31 lines
615 B
C
31 lines
615 B
C
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/*
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* Copyright (C) 2006 Apple Computer, Inc. All rights reserved.
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*
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* This document is the property of Apple Computer, Inc.
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* It is considered confidential and proprietary.
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*
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* This document may not be reproduced or transmitted in any form,
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* in whole or in part, without the express written permission of
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* Apple Computer, Inc.
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*/
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#include <string.h>
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#include <sys/types.h>
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char *
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strstr(char const *s1, char const *s2)
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{
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int l1, l2;
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l2 = strlen(s2);
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if (!l2)
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return (char *)s1;
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l1 = strlen(s1);
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while(l1 >= l2) {
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l1--;
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if (!memcmp(s1,s2,l2))
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return (char *)s1;
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s1++;
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}
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return NULL;
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}
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