d100276457
Submitted by: Akira Ikeuchi <a_ikeuchi@mic.mitsumi.co.jp> Reviewed by: Watanabe Kazuhiro <CQG00620@nifty.ne.jp>
365 lines
8 KiB
Groff
365 lines
8 KiB
Groff
.\"-
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.\" Copyright (c) 2000 Poul Henning Kamp and Dag-Erling Coïdan Smørgrav
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.\" All rights reserved.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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.\" %FreeBSD: src/share/man/man9/sbuf.9,v 1.24 2004/07/09 11:44:49 des Exp %
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.\" $FreeBSD$
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.\"
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.Dd July 9, 2004
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.Dt SBUF 9
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.Os
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.Sh ̾¾Î
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.Nm sbuf_new ,
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.Nm sbuf_clear ,
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.Nm sbuf_setpos ,
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.Nm sbuf_bcat ,
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.Nm sbuf_bcopyin ,
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.Nm sbuf_bcpy ,
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.Nm sbuf_cat ,
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.Nm sbuf_copyin ,
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.Nm sbuf_cpy ,
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.Nm sbuf_printf ,
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.Nm sbuf_vprintf ,
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.Nm sbuf_putc ,
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.Nm sbuf_trim ,
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.Nm sbuf_overflowed ,
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.Nm sbuf_finish ,
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.Nm sbuf_data ,
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.Nm sbuf_len ,
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.Nm sbuf_done ,
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.Nm sbuf_delete
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.Nd °ÂÁ´¤Êʸ»úÎó¥Õ¥©¡¼¥Þ¥Ã¥È
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.Sh ½ñ¼°
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.In sys/types.h
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.In sys/sbuf.h
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.Ft struct sbuf *
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.Fn sbuf_new "struct sbuf *s" "char *buf" "int length" "int flags"
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.Ft void
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.Fn sbuf_clear "struct sbuf *s"
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.Ft int
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.Fn sbuf_setpos "struct sbuf *s" "int pos"
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.Ft int
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.Fn sbuf_bcat "struct sbuf *s" "const void *buf" "size_t len"
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.Ft int
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.Fn sbuf_bcopyin "struct sbuf *s" "const void *uaddr" "size_t len"
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.Ft int
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.Fn sbuf_bcpy "struct sbuf *s" "const void *buf" "size_t len"
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.Ft int
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.Fn sbuf_cat "struct sbuf *s" "const char *str"
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.Ft int
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.Fn sbuf_copyin "struct sbuf *s" "const void *uaddr" "size_t len"
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.Ft int
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.Fn sbuf_cpy "struct sbuf *s" "const char *str"
