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Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
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Introduce <machine/_endian.h> to let target based customization of
<machine/endian.h> via
* _LITTLE_ENDIAN,
* _BIG_ENDIAN,
* _PDP_ENDIAN, and
* _BYTE_ORDER.
defines. Add definitions expected by FreeBSD to
<machine/endian.h> like
* _QUAD_HIGHWORD,
* _QUAD_LOWWORD,
* __bswap16(),
* __bswap32(),
* __bswap64(),
* __htonl(),
* __htons(),
* __ntohl(), and
* __ntohs().
Also, if __BSD_VISIBLE
* LITTLE_ENDIAN,
* BIG_ENDIAN,
* PDP_ENDIAN, and
* BYTE_ORDER.
Targets that define __machine_host_to_from_network_defined in
<machine/_endian.h> must provide their own implementation of
* __htonl(),
* __htons(),
* __ntohl(), and
* __ntohs(),
otherwise a default implementation is provided by <machine/endian.h>.
In case of GCC defines to builtins are used.
Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
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We can't handle the S_ISGID bit if the child didn't inherit a NULL SID
ACE with the S_ISGID bit set. On directories without default ACL
entries we would have to add an inheritable NULL SID ACE and nothing else.
This in turn results in permission problems when calling set_file_sd
from set_created_file_access. That's fixable, but it would only work
for files created from Cygwin while files created from native Windows
tools end up with really ugly permissions.
This patch only makes sure that the S_ISGID bit is reset for a directory
if it has no inheritable ACEs. Still having the 's' bit shown in ls or
getfacl output would be misleading. So, calling `setfacl -k' on a dir
also removes the S_ISGID bit now.
* sec_acl.cc (set_posix_access): Drop S_ISGID bit on directories
without inheritable ACEs. Explain why.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
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So far we tweaked ACL_GROUP_OBJ and ACL_MASK values the same way when
creating a file. We now do what POSIX requires, namely just change
ACL_MASK if it's present, otherwise ACL_GROUP_OBJ. Note that we only
do this at creation time. Chmod still tweaks both to create less
surprising results for the unsuspecting user.
Additionally make sure to take umask only into account if no ACL_MASK
value is present. That has been missed so far.
* sec_acl.cc (set_posix_access): Perform check for non-existant
default ACEs earlier. Ignore umask also if ACL_MASK is present.
Only set owner_eq_group if we're actually handling a user entry.
Mention chmod in a comment.
* security.cc (set_created_file_access): Perform group/mask
permission setting as required by POSIX 1003.1e.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
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Commit e2ea143 forgot to take special POSIX bits into account.
* sec_acl.cc (set_posix_access): Make sure to create NULL SID
ACE if any special POSIX permission bits are set.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
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Fix definition of __size_t in case __SIZE_TYPE__ is not defined.
Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
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Commit f75114fc was supposed to drop NULL SIDs in case the permissions
are simple enough not to require mask values or special POSIX bits
(S_ISVTX, etc). The check was incorrect. This patch is supposed to
fix the problem.
* sec_acl.cc (set_posix_access): Fix condition under which we
write a NULL SID.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
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The dummy crt0.c provided by the RTEMS target provides stubs of
symbols which would normally be provided by RTEMS. This patch adds
stubs for posix_memalign() as well as the synchronization methods
prototyped in <sys/lock.h>.
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Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
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Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
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Various FreeBSD source and header files need a typedef __size_t via
<sys/_types.h>. Unfortunately the GCC provided <stddef.h> uses
#if (defined (__FreeBSD__) && (__FreeBSD__ >= 5)) \
|| defined(__DragonFly__) \
|| defined(__FreeBSD_kernel__)
/* __size_t is a typedef on FreeBSD 5, must not trash it. */
#elif defined (__VMS__)
/* __size_t is also a typedef on VMS. */
#else
#define __size_t
#endif
and therefore defines __size_t on Newlib targets which would trash a
__size_t typedef. Include <stddef.h> before <sys/_types.h> in
<sys/types.h> and undefine __size_t in <sys/_types.h> as a workaround.
Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
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Include <machine/endian.h> in <sys/types.h> if __BSD_VISIBLE for BSD
compatibility. This is in line with glibc <sys/types.h>.
Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
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Add __va_list to <sys/_types.h> for BSD compatibility. In FreeBSD this
typedef is provided by the various architecture-specific
<machine/_types.h> in a copy and paste manner.
Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
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Signed-off-by: Christian Mauderer <christian.mauderer@embedded-brains.de>
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Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
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Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
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Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
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Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
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Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
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Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
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Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
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Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
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Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
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Use __uint32_t to avoid the use of GCC-specific _ST_INT32.
Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
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Introduce internal type __ino_t.
Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
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Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
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Newlib defines defaults for internal types via <sys/_types.h> and uses
<machine/_types.h> to let targets define their own type if necessary.
Previously for example
#ifndef __dev_t_defined
typedef short __dev_t;
#endif
However, the __*_t_defined pattern conflicts with the glibc type guard
pattern for user types, e.g. dev_t in this example. Introduce a
__machine_*_t_defined pattern for internal types (defined by
<machine/_types.h>, used by <sys/_types.h>). For example
#ifndef __machine_dev_t_defined
typedef short __dev_t;
#endif
Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
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strings.h is the header mandated for these functions in POSIX.1 prior to
2008 (when most of these were removed). The declarations in string.h are
only for BSD compatibility. But when both headers are included, avoid
duplicate declarations.
Also, mark stpcpy and stpncpy as POSIX.1-2008.
Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
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Remove off_t typedef from cygwin/types.h thus relying on sys/types.h.
Introduce winsup/cygwin/machine/_types.h and move some types shared
with newlib into it. Get rid of their definition in cygwin/types.h.
Add same handling for __key_t/key_t as for the other types.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
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Copy definitions of off_t, dev_t, uid_t, and gid_t verbatim from latest
FreeBSD <sys/types.h>.
Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
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This change solves a glibc/BSD compatibility problem.
glibc and BSD use double underscore types for internal types. The Linux
port of Newlib uses some glibc provided internal type definitions which
are not protected by guard defines, e.g. __off_t. To avoid a conflict
Newlib uses single underscore types for some internal types, e.g.
_off_t. However, for BSD compatibility we have to define the internal
types with double underscore names in <sys/_types.h>.
The header file <machine/types.h> is Newlib-specific. It was used
instead of <sys/_types.h> to provide the internal type definitions
_CLOCK_T, _TIME_T_, _CLOCKID_T_, _TIMER_T_, and __suseconds_t. Move
these definitions to <sys/_types.h> (there exist two instances of this
file, one for Linux and one for all other targets). This makes the
_HAVE_SYSTYPES configuration define obsolete (could possibly break the
__RDOS__ target). Use the standard <sys/_types.h> include throughout.
Move __loff_t defintion to default (non-Linux) <sys/_types.h>. Define
it via _off64_t to avoid a dependency on the compiler.
Provide the __off_t definition via default (non-Linux) <sys/_types.h>
based on _off_t for all systems except Cygwin. For Cygwin use _off64_t.
Define off_t via __off_t.
Provide the __pid_t definition via default (non-Linux) <sys/_types.h>.
This prevents a potential __pid_t and pid_t incompatibility. Add BSD
guard defines for pid_t.
Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
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Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
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Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
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Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
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Cygwin's strxfrm/wcsfrm treated a too short output buffer as an error
condition and always returned the size value provided as third parameter.
This is not as it's documented in POSIX.1-2008. Rather, the only error
condition is an invalid input string(*).
Other than that, the functions are supposed to return the length of the
resulting sort key, even if the output buffer is too small. In the latter
case the content of the output array is unspecified, but it's the job
of the application to check that the return value is greater or equal to
the provided buffer size.
