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https://github.com/ARM-software/arm-trusted-firmware.git
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e509d05728
This patch adds the missing features to the C library included in the Trusted Firmware to build PolarSSL: - strcasecmp() function - exit() function - sscanf()* function - time.h header file (and its dependencies) * NOTE: the sscanf() function is not a real implementation. It just returns the number of expected arguments by counting the number of '%' characters present in the formar string. This return value is good enough for PolarSSL because during the certificate parsing only the return value is checked. The certificate validity period is ignored. Change-Id: I43bb3742f26f0bd458272fccc3d72a7f2176ab3d
66 lines
2.3 KiB
C
66 lines
2.3 KiB
C
/*-
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* Copyright (c) 1990, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* Chris Torek.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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/*
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* Portions copyright (c) 2014, ARM Limited and Contributors.
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* All rights reserved.
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*/
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#include <sys/cdefs.h>
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#include <sys/ctype.h>
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#include <string.h>
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/*
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* Compare strings.
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*/
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int
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strcmp(const char *s1, const char *s2)
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{
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while (*s1 == *s2++)
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if (*s1++ == '\0')
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return 0;
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return *(const unsigned char *)s1 - *(const unsigned char *)(s2 - 1);
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}
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int
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strcasecmp(const char *s1, const char *s2)
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{
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const unsigned char *us1 = (const unsigned char *)s1;
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const unsigned char *us2 = (const unsigned char *)s2;
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while (tolower(*us1) == tolower(*us2)) {
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if (*us1++ == '\0')
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return 0;
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us2++;
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}
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return tolower(*us1) - tolower(*us2);
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}
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