src/bnetd/topic.c

/*
 * 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.
 */
#define TOPIC_INTERNAL_ACCESS
#include "common/setup_before.h"
#include <stdio.h>
#ifdef HAVE_STDDEF_H
# include <stddef.h>
#else
# ifndef NULL
#  define NULL ((void *)0)
# endif
#endif
#ifdef STDC_HEADERS
# include <stdlib.h>
#else
# ifdef HAVE_MALLOC_H
#  include <malloc.h>
# endif
#endif
#ifdef HAVE_STRING_H
# include <string.h>
#else
# ifdef HAVE_STRINGS_H
#  include <strings.h>
# endif
#endif
#include "compat/strrchr.h"
#include "compat/strdup.h"
#include "compat/strcasecmp.h"
#include "compat/pdir.h"
#include <errno.h>
#include "compat/strerror.h"
#ifdef TIME_WITH_SYS_TIME
# include <sys/time.h>
# include <time.h>
#else
# ifdef HAVE_SYS_TIME_H
#  include <sys/time.h>
# else
#  include <time.h>
# endif
#endif
#ifdef HAVE_SYS_TYPES_H
# include <sys/types.h>
#endif
#include "common/eventlog.h"
#include "common/list.h"
#include "common/field_sizes.h"
#include "common/xalloc.h"
#include "prefs.h"
#include "topic.h"
#include "common/setup_after.h"

static t_list * topiclist_head=NULL;

t_topic * get_topic(char const * channel_name)
{
  t_elem  * curr;
  t_topic * topic;

  if (topiclist_head)
  {
    LIST_TRAVERSE(topiclist_head,curr)
    {
      if (!(topic = elem_get_data(curr)))
      {
        eventlog(eventlog_level_error,__FUNCTION__,"found NULL entry in list");
        continue;
      }
      if (strcasecmp(channel_name,topic->channel_name)==0) return topic;
    }
  }
  return NULL;
}

char * channel_get_topic(char const * channel_name)
{
  t_topic * topic;

  if (!(topic = get_topic(channel_name)))
    return NULL;
  else
    return topic->topic;
}

int topiclist_save(char const * topic_file)
{
  t_elem  * curr;
  t_topic * topic;
  FILE * fp;

  if (topiclist_head)
  {

    if ((fp = fopen(topic_file,"w"))==NULL) 
    {
      eventlog(eventlog_level_error, __FUNCTION__,"can't open topic file");
      return -1;
    }

    LIST_TRAVERSE(topiclist_head,curr)
    {
      if (!(topic = elem_get_data(curr)))
      {
        eventlog(eventlog_level_error,__FUNCTION__,"found NULL entry in list");
        continue;
      }
      if (topic->save == DO_SAVE_TOPIC) 
        fprintf(fp,"\"%s\",\"%s\"\n",topic->channel_name,topic->topic);
    }

    fclose(fp);
  }

  return 0;
}

int topiclist_add_topic(char const * channel_name, char const * topic_text, int do_save)
{
  t_topic * topic;
  
  topic = xmalloc(sizeof(t_topic));
  topic->channel_name = xstrdup(channel_name);
  topic->topic = xstrdup(topic_text);
  list_prepend_data(topiclist_head,topic);
  topic->save = do_save;
  return 0;
}

int channel_set_topic(char const * channel_name, char const * topic_text, int do_save)
{
  t_topic * topic;

  if (!(channel_name))
  {
    eventlog(eventlog_level_error,__FUNCTION__,"got NULL channel_name");
    return -1;
  }

  if (!(topic_text))
  {
    eventlog(eventlog_level_error,__FUNCTION__,"got NULL topic");
    return -1;
  }

  if ((topic = get_topic(channel_name)))
  {
    xfree((void *)topic->topic);
    topic->topic = xstrdup(topic_text);
  }
  else
  {
    topiclist_add_topic(channel_name, topic_text,do_save);
  }

  if (do_save == DO_SAVE_TOPIC)
  {
    if (topiclist_save(prefs_get_topicfile())<0)
    {
      eventlog(eventlog_level_error,__FUNCTION__,"error saving topic list");
      return -1;
    }
  }

  return 0;
}

int topiclist_load(char const * topicfile)
{
  FILE * fp;
  char channel_name[CHANNEL_NAME_LEN];
  char topic[MAX_TOPIC_LEN];

