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-rw-r--r--libiberty/stpncpy.c54
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diff --git a/libiberty/stpncpy.c b/libiberty/stpncpy.c
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+/* Implement the stpncpy function.
+ Copyright (C) 2003 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., 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA. */
+
+/*
+
+@deftypefn Supplemental char* stpncpy (char *@var{dst}, const char *@var{src}, size_t @var{len})
+
+Copies the string @var{src} into @var{dst}, copying exactly @var{len}
+and padding with zeros if necessary. If @var{len} < strlen(@var{src})
+then return @var{dst} + @var{len}, otherwise returns @var{dst} +
+strlen(@var{src}).
+
+@end deftypefn
+
+*/
+
+#include <ansidecl.h>
+#ifdef ANSI_PROTOTYPES
+#include <stddef.h>
+#else
+#define size_t unsigned long
+#endif
+
+extern size_t strlen PARAMS ((const char *));
+extern PTR strncpy PARAMS ((char *, const char *, size_t));
+
+char *
+stpncpy (dst, src, len)
+ char *dst;
+ const char *src;
+ size_t len;
+{
+ size_t n = strlen (src);
+ if (n > len)
+ n = len;
+ return strncpy (dst, src, len) + n;
+}