X-Git-Url: https://git.cworth.org/git?p=tar;a=blobdiff_plain;f=lib%2Fdup2.c;fp=lib%2Fdup2.c;h=0000000000000000000000000000000000000000;hp=09990823be4122fe4c42409e8fa670817ec59a6b;hb=22f1eb8bc17e5be72dd23d42d6aaa60196ac22e6;hpb=00fa13ff3f2d5b6e2a94c5e948c38616ff7ad37a diff --git a/lib/dup2.c b/lib/dup2.c deleted file mode 100644 index 0999082..0000000 --- a/lib/dup2.c +++ /dev/null @@ -1,57 +0,0 @@ -/* Duplicate an open file descriptor to a specified file descriptor. - - Copyright (C) 1999, 2004, 2005, 2006, 2007 Free Software Foundation, Inc. - - 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 3 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, see . */ - -/* written by Paul Eggert */ - -#include - -/* Specification. */ -#include - -#include -#include - -#ifndef F_DUPFD -static int -dupfd (int fd, int desired_fd) -{ - int duplicated_fd = dup (fd); - if (duplicated_fd < 0 || duplicated_fd == desired_fd) - return duplicated_fd; - else - { - int r = dupfd (fd, desired_fd); - int e = errno; - close (duplicated_fd); - errno = e; - return r; - } -} -#endif - -int -dup2 (int fd, int desired_fd) -{ - if (fd == desired_fd) - return fd; - close (desired_fd); -#ifdef F_DUPFD - return fcntl (fd, F_DUPFD, desired_fd); -#else - return dupfd (fd, desired_fd); -#endif -}