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.Ft int
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.Fn sbuf_printf "struct sbuf *s" "const char *fmt" "..."
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.Ft int
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.Fn sbuf_vprintf "struct sbuf *s" "const char *fmt" "va_list ap"
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.Ft int
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.Fn sbuf_putc "struct sbuf *s" "int c"
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.Ft int
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.Fn sbuf_trim "struct sbuf *s"
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.Ft int
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.Fn sbuf_overflowed "struct sbuf *s"
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.Ft void
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.Fn sbuf_finish "struct sbuf *s"
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.Ft char *
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.Fn sbuf_data "struct sbuf *s"
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.Ft int
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.Fn sbuf_len "struct sbuf *s"
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.Ft int
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.Fn sbuf_done "struct sbuf *s"
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.Ft void
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.Fn sbuf_delete "struct sbuf *s"
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.Sh ²òÀâ
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.Nm sbuf
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¥Õ¥¡¥ß¥ê¤Î´Ø¿ô¤Ï¡¢¥«¡¼¥Í¥ë¶õ´ÖÆâ¤Î¶³¦¤Î¤¢¤ë¥Ì¥ë½ªÃ¼Ê¸»úÎó¤Î¡¢
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°ÂÁ´¤Ê³ä¤êÅö¤Æ¡¢¹½ÃÛ¡¢¤ª¤è¤Ó²òÊü¤ò²Äǽ¤Ë¤·¤Þ¤¹¡£
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¤³¤ì¤é¤Î´Ø¿ô¤Ï¡¢Ê¸»ú¤ÎÇÛÎó¤ÎÂå¤ï¤ê¤Ë¡¢
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.In sys/sbuf.h
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¤ÇÄêµÁ¤µ¤ì¤ë
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.Fa sbuf
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¤È¸Æ¤Ð¤ì¤ë¹½Â¤ÂΤòÁàºî¤·¤Þ¤¹¡£
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.Pp
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.Fn sbuf_new
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´Ø¿ô¤ÏºÇ½é¤Î°ú¿ô¤Ç»Ø¤µ¤ì¤ë
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.Fa sbuf
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¤ò½é´ü²½¤·¤Þ¤¹¡£
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¤½¤Î¥Ý¥¤¥ó¥¿¤¬
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.Dv NULL
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¤Î¾ì¹ç¤Ë¤Ï¡¢
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.Fn sbuf_new
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¤Ï
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.Vt struct sbuf
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¹½Â¤ÂΤò
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.Xr malloc 9
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¤ò»ÈÍѤ·¤Æ³ä¤êÅö¤Æ¤Þ¤¹¡£
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.Fa buf
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°ú¿ô¤Ï¼ÂºÝ¤Ëʸ»úÎ󤬳ÊǼ¤µ¤ì¤ë¥Ð¥Ã¥Õ¥¡¤Ø¤Î¥Ý¥¤¥ó¥¿¤Ç¡¢
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.Dv NULL
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¤Î¾ì¹ç¤Ë¤Ï¡¢
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.Fn sbuf_new
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¤Ï
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.Xr malloc 9
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¤ò»ÈÍѤ·¤Æ¥Ð¥Ã¥Õ¥¡¤ò³ä¤êÅö¤Æ¤Þ¤¹¡£
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.Fa length
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¤Ï³ÊǼ¥Ð¥Ã¥Õ¥¡¤Î½é´ü¤ÎÂ礤µ¤Ç¤¹¡£
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4 ÈÖÌܤΰú¿ô
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.Fa flags
