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Diffstat (limited to 'src/lib/ppc405lib/strcasecmp.c')
| -rw-r--r-- | src/lib/ppc405lib/strcasecmp.c | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/src/lib/ppc405lib/strcasecmp.c b/src/lib/ppc405lib/strcasecmp.c new file mode 100644 index 0000000..fc7585c --- /dev/null +++ b/src/lib/ppc405lib/strcasecmp.c @@ -0,0 +1,90 @@ +/* IBM_PROLOG_BEGIN_TAG */ +/* This is an automatically generated prolog. */ +/* */ +/* $Source: src/lib/ppc405lib/strcasecmp.c $ */ +/* */ +/* OpenPOWER OnChipController Project */ +/* */ +/* Contributors Listed Below - COPYRIGHT 2015 */ +/* [+] International Business Machines Corp. */ +/* */ +/* */ +/* Licensed under the Apache License, Version 2.0 (the "License"); */ +/* you may not use this file except in compliance with the License. */ +/* You may obtain a copy of the License at */ +/* */ +/* http://www.apache.org/licenses/LICENSE-2.0 */ +/* */ +/* Unless required by applicable law or agreed to in writing, software */ +/* distributed under the License is distributed on an "AS IS" BASIS, */ +/* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or */ +/* implied. See the License for the specific language governing */ +/* permissions and limitations under the License. */ +/* */ +/* IBM_PROLOG_END_TAG */ +// $Id: strcasecmp.c,v 1.1.1.1 2013/12/11 20:49:20 bcbrock Exp $ +// $Source: /afs/awd/projects/eclipz/KnowledgeBase/.cvsroot/eclipz/chips/p8/working/procedures/lib/strcasecmp.c,v $ +//----------------------------------------------------------------------------- +// *! (C) Copyright International Business Machines Corp. 2013 +// *! All Rights Reserved -- Property of IBM +// *! *** IBM Confidential *** +//----------------------------------------------------------------------------- + +/// \file strcasecmp.c +/// \brief Implementation of strcasecmp() and strncasecmp() +/// +/// These routines are rarely used, hence broken out into a separate file to +/// save code space for most applications. + +#include "ssx.h" +#include "string.h" + +/// Compare two strings ignoring case +/// +/// The strcasecmp() function compares the two strings \a s1 and \a s2, +/// ignoring the case of the characters. It returns an integer less than, +/// equal to, or greater than zero if \a s1 is found, respectively, to be less +/// than, to match, or be greater than \a s2. + +int +strcasecmp(const char* s1, const char* s2) +{ + int rc; + + if (s1 == s2) { + rc = 0; + } else { + while(*s1 && (tolower(*s1) == tolower(*s2))) { + s1++; + s2++; + } + rc = *((unsigned char *)s1) - *((unsigned char *)s2); + } + return rc; +} + + +/// Compare a portion of two strings ignoring case +/// +/// The strncmp() function compares at most the first \n characters of the two +/// strings \a s1 and \a s2, ignoring the case of the characters. It returns +/// an integer less than, equal to, or greater than zero if (the prefix of) \a +/// s1 is found, respectively, to be less than, to match, or be greater than +/// (the prefix of) \a s2. + +int +strncasecmp(const char* s1, const char* s2, size_t n) +{ + int rc; + + if ((s1 == s2) || (n == 0)) { + rc = 0; + } else { + while(*s1 && (tolower(*s1) == tolower(*s2)) && n--) { + s1++; + s2++; + } + rc = *((unsigned char *)s1) - *((unsigned char *)s2); + } + return rc; +} |
