-/*
- * 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.
- *
- */
+/* This file is part of the Zebra server.
+ Copyright (C) 1994-2011 Index Data
+
+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 this program; if not, write to the Free Software
+Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+
+*/
+
+#if HAVE_CONFIG_H
+#include <config.h>
+#endif
#include <stdio.h>
#include <stdlib.h>
-#include <util.h>
+#include <string.h>
+#include <assert.h>
+#ifdef WIN32
+#include <io.h>
+#endif
+#if HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+
+#include <yaz/tokenizer.h>
+#include <yaz/yaz-util.h>
+#include <idzebra/res.h>
-struct res {
+#define YLOG_RES 0
+
+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;
+struct res_struct {
+ int ref_count;
+ struct res_entry *first, *last;
+ Res def_res;
+ Res over_res;
+};
-static FILE *fr;
+static Res res_incref(Res r)
+{
+ if (r)
+ r->ref_count++;
+ return r;
+}
-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 char *xstrdup_env(const char *src)
{
- struct res *resp;
- char *line;
- char *alex_base;
- char *val_buf;
- int val_size, val_max = 1024;
- char path[256];
- char fr_buf[1024];
+ int i = 0;
+ int j = 0;
+ char *dst;
+ int env_strlen = 0;
- res_init = 1;
+ while (src[i])
+ {
+ if (src[i] == '$' && src[i+1] == '{')
+ {
+ char envname[128];
+ char *env_val;
+ int k = 0;
+ i = i + 2;
+ while (k < 127 && src[i] && !strchr(":}\n\r\f", src[i]))
+ envname[k++] = src[i++];
+ envname[k] = '\0';
- val_buf = xmalloc (val_max);
+ env_val = getenv(envname);
+ if (env_val)
+ env_strlen += 1 + strlen(env_val);
+ else
+ env_strlen++;
+ while (src[i] && !strchr("}\n\r\f", src[i]))
+ i++;
+ if (src[i] == '}')
+ i++;
+ }
+ else
+ i++;
+ }
+ dst = xmalloc(1 + env_strlen + i);
+ i = 0;
+ while (src[i])
+ {
+ if (src[i] == '$' && src[i+1] == '{')
+ {
+ char envname[128];
+ char *env_val;
+ int k = 0;
+ i = i + 2;
+ while(k < 127 && src[i] && !strchr(":}\n\r\f", src[i]))
+ envname[k++] = src[i++];
+ envname[k] = '\0';
+ env_val = getenv(envname);
+ if (env_val)
+ {
+ strcpy(dst+j, env_val);
+ j += strlen(env_val);
+ }
+ else if (src[i] == ':' && src[i+1] == '-')
+ {
+ i = i + 2;
+ while (src[i] && !strchr("}\n\r\f", src[i]))
+ dst[j++] = src[i++];
+ }
+ while (src[i] && !strchr("}\n\r\f", src[i]))
+ i++;
+ if (src[i] == '}')
+ i++;
+ }
+ else
+ dst[j++] = src[i++];
+ }
+ dst[j] = '\0';
+ return dst;
+}
- if (!(alex_base = getenv ("ALEXBASE")))
- alex_base = "base";
+ZEBRA_RES res_read_file(Res r, const char *fname)
+{
+ FILE *fr;
+ int errors = 0;
- strcpy (path, alex_path(alex_base));
+ assert(r);
- fr = fopen (path, "r");
+ fr = fopen(fname, "r");
if (!fr)
{
- log (LOG_FATAL, "cannot open %s", path);
- exit (1);
+ yaz_log(YLOG_WARN|YLOG_ERRNO, "Cannot open `%s'", fname);
+ errors++;
}
- while (1)
+ else
{
- line = fgets (fr_buf, 1023, fr);
- if (!line)
- break;
- if (*line == '#')
- {
- int no = 0;
-
- while (fr_buf[no] && fr_buf[no] != '\n')
- 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->value = NULL;
