2 * $Id: db_param.c,v 1.1.4.1 2003-09-09 16:42:20 didg Exp $
4 * Copyright (C) Joerg Lenneis 2003
5 * All Rights Reserved. See COPYRIGHT.
10 #endif /* HAVE_CONFIG_H */
14 #endif /* HAVE_UNISTD_H */
19 #include <sys/param.h>
23 #include <atalk/logger.h>
28 #define DB_PARAM_FN "db_param"
31 #define DEFAULT_BACKLOG 20
32 #define DEFAULT_CACHESIZE 1024 * 4
33 #define DEFAULT_NOSYNC 0
34 #define DEFAULT_FLUSH_FREQUENCY 100
35 #define DEFAULT_FLUSH_INTERVAL 30
36 #define DEFAULT_USOCK_FILE "usock"
37 #define DEFAULT_FD_TABLE_SIZE 16
38 #define DEFAULT_IDLE_TIMEOUT 600
40 static struct db_param params;
43 static int usock_maxlen()
45 struct sockaddr_un addr;
47 return sizeof(addr.sun_path) - 1;
50 static int make_pathname(char *path, char *dir, char *fn, int maxlen)
56 if (len + 1 + strlen(fn) > maxlen)
59 if (path[len - 1] != '/')
63 if (strlen(fn) > maxlen)
70 static void default_params(struct db_param *dbp, char *dir)
72 dbp->backlog = DEFAULT_BACKLOG;
73 dbp->cachesize = DEFAULT_CACHESIZE;
74 dbp->nosync = DEFAULT_NOSYNC;
75 dbp->flush_frequency = DEFAULT_FLUSH_FREQUENCY;
76 dbp->flush_interval = DEFAULT_FLUSH_INTERVAL;
77 if (make_pathname(dbp->usock_file, dir, DEFAULT_USOCK_FILE, usock_maxlen()) < 0)
78 /* Not an error yet, it might be set in the config file */
79 dbp->usock_file[0] = '\0';
80 dbp->fd_table_size = DEFAULT_FD_TABLE_SIZE;
81 dbp->idle_timeout = DEFAULT_IDLE_TIMEOUT;
85 static int parse_int(char *val)
90 result = strtol(val, &tmp, 10);
92 LOG(log_error, logtype_cnid, "invalid characters in token %s", val);
99 /* TODO: This configuration file reading routine is neither very robust (%s
100 buffer overflow) nor elegant, we need to add support for whitespace in
101 filenames as well. */
103 struct db_param *db_param_read(char *dir)
106 static char key[MAXKEYLEN + 1];
107 static char val[MAXPATHLEN + 1];
108 static char pfn[MAXPATHLEN + 1];
111 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 if (! strcmp(key, "backlog"))
141 params.backlog = parse_int(val);
142 else if (! strcmp(key, "cachesize"))
143 params.cachesize = parse_int(val);
144 else if (! strcmp(key, "nosync"))
145 params.nosync = parse_int(val);
146 else if (! strcmp(key, "flush_frequency"))
147 params.flush_frequency = parse_int(val);
148 else if (! strcmp(key, "flush_interval"))
149 params.flush_interval = parse_int(val);
150 else if (! strcmp(key, "usock_file")) {
151 if (make_pathname(params.usock_file, dir, val, usock_maxlen()) < 0) {
152 LOG(log_error, logtype_cnid, "usock filename %s too long", val);
155 } else if (! strcmp(key, "fd_table_size"))
156 params.fd_table_size = parse_int(val);
157 else if (! strcmp(key, "idle_timeout"))
158 params.idle_timeout = parse_int(val);
160 LOG(log_error, logtype_cnid, "error parsing %s -> %s in config file", key, val);
167 if (strlen(params.usock_file) == 0) {
168 LOG(log_error, logtype_cnid, "default usock filename too long");