1 /* vi: set sw=4 ts=4: */
5 * Copyright (C) 1999-2005 by Erik Andersen <andersen@codepoet.org>
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.
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.
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
37 static size_t bb_full_fd_action(int src_fd, int dst_fd, const size_t size2)
40 size_t xread, wrote, total, size = size2;
47 /* If size is 0 copy until EOF */
52 RESERVE_CONFIG_BUFFER(buffer,BUFSIZ);
59 if (size < (total + BUFSIZ))
61 xread = bb_full_read(src_fd, buffer, xread);
64 /* A -1 dst_fd means we need to fake it... */
67 wrote = bb_full_write(dst_fd, buffer, xread);
70 bb_perror_msg(bb_msg_write_error);
74 } else if (xread < 0) {
75 bb_perror_msg(bb_msg_read_error);
77 } else if (xread == 0) {
83 RELEASE_CONFIG_BUFFER(buffer);
86 if (status == 0 || total)
88 /* Some sortof error occured */
93 extern int bb_copyfd_size(int fd1, int fd2, const off_t size)
96 return(bb_full_fd_action(fd1, fd2, size));
101 extern int bb_copyfd_eof(int fd1, int fd2)
103 return(bb_full_fd_action(fd1, fd2, 0));