166 lines
3.1 KiB
C
166 lines
3.1 KiB
C
/*
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* Copyright (C) 1999-2003 Hewlett-Packard Co.
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* Contributed by Stephane Eranian <eranian@hpl.hp.com>
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*
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* This file is part of the ELILO, the EFI Linux boot loader.
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*
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* ELILO is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2, or (at your option)
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* any later version.
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*
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* ELILO is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with ELILO; see the file COPYING. If not, write to the Free
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* Software Foundation, 59 Temple Place - Suite 330, Boston, MA
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* 02111-1307, USA.
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*
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* Please check out the elilo.txt for complete documentation on how
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* to use this program.
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*/
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#include <efi.h>
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#include <efilib.h>
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//#define CHAR_NULL (CHAR16)'\0'
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CHAR16 *
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StrChr(IN const CHAR16 *s, IN const CHAR16 c)
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{
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for(; *s != c; ++s) if (*s == CHAR_NULL) return NULL;
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return (CHAR16 *)s;
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}
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CHAR16 *
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StrnCpy(OUT CHAR16 *dst, IN const CHAR16 *src, IN UINTN size)
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{
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CHAR16 *res = dst;
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while (size && size-- && (*dst++ = *src++) != CHAR_NULL);
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/*
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* does the null padding
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*/
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while (size && size-- > 0) *dst++ = CHAR_NULL;
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return res;
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}
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CHAR8 *
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StrnXCpy(OUT CHAR8 *dst, IN const CHAR16 *src, IN UINTN size)
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{
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CHAR8 *res = dst;
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while (size && size-- && (*dst++ = (CHAR8)*src++) != '\0');
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/*
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* does the null padding
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*/
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while (size && size-- > 0) *dst++ = '\0';
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return res;
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}
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VOID
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U2ascii(CHAR16 *in, CHAR8 *out, UINTN maxlen)
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{
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while(maxlen-- > 1 && (*out++ = *in++));
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*out = '\0';
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}
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CHAR8 *
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strncpya(OUT CHAR8 *dst, IN const CHAR8 *src, IN UINTN size)
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{
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CHAR8 *res = dst;
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while (size && size-- && (*dst++ = *src++) != '\0');
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/*
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* does the null padding
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*/
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while (size && size-- > 0) *dst++ = '\0';
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return res;
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}
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CHAR8 *
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strcpya(CHAR8 *dst, const CHAR8 *src)
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{
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CHAR8 *tmp = dst;
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while (*src) {
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*(dst++) = *(src++);
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}
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*dst = 0;
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return tmp;
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}
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CHAR8 *
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strchra(IN const CHAR8 *s, IN const CHAR8 c)
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{
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for(; *s != c; ++s)
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if (*s == 0) return NULL;
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return (CHAR8 *)s;
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}
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CHAR8 *
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strcata(IN CHAR8 *dst,IN CHAR8 *src)
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{
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return strcpya(dst+strlena(dst), src);
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}
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CHAR8 *
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strrchra(IN const CHAR8 *s, const INTN c)
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{
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CHAR8 *found, *p, ch = (CHAR8)c;
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/* Since strchr is fast, we use it rather than the obvious loop. */
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if (ch == '\0') return strchra(s, '\0');
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found = NULL;
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while ((p = strchra(s, ch)) != NULL)
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{
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found = p;
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s = p + 1;
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}
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return (CHAR8 *) found;
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}
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CHAR8 *
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strtok_simple(CHAR8 *in, CHAR8 c)
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{
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static CHAR8 *last;
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CHAR8 *tmp;
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if (in == NULL) in = last;
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if (in == NULL) return NULL;
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if (*in == c) in++;
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tmp = strchra(in, c);
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if (tmp) {
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*tmp = '\0';
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last = tmp+1;
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} else {
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last = NULL;
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}
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return in;
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}
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VOID
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ascii2U(CHAR8 *in, CHAR16 *out, UINTN maxlen)
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{
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while(maxlen-- > 1 && (*out++ = *in++));
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*out = (CHAR16)0;
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}
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