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64 lines
2.1 KiB
C
64 lines
2.1 KiB
C
/* Copyright (C) 2000 MySQL AB
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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 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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This program 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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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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/* File : strxnmov.c
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Author : Richard A. O'Keefe.
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Updated: 2 June 1984
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Defines: strxnmov()
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strxnmov(dst, len, src1, ..., srcn, NullS)
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moves the first len characters of the concatenation of src1,...,srcn
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to dst. If there aren't that many characters, a NUL character will
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be added to the end of dst to terminate it properly. This gives the
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same effect as calling strxcpy(buff, src1, ..., srcn, NullS) with a
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large enough buffer, and then calling strnmov(dst, buff, len).
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It is just like strnmov except that it concatenates multiple sources.
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Beware: the last argument should be the null character pointer.
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Take VERY great care not to omit it! Also be careful to use NullS
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and NOT to use 0, as on some machines 0 is not the same size as a
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character pointer, or not the same bit pattern as NullS.
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Note: strxnmov is like strnmov in that it moves up to len
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characters; dst will be padded on the right with one NUL characters if
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needed.
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*/
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#include <my_global.h>
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#include "m_string.h"
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#include <stdarg.h>
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char *strxnmov(char *dst,uint len, const char *src, ...)
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{
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va_list pvar;
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char *end_of_dst=dst+len;
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va_start(pvar,src);
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while (src != NullS)
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{
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do
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{
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if (dst == end_of_dst)
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goto end;
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}
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while ((*dst++ = *src++));
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dst--;
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src = va_arg(pvar, char *);
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}
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*dst=0;
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end:
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va_end(pvar);
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return dst;
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}
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