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authorUlrich Drepper <drepper@redhat.com>2000-05-29 07:31:53 +0000
committerUlrich Drepper <drepper@redhat.com>2000-05-29 07:31:53 +0000
commit08c7f6b0082b1b645348518fdc42643b5580d87c (patch)
treeb5280480fa7790ff6f92029378b1311d870c2982 /posix/tst-spawn.c
parent079199de5cdf96f85e29ecedafc69b2fb3004f2b (diff)
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Update.
2000-05-29 Ulrich Drepper <drepper@redhat.com> * posix/Makefile (tests): Add tst-spawn. (tst-spawn-ARGS): New variable. * posix/tst-spawn.c: New file. * posix/spawn_faction_addclose.c: Correctly account for new entry. * posix/spawn_faction_adddup2.c: Likewise. * posix/spawn_faction_addopen.c: Likewise. * posix/spawni.c: Correctly test for success of dup2 calls. * posix/tst-preadwrite.c: Check success of malloc call.
Diffstat (limited to 'posix/tst-spawn.c')
-rw-r--r--posix/tst-spawn.c275
1 files changed, 275 insertions, 0 deletions
diff --git a/posix/tst-spawn.c b/posix/tst-spawn.c
new file mode 100644
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+++ b/posix/tst-spawn.c
@@ -0,0 +1,275 @@
+/* Tests for spawn.
+ Copyright (C) 2000 Free Software Foundation, Inc.
+ Contributed by Ulrich Drepper <drepper@cygnus.com>, 2000.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Library General Public License as
+ published by the Free Software Foundation; either version 2 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
+ Library General Public License for more details.
+
+ You should have received a copy of the GNU Library General Public
+ License along with the GNU C Library; see the file COPYING.LIB. If not,
+ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
+
+#include <errno.h>
+#include <error.h>
+#include <fcntl.h>
+#include <spawn.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <wait.h>
+#include <sys/param.h>
+
+
+/* Nonzero if the program gets called via `exec'. */
+static int restart;
+
+
+#define CMDLINE_OPTIONS \
+ { "restart", no_argument, &restart, 1 },
+
+/* 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
+
+#include "../test-skeleton.c"
+
+
+/* Name of the temporary files. */
+static char *name1;
+static char *name2;
+static char *name3;
+
+/* The contents of our files. */
+static const char fd1string[] = "This file should get closed";
+static const char fd2string[] = "This file should stay opened";
+static const char fd3string[] = "This file will be opened";
+
+
+/* We have a preparation function. */
+void
+do_prepare (int argc, char *argv[])
+{
+ char name_len;
+
+ name_len = strlen (test_dir);
+ name1 = (char *) malloc (name_len + sizeof ("/spawnXXXXXX"));
+ mempcpy (mempcpy (name1, test_dir, name_len),
+ "/spawnXXXXXX", sizeof ("/spawnXXXXXX"));
+ add_temp_file (name1);
+
+ name2 = (char *) malloc (name_len + sizeof ("/spawnXXXXXX"));
+ mempcpy (mempcpy (name2, test_dir, name_len),
+ "/spawnXXXXXX", sizeof ("/spawnXXXXXX"));
+ add_temp_file (name2);
+
+ name3 = (char *) malloc (name_len + sizeof ("/spawnXXXXXX"));
+ mempcpy (mempcpy (name3, test_dir, name_len),
+ "/spawnXXXXXX", sizeof ("/spawnXXXXXX"));
+ add_temp_file (name3);
+}
+
+
+static int
