88 lines
2.1 KiB
C
88 lines
2.1 KiB
C
/*
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* Copyright (C) 1991, 1992 Linus Torvalds
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* Copyright (C) 2004 Tobias Lorenz
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*
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* string handling functions
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* based on linux/lib/string.c
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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FILE_LICENCE ( GPL2_ONLY );
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/*
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* stupid library routines.. The optimized versions should generally be found
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* as inline code in <asm-xx/string.h>
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*
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* These are buggy as well..
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*
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* * Fri Jun 25 1999, Ingo Oeser <ioe@informatik.tu-chemnitz.de>
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* - Added strsep() which will replace strtok() soon (because strsep() is
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* reentrant and should be faster). Use only strsep() in new code, please.
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*/
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/*
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* these are the standard string functions that are currently not used by
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* any code in etherboot. put into a separate file to avoid linking them in
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* with the rest of string.o
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* if anything ever does want to use a function of these, consider moving
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* the function in question back into string.c
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*/
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#include <stdint.h>
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#include <stdlib.h>
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#include <string.h>
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#include <ctype.h>
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/* *** FROM string.c *** */
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#ifndef __HAVE_ARCH_STRPBRK
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/**
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* strpbrk - Find the first occurrence of a set of characters
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* @cs: The string to be searched
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* @ct: The characters to search for
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*/
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char * strpbrk(const char * cs,const char * ct)
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{
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const char *sc1,*sc2;
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for( sc1 = cs; *sc1 != '\0'; ++sc1) {
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for( sc2 = ct; *sc2 != '\0'; ++sc2) {
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if (*sc1 == *sc2)
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return (char *) sc1;
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}
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}
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return NULL;
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}
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#endif
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#ifndef __HAVE_ARCH_STRSEP
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/**
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* strsep - Split a string into tokens
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* @s: The string to be searched
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* @ct: The characters to search for
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*
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* strsep() updates @s to point after the token, ready for the next call.
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*
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* It returns empty tokens, too, behaving exactly like the libc function
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* of that name. In fact, it was stolen from glibc2 and de-fancy-fied.
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* Same semantics, slimmer shape. ;)
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*/
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char * strsep(char **s, const char *ct)
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{
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char *sbegin = *s, *end;
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if (sbegin == NULL)
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return NULL;
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end = strpbrk(sbegin, ct);
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if (end)
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*end++ = '\0';
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*s = end;
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return sbegin;
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}
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#endif
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