jemalloc, stdio: skip lint warning 207

It has been disabled a few minutes ago and will be removed in a few
minutes.

PR lib/58850: add man page link for snprintf_ss

branches: 1.49.2;
Catch up with all the lint warnings since exit on warning was disabled.
Disable 'missing header declaration' and 'nested extern' warnings for now.

PR/57250: Martin Husemann: dtoa mishandles infinite doubles on 32bit big
endian machines. When long double support was added, the old code was kept
for the regular double code. This code was never used because WIDE_DOUBLE
was always defined in the Makefile. Remove that old code, and conditionalize
the WIDE_DOUBLE code based on if long doubles are different than doubles on
the specific platform.

branches: 1.47.18; 1.47.26;
Add printf/scanf man pages from FreeBSD

PR/49279: Justin Cormack: add open_memstream

more man pages links

add mkostemp, mkostemps, mkstemps from FreeBSD.

branches: 1.43.2;
"soon" is "now". Remove all __indr_reference crap.

Add explicit locale versions for the printf family. Replace asprintf,
snprintf and sprintf with simple wrappers around the corresponding
va_list functions to reduce code duplication.

branches: 1.41.2;
- widen the internal read and write calls to match the syscalls
- add funopen2() which provides access to flush() and the wider calls.
- make use of the new flush call in fmemopen()

branches: 1.40.6;
document vsnprintf_ss

add man page as promised.

add fmemopen(3) derrived from POSIX:2008.
libc minor bump.

add dprintf and vdprintf

Add implementations for getdelim(3) and getline(3).

enable wide doubles.

branches: 1.34.2;
Add signal-safe versions of snprintf and vsnprintf

- s/notyet/WIDE_DOUBLE/
- Add a little more glue for WIDE_DOUBLE; not done yet.
- s/def FLOATING_POINT/ndef NO_FLOATING_POINT/ to reduce diffs with FreeBSD.
- fix memory leak where each double formatted leaked 24 by calling __freedtoa()
appropriately. the new gdtoa keeps a list of memory chunks allocated by
malloc(), and it must maintained properly by calling __freedtoa() on the
results of __dtoa() Hi Klaus!
- in vfwprintf() make cvt return char * and convert it using __mbsconv(),
instead of having it return wchar_t *.

This should fix the memory leaks people have been reporting (eg. in top etc.)

PR/30845: Luke Mewburn: strerror_r(3) missing
- Merge 4.4BSD strerror.3 man page changes that summarize information
for all the error printing functions. This makes the perror(3) page
obsolete.
- Implement all error functions in terms of strerror_r(), including
__strerror() which is not used internally. Can it be removed?
- Bump version for strerror_r

vfwprintf.c and vfwscanf.c now compile with -Wuninitialized

Compile the following files with -Wno-uninitialized:
vfprintf.c See rev 1.46 for why we can't fix this.
vfwprintf.c Needs some effort
vfwscanf.c Needs some effort

Add the missing wide char support functions from freebsd.
XXX: long double support is missing until we get gdtoa, and add the
necessary wide functions.

remove the fgetstr manpage

We now need an internal name for fileno(), since when buildling libc
_REENTRANT we can no longer use the macro version from <stdio.h>.

Add a generalized version of fgetln that can stop at an arbitrary delimiter,
and implement fgetln on top of that.

branches: 1.25.2;
add fgetws() and fputws() (lib/20576).

Note: fgetws.c, fgetws.3, fputws.c and fputws.3 are obtained from FreeBSD,
and fitted by sigsegv@infoseek.jp and me.

Add a manual page for flockfile(3) etc.; while here, also add *_unlocked()
to stdio(3) overview documentation. Fixes PR lib/20096 from Jason Thorpe.

Merge the nathanw_sa branch.

- Migrate fparseln(3) from libutil to libc, where it should have been in
the first place...
- Bump libutil major (to 7.0) and libc minor (to 12.91).

- make FILE structure extensible without breaking binary-compatibility.
- add fputwc, fgetwc, fwide and related functions.
- add hooks needed to maintain the orientation of file stream.

Document getc_unlocked(3), getchar_unlocked(3), putc_unlocked(3) and
putchar_unlocked(3); fixes PR lib/11340.

branches: 1.19.2;
XCU5: Add fseeko() and ftello() functions which provide the functionality of
fseek() and ftell(), respectively, but operate on file offsets of type off_t.

make sure asprintf and vasprintf get MLINKS to printf.3

add asprintf and vasprintf, originally written by Todd Miller for OpenBSD

Document mkdtemp(3).

Actually, FreeBSD calls this mkdtemp(). No point in creating a new name.

Add a mktempdir(), like mkstemp(), but it creates a directory.

If AUDIT, do not compile certain functions.

- use CPPFLAGS instead of CFLAGS
- use ${COMPILE.C} ... instead of ${CC} ${CFLAGS} -c ...

branches: 1.11.2;
RCSid police

mktemp.c belongs here, not gen/Makefile.inc

revert

specify man pages the new way.

Move FLOATING_POINT definition into Makefile.inc.

rename fgetline() and sharpen axe for bostic...

don't compiler strerror.c source here, and clean up.

Moved strerror.[c3] from libc/stdio to libc/string.
Since perror is not permitted to change strerror()'s static buffer, I have
changed both functions to pass their own buffers to the new library-internal
function _strerror() that actually does the error message string look up.
Split strerror manpage into strerror and perror manpages.

Add RCS identifiers.

branches: 1.1.1;
Initial revision

"soon" is "now". Remove all __indr_reference crap.

branches: 1.5.6; 1.5.12;
Remove 3rd and 4th clauses in christos' license. OK christos.

compat core reorg.

- Fix the remaining indr_references so that they define lint symbols.
- Add an internal symbol for strerror_r (thanks klaus for noticing)
- Remove internal __strerror

Add missing __RCSID()

branches: 1.1.2;
We now need an internal name for fileno(), since when buildling libc
_REENTRANT we can no longer use the macro version from <stdio.h>.

"soon" is "now". Remove all __indr_reference crap.

branches: 1.5.6; 1.5.12;
Remove 3rd and 4th clauses in christos' license. OK christos.

compat core reorg.

- Fix the remaining indr_references so that they define lint symbols.
- Add an internal symbol for strerror_r (thanks klaus for noticing)
- Remove internal __strerror

Add missing __RCSID()

XCU5: Add fseeko() and ftello() functions which provide the functionality of
fseek() and ftell(), respectively, but operate on file offsets of type off_t.

"soon" is "now". Remove all __indr_reference crap.

branches: 1.5.6; 1.5.12;
Remove 3rd and 4th clauses in christos' license. OK christos.

compat core reorg.

- Fix the remaining indr_references so that they define lint symbols.
- Add an internal symbol for strerror_r (thanks klaus for noticing)
- Remove internal __strerror

Add missing __RCSID()

XCU5: Add fseeko() and ftello() functions which provide the functionality of
fseek() and ftell(), respectively, but operate on file offsets of type off_t.

Add explicit locale versions for the printf family. Replace asprintf,
snprintf and sprintf with simple wrappers around the corresponding
va_list functions to reduce code duplication.

branches: 1.19.2;
- ansify, knf.
- no functional changes

branches: 1.18.6;
revert some of dsl's changes to make things build on i386; he can undo what
he wants when he comes back.

Lint is differentially far too picky...
Remove some warnings that only appear on i386 (not on amd64) and that
for some reason best known to others are deemed fatal for i386.
Making this code 'pass lint' does absolutely nothing for its readability (etc).

Remove a load of pointless casts - one that even lint doesn't bleat about.

* Consider all negative return values as error, not just -1.
* Corrected cast because (size_t) (INT_MAX + 1) is bogus.

