Add support for include /etc/syslog.d/*.conf in /etc/syslog.conf
- Massive refactor of the .conf file parsing - Add queue.h v1.43 from OpenBSD, has _SAFE versions unlike GLIBC queue.h - Use queue.h list macros instead of homegrown linked list - Adopt NetBSD reconf style; on failure to reload keep old config Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
This commit is contained in:
Joachim Nilsson
parent
ddaa0a1a82
commit
917ef4ed1d
@ -24,7 +24,7 @@ lib_LTLIBRARIES = libsyslog.la
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AM_CFLAGS = -W -Wall -Wextra
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AM_CFLAGS += -Wno-unused-result -Wno-unused-parameter -fno-strict-aliasing
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syslogd_SOURCES = syslogd.c syslog.h pidfile.c pidfile.h
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syslogd_SOURCES = syslogd.c syslog.h pidfile.c pidfile.h queue.h
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syslogd_CPPFLAGS = -D_XOPEN_SOURCE=600 -D_BSD_SOURCE -D_DEFAULT_SOURCE
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syslogd_LDADD = $(LIBS) $(LIBOBJS)
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542
src/queue.h
Normal file
542
src/queue.h
Normal file
@ -0,0 +1,542 @@
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/* $OpenBSD: queue.h,v 1.43 2015/12/28 19:38:40 millert Exp $ */
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/* $NetBSD: queue.h,v 1.11 1996/05/16 05:17:14 mycroft Exp $ */
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/*
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* Copyright (c) 1991, 1993
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* The Regents of the University of California. 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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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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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* @(#)queue.h 8.5 (Berkeley) 8/20/94
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*/
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#ifdef __cplusplus
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extern "C"
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{
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#endif
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#ifndef _SYS_QUEUE_H_
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#define _SYS_QUEUE_H_
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/*
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* This file defines five types of data structures: singly-linked lists,
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* lists, simple queues, tail queues and XOR simple queues.
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*
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*
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* A singly-linked list is headed by a single forward pointer. The elements
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* are singly linked for minimum space and pointer manipulation overhead at
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* the expense of O(n) removal for arbitrary elements. New elements can be
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* added to the list after an existing element or at the head of the list.
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* Elements being removed from the head of the list should use the explicit
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* macro for this purpose for optimum efficiency. A singly-linked list may
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* only be traversed in the forward direction. Singly-linked lists are ideal
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* for applications with large datasets and few or no removals or for
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* implementing a LIFO queue.
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*
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* A list is headed by a single forward pointer (or an array of forward
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* pointers for a hash table header). The elements are doubly linked
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* so that an arbitrary element can be removed without a need to
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* traverse the list. New elements can be added to the list before
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* or after an existing element or at the head of the list. A list
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* may only be traversed in the forward direction.
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*
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* A simple queue is headed by a pair of pointers, one to the head of the
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* list and the other to the tail of the list. The elements are singly
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* linked to save space, so elements can only be removed from the
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* head of the list. New elements can be added to the list before or after
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* an existing element, at the head of the list, or at the end of the
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* list. A simple queue may only be traversed in the forward direction.
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*
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* A tail queue is headed by a pair of pointers, one to the head of the
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* list and the other to the tail of the list. The elements are doubly
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* linked so that an arbitrary element can be removed without a need to
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* traverse the list. New elements can be added to the list before or
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* after an existing element, at the head of the list, or at the end of
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* the list. A tail queue may be traversed in either direction.
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*
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* An XOR simple queue is used in the same way as a regular simple queue.
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* The difference is that the head structure also includes a "cookie" that
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* is XOR'd with the queue pointer (first, last or next) to generate the
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* real pointer value.
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*
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* For details on the use of these macros, see the queue(3) manual page.
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*/
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#if defined(QUEUE_MACRO_DEBUG) || (defined(_KERNEL) && defined(DIAGNOSTIC))
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#define _Q_INVALIDATE(a) (a) = ((void *)-1)
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#else
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#define _Q_INVALIDATE(a)
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#endif
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/*
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* Singly-linked List definitions.
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*/
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#define SLIST_HEAD(name, type) \
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struct name { \
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struct type *slh_first; /* first element */ \
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}
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#define SLIST_HEAD_INITIALIZER(head) \
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{ NULL }
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#define SLIST_ENTRY(type) \
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struct { \
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struct type *sle_next; /* next element */ \
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}
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/*
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* Singly-linked List access methods.
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*/
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#define SLIST_FIRST(head) ((head)->slh_first)
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#define SLIST_END(head) NULL
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#define SLIST_EMPTY(head) (SLIST_FIRST(head) == SLIST_END(head))
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#define SLIST_NEXT(elm, field) ((elm)->field.sle_next)
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#define SLIST_FOREACH(var, head, field) \
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for((var) = SLIST_FIRST(head); \
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(var) != SLIST_END(head); \
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(var) = SLIST_NEXT(var, field))
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#define SLIST_FOREACH_SAFE(var, head, field, tvar) \
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for ((var) = SLIST_FIRST(head); \
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(var) && ((tvar) = SLIST_NEXT(var, field), 1); \
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(var) = (tvar))
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/*
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* Singly-linked List functions.
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*/
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#define SLIST_INIT(head) { \
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SLIST_FIRST(head) = SLIST_END(head); \
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}
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#define SLIST_INSERT_AFTER(slistelm, elm, field) do { \
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(elm)->field.sle_next = (slistelm)->field.sle_next; \
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(slistelm)->field.sle_next = (elm); \
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} while (0)
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#define SLIST_INSERT_HEAD(head, elm, field) do { \
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(elm)->field.sle_next = (head)->slh_first; \
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(head)->slh_first = (elm); \
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} while (0)
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#define SLIST_REMOVE_AFTER(elm, field) do { \
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(elm)->field.sle_next = (elm)->field.sle_next->field.sle_next; \
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} while (0)
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#define SLIST_REMOVE_HEAD(head, field) do { \
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(head)->slh_first = (head)->slh_first->field.sle_next; \
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} while (0)
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#define SLIST_REMOVE(head, elm, type, field) do { \
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if ((head)->slh_first == (elm)) { \
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SLIST_REMOVE_HEAD((head), field); \
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} else { \
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struct type *curelm = (head)->slh_first; \
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\
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while (curelm->field.sle_next != (elm)) \
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curelm = curelm->field.sle_next; \
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curelm->field.sle_next = \
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curelm->field.sle_next->field.sle_next; \
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} \
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_Q_INVALIDATE((elm)->field.sle_next); \
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} while (0)
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/*
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* List definitions.
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*/
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#define LIST_HEAD(name, type) \
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struct name { \
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struct type *lh_first; /* first element */ \
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}
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#define LIST_HEAD_INITIALIZER(head) \
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{ NULL }
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#define LIST_ENTRY(type) \
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struct { \
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struct type *le_next; /* next element */ \
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struct type **le_prev; /* address of previous next element */ \
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}
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/*
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* List access methods.
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*/
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#define LIST_FIRST(head) ((head)->lh_first)
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#define LIST_END(head) NULL
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#define LIST_EMPTY(head) (LIST_FIRST(head) == LIST_END(head))
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#define LIST_NEXT(elm, field) ((elm)->field.le_next)
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#define LIST_FOREACH(var, head, field) \
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for((var) = LIST_FIRST(head); \
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(var)!= LIST_END(head); \
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(var) = LIST_NEXT(var, field))
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#define LIST_FOREACH_SAFE(var, head, field, tvar) \
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for ((var) = LIST_FIRST(head); \
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(var) && ((tvar) = LIST_NEXT(var, field), 1); \
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(var) = (tvar))
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/*
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* List functions.
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*/
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#define LIST_INIT(head) do { \
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LIST_FIRST(head) = LIST_END(head); \
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} while (0)
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#define LIST_INSERT_AFTER(listelm, elm, field) do { \
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if (((elm)->field.le_next = (listelm)->field.le_next) != NULL) \
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(listelm)->field.le_next->field.le_prev = \
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&(elm)->field.le_next; \
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(listelm)->field.le_next = (elm); \
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(elm)->field.le_prev = &(listelm)->field.le_next; \
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} while (0)
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#define LIST_INSERT_BEFORE(listelm, elm, field) do { \
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(elm)->field.le_prev = (listelm)->field.le_prev; \
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(elm)->field.le_next = (listelm); \
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*(listelm)->field.le_prev = (elm); \
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(listelm)->field.le_prev = &(elm)->field.le_next; \
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} while (0)
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#define LIST_INSERT_HEAD(head, elm, field) do { \
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if (((elm)->field.le_next = (head)->lh_first) != NULL) \
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(head)->lh_first->field.le_prev = &(elm)->field.le_next;\
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(head)->lh_first = (elm); \
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(elm)->field.le_prev = &(head)->lh_first; \
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} while (0)
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#define LIST_REMOVE(elm, field) do { \
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if ((elm)->field.le_next != NULL) \
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(elm)->field.le_next->field.le_prev = \
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(elm)->field.le_prev; \
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*(elm)->field.le_prev = (elm)->field.le_next; \
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_Q_INVALIDATE((elm)->field.le_prev); \
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_Q_INVALIDATE((elm)->field.le_next); \
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} while (0)
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#define LIST_REPLACE(elm, elm2, field) do { \
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if (((elm2)->field.le_next = (elm)->field.le_next) != NULL) \
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(elm2)->field.le_next->field.le_prev = \
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&(elm2)->field.le_next; \
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(elm2)->field.le_prev = (elm)->field.le_prev; \
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*(elm2)->field.le_prev = (elm2); \
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_Q_INVALIDATE((elm)->field.le_prev); \
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_Q_INVALIDATE((elm)->field.le_next); \
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} while (0)
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/*
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* Simple queue definitions.
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*/
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#define SIMPLEQ_HEAD(name, type) \
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struct name { \
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struct type *sqh_first; /* first element */ \
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struct type **sqh_last; /* addr of last next element */ \
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}
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#define SIMPLEQ_HEAD_INITIALIZER(head) \
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{ NULL, &(head).sqh_first }
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#define SIMPLEQ_ENTRY(type) \
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struct { \
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struct type *sqe_next; /* next element */ \
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}
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/*
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* Simple queue access methods.
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*/
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#define SIMPLEQ_FIRST(head) ((head)->sqh_first)
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#define SIMPLEQ_END(head) NULL
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#define SIMPLEQ_EMPTY(head) (SIMPLEQ_FIRST(head) == SIMPLEQ_END(head))
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#define SIMPLEQ_NEXT(elm, field) ((elm)->field.sqe_next)
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#define SIMPLEQ_FOREACH(var, head, field) \
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for((var) = SIMPLEQ_FIRST(head); \
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(var) != SIMPLEQ_END(head); \
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(var) = SIMPLEQ_NEXT(var, field))
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#define SIMPLEQ_FOREACH_SAFE(var, head, field, tvar) \
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for ((var) = SIMPLEQ_FIRST(head); \
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(var) && ((tvar) = SIMPLEQ_NEXT(var, field), 1); \
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(var) = (tvar))
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/*
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* Simple queue functions.
