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Diffstat (limited to 'REORG.TODO/io/test-lfs.c')
| -rw-r--r-- | REORG.TODO/io/test-lfs.c | 241 |
1 files changed, 241 insertions, 0 deletions
diff --git a/REORG.TODO/io/test-lfs.c b/REORG.TODO/io/test-lfs.c new file mode 100644 index 0000000000..14773544da --- /dev/null +++ b/REORG.TODO/io/test-lfs.c @@ -0,0 +1,241 @@ +/* Some basic tests for LFS. + Copyright (C) 2000-2017 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 = xmalloc (name_len + sizeof ("/lfsXXXXXX")); + mempcpy (mempcpy (name, test_dir, name_len), + "/lfsXXXXXX", sizeof ("/lfsXXXXXX")); + + /* 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"); + } + add_temp_file (name); + + 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, fd2; + 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); + } + off64_t offset64 = lseek64 (fd, 0, SEEK_CUR); + if (offset64 != TWO_GB + 100) + { + error (0, 0, "lseek64 did not return expected offset"); + exit (EXIT_FAILURE); + } + off_t offset = lseek (fd, 0, SEEK_CUR); + if (sizeof (off_t) < sizeof (off64_t)) + { + if (offset != -1 || errno != EOVERFLOW) + { + error (0, 0, "lseek did not fail with EOVERFLOW"); + exit (EXIT_FAILURE); + } + } + else + if (offset != TWO_GB + 100) + { + error (0, 0, "lseek did not return expected offset"); + 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)); + + fd2 = openat64 (AT_FDCWD, name, O_RDWR); + if (fd2 == -1) + { + if (errno == ENOSYS) + { + /* Silently ignore this test. */ + error (0, 0, "openat64 is not supported"); + } + else + error (EXIT_FAILURE, errno, "openat64 failed to open big file"); + } + else + { + ret = close (fd2); + + if (ret == -1) + error (EXIT_FAILURE, errno, "error closing file"); + } + + test_ftello (); + + return 0; +} |