A little libc namespace housekeeping exercise:
* Make vfprintf_unlocked() an internal function, c.f. __svfscanf_unlocked().
* Add internal names for arc4random(), endnetpath(), fhstatvfs(),
fstatvfs(), mkstemp(), shquote(), statvfs(), taddr2uaddr(), uaddr2taddr(),
uuid_create_nil(), uuid_is_nil(), and wcwidth().
* Include namespace.h where supposed to.

add a cast and remove another.

Merge the nathanw_sa branch.

__STDC__ is always defined on NetBSD.

- make FILE structure extensible without breaking binary-compatibility.
- add fputwc, fgetwc, fwide and related functions.
- add hooks needed to maintain the orientation of file stream.

va_{start,end} audit:
Make sure that each va_start has one and only one matching va_end,
especially in error cases.
If the va_list is used multiple times, do multiple va_starts/va_ends.
If a function gets va_list as argument, don't let it use va_end (since
it's the callers responsibility).

Improved by comments from enami and christos -- thanks!

Heimdal/krb4/KAME changes already fed back, rest to follow.

Inspired by, but not not based on, OpenBSD.

Need an internal name for asprintf(3).

branches: 1.7.6;
Initialize f._file for locking primitives.

back out the #ifdef _DIAGNOSTIC argument checks; too many people complained.
_DIAGASSERT() is still retained.

* use _DIAGASSERT() to check pointer arguments against NULL and file
descriptors against -1 (as appropriate).
* add actual checks which to detect stuff that would trigger_DIAGASSERT(),
and attempt to return a sane error condition.
* knf some code
* remove some `register' decls.

the first two items result in the addition of code similar to the
following in various functions:

_DIAGASSERT(path != NULL)
#ifdef _DIAGNOSTIC
if (path == NULL) {
errno = EFAULT;
return (-1);
}
#endif

delint

Make sure we free the buffer in all error cases.
Do the final realloc(3) to the size of the string, not the size of the buffer
allocated for the string (which is a noop).

s/NULL/NUL/ where appropriate.

add asprintf and vasprintf, originally written by Todd Miller for OpenBSD

- ansify, knf.
- no functional changes

branches: 1.10.56;
Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22280, verified by myself.

#include "local.h" to get __flockfile_internal() prototype.

back out the #ifdef _DIAGNOSTIC argument checks; too many people complained.
_DIAGASSERT() is still retained.

* use _DIAGASSERT() to check pointer arguments against NULL and file
descriptors against -1 (as appropriate).
* add actual checks which to detect stuff that would trigger_DIAGASSERT(),
and attempt to return a sane error condition.
* knf some code
* remove some `register' decls.

the first two items result in the addition of code similar to the
following in various functions:

_DIAGASSERT(path != NULL)
#ifdef _DIAGNOSTIC
if (path == NULL) {
errno = EFAULT;
return (-1);
}
#endif

Use FLOCKFILE() and FUNLOCKFILE() macros from reentrant.h so that stdio
can be made thread-safe.

Fix RCSID's
Fix gcc warnings.
Add prototypes for functions that were declared in more than one place
to local.h or extern.h and use that instead.

Merged with 4.4lite.
Changed to conform to NetBSD's new RCS Id convention.

Declare rcsid strings so they are stored in text segment.

Add RCS identifiers.

branches: 1.1.1;
Initial revision

Add explicit locale versions for the printf family. Replace asprintf,
snprintf and sprintf with simple wrappers around the corresponding
va_list functions to reduce code duplication.

branches: 1.1.6; 1.1.12;
add dprintf and vdprintf

Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22280, verified by myself.

Use
.In header.h
instead of
.Fd #include \*[Lt]header.h\*[Gt]
Much easier to read and write, and supported by groff for ages.
Okayed by ross.

Merge the nathanw_sa branch.

Generate <>& symbolically.

branches: 1.5.12;
add LIBRARY section to man page

Merged with 4.4lite.
Changed to conform to NetBSD's new RCS Id convention.

Use "Er" for argument to -width in the lists in the ERROR sections so that
formatting is consistant.

Add RCS indentifiers.

branches: 1.1.1;
Initial revision

- ansify, knf.
- no functional changes

branches: 1.17.6;
Use a proper char */size_t pair in __sfileext to keep track of the line
buffer for fgetln and fgetwln. Simplifies code by dropping the INT_MAX
related logic. Drop conditionals around FREELB, free(NULL) is valid.

Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22280, verified by myself.

Merge the nathanw_sa branch.

- make FILE structure extensible without breaking binary-compatibility.
- add fputwc, fgetwc, fwide and related functions.
- add hooks needed to maintain the orientation of file stream.

branches: 1.13.6;
Do the lock *after* checking that the fp is valid.

back out the #ifdef _DIAGNOSTIC argument checks; too many people complained.
_DIAGASSERT() is still retained.

* use _DIAGASSERT() to check pointer arguments against NULL and file
descriptors against -1 (as appropriate).
* add actual checks which to detect stuff that would trigger_DIAGASSERT(),
and attempt to return a sane error condition.
* knf some code
* remove some `register' decls.

the first two items result in the addition of code similar to the
following in various functions:

_DIAGASSERT(path != NULL)
#ifdef _DIAGNOSTIC
if (path == NULL) {
errno = EFAULT;
return (-1);
}
#endif

Backed out previous fclose(NULL) change.

Fix pr lib/6322
fclose(NULL) used to segfault. Now it returns EOF and sets errno to EBADF.

remove obsolete register declarations

Use FLOCKFILE() and FUNLOCKFILE() macros from reentrant.h so that stdio
can be made thread-safe.

Fix RCSID's
Fix gcc warnings.
Add prototypes for functions that were declared in more than one place
to local.h or extern.h and use that instead.

Merged with 4.4lite.
Changed to conform to NetBSD's new RCS Id convention.

Add explicit return types to function definitions.

Declare rcsid strings so they are stored in text segment.

Add RCS identifiers.

branches: 1.1.1;
Initial revision

Add O_REGULAR to enforce opening of only regular files
(like we have O_DIRECTORY for directories).
This is better than open(, O_NONBLOCK), fstat()+S_ISREG() because opening
devices can have side effects.

branches: 1.17.6;
Need <sys/stat.h>

branches: 1.16.14;
- ansify, knf.
- no functional changes

branches: 1.15.6;
Since _file is a short, check that the fd fits in it, otherwise bail with
EMFILE. We treat _file as an unsigned short to double our range, with a
special case for -1 (closed). Make a note of what we should do about stdio
if we ever bump libc. We could change _file in the future compatibly to an
int by putting it in the extension space but for now we don't bother.

branches: 1.14.22; 1.14.28;
Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22280, verified by myself.

Merge the nathanw_sa branch.

branches: 1.12.2;
This is for completeness only (to make fdopen symmetric with fopen and freopen)
and to match the documentation. Return an error if "f" was specified and the
file descriptor does not refer to a plain file.

Delint.
Remove trailing ; from uses of __weak_alias(). The macro inserts this if
needed.

back out the #ifdef _DIAGNOSTIC argument checks; too many people complained.
_DIAGASSERT() is still retained.

* use _DIAGASSERT() to check pointer arguments against NULL and file
descriptors against -1 (as appropriate).
* add actual checks which to detect stuff that would trigger_DIAGASSERT(),
and attempt to return a sane error condition.
* knf some code
* remove some `register' decls.

the first two items result in the addition of code similar to the
following in various functions:

_DIAGASSERT(path != NULL)
#ifdef _DIAGNOSTIC
if (path == NULL) {
errno = EFAULT;
return (-1);
}
#endif

Need an internal name for fdopen().

remove obsolete register declarations

Fix RCSID's
Fix gcc warnings.
Add prototypes for functions that were declared in more than one place
to local.h or extern.h and use that instead.

branches: 1.5.2;
Merged with 4.4lite.
Changed to conform to NetBSD's new RCS Id convention.

Remove useless invocation of the evil getdtablesize(3).

Declare rcsid strings so they are stored in text segment.

Add RCS identifiers.

branches: 1.1.1;
Initial revision

- ansify, knf.
- no functional changes

branches: 1.11.56;
Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22280, verified by myself.

