diff options
Diffstat (limited to 'release/src/router/busybox/libbb/copyfd.c')
-rw-r--r-- | release/src/router/busybox/libbb/copyfd.c | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/release/src/router/busybox/libbb/copyfd.c b/release/src/router/busybox/libbb/copyfd.c new file mode 100644 index 00000000..aa938d10 --- /dev/null +++ b/release/src/router/busybox/libbb/copyfd.c @@ -0,0 +1,59 @@ +/* vi: set sw=4 ts=4: */ +/* + * Utility routines. + * + * Copyright (C) 1999-2001 Erik Andersen <andersee@debian.org> + * + * 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 + */ + +#include <unistd.h> +#include <string.h> +#include <errno.h> +#include "libbb.h" + + +extern int copyfd(int fd1, int fd2) +{ + char buf[8192]; + ssize_t nread, nwrote; + + while (1) { + nread = safe_read(fd1, buf, sizeof(buf)); + if (nread == 0) + break; + if (nread == -1) { + perror_msg("read"); + return -1; + } + + nwrote = full_write(fd2, buf, nread); + if (nwrote == -1) { + perror_msg("write"); + return -1; + } + } + + return 0; +} + +/* END CODE */ +/* +Local Variables: +c-file-style: "linux" +c-basic-offset: 4 +tab-width: 4 +End: +*/ |