1 /* 2 * Copyright (c) 2017 JingPiao Chen <chenjingpiao@gmail.com> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. The name of the author may not be used to endorse or promote products 14 * derived from this software without specific prior written permission. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 21 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 */ 27 28 #include "tests.h" 29 #include <asm/unistd.h> 30 31 #ifdef __NR_ustat 32 33 # include <stdio.h> 34 # include <sys/stat.h> 35 # include <sys/sysmacros.h> 36 # include <unistd.h> 37 # ifdef HAVE_USTAT_H 38 # include <ustat.h> 39 # endif 40 41 int 42 main(void) 43 { 44 const kernel_ulong_t magic = (kernel_ulong_t) 0xfacefeedffffffff; 45 unsigned long long buf[4]; 46 unsigned int dev; 47 long rc; 48 49 # ifdef HAVE_USTAT_H 50 TAIL_ALLOC_OBJECT_CONST_PTR(struct ustat, ust); 51 struct stat st; 52 if (stat(".", &st)) 53 perror_msg_and_fail("stat"); 54 55 dev = (unsigned int) st.st_dev; 56 rc = syscall(__NR_ustat, dev, ust); 57 if (rc) 58 printf("ustat(makedev(%u, %u), %p) = %s\n", 59 major(dev), minor(dev), ust, sprintrc(rc)); 60 else 61 printf("ustat(makedev(%u, %u)" 62 ", {f_tfree=%llu, f_tinode=%llu}) = 0\n", 63 major(dev), minor(dev), 64 zero_extend_signed_to_ull(ust->f_tfree), 65 zero_extend_signed_to_ull(ust->f_tinode)); 66 # endif /* HAVE_USTAT_H */ 67 68 dev = (unsigned int) magic; 69 rc = syscall(__NR_ustat, magic, 0); 70 printf("ustat(makedev(%u, %u), NULL) = %s\n", 71 major(dev), minor(dev), sprintrc(rc)); 72 73 rc = syscall(__NR_ustat, magic, buf); 74 printf("ustat(makedev(%u, %u), %p) = %s\n", 75 major(dev), minor(dev), buf, sprintrc(rc)); 76 77 puts("+++ exited with 0 +++"); 78 return 0; 79 } 80 81 #else 82 83 SKIP_MAIN_UNDEFINED("__NR_ustat") 84 85 #endif 86