#include "local.h" to get __flockfile_internal() prototype.

back out the #ifdef _DIAGNOSTIC argument checks; too many people complained.
_DIAGASSERT() is still retained.

* use _DIAGASSERT() to check pointer arguments against NULL and file
descriptors against -1 (as appropriate).
* add actual checks which to detect stuff that would trigger_DIAGASSERT(),
and attempt to return a sane error condition.
* knf some code
* remove some `register' decls.

the first two items result in the addition of code similar to the
following in various functions:

_DIAGASSERT(path != NULL)
#ifdef _DIAGNOSTIC
if (path == NULL) {
errno = EFAULT;
return (-1);
}
#endif

Deploy stdio stream locking.

Fix RCSID's
Fix gcc warnings.
Add prototypes for functions that were declared in more than one place
to local.h or extern.h and use that instead.

Merged with 4.4lite.
Changed to conform to NetBSD's new RCS Id convention.

Add explicit return types to function definitions.

Declare rcsid strings so they are stored in text segment.

Add RCS identifiers.

branches: 1.1.1;
Initial revision

Wording.

Note that EBADF is optional for fileno() in POSIX.

Correct the discussion about return values: fileno() may fail and return -1.
Note that in such cases the NetBSD implementation does not set errno to
EBADF, hence diverging from the standard in this small detail.

Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22280, verified by myself.

Use
.In header.h
instead of
.Fd #include \*[Lt]header.h\*[Gt]
Much easier to read and write, and supported by groff for ages.
Okayed by ross.

Merge the nathanw_sa branch.

Generate <>& symbolically.

Boring whitespace fixes.

branches: 1.6.12;
add LIBRARY section to man page

Merged with 4.4lite.
Changed to conform to NetBSD's new RCS Id convention.

Fix spelling errors.

Note that fileno() conforms to 1003.1-90.

Add RCS indentifiers.

branches: 1.1.1;
Initial revision

- ansify, knf.
- no functional changes

branches: 1.11.56;
Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22280, verified by myself.

#include "local.h" to get __flockfile_internal() prototype.

back out the #ifdef _DIAGNOSTIC argument checks; too many people complained.
_DIAGASSERT() is still retained.

* use _DIAGASSERT() to check pointer arguments against NULL and file
descriptors against -1 (as appropriate).
* add actual checks which to detect stuff that would trigger_DIAGASSERT(),
and attempt to return a sane error condition.
* knf some code
* remove some `register' decls.

the first two items result in the addition of code similar to the
following in various functions:

_DIAGASSERT(path != NULL)
#ifdef _DIAGNOSTIC
if (path == NULL) {
errno = EFAULT;
return (-1);
}
#endif

Deploy stdio stream locking.

Fix RCSID's
Fix gcc warnings.
Add prototypes for functions that were declared in more than one place
to local.h or extern.h and use that instead.

Merged with 4.4lite.
Changed to conform to NetBSD's new RCS Id convention.

Add explicit return types to function definitions.

Declare rcsid strings so they are stored in text segment.

Add RCS identifiers.

branches: 1.1.1;
Initial revision

Document history

branches: 1.12.98;
Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22280, verified by myself.

Use
.In header.h
instead of
.Fd #include \*[Lt]header.h\*[Gt]
Much easier to read and write, and supported by groff for ages.
Okayed by ross.

Merge the nathanw_sa branch.

Generate <>& symbolically.

Mainly sort SEE ALSO, but also sort sections, and some punctuation and
paragraph fixes.

branches: 1.7.12;
first pass at fixing up capitalization of function names and
arguments; ensure that each is correct with respect to the
implementation, rather than being correct as per english.

fix mdoc references and other mistakes

add LIBRARY section to man page

Merged with 4.4lite.
Changed to conform to NetBSD's new RCS Id convention.

Use "Er" for argument to -width in the lists in the ERROR sections so that
formatting is consistant.

Add RCS indentifiers.

branches: 1.1.1;
Initial revision

revert changes to fflush.c (1.18) and fvwrite.c (1.25) until we investigate
collateral damage. Breaks h_intr.c test. Requested by RVP.

Don't adjust the buffers when write returns 0. This happens with fmemopen
and other synthetic write functions. This fixes the unit-tests for fmemopen,
but adjusting should be the right behavior for all cases?

Include the 0 return from write. Although the real write system call does
not return 0, the synthetic writes from funopen/fmemopen could. This avoids
infinite loops in >= test19 in fmemopen, but the tests still fail, perhaps
because they assume the previous behavior, where flush does not adjust the
stdio pointers on error.

Obey EINTR and return immediately adjusting for unwritten. From RVP

Handle EINTR, from RVP.

Account for partial writes when interrupted (from FreeBSD).

- widen the internal read and write calls to match the syscalls
- add funopen2() which provides access to flush() and the wider calls.
- make use of the new flush call in fmemopen()

- ansify, knf.
- no functional changes

PR/45989: Martin Husemann: lint invocation does include -w only on i386

- turn lint -w for all the platforms after fixing the lint warnings.
- add _DIAGASSERTS() for casts that would assign values to types that
would not fit.
- change types, add casts
- change into ansii prototypes
- turn on _DIAGNOSTIC for libc (during current, to be eliminated for release
builds)

approved by core@

branches: 1.15.56;
Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22280, verified by myself.

Merge the nathanw_sa branch.

branches: 1.13.10;
back out the #ifdef _DIAGNOSTIC argument checks; too many people complained.
_DIAGASSERT() is still retained.

* use _DIAGASSERT() to check pointer arguments against NULL and file
descriptors against -1 (as appropriate).
* add actual checks which to detect stuff that would trigger_DIAGASSERT(),
and attempt to return a sane error condition.
* knf some code
* remove some `register' decls.

the first two items result in the addition of code similar to the
following in various functions:

_DIAGASSERT(path != NULL)
#ifdef _DIAGNOSTIC
if (path == NULL) {
errno = EFAULT;
return (-1);
}
#endif

remove obsolete register declarations

Use rwlocks as appropriate.

Use FLOCKFILE() and FUNLOCKFILE() macros from reentrant.h so that stdio
can be made thread-safe.

Fix RCSID's
Fix gcc warnings.
Add prototypes for functions that were declared in more than one place
to local.h or extern.h and use that instead.

Merged with 4.4lite.
Changed to conform to NetBSD's new RCS Id convention.

Add explicit return types to function definitions.

Declare rcsid strings so they are stored in text segment.

Nuke remaining patchkit headers.

Add RCS identifiers.

after 0.2.2 "stable" patches applied

branches: 1.1.1;
Initial revision

- ansify, knf.
- no functional changes

branches: 1.11.56;
Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22280, verified by myself.

#include "local.h" to get __flockfile_internal() prototype.

back out the #ifdef _DIAGNOSTIC argument checks; too many people complained.
_DIAGASSERT() is still retained.

* use _DIAGASSERT() to check pointer arguments against NULL and file
descriptors against -1 (as appropriate).
* add actual checks which to detect stuff that would trigger_DIAGASSERT(),
and attempt to return a sane error condition.
* knf some code
* remove some `register' decls.

the first two items result in the addition of code similar to the
following in various functions:

_DIAGASSERT(path != NULL)
#ifdef _DIAGNOSTIC
if (path == NULL) {
errno = EFAULT;
return (-1);
}
#endif

Use FLOCKFILE() and FUNLOCKFILE() macros from reentrant.h so that stdio
can be made thread-safe.

Fix RCSID's
Fix gcc warnings.
Add prototypes for functions that were declared in more than one place
to local.h or extern.h and use that instead.

Merged with 4.4lite.
Changed to conform to NetBSD's new RCS Id convention.

Add explicit return types to function definitions.

Declare rcsid strings so they are stored in text segment.

