Imported Upstream version 2.4.3

server/desc.c

@@ -0,0 +1,165 @@
+/* desc.c - variable/command description handling for upsd
+
+   Copyright (C) 2003  Russell Kroll <rkroll@exploits.org>
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+*/
+
+#include <string.h>
+
+#include "common.h"
+#include "parseconf.h"
+
+#include "desc.h"
+
+extern const char *datapath;
+
+struct dlist_t {
+	char	*name;
+	char	*desc;
+	struct	dlist_t	*next;
+};
+
+	static	struct	dlist_t	*cmd_list = NULL, *var_list = NULL;
+
+static void list_free(struct dlist_t *ptr)
+{
+	struct	dlist_t	*next;
+
+	while (ptr) {
+		next = ptr->next;
+
+		free(ptr->name);
+		free(ptr->desc);
+		free(ptr);
+
+		ptr = next;
+	}
+}
+
+static const char *list_get(const struct dlist_t *list, const char *name)
+{
+	const	struct	dlist_t	*tmp;
+
+	tmp = list;
+
+	while (tmp) {
+		if (!strcasecmp(tmp->name, name))
+			return tmp->desc;
+
+		tmp = tmp->next;
+	}
+
+	return NULL;
+}
+
+static void desc_add(struct dlist_t **list, const char *name, const char *desc)
+{
+	struct	dlist_t	*tmp, *last;
+
+	tmp = last = *list;
+
+	while (tmp) {
+		last = tmp;
+
+		/* replace duplicates */
+		if (!strcasecmp(tmp->name, name)) {
+			free(tmp->desc);
+			tmp->desc = xstrdup(desc);
+			return;
+		}
+
+		tmp = tmp->next;
+	}
+
+	tmp = xmalloc(sizeof(struct dlist_t));
+
+	tmp->name = xstrdup(name);
+	tmp->desc = xstrdup(desc);
+	tmp->next = NULL;
+
+	if (last)
+		last->next = tmp;
+	else
+		*list = tmp;
+}
+
+static void desc_file_err(const char *errmsg)
+{
+	upslogx(LOG_ERR, "Fatal error in parseconf (cmdvartab): %s", errmsg);
+}
+
+/* interface */
+
+void desc_load(void)
+{
+	char	fn[SMALLBUF];
+	PCONF_CTX_t	ctx;
+
+	snprintf(fn, sizeof(fn), "%s/cmdvartab", datapath);
+
+	pconf_init(&ctx, desc_file_err);
+
+	/* this file is not required */
+	if (!pconf_file_begin(&ctx, fn)) {
+		upslogx(LOG_INFO, "%s not found - disabling descriptions", fn);
+		pconf_finish(&ctx);
+		return;
+	}
+
+	while (pconf_file_next(&ctx)) {
+		if (pconf_parse_error(&ctx)) {
+			upslogx(LOG_ERR, "Parse error: %s:%d: %s",
+				fn, ctx.linenum, ctx.errmsg);
+
+			continue;
+		}
+			
+		if (ctx.numargs < 3)
+			continue;
+
+		if (!strcmp(ctx.arglist[0], "CMDDESC")) {
+			desc_add(&cmd_list, ctx.arglist[1], ctx.arglist[2]);
+			continue;
+		}
+
+		if (!strcmp(ctx.arglist[0], "VARDESC")) {
+			desc_add(&var_list, ctx.arglist[1], ctx.arglist[2]);
+			continue;
+		}
+
+		/* unknown */
+	}
+
+	pconf_finish(&ctx);
+}
+
+void desc_free(void)
+{
+	list_free(cmd_list);
+	list_free(var_list);
+
+	cmd_list = var_list = NULL;
+}
+
+const char *desc_get_cmd(const char *name)
+{
+	return list_get(cmd_list, name);
+}
+
+const char *desc_get_var(const char *name)
+{
+	return list_get(var_list, name);
+}