/*********************************************************************** * * * This software is part of the ast package * * Copyright (c) 1985-2011 AT&T Intellectual Property * * and is licensed under the * * Eclipse Public License, Version 1.0 * * by AT&T Intellectual Property * * * * A copy of the License is available at * * http://www.eclipse.org/org/documents/epl-v10.html * * (with md5 checksum b35adb5213ca9657e911e9befb180842) * * * * Information and Software Systems Research * * AT&T Research * * Florham Park NJ * * * * Glenn Fowler * * David Korn * * Phong Vo * * * ***********************************************************************/ #pragma prototyped #include #if _lib_dup2 NoN(dup2) #else #include int dup2(int d1, int d2) { int save_errno; if (d1 == d2) return(d1); save_errno = errno; close(d2); errno = save_errno; return(fcntl(d1, F_DUPFD, d2)); } #endif