efeb8bffe3
Convert ipfilter userland function declarations from K&R to ANSI. This syncs our function declarations with NetBSD hg commit 75edcd7552a0 (apply our changes). Though not copied from NetBSD, this change was partially inspired by NetBSD's work and inspired by style(9). Reviewed by: glebius (for #network) MFC after: 1 month Differential Revision: https://reviews.freebsd.org/D33595
151 lines
3.4 KiB
C
151 lines
3.4 KiB
C
/* $FreeBSD$ */
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/*
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* Copyright (C) 2012 by Darren Reed.
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*
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* See the IPFILTER.LICENCE file for details on licencing.
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*
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* $Id$
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*/
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#include "ipf.h"
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#define EMM_MAGIC 0x97dd8b3a
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void eMrwlock_read_enter(eMrwlock_t *rw, char *file, int line)
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{
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if (rw->eMrw_magic != EMM_MAGIC) {
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fprintf(stderr, "%s:eMrwlock_read_enter(%p): bad magic: %#x\n",
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rw->eMrw_owner, rw, rw->eMrw_magic);
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abort();
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}
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if (rw->eMrw_read != 0 || rw->eMrw_write != 0) {
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fprintf(stderr,
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"%s:eMrwlock_read_enter(%p): already locked: %d/%d\n",
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rw->eMrw_owner, rw, rw->eMrw_read, rw->eMrw_write);
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abort();
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}
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rw->eMrw_read++;
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rw->eMrw_heldin = file;
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rw->eMrw_heldat = line;
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}
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void eMrwlock_write_enter(eMrwlock_t *rw, char *file, int line)
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{
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if (rw->eMrw_magic != EMM_MAGIC) {
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fprintf(stderr, "%s:eMrwlock_write_enter(%p): bad magic: %#x\n",
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rw->eMrw_owner, rw, rw->eMrw_magic);
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abort();
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}
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if (rw->eMrw_read != 0 || rw->eMrw_write != 0) {
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fprintf(stderr,
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"%s:eMrwlock_write_enter(%p): already locked: %d/%d\n",
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rw->eMrw_owner, rw, rw->eMrw_read, rw->eMrw_write);
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abort();
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}
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rw->eMrw_write++;
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rw->eMrw_heldin = file;
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rw->eMrw_heldat = line;
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}
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void eMrwlock_try_upgrade(eMrwlock_t *rw, char *file, int line)
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{
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if (rw->eMrw_magic != EMM_MAGIC) {
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fprintf(stderr, "%s:eMrwlock_write_enter(%p): bad magic: %#x\n",
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rw->eMrw_owner, rw, rw->eMrw_magic);
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abort();
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}
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if (rw->eMrw_read != 0 || rw->eMrw_write != 0) {
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fprintf(stderr,
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"%s:eMrwlock_try_upgrade(%p): already locked: %d/%d\n",
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rw->eMrw_owner, rw, rw->eMrw_read, rw->eMrw_write);
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abort();
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}
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rw->eMrw_write++;
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rw->eMrw_heldin = file;
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rw->eMrw_heldat = line;
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}
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void eMrwlock_downgrade(eMrwlock_t *rw, char *file, int line)
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{
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if (rw->eMrw_magic != EMM_MAGIC) {
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fprintf(stderr, "%s:eMrwlock_write_enter(%p): bad magic: %#x\n",
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rw->eMrw_owner, rw, rw->eMrw_magic);
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abort();
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}
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if (rw->eMrw_read != 0 || rw->eMrw_write != 1) {
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fprintf(stderr,
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"%s:eMrwlock_write_enter(%p): already locked: %d/%d\n",
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rw->eMrw_owner, rw, rw->eMrw_read, rw->eMrw_write);
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abort();
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}
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rw->eMrw_write--;
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rw->eMrw_read++;
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rw->eMrw_heldin = file;
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rw->eMrw_heldat = line;
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}
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void eMrwlock_exit(eMrwlock_t *rw)
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{
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if (rw->eMrw_magic != EMM_MAGIC) {
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fprintf(stderr, "%s:eMrwlock_exit(%p): bad magic: %#x\n",
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rw->eMrw_owner, rw, rw->eMrw_magic);
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abort();
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}
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if (rw->eMrw_read != 1 && rw->eMrw_write != 1) {
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fprintf(stderr, "%s:eMrwlock_exit(%p): not locked: %d/%d\n",
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rw->eMrw_owner, rw, rw->eMrw_read, rw->eMrw_write);
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abort();
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}
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if (rw->eMrw_read == 1)
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rw->eMrw_read--;
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else if (rw->eMrw_write == 1)
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rw->eMrw_write--;
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rw->eMrw_heldin = NULL;
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rw->eMrw_heldat = 0;
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}
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static int initcount = 0;
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void eMrwlock_init(eMrwlock_t *rw, char *who)
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{
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if (rw->eMrw_magic == EMM_MAGIC) { /* safe bet ? */
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fprintf(stderr,
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"%s:eMrwlock_init(%p): already initialised?: %#x\n",
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rw->eMrw_owner, rw, rw->eMrw_magic);
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abort();
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}
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rw->eMrw_magic = EMM_MAGIC;
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rw->eMrw_read = 0;
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rw->eMrw_write = 0;
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if (who != NULL)
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rw->eMrw_owner = strdup(who);
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else
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rw->eMrw_owner = NULL;
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initcount++;
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}
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void eMrwlock_destroy(eMrwlock_t *rw)
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{
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if (rw->eMrw_magic != EMM_MAGIC) {
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fprintf(stderr, "%s:eMrwlock_destroy(%p): bad magic: %#x\n",
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rw->eMrw_owner, rw, rw->eMrw_magic);
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abort();
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}
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if (rw->eMrw_owner != NULL)
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free(rw->eMrw_owner);
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memset(rw, 0xa5, sizeof(*rw));
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initcount--;
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}
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void ipf_rwlock_clean(void)
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{
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if (initcount != 0)
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abort();
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}
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