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*/
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#define SIMPLEQ_INIT(head) do { \
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(head)->sqh_first = NULL; \
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(head)->sqh_last = &(head)->sqh_first; \
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} while (0)
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#define SIMPLEQ_INSERT_HEAD(head, elm, field) do { \
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if (((elm)->field.sqe_next = (head)->sqh_first) == NULL) \
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(head)->sqh_last = &(elm)->field.sqe_next; \
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(head)->sqh_first = (elm); \
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} while (0)
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#define SIMPLEQ_INSERT_TAIL(head, elm, field) do { \
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(elm)->field.sqe_next = NULL; \
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*(head)->sqh_last = (elm); \
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(head)->sqh_last = &(elm)->field.sqe_next; \
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} while (0)
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#define SIMPLEQ_INSERT_AFTER(head, listelm, elm, field) do { \
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if (((elm)->field.sqe_next = (listelm)->field.sqe_next) == NULL)\
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(head)->sqh_last = &(elm)->field.sqe_next; \
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(listelm)->field.sqe_next = (elm); \
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} while (0)
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#define SIMPLEQ_REMOVE_HEAD(head, field) do { \
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if (((head)->sqh_first = (head)->sqh_first->field.sqe_next) == NULL) \
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(head)->sqh_last = &(head)->sqh_first; \
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} while (0)
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#define SIMPLEQ_REMOVE_AFTER(head, elm, field) do { \
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if (((elm)->field.sqe_next = (elm)->field.sqe_next->field.sqe_next) \
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== NULL) \
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(head)->sqh_last = &(elm)->field.sqe_next; \
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} while (0)
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#define SIMPLEQ_CONCAT(head1, head2) do { \
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if (!SIMPLEQ_EMPTY((head2))) { \
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*(head1)->sqh_last = (head2)->sqh_first; \
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(head1)->sqh_last = (head2)->sqh_last; \
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SIMPLEQ_INIT((head2)); \
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} \
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} while (0)
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/*
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* XOR Simple queue definitions.
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*/
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#define XSIMPLEQ_HEAD(name, type) \
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struct name { \
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struct type *sqx_first; /* first element */ \
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struct type **sqx_last; /* addr of last next element */ \
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unsigned long sqx_cookie; \
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}
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#define XSIMPLEQ_ENTRY(type) \
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struct { \
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struct type *sqx_next; /* next element */ \
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}
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/*
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* XOR Simple queue access methods.
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*/
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#define XSIMPLEQ_XOR(head, ptr) ((__typeof(ptr))((head)->sqx_cookie ^ \
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(unsigned long)(ptr)))
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#define XSIMPLEQ_FIRST(head) XSIMPLEQ_XOR(head, ((head)->sqx_first))
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#define XSIMPLEQ_END(head) NULL
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#define XSIMPLEQ_EMPTY(head) (XSIMPLEQ_FIRST(head) == XSIMPLEQ_END(head))
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#define XSIMPLEQ_NEXT(head, elm, field) XSIMPLEQ_XOR(head, ((elm)->field.sqx_next))
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#define XSIMPLEQ_FOREACH(var, head, field) \
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for ((var) = XSIMPLEQ_FIRST(head); \
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(var) != XSIMPLEQ_END(head); \
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(var) = XSIMPLEQ_NEXT(head, var, field))
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#define XSIMPLEQ_FOREACH_SAFE(var, head, field, tvar) \
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for ((var) = XSIMPLEQ_FIRST(head); \
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(var) && ((tvar) = XSIMPLEQ_NEXT(head, var, field), 1); \
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(var) = (tvar))
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/*
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* XOR Simple queue functions.
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*/
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#define XSIMPLEQ_INIT(head) do { \
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arc4random_buf(&(head)->sqx_cookie, sizeof((head)->sqx_cookie)); \
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(head)->sqx_first = XSIMPLEQ_XOR(head, NULL); \
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(head)->sqx_last = XSIMPLEQ_XOR(head, &(head)->sqx_first); \
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} while (0)
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#define XSIMPLEQ_INSERT_HEAD(head, elm, field) do { \
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if (((elm)->field.sqx_next = (head)->sqx_first) == \
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XSIMPLEQ_XOR(head, NULL)) \
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(head)->sqx_last = XSIMPLEQ_XOR(head, &(elm)->field.sqx_next); \
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(head)->sqx_first = XSIMPLEQ_XOR(head, (elm)); \
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} while (0)
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#define XSIMPLEQ_INSERT_TAIL(head, elm, field) do { \
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(elm)->field.sqx_next = XSIMPLEQ_XOR(head, NULL); \
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*(XSIMPLEQ_XOR(head, (head)->sqx_last)) = XSIMPLEQ_XOR(head, (elm)); \
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(head)->sqx_last = XSIMPLEQ_XOR(head, &(elm)->field.sqx_next); \
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} while (0)
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#define XSIMPLEQ_INSERT_AFTER(head, listelm, elm, field) do { \
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if (((elm)->field.sqx_next = (listelm)->field.sqx_next) == \
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XSIMPLEQ_XOR(head, NULL)) \
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(head)->sqx_last = XSIMPLEQ_XOR(head, &(elm)->field.sqx_next); \
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(listelm)->field.sqx_next = XSIMPLEQ_XOR(head, (elm)); \
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} while (0)
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#define XSIMPLEQ_REMOVE_HEAD(head, field) do { \
|
||||
if (((head)->sqx_first = XSIMPLEQ_XOR(head, \
|
||||
(head)->sqx_first)->field.sqx_next) == XSIMPLEQ_XOR(head, NULL)) \
|
||||
(head)->sqx_last = XSIMPLEQ_XOR(head, &(head)->sqx_first); \
|
||||
} while (0)
|
||||
|
||||
#define XSIMPLEQ_REMOVE_AFTER(head, elm, field) do { \
|
||||
if (((elm)->field.sqx_next = XSIMPLEQ_XOR(head, \
|
||||
(elm)->field.sqx_next)->field.sqx_next) \
|
||||
== XSIMPLEQ_XOR(head, NULL)) \
|
||||
(head)->sqx_last = \
|
||||
XSIMPLEQ_XOR(head, &(elm)->field.sqx_next); \
|
||||
} while (0)
|
||||
|
||||
|
||||
/*
|
||||
* Tail queue definitions.
