long-options: add parse_gnu_standard_options_only Discussed in https://bugs.gnu.org/33468 . * lib/long-options.c (parse_long_options): Use EXIT_SUCCESS instead of 0. (parse_gnu_standard_options_only): Add function to process the GNU default options --help and --version and fail for any other unknown long or short option. See https://gnu.org/prep/standards/html_node/Command_002dLine-Interfaces.html . * lib/long-options.h (parse_gnu_standard_options_only): Declare it. * modules/long-options (depends-on): Add stdbool, exitfail. * top/maint.mk (sc_prohibit_long_options_without_use): Update syntax-check rule, add new function name.

Description:
Duplicate a bounded initial segment of a string, with out-of-memory checking.

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

Depends-on:
strndup
xalloc

configure.ac:
gl_XSTRNDUP

Makefile.am:
lib_SOURCES += xstrndup.h xstrndup.c

Include:
"xstrndup.h"

License:
GPL

Maintainer:
Simon Josefsson