1/* vi: set sw=4 ts=4: */ 2/* 3 * Utility routines. 4 * 5 * Copyright (C) tons of folks. Tracking down who wrote what 6 * isn't something I'm going to worry about... If you wrote something 7 * here, please feel free to acknowledge your work. 8 * 9 * This program is free software; you can redistribute it and/or modify 10 * it under the terms of the GNU General Public License as published by 11 * the Free Software Foundation; either version 2 of the License, or 12 * (at your option) any later version. 13 * 14 * This program is distributed in the hope that it will be useful, 15 * but WITHOUT ANY WARRANTY; without even the implied warranty of 16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 17 * General Public License for more details. 18 * 19 * You should have received a copy of the GNU General Public License 20 * along with this program; if not, write to the Free Software 21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 22 * 23 * Based in part on code from sash, Copyright (c) 1999 by David I. Bell 24 * Permission has been granted to redistribute this code under the GPL. 25 * 26 */ 27 28#include <stdio.h> 29#include <unistd.h> 30#include "libbb.h" 31 32/* 33 * Write all of the supplied buffer out to a file. 34 * This does multiple writes as necessary. 35 * Returns the amount written, or -1 on an error. 36 */ 37int full_write(int fd, const char *buf, int len) 38{ 39 int cc; 40 int total; 41 42 total = 0; 43 44 while (len > 0) { 45 cc = write(fd, buf, len); 46 47 if (cc < 0) 48 return -1; 49 50 buf += cc; 51 total += cc; 52 len -= cc; 53 } 54 55 return total; 56} 57 58 59/* END CODE */ 60/* 61Local Variables: 62c-file-style: "linux" 63c-basic-offset: 4 64tab-width: 4 65End: 66*/ 67