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authorXavier ASUS <xavi92psx@gmail.com>2019-10-18 00:31:54 +0200
committerXavier ASUS <xavi92psx@gmail.com>2019-10-18 00:31:54 +0200
commit268a53de823a6750d6256ee1fb1e7707b4b45740 (patch)
tree42c1799a9a82b2f7d9790ee9fe181d72a7274751 /support/sdbinutils/libiberty/strndup.c
downloadsdcc-gas-268a53de823a6750d6256ee1fb1e7707b4b45740.tar.gz
sdcc-3.9.0 fork implementing GNU assembler syntax
This fork aims to provide better support for stm8-binutils
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diff --git a/support/sdbinutils/libiberty/strndup.c b/support/sdbinutils/libiberty/strndup.c
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+/* Implement the strndup function.
+ Copyright (C) 2005-2018 Free Software Foundation, Inc.
+ Written by Kaveh R. Ghazi <ghazi@caip.rutgers.edu>.
+
+This file is part of the libiberty library.
+Libiberty is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public
+License as published by the Free Software Foundation; either
+version 2 of the License, or (at your option) any later version.
+
+Libiberty is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with libiberty; see the file COPYING.LIB. If
+not, write to the Free Software Foundation, Inc., 51 Franklin Street - Fifth Floor,
+Boston, MA 02110-1301, USA. */
+
+/*
+
+@deftypefn Extension char* strndup (const char *@var{s}, size_t @var{n})
+
+Returns a pointer to a copy of @var{s} with at most @var{n} characters
+in memory obtained from @code{malloc}, or @code{NULL} if insufficient
+memory was available. The result is always NUL terminated.
+
+@end deftypefn
+
+*/
+
+#include "ansidecl.h"
+#include <stddef.h>
+
+extern size_t strnlen (const char *s, size_t maxlen);
+extern PTR malloc (size_t);
+extern PTR memcpy (PTR, const PTR, size_t);
+
+char *
+strndup (const char *s, size_t n)
+{
+ char *result;
+ size_t len = strnlen (s, n);
+
+ result = (char *) malloc (len + 1);
+ if (!result)
+ return 0;
+
+ result[len] = '\0';
+ return (char *) memcpy (result, s, len);
+}