2 * Copyright (c) 1999, Boris Popov
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. Neither the name of the author nor the names of any co-contributors
14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 #include <sys/cdefs.h>
31 __FBSDID("$FreeBSD$");
33 #include <sys/types.h>
34 #include <sys/queue.h>
43 #include <netncp/ncp_lib.h>
44 #include <netncp/ncp_rcfile.h>
45 #include <netncp/ncp_cfg.h>
47 #define NWFS_CFG_FILE NCP_PREFIX"/etc/nwfs.conf"
49 struct rcfile *ncp_rc = NULL;
51 SLIST_HEAD(rcfile_head, rcfile);
52 static struct rcfile_head pf_head = {NULL};
54 int rc_merge(char *filename,struct rcfile **rcfile);
55 static struct rcfile* rc_find(char *filename);
56 static struct rcsection *rc_findsect(struct rcfile *rcp, char *sectname);
57 static struct rcsection *rc_addsect(struct rcfile *rcp, char *sectname);
58 static int rc_sect_free(struct rcsection *rsp);
59 static struct rckey *rc_sect_findkey(struct rcsection *rsp, char *keyname);
60 static struct rckey *rc_sect_addkey(struct rcsection *rsp, char *name, char *value);
61 static void rc_key_free(struct rckey *p);
62 static void rc_parse(struct rcfile *rcp);
66 * open rcfile and load its content, if already open - return previous handle
69 rc_open(char *filename,char *mode,struct rcfile **rcfile) {
73 rcp = rc_find(filename);
78 f = fopen (filename, mode);
81 rcp = malloc(sizeof(struct rcfile));
86 bzero(rcp, sizeof(struct rcfile));
87 rcp->rf_name = strdup (filename);
89 SLIST_INSERT_HEAD(&pf_head, rcp, rf_next);
96 rc_merge(char *filename,struct rcfile **rcfile) {
97 struct rcfile *rcp = *rcfile;
101 return rc_open(filename,"r",rcfile);
103 f = fopen (filename, "r");
115 rc_close(struct rcfile *rcp) {
116 struct rcsection *p,*n;
119 for(p = SLIST_FIRST(&rcp->rf_sect);p;) {
121 p = SLIST_NEXT(p,rs_next);
125 SLIST_REMOVE(&pf_head, rcp, rcfile, rf_next);
130 static struct rcfile*
131 rc_find(char *filename) {
134 SLIST_FOREACH(p, &pf_head, rf_next)
135 if (strcmp (filename, p->rf_name)==0)
140 static struct rcsection *
141 rc_findsect(struct rcfile *rcp, char *sectname) {
144 SLIST_FOREACH(p, &rcp->rf_sect, rs_next)
145 if (strcmp(p->rs_name, sectname)==0)
150 static struct rcsection *
151 rc_addsect(struct rcfile *rcp, char *sectname) {
154 p = rc_findsect(rcp, sectname);
156 p = malloc(sizeof(*p));
158 p->rs_name = strdup(sectname);
159 SLIST_INIT(&p->rs_keys);
160 SLIST_INSERT_HEAD(&rcp->rf_sect, p, rs_next);
165 rc_sect_free(struct rcsection *rsp) {
168 for(p = SLIST_FIRST(&rsp->rs_keys);p;) {
170 p = SLIST_NEXT(p,rk_next);
178 static struct rckey *
179 rc_sect_findkey(struct rcsection *rsp, char *keyname) {
182 SLIST_FOREACH(p, &rsp->rs_keys, rk_next)
183 if (strcmp(p->rk_name, keyname)==0)
188 static struct rckey *
189 rc_sect_addkey(struct rcsection *rsp, char *name, char *value) {
192 p = rc_sect_findkey(rsp, name);
196 p = malloc(sizeof(*p));
198 SLIST_INSERT_HEAD(&rsp->rs_keys, p, rk_next);
199 p->rk_name = strdup(name);
201 p->rk_value = value ? strdup(value) : strdup("");