|
||||
*/
|
||||
#define TAILQ_HEAD(name, type) \
|
||||
struct name { \
|
||||
struct type *tqh_first; /* first element */ \
|
||||
struct type **tqh_last; /* addr of last next element */ \
|
||||
}
|
||||
|
||||
#define TAILQ_HEAD_INITIALIZER(head) \
|
||||
{ NULL, &(head).tqh_first }
|
||||
|
||||
#define TAILQ_ENTRY(type) \
|
||||
struct { \
|
||||
struct type *tqe_next; /* next element */ \
|
||||
struct type **tqe_prev; /* address of previous next element */ \
|
||||
}
|
||||
|
||||
/*
|
||||
* Tail queue access methods.
|
||||
*/
|
||||
#define TAILQ_FIRST(head) ((head)->tqh_first)
|
||||
#define TAILQ_END(head) NULL
|
||||
#define TAILQ_NEXT(elm, field) ((elm)->field.tqe_next)
|
||||
#define TAILQ_LAST(head, headname) \
|
||||
(*(((struct headname *)((head)->tqh_last))->tqh_last))
|
||||
/* XXX */
|
||||
#define TAILQ_PREV(elm, headname, field) \
|
||||
(*(((struct headname *)((elm)->field.tqe_prev))->tqh_last))
|
||||
#define TAILQ_EMPTY(head) \
|
||||
(TAILQ_FIRST(head) == TAILQ_END(head))
|
||||
|
||||
#define TAILQ_FOREACH(var, head, field) \
|
||||
for((var) = TAILQ_FIRST(head); \
|
||||
(var) != TAILQ_END(head); \
|
||||
(var) = TAILQ_NEXT(var, field))
|
||||
|
||||
#define TAILQ_FOREACH_SAFE(var, head, field, tvar) \
|
||||
for ((var) = TAILQ_FIRST(head); \
|
||||
(var) != TAILQ_END(head) && \
|
||||
((tvar) = TAILQ_NEXT(var, field), 1); \
|
||||
(var) = (tvar))
|
||||
|
||||
|
||||
#define TAILQ_FOREACH_REVERSE(var, head, headname, field) \
|
||||
for((var) = TAILQ_LAST(head, headname); \
|
||||
(var) != TAILQ_END(head); \
|
||||
(var) = TAILQ_PREV(var, headname, field))
|
||||
|
||||
#define TAILQ_FOREACH_REVERSE_SAFE(var, head, headname, field, tvar) \
|
||||
for ((var) = TAILQ_LAST(head, headname); \
|
||||
(var) != TAILQ_END(head) && \
|
||||
((tvar) = TAILQ_PREV(var, headname, field), 1); \
|
||||
(var) = (tvar))
|
||||
|
||||
/*
|
||||
* Tail queue functions.
|
||||
*/
|
||||
#define TAILQ_INIT(head) do { \
|
||||
(head)->tqh_first = NULL; \
|
||||
(head)->tqh_last = &(head)->tqh_first; \
|
||||
} while (0)
|
||||
|
||||
#define TAILQ_INSERT_HEAD(head, elm, field) do { \
|
||||
if (((elm)->field.tqe_next = (head)->tqh_first) != NULL) \
|
||||
(head)->tqh_first->field.tqe_prev = \
|
||||
&(elm)->field.tqe_next; \
|
||||
else \
|
||||
(head)->tqh_last = &(elm)->field.tqe_next; \
|
||||
(head)->tqh_first = (elm); \
|
||||
(elm)->field.tqe_prev = &(head)->tqh_first; \
|
||||
} while (0)
|
||||
|
||||
#define TAILQ_INSERT_TAIL(head, elm, field) do { \
|
||||
(elm)->field.tqe_next = NULL; \
|
||||
(elm)->field.tqe_prev = (head)->tqh_last; \
|
||||
*(head)->tqh_last = (elm); \
|
||||
(head)->tqh_last = &(elm)->field.tqe_next; \
|
||||
} while (0)
|
||||
|
||||
#define TAILQ_INSERT_AFTER(head, listelm, elm, field) do { \
|
||||
if (((elm)->field.tqe_next = (listelm)->field.tqe_next) != NULL)\
|
||||
(elm)->field.tqe_next->field.tqe_prev = \
|
||||
&(elm)->field.tqe_next; \
|
||||
else \
|
||||
(head)->tqh_last = &(elm)->field.tqe_next; \
|
||||
(listelm)->field.tqe_next = (elm); \
|
||||
(elm)->field.tqe_prev = &(listelm)->field.tqe_next; \
|
||||
} while (0)
|
||||
|
||||
#define TAILQ_INSERT_BEFORE(listelm, elm, field) do { \
|
||||
(elm)->field.tqe_prev = (listelm)->field.tqe_prev; \
|
||||
(elm)->field.tqe_next = (listelm); \
|
||||
*(listelm)->field.tqe_prev = (elm); \
|
||||
(listelm)->field.tqe_prev = &(elm)->field.tqe_next; \
|
||||
} while (0)
|
||||
|
||||
#define TAILQ_REMOVE(head, elm, field) do { \
|
||||
if (((elm)->field.tqe_next) != NULL) \
|
||||
(elm)->field.tqe_next->field.tqe_prev = \
|
||||
(elm)->field.tqe_prev; \
|
||||
else \
|
||||
(head)->tqh_last = (elm)->field.tqe_prev; \
|
||||
*(elm)->field.tqe_prev = (elm)->field.tqe_next; \