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¤Ï°Ê²¼¤Î¥Õ¥é¥°¤«¤é¹½À®¤µ¤ìÆÀ¤Þ¤¹:
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.Bl -tag -width ".Dv SBUF_AUTOEXTEND"
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.It Dv SBUF_FIXEDLEN
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³ÊǼ¥Ð¥Ã¥Õ¥¡¤Ï½é´ü¥µ¥¤¥º¤Ç¸ÇÄê¤Ç¤¹¡£
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¤³¤ì¤ò±Û¤¨¤Æ sbuf ¤ò³ÈÄ¥¤·¤è¤¦¤È¤¹¤ë¤È¡¢¥ª¡¼¥Ð¥Õ¥í¡¼¾õÂ֤Ȥʤê¤Þ¤¹¡£
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.It Dv SBUF_AUTOEXTEND
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¤³¤ì¤Ï¡¢Äɲåǡ¼¥¿¤Î³ÊǼ¤Î¤¿¤á¤ËɬÍפʤé¤Ð¡¢
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»ñ¸»¤Îµö¤¹¸Â¤ê¤Ë¤ª¤¤¤Æ¡¢³ÊǼ¥Ð¥Ã¥Õ¥¡¤Ï³ÈÄ¥²Äǽ¤Ç¤¢¤ë¤³¤È¤ò¼¨¤·¤Þ¤¹¡£
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.El
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.Pp
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.Fa buf
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¤¬
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.Dv NULL
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¤Ç¤Ê¤¤¾ì¹ç¤Ë¤Ï¡¢¾¯¤Ê¤¯¤È¤â
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.Fa length
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ʸ»ú°Ê¾å¤ÎÇÛÎó¤ò»Ø¤µ¤Ê¤±¤ì¤Ð¤Ê¤é¤Ê¤¤¤³¤È¤ËÃí°Õ¤·¤Æ¤¯¤À¤µ¤¤¡£
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sbuf ¤Ë¤è¤Ã¤Æ»ÈÍѤµ¤ì¤Æ¤¤¤ë´Ö¤ËľÀܤ½¤ÎÇÛÎó¤Ë¥¢¥¯¥»¥¹¤¹¤ë¤³¤È¤Î·ë²Ì¤Ï
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̤ÄêµÁ¤Ç¤¹¡£
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.Pp
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.Fn sbuf_delete
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´Ø¿ô¤Ï
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.Fa sbuf
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¤ò¥¯¥ê¥¢¤·¤Æ¡¢¤½¤Î¤¿¤á¤Ë³ä¤êÅö¤Æ¤é¤ì¤¿Á´¤Æ¤Î¥á¥â¥ê¤ò³«Êü¤·¤Þ¤¹¡£
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Á´¤Æ¤Î
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.Fn sbuf_new
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¤Ø¤Î¸Æ¤Ó½Ð¤·¤Î¤¿¤á¤Î
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.Fn sbuf_delete
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¤Î¸Æ¤Ó½Ð¤·¤¬¤Ê¤±¤ì¤Ð¤Ê¤ê¤Þ¤»¤ó¡£
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ºï½ü¤µ¤ì¤¿¸å¤Î sbuf ¤Ø¤ÎÁ´¤Æ¤Î¥¢¥¯¥»¥¹¤Î»î¤ß¤Ï¼ºÇÔ¤·¤Þ¤¹¡£
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.Pp
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.Fn sbuf_clear
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´Ø¿ô¤Ï
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.Fa sbuf
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¤ÎÆâÍƤò̵¸ú¤Ë¤·¡¢°ÌÃÖ¤ò 0 ¤Ë¥ê¥»¥Ã¥È¤·¤Þ¤¹¡£
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.Pp
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.Fn sbuf_setpos
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´Ø¿ô¤Ï
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.Fa sbuf
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¤Î½ªÎ»°ÌÃÖ¤ò¡¢0 ¤È³ÊǼ¥Ð¥Ã¥Õ¥¡¤ÎÂ礤µ¤è¤ê¤â 1 ¾®¤µ¤¤Ãͤδ֤ÎÃͤǤ¢¤ë
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.Fa pos
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¤ËÀßÄꤷ¤Þ¤¹¡£
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·ë²Ì¤È¤·¤Æ¡¢¿·¤·¤¤°ÌÃ֤ˤª¤¤¤Æ sbuf ¤ÎÀèü¤òÀÚ¤ê¼Î¤Æ¤ë¤³¤È¤Ë¤Ê¤ê¤Þ¤¹¡£
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.Pp
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.Fn sbuf_bcat
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´Ø¿ô¤Ï¥Ð¥Ã¥Õ¥¡
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.Fa buf
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¤ÎºÇ½é¤Î
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.Fa len
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¥Ð¥¤¥È¤ò
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.Fa sbuf
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¤ËÄɲä·¤Þ¤¹¡£
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.Pp
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.Fn sbuf_bcopyin
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´Ø¿ô¤ÏÌÀ¼¨¤µ¤ì¤¿¥æ¡¼¥¶¶õ´Ö¥¢¥É¥ì¥¹¤«¤é
