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Annotation of embedaddon/libpdel/config/app_config_alog.c, revision 1.1

1.1     ! misho       1: 
        !             2: /*
        !             3:  * Copyright (c) 2001-2002 Packet Design, LLC.
        !             4:  * All rights reserved.
        !             5:  * 
        !             6:  * Subject to the following obligations and disclaimer of warranty,
        !             7:  * use and redistribution of this software, in source or object code
        !             8:  * forms, with or without modifications are expressly permitted by
        !             9:  * Packet Design; provided, however, that:
        !            10:  * 
        !            11:  *    (i)  Any and all reproductions of the source or object code
        !            12:  *         must include the copyright notice above and the following
        !            13:  *         disclaimer of warranties; and
        !            14:  *    (ii) No rights are granted, in any manner or form, to use
        !            15:  *         Packet Design trademarks, including the mark "PACKET DESIGN"
        !            16:  *         on advertising, endorsements, or otherwise except as such
        !            17:  *         appears in the above copyright notice or in the software.
        !            18:  * 
        !            19:  * THIS SOFTWARE IS BEING PROVIDED BY PACKET DESIGN "AS IS", AND
        !            20:  * TO THE MAXIMUM EXTENT PERMITTED BY LAW, PACKET DESIGN MAKES NO
        !            21:  * REPRESENTATIONS OR WARRANTIES, EXPRESS OR IMPLIED, REGARDING
        !            22:  * THIS SOFTWARE, INCLUDING WITHOUT LIMITATION, ANY AND ALL IMPLIED
        !            23:  * WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE,
        !            24:  * OR NON-INFRINGEMENT.  PACKET DESIGN DOES NOT WARRANT, GUARANTEE,
        !            25:  * OR MAKE ANY REPRESENTATIONS REGARDING THE USE OF, OR THE RESULTS
        !            26:  * OF THE USE OF THIS SOFTWARE IN TERMS OF ITS CORRECTNESS, ACCURACY,
        !            27:  * RELIABILITY OR OTHERWISE.  IN NO EVENT SHALL PACKET DESIGN BE
        !            28:  * LIABLE FOR ANY DAMAGES RESULTING FROM OR ARISING OUT OF ANY USE
        !            29:  * OF THIS SOFTWARE, INCLUDING WITHOUT LIMITATION, ANY DIRECT,
        !            30:  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, PUNITIVE, OR CONSEQUENTIAL
        !            31:  * DAMAGES, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, LOSS OF
        !            32:  * USE, DATA OR PROFITS, HOWEVER CAUSED AND UNDER ANY THEORY OF
        !            33:  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
        !            34:  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
        !            35:  * THE USE OF THIS SOFTWARE, EVEN IF PACKET DESIGN IS ADVISED OF
        !            36:  * THE POSSIBILITY OF SUCH DAMAGE.
        !            37:  *
        !            38:  * Author: Archie Cobbs <archie@freebsd.org>
        !            39:  */
        !            40: 
        !            41: #include <sys/types.h>
        !            42: 
        !            43: #include <netinet/in.h>
        !            44: 
        !            45: #include <stdio.h>
        !            46: #include <assert.h>
        !            47: #include <syslog.h>
        !            48: #include <stdarg.h>
        !            49: 
        !            50: #include "structs/structs.h"
        !            51: #include "structs/type/array.h"
        !            52: #include "util/typed_mem.h"
        !            53: #include "config/app_config.h"
        !            54: #include "sys/alog.h"
        !            55: 
        !            56: /************************************************************************
        !            57:                        ALOG LOGGING SUBSYSTEM
        !            58: ************************************************************************/
        !            59: 
        !            60: static app_ss_startup_t                app_alog_start;
        !            61: static app_ss_shutdown_t       app_alog_shutdown;
        !            62: static app_ss_willrun_t                app_alog_willrun;
        !            63: static app_ss_changed_t                app_alog_changed;
        !            64: 
        !            65: const struct app_subsystem     app_config_alog_subsystem = {
        !            66:        "alog",
        !            67:        NULL,
        !            68:        app_alog_start,
        !            69:        app_alog_shutdown,
        !            70:        app_alog_willrun,
        !            71:        app_alog_changed,
        !            72:        NULL
        !            73: };
        !            74: 
        !            75: /*
        !            76:  * Alog startup
        !            77:  */
        !            78: static int
        !            79: app_alog_start(struct app_config_ctx *ctx,
        !            80:        const struct app_subsystem *ss, const void *config)
        !            81: {
        !            82:        const struct app_config_alog_info *const info = ss->arg;
        !            83:        struct alog_config aconf;
        !            84: 
        !            85:        /* Get alog config */
        !            86:        if (structs_get(app_config_get_type(ctx),
        !            87:            info->name, config, &aconf) == -1) {
        !            88:                alogf(LOG_ERR, "%s: %m", "structs_get");
        !            89:                return (-1);
        !            90:        }
        !            91: 
        !            92:        /* Start up alog channel */
        !            93:        if (alog_configure(info->channel, &aconf) == -1) {
        !            94:                alog(LOG_ERR, "error configuring logging: %m");
        !            95:                structs_free(&alog_config_type, NULL, &aconf);
        !            96:                return (-1);
        !            97:        }
        !            98:        structs_free(&alog_config_type, NULL, &aconf);
        !            99:        return (0);
        !           100: }
        !           101: 
        !           102: /*
        !           103:  * Alog shutdown
        !           104:  */
        !           105: static void
        !           106: app_alog_shutdown(struct app_config_ctx *ctx,
        !           107:        const struct app_subsystem *ss, const void *config)
        !           108: {
        !           109:        const struct app_config_alog_info *const info = ss->arg;
        !           110: 
        !           111:        alog_shutdown(info->channel);
        !           112: }
        !           113: 
        !           114: /*
        !           115:  * Alog necessity check
        !           116:  */
        !           117: static int
        !           118: app_alog_willrun(struct app_config_ctx *ctx,
        !           119:        const struct app_subsystem *ss, const void *config)
        !           120: {
        !           121:        const struct app_config_alog_info *const info = ss->arg;
        !           122: 
        !           123:        (void)info;                             /* avoid compiler warning */
        !           124:        assert(info->name != NULL);
        !           125:        return (1);
        !           126: }
        !           127: 
        !           128: /*
        !           129:  * Alog configuration changed check
        !           130:  */
        !           131: static int
        !           132: app_alog_changed(struct app_config_ctx *ctx,
        !           133:        const struct app_subsystem *ss,
        !           134:        const void *config1, const void *config2)
        !           135: {
        !           136:        const struct app_config_alog_info *const info = ss->arg;
        !           137:        int ret;
        !           138: 
        !           139:        /* Compare configs */
        !           140:        if ((ret = structs_equal(app_config_get_type(ctx),
        !           141:            info->name, config1, config2)) == -1) {
        !           142:                alogf(LOG_ERR, "%s: %m", "structs_equal");
        !           143:                return (-1);
        !           144:        }
        !           145:        return (!ret);
        !           146: }
        !           147: