1 /* $Id: res.c,v 1.45 2005-09-13 11:51:11 adam Exp $
2 Copyright (C) 1995-2005
5 This file is part of the Zebra server.
7 Zebra is free software; you can redistribute it and/or modify it under
8 the terms of the GNU General Public License as published by the Free
9 Software Foundation; either version 2, or (at your option) any later
12 Zebra is distributed in the hope that it will be useful, but WITHOUT ANY
13 WARRANTY; without even the implied warranty of MERCHANTABILITY or
14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
17 You should have received a copy of the GNU General Public License
18 along with Zebra; see the file LICENSE.zebra. If not, write to the
19 Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA
34 #include <yaz/yaz-util.h>
35 #include <idzebra/res.h>
40 struct res_entry *next;
44 struct res_entry *first, *last;
49 static struct res_entry *add_entry(Res r)
51 struct res_entry *resp;
54 resp = r->last = r->first =
55 (struct res_entry *) xmalloc(sizeof(*resp));
58 resp = (struct res_entry *) xmalloc(sizeof(*resp));
66 static char *xstrdup_env(const char *src)
75 if (src[i] == '$' && src[i+1] == '{')
81 while (k < 127 && src[i] && !strchr(":}\n\r\f", src[i]))
82 envname[k++] = src[i++];
85 env_val = getenv(envname);
87 env_strlen += 1 + strlen(env_val);
90 while (src[i] && !strchr("}\n\r\f", src[i]))
98 dst = xmalloc(1 + env_strlen + i);
102 if (src[i] == '$' && src[i+1] == '{')
108 while(k < 127 && src[i] && !strchr(":}\n\r\f", src[i]))
109 envname[k++] = src[i++];
111 env_val = getenv(envname);
114 strcpy(dst+j, env_val);
115 j += strlen(env_val);
117 else if (src[i] == ':' && src[i+1] == '-')
120 while (src[i] && !strchr("}\n\r\f", src[i]))
123 while (src[i] && !strchr("}\n\r\f", src[i]))
135 ZEBRA_RES res_read_file(Res r, const char *fname)
137 struct res_entry *resp;
140 int val_size, val_max = 256;
146 fr = fopen(fname, "r");
149 yaz_log(YLOG_WARN|YLOG_ERRNO, "Cannot open `%s'", fname);
152 val_buf = (char*) xmalloc(val_max);
155 line = fgets(fr_buf, sizeof(fr_buf)-1, fr);
163 if (fr_buf[no] == 0 || fr_buf[no] == '\n' )
168 if (strchr(": \t", fr_buf[no]))
176 resp->name = (char*) xmalloc(no);
177 strcpy(resp->name, fr_buf);
179 while (strchr(" \t", fr_buf[no]))
184 if (fr_buf[no] == '\0' || strchr("\n\r\f", fr_buf[no]))
186 while (val_size > 0 &&
187 (val_buf[val_size-1] == ' ' ||
188 val_buf[val_size-1] == '\t'))
190 val_buf[val_size] = '\0';
191 resp->value = xstrdup_env(val_buf);
192 yaz_log(YLOG_DEBUG, "(name=%s,value=%s)",
193 resp->name, resp->value);
196 else if (fr_buf[no] == '\\' && strchr("\n\r\f", fr_buf[no+1]))
198 line = fgets(fr_buf, sizeof(fr_buf)-1, fr);
201 val_buf[val_size] = '\0';
202 resp->value = xstrdup_env(val_buf);
209 val_buf[val_size++] = fr_buf[no++];
210 if (val_size+1 >= val_max)
214 nb = (char*) xmalloc(val_max+=1024);
215 memcpy(nb, val_buf, val_size);
228 Res res_open(Res def_res, Res over_res)
232 r = (Res) xmalloc(sizeof(*r));
233 r->first = r->last = NULL;
234 r->def_res = def_res;
235 r->over_res = over_res;
239 void res_clear(Res r)
241 struct res_entry *re, *re1;
242 for (re = r->first; re; re=re1)
251 r->first = r->last = NULL;
254 void res_close(Res r)
263 const char *res_get_prefix(Res r, const char *name, const char *prefix,
271 if (strlen(name) + strlen(prefix) >= (sizeof(rname)-2))
273 strcpy(rname, prefix);
276 v = res_get(r, rname);
279 v = res_get(r, name);
285 const char *res_get(Res r, const char *name)
287 struct res_entry *re;
293 v = res_get(r->over_res, name);
297 for (re = r->first; re; re=re->next)
298 if (re->value && !yaz_matchstr(re->name, name))
301 return res_get(r->def_res, name);
304 const char *res_get_def(Res r, const char *name, const char *def)
308 if (!(t = res_get(r, name)))
310 yaz_log(YLOG_DEBUG, "CAUTION: Using default resource %s:%s", name, def);
317 int res_get_match(Res r, const char *name, const char *value, const char *s)
319 const char *cn = res_get(r, name);
323 if (cn && !yaz_matchstr(cn, value))
328 void res_set(Res r, const char *name, const char *value)
330 struct res_entry *re;
333 for (re = r->first; re; re=re->next)
334 if (re->value && !yaz_matchstr(re->name, name))
337 re->value = xstrdup_env(value);
341 re->name = xstrdup(name);
342 re->value = xstrdup_env(value);
345 int res_trav(Res r, const char *prefix, void *p,
346 void (*f)(void *p, const char *name, const char *value))
348 struct res_entry *re;
354 no = res_trav(r->over_res, prefix, p, f);
359 for (re = r->first; re; re=re->next)
361 if (l==0 || !memcmp(re->name, prefix, l))
363 (*f)(p, re->name, re->value);
367 return res_trav(r->def_res, prefix, p, f);
372 ZEBRA_RES res_write_file(Res r, const char *fname)
374 struct res_entry *re;
378 fr = fopen(fname, "w");
381 yaz_log(YLOG_FATAL|YLOG_ERRNO, "Cannot create `%s'", fname);
385 for (re = r->first; re; re=re->next)
388 int lefts = strlen(re->name)+2;
391 fprintf(fr, "%s\n", re->name);
394 fprintf(fr, "%s: ", re->name);
395 while (lefts + strlen(re->value+no) > 78)
398 int ind = no+ 78-lefts;
401 if (re->value[ind] == ' ')
406 ind = no + 78 - lefts;
407 for (i = no; i != ind; i++)
408 putc(re->value[i], fr);
413 fprintf(fr, "%s\n", re->value+no);
420 ZEBRA_RES res_get_int(Res r, const char *name, int *val)
422 const char *cp = res_get(r, name);
425 if (sscanf(cp, "%d", val) == 1)
427 yaz_log(YLOG_WARN, "Expected integer for resource %s", name);