  // make sure to unload previous topiclist before loading again
  if (topiclist_head) topiclist_unload();

  if ((fp = fopen(topicfile,"r"))==NULL) 
  {
    eventlog(eventlog_level_error, __FUNCTION__,"can't open topic file");
    return -1;
  }
  
  topiclist_head = list_create();
  
  eventlog(eventlog_level_trace,__FUNCTION__,"start reading topic file");

  while (fscanf(fp,"\"%[^\"]\",\"%[^\"]\"\n",channel_name,topic)==2)
  {
    topiclist_add_topic(channel_name,topic,DO_SAVE_TOPIC);
    eventlog(eventlog_level_trace,__FUNCTION__,"channel: %s topic: \"%s\"",channel_name,topic);
  }

  eventlog(eventlog_level_trace,__FUNCTION__,"finished reading topic file");

  fclose(fp);
  return 0;
}

int topiclist_unload(void)
{
  t_elem  * curr;
  t_topic * topic;

  if (topiclist_head)
  {
    LIST_TRAVERSE(topiclist_head,curr)
    {
      if (!(topic = elem_get_data(curr)))
      {
        eventlog(eventlog_level_error,__FUNCTION__,"found NULL entry in list");
        continue;
      }

      if (topic->channel_name) xfree((void *)topic->channel_name);
      if (topic->topic) xfree((void *)topic->topic);
      xfree((void *)topic);
      list_remove_elem(topiclist_head,&curr);
    }
    if (list_destroy(topiclist_head)<0)
      return -1;

