1 /* 2 * This file and its contents are supplied under the terms of the 3 * Common Development and Distribution License ("CDDL"), version 1.0. 4 * You may only use this file in accordance with the terms of version 5 * 1.0 of the CDDL. 6 * 7 * A full copy of the text of the CDDL should have accompanied this 8 * source. A copy of the CDDL is also available via the Internet at 9 * http://www.illumos.org/license/CDDL. 10 */ 11 12 /* 13 * Copyright 2023 Bill Sommerfeld <sommerfeld@alum.mit.edu> 14 */ 15 16 /* 17 * Test for closefrom(). Test cases were inspired by xapian's 18 * test_closefrom1() and are somewhat incomplete (we don't test 19 * what happens when /proc/self/fd isn't available). 20 */ 21 #include <err.h> 22 #include <errno.h> 23 #include <limits.h> 24 #include <stdarg.h> 25 #include <stdlib.h> 26 #include <unistd.h> 27 #include <sys/debug.h> 28 29 int 30 main(void) 31 { 32 closefrom(INT_MAX); /* should be a no-op */ 33 34 VERIFY3S(dup2(1, 10), ==, 10); 35 VERIFY3S(dup2(1, 11), ==, 11); 36 VERIFY3S(dup2(1, 15), ==, 15); 37 38 closefrom(11); 39 40 VERIFY3S(close(10), ==, 0); 41 VERIFY3S(close(11), ==, -1); 42 VERIFY3S(errno, ==, EBADF); 43 VERIFY3S(close(15), ==, -1); 44 VERIFY3S(errno, ==, EBADF); 45 46 exit(0); 47 } 48