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
