2004-12-16 Roland McGrath <roland@redhat.com>
[glibc.git] / io / test-utime.c
blob2f8aa57266e7758daceb454506ac0765a7bca17d
1 /* Copyright (C) 1994,1996,1997,2000,2002,2003 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Lesser General Public
6 License as published by the Free Software Foundation; either
7 version 2.1 of the License, or (at your option) any later version.
9 The GNU C Library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Lesser General Public License for more details.
14 You should have received a copy of the GNU Lesser General Public
15 License along with the GNU C Library; if not, write to the Free
16 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
17 02111-1307 USA. */
19 #include <fcntl.h>
20 #include <stdio.h>
21 #include <stdlib.h>
22 #include <sys/stat.h>
23 #include <unistd.h>
24 #include <utime.h>
25 #include <time.h>
27 int
28 main (int argc, char *argv[])
30 char file[L_tmpnam];
31 struct utimbuf ut;
32 struct stat st;
33 struct stat stnow;
34 time_t now1, now2;
35 int fd;
37 if (tmpnam (file) == 0)
39 perror ("tmpnam");
40 return 1;
43 fd = creat (file, 0666);
44 if (fd < 0)
46 perror ("creat");
47 return 1;
49 close (fd);
51 /* Test utime with arg */
52 ut.actime = 500000000;
53 ut.modtime = 500000001;
54 if (utime (file, &ut))
56 perror ("utime");
57 remove (file);
58 return 1;
61 if (stat (file, &st))
63 perror ("stat");
64 remove (file);
65 return 1;
68 /* Test utime with NULL.
69 Since there's a race condition possible here, we check
70 the time before and after the call to utime. */
71 now1 = time (NULL);
72 if (now1 == (time_t)-1)
74 perror ("time");
75 remove (file);
76 return 1;
79 /* The clocks used to set the modification time and that used in the
80 time() call need not be the same. They need not have the same
81 precision. Therefore we delay the following operation by one
82 second which makes sure we can compare with second precision. */
83 sleep (1);
85 if (utime (file, NULL))
87 perror ("utime NULL");
88 remove (file);
89 return 1;
92 sleep (1);
94 now2 = time (NULL);
95 if (now2 == (time_t)-1)
97 perror ("time");
98 remove (file);
99 return 1;
102 if (stat (file, &stnow))
104 perror ("stat");
105 remove (file);
106 return 1;
109 remove (file);
111 if (st.st_mtime != ut.modtime)
113 printf ("modtime %ld != %ld\n", st.st_mtime, ut.modtime);
114 return 1;
117 if (st.st_atime != ut.actime)
119 printf ("actime %ld != %ld\n", st.st_atime, ut.actime);
120 return 1;
123 if (stnow.st_mtime < now1 || stnow.st_mtime > now2)
125 printf ("modtime %ld <%ld >%ld\n", stnow.st_mtime, now1, now2);
126 return 1;
129 if (stnow.st_atime < now1 || stnow.st_atime > now2)
131 printf ("actime %ld <%ld >%ld\n", stnow.st_atime, now1, now2);
132 return 1;
135 puts ("Test succeeded.");
136 return 0;