diff options
Diffstat (limited to 'lib/openpam_strlcmp.h')
-rw-r--r-- | lib/openpam_strlcmp.h | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/lib/openpam_strlcmp.h b/lib/openpam_strlcmp.h new file mode 100644 index 0000000..c692225 --- /dev/null +++ b/lib/openpam_strlcmp.h @@ -0,0 +1,46 @@ +/*- + * Copyright (c) 2011 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 + * in this position and unchanged. + * 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. + * + * $Id: openpam_strlcmp.h 475 2011-11-03 15:29:24Z des $ + */ + +#ifndef OPENPAM_STRLCMP_H_INCLUDED +#define OPENPAM_STRLCMP_H_INCLUDED + +#ifndef HAVE_STRLCMP +/* like strcmp(3), but verifies that the entirety of s1 was matched */ +static int +strlcmp(const char *s1, const char *s2, size_t len) +{ + + for (; len && *s1 && *s2; --len, ++s1, ++s2) + if (*s1 != *s2) + return ((unsigned char)*s1 - (unsigned char)*s2); + return ((unsigned char)*s1); +} +#endif + +#endif |