1/* vi: set sw=4 ts=4: */ 2/* 3 * Utility routines. 4 * 5 * Copyright (C) 1999-2001 Erik Andersen <andersee@debian.org> 6 * 7 * This program is free software; you can redistribute it and/or modify 8 * it under the terms of the GNU General Public License as published by 9 * the Free Software Foundation; either version 2 of the License, or 10 * (at your option) any later version. 11 * 12 * This program is distributed in the hope that it will be useful, 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 15 * General Public License for more details. 16 * 17 * You should have received a copy of the GNU General Public License 18 * along with this program; if not, write to the Free Software 19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 20 */ 21 22#include <unistd.h> 23#include <string.h> 24#include <errno.h> 25#include "libbb.h" 26 27 28extern int copyfd(int fd1, int fd2) 29{ 30 char buf[8192]; 31 ssize_t nread, nwrote; 32 33 while (1) { 34 nread = safe_read(fd1, buf, sizeof(buf)); 35 if (nread == 0) 36 break; 37 if (nread == -1) { 38 perror_msg("read"); 39 return -1; 40 } 41 42 nwrote = full_write(fd2, buf, nread); 43 if (nwrote == -1) { 44 perror_msg("write"); 45 return -1; 46 } 47 } 48 49 return 0; 50} 51 52/* END CODE */ 53/* 54Local Variables: 55c-file-style: "linux" 56c-basic-offset: 4 57tab-width: 4 58End: 59*/ 60