYING. * --- SDE-COPYRIGHT-NOTE-END --- */ #include <stdio.h> #include <string.h> #include <sys/mount.h> #include <sys/types.h> #include <sys/stat.h> #include <fcntl.h> #include <unistd.h> #include <sys/ioctl.h> #include <errno.h> int main(int argc, char **argv) { int c, f, rc=0; if (argc == 1) { fprintf(stderr,"Usage: %s /dev/rd/initrd " "[ /dev/rd/12 [ .. ] ]\n", argv[0]); return 1; } for (c=1; c < argc; c++) { if ((f=open(argv[c], O_RDWR)) == -1) { fprintf(stderr, "freeramdisk: cannot open %s: %s\n", argv[c], strerror(errno)); rc++; } else { ioctl(f, BLKFLSBUF); close(f); } } return rc; }