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Diffstat (limited to 'strings/strnmov.c')
-rw-r--r-- | strings/strnmov.c | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/strings/strnmov.c b/strings/strnmov.c new file mode 100644 index 00000000..41d772c6 --- /dev/null +++ b/strings/strnmov.c @@ -0,0 +1,46 @@ +/* Copyright (c) 2000 TXT DataKonsult Ab & Monty Program Ab + Copyright (c) 2009-2011, Monty Program Ab + + Redistribution and use in source and binary forms, with or without + modification, are permitted provided that the following conditions are + met: + + 1. Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + + 2. Redistributions in binary form must the following disclaimer in + the documentation and/or other materials provided with the + distribution. + + THIS SOFTWARE IS PROVIDED BY <COPYRIGHT HOLDER> ``AS IS'' AND ANY + EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> OR + CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + SUCH DAMAGE. +*/ + +/* + strnmov(dst,src,length) moves length characters, or until end, of src to + dst and appends a closing NUL to dst if src is shorter than length. + The result is a pointer to the first NUL in dst, or is dst+n if dst was + truncated. +*/ + +#include "strings_def.h" + +char *strnmov(register char *dst, register const char *src, size_t n) +{ + while (n-- != 0) { + if (!(*dst++ = *src++)) { + return (char*) dst-1; + } + } + return dst; +} |