|
||||
_Q_INVALIDATE((elm)->field.tqe_prev); \
|
||||
_Q_INVALIDATE((elm)->field.tqe_next); \
|
||||
} while (0)
|
||||
|
||||
#define TAILQ_REPLACE(head, elm, elm2, field) do { \
|
||||
if (((elm2)->field.tqe_next = (elm)->field.tqe_next) != NULL) \
|
||||
(elm2)->field.tqe_next->field.tqe_prev = \
|
||||
&(elm2)->field.tqe_next; \
|
||||
else \
|
||||
(head)->tqh_last = &(elm2)->field.tqe_next; \
|
||||
(elm2)->field.tqe_prev = (elm)->field.tqe_prev; \
|
||||
*(elm2)->field.tqe_prev = (elm2); \
|
||||
_Q_INVALIDATE((elm)->field.tqe_prev); \
|
||||
_Q_INVALIDATE((elm)->field.tqe_next); \
|
||||
} while (0)
|
||||
|
||||
#define TAILQ_CONCAT(head1, head2, field) do { \
|
||||
if (!TAILQ_EMPTY(head2)) { \
|
||||
*(head1)->tqh_last = (head2)->tqh_first; \
|
||||
(head2)->tqh_first->field.tqe_prev = (head1)->tqh_last; \
|
||||
(head1)->tqh_last = (head2)->tqh_last; \
|
||||
TAILQ_INIT((head2)); \
|
||||
} \
|
||||
} while (0)
|
||||
|
||||
#endif /* !_SYS_QUEUE_H_ */
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif
|
||||
346
src/syslogd.c
346
src/syslogd.c
@ -62,6 +62,7 @@ static char sccsid[] __attribute__((unused)) =
|
||||
#include <assert.h>
|
||||
#include <ctype.h>
|
||||
#include <getopt.h>
|
||||
#include <glob.h>
|
||||
#include <setjmp.h>
|
||||
#include <stdarg.h>
|
||||
#include <stdio.h>
|
||||
@ -156,7 +157,6 @@ char ctty[] = _PATH_CONSOLE;
|
||||
char **parts;
|
||||
|
||||
static int debugging_on = 0;
|
||||
static int nlogs = -1;
|
||||
static int restart = 0;
|
||||
|
||||
#define MAXFUNIX 20
|
||||
@ -214,7 +214,7 @@ char *TypeNames[] = {
|
||||
"FORW(UNKNOWN)", "PIPE"
|
||||
};
|
||||
|
||||
struct filed *Files = NULL;
|
||||
static SIMPLEQ_HEAD(files, filed) fhead = SIMPLEQ_HEAD_INITIALIZER(fhead);
|
||||
struct filed consfile;
|
||||
|
||||
struct code {
|
||||
@ -317,7 +317,7 @@ void die(int sig);
|
||||
void doexit(int sig);
|
||||
void init();
|
||||
static int strtobytes(char *arg);
|
||||
void cfline(char *line, struct filed *f);
|
||||
static int cfparse(FILE *fp, struct files *newf);
|
||||
int decode(char *name, struct code *codetab);
|
||||
static void logit(char *, ...);
|
||||
void sighup_handler(int);
|
||||
@ -1448,7 +1448,7 @@ static void logmsg(struct buf_msg *buffer)
|
||||
buffer->msgid == NULL ? "-" : buffer->msgid,
|
||||
buffer->sd == NULL ? "-" : buffer->sd, buffer->msg);
|
||||
|
||||
for (f = Files; f; f = f->f_next) {
|
||||
SIMPLEQ_FOREACH(f, &fhead, f_link) {
|
||||
/* skip messages that are incorrect priority */
|
||||
if ((f->f_pmask[fac] == TABLE_NOPRI) ||
|
||||
((f->f_pmask[fac] & (1 << prilev)) == 0))
|
||||
@ -2162,7 +2162,7 @@ void domark(int signo)
|
||||
}
|
||||
}
|
||||
|
||||
for (f = Files; f; f = f->f_next) {
|
||||
SIMPLEQ_FOREACH(f, &fhead, f_link) {
|
||||
if (f->f_prevcount && now >= REPEATTIME(f)) {
|
||||
logit("flush %s: repeated %d times, %d sec.\n",
|
||||
TypeNames[f->f_type], f->f_prevcount,
|
||||
@ -2202,17 +2202,15 @@ void logerror(const char *type)
|
||||
|
||||
void die(int signo)
|
||||
{
|
||||
struct filed *f;
|
||||
int lognum;
|
||||
int i;
|
||||
struct filed *f, *next;
|
||||
int was_initialized = Initialized;
|
||||
int i;
|
||||
|
||||
Initialized = 0; /* Don't log SIGCHLDs in case we
|
||||
receive one during exiting */
|
||||
|
||||
for (lognum = 0; lognum <= nlogs; lognum++) {
|
||||
f = &Files[lognum];
|
||||
/* flush any pending output */
|
||||
/* flush any pending output */
|
||||
SIMPLEQ_FOREACH(f, &fhead, f_link) {
|
||||
if (f->f_prevcount)
|
||||
fprintlog(f, NULL);
|
||||
}
|
||||
@ -2223,10 +2221,34 @@ void die(int signo)
|
||||
flog(LOG_SYSLOG | LOG_INFO, "exiting on signal %d", signo);
|
||||
}
|
||||
|
||||
/*
|
||||
* Close all open log files.
