/* Some basic tests for LFS. Copyright (C) 2000-2014 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Andreas Jaeger <aj@suse.de>, 2000. The GNU C Library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. The GNU C Library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with the GNU C Library; if not, see <http://www.gnu.org/licenses/>. */ #include <unistd.h> #include <stdlib.h> #include <sys/types.h> #include <sys/stat.h> #include <fcntl.h> #include <error.h> #include <errno.h> #include <sys/resource.h> /* Prototype for our test function. */ extern void do_prepare (int argc, char *argv[]); extern int do_test (int argc, char *argv[]); /* We have a preparation function. */ #define PREPARE do_prepare /* We might need a bit longer timeout. */ #define TIMEOUT 20 /* sec */ /* This defines the `main' function and some more. */ #include <test-skeleton.c> /* These are for the temporary file we generate. */ char *name; int fd; /* 2^31 = 2GB. */ #define TWO_GB 2147483648LL void do_prepare (int argc, char *argv[]) { size_t name_len; struct rlimit64 rlim; name_len = strlen (test_dir); name = malloc (name_len + sizeof ("/lfsXXXXXX")); mempcpy (mempcpy (name, test_dir, name_len), "/lfsXXXXXX", sizeof ("/lfsXXXXXX")); add_temp_file (name); /* Open our test file. */ fd = mkstemp64 (name); if (fd == -1) { if (errno == ENOSYS) { /* Fail silently. */ error (0, 0, "open64 is not supported"); exit (EXIT_SUCCESS); } else error (EXIT_FAILURE, errno, "cannot create temporary file"); } if (getrlimit64 (RLIMIT_FSIZE, &rlim) != 0) { error (0, errno, "cannot get resource limit"); exit (0); } if (rlim.rlim_cur < TWO_GB + 200) { rlim.rlim_cur = TWO_GB + 200; if (setrlimit64 (RLIMIT_FSIZE, &rlim) != 0) { error (0, errno, "cannot reset file size limits"); exit (0); } } } static void test_ftello (void) { FILE *f; int ret; off64_t pos; f = fopen64 (name, "w"); ret = fseeko64 (f, TWO_GB+100, SEEK_SET); if (ret == -1 && errno == ENOSYS) { error (0, 0, "fseeko64 is not supported."); exit (EXIT_SUCCESS); } if (ret == -1 && errno == EINVAL) { error (0, 0, "LFS seems not to be supported"); exit (EXIT_SUCCESS); } if (ret == -1) { error (0, errno, "fseeko64 failed with error"); exit (EXIT_FAILURE); } ret = fwrite ("Hello", 1, 5, f); if (ret == -1 && errno == EFBIG) { error (0, errno, "LFS seems not to be supported"); exit (EXIT_SUCCESS); } if (ret == -1 && errno == ENOSPC) { error (0, 0, "Not enough space to write file."); exit (EXIT_SUCCESS); } if (ret != 5) error (EXIT_FAILURE, errno, "Cannot write test string to large file"); pos = ftello64 (f); if (pos != TWO_GB+105) { error (0, 0, "ftello64 gives wrong result."); exit (EXIT_FAILURE); } fclose (f); } int do_test (int argc, char *argv[]) { int ret; struct stat64 statbuf; ret = lseek64 (fd, TWO_GB+100, SEEK_SET); if (ret == -1 && errno == ENOSYS) { error (0, 0, "lseek64 is not supported."); exit (EXIT_SUCCESS); } if (ret == -1 && errno == EINVAL) { error (0, 0, "LFS seems not to be supported."); exit (EXIT_SUCCESS); } if (ret == -1) { error (0, errno, "lseek64 failed with error"); exit (EXIT_FAILURE); } ret = write (fd, "Hello", 5); if (ret == -1 && errno == EFBIG) { error (0, 0, "LFS seems not to be supported."); exit (EXIT_SUCCESS); } if (ret == -1 && errno == ENOSPC) { error (0, 0, "Not enough space to write file."); exit (EXIT_SUCCESS); } if (ret != 5) error (EXIT_FAILURE, errno, "cannot write test string to large file"); ret = close (fd); if (ret == -1) error (EXIT_FAILURE, errno, "error closing file"); ret = stat64 (name, &statbuf); if (ret == -1 && (errno == ENOSYS || errno == EOVERFLOW)) error (0, 0, "stat64 is not supported."); else if (ret == -1) error (EXIT_FAILURE, errno, "cannot stat file `%s'", name); else if (statbuf.st_size != (TWO_GB + 100 + 5)) error (EXIT_FAILURE, 0, "stat reported size %lld instead of %lld.", (long long int) statbuf.st_size, (TWO_GB + 100 + 5)); test_ftello (); return 0; }