Add RCS identifiers.

branches: 1.1.1;
Initial revision

Clean up deleted files.

don't squish newline at end of fgetline()... from bostic

Use "Er" for argument to -width in the lists in the ERROR sections so that
formatting is consistant.

Add RCS indentifiers.

branches: 1.1.1;
Initial revision

Clean up deleted files.

Add explicit return types to function definitions.

don't squish newline at end of fgetline()... from bostic

Declare rcsid strings so they are stored in text segment.

Add RCS identifiers.

branches: 1.1.1;
Initial revision

Indent.

branches: 1.15.22; 1.15.24;
Fix incorrect example (what happens when len == 0?)

branches: 1.14.56; 1.14.68;
put back the CAVEATS section
pointed out by wiz

Bump date for previous.

Add a generalized version of fgetln that can stop at an arbitrary delimiter,
and implement fgetln on top of that.

Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22280, verified by myself.

Use
.In header.h
instead of
.Fd #include \*[Lt]header.h\*[Gt]
Much easier to read and write, and supported by groff for ages.
Okayed by ross.

Merge the nathanw_sa branch.

import CAVEATS sections from OpenBSD.
with little tweak by me.

Generate <>& symbolically.

branches: 1.6.2;
Sprinkle some __restrict into stdio.

add LIBRARY section to man page

.Bx'ize

Merged with 4.4lite.
Changed to conform to NetBSD's new RCS Id convention.

Fix spelling errors.

branches: 1.1.1;
rename fgetline() and sharpen axe for bostic...

Don't use "NULL" to talk about null-terminated strings.

The C standard seems to be inconsistent about dash vs. space. Old
text uses dash, Annex K uses space. I'll let wizd(8) to sort that
out.

Reinstate __getdelim which does no locking.
Callers are now required to FLOCKFILE so they can operate on fp as well.

__getdelim works on strings up to SIZE_MAX - 2 and returns 0 on EOF.
getdelim works on strings up to SSIZE_MAX and returns -1 on EOF.
__fgetstr is now just a wrapper around __getdelim and ensures that
the buffer doesn't overflow the one provided by FILE.
__slbexpand is now static in fgetwln as it is the only consumer of that func.

After discussion with christos, turn fgetstr() into an internal function.
Its API in inherently non-threadsafe (and it depends on certain properties
of the underlying stdio implementation), so it shouldn't be a first-class
function for general use, polluting the application namespace.
Also remove the FLOCKFILE() code from it - this is under control of the
calling function now.
(XXX I'm not sure whether the FLOCKFILE() should be kept in fgetln(),
this function cannot be used in multiple threads anyway. It doesn't
hurt much, and it might prevent corruption of internal FILE structures.)

Add a generalized version of fgetln that can stop at an arbitrary delimiter,
and implement fgetln on top of that.

Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22280, verified by myself.

Merge the nathanw_sa branch.

branches: 1.10.6;
Delint.
Remove trailing ; from uses of __weak_alias(). The macro inserts this if
needed.

back out the #ifdef _DIAGNOSTIC argument checks; too many people complained.
_DIAGASSERT() is still retained.

* use _DIAGASSERT() to check pointer arguments against NULL and file
descriptors against -1 (as appropriate).
* add actual checks which to detect stuff that would trigger_DIAGASSERT(),
and attempt to return a sane error condition.
* knf some code
* remove some `register' decls.

the first two items result in the addition of code similar to the
following in various functions:

_DIAGASSERT(path != NULL)
#ifdef _DIAGNOSTIC
if (path == NULL) {
errno = EFAULT;
return (-1);
}
#endif

delint

Need an internal name for fgetln().

remove obsolete register declarations

Use FLOCKFILE() and FUNLOCKFILE() macros from reentrant.h so that stdio
can be made thread-safe.

Fix RCSID's
Fix gcc warnings.
Add prototypes for functions that were declared in more than one place
to local.h or extern.h and use that instead.

branches: 1.2.6;
Merged with 4.4lite.
Changed to conform to NetBSD's new RCS Id convention.

branches: 1.1.1;
rename fgetline() and sharpen axe for bostic...

From tnozaki@: make fpos_t a complex object that keeps track of the parse
state of the stream. Change argument of the seek function to funopen() from
fpos_t to off_t. Make f{g,s}etpos() use the new fpos_t struct, while providing
backwards compatible entry points. Approved by releng@

branches: 1.11.56;
Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22280, verified by myself.

In fgetpos() and fsetpos(), use ftello() and fseeko(), respectively, to avoid
truncating the value stored in the fpos_t object operated on to that of a
long integer; adresses PR lib/6637.

back out the #ifdef _DIAGNOSTIC argument checks; too many people complained.
_DIAGASSERT() is still retained.

* use _DIAGASSERT() to check pointer arguments against NULL and file
descriptors against -1 (as appropriate).
* add actual checks which to detect stuff that would trigger_DIAGASSERT(),
and attempt to return a sane error condition.
* knf some code
* remove some `register' decls.

the first two items result in the addition of code similar to the
following in various functions:

_DIAGASSERT(path != NULL)
#ifdef _DIAGNOSTIC
if (path == NULL) {
errno = EFAULT;
return (-1);
}
#endif

Fix RCSID's
Fix gcc warnings.
Add prototypes for functions that were declared in more than one place
to local.h or extern.h and use that instead.

Merged with 4.4lite.
Changed to conform to NetBSD's new RCS Id convention.

Add explicit return types to function definitions.

Declare rcsid strings so they are stored in text segment.

merge in changes from netbsd-0-9-ALPHA2

Add RCS identifiers.

branches: 1.1.1;
Initial revision

Remove the note about the standard recommending fgets(3);
should be clear enough from the big warning to "NEVER use gets()".

Wording.

They've finally made gets(3) obsolete (in POSIX, at least).

simplify a sentence

"The fgets() and functions gets() do not..." ->
"The fgets() and gets() functions do not..."

Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22280, verified by myself.

Use
.In header.h
instead of
.Fd #include \*[Lt]header.h\*[Gt]
Much easier to read and write, and supported by groff for ages.
Okayed by ross.

Merge the nathanw_sa branch.

Correct wrong comparison in example.

import CAVEATS sections from OpenBSD.
with little tweak by me.

Generate <>& symbolically.

Mainly sort SEE ALSO, but also sort sections, and some punctuation and
paragraph fixes.

branches: 1.10.2;
Sprinkle some __restrict into stdio.

Implement a new manual page category ``SECURITY CONSIDERATIONS''
(suggested by mycroft)

fix mdoc references and other mistakes

add LIBRARY section to man page

fix pr-2664, second param to fgets is int not size_t, from SAITOH Masanobu

Merged with 4.4lite.
Changed to conform to NetBSD's new RCS Id convention.

fgetln, not fgetline

Use "Er" for argument to -width in the lists in the ERROR sections so that
formatting is consistant.

Add RCS indentifiers.

branches: 1.1.1;
Initial revision

- ansify, knf.
- no functional changes

branches: 1.27.6;
revert some of dsl's changes to make things build on i386; he can undo what
he wants when he comes back.

Lint is differentially far too picky...
Remove some warnings that only appear on i386 (not on amd64) and that
for some reason best known to others are deemed fatal for i386.
Making this code 'pass lint' does absolutely nothing for its readability (etc).

Remove a load of pointless casts - one that even lint doesn't bleat about.

Check for EOF before erroring fgets() with length <= 0.
If length is invalid, set errno = EINVAL and __SERR as well returning NULL.
Should let me close PR/41992.

Change a while () {} into a do {} while() so that fgets(buf, 1, file)
detects EOF on an empty file.
Fixes most of PR/41992

sign-compare fix

Make these work with _FORTIFY_SOURCE, by overriding the fortified definitions

remove superfluous assignment

Remove another unneeded cast to size_t.

Pointed out by Anil Madhavapeddy in private email.

No need to cast "len" to a size_t now that "len" is a size_t.

avoid signed->unsigned assignment. openbsd PR 1709

Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22280, verified by myself.

