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.

Set error indicator on invalid arguments. From Carsten Hey.

Test against SSIZE_MAX as pointed out by enami tsugutomo.

Pass lint.

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

Protect getdelim when used internally.

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.
f

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.

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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 li

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).

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

__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 tha

__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.

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Allow a buffer of SSIZE_MAX + 1 as the returned bytes do not include the NULL.

pass lint

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