|
||||
*/
|
||||
SIMPLEQ_FOREACH_SAFE(f, &fhead, f_link, next) {
|
||||
switch (f->f_type) {
|
||||
case F_FILE:
|
||||
case F_TTY:
|
||||
case F_CONSOLE:
|
||||
case F_PIPE:
|
||||
if (f->f_file >= 0)
|
||||
(void)close(f->f_file);
|
||||
break;
|
||||
|
||||
case F_FORW:
|
||||
if (f->f_un.f_forw.f_addr)
|
||||
freeaddrinfo(f->f_un.f_forw.f_addr);
|
||||
break;
|
||||
}
|
||||
|
||||
free(f);
|
||||
}
|
||||
|
||||
/* Close the UNIX sockets. */
|
||||
for (i = 0; i < nfunix; i++)
|
||||
for (i = 0; i < nfunix; i++) {
|
||||
if (funix[i] != -1)
|
||||
close(funix[i]);
|
||||
}
|
||||
|
||||
/* Close the inet sockets. */
|
||||
if (InetInuse && finet) {
|
||||
for (i = 0; i < *finet; i++)
|
||||
@ -2235,9 +2257,10 @@ void die(int signo)
|
||||
}
|
||||
|
||||
/* Clean-up files. */
|
||||
for (i = 0; i < nfunix; i++)
|
||||
for (i = 0; i < nfunix; i++) {
|
||||
if (funixn[i] && funix[i] != -1)
|
||||
(void)unlink(funixn[i]);
|
||||
}
|
||||
|
||||
(void)remove_pid(PidFile);
|
||||
exit(0);
|
||||
@ -2259,7 +2282,7 @@ static int cffwd(void)
|
||||
struct filed *f;
|
||||
int fwd = 0;
|
||||
|
||||
for (f = Files; f; f = f->f_next) {
|
||||
SIMPLEQ_FOREACH(f, &fhead, f_link) {
|
||||
if (f->f_type == F_FORW ||
|
||||
f->f_type == F_FORW_SUSP ||
|
||||
f->f_type == F_FORW_UNKN)
|
||||
@ -2269,93 +2292,20 @@ static int cffwd(void)
|
||||
return fwd;
|
||||
}
|
||||
|
||||
/*
|
||||
* Read /etc/syslog.conf and any *.conf in /etc/syslog.d/
|
||||
*/
|
||||
static int cfparse(char *fn)
|
||||
/* Create fallback .conf with err+panic sent to console */
|
||||
static FILE *cftemp(void)
|
||||
{
|
||||
struct filed **nextp = NULL;
|
||||
struct filed *f;
|
||||
FILE *fp;
|
||||
char cbuf[BUFSIZ];
|
||||
char *cline;
|
||||
char *p;
|
||||
|
||||
fp = fopen(fn, "r");
|
||||
if (!fp) {
|
||||
logit("Cannot open %s: %s\n", fn, strerror(errno));
|
||||
fp = tmpfile();
|
||||
if (!fp)
|
||||
return NULL;
|
||||
|
||||
/* Create fallback .conf with err+panic sent to console */
|
||||
Files = f = calloc(1, sizeof(*f));
|
||||
if (!f) {
|
||||
logerror("Cannot allocate memory for log target/file");
|
||||
return 1;
|
||||
}
|
||||
cfline("*.err\t" _PATH_CONSOLE, f);
|
||||
fprintf(fp, "*.err\t%s\n", _PATH_CONSOLE);
|
||||
fprintf(fp, "*.panic\t*\n");
|
||||
|
||||
f->f_next = calloc(1, sizeof(*f)); /* ASP */
|
||||
if (!f->f_next) {
|
||||
logerror("Cannot allocate memory for log target/file");
|
||||
return 1;
|
||||
}
|
||||
f = f->f_next;
|
||||
cfline("*.panic\t*", f);
|
||||
|
||||
Initialized = 1;
|
||||
return 0;
|
||||
}
|
||||
|
||||
/*
|
||||
* Foreach line in the conf table, open that file.
|
||||
*/
|
||||
cline = cbuf;
|
||||
while (fgets(cline, sizeof(cbuf) - (cline - cbuf), fp) != NULL) {
|
||||
/*
|
||||
* check for end-of-section, comments, strip off trailing
|
||||
* spaces and newline character.
|
||||
*/
|
||||
for (p = cline; isspace(*p); ++p)
|
||||
;
|
||||
if (*p == '\0' || *p == '#')
|
||||
continue;
|
||||
|
||||
memmove(cline, p, strlen(p) + 1);
|
||||
for (p = strchr(cline, '\0'); isspace(*--p);)
|
||||
;
|
||||
|
||||
if (*p == '\\') {
|
||||
if ((p - cbuf) > BUFSIZ - 30) {
|
||||
/* Oops the buffer is full - what now? */
|
||||
cline = cbuf;
|
||||
} else {
|
||||
*p = 0;
|
||||
cline = p;
|
||||
continue;
|
||||
}
|
||||
} else
|
||||
cline = cbuf;
|
||||
|
||||
*++p = '\0';
|
||||
|
||||
f = (struct filed *)calloc(1, sizeof(*f));
|
||||
if (!f) {
|
||||
logerror("Cannot allocate memory for log file");
|
||||
return 1;
|
||||
}
|
||||
|
||||
if (!nextp)
|
||||
Files = f;
|
||||
else
|
||||
*nextp = f;
|
||||
nextp = &f->f_next;
|
||||
|
||||
cfline(cbuf, f);
|
||||
}
|
||||
|
||||
/* close the configuration file */
|
||||
(void)fclose(fp);
|
||||
|
||||
return 0;
|
||||
rewind(fp);
|
||||
return fp;
|
||||
}
|
||||
|
||||
/*
|
||||
@ -2364,50 +2314,38 @@ static int cfparse(char *fn)
|
||||
void init(void)
|
||||
{
|
||||
struct hostent *hent;
|
||||
struct filed *f;
|
||||
struct files newf = SIMPLEQ_HEAD_INITIALIZER(newf);
|
||||
struct filed *f, *next;
|
||||
FILE *fp;
|
||||
char *p;
|
||||
int i, lognum;
|
||||
int i;
|
||||
|
||||
/*
|
||||
* Close all open log files and free log descriptor array.
