?? device_open.c
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/* vi: set sw=4 ts=4: *//* * Utility routines. * * Copyright (C) 1999,2000,2001 by Erik Andersen <andersee@debian.org> * * 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; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */#include <stdio.h>#include <fcntl.h>#include "libbb.h"/* try to open up the specified device */extern int device_open(char *device, int mode){ int m, f, fd = -1; m = mode | O_NONBLOCK; /* Retry up to 5 times */ for (f = 0; f < 5; f++) if ((fd = open(device, m, 0600)) >= 0) break; if (fd < 0) return fd; /* Reset original flags. */ if (m != mode) fcntl(fd, F_SETFL, mode); return fd;}/* END CODE *//*Local Variables:c-file-style: "linux"c-basic-offset: 4tab-width: 4End:*/
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