Merge the nathanw_sa branch.

- make FILE structure extensible without breaking binary-compatibility.
- add fputwc, fgetwc, fwide and related functions.
- add hooks needed to maintain the orientation of file stream.

branches: 1.13.6;
missing ;

branches: 1.12.4;
back out the #ifdef _DIAGNOSTIC argument checks; too many people complained.
_DIAGASSERT() is still retained.

* use _DIAGASSERT() to check pointer arguments against NULL and file
descriptors against -1 (as appropriate).
* add actual checks which to detect stuff that would trigger_DIAGASSERT(),
and attempt to return a sane error condition.
* knf some code
* remove some `register' decls.

the first two items result in the addition of code similar to the
following in various functions:

_DIAGASSERT(path != NULL)
#ifdef _DIAGNOSTIC
if (path == NULL) {
errno = EFAULT;
return (-1);
}
#endif

change len from size_t to int so that len = fp->_r does not get promoted
to unsigned. cast len appropriately to size_t later.

Sloppy stdio stream lock tracking.

remove obsolete register declarations

Use FLOCKFILE() and FUNLOCKFILE() macros from reentrant.h so that stdio
can be made thread-safe.

Fix RCSID's
Fix gcc warnings.
Add prototypes for functions that were declared in more than one place
to local.h or extern.h and use that instead.

change second arg of fgets() from size_t to int

branches: 1.4.2;
Merged with 4.4lite.
Changed to conform to NetBSD's new RCS Id convention.

Declare rcsid strings so they are stored in text segment.

Add RCS identifiers.

branches: 1.1.1;
Initial revision

remove the fgetstr manpage

fix reference Nx 2.1 to Nx 3.0

Drop trailing whitespace; null -> nul; & -> \*[Am]

Add a generalized version of fgetln that can stop at an arbitrary delimiter,
and implement fgetln on top of that.

Don't use "NULL" to talk about null-terminated strings.

The C standard seems to be inconsistent about dash vs. space. Old
text uses dash, Annex K uses space. I'll let wizd(8) to sort that
out.

Use a proper char */size_t pair in __sfileext to keep track of the line
buffer for fgetln and fgetwln. Simplifies code by dropping the INT_MAX
related logic. Drop conditionals around FREELB, free(NULL) is valid.

Reinstate __getdelim which does no locking.
Callers are now required to FLOCKFILE so they can operate on fp as well.

Remove __getdelim and just use getdelim.
fgetstr now works with strings up to SSIZE_MAX as a result, but may
reallocate buffers needlessly just like it used to when the buffer size
exceeds INT_MAX.
fgetstr converts errno EOVERFLOW to EINVAL on getdelim error.

Handle errors from getdelim better.

Store the allocated buffer against FILE, plugging a memory leak.
Fixes PR bin/42183.

__getdelim works on strings up to SIZE_MAX - 2 and returns 0 on EOF.
getdelim works on strings up to SSIZE_MAX and returns -1 on EOF.
__fgetstr is now just a wrapper around __getdelim and ensures that
the buffer doesn't overflow the one provided by FILE.
__slbexpand is now static in fgetwln as it is the only consumer of that func.

sign-compare fix

fix spelling of accommodate; from Zapher.

Add the missing wide char support functions from freebsd.
XXX: long double support is missing until we get gdtoa, and add the
necessary wide functions.

After discussion with christos, turn fgetstr() into an internal function.
Its API in inherently non-threadsafe (and it depends on certain properties
of the underlying stdio implementation), so it shouldn't be a first-class
function for general use, polluting the application namespace.
Also remove the FLOCKFILE() code from it - this is under control of the
calling function now.
(XXX I'm not sure whether the FLOCKFILE() should be kept in fgetln(),
this function cannot be used in multiple threads anyway. It doesn't
hurt much, and it might prevent corruption of internal FILE structures.)

Add a generalized version of fgetln that can stop at an arbitrary delimiter,
and implement fgetln on top of that.

- ansify, knf.
- no functional changes

PR/45989: Martin Husemann: lint invocation does include -w only on i386

- turn lint -w for all the platforms after fixing the lint warnings.
- add _DIAGASSERTS() for casts that would assign values to types that
would not fit.
- change types, add casts
- change into ansii prototypes
- turn on _DIAGNOSTIC for libc (during current, to be eliminated for release
builds)

approved by core@

branches: 1.11.6;
revert some of dsl's changes to make things build on i386; he can undo what
he wants when he comes back.

Lint is differentially far too picky...
Remove some warnings that only appear on i386 (not on amd64) and that
for some reason best known to others are deemed fatal for i386.
Making this code 'pass lint' does absolutely nothing for its readability (etc).

Remove a load of pointless casts - one that even lint doesn't bleat about.

oops, fix miss-increment fp->_p.

mbrtowc(3) never return correct multibyte length of L'\0'.

don't use __sgetc() to avoid overwriting fwide(3) orientation
(__srget() call by __sgetc() uses _SET_ORIENTATION macro).

SUSv3 said, if an encoding error occurs, the error indicator
for the stream shall be set.

Add missing __RCSID()

add fgetws() and fputws() (lib/20576).

Note: fgetws.c, fgetws.3, fputws.c and fputws.3 are obtained from FreeBSD,
and fitted by sigsegv@infoseek.jp and me.

Merge the nathanw_sa branch.

branches: 1.1.2;
- make FILE structure extensible without breaking binary-compatibility.
- add fputwc, fgetwc, fwide and related functions.
- add hooks needed to maintain the orientation of file stream.

Observe the following spelling:
- wide character (noun)
- wide-character (adjective)

Inspired by jmc@OpenBSD.

Add the missing wide char support functions from freebsd.
XXX: long double support is missing until we get gdtoa, and add the
necessary wide functions.

Improvements to fgetwln(3) from Andrey Chernov:

1) Set the stdio error indicator on __slbexpand() failure.

2) fgetwc(3) may succeed even when ferror(3) is already set
(for example, consider a program using SIG_IGN on SIGTTIN,
reading from the tty while in the background, getting EIO,
then coming to the foreground and reading again).
So do not force fgetwln(3) to fail in such a case either.
(Yes, the program should probably clearerr(3) before
reading again, but let's be nicer in case it forgets.)

missing _

From OpenBSD:
bugfix: when fgetwc(3) fails, fgetwln(3) must fail as well;

- ansify, knf.
- no functional changes

branches: 1.4.6;
Use a proper char */size_t pair in __sfileext to keep track of the line
buffer for fgetln and fgetwln. Simplifies code by dropping the INT_MAX
related logic. Drop conditionals around FREELB, free(NULL) is valid.

__getdelim works on strings up to SIZE_MAX - 2 and returns 0 on EOF.
getdelim works on strings up to SSIZE_MAX and returns -1 on EOF.
__fgetstr is now just a wrapper around __getdelim and ensures that
the buffer doesn't overflow the one provided by FILE.
__slbexpand is now static in fgetwln as it is the only consumer of that func.

sign-compare fix

Add the missing wide char support functions from freebsd.
XXX: long double support is missing until we get gdtoa, and add the
necessary wide functions.

Observe the following spelling:
- wide character (noun)
- wide-character (adjective)

Inspired by jmc@OpenBSD.

Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22280, verified by myself.

add fgetws() and fputws() (lib/20576).

Note: fgetws.c, fgetws.3, fputws.c and fputws.3 are obtained from FreeBSD,
and fitted by sigsegv@infoseek.jp and me.

- ansify, knf.
- no functional changes

branches: 1.2.44;
SUSv3 said, if an encoding error occurs, the error indicator
for the stream shall be set.

add fgetws() and fputws() (lib/20576).

Note: fgetws.c, fgetws.3, fputws.c and fputws.3 are obtained from FreeBSD,
and fitted by sigsegv@infoseek.jp and me.

lib: remove CONSTCOND comment

Since 2021-01-31, lint doesn't need it anymore for the common pattern of
'do ... while (0)'.