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.Fa sbuf
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¤Ë
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.Fa len
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¥Ð¥¤¥È¤ò¥³¥Ô¡¼¤·¤Þ¤¹¡£
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.Pp
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.Fn sbuf_bcpy
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´Ø¿ô¤Ï
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.Fa sbuf
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¤ÎÆâÍƤò¥Ð¥Ã¥Õ¥¡
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.Fa buf
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¤ÎºÇ½é¤Î
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.Fa len
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¥Ð¥¤¥È¤ÇÃÖ¤´¹¤¨¤Þ¤¹¡£
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.Pp
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.Fn sbuf_cat
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´Ø¿ô¤Ï NUL ʸ»ú¤Ç½ªÃ¼¤µ¤ì¤¿Ê¸»úÎó
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.Fa str
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¤ò
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.Fa sbuf
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¤Î¸½ºß°ÌÃÖ¤ËÄɲä·¤Þ¤¹¡£
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.Pp
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.Fn sbuf_copyin
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´Ø¿ô¤Ï NUL ʸ»ú¤Ç½ªÃ¼¤µ¤ì¤¿Ê¸»úÎó¤òÌÀ¼¨¤µ¤ì¤¿¥æ¡¼¥¶¶õ´Ö¥¢¥É¥ì¥¹¤«¤é
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.Fa sbuf
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¤Ë¥³¥Ô¡¼¤·¤Þ¤¹¡£
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.Fa len
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°ú¿ô¤¬ 0 ¤Ç¤Ê¤¤¾ì¹ç¤Ë¤Ï
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.Fa len
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ʸ»ú¤ò±Û¤¨¤Ê¤¤Ê¸»ú (½ªÃ¼¤Î NUL ¤Ï¿ô¤¨¤Þ¤»¤ó) ¤¬¥³¥Ô¡¼¤µ¤ì¡¢
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¤½¤¦¤Ç¤Ê¤¤¾ì¹ç¤Ë¤Ïʸ»úÎóÁ´ÂΡ¢¤Þ¤¿¤Ï
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.Fa sbuf
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¤ËµÍ¤á¹þ¤à¤³¤È¤¬½ÐÍè¤ë¤À¤±¤Îʸ»ú¤ò¥³¥Ô¡¼¤·¤Þ¤¹¡£
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.Pp
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.Fn sbuf_cpy
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´Ø¿ô¤Ï
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.Fa sbuf
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¤ÎÆâÍƤò NUL ʸ»ú¤Ç½ªÃ¼¤µ¤ì¤¿Ê¸»úÎó
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.Fa str
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¤ÇÃÖ¤´¹¤¨¤Þ¤¹¡£
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¤³¤ì¤Ï¿·¤·¤¤
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.Fa sbuf
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¤Ç¡¢¤Þ¤¿¤Ï
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.Fn sbuf_clear
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¤«
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.Fn sbuf_setpos
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¤Ç¤½¤Î°ÌÃÖ¤ò 0 ¤Ë¥ê¥»¥Ã¥È¤µ¤ì¤Æ¤¤¤ë
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.Fa sbuf
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¤Ç¡¢
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.Fn sbuf_cat
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¤ò¸Æ¤Ó½Ð¤¹¤³¤È¤ÈÅù²Á¤Ç¤¹¡£
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.Pp
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.Fn sbuf_printf
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´Ø¿ô¤Ï
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.Fa fmt
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¤Ë¤è¤Ã¤Æ»Ø¤µ¤ì¤Æ¤¤¤ë¥Õ¥©¡¼¥Þ¥Ã¥Èʸ»úÎó¤Ë½¾¤Ã¤Æ¤½¤Î°ú¿ô¤ò¥Õ¥©¡¼¥Þ¥Ã¥È¤·¡¢
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¤½¤Î·ë²Ì¤Îʸ»úÎó¤ò
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.Fa sbuf
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¤Î¸½ºß°ÌÃÖ¤ËÄɲä·¤Þ¤¹¡£
