handle sizeof(off_t) > sizeof(size_t)

fix NLS compilation

Add glue to disable locale code in order to be smaller.

reduce casts

Restore NetBSD RCS Ids.

sync with FreeBSD:
- NLS support
- GNU extensions
- bug fixes

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 t

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@

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Prevent regcomp/regexec DoS attacks by limiting the amount of memory used
and the level of recursion. Thanks to Maksymilian Arciemowicz for discovery
and help with the implementation.

sign-compare fixes

ANSIfy.

Nuke __P.

constify and remove __UNCONST.

Avoid infinite recursion on:

echo "foo foo bar bar bar baz" | sed 's/\([^ ]*\)\( *\1\)*/\1/g'

From OpenBSD.

Redo previous in a different way; cast the character held in int variable
as unsigned char just before passing isalnum() in ISWORD() rather than
fetching it as unsigned char. It is ok since EOF is n

Redo previous in a different way; cast the character held in int variable
as unsigned char just before passing isalnum() in ISWORD() rather than
fetching it as unsigned char. It is ok since EOF is never passed to ISWORD()
(though it will be a bit inefficient.)

Addresses PR#24929.

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Sprinkle cast to prevent unwanted sign extension. Some of those actually
makes sed invoked during build process an out of bound array access.

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

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

make this compile with -DREDEBUG again.

PR/14975: Takayoshi Kochi: memory leak in regexec(3).
Always free m->pmatch and m->lastpos on error.

* 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 attemp

* 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

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Avoid overflow when adding a 64 bit quantity to a 32 bit pointer on 32 bit
machines.

regoff_t is used like size_t within the code, it should be defined
so instead of off_t. This makes some casts unnecessary.
We can't change the definition now due to binary compatibility, so
prepare f

regoff_t is used like size_t within the code, it should be defined
so instead of off_t. This makes some casts unnecessary.
We can't change the definition now due to binary compatibility, so
prepare for the next libc major version.

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Delint:
- we don't need to use longs; convert to use int32_t.
- remove break statements after returns.
- cast things properly.

remove obsolete register declarations

Add missing return NULL;

- convert unsafe strcpy(), strcat() and sprintf() to the `n' versions.
- some KNF.