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Add generic implementation of dirfd()

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Use existing HAVE_OPENDIR define to determine if a generic
implementation should be provided.  Cygwin for example has its own
implementation of opendir() and dirfd().

Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
This commit is contained in:
Sebastian Huber
2018-10-08 13:33:08 +02:00
parent 738fdc6a42
commit ab4fdab5d5
3 changed files with 56 additions and 12 deletions
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2
newlib/libc/posix/Makefile.am
View File

@@ -5,7 +5,7 @@ AUTOMAKE_OPTIONS = cygnus
INCLUDES = $(NEWLIB_CFLAGS) $(CROSS_CFLAGS) $(TARGET_CFLAGS)
GENERAL_SOURCES = \
closedir.c collate.c collcmp.c creat.c \
closedir.c collate.c collcmp.c creat.c dirfd.c \
fnmatch.c glob.c _isatty.c isatty.c \
opendir.c readdir.c readdir_r.c \
regcomp.c regerror.c regexec.c regfree.c \

28
newlib/libc/posix/Makefile.in
View File

@@ -74,14 +74,14 @@ lib_a_AR = $(AR) $(ARFLAGS)
lib_a_LIBADD =
am__objects_1 = lib_a-closedir.$(OBJEXT) lib_a-collate.$(OBJEXT) \
lib_a-collcmp.$(OBJEXT) lib_a-creat.$(OBJEXT) \
lib_a-fnmatch.$(OBJEXT) lib_a-glob.$(OBJEXT) \
lib_a-_isatty.$(OBJEXT) lib_a-isatty.$(OBJEXT) \
lib_a-opendir.$(OBJEXT) lib_a-readdir.$(OBJEXT) \
lib_a-readdir_r.$(OBJEXT) lib_a-regcomp.$(OBJEXT) \
lib_a-regerror.$(OBJEXT) lib_a-regexec.$(OBJEXT) \
lib_a-regfree.$(OBJEXT) lib_a-rewinddir.$(OBJEXT) \
lib_a-sleep.$(OBJEXT) lib_a-usleep.$(OBJEXT) \
lib_a-telldir.$(OBJEXT)
lib_a-dirfd.$(OBJEXT) lib_a-fnmatch.$(OBJEXT) \
lib_a-glob.$(OBJEXT) lib_a-_isatty.$(OBJEXT) \
lib_a-isatty.$(OBJEXT) lib_a-opendir.$(OBJEXT) \
lib_a-readdir.$(OBJEXT) lib_a-readdir_r.$(OBJEXT) \
lib_a-regcomp.$(OBJEXT) lib_a-regerror.$(OBJEXT) \
lib_a-regexec.$(OBJEXT) lib_a-regfree.$(OBJEXT) \
lib_a-rewinddir.$(OBJEXT) lib_a-sleep.$(OBJEXT) \
lib_a-usleep.$(OBJEXT) lib_a-telldir.$(OBJEXT)
am__objects_2 = lib_a-scandir.$(OBJEXT) lib_a-seekdir.$(OBJEXT)
am__objects_3 = lib_a-execl.$(OBJEXT) lib_a-execle.$(OBJEXT) \
lib_a-execlp.$(OBJEXT) lib_a-execv.$(OBJEXT) \
@@ -100,8 +100,8 @@ am__objects_4 = lib_a-popen.$(OBJEXT) lib_a-posix_spawn.$(OBJEXT)
lib_a_OBJECTS = $(am_lib_a_OBJECTS)
LTLIBRARIES = $(noinst_LTLIBRARIES)
libposix_la_LIBADD =
am__objects_6 = closedir.lo collate.lo collcmp.lo creat.lo fnmatch.lo \
glob.lo _isatty.lo isatty.lo opendir.lo readdir.lo \
am__objects_6 = closedir.lo collate.lo collcmp.lo creat.lo dirfd.lo \
fnmatch.lo glob.lo _isatty.lo isatty.lo opendir.lo readdir.lo \
readdir_r.lo regcomp.lo regerror.lo regexec.lo regfree.lo \
rewinddir.lo sleep.lo usleep.lo telldir.lo
am__objects_7 = scandir.lo seekdir.lo
@@ -290,7 +290,7 @@ top_srcdir = @top_srcdir@
AUTOMAKE_OPTIONS = cygnus
INCLUDES = $(NEWLIB_CFLAGS) $(CROSS_CFLAGS) $(TARGET_CFLAGS)
GENERAL_SOURCES = \
closedir.c collate.c collcmp.c creat.c \
closedir.c collate.c collcmp.c creat.c dirfd.c \
fnmatch.c glob.c _isatty.c isatty.c \
opendir.c readdir.c readdir_r.c \
regcomp.c regerror.c regexec.c regfree.c \
@@ -428,6 +428,12 @@ lib_a-creat.o: creat.c
lib_a-creat.obj: creat.c
$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-creat.obj `if test -f 'creat.c'; then $(CYGPATH_W) 'creat.c'; else $(CYGPATH_W) '$(srcdir)/creat.c'; fi`
lib_a-dirfd.o: dirfd.c
$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-dirfd.o `test -f 'dirfd.c' || echo '$(srcdir)/'`dirfd.c
lib_a-dirfd.obj: dirfd.c
$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-dirfd.obj `if test -f 'dirfd.c'; then $(CYGPATH_W) 'dirfd.c'; else $(CYGPATH_W) '$(srcdir)/dirfd.c'; fi`
lib_a-fnmatch.o: fnmatch.c
$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-fnmatch.o `test -f 'fnmatch.c' || echo '$(srcdir)/'`fnmatch.c

38
newlib/libc/posix/dirfd.c Normal file
View File

@@ -0,0 +1,38 @@
#ifndef HAVE_OPENDIR
/*-
* Copyright (c) 2018 embedded brains GmbH
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <dirent.h>
int
dirfd(DIR *dirp)
{
return (__dirfd(dirp));
}
#endif /* ! HAVE_OPENDIR */