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.Pp
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.Fn sbuf_vprintf
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´Ø¿ô¤Ï
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.Fn sbuf_printf
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¤ÈƱÍͤ˿¶Éñ¤¤¤Þ¤¹¤¬¡¢°ú¿ô¤¬²ÄÊÑĹ°ú¿ô¥ê¥¹¥È
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.Fa ap
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¤«¤é¼èÆÀ¤µ¤ì¤ë¤³¤È¤¬°ã¤¤¤Þ¤¹¡£
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.Pp
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.Fn sbuf_putc
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´Ø¿ô¤Ïʸ»ú
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.Fa c
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¤ò
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.Fa sbuf
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¤Î¸½ºß°ÌÃÖ¤ËÄɲä·¤Þ¤¹¡£
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.Pp
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.Fn sbuf_trim
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´Ø¿ô¤ÏËöÈø¤Î¶õÇò¤ò
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.Fa sbuf
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¤«¤é½üµî¤·¤Þ¤¹¡£
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.Pp
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.Fn sbuf_overflowed
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´Ø¿ô¤Ï
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.Fa sbuf
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¤¬¥ª¡¼¥Ð¥Õ¥í¡¼¤·¤Æ¤¤¤ë¾ì¹ç¤Ë 0 °Ê³°¤ÎÃͤòÊÖ¤·¤Þ¤¹¡£
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.Pp
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.Fn sbuf_finish
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´Ø¿ô¤Ï
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.Fa sbuf
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¤ò¥Ì¥ë¤Ç½ªÃ¼¤·¡¢¤³¤ì°Ê¾å
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.Fn sbuf_setpos ,
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.Fn sbuf_cat ,
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.Fn sbuf_cpy ,
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.Fn sbuf_printf
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¤Þ¤¿¤Ï
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.Fn sbuf_putc
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¤ò»ÈÍѤ·¤Æ½¤Àµ¤µ¤ì¤ë¤³¤È¤¬Ìµ¤¤¤³¤È¤ò°ÕÌ£¤¹¤ë´°Î»¥Þ¡¼¥¯¤òÉÕ¤±¤Þ¤¹¡£
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.Pp
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.Fn sbuf_data
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¤ª¤è¤Ó
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.Fn sbuf_len
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´Ø¿ô¤Ï¤½¤ì¤¾¤ì¸½ºß¤Îʸ»úÎó¤È¤½¤ÎŤµ¤òÊÖ¤·¤Þ¤¹¡£
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.Fn sbuf_data
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¤Ï´°Î»¤·¤¿
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.Fa sbuf
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¤ËÂФ·¤Æ¤Î¤ßµ¡Ç½¤·¤Þ¤¹¡£
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.Fn sbuf_done
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¤Ï¤½¤Î sbuf ¤¬½ªÎ»¤·¤¿¾ì¹ç¤Ë¤Ï¡¢0 ¤Ç¤Ê¤¤ÃͤòÊÖ¤·¤Þ¤¹¡£
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.Sh Ãí
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¤¢¤ëÁàºî¤¬
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.Fa sbuf
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¤ò¥ª¡¼¥Ð¥Õ¥í¡¼¤µ¤»¤¿¾ì¹ç¤Ë¤Ï¡¢¤½¤Î
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.Fa sbuf
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¤¬
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.Fn sbuf_finish
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¤ò»ÈÍѤ·¤Æ´°Î»¤µ¤»¤é¤ì¤ë¡¢¤Þ¤¿¤Ï
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.Fn sbuf_clear
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¤ò»ÈÍѤ·¤Æ¥ê¥»¥Ã¥È¤µ¤ì¤ë¡¢¤Þ¤¿¤Ï
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.Fn sbuf_setpos
