X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=tests%2Ftest-dup2.c;h=9600c850b16d0e5582e1528e0566ec2ed4ab3a1c;hb=38e8c084b95e98c4e763df8cfc43a141aa93fc5f;hp=b65fcad614e6f29941703ec4abac463a326ba1e0;hpb=1d0664a751fdfdcae30e22a5e6bd82f442111b36;p=gnulib.git diff --git a/tests/test-dup2.c b/tests/test-dup2.c index b65fcad61..9600c850b 100644 --- a/tests/test-dup2.c +++ b/tests/test-dup2.c @@ -1,5 +1,5 @@ /* Test duplicating file descriptors. - Copyright (C) 2009 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 @@ -28,14 +28,16 @@ SIGNATURE_CHECK (dup2, int, (int, int)); #include "binary-io.h" -#if GNULIB_CLOEXEC +#if GNULIB_TEST_CLOEXEC # include "cloexec.h" #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 +/* Get _get_osfhandle. */ +# include "msvc-nothrow.h" #endif #include "macros.h" @@ -45,7 +47,7 @@ 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; @@ -57,12 +59,13 @@ is_open (int fd) #endif } +#if GNULIB_TEST_CLOEXEC /* Return non-zero if FD is open and inheritable across exec/spawn. */ static int is_inheritable (int fd) { -#if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__ - /* On Win32, the initial state of unassigned standard file +# if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__ + /* 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); @@ -70,14 +73,15 @@ is_inheritable (int fd) if (h == INVALID_HANDLE_VALUE || GetHandleInformation (h, &flags) == 0) return 0; return (flags & HANDLE_FLAG_INHERIT) != 0; -#else -# ifndef F_GETFD -# error Please port fcntl to your platform -# endif +# else +# ifndef F_GETFD +# error Please port fcntl to your platform +# endif int i = fcntl (fd, F_GETFD); return 0 <= i && (i & FD_CLOEXEC) == 0; -#endif +# endif } +#endif /* GNULIB_TEST_CLOEXEC */ #if !O_BINARY # define setmode(f,m) zero () @@ -118,6 +122,10 @@ 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); @@ -159,7 +167,7 @@ main (void) ASSERT (read (fd, buffer, 1) == 1); ASSERT (*buffer == '2'); -#if GNULIB_CLOEXEC +#if GNULIB_TEST_CLOEXEC /* Any new fd created by dup2 must not be cloexec. */ ASSERT (close (fd + 2) == 0); ASSERT (dup_cloexec (fd) == fd + 1); @@ -167,7 +175,12 @@ main (void) ASSERT (dup2 (fd + 1, fd + 1) == fd + 1); ASSERT (!is_inheritable (fd + 1)); ASSERT (dup2 (fd + 1, fd + 2) == fd + 2); + ASSERT (!is_inheritable (fd + 1)); ASSERT (is_inheritable (fd + 2)); + errno = 0; + ASSERT (dup2 (fd + 1, -1) == -1); + ASSERT (errno == EBADF); + ASSERT (!is_inheritable (fd + 1)); #endif /* On systems that distinguish between text and binary mode, dup2