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64 lines
1.6 KiB
C
64 lines
1.6 KiB
C
/* strgutil.c - miscellaneous utilities
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* Copyright (c) 1997 by Werner Koch (dd9jn)
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*
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* This file is part of G10.
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*
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* G10 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 of the License, or
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* (at your option) any later version.
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*
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* G10 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 this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
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*/
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#include <config.h>
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#include <stdlib.h>
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#include <ctype.h>
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#include "types.h"
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#include "util.h"
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#include "memory.h"
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void
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free_strlist( STRLIST sl )
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{
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STRLIST sl2;
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for(; sl; sl = sl2 ) {
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sl2 = sl->next;
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m_free(sl);
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}
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}
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/****************
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* look for the substring SUB in buffer and return a pointer to that
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* substring in BUF or NULL if not found.
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* Comparison is case-in-sensitive.
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*/
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char *
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memistr( char *buf, size_t buflen, const char *sub )
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{
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const byte *t, *s ;
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size_t n;
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for( t=buf, n=buflen, s=sub ; n ; t++, n-- )
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if( toupper(*t) == toupper(*s) ) {
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for( buf=(char*)t++, buflen = n--, s++;
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n && toupper(*t) == toupper(*s); t++, s++, n-- )
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;
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if( !*s )
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return buf;
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t = buf; n = buflen; s = sub ;
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}
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return NULL ;
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}
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