Fix undefined behaviour. * lib/bitrotate.h (rotl16, rotr16, rotl8, rotr8): Case x to 'unsigned int', to avoid shift operations on 'int'. * lib/xmemdup0.c (xmemdup0): Don't invoke memcpy with a zero size. * tests/test-count-leading-zeros.c (main): Use a random number that has as many bits as TYPE, not only 2*15 or 2*31 bits. * tests/test-count-trailing-zeros.c (main): Likewise. * tests/test-count-one-bits.c (main): Likewise. * tests/test-memmem.c: Don't include "null-ptr.h". (main): Use zerosize_ptr() instead of null_ptr(). * modules/memmem-tests (Files): Remove tests/null-ptr.h.

Description:
Read entire utmp file into memory.

Files:
lib/readutmp.h
lib/readutmp.c
m4/readutmp.m4

Depends-on:
extensions
xalloc
stdbool
stdint

configure.ac:
gl_READUTMP
if test $ac_cv_header_utmp_h = yes || test $ac_cv_header_utmpx_h = yes; then
  AC_LIBOBJ([readutmp])
fi

Makefile.am:

Include:
"readutmp.h"

License:
GPL

Maintainer:
Jim Meyering & Paul Eggert