-/*
- * Copyright (C) 1994, Index Data I/S
- * All rights reserved.
- * Sebastian Hammer, Adam Dickmeiss
- *
- * $Log: res.c,v $
- * Revision 1.1 1994-08-17 15:34:23 adam
- * Initial version of resource manager.
- *
- */
+/* $Id: res.c,v 1.31 2002-08-02 19:26:57 adam Exp $
+ Copyright (C) 1995,1996,1997,1998,1999,2000,2001,2002
+ Index Data Aps
+
+This file is part of the Zebra server.
+
+Zebra is free software; you can redistribute it and/or modify it under
+the terms of the GNU General Public License as published by the Free
+Software Foundation; either version 2, or (at your option) any later
+version.
+
+Zebra is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or
+FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+for more details.
+
+You should have received a copy of the GNU General Public License
+along with Zebra; see the file LICENSE.zebra. If not, write to the
+Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA
+02111-1307, USA.
+*/
+
+
#include <stdio.h>
#include <stdlib.h>
-#include <util.h>
+#include <string.h>
+#include <assert.h>
+#ifdef WIN32
+#include <io.h>
+#else
+#include <unistd.h>
+#endif
+
+#include <zebrautl.h>
+#include <yaz/yaz-util.h>
-struct res {
+struct res_entry {
char *name;
char *value;
- struct res *next;
+ struct res_entry *next;
};
-static struct res *first = NULL, *last = NULL;
-static int res_init = 0;
-
-static FILE *fr;
+struct res_struct {
+ struct res_entry *first, *last;
+ char *name;
+ int init;
+ Res def_res;
+};
-const char *alex_path (const char *name)
+static struct res_entry *add_entry (Res r)
{
- static char path[256];
- char *alex_prefix;
+ struct res_entry *resp;
- if (!(alex_prefix = getenv ("ALEXPREFIX")))
- alex_prefix = "./";
-
- if (*alex_prefix && alex_prefix[strlen(alex_prefix)-1] == '/')
- sprintf (path, "%s%s", alex_prefix, name);
+ if (!r->first)
+ resp = r->last = r->first =
+ (struct res_entry *) xmalloc (sizeof(*resp));
else
- sprintf (path, "%s/%s", alex_prefix, name);
- return path;
+ {
+ resp = (struct res_entry *) xmalloc (sizeof(*resp));
+ r->last->next = resp;
+ r->last = resp;
+ }
+ resp->next = NULL;
+ return resp;
}
-static void reread (void)
+static void reread (Res r)
{
- struct res *resp;
+ struct res_entry *resp;
char *line;
- char *alex_base;
char *val_buf;
- int val_size, val_max = 1024;
- char path[256];
+ int val_size, val_max = 256;
char fr_buf[1024];
+ FILE *fr;
- res_init = 1;
-
- val_buf = xmalloc (val_max);
-
- if (!(alex_base = getenv ("ALEXBASE")))
- alex_base = "base";
+ assert (r);
+ r->init = 1;
- strcpy (path, alex_path(alex_base));
+ val_buf = (char*) xmalloc (val_max);
- fr = fopen (path, "r");
+ fr = fopen (r->name, "r");
if (!fr)
{
- log (LOG_FATAL, "cannot open %s", path);
- exit (1);
+ logf (LOG_WARN|LOG_ERRNO, "Cannot open %s", r->name);
+ return ;
}
while (1)
{
- line = fgets (fr_buf, 1023, fr);
+ line = fgets (fr_buf, sizeof(fr_buf)-1, fr);
if (!line)
break;
if (*line == '#')
no++;
fr_buf[no] = '\0';
- if (!first)
- resp = last = first = xmalloc (sizeof(*resp));
- else
- {
- resp = xmalloc (sizeof(*resp));
- last->next = resp;
- last = resp;
- }
- resp->next = NULL;
- resp->name = xmalloc (no+1);
+ resp = add_entry (r);
+ resp->name = (char*) xmalloc (no+1);
resp->value = NULL;
strcpy (resp->name, fr_buf);
}
{
if (fr_buf[no] == 0 || fr_buf[no] == '\n' )
{
- no = -1;
+ no = 0;
break;
}
- if (fr_buf[no] == ':')
+ if (strchr (": \t", fr_buf[no]))
break;
no++;
}
- if (no < 0)
+ if (!no)
continue;
fr_buf[no++] = '\0';
- if (!first)
- resp = last = first = xmalloc (sizeof(*resp));
- else
- {
- resp = xmalloc (sizeof(*resp));
- last->next = resp;
- last = resp;
- }
- resp->next = NULL;
- resp->name = xmalloc (no);
+ resp = add_entry (r);
+ resp->name = (char*) xmalloc (no);
strcpy (resp->name, fr_buf);
- while (fr_buf[no] == ' ')
+ while (strchr (" \t", fr_buf[no]))
no++;
val_size = 0;
while (1)
{
- if (fr_buf[no] == '\0' || fr_buf[no] == '\n')
+ if (fr_buf[no] == '\0' || strchr("\n\r\f", fr_buf[no]))
{
+ while (val_size > 0 &&
+ (val_buf[val_size-1] == ' ' ||
+ val_buf[val_size-1] == '\t'))
+ val_size--;