+handle_restart (const char *fd1s, const char *fd2s, const char *fd3s,
+ const char *fd4s, const char *name)
+{
+ char buf[100];
+ int fd1;
+ int fd2;
+ int fd3;
+ int fd4;
+
+ /* First get the descriptors. */
+ fd1 = atol (fd1s);
+ fd2 = atol (fd2s);
+ fd3 = atol (fd3s);
+ fd4 = atol (fd4s);
+
+ /* Sanity check. */
+ if (fd1 == fd2)
+ error (EXIT_FAILURE, 0, "value of fd1 and fd2 is the same");
+ if (fd1 == fd3)
+ error (EXIT_FAILURE, 0, "value of fd1 and fd3 is the same");
+ if (fd1 == fd4)
+ error (EXIT_FAILURE, 0, "value of fd1 and fd4 is the same");
+ if (fd2 == fd3)
+ error (EXIT_FAILURE, 0, "value of fd2 and fd3 is the same");
+ if (fd2 == fd4)
+ error (EXIT_FAILURE, 0, "value of fd2 and fd4 is the same");
+ if (fd3 == fd4)
+ error (EXIT_FAILURE, 0, "value of fd3 and fd4 is the same");
+
+ /* First the easy part: read from the file descriptor which is
+ supposed to be open. */
+ if (lseek (fd2, 0, SEEK_CUR) != strlen (fd2string))
+ error (EXIT_FAILURE, errno, "file 2 not in right position");
+ /* The duped descriptor must have the same position. */
+ if (lseek (fd4, 0, SEEK_CUR) != strlen (fd2string))
+ error (EXIT_FAILURE, errno, "file 4 not in right position");
+ if (lseek (fd2, 0, SEEK_SET) != 0)
+ error (EXIT_FAILURE, 0, "cannot reset position in file 2");
+ if (lseek (fd4, 0, SEEK_CUR) != 0)
+ error (EXIT_FAILURE, errno, "file 4 not set back, too");
+ if (read (fd2, buf, sizeof buf) != strlen (fd2string))
+ error (EXIT_FAILURE, 0, "cannot read file 2");
+ if (memcmp (fd2string, buf, strlen (fd2string)) != 0)
+ error (EXIT_FAILURE, 0, "file 2 does not match");
+
+ /* Now read from the third file. */
+ if (read (fd3, buf, sizeof buf) != strlen (fd3string))
+ error (EXIT_FAILURE, 0, "cannot read file 3");
+ if (memcmp (fd3string, buf, strlen (fd3string)) != 0)
+ error (EXIT_FAILURE, 0, "file 3 does not match");
+ /* Try to write to the file. This should not be allowed. */
+ if (write (fd3, "boo!", 4) != -1 || errno != EBADF)
+ error (EXIT_FAILURE, 0, "file 3 is writable");
+
+ /* Now try to read the first file. First make sure it is not opened. */
+ if (lseek (fd1, 0, SEEK_CUR) != (off_t) -1 || errno != EBADF)
+ error (EXIT_FAILURE, 0, "file 1 (%d) is not closed", fd1);
+
+ /* Now open the file and read it. */
+ fd1 = open (name, O_RDONLY);
+ if (fd1 == -1)
+ error (EXIT_FAILURE, errno,
+ "cannot open first file \"%s\" for verification", name);
+
+ if (read (fd1, buf, sizeof buf) != strlen (fd1string))
+ error (EXIT_FAILURE, errno, "cannot read file 1");
+ if (memcmp (fd1string, buf, strlen (fd1string)) != 0)
+ error (EXIT_FAILURE, 0, "file 1 does not match");
+
+ return 0;
+}
+
+
+int
+do_test (int argc, char *argv[])
+{
+ pid_t pid;
+ int fd1;
+ int fd2;
+ int fd3;
+ int fd4;
+ int status;
+ posix_spawn_file_actions_t actions;
+ char fd1name[18];
+ char fd2name[18];
+ char fd3name[18];
+ char fd4name[18];
+ char *spargv[12];
+
+ /* We must have
+ - five parameters left of called initially
+ + --
+ + path for ld.so
+ + "--library-path"
+ + the library path
+ + the application name
+ - seven parameters left if called through re-execution
+ + --direct
+ + --restart
+ + file descriptor number which is supposed to be closed
+ + the open file descriptor
