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