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65 lines
1.9 KiB
65 lines
1.9 KiB
4 months ago
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.TH IPQ_ERRSTR 3 "16 October 2001" "Linux iptables 1.2" "Linux Programmer's Manual"
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.\"
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.\" Copyright (c) 2000 Netfilter Core Team
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.\"
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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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.\"
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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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.\"
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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., 675 Mass Ave, Cambridge, MA 02139, USA.
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.\"
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.\"
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.SH NAME
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ipq_errstr, ipq_perror \(em libipq error handling routines
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.SH SYNOPSIS
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.B #include <linux/netfilter.h>
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.br
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.B #include <libipq.h>
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.sp
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.BI "char *ipq_errstr(" void );
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.br
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.BI "void ipq_perror(const char *" s );
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.SH DESCRIPTION
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The
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.B ipq_errstr
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function returns a descriptive error message based on the current
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value of the internal
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.B ipq_errno
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variable. All libipq API functions set this internal variable
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upon failure.
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.PP
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The
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.B ipq_perror
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function prints an error message to stderr corresponding to the
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current value of the internal
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.B ipq_error
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variable, and the global
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.B errno
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variable (if set). The error message is prefixed with the string
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.I s
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as supplied by the application. If
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.I s
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is NULL, the error message is prefixed with the string "ERROR".
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.SH RETURN VALUE
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.B ipq_errstr
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returns an error message as outlined above.
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.SH BUGS
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None known.
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.SH AUTHOR
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James Morris <jmorris@intercode.com.au>
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.SH COPYRIGHT
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Copyright (c) 2000-2001 Netfilter Core Team.
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.PP
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Distributed under the GNU General Public License.
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.SH SEE ALSO
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.BR iptables (8),
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.BR libipq (3).
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