(*) We have to make an exception in Cygwin: strxfrm has to call the
UNICODE function LCMapStringW for reasons outlined in a source comment.
If the incoming multibyte string is so large that we fail to malloc
the space required to convert it to a wchar_t string, we have to
ser errno as well since we have nothing to call LCMapStringW with.
* nlsfuncs.cc (wcsxfrm): Fix expression computing offset of
trailing wchar_t NUL. Compute correct return value even if
output buffer is too small.
(strxfrm): Handle failing malloc. Compute correct return value
even if output buffer is too small.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
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Move the kernel dependent parts of <sys/time.h> to new system-specific
header file <machine/_time.h>. Provide an empty default implementation.
Add a specialized implementation for RTEMS.
Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
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Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
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This include is not present in default Newlib, glibc and FreeBSD
<sys/param.h>. With it there is now a conflict with <sys/libkern.h>
introduced by ecf453f9635fb278cff4d4bae21a1e249313b817.
Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
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linker scripts.
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In 7346568 (Make requested console reports work, 2016-03-16), code was
introduced to report the current cursor position. It works by using a
pointer that either points to the next byte in the readahead buffer, or
to a NUL byte if the buffer is depleted, or the pointer is NULL.
These conditions are heeded in the fhandler_console::read() method, but
the condition that the pointer can point at the end of the readahead
buffer was not handled properly in the get_cons_readahead_valid()
method.
This poses a problem e.g. in Git for Windows (which uses a slightly
modified MSYS2 runtime which is in turn a slightly modified Cygwin
runtime) when vim queries the cursor position and immediately goes on to
read console input, erroneously thinking that the readahead buffer is
valid when it is already depleted instead. This condition results in an
apparent freeze that can be helped only by pressing keys repeatedly.
The full Git for Windows bug report is here:
https://github.com/git-for-windows/git/issues/711
Let's just teach the get_cons_readahead_valid() method to handle a
depleted readahead buffer correctly.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
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Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
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Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
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This reverts commit 0008bdea02b690ab19ffe997499cb9a96ee5a66d.
This patch introduced a regression. Calling FOO=$(...) in zsh hangs
indefinitely and has to be killed forcefully.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
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Now that we have properly functioning feature test macros, the BSD
floating-point classification functions can go into math.h instead of
the non-standard ieeefp.h, and not under the C99 guard:
http://man7.org/linux/man-pages/man3/finite.3.html
The isnan function was in earlier versions of SUS but removed starting with
POSIX.1-2001, compare:
http://pubs.opengroup.org/onlinepubs/007908799/xsh/math.h.html
http://pubs.opengroup.org/onlinepubs/009695399/basedefs/math.h.html
Note that the isinf and isnan functions (but not the variants) conflict
with functions by the same name in C++11, hence they (and only they)
need to be hidden:
https://sourceware.org/git/?p=glibc.git;a=commit;h=d9b965fa56350d6eea9f7f438a0714c7ffbb183f
https://sourceware.org/git/?p=glibc.git;a=commit;h=3c47c83a9730c20e602694505b9278c25637b0d0
Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
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The available specifications obviously differ on 32-bit and 64-bit, as
already handled in <sys/features.h>.
Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
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POSIX spawn and thread barriers have since been added. Also fix a typo in
_POSIX2_C_DEV (result is the same).
Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
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glibc returns -1 for negative infinity:
http://man7.org/linux/man-pages/man3/isinfl.3.html
https://sourceware.org/bugzilla/show_bug.cgi?id=15367
Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
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As a Cygwin-specific header, there is no need to guard functions based on
capability macros. Instead, guard several blocks based on additions or
removals in later versions of POSIX.1, along with a few which are only
XSI or GNU extensions.
Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
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TSVTX was marked XSI beginning with SUSv3, compare:
http://pubs.opengroup.org/onlinepubs/007908799/xsh/tar.h.html
http://pubs.opengroup.org/onlinepubs/009695399/basedefs/tar.h.html
http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/tar.h.html
Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
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