    topiclist_head = NULL;
  }
  return 0;
}
1	/*
2	* This program is free software; you can redistribute it and/or
3	* modify it under the terms of the GNU General Public License
4	* as published by the Free Software Foundation; either version 2
5	* of the License, or (at your option) any later version.
6	*
7	* This program is distributed in the hope that it will be useful,
8	* but WITHOUT ANY WARRANTY; without even the implied warranty of
9	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
10	* GNU General Public License for more details.
11	*
12	* You should have received a copy of the GNU General Public License
13	* along with this program; if not, write to the Free Software
14	* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
15	*/
16	#define TOPIC_INTERNAL_ACCESS
17	#include "common/setup_before.h"
18	#include <stdio.h>
19	#ifdef HAVE_STDDEF_H
20	# include <stddef.h>
21	#else
22	# ifndef NULL
23	# define NULL ((void *)0)
24	# endif
25	#endif
26	#ifdef STDC_HEADERS
27	# include <stdlib.h>
28	#else
29	# ifdef HAVE_MALLOC_H
30	# include <malloc.h>
31	# endif
32	#endif
33	#ifdef HAVE_STRING_H
34	# include <string.h>
35	#else
36	# ifdef HAVE_STRINGS_H
37	# include <strings.h>
38	# endif
39	#endif
40	#include "compat/strrchr.h"
41	#include "compat/strdup.h"
42	#include "compat/strcasecmp.h"
43	#include "compat/pdir.h"
44	#include <errno.h>
45	#include "compat/strerror.h"
46	#ifdef TIME_WITH_SYS_TIME
47	# include <sys/time.h>
48	# include <time.h>
49	#else
50	# ifdef HAVE_SYS_TIME_H
51	# include <sys/time.h>
52	# else
53	# include <time.h>
54	# endif
55	#endif
56	#ifdef HAVE_SYS_TYPES_H
57	# include <sys/types.h>
58	#endif
59	#include "common/eventlog.h"
60	#include "common/list.h"
61	#include "common/field_sizes.h"
62	#include "common/xalloc.h"
63	#include "prefs.h"
64	#include "topic.h"
65	#include "common/setup_after.h"
66
67	static t_list * topiclist_head=NULL;
68
69	t_topic * get_topic(char const * channel_name)
70	{
71	t_elem * curr;
72	t_topic * topic;
73
74	if (topiclist_head)
75	{
76	LIST_TRAVERSE(topiclist_head,curr)
77	{
78	if (!(topic = elem_get_data(curr)))
79	{
80	eventlog(eventlog_level_error,__FUNCTION__,"found NULL entry in list");
81	continue;
82	}
83	if (strcasecmp(channel_name,topic->channel_name)==0) return topic;
84	}
85	}
86	return NULL;
87	}
88
89	char * channel_get_topic(char const * channel_name)
90	{
91	t_topic * topic;
92
93	if (!(topic = get_topic(channel_name)))
94	return NULL;
95	else
96	return topic->topic;
97	}
98
99	int topiclist_save(char const * topic_file)
100	{
101	t_elem * curr;
102	t_topic * topic;
103	FILE * fp;
104
105	if (topiclist_head)
106	{
107
108	if ((fp = fopen(topic_file,"w"))==NULL)
109	{
110	eventlog(eventlog_level_error, __FUNCTION__,"can't open topic file");
111	return -1;
112	}
113
114	LIST_TRAVERSE(topiclist_head,curr)
115	{
116	if (!(topic = elem_get_data(curr)))
117	{
118	eventlog(eventlog_level_error,__FUNCTION__,"found NULL entry in list");
119	continue;
120	}
121	if (topic->save == DO_SAVE_TOPIC)
122	fprintf(fp,"\"%s\",\"%s\"\n",topic->channel_name,topic->topic);
123	}
124
125	fclose(fp);
126	}
127
128	return 0;
129	}
130
131	int topiclist_add_topic(char const * channel_name, char const * topic_text, int do_save)
132	{
133	t_topic * topic;
134
135	topic = xmalloc(sizeof(t_topic));
136	topic->channel_name = xstrdup(channel_name);
137	topic->topic = xstrdup(topic_text);
138	list_prepend_data(topiclist_head,topic);
139	topic->save = do_save;
140	return 0;
141	}
142
143	int channel_set_topic(char const * channel_name, char const * topic_text, int do_save)
144	{
145	t_topic * topic;
146
147	if (!(channel_name))
148	{
149	eventlog(eventlog_level_error,__FUNCTION__,"got NULL channel_name");
150	return -1;
151	}
152
153	if (!(topic_text))
154	{
155	eventlog(eventlog_level_error,__FUNCTION__,"got NULL topic");
156	return -1;
157	}
158
159	if ((topic = get_topic(channel_name)))
160	{
161	xfree((void *)topic->topic);
162	topic->topic = xstrdup(topic_text);
163	}
164	else
165	{
166	topiclist_add_topic(channel_name, topic_text,do_save);
167	}
168
169	if (do_save == DO_SAVE_TOPIC)
170	{
171	if (topiclist_save(prefs_get_topicfile())<0)
172	{
173	eventlog(eventlog_level_error,__FUNCTION__,"error saving topic list");
174	return -1;
175	}
176	}
177
178	return 0;
179	}
180
181	int topiclist_load(char const * topicfile)
182	{
183	FILE * fp;
184	char channel_name[CHANNEL_NAME_LEN];
185	char topic[MAX_TOPIC_LEN];
186
187	// make sure to unload previous topiclist before loading again
188	if (topiclist_head) topiclist_unload();
189
190	if ((fp = fopen(topicfile,"r"))==NULL)
191	{
192	eventlog(eventlog_level_error, __FUNCTION__,"can't open topic file");
193	return -1;
194	}
195
196	topiclist_head = list_create();
197
198	eventlog(eventlog_level_trace,__FUNCTION__,"start reading topic file");
199
200	while (fscanf(fp,"\"%[^\"]\",\"%[^\"]\"\n",channel_name,topic)==2)
201	{
202	topiclist_add_topic(channel_name,topic,DO_SAVE_TOPIC);
203	eventlog(eventlog_level_trace,__FUNCTION__,"channel: %s topic: \"%s\"",channel_name,topic);
204	}
205
206	eventlog(eventlog_level_trace,__FUNCTION__,"finished reading topic file");
207
208	fclose(fp);
209	return 0;
210	}
211
212	int topiclist_unload(void)
213	{
214	t_elem * curr;
215	t_topic * topic;
216
217	if (topiclist_head)
218	{
219	LIST_TRAVERSE(topiclist_head,curr)
220	{
221	if (!(topic = elem_get_data(curr)))
222	{
223	eventlog(eventlog_level_error,__FUNCTION__,"found NULL entry in list");
224	continue;
225	}
226
227	if (topic->channel_name) xfree((void *)topic->channel_name);
228	if (topic->topic) xfree((void *)topic->topic);
229	xfree((void *)topic);
230	list_remove_elem(topiclist_head,&curr);
231	}
232	if (list_destroy(topiclist_head)<0)
233	return -1;
234
235	topiclist_head = NULL;
236	}
237	return 0;
238	}
webmaster@leafok.com	ViewVC Help
Powered by ViewVC 1.3.0-beta1