diff options
Diffstat (limited to 'sys/libkern/strndup.c')
-rw-r--r-- | sys/libkern/strndup.c | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/sys/libkern/strndup.c b/sys/libkern/strndup.c new file mode 100644 index 0000000..43983d5 --- /dev/null +++ b/sys/libkern/strndup.c @@ -0,0 +1,51 @@ +/*- + * Copyright (c) 2003 Networks Associates Technology, Inc. + * All rights reserved. + * + * This software was developed for the FreeBSD Project by Network + * Associates Laboratories, the Security Research Division of Network + * Associates, Inc. under DARPA/SPAWAR contract N66001-01-C-8035 + * ("CBOSS"), as part of the DARPA CHATS research program. + * + * 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 reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``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 THE AUTHOR 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. + */ + +#include <sys/cdefs.h> +__FBSDID("$FreeBSD$"); + +#include <sys/param.h> +#include <sys/kernel.h> +#include <sys/libkern.h> +#include <sys/malloc.h> + +char * +strndup(const char *string, size_t maxlen, struct malloc_type *type) +{ + size_t len; + char *copy; + + len = strnlen(string, maxlen) + 1; + copy = malloc(len, type, M_WAITOK); + bcopy(string, copy, len); + copy[len - 1] = '\0'; + return (copy); +} |