Use a proper char */size_t pair in __sfileext to keep track of the line
buffer for fgetln and fgetwln. Simplifies code by dropping the INT_MAX
related logic. Drop conditionals around FREELB, free(NULL) is valid.

Add fields to struct __sfileext to track how many times the lock has been
taken by internal stdio functions, and what the cancellation state was when
the first such lock was taken.

Revert the conversion to libpthread's recursive mutexes. Too much
trouble is caused by the memory allocation in the mutex initialization,
and uncontested mutexes and condition variables have become faster in the
meantime.

Use recursive mutexes from libpthread rather than implementing
our own with normal mutexes and condition variables.

Merge the nathanw_sa branch.

branches: 1.1.2;
add files forgotten in my previous commit.

- ansify, knf.
- no functional changes

branches: 1.12.50;
We now need an internal name for fileno(), since when buildling libc
_REENTRANT we can no longer use the macro version from <stdio.h>.

branches: 1.11.2;
Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22280, verified by myself.

#include "local.h" to get __flockfile_internal() prototype.

back out the #ifdef _DIAGNOSTIC argument checks; too many people complained.
_DIAGASSERT() is still retained.

* use _DIAGASSERT() to check pointer arguments against NULL and file
descriptors against -1 (as appropriate).
* add actual checks which to detect stuff that would trigger_DIAGASSERT(),
and attempt to return a sane error condition.
* knf some code
* remove some `register' decls.

the first two items result in the addition of code similar to the
following in various functions:

_DIAGASSERT(path != NULL)
#ifdef _DIAGNOSTIC
if (path == NULL) {
errno = EFAULT;
return (-1);
}
#endif

Deploy stdio stream locking.

Fix RCSID's
Fix gcc warnings.
Add prototypes for functions that were declared in more than one place
to local.h or extern.h and use that instead.

Merged with 4.4lite.
Changed to conform to NetBSD's new RCS Id convention.

Add explicit return types to function definitions.

Declare rcsid strings so they are stored in text segment.

Add RCS identifiers.

branches: 1.1.1;
Initial revision

- widen the internal read and write calls to match the syscalls
- add funopen2() which provides access to flush() and the wider calls.
- make use of the new flush call in fmemopen()

- ansify, knf.
- no functional changes

From tnozaki@: make fpos_t a complex object that keeps track of the parse
state of the stream. Change argument of the seek function to funopen() from
fpos_t to off_t. Make f{g,s}etpos() use the new fpos_t struct, while providing
backwards compatible entry points. Approved by releng@

branches: 1.25.6;
add dprintf and vdprintf

Use a proper char */size_t pair in __sfileext to keep track of the line
buffer for fgetln and fgetwln. Simplifies code by dropping the INT_MAX
related logic. Drop conditionals around FREELB, free(NULL) is valid.

Grr, adjust last so that it works with our busted lint(1).

Use explicit initializers in STDEXT

fix gcc -Werror -Wmissing-braces problem
mbstate_t(this is opaque object)'s initializer should be ``{ 0 }'',
so changed 1st field of union from character array to integer.

Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22280, verified by myself.

Add fields to struct __sfileext to track how many times the lock has been
taken by internal stdio functions, and what the cancellation state was when
the first such lock was taken.

Revert the conversion to libpthread's recursive mutexes. Too much
trouble is caused by the memory allocation in the mutex initialization,
and uncontested mutexes and condition variables have become faster in the
meantime.

Use recursive mutexes from libpthread rather than implementing
our own with normal mutexes and condition variables.

Merge the nathanw_sa branch.

fully initialize the structure to avoid gcc complaints.

- make FILE structure extensible without breaking binary-compatibility.
- add fputwc, fgetwc, fwide and related functions.
- add hooks needed to maintain the orientation of file stream.

branches: 1.13.6;
Just call fflush() from _cleanup(), since it does the right locking.

delint

Replace use of getdtablesize() with (the non-deprecated) sysconf(), hence no
need for an internal name for the former any more; suggested by Matthew Green.

Need "namespace.h" for getdtablesize().

remove obsolete register declarations

Use rwlocks as appropriate.

Fix RCSID's
Fix gcc warnings.
Add prototypes for functions that were declared in more than one place
to local.h or extern.h and use that instead.

Merged with 4.4lite.
Changed to conform to NetBSD's new RCS Id convention.

fix pr 594, pointed out by Chuck Silvers. fix taken from 4.4-Lite, rather
than his patch. (functionally identical, though...)

Add explicit return types to function definitions.

Declare rcsid strings so they are stored in text segment.

Add RCS identifiers.

branches: 1.1.1;
Initial revision

Add O_REGULAR to enforce opening of only regular files
(like we have O_DIRECTORY for directories).
This is better than open(, O_NONBLOCK), fstat()+S_ISREG() because opening
devices can have side effects.

Implement nofollow (l) for fopen(3).

branches: 1.17.22;
Add 'x' to the mode bits to specify O_EXCL, like glibc.

branches: 1.16.2;
- ansify, knf.
- no functional changes

branches: 1.15.2; 1.15.4;
* Arrange for interfaces that create new file descriptors to be able to
set close-on-exec on creation (http://udrepper.livejournal.com/20407.html).

- Add F_DUPFD_CLOEXEC to fcntl(2).
- Add MSG_CMSG_CLOEXEC to recvmsg(2) for unix file descriptor passing.
- Add dup3(2) syscall with a flags argument for O_CLOEXEC, O_NONBLOCK.
- Add pipe2(2) syscall with a flags argument for O_CLOEXEC, O_NONBLOCK.
- Add flags SOCK_CLOEXEC, SOCK_NONBLOCK to the socket type parameter
for socket(2) and socketpair(2).
- Add new paccept(2) syscall that takes an additional sigset_t to alter
the sigmask temporarily and a flags argument to set SOCK_CLOEXEC,
SOCK_NONBLOCK.
- Add new mode character 'e' to fopen(3) and popen(3) to open pipes
and file descriptors for close on exec.
- Add new kqueue1(2) syscall with a new flags argument to open the
kqueue file descriptor with O_CLOEXEC, O_NONBLOCK.

* Fix the system calls that take socklen_t arguments to actually do so.

* Don't include userland header files (signal.h) from system header files
(rump_syscallargs.h).

* Bump libc version for the new syscalls.

Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22280, verified by myself.

Merge the nathanw_sa branch.

branches: 1.12.6;
add and "f" flag to fopen that makes sure we are opening a plain file,
so that there is no chance to block.

back out the #ifdef _DIAGNOSTIC argument checks; too many people complained.
_DIAGASSERT() is still retained.

* use _DIAGASSERT() to check pointer arguments against NULL and file
descriptors against -1 (as appropriate).
* add actual checks which to detect stuff that would trigger_DIAGASSERT(),
and attempt to return a sane error condition.
* knf some code
* remove some `register' decls.

the first two items result in the addition of code similar to the
following in various functions:

_DIAGASSERT(path != NULL)
#ifdef _DIAGNOSTIC
if (path == NULL) {
errno = EFAULT;
return (-1);
}
#endif

include <fcntl.h> instead of <sys/file.h>

remove obsolete register declarations

Fix RCSID's
Fix gcc warnings.
Add prototypes for functions that were declared in more than one place
to local.h or extern.h and use that instead.

pull in local.h for prototypes. first arg to __sflags() is const char *

Merged with 4.4lite.
Changed to conform to NetBSD's new RCS Id convention.

Add explicit return types to function definitions.

Declare rcsid strings so they are stored in text segment.

Add RCS identifiers.

branches: 1.1.1;
Initial revision

Add the missing wide char support functions from freebsd.
XXX: long double support is missing until we get gdtoa, and add the
necessary wide functions.

Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22280, verified by myself.

Merged with 4.4lite.
Changed to conform to NetBSD's new RCS Id convention.

Add RCS identifiers.

branches: 1.1.1;
Initial revision

Sort SECTIONS.

