From 887b67908d0e6a2b2f50e04319c1cf4412a25f89 Mon Sep 17 00:00:00 2001 From: David Oberhollenzer Date: Fri, 25 Oct 2019 00:16:21 +0200 Subject: Add libutil implementation for strndup in case it isn't available "Some" "non-POSIX systems" don't have that. Signed-off-by: David Oberhollenzer --- lib/util/Makemodule.am | 1 + lib/util/strndup.c | 31 +++++++++++++++++++++++++++++++ 2 files changed, 32 insertions(+) create mode 100644 lib/util/strndup.c (limited to 'lib') diff --git a/lib/util/Makemodule.am b/lib/util/Makemodule.am index ffd594d..e624bbd 100644 --- a/lib/util/Makemodule.am +++ b/lib/util/Makemodule.am @@ -1,6 +1,7 @@ libutil_la_SOURCES = include/util/util.h include/util/compat.h libutil_la_SOURCES += lib/util/str_table.c include/util/str_table.h libutil_la_SOURCES += lib/util/alloc.c lib/util/canonicalize_name.c +libutil_la_SOURCES += lib/util/strndup.c libutil_la_CFLAGS = $(AM_CFLAGS) libutil_la_CPPFLAGS = $(AM_CPPFLAGS) libutil_la_LDFLAGS = $(AM_LDFLAGS) diff --git a/lib/util/strndup.c b/lib/util/strndup.c new file mode 100644 index 0000000..8031d23 --- /dev/null +++ b/lib/util/strndup.c @@ -0,0 +1,31 @@ +/* SPDX-License-Identifier: LGPL-3.0-or-later */ +/* + * strndup.c + * + * Copyright (C) 2019 David Oberhollenzer + */ +#include "config.h" +#include "util/compat.h" + +#include +#include + +#ifndef HAVE_STRNDUP +char *strndup(const char *str, size_t max_len) +{ + size_t len = 0; + char *out; + + while (len < max_len && str[len] != '\0') + ++len; + + out = malloc(len + 1); + + if (out != NULL) { + memcpy(out, str, len); + out[len] = '\0'; + } + + return out; +} +#endif -- cgit v1.2.3