1*600f14f4SXin Li /* libFLAC - Free Lossless Audio Codec library 2*600f14f4SXin Li * Copyright (C) 2013-2023 Xiph.Org Foundation 3*600f14f4SXin Li * 4*600f14f4SXin Li * Redistribution and use in source and binary forms, with or without 5*600f14f4SXin Li * modification, are permitted provided that the following conditions 6*600f14f4SXin Li * are met: 7*600f14f4SXin Li * 8*600f14f4SXin Li * - Redistributions of source code must retain the above copyright 9*600f14f4SXin Li * notice, this list of conditions and the following disclaimer. 10*600f14f4SXin Li * 11*600f14f4SXin Li * - Redistributions in binary form must reproduce the above copyright 12*600f14f4SXin Li * notice, this list of conditions and the following disclaimer in the 13*600f14f4SXin Li * documentation and/or other materials provided with the distribution. 14*600f14f4SXin Li * 15*600f14f4SXin Li * - Neither the name of the Xiph.org Foundation nor the names of its 16*600f14f4SXin Li * contributors may be used to endorse or promote products derived from 17*600f14f4SXin Li * this software without specific prior written permission. 18*600f14f4SXin Li * 19*600f14f4SXin Li * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 20*600f14f4SXin Li * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 21*600f14f4SXin Li * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 22*600f14f4SXin Li * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR 23*600f14f4SXin Li * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 24*600f14f4SXin Li * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 25*600f14f4SXin Li * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 26*600f14f4SXin Li * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 27*600f14f4SXin Li * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 28*600f14f4SXin Li * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 29*600f14f4SXin Li * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 30*600f14f4SXin Li */ 31*600f14f4SXin Li 32*600f14f4SXin Li #include <errno.h> 33*600f14f4SXin Li 34*600f14f4SXin Li /* FLAC_CHECK_RETURN : Check the return value of the provided function and 35*600f14f4SXin Li * print an error message if it fails (ie returns a value < 0). 36*600f14f4SXin Li * 37*600f14f4SXin Li * Ideally, a library should not print anything, but this macro is only used 38*600f14f4SXin Li * for things that extremely unlikely to fail, like `chown` to a previoulsy 39*600f14f4SXin Li * saved `uid`. 40*600f14f4SXin Li */ 41*600f14f4SXin Li 42*600f14f4SXin Li #define FLAC_CHECK_RETURN(x) \ 43*600f14f4SXin Li { if ((x) < 0) \ 44*600f14f4SXin Li fprintf (stderr, "%s : %s\n", #x, strerror (errno)) ; \ 45*600f14f4SXin Li } 46