diff options
Diffstat (limited to 'tests/test-dup2.c')
| -rw-r--r-- | tests/test-dup2.c | 21 |
1 files changed, 16 insertions, 5 deletions
diff --git a/tests/test-dup2.c b/tests/test-dup2.c index e2ad88b..ecb2692 100644 --- a/tests/test-dup2.c +++ b/tests/test-dup2.c @@ -1,5 +1,5 @@ /* Test duplicating file descriptors. - Copyright (C) 2009-2011 Free Software Foundation, Inc. + Copyright (C) 2009-2013 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 @@ -26,6 +26,10 @@ SIGNATURE_CHECK (dup2, int, (int, int)); #include <errno.h> #include <fcntl.h> +#if HAVE_SYS_RESOURCE_H +# include <sys/resource.h> +#endif + #include "binary-io.h" #if GNULIB_TEST_CLOEXEC @@ -33,9 +37,11 @@ SIGNATURE_CHECK (dup2, int, (int, int)); #endif #if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__ -/* Get declarations of the Win32 API functions. */ +/* Get declarations of the native Windows API functions. */ # define WIN32_LEAN_AND_MEAN # include <windows.h> +/* Get _get_osfhandle. */ +# include "msvc-nothrow.h" #endif #include "macros.h" @@ -45,7 +51,7 @@ static int is_open (int fd) { #if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__ - /* On Win32, the initial state of unassigned standard file + /* On native Windows, the initial state of unassigned standard file descriptors is that they are open but point to an INVALID_HANDLE_VALUE, and there is no fcntl. */ return (HANDLE) _get_osfhandle (fd) != INVALID_HANDLE_VALUE; @@ -63,7 +69,7 @@ static int is_inheritable (int fd) { # if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__ - /* On Win32, the initial state of unassigned standard file + /* On native Windows, the initial state of unassigned standard file descriptors is that they are open but point to an INVALID_HANDLE_VALUE, and there is no fcntl. */ HANDLE h = (HANDLE) _get_osfhandle (fd); @@ -101,6 +107,7 @@ main (void) { const char *file = "test-dup2.tmp"; char buffer[1]; + int bad_fd = getdtablesize (); int fd = open (file, O_CREAT | O_TRUNC | O_RDWR, 0600); /* Assume std descriptors were provided by invoker. */ @@ -120,6 +127,10 @@ main (void) errno = 0; ASSERT (dup2 (-1, fd) == -1); ASSERT (errno == EBADF); + close (99); + errno = 0; + ASSERT (dup2 (99, fd) == -1); + ASSERT (errno == EBADF); errno = 0; ASSERT (dup2 (AT_FDCWD, fd) == -1); ASSERT (errno == EBADF); @@ -140,7 +151,7 @@ main (void) ASSERT (dup2 (fd, -2) == -1); ASSERT (errno == EBADF); errno = 0; - ASSERT (dup2 (fd, 10000000) == -1); + ASSERT (dup2 (fd, bad_fd) == -1); ASSERT (errno == EBADF); /* Using dup2 can skip fds. */ |