1*09d4459fSDaniel Fojt /* Determine whether two stat buffers are known to refer to the same file. 2cf28ed85SJohn Marino 3*09d4459fSDaniel Fojt Copyright (C) 2006, 2009-2020 Free Software Foundation, Inc. 4cf28ed85SJohn Marino 5cf28ed85SJohn Marino This program is free software: you can redistribute it and/or modify 6cf28ed85SJohn Marino it under the terms of the GNU General Public License as published by 7cf28ed85SJohn Marino the Free Software Foundation; either version 3 of the License, or 8cf28ed85SJohn Marino (at your option) any later version. 9cf28ed85SJohn Marino 10cf28ed85SJohn Marino This program is distributed in the hope that it will be useful, 11cf28ed85SJohn Marino but WITHOUT ANY WARRANTY; without even the implied warranty of 12cf28ed85SJohn Marino MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13cf28ed85SJohn Marino GNU General Public License for more details. 14cf28ed85SJohn Marino 15cf28ed85SJohn Marino You should have received a copy of the GNU General Public License 16*09d4459fSDaniel Fojt along with this program. If not, see <https://www.gnu.org/licenses/>. */ 17cf28ed85SJohn Marino 18cf28ed85SJohn Marino #ifndef SAME_INODE_H 19cf28ed85SJohn Marino # define SAME_INODE_H 1 20cf28ed85SJohn Marino 21*09d4459fSDaniel Fojt # include <sys/types.h> 22*09d4459fSDaniel Fojt 23*09d4459fSDaniel Fojt # if defined __VMS && __CRTL_VER < 80200000 24cf28ed85SJohn Marino # define SAME_INODE(a, b) \ 25cf28ed85SJohn Marino ((a).st_ino[0] == (b).st_ino[0] \ 26cf28ed85SJohn Marino && (a).st_ino[1] == (b).st_ino[1] \ 27cf28ed85SJohn Marino && (a).st_ino[2] == (b).st_ino[2] \ 28cf28ed85SJohn Marino && (a).st_dev == (b).st_dev) 29*09d4459fSDaniel Fojt # elif defined _WIN32 && ! defined __CYGWIN__ 30*09d4459fSDaniel Fojt /* Native Windows. */ 31*09d4459fSDaniel Fojt # if _GL_WINDOWS_STAT_INODES 32*09d4459fSDaniel Fojt /* stat() and fstat() set st_dev and st_ino to 0 if information about 33*09d4459fSDaniel Fojt the inode is not available. */ 34*09d4459fSDaniel Fojt # define SAME_INODE(a, b) \ 35*09d4459fSDaniel Fojt (!((a).st_ino == 0 && (a).st_dev == 0) \ 36*09d4459fSDaniel Fojt && (a).st_ino == (b).st_ino && (a).st_dev == (b).st_dev) 37*09d4459fSDaniel Fojt # else 38*09d4459fSDaniel Fojt /* stat() and fstat() set st_ino to 0 always. */ 39*09d4459fSDaniel Fojt # define SAME_INODE(a, b) 0 40*09d4459fSDaniel Fojt # endif 41cf28ed85SJohn Marino # else 42cf28ed85SJohn Marino # define SAME_INODE(a, b) \ 43cf28ed85SJohn Marino ((a).st_ino == (b).st_ino \ 44cf28ed85SJohn Marino && (a).st_dev == (b).st_dev) 45cf28ed85SJohn Marino # endif 46cf28ed85SJohn Marino 47cf28ed85SJohn Marino #endif 48