|
||||
*/
|
||||
logit("Called init.\n");
|
||||
Initialized = 0;
|
||||
if (nlogs > -1) {
|
||||
logit("Initializing log structures.\n");
|
||||
|
||||
for (lognum = 0; lognum <= nlogs; lognum++) {
|
||||
f = &Files[lognum];
|
||||
logit("Initializing log structures.\n");
|
||||
SIMPLEQ_FOREACH(f, &fhead, f_link) {
|
||||
/* flush any pending output */
|
||||
if (f->f_prevcount)
|
||||
fprintlog(f, NULL);
|
||||
|
||||
/* flush any pending output */
|
||||
if (f->f_prevcount)
|
||||
fprintlog(f, NULL);
|
||||
|
||||
switch (f->f_type) {
|
||||
case F_FILE:
|
||||
case F_PIPE:
|
||||
case F_TTY:
|
||||
case F_CONSOLE:
|
||||
(void)close(f->f_file);
|
||||
break;
|
||||
case F_FORW:
|
||||
case F_FORW_SUSP:
|
||||
freeaddrinfo(f->f_un.f_forw.f_addr);
|
||||
break;
|
||||
}
|
||||
switch (f->f_type) {
|
||||
case F_FILE:
|
||||
case F_PIPE:
|
||||
case F_TTY:
|
||||
case F_CONSOLE:
|
||||
(void)close(f->f_file);
|
||||
break;
|
||||
case F_FORW:
|
||||
case F_FORW_SUSP:
|
||||
freeaddrinfo(f->f_un.f_forw.f_addr);
|
||||
break;
|
||||
}
|
||||
|
||||
/*
|
||||
* This is needed especially when HUPing syslogd as the
|
||||
* structure would grow infinitively. -Joey
|
||||
*/
|
||||
nlogs = -1;
|
||||
free((void *)Files);
|
||||
Files = NULL;
|
||||
}
|
||||
|
||||
f = NULL;
|
||||
|
||||
/* Get hostname */
|
||||
(void)gethostname(LocalHostName, sizeof(LocalHostName));
|
||||
LocalDomain = emptystring;
|
||||
@ -2447,8 +2385,45 @@ void init(void)
|
||||
/*
|
||||
* Read configuration file(s)
|
||||
*/
|
||||
if (cfparse(ConfFile))
|
||||
fp = fopen(ConfFile, "r");
|
||||
if (!fp) {
|
||||
logit("Cannot open %s: %s\n", ConfFile, strerror(errno));
|
||||
|
||||
fp = cftemp();
|
||||
if (!fp) {
|
||||
logit("Cannot even create a tempfile: %s", strerror(errno));
|
||||
return;
|
||||
}
|
||||
}
|
||||
|
||||
if (cfparse(fp, &newf)) {
|
||||
fclose(fp);
|
||||
return;
|
||||
}
|
||||
fclose(fp);
|
||||
|
||||
/*
|
||||
* Close all open log files.
|
||||
*/
|
||||
SIMPLEQ_FOREACH_SAFE(f, &fhead, f_link, next) {
|
||||
switch (f->f_type) {
|
||||
case F_FILE:
|
||||
case F_TTY:
|
||||
case F_CONSOLE:
|
||||
case F_PIPE:
|
||||
if (f->f_file >= 0)
|
||||
(void)close(f->f_file);
|
||||
break;
|
||||
|
||||
case F_FORW:
|
||||
if (f->f_un.f_forw.f_addr)
|
||||
freeaddrinfo(f->f_un.f_forw.f_addr);
|
||||
break;
|
||||
}
|
||||
|
||||
free(f);
|
||||
}
|
||||
fhead = newf;
|
||||
|
||||
for (i = 0; i < nfunix; i++) {
|
||||
if (funix[i] != -1)
|
||||
@ -2482,7 +2457,7 @@ void init(void)
|
||||
Initialized = 1;
|
||||
|
||||
if (Debug) {
|
||||
for (f = Files; f; f = f->f_next) {
|
||||
SIMPLEQ_FOREACH(f, &fhead, f_link) {
|
||||
if (f->f_type != F_UNUSED) {
|
||||
for (i = 0; i <= LOG_NFACILITIES; i++)
|
||||
if (f->f_pmask[i] == TABLE_NOPRI)
|
||||
@ -2528,9 +2503,10 @@ void init(void)
|
||||
/*
|
||||
* Crack a configuration file line
|
||||
*/
|
||||
void cfline(char *line, struct filed *f)
|
||||
static struct filed *cfline(char *line)
|
||||
{
|
||||
struct addrinfo hints, *ai;
|
||||
struct filed *f;
|
||||
char buf[MAXLINE];
|
||||
char xbuf[MAXLINE + 24];
|
||||
char *p, *q, *bp;
|
||||
@ -2540,15 +2516,14 @@ void cfline(char *line, struct filed *f)
|
||||
|
||||
logit("cfline(%s)\n", line);
|
||||
|
||||
errno = 0; /* keep strerror() stuff out of logerror messages */
|
||||
|
||||
/* clear out file entry */
|
||||
memset((char *)f, 0, sizeof(*f));
|
||||
for (i = 0; i <= LOG_NFACILITIES; i++) {
|
||||
f->f_pmask[i] = TABLE_NOPRI;
|
||||
f->f_flags = 0;
|
||||
f = calloc(1, sizeof(*f));
|
||||
if (!f) {
|
||||
logerror("Cannot allocate memory for log file");
|
||||
