diff options
Diffstat (limited to 'gnulib/tests/test-popen-safer.c')
m--------- | gnulib | 0 | ||||
-rw-r--r-- | gnulib/tests/test-popen-safer.c | 76 |
2 files changed, 76 insertions, 0 deletions
diff --git a/gnulib b/gnulib deleted file mode 160000 -Subproject 443bc5ffcf7429e557f4a371b0661abe98ddbc1 diff --git a/gnulib/tests/test-popen-safer.c b/gnulib/tests/test-popen-safer.c new file mode 100644 index 0000000..b8071dc --- /dev/null +++ b/gnulib/tests/test-popen-safer.c @@ -0,0 +1,76 @@ +/* Test of opening a subcommand stream. + Copyright (C) 2009-2011 Free Software Foundation, Inc. + + This program is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + This program 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 General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see <http://www.gnu.org/licenses/>. */ + +/* Written by Eric Blake <ebb9@byu.net>, 2009. */ + +#include <config.h> + +/* Specification. */ +#include "stdio--.h" + +/* Helpers. */ +#include <sys/wait.h> +#include <unistd.h> + +/* This test intentionally closes stderr. So, we arrange to have fd 10 + (outside the range of interesting fd's during the test) set up to + duplicate the original stderr. */ + +#define BACKUP_STDERR_FILENO 10 +#define ASSERT_STREAM myerr +#include "macros.h" + +static FILE *myerr; + +int +main (int argc, char **argv) +{ + FILE *fp; + int status; + + /* We close fd 2 later, so save it in fd 10. */ + if (dup2 (STDERR_FILENO, BACKUP_STDERR_FILENO) != BACKUP_STDERR_FILENO + || (myerr = fdopen (BACKUP_STDERR_FILENO, "w")) == NULL) + return 2; + + ASSERT (fp = popen ("exit 0", "r")); + ASSERT (STDERR_FILENO < fileno (fp)); + status = pclose (fp); + ASSERT (WIFEXITED (status)); + ASSERT (!WEXITSTATUS (status)); + + ASSERT (fclose (stdin) == 0); + ASSERT (fp = popen ("exit 0", "r")); + ASSERT (STDERR_FILENO < fileno (fp)); + status = pclose (fp); + ASSERT (WIFEXITED (status)); + ASSERT (!WEXITSTATUS (status)); + + ASSERT (fclose (stdout) == 0); + ASSERT (fp = popen ("exit 0", "r")); + ASSERT (STDERR_FILENO < fileno (fp)); + status = pclose (fp); + ASSERT (WIFEXITED (status)); + ASSERT (!WEXITSTATUS (status)); + + ASSERT (fclose (stderr) == 0); + ASSERT (fp = popen ("exit 0", "r")); + ASSERT (STDERR_FILENO < fileno (fp)); + status = pclose (fp); + ASSERT (WIFEXITED (status)); + ASSERT (!WEXITSTATUS (status)); + return 0; +} |