Mention POSIX conformance of some functions, when they appeared, sprinkle .Xr.

branches: 1.4.8;
Convert TNF licenses to new 2 clause variant

branches: 1.3.30;
Use
.In header.h
instead of
.Fd #include \*[Lt]header.h\*[Gt]
Much easier to read and write, and supported by groff for ages.
Okayed by ross.

a, b, and c.

Add a manual page for flockfile(3) etc.; while here, also add *_unlocked()
to stdio(3) overview documentation. Fixes PR lib/20096 from Jason Thorpe.

- ansify, knf.
- no functional changes

branches: 1.10.6;
Don't redeclare __isthreaded.

branches: 1.9.8;
Remove clause 3 and 4 from TNF licenses

branches: 1.8.30;
Disable cancellation on the first lock, too, not just on internal
recursive locks (Duh).

Disable cancellation around the cond_wait() call, since that's also a
cancellation point. Arguably, that would be better handled with
pthread_cleanup_*(), but stubbing those for libc is difficult, and the
current non-exception-based implementation of cleanup handlers is
probably no faster than disabling and reenabling cancellation.
Finally, it only happens in the slow path where the thread is going to
sleep anyway...

Set the _LOCKINTERNAL() count on initial locking as well as subsequent
recursive locks.

Use threadlib stub rather than pthread_setcancelstate() directly.

Move guts of flockfile()/funlockfile() to __flockfile_internal(), which
takes an additional argument indicating whether this is an internal caller
taking the lock or an external (application) caller. When making an internal
lock, save the current thread cancellation state and disable cancellation
until the matching unlock. This should prevent canccelled threads from exiting
inside of stdio while holding a file lock and potentially leaving other
parts of the FILE structure in an inconsistent state.

Revert the conversion to libpthread's recursive mutexes. Too much
trouble is caused by the memory allocation in the mutex initialization,
and uncontested mutexes and condition variables have become faster in the
meantime.

Use recursive mutexes from libpthread rather than implementing
our own with normal mutexes and condition variables.

Merge the nathanw_sa branch.

branches: 1.1.2;
file flockfile.c was initially added on branch nathanw_sa.

English grammar nit: there's only one function described in this man page

Improve the short description.

Kill some extra spaces in function arguments.

branches: 1.6.2; 1.6.8;
- Mention that fmemopen(3) conforms POSIX-2008.
- Drop advertising clause in TNF license.

The was is not an argument but simply a part of sentense.

Add missing period at the end of sentense.

Remove trailing whitespace, merge error sections for same error, nits.

Make groff happy.

add man page as promised.

The flush function makes the tests fail. So undo it for now until we decide
if the tests are wrong or the flushing is wrong.

- widen the internal read and write calls to match the syscalls
- add funopen2() which provides access to flush() and the wider calls.
- make use of the new flush call in fmemopen()

From tnozaki@: make fpos_t a complex object that keeps track of the parse
state of the stream. Change argument of the seek function to funopen() from
fpos_t to off_t. Make f{g,s}etpos() use the new fpos_t struct, while providing
backwards compatible entry points. Approved by releng@

branches: 1.5.6;
validate flags/oflags from __sflag() befere call __sfp().
reviewed by enami-san, thanks.

fix off-by-one, pointed out by enami-san, thanks!

Change last commit to Use "ptrdiff_t" instead of "intptr_t" because the
former is more appropriate in this case.

Add explicit cast to fix lint error on 32bit platforms.

add fmemopen(3) derrived from POSIX:2008.
libc minor bump.

Start documenting history
https://www.bell-labs.com/usr/dmr/www/man31.pdf

branches: 1.35.4; 1.35.6;

Be more consistent with how we refer to fopen() - pointed out by wiz@

Some (mostly minor) wording improvements (IMO)

Fix xref. Remove Tn.

Implement nofollow (l) for fopen(3).

Allow changing the default buffering policy for a stdio stream during
construction by setting environment variables.

Use Pq to avoid space before O_EXCL.

branches: 1.29.8;
Add 'x' to the mode bits to specify O_EXCL, like glibc.

branches: 1.28.2;
Sort description of flags.

branches: 1.27.2; 1.27.4;
Use a list for clarity, update standards, etc.

Various minor improvements.

* Arrange for interfaces that create new file descriptors to be able to
set close-on-exec on creation (http://udrepper.livejournal.com/20407.html).

- Add F_DUPFD_CLOEXEC to fcntl(2).
- Add MSG_CMSG_CLOEXEC to recvmsg(2) for unix file descriptor passing.
- Add dup3(2) syscall with a flags argument for O_CLOEXEC, O_NONBLOCK.
- Add pipe2(2) syscall with a flags argument for O_CLOEXEC, O_NONBLOCK.
- Add flags SOCK_CLOEXEC, SOCK_NONBLOCK to the socket type parameter
for socket(2) and socketpair(2).
- Add new paccept(2) syscall that takes an additional sigset_t to alter
the sigmask temporarily and a flags argument to set SOCK_CLOEXEC,
SOCK_NONBLOCK.
- Add new mode character 'e' to fopen(3) and popen(3) to open pipes
and file descriptors for close on exec.
- Add new kqueue1(2) syscall with a new flags argument to open the
kqueue file descriptor with O_CLOEXEC, O_NONBLOCK.

* Fix the system calls that take socklen_t arguments to actually do so.

* Don't include userland header files (signal.h) from system header files
(rump_syscallargs.h).

* Bump libc version for the new syscalls.

\\ -> \e

Add restrict qualifiers to fopen()/freopen() arguments.

branches: 1.22.6;
Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22280, verified by myself.

Use
.In header.h
instead of
.Fd #include \*[Lt]header.h\*[Gt]
Much easier to read and write, and supported by groff for ages.
Okayed by ross.

avoid using multiple different ways of saying the same thing

Merge the nathanw_sa branch.

New sentence, new line. From Robert Elz.

import CAVEATS sections from OpenBSD.
with little tweak by me.

Add Xr to fileno(3).

Consistent wording: plain files -> regular files.

Generate <>& symbolically.

branches: 1.13.2;
Sprinkle some __restrict into stdio.

Make "f" standout better.

Comment out a paragraph describing behavior which NetBSD's fopen(3) does
not exhibit, per PR 6072.

add and "f" flag to fopen that makes sure we are opening a plain file,
so that there is no chance to block.

branches: 1.9.2;
* Add const keywords to function arguments as appropriate.
* Clarify the description of the initial position of the stream (some confusion
due to the way fdopen() was merged into a former ANSI-only document).

fix mdoc references and other mistakes

add LIBRARY section to man page

Fix a bizarre formatting error.

Add missing `STANDARDS' compliance statements. As we #define _POSIX_VERSION
to 199009L, bump existing statements to 1003.1-1990.

Merged with 4.4lite.
Changed to conform to NetBSD's new RCS Id convention.

Use "Er" for argument to -width in the lists in the ERROR sections so that
formatting is consistant.

Add RCS indentifiers.

branches: 1.1.1;
Initial revision

Revert to commits as they broke few rump tests

"Include namespace.h in a few of libc source files
[...]
This change finishes elimination of usage of the global name of the
following symbols:
- close -> _close
- execve -> _execve
- fcntl -> _fcntl
- setcontext -> _setcontext
- wait6 -> _wait6
- write -> _write
- writev -> _writev"

"Register more syscalls in namespace.h (of libc)

Add weak symbols for:
- fcntl
- close
- execve
- setcontext
- wait6
- write
- writev"

These changes broke:

fs/nfs/t_rquotad:get_nfs_be_1_both
fs/nfs/t_rquotad:get_nfs_be_1_group
fs/nfs/t_rquotad:get_nfs_be_1_user
fs/nfs/t_rquotad:get_nfs_le_1_both
fs/nfs/t_rquotad:get_nfs_le_1_group
fs/nfs/t_rquotad:get_nfs_le_1_user
lib/librumphijack/t_config:fdoff
lib/librumphijack/t_tcpip:http
lib/librumphijack/t_tcpip:nfs
lib/librumphijack/t_vfs:cpcopy
lib/librumphijack/t_vfs:mv_x
lib/librumphijack/t_vfs:paxcopy
net/net/t_forwarding:ipforwarding_fastforward_v4
net/net/t_forwarding:ipforwarding_fastforward_v6
net/net/t_forwarding:ipforwarding_fragment_v4
net/net/t_forwarding:ipforwarding_misc
net/net/t_mtudisc6:mtudisc6_basic

This revert fixes the failures, except lib/librumphijack/t_vfs.

