2 Copyright (C) 2000 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4 Contributed by Ulrich Drepper <drepper@cygnus.com>, 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
29 #include <sys/param.h>
32 /* Nonzero if the program gets called via `exec'. */
36 #define CMDLINE_OPTIONS \
37 { "restart", no_argument, &restart, 1 },
39 /* Prototype for our test function. */
40 extern void do_prepare (int argc, char *argv[]);
41 extern int do_test (int argc, char *argv[]);
43 /* We have a preparation function. */
44 #define PREPARE do_prepare
46 #include "../test-skeleton.c"
49 /* Name of the temporary files. */
54 /* The contents of our files. */
55 static const char fd1string[] = "This file should get closed";
56 static const char fd2string[] = "This file should stay opened";
57 static const char fd3string[] = "This file will be opened";
60 /* We have a preparation function. */
62 do_prepare (int argc, char *argv[])
66 name_len = strlen (test_dir);
67 name1 = (char *) malloc (name_len + sizeof ("/spawnXXXXXX"));
68 mempcpy (mempcpy (name1, test_dir, name_len),
69 "/spawnXXXXXX", sizeof ("/spawnXXXXXX"));
70 add_temp_file (name1);
72 name2 = (char *) malloc (name_len + sizeof ("/spawnXXXXXX"));
73 mempcpy (mempcpy (name2, test_dir, name_len),
74 "/spawnXXXXXX", sizeof ("/spawnXXXXXX"));
75 add_temp_file (name2);
77 name3 = (char *) malloc (name_len + sizeof ("/spawnXXXXXX"));
78 mempcpy (mempcpy (name3, test_dir, name_len),
79 "/spawnXXXXXX", sizeof ("/spawnXXXXXX"));
80 add_temp_file (name3);
85 handle_restart (const char *fd1s, const char *fd2s, const char *fd3s,
86 const char *fd4s, const char *name)
94 /* First get the descriptors. */
102 error (EXIT_FAILURE, 0, "value of fd1 and fd2 is the same");
104 error (EXIT_FAILURE, 0, "value of fd1 and fd3 is the same");
106 error (EXIT_FAILURE, 0, "value of fd1 and fd4 is the same");
108 error (EXIT_FAILURE, 0, "value of fd2 and fd3 is the same");
110 error (EXIT_FAILURE, 0, "value of fd2 and fd4 is the same");
112 error (EXIT_FAILURE, 0, "value of fd3 and fd4 is the same");
114 /* First the easy part: read from the file descriptor which is
115 supposed to be open. */
116 if (lseek (fd2, 0, SEEK_CUR) != strlen (fd2string))
117 error (EXIT_FAILURE, errno, "file 2 not in right position");
118 /* The duped descriptor must have the same position. */
119 if (lseek (fd4, 0, SEEK_CUR) != strlen (fd2string))
120 error (EXIT_FAILURE, errno, "file 4 not in right position");
121 if (lseek (fd2, 0, SEEK_SET) != 0)
122 error (EXIT_FAILURE, 0, "cannot reset position in file 2");
123 if (lseek (fd4, 0, SEEK_CUR) != 0)
124 error (EXIT_FAILURE, errno, "file 4 not set back, too");
125 if (read (fd2, buf, sizeof buf) != strlen (fd2string))
126 error (EXIT_FAILURE, 0, "cannot read file 2");
127 if (memcmp (fd2string, buf, strlen (fd2string)) != 0)
128 error (EXIT_FAILURE, 0, "file 2 does not match");
130 /* Now read from the third file. */
131 if (read (fd3, buf, sizeof buf) != strlen (fd3string))
132 error (EXIT_FAILURE, 0, "cannot read file 3");
133 if (memcmp (fd3string, buf, strlen (fd3string)) != 0)
134 error (EXIT_FAILURE, 0, "file 3 does not match");
135 /* Try to write to the file. This should not be allowed. */
136 if (write (fd3, "boo!", 4) != -1 || errno != EBADF)
137 error (EXIT_FAILURE, 0, "file 3 is writable");
139 /* Now try to read the first file. First make sure it is not opened. */
140 if (lseek (fd1, 0, SEEK_CUR) != (off_t) -1 || errno != EBADF)
141 error (EXIT_FAILURE, 0, "file 1 (%d) is not closed", fd1);
