2004-12-15 Steven Munroe <sjmunroe@us.ibm.com>
[glibc.git] / io / test-lfs.c
bloba4669c3984d95e3035282cfdede3bbd2260556af
1 /* Some basic tests for LFS.
2 Copyright (C) 2000, 2001 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4 Contributed by Andreas Jaeger <aj@suse.de>, 2000.
6 The GNU C Library is free software; you can redistribute it and/or
7 modify it under the terms of the GNU Lesser General Public
8 License as published by the Free Software Foundation; either
9 version 2.1 of the License, or (at your option) any later version.
11 The GNU C Library is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 Lesser General Public License for more details.
16 You should have received a copy of the GNU Lesser General Public
17 License along with the GNU C Library; if not, write to the Free
18 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
19 02111-1307 USA. */
21 #include <unistd.h>
22 #include <stdlib.h>
23 #include <sys/types.h>
24 #include <sys/stat.h>
25 #include <fcntl.h>
26 #include <error.h>
27 #include <errno.h>
28 #include <sys/resource.h>
30 /* Prototype for our test function. */
31 extern void do_prepare (int argc, char *argv[]);
32 extern int do_test (int argc, char *argv[]);
34 /* We have a preparation function. */
35 #define PREPARE do_prepare
37 /* We might need a bit longer timeout. */
38 #define TIMEOUT 20 /* sec */
40 /* This defines the `main' function and some more. */
41 #include <test-skeleton.c>
43 /* These are for the temporary file we generate. */
44 char *name;
45 int fd;
47 /* 2^31 = 2GB. */
48 #define TWO_GB 2147483648LL
50 void
51 do_prepare (int argc, char *argv[])
53 char name_len;
54 struct rlimit64 rlim;
56 name_len = strlen (test_dir);
57 name = malloc (name_len + sizeof ("/lfsXXXXXX"));
58 mempcpy (mempcpy (name, test_dir, name_len),
59 "/lfsXXXXXX", sizeof ("/lfsXXXXXX"));
60 add_temp_file (name);
62 /* Open our test file. */
63 fd = mkstemp64 (name);
64 if (fd == -1)
66 if (errno == ENOSYS)
68 /* Fail silently. */
69 error (0, 0, "open64 is not supported");
70 exit (EXIT_SUCCESS);
72 else
73 error (EXIT_FAILURE, errno, "cannot create temporary file");
76 if (getrlimit64 (RLIMIT_FSIZE, &rlim) != 0)
78 error (0, errno, "cannot get resource limit");
79 exit (0);
81 if (rlim.rlim_cur < TWO_GB + 200)
83 rlim.rlim_cur = TWO_GB + 200;
84 if (setrlimit64 (RLIMIT_FSIZE, &rlim) != 0)
86 error (0, errno, "cannot reset file size limits");
87 exit (0);
92 static void
93 test_ftello (void)
95 FILE *f;
96 int ret;
97 off64_t pos;
99 f = fopen64 (name, "w");
101 ret = fseeko64 (f, TWO_GB+100, SEEK_SET);
102 if (ret == -1 && errno == ENOSYS)
104 error (0, 0, "fseeko64 is not supported.");
105 exit (EXIT_SUCCESS);
107 if (ret == -1 && errno == EINVAL)
109 error (0, 0, "LFS seems not to be supported");
110 exit (EXIT_SUCCESS);
112 if (ret == -1)
114 error (0, errno, "fseeko64 failed with error");
115 exit (EXIT_FAILURE);
118 ret = fwrite ("Hello", 1, 5, f);
119 if (ret == -1 && errno == EFBIG)
121 error (0, errno, "LFS seems not to be supported");
122 exit (EXIT_SUCCESS);
125 if (ret == -1 && errno == ENOSPC)
127 error (0, 0, "Not enough space to write file.");
128 exit (EXIT_SUCCESS);
131 if (ret != 5)
132 error (EXIT_FAILURE, errno, "Cannot write test string to large file");
134 pos = ftello64 (f);
136 if (pos != TWO_GB+105)
138 error (0, 0, "ftello64 gives wrong result.");
139 exit (EXIT_FAILURE);
142 fclose (f);
146 do_test (int argc, char *argv[])
148 int ret;
149 struct stat64 statbuf;
151 ret = lseek64 (fd, TWO_GB+100, SEEK_SET);
152 if (ret == -1 && errno == ENOSYS)
154 error (0, 0, "lseek64 is not supported.");
155 exit (EXIT_SUCCESS);
157 if (ret == -1 && errno == EINVAL)
159 error (0, 0, "LFS seems not to be supported.");
160 exit (EXIT_SUCCESS);
162 if (ret == -1)
164 error (0, errno, "lseek64 failed with error");
165 exit (EXIT_FAILURE);
168 ret = write (fd, "Hello", 5);
169 if (ret == -1 && errno == EFBIG)
171 error (0, 0, "LFS seems not to be supported.");
172 exit (EXIT_SUCCESS);
175 if (ret == -1 && errno == ENOSPC)
177 error (0, 0, "Not enough space to write file.");
178 exit (EXIT_SUCCESS);
181 if (ret != 5)
182 error (EXIT_FAILURE, errno, "cannot write test string to large file");
184 ret = close (fd);
186 if (ret == -1)
187 error (EXIT_FAILURE, errno, "error closing file");
189 ret = stat64 (name, &statbuf);
191 if (ret == -1 && (errno == ENOSYS || errno == EOVERFLOW))
192 error (0, 0, "stat64 is not supported.");
193 else if (ret == -1)
194 error (EXIT_FAILURE, errno, "cannot stat file `%s'", name);
195 else if (statbuf.st_size != (TWO_GB + 100 + 5))
196 error (EXIT_FAILURE, 0, "stat reported size %lld instead of %lld.",
197 (long long int) statbuf.st_size, (TWO_GB + 100 + 5));
199 test_ftello ();
201 return 0;