--- /dev/null
+/* Tests for exec.
+ 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 <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <wait.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;
+
+/* The contents of our files. */
+static const char fd1string[] = "This file should get closed";
+static const char fd2string[] = "This file should stay opened";
+
+
+/* We have a preparation function. */
+void
+do_prepare (int argc, char *argv[])
+{
+ char name_len;
+
+ name_len = strlen (test_dir);
+ name1 = malloc (name_len + sizeof ("/execXXXXXX"));
+ mempcpy (mempcpy (name1, test_dir, name_len),
+ "/execXXXXXX", sizeof ("/execXXXXXX"));
+ add_temp_file (name1);
+
+ name2 = malloc (name_len + sizeof ("/execXXXXXX"));
+ mempcpy (mempcpy (name2, test_dir, name_len),
+ "/execXXXXXX", sizeof ("/execXXXXXX"));
+ add_temp_file (name2);
+}
+
+
+static int
+handle_restart (const char *fd1s, const char *fd2s, const char *name)
+{
+ char buf[100];
+ int fd1;
+ int fd2;
+
+ /* First get the descriptors. */
+ fd1 = atol (fd1s);
+ fd2 = atol (fd2s);
+
+ /* Sanity check. */
+ if (fd1 == fd2)
+ error (EXIT_FAILURE, 0, "value of fd1 and fd2 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");
+ if (lseek (fd2, 0, SEEK_SET) != 0)
+ error (EXIT_FAILURE, 0, "cannot reset position in file 2");
+ 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");
+
+ /* No 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 flags;
+ int status;
+
+ /* We must have
+ - five parameters left of called initially
+ + --
+ + path for ld.so
+ + "--library-path"
+ + the library path
+ + the application name
+ - five parameters left if called through re-execution
+ + --direct
+ + --restart
+ + file descriptor number which is supposed to be closed
+ + the open file descriptor
+ + the name of the closed desriptor
+ */
+ if (argc != 6)
+ error (EXIT_FAILURE, 0, "wrong number of arguments (%d)", argc);
+
+ if (restart)
+ return handle_restart (argv[3], argv[4], argv[5]);
+
+ /* 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);
+
+ /* Set the bit. */
+ flags = fcntl (fd1, F_GETFD, 0);
+ if (flags < 0)
+ error (EXIT_FAILURE, errno, "cannot get flags");
+ flags |= FD_CLOEXEC;
+ if (fcntl (fd1, F_SETFD, flags) < 0)
+ error (EXIT_FAILURE, errno, "cannot set flags");
+
+ /* 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");
+
+ /* We want to test the `exec' function. To do this we restart the program
+ with an additional parameter. But first create another process. */
+ pid = fork ();
+ if (pid == 0)
+ {
+ char fd1name[18];
+ char fd2name[18];
+
+ snprintf (fd1name, sizeof fd1name, "%d", fd1);
+ snprintf (fd2name, sizeof fd2name, "%d", fd2);
+
+ /* This is the child. Construct the command line. */
+ execl (argv[2], argv[2], argv[3], argv[4], argv[5], "--direct",
+ "--restart", fd1name, fd2name, name1, NULL);
+
+ error (EXIT_FAILURE, errno, "cannot exec");
+ }
+ else if (pid == (pid_t) -1)
+ error (EXIT_FAILURE, errno, "cannot fork");
+
+ /* 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);
+
+ return status;
+}
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