Set errno for ±Inf.
[glibc/history.git] / io / bug-ftw4.c
blob16aecf6ce208c083a0a5c4ecfdefb42669099ba3
1 /* Test if ftw function doesn't leak fds.
2 Copyright (C) 2003 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4 Contributed by Jakub Jelinek <jakub@redhat.com>, 2003.
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 <fcntl.h>
22 #include <ftw.h>
23 #include <stdlib.h>
24 #include <stdio.h>
25 #include <string.h>
26 #include <sys/stat.h>
27 #include <unistd.h>
29 static int cb_called;
31 static int
32 cb (const char *name, const struct stat64 *st, int type)
34 return cb_called++ & 1;
37 int
38 main (void)
40 char name[32] = "/tmp/ftwXXXXXX", *p;
41 int ret, i, result = 0, fd, fd1, fd2;
43 if (mkdtemp (name) == NULL)
45 printf ("Couldn't make temporary directory: %m\n");
46 exit (EXIT_FAILURE);
48 p = strchr (name, '\0');
49 strcpy (p, "/1");
50 if (mkdir (name, 0755) < 0)
52 printf ("Couldn't make temporary subdirectory: %m\n");
53 exit (EXIT_FAILURE);
55 *p = '\0';
57 ret = ftw64 (name, cb, 20);
58 if (ret != 1)
60 printf ("ftw64 returned %d instead of 1", ret);
61 result = 1;
64 fd = open (name, O_RDONLY);
65 if (fd < 0)
67 printf ("open failed: %m\n");
68 result = 1;
70 fd1 = open (name, O_RDONLY);
71 if (fd1 < 0)
73 printf ("open failed: %m\n");
74 result = 1;
76 else
77 close (fd1);
78 if (fd >= 0)
79 close (fd);
81 for (i = 0; i < 128; ++i)
83 ret = ftw64 (name, cb, 20);
84 if (ret != 1)
86 printf ("ftw64 returned %d instead of 1", ret);
87 result = 1;
91 fd = open (name, O_RDONLY);
92 if (fd < 0)
94 printf ("open failed: %m\n");
95 result = 1;
97 fd2 = open (name, O_RDONLY);
98 if (fd2 < 0)
100 printf ("open failed: %m\n");
101 result = 1;
103 else
104 close (fd2);
105 if (fd >= 0)
106 close (fd);
108 if (fd2 >= fd1 + 128)
110 printf ("ftw64 leaking fds: %d -> %d\n", fd1, fd2);
111 result = 1;
114 if (cb_called != 129 * 2)
116 printf ("callback called %d times\n", cb_called);
117 result = 1;
120 strcpy (p, "/1");
121 rmdir (name);
122 *p = '\0';
123 rmdir (name);
124 return result;