Updated by peter following KSE and Giant pushdown.
I've running with this patch for two week with no ill side effects.
PR: kern/12014: Fix SysV Semaphore handling
Submitted by: Peter Jeremy <peter.jeremy@alcatel.com.au>
number of characters that are searched. This is especially useful
with file operations and non-NUL terminated strings.
Silence from: -audit, -hackers
MFC after: 5 days
1) Allow the sending of more than one control message at a time
over a unix domain socket. This should cover the PR 29499.
2) This requires that unp_{ex,in}ternalize and unp_scan understand
mbufs with more than one control message at a time.
3) Internalize and externalize used to work on the mbuf in-place.
This made life quite complicated and the code for sizeof(int) <
sizeof(file *) could end up doing the wrong thing. The patch always
create a new mbuf/cluster now. This resulted in the change of the
prototype for the domain externalise function.
4) You can now send SCM_TIMESTAMP messages.
5) Always use CMSG_DATA(cm) to determine the start where the data
in unp_{ex,in}ternalize. It was using ((struct cmsghdr *)cm + 1)
in some places, which gives the wrong alignment on the alpha.
(NetBSD made this fix some time ago).
This results in an ABI change for discriptor passing and creds
passing on the alpha. (Probably on the IA64 and Spare ports too).
6) Fix userland programs to use CMSG_* macros too.
7) Be more careful about freeing mbufs containing (file *)s.
This is made possible by the prototype change of externalise.
PR: 29499
MFC after: 6 weeks
is interrupted by saving the pid.
The old code would assign the return value to pid which would trash
it, to fix the problem save a copy of the pid to be used as the
paramter to wait4().
Submitted by: Toshihiko ARAI <toshi@jp.FreeBSD.org>
The corresponding bugs in <wchar.h> have no effect because the function
prototypes there don't have args so the __restrict "keyword" is
misinterpreted as an arg.
Note our implementation is not thread nor async-cancel safe.
Explicitely note atof() does not check nor report errors.
Note that strtod() should be used instead.
Also add C99 conformity status plus clarification that C99 leaves the
flushing of unwritten data, closure of open streams, and removal of
temporary files to the implementation.
of repeating unsuccessful lseek call on each write (original stdio bug).
2) Save errno accross _sseek call in _swrite to not touch it in case write
success (original stdio bug).
3) Add _sseek error checking back, but only for __SOPT mode now.
This is a first cut, but enough to help people interested in using it
further than before.
More text coming to illustrate use and provide more details.
Based on standards' text.
with non-seekable streams. Now here is what here was originally, but it is
ugly, producing unneded seek syscall on each non-seekable stream write. I'll
think about proper solution later.
manpage by taking its text from NetBSD and editing it further.
This also improves the page's mdoc(7) markup style.
Reviewed by: ru
Obtained from: NetBSD
my last version of this work due to HDD crash, but this version cleanly
passed all POSIX and SuSv2 tests. I am working on testing scripts which
should test this implementation against all locales and surely more fixes
will come soon.
Reviewed by: ache, silence at -audit & -developers
o Removed whitespace at EOL
o Removed hard sentence breaks
o Added cap_size() to the NAME section
o Normalized .Nd descriptions
o Fixed the abuses of .Nm and .Va
o Fixed some DESCRIPTION texts
o Fixed the RETURN VALUES and ERRORS texts to look more traditional
Reviewed by: tmm
'locale not used' statement from comments and BUGS section of manpage.
strtol(): fix non-portable 'cutoff' calculation using the same method as
in strtoll().
Cleanup 'cutoff' calculation, remove unneded casts. Misc. cleanup to
make all functions looks the same.
Implement EINVAL reaction per POSIX, document it in manpage, corresponding
POSIX example quotes here:
------------------------------------------------
If the subject sequence is empty or does not have the expected form, no
conversion is performed; the value of str is stored in the object pointed
to by endptr, provided that endptr is not a null pointer.
If no conversion could be performed, 0 shall be returned and errno may be
set to [EINVAL].
[EINVAL] The value of base is not supported.
Since 0, {LONG_MIN} or {LLONG_MIN}, and {LONG_MAX} or {LLONG_MAX} are
returned on error and are also valid returns on success, an application
wishing to check for error situations should set errno to 0, then call
strtol( ) or strtoll ( ), then check errno.
-----------------------------------------------------
are not used'. This is incorrect, as addr must be passed (caddr_t)1
to do anything useful. The source for gdb and a short test program
will confirm that this man page was in error.
PR: docs/27758
Submitted by: Jiangyi Liu <jyliu@163.net>
sys/capability.h--this compiled fine on i386 where (int) and (ssize_t)
are the same, but broke on Alpha where they differ.
Submitted by: Mike Barcroft <mike@FreeBSD.org>
Obtained from: TrustedBSD Project
plain regular files, i.e. files with __SOPT flag set. Fix it, so ftell(stdout)
always returns the same as lseek(1, 0, 1) now.
NOTE: this bug was in original stdio code
__swrite() and __sseek() to higher level. According to funopen(3) they all
are just wrappers to something like standard read(2), write(2) and
lseek(2), i.e. must not touch stdio internals because they are replaceable
with any other functions knows nothing about stdio internals. See example
of funopen(3) usage in sendmail sources f.e.
NOTE: this is original stdio bug, not result of my range checkin added.
internal functions there may fail and set (i.e. overwrite) errno in normal
(not error) situation). In original variant errno testing after call
(as POSIX suggest) is wrong when errno overwrite happens.
0, return that we can't specify it, i.e. error with ESPIPE.
