src/bnetd/command_groups.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 COMMAND_GROUPS_INTERNAL_ACCESS
#include "common/setup_before.h"
#include <math.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 <errno.h>
#include "common/eventlog.h"
#include "common/list.h"
#include "compat/strerror.h"
#include "prefs.h"
#include "common/util.h"
#include "common/xalloc.h"
#include "command_groups.h"
#include "common/setup_after.h"

//#define COMMANDGROUPSDEBUG 1

static t_list * command_groups_head=NULL;
static FILE * fp = NULL;

extern int command_groups_load(char const * filename)
{
    unsigned int        line;
    unsigned int        pos;
    char *              buff;
    char *              temp;
    char const *        command;
    unsigned int        group;
    t_command_groups *  entry;
    
    if (!filename) {
        eventlog(eventlog_level_error,__FUNCTION__,"got NULL filename");
        return -1;
    }
    if (!(fp = fopen(filename,"r"))) {
        eventlog(eventlog_level_error,__FUNCTION__,"could not open file \"%s\" for reading (fopen: %s)",filename,pstrerror(errno));
        return -1;
    }
    
    command_groups_head = list_create();
    
    for (line=1; (buff = file_get_line(fp)); line++) {
        for (pos=0; buff[pos]=='\t' || buff[pos]==' '; pos++);
        if (buff[pos]=='\0' || buff[pos]=='#') {
            continue;
        }
        if ((temp = strrchr(buff,'#'))) {
            unsigned int len;
            unsigned int endpos;
            
            *temp = '\0';
            len = strlen(buff)+1;
            for (endpos=len-1; buff[endpos]=='\t' || buff[endpos]==' '; endpos--);
            buff[endpos+1] = '\0';
        }
        if (!(temp = strtok(buff," \t"))) { /* strtok modifies the string it is passed */
            eventlog(eventlog_level_error,__FUNCTION__,"missing group on line %u of file \"%s\"",line,filename);
            continue;
        }
        if (str_to_uint(temp,&group)<0) {
            eventlog(eventlog_level_error,__FUNCTION__,"group '%s' not a valid group (1-8)",temp);
            continue;
        }
        if (group == 0 || group > 8) {
            eventlog(eventlog_level_error,__FUNCTION__,"group '%u' not within groups limits (1-8)",group);
            continue;
        } 
        while ((command = strtok(NULL," \t"))) {
            entry = xmalloc(sizeof(t_command_groups));
            entry->group = 1 << (group-1);
            entry->command = xstrdup(command);
            list_append_data(command_groups_head,entry);
#ifdef COMMANDGROUPSDEBUG
            eventlog(eventlog_level_info,__FUNCTION__,"Added command: %s - with group %u",entry->command,entry->group);
#endif
        }
    }
    file_get_line(NULL); // clear file_get_line buffer
    fclose(fp);
    return 0;
}

extern int command_groups_unload(void)
{
    t_elem *            curr;
    t_command_groups *  entry;
    
    if (command_groups_head) {
        LIST_TRAVERSE(command_groups_head,curr) {
            if (!(entry = elem_get_data(curr)))
                eventlog(eventlog_level_error,__FUNCTION__,"found NULL entry in list");
            else {
                xfree(entry->command);
                xfree(entry);
            }
            list_remove_elem(command_groups_head,&curr);
        }
        list_destroy(command_groups_head);
        command_groups_head = NULL;
    }
    return 0;
}

extern unsigned int command_get_group(char const * command)
{
    t_elem const *      curr;
    t_command_groups *  entry;

    if (command_groups_head) {
        LIST_TRAVERSE(command_groups_head,curr) {
            if (!(entry = elem_get_data(curr)))
                eventlog(eventlog_level_error,__FUNCTION__,"found NULL entry in list");
            else if (!(strcmp(entry->command,command)))
                return entry->group;
        }
    }
    return 0;
}

