2 * Copyright (C) 1994-1999, Index Data
4 * Sebastian Hammer, Adam Dickmeiss
7 * Revision 1.26 1999-10-07 09:48:36 adam
8 * Allow res_get / res_get_def with NULL res.
10 * Revision 1.25 1999/05/26 07:49:14 adam
13 * Revision 1.24 1999/02/02 14:51:42 adam
14 * Updated WIN32 code specific sections. Changed header.
16 * Revision 1.23 1998/10/28 15:18:55 adam
17 * Fix for DOS-formatted configuration files.
19 * Revision 1.22 1998/01/12 15:04:32 adam
20 * Removed exit - call.
22 * Revision 1.21 1997/11/18 10:04:03 adam
23 * Function res_trav returns number of 'hits'.
25 * Revision 1.20 1997/10/31 12:39:15 adam
26 * Resouce name can be terminated with either white-space or colon.
28 * Revision 1.19 1997/10/27 14:27:59 adam
31 * Revision 1.18 1997/09/17 12:19:24 adam
32 * Zebra version corresponds to YAZ version 1.4.
33 * Changed Zebra server so that it doesn't depend on global common_resource.
35 * Revision 1.17 1997/09/09 13:38:19 adam
36 * Partial port to WIN95/NT.
38 * Revision 1.16 1996/10/29 13:47:49 adam
39 * Implemented res_get_match. Updated to use zebrautl instead of alexpath.
41 * Revision 1.15 1996/05/22 08:23:43 adam
42 * Bug fix: trailing blanks in resource values where not removed.
44 * Revision 1.14 1996/04/26 11:51:20 adam
45 * Resource names are matched by the yaz_matchstr routine instead of strcmp.
47 * Revision 1.13 1995/09/04 12:34:05 adam
48 * Various cleanup. YAZ util used instead.
50 * Revision 1.12 1995/01/24 16:40:32 adam
53 * Revision 1.11 1994/10/05 16:54:52 adam
56 * Revision 1.10 1994/10/05 10:47:31 adam
59 * Revision 1.9 1994/09/16 14:41:12 quinn
60 * Added log warning to res_get_def
62 * Revision 1.8 1994/09/16 14:37:12 quinn
65 * Revision 1.7 1994/09/06 13:01:03 quinn
66 * Removed const from declaration of res_get
68 * Revision 1.6 1994/09/01 17:45:14 adam
69 * Work on resource manager.
71 * Revision 1.5 1994/08/18 11:02:28 adam
72 * Implementation of res_write.
74 * Revision 1.4 1994/08/18 10:02:01 adam
75 * Module alexpath moved from res.c to alexpath.c. Minor changes in res-test.c
77 * Revision 1.3 1994/08/18 09:43:51 adam
78 * Development of resource manager. Only missing is res_write.
80 * Revision 1.2 1994/08/18 08:23:26 adam
81 * Res.c now use handles. xmalloc defines xstrdup.
83 * Revision 1.1 1994/08/17 15:34:23 adam
84 * Initial version of resource manager.
100 static struct res_entry *add_entry (Res r)
102 struct res_entry *resp;
105 resp = r->last = r->first =
106 (struct res_entry *) xmalloc (sizeof(*resp));
109 resp = (struct res_entry *) xmalloc (sizeof(*resp));
110 r->last->next = resp;
117 static void reread (Res r)
119 struct res_entry *resp;
122 int val_size, val_max = 256;
129 val_buf = (char*) xmalloc (val_max);
131 fr = fopen (r->name, "r");
134 logf (LOG_WARN|LOG_ERRNO, "Cannot open %s", r->name);
139 line = fgets (fr_buf, sizeof(fr_buf)-1, fr);
146 while (fr_buf[no] && fr_buf[no] != '\n')
150 resp = add_entry (r);
151 resp->name = (char*) xmalloc (no+1);
153 strcpy (resp->name, fr_buf);
160 if (fr_buf[no] == 0 || fr_buf[no] == '\n' )
165 if (strchr (": \t", fr_buf[no]))
172 resp = add_entry (r);
173 resp->name = (char*) xmalloc (no);
174 strcpy (resp->name, fr_buf);
176 while (strchr (" \t", fr_buf[no]))
181 if (fr_buf[no] == '\0' || strchr("\n\r\f", fr_buf[no]))
183 while (val_size > 0 &&
184 (val_buf[val_size-1] == ' ' ||
185 val_buf[val_size-1] == '\t'))
187 val_buf[val_size++] = '\0';
188 resp->value = (char*) xmalloc (val_size);
189 strcpy (resp->value, val_buf);
190 logf (LOG_DEBUG, "(name=%s,value=%s)",
191 resp->name, resp->value);
194 else if (fr_buf[no] == '\\' && strchr ("\n\r\f", fr_buf[no+1]))
196 line = fgets (fr_buf, sizeof(fr_buf)-1, fr);
199 resp->value = (char*) xmalloc (val_size);
200 strcpy (resp->value, val_buf);
207 val_buf[val_size++] = fr_buf[no++];
208 if (val_size+1 >= val_max)
212 nb = (char*) xmalloc (val_max+=1024);
213 memcpy (nb, val_buf, val_size);
225 Res res_open (const char *name)
229 if (access (name, 4))
231 if (access (name, R_OK))
234 logf (LOG_LOG|LOG_ERRNO, "Cannot access resource file `%s'", name);
237 r = (Res) xmalloc (sizeof(*r));
239 r->first = r->last = NULL;
240 r->name = xstrdup (name);
244 void res_close (Res r)
249 struct res_entry *re, *re1;
250 for (re = r->first; re; re=re1)
264 char *res_get (Res r, const char *name)
266 struct res_entry *re;
272 for (re = r->first; re; re=re->next)
273 if (re->value && !yaz_matchstr (re->name, name))
278 char *res_get_def (Res r, const char *name, char *def)
282 if (!(t = res_get (r, name)))
284 logf (LOG_DEBUG, "CAUTION: Using default resource %s:%s", name, def);
291 int res_get_match (Res r, const char *name, const char *value, const char *s)
293 const char *cn = res_get (r, name);
295 if (cn && !yaz_matchstr (cn, value))
300 void res_put (Res r, const char *name, const char *value)
302 struct res_entry *re;
307 for (re = r->first; re; re=re->next)
308 if (re->value && !yaz_matchstr (re->name, name))
311 re->value = xstrdup (value);
315 re->name = xstrdup (name);
316 re->value = xstrdup (value);
319 int res_trav (Res r, const char *prefix, void *p,
320 void (*f)(void *p, const char *name, const char *value))
322 struct res_entry *re;
331 for (re = r->first; re; re=re->next)
333 if (l==0 || !memcmp (re->name, prefix, l))
335 (*f)(p, re->name, re->value);
342 int res_write (Res r)
344 struct res_entry *re;
350 fr = fopen (r->name, "w");
353 logf (LOG_FATAL|LOG_ERRNO, "Cannot create %s", r->name);
357 for (re = r->first; re; re=re->next)
360 int lefts = strlen(re->name)+2;
363 fprintf (fr, "%s\n", re->name);
366 fprintf (fr, "%s: ", re->name);
367 while (lefts + strlen(re->value+no) > 78)
370 int ind = no+ 78-lefts;
373 if (re->value[ind] == ' ')
378 ind = no + 78 - lefts;
379 for (i = no; i != ind; i++)
380 putc (re->value[i], fr);
381 fprintf (fr, "\\\n");
385 fprintf (fr, "%s\n", re->value+no);