diff options
Diffstat (limited to 'lib/open.c')
-rw-r--r-- | lib/open.c | 24 |
1 files changed, 19 insertions, 5 deletions
@@ -1,5 +1,5 @@ /* Open a descriptor to a file. - Copyright (C) 2007-2011 Free Software Foundation, Inc. + Copyright (C) 2007-2013 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 @@ -16,22 +16,27 @@ /* Written by Bruno Haible <bruno@clisp.org>, 2007. */ +/* If the user's config.h happens to include <fcntl.h>, let it include only + the system's <fcntl.h> here, so that orig_open doesn't recurse to + rpl_open. */ +#define __need_system_fcntl_h #include <config.h> /* Get the original definition of open. It might be defined as a macro. */ -#define __need_system_fcntl_h #include <fcntl.h> -#undef __need_system_fcntl_h #include <sys/types.h> +#undef __need_system_fcntl_h -static inline int +static int orig_open (const char *filename, int flags, mode_t mode) { return open (filename, flags, mode); } /* Specification. */ -#include <fcntl.h> +/* Write "fcntl.h" here, not <fcntl.h>, otherwise OSF/1 5.1 DTK cc eliminates + this include because of the preliminary #include <fcntl.h> above. */ +#include "fcntl.h" #include <errno.h> #include <stdarg.h> @@ -63,6 +68,15 @@ open (const char *filename, int flags, ...) va_end (arg); } +#if GNULIB_defined_O_NONBLOCK + /* The only known platform that lacks O_NONBLOCK is mingw, but it + also lacks named pipes and Unix sockets, which are the only two + file types that require non-blocking handling in open(). + Therefore, it is safe to ignore O_NONBLOCK here. It is handy + that mingw also lacks openat(), so that is also covered here. */ + flags &= ~O_NONBLOCK; +#endif + #if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__ if (strcmp (filename, "/dev/null") == 0) filename = "NUL"; |