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0ef64bdb40
This change retains "or later" state! No licensing _changes_ here, only form is adjusted (article, space between "GPL" and "v2" and so on). Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
32 lines
900 B
C
32 lines
900 B
C
/* vi: set sw=4 ts=4: */
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/*
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* freeramdisk and fdflush implementations for busybox
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*
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* Copyright (C) 2000 and written by Emanuele Caratti <wiz@iol.it>
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* Adjusted a bit by Erik Andersen <andersen@codepoet.org>
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* Unified with fdflush by Tito Ragusa <farmatito@tiscali.it>
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*
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* Licensed under GPLv2, see file LICENSE in this source tree.
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*/
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#include <sys/mount.h>
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#include "libbb.h"
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/* From <linux/fd.h> */
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#define FDFLUSH _IO(2,0x4b)
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int freeramdisk_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
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int freeramdisk_main(int argc UNUSED_PARAM, char **argv)
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{
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int fd;
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fd = xopen(single_argv(argv), O_RDWR);
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// Act like freeramdisk, fdflush, or both depending on configuration.
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ioctl_or_perror_and_die(fd, (ENABLE_FREERAMDISK && applet_name[1] == 'r')
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|| !ENABLE_FDFLUSH ? BLKFLSBUF : FDFLUSH, NULL, "%s", argv[1]);
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if (ENABLE_FEATURE_CLEAN_UP) close(fd);
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return EXIT_SUCCESS;
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}
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