extern int realmlist_reload(char const * filename)
{
t_elem * new_curr;
t_elem * old_curr;
t_realm * new_realm;
t_realm * old_realm;
int match;
t_list * newlist = NULL;
t_list * oldlist = realmlist_head;
realmlist_head = NULL;
if (!(newlist = realmlist_load(filename)))
return -1;
LIST_TRAVERSE(oldlist,old_curr)
{
if (!(old_realm = elem_get_data(old_curr)))
{
eventlog(eventlog_level_error,__FUNCTION__,"found NULL elem in list");
continue;
}
match = 0;
LIST_TRAVERSE(newlist,new_curr)
{
if (!(new_realm = elem_get_data(new_curr)))
{
eventlog(eventlog_level_error,__FUNCTION__,"found NULL elem in list");
continue;
}
if (!strcmp(old_realm->name,new_realm->name))
{
match = 1;
rcm_chref(&old_realm->rcm,new_realm);
break;
}
}
if (!match)
rcm_chref(&old_realm->rcm,NULL);
realm_destroy(old_realm);
list_remove_elem(oldlist,&old_curr);
}
list_destroy(oldlist);
realmlist_head = newlist;
realm_number = 0;
return 0;
}
extern int realmlist_unload(t_list * list_head)
{
t_elem * curr;
t_realm * realm;
if (list_head)
{
LIST_TRAVERSE(list_head,curr)
{
if (!(realm = elem_get_data(curr)))
eventlog(eventlog_level_error,__FUNCTION__,"found NULL realm in list");
else
realm_destroy(realm);
list_remove_elem(list_head,&curr);
}
list_destroy(list_head);
}
return 0;
}
extern int realmlist_destroy(void)
{
t_elem * curr;
t_realm * realm;
if (realmlist_head)
{
LIST_TRAVERSE(realmlist_head,curr)
{
if (!(realm = elem_get_data(curr)))
eventlog(eventlog_level_error,"realmlist_destroy","found NULL realm in list");
else
realm_destroy(realm);
list_remove_elem(realmlist_head,curr);
}
list_destroy(realmlist_head);
realmlist_head = NULL;
}
return 0;
}
extern int realmlist_create(char const * filename)
{
FILE * fp;
unsigned int line;
unsigned int pos;
unsigned int len;
t_addr * raddr;
char * temp;
char * buff;
char * name;
char * desc;
char * addr;
t_realm * realm;
if (!filename)
{
eventlog(eventlog_level_error,"realmlist_create","got NULL filename");
return -1;
}
if (!(realmlist_head = list_create()))
{
eventlog(eventlog_level_error,"realmlist_create","could not create list");
return -1;
}
if (!(fp = fopen(filename,"r")))
{
eventlog(eventlog_level_error,"realmlist_create","could not open realm file \"%s\" for reading (fopen: %s)",filename,strerror(errno));
list_destroy(realmlist_head);
realmlist_head = NULL;
return -1;
}
for (line=1; (buff = file_get_line(fp)); line++)
{
for (pos=0; buff[pos]=='\t' || buff[pos]==' '; pos++);
if (buff[pos]=='\0' || buff[pos]=='#')
{
free(buff);
continue;
}
if ((temp = strrchr(buff,'#')))
{
unsigned int endpos;
*temp = '\0';
len = strlen(buff)+1;
for (endpos=len-1; buff[endpos]=='\t' || buff[endpos]==' '; endpos--);
buff[endpos+1] = '\0';
}
len = strlen(buff)+1;
if (!(name = malloc(len)))
{
eventlog(eventlog_level_error,"realmlist_create","could not allocate memory for name");
free(buff);
continue;
}
if (!(desc = malloc(len)))
{
eventlog(eventlog_level_error,"realmlist_create","could not allocate memory for desc");
free(name);
free(buff);
continue;
}
if (!(addr = malloc(len)))
{
eventlog(eventlog_level_error,"realmlist_create","could not allocate memory for desc");
free(desc);
free(name);
free(buff);
continue;
}
if (sscanf(buff," \"%[^\"]\" \"%[^\"]\" %s",name,desc,addr)!=3)
{
if (sscanf(buff," \"%[^\"]\" \"\" %s",name,addr)==2)
desc[0] = '\0';
else
{
eventlog(eventlog_level_error,"realmlist_create","malformed line %u in file \"%s\"",line,filename);
free(addr);
free(desc);
free(name);
free(buff);
continue;
}
}
free(buff);
if (!(raddr = addr_create_str(addr,0,BNETD_REALM_PORT))) /* 0 means "this computer" */
{
eventlog(eventlog_level_error,"realmlist_create","invalid address value for field 3 on line %u in file \"%s\"",line,filename);
free(addr);
free(desc);
free(name);
continue;
}
free(addr);
if (!(realm = realm_create(name,desc,addr_get_ip(raddr),addr_get_port(raddr))))
{
eventlog(eventlog_level_error,"realmlist_create","could not create realm");
addr_destroy(raddr);
free(desc);
free(name);
continue;
}
addr_destroy(raddr);
free(desc);
free(name);
if (list_prepend_data(realmlist_head,realm)<0)
{
eventlog(eventlog_level_error,"realmlist_create","could not prepend realm");
realm_destroy(realm);
continue;
}
}
if (fclose(fp)<0)
eventlog(eventlog_level_error,"realmlist_create","could not close realm file \"%s\" after reading (fclose: %s)",filename,strerror(errno));
return 0;
}