diff options
Diffstat (limited to 'libbb/copy_file_chunk.c')
-rw-r--r-- | libbb/copy_file_chunk.c | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/libbb/copy_file_chunk.c b/libbb/copy_file_chunk.c new file mode 100644 index 0000000..3c657dd --- /dev/null +++ b/libbb/copy_file_chunk.c @@ -0,0 +1,60 @@ +/* vi: set sw=4 ts=4: */ +/* + * Utility routines. + * + * Copyright (C) tons of folks. Tracking down who wrote what + * isn't something I'm going to worry about... If you wrote something + * here, please feel free to acknowledge your work. + * + * 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 + * + * Based in part on code from sash, Copyright (c) 1999 by David I. Bell + * Permission has been granted to redistribute this code under the GPL. + * + */ + +#include <stdio.h> +#include <sys/stat.h> +#include "libbb.h" + +/* + * Copy chunksize bytes between two file descriptors + */ +int copy_file_chunk(int srcfd, int dstfd, size_t chunksize) +{ + size_t size; + char buffer[BUFSIZ]; /* BUFSIZ is declared in stdio.h */ + + while (chunksize > 0) { + if (chunksize > BUFSIZ) + size = BUFSIZ; + else + size = chunksize; + if (full_write(dstfd, buffer, full_read(srcfd, buffer, size)) < size) + return(FALSE); + chunksize -= size; + } + return (TRUE); +} + + +/* END CODE */ +/* +Local Variables: +c-file-style: "linux" +c-basic-offset: 4 +tab-width: 4 +End: +*/ |