41 lines
785 B
C
41 lines
785 B
C
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/*
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** Copyright 1998-2002 University of Illinois Board of Trustees
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** Copyright 1998-2002 Mark D. Roth
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** All rights reserved.
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**
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** strrstr.c - strrstr() function for compatibility library
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**
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** Mark D. Roth <roth@uiuc.edu>
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** Campus Information Technologies and Educational Services
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** University of Illinois at Urbana-Champaign
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*/
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#include <stdio.h>
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#include <sys/types.h>
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#include <string.h>
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/*
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** find the last occurrance of find in string
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*/
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char *
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strrstr(char *string, char *find)
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{
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size_t stringlen, findlen;
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char *cp;
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findlen = strlen(find);
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stringlen = strlen(string);
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if (findlen > stringlen)
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return NULL;
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for (cp = string + stringlen - findlen; cp >= string; cp--)
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if (strncmp(cp, find, findlen) == 0)
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return cp;
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return NULL;
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}
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