Index: ossp-pkg/l2/l2_ch_var.c
RCS File: /v/ossp/cvs/ossp-pkg/l2/Attic/l2_ch_var.c,v
co -q -kk -p'1.1' '/v/ossp/cvs/ossp-pkg/l2/Attic/l2_ch_var.c,v' | diff -u /dev/null - -L'ossp-pkg/l2/l2_ch_var.c' 2>/dev/null
--- ossp-pkg/l2/l2_ch_var.c
+++ -	2024-05-07 19:40:39.304273313 +0200
@@ -0,0 +1,120 @@
+/*
+**  L2 - OSSP Logging Library
+**  Copyright (c) 2001-2002 The OSSP Project (http://www.ossp.org/)
+**  Copyright (c) 2001-2002 Cable & Wireless Deutschland (http://www.cw.com/de/)
+**
+**  This file is part of OSSP L2, a flexible logging library which
+**  can be found at http://www.ossp.org/pkg/l2/.
+**
+**  Permission to use, copy, modify, and distribute this software for
+**  any purpose with or without fee is hereby granted, provided that
+**  the above copyright notice and this permission notice appear in all
+**  copies.
+**
+**  THIS SOFTWARE IS PROVIDED ``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 AUTHORS AND COPYRIGHT HOLDERS AND THEIR
+**  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.
+**
+**  l2_ch_var.c: OSSP var channel implementation
+*/
+
+#include "l2.h"
+/*#include "l2_var.h"*/
+
+/* declare private channel configuration */
+typedef struct {
+    char *vardef;
+} l2_ch_var_t;
+
+/* create channel */
+static l2_result_t hook_create(l2_context_t *ctx, l2_channel_t *ch)
+{
+    l2_ch_var_t *cfg;
+
+    /* allocate private channel configuration */
+    if ((cfg = (l2_ch_var_t *)malloc(sizeof(l2_ch_var_t))) == NULL)
+        return L2_ERR_MEM;
+
+    /* initialize configuration with reasonable defaults */
+    cfg->vardef = NULL; 
+
+    /* link private channel configuration into channel context */
+    ctx->vp = cfg;
+
+    return L2_OK;
+}
+
+/* configure channel */
+static l2_result_t hook_configure(l2_context_t *ctx, l2_channel_t *ch, const char *fmt, va_list ap)
+{
+    l2_ch_var_t *cfg;
+    l2_param_t pa[1]; 
+    l2_result_t rv;
+    l2_env_t *env;
+
+    /* parameter checks */
+    if ((cfg = (l2_ch_var_t *)ctx->vp) == NULL)
+        return L2_ERR_ARG;
+
+    /* feed and call generic parameter parsing engine */
+    L2_PARAM_SET(pa[0], variable, STR, &cfg->vardef);
+    L2_PARAM_END(pa[1]);
+    l2_channel_env(ch, &env);
+    rv = l2_util_setparams(env, pa, fmt, ap);
+
+    return rv;
+}
+
+/* write to channel */
+static l2_result_t hook_write(l2_context_t *ctx, l2_channel_t *ch,
+                              l2_level_t level, const char *buf, size_t buf_size)
+{
+    l2_ch_var_t *cfg;
+
+    /* parameter checks */
+    if ((cfg = (l2_ch_var_t *)ctx->vp) == NULL)
+        return L2_ERR_ARG;
+    if (cfg->vardef == NULL)
+        return L2_ERR_ARG;
+
+    /* expand variables */
+/* FIXME */
+
+    return L2_OK;
+}
+
+/* destroy channel */
+static l2_result_t hook_destroy(l2_context_t *ctx, l2_channel_t *ch)
+{
+    l2_ch_var_t *cfg = (l2_ch_var_t *)ctx->vp;
+
+    /* destroy channel configuration */
+    if (cfg->vardef != NULL)
+        free(cfg->vardef);
+    free(cfg);
+
+    return L2_OK;
+}
+
+/* exported channel handler structure */
+l2_handler_t l2_handler_var = {
+    "var",
+    L2_CHANNEL_FILTER,
+    hook_create,
+    hook_configure,
+    NULL,
+    hook_write,
+    NULL,
+    NULL,
+    hook_destroy
+};
+