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117 lines
5.6 KiB
C
117 lines
5.6 KiB
C
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/***************************************************************************
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* strcasecmp.c -- strcasecmp and strncasecmp for systems (like Windows) *
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* which do not already have them. *
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* *
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***********************IMPORTANT NMAP LICENSE TERMS************************
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* *
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* The Nmap Security Scanner is (C) 1996-2022 Nmap Software LLC ("The Nmap *
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* Project"). Nmap is also a registered trademark of the Nmap Project. *
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* *
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* This program is distributed under the terms of the Nmap Public Source *
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* License (NPSL). The exact license text applying to a particular Nmap *
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* release or source code control revision is contained in the LICENSE *
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* file distributed with that version of Nmap or source code control *
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* revision. More Nmap copyright/legal information is available from *
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* https://nmap.org/book/man-legal.html, and further information on the *
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* NPSL license itself can be found at https://nmap.org/npsl/ . This *
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* header summarizes some key points from the Nmap license, but is no *
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* substitute for the actual license text. *
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* *
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* Nmap is generally free for end users to download and use themselves, *
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* including commercial use. It is available from https://nmap.org. *
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* *
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* The Nmap license generally prohibits companies from using and *
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* redistributing Nmap in commercial products, but we sell a special Nmap *
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* OEM Edition with a more permissive license and special features for *
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* this purpose. See https://nmap.org/oem/ *
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* *
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* If you have received a written Nmap license agreement or contract *
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* stating terms other than these (such as an Nmap OEM license), you may *
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* choose to use and redistribute Nmap under those terms instead. *
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* *
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* The official Nmap Windows builds include the Npcap software *
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* (https://npcap.com) for packet capture and transmission. It is under *
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* separate license terms which forbid redistribution without special *
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* permission. So the official Nmap Windows builds may not be *
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* redistributed without special permission (such as an Nmap OEM *
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* license). *
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* *
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* Source is provided to this software because we believe users have a *
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* right to know exactly what a program is going to do before they run it. *
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* This also allows you to audit the software for security holes. *
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* *
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* Source code also allows you to port Nmap to new platforms, fix bugs, *
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* and add new features. You are highly encouraged to submit your *
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* changes as a Github PR or by email to the dev@nmap.org mailing list *
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* for possible incorporation into the main distribution. Unless you *
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* specify otherwise, it is understood that you are offering us very *
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* broad rights to use your submissions as described in the Nmap Public *
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* Source License Contributor Agreement. This is important because we *
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* fund the project by selling licenses with various terms, and also *
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* because the inability to relicense code has caused devastating *
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* problems for other Free Software projects (such as KDE and NASM). *
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* *
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* The free version of Nmap is distributed in the hope that it will be *
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* useful, but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. Warranties, *
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* indemnification and commercial support are all available through the *
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* Npcap OEM program--see https://nmap.org/oem/ *
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* *
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***************************************************************************/
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/* $Id$ */
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#if !defined(HAVE_STRCASECMP) || !defined(HAVE_STRNCASECMP)
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#include <stdlib.h>
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#include <string.h>
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#include "nbase.h"
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#endif
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#ifndef HAVE_STRCASECMP
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int strcasecmp(const char *s1, const char *s2)
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{
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int i, ret;
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char *cp1, *cp2;
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cp1 = safe_malloc(strlen(s1) + 1);
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cp2 = safe_malloc(strlen(s2) + 1);
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for (i = 0; i < strlen(s1) + 1; i++)
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cp1[i] = tolower((int) (unsigned char) s1[i]);
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for (i = 0; i < strlen(s2) + 1; i++)
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cp2[i] = tolower((int) (unsigned char) s2[i]);
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ret = strcmp(cp1, cp2);
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free(cp1);
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free(cp2);
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return ret;
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}
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#endif
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#ifndef HAVE_STRNCASECMP
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int strncasecmp(const char *s1, const char *s2, size_t n)
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{
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int i, ret;
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char *cp1, *cp2;
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cp1 = safe_malloc(strlen(s1) + 1);
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cp2 = safe_malloc(strlen(s2) + 1);
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for (i = 0; i < strlen(s1) + 1; i++)
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cp1[i] = tolower((int) (unsigned char) s1[i]);
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for (i = 0; i < strlen(s2) + 1; i++)
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cp2[i] = tolower((int) (unsigned char) s2[i]);
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ret = strncmp(cp1, cp2, n);
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free(cp1);
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free(cp2);
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return ret;
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}
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#endif
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