2 * $Id: db_param.c,v 1.5 2009-05-06 11:54:24 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 */
15 #endif /* HAVE_UNISTD_H */
22 #include <sys/param.h>
24 #include <atalk/logger.h>
28 #define DB_PARAM_FN "db_param"
31 #define DEFAULT_LOGFILE_AUTOREMOVE 1
32 #define DEFAULT_CACHESIZE 8 * 1024
33 #define DEFAULT_FLUSH_FREQUENCY 100
34 #define DEFAULT_FLUSH_INTERVAL 1800
35 #define DEFAULT_USOCK_FILE "usock"
36 #define DEFAULT_FD_TABLE_SIZE 128
37 #define DEFAULT_IDLE_TIMEOUT 10 * 60
39 static struct db_param params;
42 static size_t usock_maxlen()
44 struct sockaddr_un addr;
45 return sizeof(addr.sun_path) - 1;
48 static int make_pathname(char *path, char *dir, char *fn, size_t maxlen)
54 if (len + 1 + strlen(fn) > maxlen)
57 if (path[len - 1] != '/')
61 if (strlen(fn) > maxlen)
68 static void default_params(struct db_param *dbp, char *dir)
70 dbp->logfile_autoremove = DEFAULT_LOGFILE_AUTOREMOVE;
71 dbp->cachesize = DEFAULT_CACHESIZE;
72 dbp->flush_frequency = DEFAULT_FLUSH_FREQUENCY;
73 dbp->flush_interval = DEFAULT_FLUSH_INTERVAL;
74 if (make_pathname(dbp->usock_file, dir, DEFAULT_USOCK_FILE, usock_maxlen()) < 0) {
75 /* Not an error yet, it might be set in the config file */
76 dbp->usock_file[0] = '\0';
78 dbp->fd_table_size = DEFAULT_FD_TABLE_SIZE;
79 dbp->idle_timeout = DEFAULT_IDLE_TIMEOUT;
84 static int parse_int(char *val)
89 result = strtol(val, &tmp, 10);
91 LOG(log_error, logtype_cnid, "invalid characters in token %s", val);
98 /* TODO: This configuration file reading routine is neither very robust (%s
99 buffer overflow) nor elegant, we need to add support for whitespace in
100 filenames as well. */
102 struct db_param *db_param_read(char *dir, enum identity id)
105 static char key[MAXKEYLEN + 1];
106 static char val[MAXPATHLEN + 1];
107 static char pfn[MAXPATHLEN + 1];
110 default_params(¶ms, dir);
113 if (make_pathname(pfn, dir, DB_PARAM_FN, MAXPATHLEN) < 0) {
114 LOG(log_error, logtype_cnid, "Parameter filename too long");
118 if ((fp = fopen(pfn, "r")) == NULL) {
119 if (errno == ENOENT) {
120 if (strlen(params.usock_file) == 0) {
121 LOG(log_error, logtype_cnid, "default usock filename too long");
127 LOG(log_error, logtype_cnid, "error opening %s: %s", pfn, strerror(errno));
133 while ((items = fscanf(fp, " %s %s", key, val)) != EOF) {
135 LOG(log_error, logtype_cnid, "error parsing config file");
140 /* Config for both cnid_meta and dbd */
141 if (! strcmp(key, "usock_file")) {
142 if (make_pathname(params.usock_file, dir, val, usock_maxlen()) < 0) {
143 LOG(log_error, logtype_cnid, "usock filename %s too long", val);
146 LOG(log_info, logtype_cnid, "db_param: setting UNIX domain socket filename to %s", params.usock_file);
149 /* Config for cnid_metad only */
151 /* Currently empty */
154 /* Config for dbd only */
155 else if (id == CNID_DBD ) {
156 if (! strcmp(key, "fd_table_size")) {
157 params.fd_table_size = parse_int(val);
158 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);
159 } else if (! strcmp(key, "logfile_autoremove")) {
160 params.logfile_autoremove = parse_int(val);
161 LOG(log_info, logtype_cnid, "db_param: setting logfile_autoremove to %d", params.logfile_autoremove);
162 } else if (! strcmp(key, "cachesize")) {
163 params.cachesize = parse_int(val);
164 LOG(log_info, logtype_cnid, "db_param: setting cachesize to %d", params.cachesize);
165 } else if (! strcmp(key, "flush_frequency")) {
166 params.flush_frequency = parse_int(val);
167 LOG(log_info, logtype_cnid, "db_param: setting flush_frequency to %d", params.flush_frequency);
168 } else if (! strcmp(key, "flush_interval")) {
169 params.flush_interval = parse_int(val);
170 LOG(log_info, logtype_cnid, "db_param: setting flush_interval to %d", params.flush_interval);
171 } else if (! strcmp(key, "idle_timeout")) {
172 params.idle_timeout = parse_int(val);
173 LOG(log_info, logtype_cnid, "db_param: setting idle timeout to %d", params.idle_timeout);
180 if (strlen(params.usock_file) == 0) {
181 LOG(log_error, logtype_cnid, "default usock filename too long");