206 rc_sect_delkey(struct rcsection *rsp, struct rckey *p) {
208 SLIST_REMOVE(&rsp->rs_keys,p,rckey,rk_next);
214 rc_key_free(struct rckey *p){
220 enum { stNewLine, stHeader, stSkipToEOL, stGetKey, stGetValue};
223 rc_parse(struct rcfile *rcp) {
225 int state = stNewLine, c;
226 struct rcsection *rsp = NULL;
227 struct rckey *rkp = NULL;
229 char *next = buf, *last = &buf[sizeof(buf)-1];
231 while ((c = getc (f)) != EOF) {
234 if (state == stNewLine) {
237 continue; /* skip leading junk */
243 if (c == '#' || c == ';') {
245 } else { /* something meaningfull */
249 if (state == stSkipToEOL || next == last) {/* ignore long lines */
256 if (state == stHeader) {
260 rsp = rc_addsect(rcp, buf);
266 if (state == stGetKey) {
267 if (c == ' ' || c == '\t')/* side effect: 'key name='*/
268 continue; /* become 'keyname=' */
269 if (c == '\n') { /* silently ignore ... */
279 fprintf(stderr, "Key '%s' defined before section\n", buf);
283 rkp = rc_sect_addkey(rsp, buf, NULL);
288 /* only stGetValue left */
289 if (state != stGetValue) {
290 fprintf(stderr, "Well, I can't parse file '%s'\n",rcp->rf_name);
298 rkp->rk_value = strdup(buf);
302 if (c == EOF && state == stGetValue) {
304 rkp->rk_value = strdup(buf);
310 rc_getstringptr(struct rcfile *rcp,char *section, char *key,char **dest) {
311 struct rcsection *rsp;
315 rsp = rc_findsect(rcp, section);
316 if (!rsp) return ENOENT;
317 rkp = rc_sect_findkey(rsp,key);
318 if (!rkp) return ENOENT;
319 *dest = rkp->rk_value;
324 rc_getstring(struct rcfile *rcp,char *section, char *key,int maxlen,char *dest) {
328 error = rc_getstringptr(rcp, section, key, &value);
329 if (error) return error;
330 if (strlen(value) >= maxlen) {
331 fprintf(stderr, "line too long for key '%s' in section '%s', max = %d\n",key, section, maxlen);
339 rc_getint(struct rcfile *rcp,char *section, char *key,int *value) {
340 struct rcsection *rsp;
343 rsp = rc_findsect(rcp, section);
344 if (!rsp) return ENOENT;
345 rkp = rc_sect_findkey(rsp,key);
346 if (!rkp) return ENOENT;
348 *value = strtol(rkp->rk_value,NULL,0);
350 fprintf(stderr, "invalid int value '%s' for key '%s' in section '%s'\n",rkp->rk_value,key,section);
361 rc_getbool(struct rcfile *rcp,char *section, char *key,int *value) {
362 struct rcsection *rsp;
366 rsp = rc_findsect(rcp, section);
367 if (!rsp) return ENOENT;
368 rkp = rc_sect_findkey(rsp,key);
369 if (!rkp) return ENOENT;
371 while (*p && isspace(*p)) p++;
372 if (*p == '0' || strcasecmp(p,"no") == 0 || strcasecmp(p,"false") == 0) {
376 if (*p == '1' || strcasecmp(p,"yes") == 0 || strcasecmp(p,"true") == 0) {
380 fprintf(stderr, "invalid boolean value '%s' for key '%s' in section '%s' \n",p, key, section);
385 * first read ~/.nwfsrc, next try to merge NWFS_CFG_FILE
388 ncp_open_rcfile(void) {
392 home = getenv("HOME");
394 fn = malloc(strlen(home) + 20);
395 sprintf(fn, "%s/.nwfsrc", home);
396 error = rc_open(fn,"r",&ncp_rc);
399 error = rc_merge(NWFS_CFG_FILE, &ncp_rc);
400 if( ncp_rc == NULL ) {
401 printf("Warning: no cfg files found.\n");