2 * $Id: db_param.c,v 1.9 2009-11-23 19:04:14 franklahm Exp $
4 * Copyright (C) Joerg Lenneis 2003
5 * Copyright (c) Frank Lahm 2009
6 * All Rights Reserved. See COPYING.
11 #endif /* HAVE_CONFIG_H */
18 #include <sys/param.h>
20 #include <sys/select.h>
21 #include <atalk/logger.h>
25 #define DB_PARAM_FN "db_param"
28 static struct db_param params;
31 static size_t usock_maxlen(void)
33 struct sockaddr_un addr;
34 return sizeof(addr.sun_path) - 1;
37 static int make_pathname(char *path, char *dir, char *fn, size_t maxlen)
43 if (len + 1 + strlen(fn) > maxlen)
46 if (path[len - 1] != '/')
50 if (strlen(fn) > maxlen)
57 static void default_params(struct db_param *dbp, char *dir)
59 dbp->logfile_autoremove = DEFAULT_LOGFILE_AUTOREMOVE;
60 dbp->cachesize = DEFAULT_CACHESIZE;
61 dbp->maxlocks = DEFAULT_MAXLOCKS;
62 dbp->maxlockobjs = DEFAULT_MAXLOCKOBJS;
63 dbp->flush_frequency = DEFAULT_FLUSH_FREQUENCY;
64 dbp->flush_interval = DEFAULT_FLUSH_INTERVAL;
65 if (make_pathname(dbp->usock_file, dir, DEFAULT_USOCK_FILE, usock_maxlen()) < 0) {
66 /* Not an error yet, it might be set in the config file */
67 dbp->usock_file[0] = '\0';
69 dbp->fd_table_size = DEFAULT_FD_TABLE_SIZE;
70 if ( dbp->fd_table_size > FD_SETSIZE -1)
71 dbp->fd_table_size = FD_SETSIZE -1;
72 dbp->idle_timeout = DEFAULT_IDLE_TIMEOUT;
77 static int parse_int(char *val)
82 result = strtol(val, &tmp, 10);
84 LOG(log_error, logtype_cnid, "invalid characters in token %s", val);
91 /* TODO: This configuration file reading routine is neither very robust (%s
92 buffer overflow) nor elegant, we need to add support for whitespace in
95 struct db_param *db_param_read(char *dir)
98 static char key[MAXKEYLEN + 1];
99 static char val[MAXPATHLEN + 1];
100 static char pfn[MAXPATHLEN + 1];
103 default_params(¶ms, dir);
106 if (make_pathname(pfn, dir, DB_PARAM_FN, MAXPATHLEN) < 0) {
107 LOG(log_error, logtype_cnid, "Parameter filename too long");
111 if ((fp = fopen(pfn, "r")) == NULL) {
112 if (errno == ENOENT) {
113 if (strlen(params.usock_file) == 0) {
114 LOG(log_error, logtype_cnid, "default usock filename too long");
120 LOG(log_error, logtype_cnid, "error opening %s: %s", pfn, strerror(errno));
126 while ((items = fscanf(fp, " %s %s", key, val)) != EOF) {
128 LOG(log_error, logtype_cnid, "error parsing config file");
133 /* Config for both cnid_meta and dbd */
134 if (! strcmp(key, "usock_file")) {
135 if (make_pathname(params.usock_file, dir, val, usock_maxlen()) < 0) {
136 LOG(log_error, logtype_cnid, "usock filename %s too long", val);
139 LOG(log_info, logtype_cnid, "db_param: setting UNIX domain socket filename to %s", params.usock_file);
142 if (! strcmp(key, "fd_table_size")) {
143 params.fd_table_size = parse_int(val);
144 LOG(log_info, logtype_cnid, "db_param: setting max number of concurrent afpd connections per volume (fd_table_size) to %d", params.fd_table_size);
145 } else if (! strcmp(key, "logfile_autoremove")) {
146 params.logfile_autoremove = parse_int(val);
147 LOG(log_info, logtype_cnid, "db_param: setting logfile_autoremove to %d", params.logfile_autoremove);
148 } else if (! strcmp(key, "cachesize")) {
149 params.cachesize = parse_int(val);
150 LOG(log_info, logtype_cnid, "db_param: setting cachesize to %d", params.cachesize);
151 } else if (! strcmp(key, "maxlocks")) {
152 params.maxlocks = parse_int(val);
153 LOG(log_info, logtype_cnid, "db_param: setting maxlocks to %d", params.maxlocks);
154 } else if (! strcmp(key, "maxlockobjs")) {
155 params.maxlockobjs = parse_int(val);
156 LOG(log_info, logtype_cnid, "db_param: setting maxlockobjs to %d", params.maxlockobjs);
157 } else if (! strcmp(key, "flush_frequency")) {
158 params.flush_frequency = parse_int(val);
159 LOG(log_info, logtype_cnid, "db_param: setting flush_frequency to %d", params.flush_frequency);
160 } else if (! strcmp(key, "flush_interval")) {
161 params.flush_interval = parse_int(val);
162 LOG(log_info, logtype_cnid, "db_param: setting flush_interval to %d", params.flush_interval);
163 } else if (! strcmp(key, "idle_timeout")) {
164 params.idle_timeout = parse_int(val);
165 LOG(log_info, logtype_cnid, "db_param: setting idle timeout to %d", params.idle_timeout);
172 if (strlen(params.usock_file) == 0) {
173 LOG(log_error, logtype_cnid, "default usock filename too long");
180 if (params.flush_frequency <= 0)
181 params.flush_frequency = 86400;
183 if (params.flush_interval <= 0)
184 params.flush_interval = 1000000;
186 if (params.fd_table_size <= 2)
187 params.fd_table_size = 32;
189 if (params.idle_timeout <= 0)
190 params.idle_timeout = 86400;