X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=tests%2Ftest-dup2.c;h=e2ad88bccaf217d880e61548211530d2176f9368;hb=c39048baf36b2bc4ebdf3956b096d5a675e01de4;hp=a4aca82dfb2dd07ebde4aeef0e4e746696af8064;hpb=89ae4589dd58d12e7cbcf0e92c1d828c1e430f97;p=gnulib.git diff --git a/tests/test-dup2.c b/tests/test-dup2.c index a4aca82df..e2ad88bcc 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) 2009-2011 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 @@ -25,11 +25,12 @@ SIGNATURE_CHECK (dup2, int, (int, int)); #include #include -#include -#include #include "binary-io.h" -#include "cloexec.h" + +#if GNULIB_TEST_CLOEXEC +# include "cloexec.h" +#endif #if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__ /* Get declarations of the Win32 API functions. */ @@ -37,17 +38,7 @@ SIGNATURE_CHECK (dup2, int, (int, int)); # include #endif -#define ASSERT(expr) \ - do \ - { \ - if (!(expr)) \ - { \ - fprintf (stderr, "%s:%d: assertion failed\n", __FILE__, __LINE__); \ - fflush (stderr); \ - abort (); \ - } \ - } \ - while (0) +#include "macros.h" /* Return non-zero if FD is open. */ static int @@ -66,11 +57,12 @@ 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__ +# if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__ /* On Win32, 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. */ @@ -79,14 +71,15 @@ 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 () @@ -168,6 +161,7 @@ main (void) ASSERT (read (fd, buffer, 1) == 1); ASSERT (*buffer == '2'); +#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); @@ -175,7 +169,13 @@ 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 reuses the mode of the source. */