unistr/*, uniconv/*: Fix undefined behaviour. Reported by Jeffrey Walton <noloader@gmail.com>. * lib/unistr/u-cpy.h (FUNC): Don't invoke memcpy with a zero size. * lib/unistr/u-cpy-alloc.h (FUNC): Likewise. * lib/uniconv/u8-conv-from-enc.c (u8_conv_from_encoding): Likewise. * lib/uniconv/u8-conv-to-enc.c (u8_conv_to_encoding): Likewise.

Description:
Reading symbolic links without size limitation, relative to fd.

Files:
lib/xreadlink.h
lib/xreadlinkat.c

Depends-on:
areadlinkat
xalloc

configure.ac:
gl_MODULE_INDICATOR([xreadlinkat])

Makefile.am:
lib_SOURCES += xreadlinkat.c

Include:
"xreadlink.h"

License:
GPL

Maintainer:
Jim Meyering, Eric Blake