+ + the newly opened file descriptor
+ + thhe duped second descriptor
+ + the name of the closed descriptor
+ */
+ if (argc != (restart ? 8 : 6))
+ error (EXIT_FAILURE, 0, "wrong number of arguments (%d)", argc);
+
+ if (restart)
+ return handle_restart (argv[3], argv[4], argv[5], argv[6], argv[7]);
+
+ /* Prepare the test. We are creating two files: one which file descriptor
+ will be marked with FD_CLOEXEC, another which is not. */
+
+ /* Open our test files. */
+ fd1 = mkstemp (name1);
+ if (fd1 == -1)
+ error (EXIT_FAILURE, errno, "cannot open test file `%s'", name1);
+ fd2 = mkstemp (name2);
+ if (fd2 == -1)
+ error (EXIT_FAILURE, errno, "cannot open test file `%s'", name2);
+ fd3 = mkstemp (name3);
+ if (fd3 == -1)
+ error (EXIT_FAILURE, errno, "cannot open test file `%s'", name3);
+
+ /* Write something in the files. */
+ if (write (fd1, fd1string, strlen (fd1string)) != strlen (fd1string))
+ error (EXIT_FAILURE, errno, "cannot write to first file");
+ if (write (fd2, fd2string, strlen (fd2string)) != strlen (fd2string))
+ error (EXIT_FAILURE, errno, "cannot write to second file");
+ if (write (fd3, fd3string, strlen (fd3string)) != strlen (fd3string))
+ error (EXIT_FAILURE, errno, "cannot write to third file");
+
+ /* Close the third file. It'll be opened by `spawn'. */
+ close (fd3);
+
+ /* Tell `spawn' what to do. */
+ if (posix_spawn_file_actions_init (&actions) != 0)
+ error (EXIT_FAILURE, errno, "posix_spawn_file_actions_init");
+ /* Close `fd1'. */
+ if (posix_spawn_file_actions_addclose (&actions, fd1) != 0)
+ error (EXIT_FAILURE, errno, "posix_spawn_file_actions_addclose");
+ /* We want to open the third file. */
+ if (posix_spawn_file_actions_addopen (&actions, fd3, name3,
+ O_RDONLY, 0666) != 0)
+ error (EXIT_FAILURE, errno, "posix_spawn_file_actions_addopen");
+ /* We dup the second descriptor. */
+ fd4 = MAX (2, MAX (fd1, MAX (fd2, fd3))) + 1;
+ if (posix_spawn_file_actions_adddup2 (&actions, fd2, fd4) != 0)
+ error (EXIT_FAILURE, errno, "posix_spawn_file_actions_adddup2");
+
+ /* Now spawn the process. */
+ snprintf (fd1name, sizeof fd1name, "%d", fd1);
+ snprintf (fd2name, sizeof fd2name, "%d", fd2);
+ snprintf (fd3name, sizeof fd3name, "%d", fd3);
+ snprintf (fd4name, sizeof fd4name, "%d", fd4);
+
+ spargv[0] = argv[2];
+ spargv[1] = argv[3];
+ spargv[2] = argv[4];
+ spargv[3] = argv[5];
+ spargv[4] = (char *) "--direct";
+ spargv[5] = (char *) "--restart";
+ spargv[6] = fd1name;
+ spargv[7] = fd2name;
+ spargv[8] = fd3name;
+ spargv[9] = fd4name;
+ spargv[10] = name1;
+ spargv[11] = NULL;
+
+ if (posix_spawn (&pid, argv[2], &actions, NULL, spargv, environ) != 0)
+ error (EXIT_FAILURE, errno, "posix_spawn");
+
+ /* Cleanup. */
+ if (posix_spawn_file_actions_destroy (&actions) != 0)
+ error (EXIT_FAILURE, errno, "posix_spawn_file_actions_destroy");
+
+ /* Wait for the child. */
+ if (waitpid (pid, &status, 0) != pid)
+ error (EXIT_FAILURE, errno, "wrong child");
+
+ if (WTERMSIG (status) != 0)
+ error (EXIT_FAILURE, 0, "Child terminated incorrectly");
+ status = WEXITSTATUS (status);
+
+ /* Remove the test files. */
+ unlink (name1);
+ unlink (name2);
+ unlink (name3);
+
+ return status;
+}