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¤ò»ÈÍѤ·¤Æ¤½¤Î°ÌÃÖ¤ò 0 ¤«¤é³ÊǼ¥Ð¥Ã¥Õ¥¡¤ÎÂ礤µ¤è¤ê 1 ¾®¤µ¤¤ÃͤޤǤÎÃͤË
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¥ê¥»¥Ã¥È¤µ¤ì¤ë¡¢¤Þ¤¿¤Ï
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.Fn sbuf_cpy
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¤ò»ÈÍѤ·¤Æ½½Ê¬¤Ëû¤¤Ê¸»úÎó¤Ë½é´ü²½¤µ¤ì¤ë¤Þ¤Ç¤Î´Ö¤Ï¡¢¸å¤Ë³¤¯¤Û¤È¤ó¤É¤Î¤½¤Î
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.Fa sbuf
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¤ËÂФ¹¤ëÁàºî¤Ï¼ºÇÔ¤¹¤ë¤Ç¤·¤ç¤¦¡£
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.Sh Ìá¤êÃÍ
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.Fn sbuf_new
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¤Ï³ÊǼ¥Ð¥Ã¥Õ¥¡¤Î³ä¤êÅö¤Æ¤Ë¼ºÇÔ¤·¤¿¾ì¹ç¤Ë¤Ï
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.Dv NULL
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¤òÊÖ¤·¡¢¤½¤¦¤Ç¤Ê¤¤¾ì¹ç¤Ë¤Ï¿·¤·¤¤
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.Fa sbuf
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¤Ø¤Î¥Ý¥¤¥ó¥¿¤òÊÖ¤·¤Þ¤¹¡£
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.Pp
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.Fn sbuf_setpos
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¤Ï
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.Fa pos
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¤¬ÉÔÀµ¤Ê¾ì¹ç¤Ë¤Ï \-1 ¤òÊÖ¤·¡¢¤½¤¦¤Ç¤Ê¤¤¾ì¹ç¤Ë¤Ï 0 ¤òÊÖ¤·¤Þ¤¹¡£
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.Pp
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.Fn sbuf_cat ,
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.Fn sbuf_cpy ,
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.Fn sbuf_printf ,
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.Fn sbuf_putc ,
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.Fn sbuf_trim
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¤ÏÁ´¤Æ¥Ð¥Ã¥Õ¥¡¤¬¥ª¡¼¥Ð¥Õ¥í¡¼¤·¤¿¾ì¹ç¤Ë¤Ï \-1 ¤òÊÖ¤·¡¢
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¤½¤¦¤Ç¤Ê¤¤¾ì¹ç¤Ë¤Ï 0 ¤òÊÖ¤·¤Þ¤¹¡£
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.Pp
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.Fn sbuf_overflowed
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¤Ï¥Ð¥Ã¥Õ¥¡¤¬¥ª¡¼¥Ð¥Õ¥í¡¼¤·¤Æ¤¤¤ë¾ì¹ç¤Ë¤Ï 0 °Ê³°¤ËÃͤòÊÖ¤·¡¢
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¤½¤¦¤Ç¤Ê¤¤¾ì¹ç¤Ë¤Ï 0 ¤òÊÖ¤·¤Þ¤¹¡£
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.Pp
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.Fn sbuf_data
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¤ª¤è¤Ó
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.Fn sbuf_len
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¤Ï¥Ð¥Ã¥Õ¥¡¤¬¥ª¡¼¥Ð¥Õ¥í¡¼¤·¤Æ¤¤¤ë¾ì¹ç¤Ë¤Ï¡¢¤½¤ì¤¾¤ì
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.Dv NULL
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¤ª¤è¤Ó \-1 ¤òÊÖ¤·¤Þ¤¹¡£
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.Sh ´ØÏ¢¹àÌÜ
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.Xr printf 3 ,
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.Xr strcat 3 ,
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.Xr strcpy 3 ,
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.Xr copyin 9 ,
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.Xr copyinstr 9 ,
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.Xr printf 9
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.Sh Îò»Ë
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.Nm sbuf
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¥Õ¥¡¥ß¥ê¤Î´Ø¿ô¤Ï
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.Fx 4.4
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¤Ç¤Ï¤¸¤á¤ÆÅо줷¤Þ¤·¤¿¡£
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.Sh ºî¼Ô
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.An -nosplit
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.Nm sbuf
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¥Õ¥¡¥ß¥ê¤Î´Ø¿ô¤Ï
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.An Poul-Henning Kamp Aq phk@FreeBSD.org
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