return NULL;
|
||||
}
|
||||
|
||||
errno = 0; /* keep strerror() stuff out of logerror messages */
|
||||
|
||||
/* default rotate from command line */
|
||||
f->f_rotatecount = RotateCnt;
|
||||
f->f_rotatesz = RotateSz;
|
||||
@ -2589,7 +2564,9 @@ void cfline(char *line, struct filed *f)
|
||||
if (pri < 0) {
|
||||
(void)snprintf(xbuf, sizeof(xbuf), "unknown priority name \"%s\"", buf);
|
||||
logerror(xbuf);
|
||||
return;
|
||||
free(f);
|
||||
|
||||
return NULL;
|
||||
}
|
||||
|
||||
/* scan facilities */
|
||||
@ -2628,10 +2605,11 @@ void cfline(char *line, struct filed *f)
|
||||
} else {
|
||||
i = decode(buf, FacNames);
|
||||
if (i < 0) {
|
||||
|
||||
(void)snprintf(xbuf, sizeof(xbuf), "unknown facility name \"%s\"", buf);
|
||||
logerror(xbuf);
|
||||
return;
|
||||
free(f);
|
||||
|
||||
return NULL;
|
||||
}
|
||||
|
||||
if (pri == INTERNAL_NOPRI) {
|
||||
@ -2787,6 +2765,92 @@ void cfline(char *line, struct filed *f)
|
||||
f->f_type = F_USERS;
|
||||
break;
|
||||
}
|
||||
|
||||
return f;
|
||||
}
|
||||
|
||||
/*
|
||||
* Parse .conf file and append to list
|
||||
*/
|
||||
static int cfparse(FILE *fp, struct files *newf)
|
||||
{
|
||||
struct filed *f;
|
||||
char cbuf[BUFSIZ];
|
||||
char *cline;
|
||||
char *p;
|
||||
|
||||
if (!fp)
|
||||
return 1;
|
||||
|
||||
/*
|
||||
* Foreach line in the conf table, open that file.
|
||||
*/
|
||||
cline = cbuf;
|
||||
while (fgets(cline, sizeof(cbuf) - (cline - cbuf), fp) != NULL) {
|
||||
/*
|
||||
* check for end-of-section, comments, strip off trailing
|
||||
* spaces and newline character.
|
||||
*/
|
||||
for (p = cline; isspace(*p); ++p)
|
||||
;
|
||||
if (*p == '\0' || *p == '#')
|
||||
continue;
|
||||
|
||||
memmove(cline, p, strlen(p) + 1);
|
||||
for (p = strchr(cline, '\0'); isspace(*--p);)
|
||||
;
|
||||
|
||||
if (*p == '\\') {
|
||||
if ((p - cbuf) > BUFSIZ - 30) {
|
||||
/* Oops the buffer is full - what now? */
|
||||
cline = cbuf;
|
||||
} else {
|
||||
*p = 0;
|
||||
cline = p;
|
||||
continue;
|
||||
}
|
||||
} else
|
||||
cline = cbuf;
|
||||
|
||||
*++p = '\0';
|
||||
|
||||
if (!strncmp(cbuf, "include", 7)) {
|
||||
glob_t gl;
|
||||
|
||||
p = &cbuf[7];
|
||||
while (*p && isspace(*p))
|
||||
p++;
|
||||
|
||||
logit("Searching for %s ...\n", p);
|
||||
if (glob(p, GLOB_NOSORT, NULL, &gl))
|
||||
logit("No files match %s\n", p);
|
||||
|
||||
for (size_t i = 0; i < gl.gl_pathc; i++) {
|
||||
FILE *fpi;
|
||||
|
||||
logit("Opening %s ...\n", gl.gl_pathv[i]);
|
||||
fpi = fopen(gl.gl_pathv[i], "r");
|
||||
if (!fpi) {
|
||||
logit("Failed opening %s: %s\n",
|
||||
gl.gl_pathv[i], strerror(errno));
|
||||
continue;
|
||||
}
|
||||
|
||||
logit("Parsing %s ...", gl.gl_pathv[i]);
|
||||
cfparse(fpi, newf);
|
||||
fclose(fpi);
|
||||
}
|
||||
continue;
|
||||
}
|
||||
|
||||
f = cfline(cbuf);
|
||||
if (!f)
|
||||
continue;
|
||||
|
||||
SIMPLEQ_INSERT_TAIL(newf, f, f_link);
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/*
|
||||
|
||||
@ -32,6 +32,7 @@
|
||||
#ifndef SYSKLOGD_SYSLOGD_H_
|
||||
#define SYSKLOGD_SYSLOGD_H_
|
||||
|
||||
#include "queue.h"
|
||||
#include "syslog.h"
|
||||
|
||||
#ifdef UT_NAMESIZE
|
||||
@ -86,9 +87,8 @@ struct buf_msg {
|
||||
* We require f_file to be valid if f_type is F_FILE, F_CONSOLE, F_TTY
|
||||
* or if f_type is F_PIPE and f_pid > 0.
|
||||
*/
|
||||
|
||||
struct filed {
|
||||
struct filed *f_next; /* next in linked list */
|
||||
SIMPLEQ_ENTRY(filed) f_link;
|
||||
|
||||
short f_type; /* entry type, see below */
|
||||
short f_file; /* file descriptor */
|
||||
|
||||
Loading…
Reference in New Issue
Block a user