The original changes were added in order to facilitate a usage of
sanitizers against programs linked with NetBSD's libc. It is no longer
needed, so abandon these changes.

Sponsored by <The NetBSD Foundation>

Include namespace.h in a few of libc source files

The NetBSD Standard C Library uses internally some of its functions with
a mangled symbol name, usually "_symbol". The internal functions shall not
use the global (public) symbols.

This change finishes elimination of usage of the global name of the
following symbols:
- close -> _close
- execve -> _execve
- fcntl -> _fcntl
- setcontext -> _setcontext
- wait6 -> _wait6
- write -> _write
- writev -> _writev

Sponsored by <The NetBSD Foundation>

Add O_REGULAR to enforce opening of only regular files
(like we have O_DIRECTORY for directories).
This is better than open(, O_NONBLOCK), fstat()+S_ISREG() because opening
devices can have side effects.

Avoid losing a fd (ie: close it) in the (ever so likely) case that the
fd exceeds the limits of what can be stored in a FILE (65535).

branches: 1.15.24;
- ansify, knf.
- no functional changes

From tnozaki@: make fpos_t a complex object that keeps track of the parse
state of the stream. Change argument of the seek function to funopen() from
fpos_t to off_t. Make f{g,s}etpos() use the new fpos_t struct, while providing
backwards compatible entry points. Approved by releng@

branches: 1.13.6;
Since _file is a short, check that the fd fits in it, otherwise bail with
EMFILE. We treat _file as an unsigned short to double our range, with a
special case for -1 (closed). Make a note of what we should do about stdio
if we ever bump libc. We could change _file in the future compatibly to an
int by putting it in the extension space but for now we don't bother.

branches: 1.12.22; 1.12.28;
Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22280, verified by myself.

Merge the nathanw_sa branch.

branches: 1.10.2;
make sure we preserve errno.

add and "f" flag to fopen that makes sure we are opening a plain file,
so that there is no chance to block.

back out the #ifdef _DIAGNOSTIC argument checks; too many people complained.
_DIAGASSERT() is still retained.

* use _DIAGASSERT() to check pointer arguments against NULL and file
descriptors against -1 (as appropriate).
* add actual checks which to detect stuff that would trigger_DIAGASSERT(),
and attempt to return a sane error condition.
* knf some code
* remove some `register' decls.

the first two items result in the addition of code similar to the
following in various functions:

_DIAGASSERT(path != NULL)
#ifdef _DIAGNOSTIC
if (path == NULL) {
errno = EFAULT;
return (-1);
}
#endif

remove obsolete register declarations

Fix RCSID's
Fix gcc warnings.
Add prototypes for functions that were declared in more than one place
to local.h or extern.h and use that instead.

branches: 1.4.2;
Merged with 4.4lite.
Changed to conform to NetBSD's new RCS Id convention.

Declare rcsid strings so they are stored in text segment.

Add RCS identifiers.

branches: 1.1.1;
Initial revision

Kill unneeded paragraph macro.

branches: 1.4.6; 1.4.12;
Remove 3rd and 4th clauses in christos' license. OK christos.

Use
.In header.h
instead of
.Fd #include \*[Lt]header.h\*[Gt]
Much easier to read and write, and supported by groff for ages.
Okayed by ross.

Merge the nathanw_sa branch.

branches: 1.1.2;
- Migrate fparseln(3) from libutil to libc, where it should have been in
the first place...
- Bump libutil major (to 7.0) and libc minor (to 12.91).

Remove 3rd and 4th clauses in christos' license. OK christos.

merge christos-time_t

1. reworking PR lib/40317:
libnbcompat already contains empty fparseln.lo
so previous fix doesn't work correctly.
i've just added broken fparseln check to configure script.

2. reworking cross build breakage under FreeBSD/MacOS X.
FreeBSD/MacOS X still have public /usr/include/runetype.h
derived from 4.4BSD-Lite. so i renamed out private header from
src/lib/libc/locale/runetype.h to src/lib/libc/locale/runetype_local.h
to solve this problems.

3. fix build breakage when CITRUS=no was set.

branches: 1.7.18; 1.7.20;
modify the previous fix so that no pointless realloc()s are done in
the case of multiple empty continuation lines, and comment the code
to make the logics obvious
fix an unrelated comment

-fix a condition so that fparseln() doesn't report spurious empty lines
eg after 2 comment lines, or on EOF after a single comment line
-no escape character means no escaped characters

branches: 1.5.10;
Completely rework how tools/compat is done. Purge all uses/references to
_NETBSD_SOURCE as this makes cross building from older/newer versions of
NetBSD harder, not easier (and also makes the resulting tools 'different')

Wrap all required code with the inclusion of nbtool_config.h, attempt to
only use POSIX code in all places (or when reasonable test w. configure and
provide definitions: ala u_int, etc).

Reviewed by lukem. Tested on FreeBSD 4.9, Redhat Linux ES3, NetBSD 1.6.2 x86
NetBSD current (x86 and amd64) and Solaris 9.

Fixes PR's: PR#17762 PR#25944

make this build in the tools/compat reachover
case if HAVE_FPARSELN is not present
patch from Christian Limpach

Add FLOCKFILE() locking - should be threadsafe now.
(Didn't test the !HAVE_FPARSELN && !_REENTRANT case -- this might be
hit in tools/compat on some host platforms.)

branches: 1.2.2;
Merge the nathanw_sa branch.

branches: 1.1.2;
- Migrate fparseln(3) from libutil to libc, where it should have been in
the first place...
- Bump libutil major (to 7.0) and libc minor (to 12.91).

remove diag assert - the compiler demands fp is non NULL now.

branches: 1.14.2; 1.14.4;
fixes for GCC 6:

- -Wstrict-prototypes is not available for C++, so don't try to
ignore it for C++.
- remove many _DIAGASSERT() checks against not NULL for functions
with arguments with nonnull attributes. in two cases, leave
code behind that should set defaults to "(null)".
- use -Wno-error=frame-address for i386 mcount, as it seems valid
to assume the caller will have a frame.fair

Add explicit locale versions for the printf family. Replace asprintf,
snprintf and sprintf with simple wrappers around the corresponding
va_list functions to reduce code duplication.

branches: 1.12.2;
- ansify, knf.
- no functional changes

branches: 1.11.56;
Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22280, verified by myself.

Merge the nathanw_sa branch.

__STDC__ is always defined on NetBSD.

branches: 1.8.10;
back out the #ifdef _DIAGNOSTIC argument checks; too many people complained.
_DIAGASSERT() is still retained.

* use _DIAGASSERT() to check pointer arguments against NULL and file
descriptors against -1 (as appropriate).
* add actual checks which to detect stuff that would trigger_DIAGASSERT(),
and attempt to return a sane error condition.
* knf some code
* remove some `register' decls.

the first two items result in the addition of code similar to the
following in various functions:

_DIAGASSERT(path != NULL)
#ifdef _DIAGNOSTIC
if (path == NULL) {
errno = EFAULT;
return (-1);
}
#endif

Fix RCSID's
Fix gcc warnings.
Add prototypes for functions that were declared in more than one place
to local.h or extern.h and use that instead.

Merged with 4.4lite.
Changed to conform to NetBSD's new RCS Id convention.