143 /* Now open the file and read it. */
144 fd1 = open (name, O_RDONLY);
146 error (EXIT_FAILURE, errno,
147 "cannot open first file \"%s\" for verification", name);
149 if (read (fd1, buf, sizeof buf) != strlen (fd1string))
150 error (EXIT_FAILURE, errno, "cannot read file 1");
151 if (memcmp (fd1string, buf, strlen (fd1string)) != 0)
152 error (EXIT_FAILURE, 0, "file 1 does not match");
159 do_test (int argc, char *argv[])
167 posix_spawn_file_actions_t actions;
175 - four parameters left of called initially
179 + the application name
180 - five parameters left if called through re-execution
181 + file descriptor number which is supposed to be closed
182 + the open file descriptor
183 + the newly opened file descriptor
184 + thhe duped second descriptor
185 + the name of the closed descriptor
187 if (argc != (restart ? 6 : 5))
188 error (EXIT_FAILURE, 0, "wrong number of arguments (%d)", argc);
191 return handle_restart (argv[1], argv[2], argv[3], argv[4], argv[5]);
193 /* Prepare the test. We are creating two files: one which file descriptor
194 will be marked with FD_CLOEXEC, another which is not. */
196 /* Open our test files. */
197 fd1 = mkstemp (name1);
199 error (EXIT_FAILURE, errno, "cannot open test file `%s'", name1);
200 fd2 = mkstemp (name2);
202 error (EXIT_FAILURE, errno, "cannot open test file `%s'", name2);
203 fd3 = mkstemp (name3);
205 error (EXIT_FAILURE, errno, "cannot open test file `%s'", name3);
207 /* Write something in the files. */
208 if (write (fd1, fd1string, strlen (fd1string)) != strlen (fd1string))
209 error (EXIT_FAILURE, errno, "cannot write to first file");
210 if (write (fd2, fd2string, strlen (fd2string)) != strlen (fd2string))
211 error (EXIT_FAILURE, errno, "cannot write to second file");
212 if (write (fd3, fd3string, strlen (fd3string)) != strlen (fd3string))
213 error (EXIT_FAILURE, errno, "cannot write to third file");
215 /* Close the third file. It'll be opened by `spawn'. */
218 /* Tell `spawn' what to do. */
219 if (posix_spawn_file_actions_init (&actions) != 0)
220 error (EXIT_FAILURE, errno, "posix_spawn_file_actions_init");
222 if (posix_spawn_file_actions_addclose (&actions, fd1) != 0)
223 error (EXIT_FAILURE, errno, "posix_spawn_file_actions_addclose");
224 /* We want to open the third file. */
225 if (posix_spawn_file_actions_addopen (&actions, fd3, name3,
226 O_RDONLY, 0666) != 0)
227 error (EXIT_FAILURE, errno, "posix_spawn_file_actions_addopen");
228 /* We dup the second descriptor. */
229 fd4 = MAX (2, MAX (fd1, MAX (fd2, fd3))) + 1;
230 if (posix_spawn_file_actions_adddup2 (&actions, fd2, fd4) != 0)
231 error (EXIT_FAILURE, errno, "posix_spawn_file_actions_adddup2");
233 /* Now spawn the process. */
234 snprintf (fd1name, sizeof fd1name, "%d", fd1);
235 snprintf (fd2name, sizeof fd2name, "%d", fd2);
236 snprintf (fd3name, sizeof fd3name, "%d", fd3);
237 snprintf (fd4name, sizeof fd4name, "%d", fd4);
243 spargv[4] = (char *) "--direct";
244 spargv[5] = (char *) "--restart";
252 if (posix_spawn (&pid, argv[1], &actions, NULL, spargv, environ) != 0)
253 error (EXIT_FAILURE, errno, "posix_spawn");
256 if (posix_spawn_file_actions_destroy (&actions) != 0)
257 error (EXIT_FAILURE, errno, "posix_spawn_file_actions_destroy");
259 /* Wait for the child. */
260 if (waitpid (pid, &status, 0) != pid)
261 error (EXIT_FAILURE, errno, "wrong child");
263 if (WTERMSIG (status) != 0)
264 error (EXIT_FAILURE, 0, "Child terminated incorrectly");
265 status = WEXITSTATUS (status);
267 /* Remove the test files. */