diff options
Diffstat (limited to 'contrib/openpam/lib/libpam/openpam_strlcat.c')
-rw-r--r-- | contrib/openpam/lib/libpam/openpam_strlcat.c | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/contrib/openpam/lib/libpam/openpam_strlcat.c b/contrib/openpam/lib/libpam/openpam_strlcat.c new file mode 100644 index 0000000..64ba9ab --- /dev/null +++ b/contrib/openpam/lib/libpam/openpam_strlcat.c @@ -0,0 +1,58 @@ +/*- + * Copyright (c) 2011-2012 Dag-Erling Smørgrav + * All rights reserved. + * + * 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. + * 3. The name of the author may not be used to endorse or promote + * products derived from this software without specific prior written + * permission. + * + * 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. + * + * $Id: openpam_strlcat.c 648 2013-03-05 17:54:27Z des $ + */ + +#ifdef HAVE_CONFIG_H +# include "config.h" +#endif + +#ifndef HAVE_STRLCAT + +#include <stddef.h> + +#include "openpam_strlcat.h" + +/* like strcat(3), but always NUL-terminates; returns strlen(src) */ +size_t +openpam_strlcat(char *dst, const char *src, size_t size) +{ + size_t len; + + for (len = 0; *dst && size > 1; ++len, --size) + dst++; + for (; *src && size > 1; ++len, --size) + *dst++ = *src++; + *dst = '\0'; + while (*src) + ++len, ++src; + return (len); +} + +#endif |