(hint from: "Peter S. Housel" <housel@acm.org>)
Back out sinit() addition, not needed after various code simplifications.
support functions:
cap_subset_np() - Is cap1 a subset of cap2
cap_equal_np() - Is cap1 equal to cap2
o Introduce implementations of POSIX.1e capability support functions:
cap_copy_ext() - Externalize capability
cap_copy_int() - Internalize capability
cap_size() - Determine size required for cap_copy_ext()
Submitted by: tmm
Obtained from: TrustedBSD Project
When file offset tends to be negative due to internal and ungetc buffers
additions counted, try to discard some ungetc data first, then return EBADF.
Later one can happens if lseek(fileno(fd),...) called f.e. POSIX says that
ungetc beyond beginning of the file results are undefined, so we can just
discard some of ungetc data in that case.
Don't rely on gcc cast when checking for overflow, use OFF_MAX.
Cosmetique.
o Unify <machine/endian.h>'s across all architectures.
o Make bswapXX() functions use a different spelling of u_int16_t and
friends to reduce namespace pollution. The bswapXX() functions
don't actually exist, but we'll probably import these at some
point. Atleast one driver (if_de) depends on bswapXX() for big
endian cases.
o Deprecate byteorder(3) prototypes from <sys/types.h>, these are
now prototyped indirectly in <arpa/inet.h>.
o Deprecate in_addr_t and in_port_t typedefs in <sys/types.h>, these
are now typedef'd in <arpa/inet.h>.
o Change byteorder(3) prototypes to use standards compliant uint32_t
(spelled __uint32_t to reduce namespace pollution).
o Document new preferred headers and standards compliance.
Discussed with: bde
PR: 29946
Reviewed by: bmilekic
documented by POSIX.1e, and understand the opaque capability structures.
Introduce support in the userland POSIX.1e library for a
_CAPABILITY_NEEDMACROS define to remove these macros from the normal
namespace, but allow the libc functions to use them.
Submitted by: tmm
Obtained from: TrustedBSD Project
referal from mmap to minherit for MAP_INHERIT. Fully document the
minherit.2 manual page (because frankly, my dear, however you think it
currently works is almost certainly wrong!). I may soon re-implement
MAP_COPY because I believe we can support it properly now, but I will have
to call it something else and that is for a later time.
socket option for the Unix domain. It's weaker than the
socket option (this only returns the uid and gid, while the
socket opt. can return the entire group list), and is
implemented mostly for compatibility with OpenBSD.
Resulting fseek() offset must fit in long, required by POSIX (pointed by bde),
so add LONG_MAX and final tests for it.
rewind.c:
1) add missing __sinit() as in fseek() it pretends to be.
2) use clearerr_unlocked() since we already lock stream before _fseeko()
3) don't zero errno at the end, it explicitely required by POSIX as the
only one method to test rewind() error condition.
4) don't clearerr() if error happens in _fseeko()
"[EINVAL] ... The resulting file-position indicator would be set to a
negative value."
Moreover, in real life negative seek in stdio cause EOF indicator cleared
and not set again forever even if EOF returned.
2) Catch few possible off_t overflows.
Reviewed by: arch discussion
It was foiled because of dynamic copy relocations that caused compile-time
space to be reserved in .bss and at run time a blob of data was copied to
that space and everything used the .bss version.. The problem is that
the space is reserved at compile time, not runtime... So we *still* could
not change the size of FILE. Sigh. :-(
Replace it with something that does actually work and really does let us
make 'FILE' extendable. It also happens to be the same as Linux does in
glibc, but has the slight cost of a pointer. Note that this is the
same cost that 'fp = fopen(), fprintf(fp, ...); fclose(fp);' has.
Fortunately, actual references to stdin/out/err are not all that common
since we have implicit stdin/out/err-using versions of functions
(printf() vs. fprintf()).
is stored in _res_ext.sort_list, and sortlist for IPv4 is stored in
_res.sort_list for backward compatibility. However, both sort_list's
are maintaind by just one index _res.nsort. So, when IPv6 address is
specified to sortlist, empty entry was created in _res.sort_list. It
broke sortlist facility of gethostbyname().
Discussed on users@jp.ipv6.org.
Backout previous revision. We should not expand plain text xrefs if
they appear in the literal text, e.g. in the error or warning message
of the library function. (Submitted by: bde)
Moved "out of memory" from warning to errors section.
o Replace strncpy examples with less confusing ones from
OpenBSD. These examples give more detail and also suggest
using strlcpy(3).
Reviewed by: des, ru, sheldonh
Obtained from: OpenBSD
MFC after: 3 days
Avoid using parenthesis enclosure macros (.Pq and .Po/.Pc) with plain text.
Not only this slows down the mdoc(7) processing significantly, but it also
has an undesired (in this case) effect of disabling hyphenation within the
entire enclosed block.
to strdup() the address string before returning it via *targaddr
because the caller will free the string.
Change the comment at the top of getclnthandle() to clarify that
the caller is responsible for freeing *targaddr.
Noticed by: sobomax
with NetBSD and OpenBSD. glob(3) will now return GLOB_NOSPACE with
errno set to 0 instead of GLOB_LIMIT when we match more than `gl_matchc'
patterns. GLOB_MAXPATH has been left as an alias of GLOB_LIMIT to
maintain backwards compatibility.
Reviewed by: sheldonh, assar
Obtained from: NetBSD/OpenBSD
already found in the sigaction(2) manual.
As discussed with the committer of that delta, cross-reference the list
in sigaction(2) instead of duplicating the list of functions that are
safe for use within signal handlers.
Clarify that if strlcat() does not find a NUL within siz byte it
will not NUL terminate either.
Document boundary condition when size < strlen(dst).
"of", not "on" (from Henric Jungheim)
Obtained from: OpenBSD
MFC After: 1 week
Previously, some useful xrefs were missing.
Now each of the pages refers to all remaining section 2 pages,
to the kld(4) page, and to a related utility's (section 8) page.