val_buf[val_size++] = '\0';
- resp->value = xmalloc (val_size);
+ resp->value = (char*) xmalloc (val_size);
strcpy (resp->value, val_buf);
+ logf (LOG_DEBUG, "(name=%s,value=%s)",
+ resp->name, resp->value);
break;
}
- else if (fr_buf[no] == '\\' && fr_buf[no+1] == '\n')
+ else if (fr_buf[no] == '\\' && strchr ("\n\r\f", fr_buf[no+1]))
{
- line = fgets (fr_buf, 1023, fr);
+ line = fgets (fr_buf, sizeof(fr_buf)-1, fr);
if (!line)
{
- resp->value = xmalloc (val_size);
+ resp->value = (char*) xmalloc (val_size);
strcpy (resp->value, val_buf);
break;
}
no = 0;
}
else
- val_buf[val_size] = fr_buf[no++];
+ {
+ val_buf[val_size++] = fr_buf[no++];
+ if (val_size+1 >= val_max)
+ {
+ char *nb;
+
+ nb = (char*) xmalloc (val_max+=1024);
+ memcpy (nb, val_buf, val_size);
+ xfree (val_buf);
+ val_buf = nb;
+ }
+ }
}
}
}
fclose (fr);
}
+Res res_open (const char *name, Res def_res)
+{
+ Res r;
+#ifdef WIN32
+ if (access (name, 4))
+#else
+ if (access (name, R_OK))
+#endif
+ {
+ logf (LOG_WARN|LOG_ERRNO, "Cannot access resource file `%s'", name);
+ return 0;
+ }
+ r = (Res) xmalloc (sizeof(*r));
+ r->init = 0;
+ r->first = r->last = NULL;
+ r->name = xstrdup (name);
+ r->def_res = def_res;
+ return r;
+}
-const char *res_get (const char *name)
+void res_close (Res r)
{
- if (!res_init)
- reread ();
- return NULL;
+ if (!r)
+ return;
+ if (r->init)
+ {
+ struct res_entry *re, *re1;
+ for (re = r->first; re; re=re1)
+ {
+ if (re->name)
+ xfree (re->name);
+ if (re->value)
+ xfree (re->value);
+ re1 = re->next;
+ xfree (re);
+ }
+ }
+ xfree (r->name);
+ xfree (r);
}
-const char *res_put (const char *name, const char *value)
+char *res_get (Res r, const char *name)
{
- if (!res_init)
- reread ();
- return NULL;
+ struct res_entry *re;
+
+ if (!r)
+ return 0;
+ if (!r->init)
+ reread (r);
+ for (re = r->first; re; re=re->next)
+ if (re->value && !yaz_matchstr (re->name, name))
+ return re->value;
+
+ return res_get (r->def_res, name);
}
+
+char *res_get_def (Res r, const char *name, char *def)
+{
+ char *t;
+
+ if (!(t = res_get (r, name)))
+ {
+ logf (LOG_DEBUG, "CAUTION: Using default resource %s:%s", name, def);
+ return def;
+ }
+ else
+ return t;
+}
+
+int res_get_match (Res r, const char *name, const char *value, const char *s)
+{
+ const char *cn = res_get (r, name);
+
+ if (!cn)
+ cn = s;
+ if (cn && !yaz_matchstr (cn, value))
+ return 1;
+ return 0;
+}
+
+void res_put (Res r, const char *name, const char *value)
+{
+ struct res_entry *re;
+ assert (r);
+ if (!r->init)
+ reread (r);
+
+ for (re = r->first; re; re=re->next)
+ if (re->value && !yaz_matchstr (re->name, name))
+ {
+ xfree (re->value);
+ re->value = xstrdup (value);
+ return;
+ }
+ re = add_entry (r);
+ re->name = xstrdup (name);
+ re->value = xstrdup (value);
+}
+
+int res_trav (Res r, const char *prefix, void *p,
+ void (*f)(void *p, const char *name, const char *value))
+{
+ struct res_entry *re;
+ int l = 0;
+ int no = 0;
-int res_write (void)
+ if (!r)
+ return 0;
+ if (prefix)
+ l = strlen(prefix);
+ if (!r->init)
+ reread (r);
+ for (re = r->first; re; re=re->next)
+ if (re->value)
+ if (l==0 || !memcmp (re->name, prefix, l))
+ {
+ (*f)(p, re->name, re->value);
+ no++;
+ }
+ if (!no)
+ return res_trav (r->def_res, prefix, p, f);
+ return no;
+}
+
+
+int res_write (Res r)
{
- if (!res_init)
- reread ();
+ struct res_entry *re;
+ FILE *fr;
+
+ assert (r);
+ if (!r->init)
+ reread (r);
+ fr = fopen (r->name, "w");
+ if (!fr)
+ {
+ logf (LOG_FATAL|LOG_ERRNO, "Cannot create %s", r->name);
+ exit (1);
+ }
+
+ for (re = r->first; re; re=re->next)
+ {
+ int no = 0;
+ int lefts = strlen(re->name)+2;
+
+ if (!re->value)
+ fprintf (fr, "%s\n", re->name);
+ else
+ {
+ fprintf (fr, "%s: ", re->name);
+ while (lefts + strlen(re->value+no) > 78)
+ {
+ int i = 20;
+ int ind = no+ 78-lefts;
+ while (--i >= 0)
+ {
+ if (re->value[ind] == ' ')
+ break;
+ --ind;
+ }
+ if (i<0)
+ ind = no + 78 - lefts;
+ for (i = no; i != ind; i++)
+ putc (re->value[i], fr);
+ fprintf (fr, "\\\n");
+ no=ind;
+ lefts = 0;
+ }
+ fprintf (fr, "%s\n", re->value+no);
+ }
+ }
+ fclose (fr);
return 0;
}