CVS log for src/lib/libc/stdio/fread.3

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for fread(3) and fwrite(3) check for (size * nmemb) size_t overflow, and
error out with EOVERFLOW if it happens; this is less silly answer
to a silly call than returning some randomly wrapped length

change adapted from OpenBSD

FreeBSD has a similar check, but they return EINVAL instead, feel
free to adjust if SUS or other standard mandates specific value

suggested by Kamil Rytarowski

.Xr for fsetpos(3), not .Fn.

merge christos-time_t

merge with head.

Pull up following revision(s) (requested by christos in ticket #201):
	lib/libc/stdio/fread.3: revision 1.13
PR/8359: Chris Demetriou: Document fread/fwrite mixing behavior.

PR/9359: Chris Demetriou: Document fread/fwrite mixing behavior.

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.

Catch up to -current.

Catch up to -current.

Generate <>& symbolically.

apparently ansi c only required fread(3) to return 0 if size or nmembs == 0.
however, susv2 adds the same to fwrite(3), so add the explicit check.
document this for both fread & fwrite. move diagassert for buf!=NULL to after
the (size * nmembs) == 0 check.

this has the helpful side effect of preventing the _DIAGASSERT()ion in
fwrite() being triggered by lots of 3rdparty code that calls fwrite() with
buf=NULL count=0

Sprinkle some __restrict into stdio.

add LIBRARY section to man page

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

imported from 44lite

fread and fwrite both return size_t, not int.

Add RCS indentifiers.

Fix various bugs in man pages (from 386BSD patch 130).

initial import of 386bsd-0.1 sources

Initial revision