Eric Andersen | aad1a88 | 2001-03-16 22:47:14 +0000 | [diff] [blame^] | 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 <sys/stat.h> |
| 30 | #include "libbb.h" |
| 31 | |
| 32 | /* |
| 33 | * Copy chunksize bytes between two file descriptors |
| 34 | */ |
| 35 | int copy_file_chunk(int srcfd, int dstfd, size_t chunksize) |
| 36 | { |
| 37 | size_t size; |
| 38 | char buffer[BUFSIZ]; /* BUFSIZ is declared in stdio.h */ |
| 39 | |
| 40 | while (chunksize > 0) { |
| 41 | if (chunksize > BUFSIZ) |
| 42 | size = BUFSIZ; |
| 43 | else |
| 44 | size = chunksize; |
| 45 | if (full_write(dstfd, buffer, full_read(srcfd, buffer, size)) < size) |
| 46 | return(FALSE); |
| 47 | chunksize -= size; |
| 48 | } |
| 49 | return (TRUE); |
| 50 | } |
| 51 | |
| 52 | |
| 53 | /* END CODE */ |
| 54 | /* |
| 55 | Local Variables: |
| 56 | c-file-style: "linux" |
| 57 | c-basic-offset: 4 |
| 58 | tab-width: 4 |
| 59 | End: |
| 60 | */ |