/* $OpenBSD: ap_ctx.c,v 1.6 2005/06/20 12:23:22 robert Exp $ */ /* ==================================================================== * Copyright (c) 1998-2000 The Apache Group. 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 acknowledgment: * "This product includes software developed by the Apache Group * for use in the Apache HTTP server project (http://www.apache.org/)." * * 4. The names "Apache Server" and "Apache Group" must not be used to * endorse or promote products derived from this software without * prior written permission. For written permission, please contact * apache@apache.org. * * 5. Products derived from this software may not be called "Apache" * nor may "Apache" appear in their names without prior written * permission of the Apache Group. * * 6. Redistributions of any form whatsoever must retain the following * acknowledgment: * "This product includes software developed by the Apache Group * for use in the Apache HTTP server project (http://www.apache.org/)." * * THIS SOFTWARE IS PROVIDED BY THE APACHE GROUP ``AS IS'' AND ANY * EXPRESSED 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 APACHE GROUP OR * ITS 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. * ==================================================================== * * This software consists of voluntary contributions made by many * individuals on behalf of the Apache Group and was originally based * on public domain software written at the National Center for * Supercomputing Applications, University of Illinois, Urbana-Champaign. * For more information on the Apache Group and the Apache HTTP server * project, please see <http://www.apache.org/>. * */ /* ** Generic Context Interface for Apache ** Written by Ralf S. Engelschall <rse@engelschall.com> */ #include "httpd.h" #include "ap_config.h" #include "ap_ctx.h" API_EXPORT(ap_ctx *) ap_ctx_new(pool *p) { ap_ctx *ctx; int i; if (p != NULL) { ctx = (ap_ctx *)ap_palloc(p, sizeof(ap_ctx_rec)); ctx->cr_pool = p; ctx->cr_entry = (ap_ctx_entry **) ap_palloc(p, sizeof(ap_ctx_entry *)*(AP_CTX_MAX_ENTRIES+1)); } else { ctx = (ap_ctx *)malloc(sizeof(ap_ctx_rec)); ctx->cr_pool = NULL; ctx->cr_entry = (ap_ctx_entry **) malloc(sizeof(ap_ctx_entry *)*(AP_CTX_MAX_ENTRIES+1)); } for (i = 0; i < AP_CTX_MAX_ENTRIES+1; i++) ctx->cr_entry[i] = NULL; return ctx; } API_EXPORT(void) ap_ctx_set(ap_ctx *ctx, char *key, void *val) { int i; ap_ctx_entry *ce; ce = NULL; for (i = 0; ctx->cr_entry[i] != NULL; i++) { if (strcmp(ctx->cr_entry[i]->ce_key, key) == 0) { ce = ctx->cr_entry[i]; break; } } if (ce == NULL) { if (i == AP_CTX_MAX_ENTRIES) return; if (ctx->cr_pool != NULL) { ce = (ap_ctx_entry *)ap_palloc(ctx->cr_pool, sizeof(ap_ctx_entry)); ce->ce_key = ap_pstrdup(ctx->cr_pool, key); } else { ce = (ap_ctx_entry *)malloc(sizeof(ap_ctx_entry)); ce->ce_key = strdup(key); } ctx->cr_entry[i] = ce; ctx->cr_entry[i+1] = NULL; } ce->ce_val = val; return; } API_EXPORT(void *) ap_ctx_get(ap_ctx *ctx, char *key) { int i; for (i = 0; ctx->cr_entry[i] != NULL; i++) if (strcmp(ctx->cr_entry[i]->ce_key, key) == 0) return ctx->cr_entry[i]->ce_val; return NULL; } API_EXPORT(ap_ctx *) ap_ctx_overlay(pool *p, ap_ctx *over, ap_ctx *base) { ap_ctx *new; int i; #ifdef POOL_DEBUG if (p != NULL) { if (!ap_pool_is_ancestor(over->cr_pool, p)) ap_log_assert("ap_ctx_overlay: overlay's pool is not an" " ancestor of p", __FILE__, __LINE__); if (!ap_pool_is_ancestor(base->cr_pool, p)) ap_log_assert("ap_ctx_overlay: base's pool is not an" " ancestor of p", __FILE__, __LINE__); } #endif if ((new = ap_ctx_new(p)) == NULL) return NULL; memcpy(new->cr_entry, base->cr_entry, sizeof(ap_ctx_entry *)*(AP_CTX_MAX_ENTRIES+1)); for (i = 0; over->cr_entry[i] != NULL; i++) ap_ctx_set(new, over->cr_entry[i]->ce_key, over->cr_entry[i]->ce_val); return new; }