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.\" $OpenBSD: err.3,v 1.2 1996/08/19 08:22:28 tholo Exp $
.\"
.\" Copyright (c) 1993
.\" The Regents of the University of California. All rights reserved.
.\"
.\" Redistribution and use in source and binary forms, with or without
.\" modification, are permitted provided that the following conditions
.\" are met:
.\" 1. Redistributions of source code must retain the above copyright
.\" notice, this list of conditions and the following disclaimer.
.\" 2. Redistributions in binary form must reproduce the above copyright
.\" notice, this list of conditions and the following disclaimer in the
.\" documentation and/or other materials provided with the distribution.
.\" 3. All advertising materials mentioning features or use of this software
.\" must display the following acknowledgement:
.\" This product includes software developed by the University of
.\" California, Berkeley and its contributors.
.\" 4. Neither the name of the University nor the names of its contributors
.\" may be used to endorse or promote products derived from this software
.\" without specific prior written permission.
.\"
.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
.\" SUCH DAMAGE.
.\"
.\" Japanese Version Copyright (c) 2000 Yuichi SATO
.\" all rights reserved.
.\" Translated Thu Dec 14 18:22:51 JST 2000
.\" by Yuichi SATO <sato@complex.eng.hokudai.ac.jp>
.\"
.Dd June 9, 1993
.Dt ERR 3
.Os "Linux NetKit (0.17)"
.Sh ̾
.Nm err ,
.Nm verr ,
.Nm errx ,
.Nm verrx ,
.Nm warn ,
.Nm vwarn ,
.Nm warnx ,
.Nm vwarnx
.Nd 顼åեޥåȤˤ
.Sh
.Fd #include <err.h>
.Ft void
.Fn err "int eval" "const char *fmt" "..."
.Ft void
.Fn verr "int eval" "const char *fmt" "va_list args"
.Ft void
.Fn errx "int eval" "const char *fmt" "..."
.Ft void
.Fn verrx "int eval" "const char *fmt" "va_list args"
.Ft void
.Fn warn "const char *fmt" "..."
.Ft void
.Fn vwarn "const char *fmt" "va_list args"
.Ft void
.Fn warnx "const char *fmt" "..."
.Ft void
.Fn vwarnx "const char *fmt" "va_list args"
.Sh
.Fn err
.Fn warn
ȤäϢδؿϡեޥåȤ줿顼å
ɸ२顼ɽ롣
Ƥδؿϡץ̾ǥ쥯ȥʬä̾ˡ
ȥڡ³ΤϤ롣
.Va fmt
NULL Ǥʤ硢եޥåȤ줿顼å
ڡϤ롣
.Fn err ,
.Fn verr ,
.Fn warn ,
.Fn vwarn
ؿξ硢ѿ
.Va errno
θߤͤб顼åʸϤ롣
ƤδؿǡϤθˤϲʸդ
.Pp
.Fn err ,
.Fn verr ,
.Fn errx ,
.Fn verrx
ؿϥ
.Fa eval
ͤǽλ롣
.Sh
ߤΥ顼ֹ (errno) ʸɽƽλ:
.Bd -literal -offset indent
if ((p = malloc(size)) == NULL)
err(1, NULL);
if ((fd = open(file_name, O_RDONLY, 0)) == -1)
err(1, "%s", file_name);
.Ed
.Pp
顼åɽƽλ:
.Bd -literal -offset indent
if (tm.tm_hour < START_TIME)
errx(1, "too early, wait until %s", start_time_string);
.Ed
.Pp
顼ηٹФ:
.Bd -literal -offset indent
if ((fd = open(raw_device, O_RDONLY, 0)) == -1)
warnx("%s: %s: trying the block device",
raw_device, strerror(errno));
if ((fd = open(block_device, O_RDONLY, 0)) == -1)
err(1, "%s", block_device);
.Ed
.Sh Ϣ
.Xr strerror 3
.Sh
.Fn err
.Fn warn
ؿ
.Bx 4.4
ǽо줷
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