extern int command_groups_reload(char const * filename)
{
    command_groups_unload();
    return command_groups_load(filename);
}
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 COMMAND_GROUPS_INTERNAL_ACCESS
17	#include "common/setup_before.h"
18	#include <math.h>
19	#include <stdio.h>
20	#ifdef HAVE_STDDEF_H
21	# include <stddef.h>
22	#else
23	# ifndef NULL
24	# define NULL ((void *)0)
25	# endif
26	#endif
27	#ifdef STDC_HEADERS
28	# include <stdlib.h>
29	#else
30	# ifdef HAVE_MALLOC_H
31	# include <malloc.h>
32	# endif
33	#endif
34	#ifdef HAVE_STRING_H
35	# include <string.h>
36	#else
37	# ifdef HAVE_STRINGS_H
38	# include <strings.h>
39	# endif
40	#endif
41	#include <errno.h>
42	#include "common/eventlog.h"
43	#include "common/list.h"
44	#include "compat/strerror.h"
45	#include "prefs.h"
46	#include "common/util.h"
47	#include "common/xalloc.h"
48	#include "command_groups.h"
49	#include "common/setup_after.h"
50
51	//#define COMMANDGROUPSDEBUG 1
52
53	static t_list * command_groups_head=NULL;
54	static FILE * fp = NULL;
55
56	extern int command_groups_load(char const * filename)
57	{
58	unsigned int line;
59	unsigned int pos;
60	char * buff;
61	char * temp;
62	char const * command;
63	unsigned int group;
64	t_command_groups * entry;
65
66	if (!filename) {
67	eventlog(eventlog_level_error,__FUNCTION__,"got NULL filename");
68	return -1;
69	}
70	if (!(fp = fopen(filename,"r"))) {
71	eventlog(eventlog_level_error,__FUNCTION__,"could not open file \"%s\" for reading (fopen: %s)",filename,pstrerror(errno));
72	return -1;
73	}
74
75	command_groups_head = list_create();
76
77	for (line=1; (buff = file_get_line(fp)); line++) {
78	for (pos=0; buff[pos]=='\t' \|\| buff[pos]==' '; pos++);
79	if (buff[pos]=='\0' \|\| buff[pos]=='#') {
80	continue;
81	}
82	if ((temp = strrchr(buff,'#'))) {
83	unsigned int len;
84	unsigned int endpos;
85
86	*temp = '\0';
87	len = strlen(buff)+1;
88	for (endpos=len-1; buff[endpos]=='\t' \|\| buff[endpos]==' '; endpos--);
89	buff[endpos+1] = '\0';
90	}
91	if (!(temp = strtok(buff," \t"))) { /* strtok modifies the string it is passed */
92	eventlog(eventlog_level_error,__FUNCTION__,"missing group on line %u of file \"%s\"",line,filename);
93	continue;
94	}
95	if (str_to_uint(temp,&group)<0) {
96	eventlog(eventlog_level_error,__FUNCTION__,"group '%s' not a valid group (1-8)",temp);
97	continue;
98	}
99	if (group == 0 \|\| group > 8) {
100	eventlog(eventlog_level_error,__FUNCTION__,"group '%u' not within groups limits (1-8)",group);
101	continue;
102	}
103	while ((command = strtok(NULL," \t"))) {
104	entry = xmalloc(sizeof(t_command_groups));
105	entry->group = 1 << (group-1);
106	entry->command = xstrdup(command);
107	list_append_data(command_groups_head,entry);
108	#ifdef COMMANDGROUPSDEBUG
109	eventlog(eventlog_level_info,__FUNCTION__,"Added command: %s - with group %u",entry->command,entry->group);
110	#endif
111	}
112	}
113	file_get_line(NULL); // clear file_get_line buffer
114	fclose(fp);
115	return 0;
116	}
117
118	extern int command_groups_unload(void)
119	{
120	t_elem * curr;
121	t_command_groups * entry;
122
123	if (command_groups_head) {
124	LIST_TRAVERSE(command_groups_head,curr) {
125	if (!(entry = elem_get_data(curr)))
126	eventlog(eventlog_level_error,__FUNCTION__,"found NULL entry in list");
127	else {
128	xfree(entry->command);
129	xfree(entry);
130	}
131	list_remove_elem(command_groups_head,&curr);
132	}
133	list_destroy(command_groups_head);
134	command_groups_head = NULL;
135	}
136	return 0;
137	}
138
139	extern unsigned int command_get_group(char const * command)
140	{
141	t_elem const * curr;
142	t_command_groups * entry;
143
144	if (command_groups_head) {
145	LIST_TRAVERSE(command_groups_head,curr) {
146	if (!(entry = elem_get_data(curr)))
147	eventlog(eventlog_level_error,__FUNCTION__,"found NULL entry in list");
148	else if (!(strcmp(entry->command,command)))
149	return entry->group;
150	}
151	}
152	return 0;
153	}
154
155	extern int command_groups_reload(char const * filename)
156	{
157	command_groups_unload();
158	return command_groups_load(filename);
159	}
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