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Diffstat (limited to 'libiberty/stpncpy.c')
-rw-r--r-- | libiberty/stpncpy.c | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/libiberty/stpncpy.c b/libiberty/stpncpy.c new file mode 100644 index 0000000..0984340 --- /dev/null +++ b/libiberty/stpncpy.c @@ -0,0 +1,54 @@ +/* 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; +} |