- strcpy (resp->name, fr_buf);
- }
- else
+ char fr_buf[1024];
+ char *line;
+ int lineno = 1;
+ WRBUF wrbuf_val = wrbuf_alloc();
+ yaz_tok_cfg_t yt = yaz_tok_cfg_create();
+
+ while ((line = fgets(fr_buf, sizeof(fr_buf)-1, fr)))
{
- int no = 0;
- while (1)
+ yaz_tok_parse_t tp = yaz_tok_parse_buf(yt, line);
+ int t = yaz_tok_move(tp);
+
+ if (t == YAZ_TOK_STRING)
{
- if (fr_buf[no] == 0 || fr_buf[no] == '\n' )
+ size_t sz;
+ struct res_entry *resp;
+ const char *cp = yaz_tok_parse_string(tp);
+ const char *cp1 = strchr(cp, ':');
+
+ if (!cp1)
{
- no = -1;
+ yaz_log(YLOG_FATAL, "%s:%d missing colon after '%s'",
+ fname, lineno, cp);
+ errors++;
break;
}
- if (fr_buf[no] == ':')
- break;
- no++;
- }
- if (no < 0)
- 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);
- strcpy (resp->name, fr_buf);
-
- while (fr_buf[no] == ' ')
- no++;
- val_size = 0;
- while (1)
- {
- if (fr_buf[no] == '\0' || fr_buf[no] == '\n')
+ resp = add_entry(r);
+ sz = cp1 - cp;
+ resp->name = xmalloc(sz + 1);
+ memcpy(resp->name, cp, sz);
+ resp->name[sz] = '\0';
+
+ wrbuf_rewind(wrbuf_val);
+
+ if (cp1[1])
{
- val_buf[val_size++] = '\0';
- resp->value = xmalloc (val_size);
- strcpy (resp->value, val_buf);
- break;
+ /* name:value */
+ wrbuf_puts(wrbuf_val, cp1+1);
}
- else if (fr_buf[no] == '\\' && fr_buf[no+1] == '\n')
+ else
{
- line = fgets (fr_buf, 1023, fr);
- if (!line)
+ /* name: value */
+ t = yaz_tok_move(tp);
+
+ if (t != YAZ_TOK_STRING)
{
- resp->value = xmalloc (val_size);
- strcpy (resp->value, val_buf);
+ resp->value = xstrdup("");
+ yaz_log(YLOG_FATAL, "%s:%d missing value after '%s'",
+ fname, lineno, resp->name);
+ errors++;
break;
}
- no = 0;
+ wrbuf_puts(wrbuf_val, yaz_tok_parse_string(tp));
}
- else
- val_buf[val_size] = fr_buf[no++];
+ while ((t=yaz_tok_move(tp)) == YAZ_TOK_STRING)
+ {
+ wrbuf_putc(wrbuf_val, ' ');
+ wrbuf_puts(wrbuf_val, yaz_tok_parse_string(tp));
+ }
+ resp->value = xstrdup_env(wrbuf_cstr(wrbuf_val));
+ /* printf("name=%s value=%s\n", resp->name, resp->value); */
}
- }
- }
- xfree (val_buf);
- fclose (fr);
+ lineno++;
+ yaz_tok_parse_destroy(tp);
+ }
+ fclose(fr);
+ yaz_tok_cfg_destroy(yt);
+ wrbuf_destroy(wrbuf_val);
+ }
+ if (errors)
+ return ZEBRA_FAIL;
+ return ZEBRA_OK;
}
+Res res_open(Res def_res, Res over_res)
+{
+ Res r;
+ r = (Res) xmalloc(sizeof(*r));
-const char *res_get (const char *name)
+ r->ref_count = 1;
+ r->first = r->last = NULL;
+ r->def_res = res_incref(def_res);
+ r->over_res = res_incref(over_res);
+ return r;
+}
+
+void res_clear(Res r)
{
- if (!res_init)
- reread ();
- return NULL;
+ 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);
+ }
+ r->first = r->last = NULL;
}
-const char *res_put (const char *name, const char *value)
+void res_close(Res r)
{
- if (!res_init)
- reread ();
- return NULL;
+ if (r && --(r->ref_count) == 0)
+ {
+ res_clear(r);
+ res_close(r->def_res);
+ res_close(r->over_res);
+ xfree(r);
+ }
}
+
+const char *res_get_prefix(Res r, const char *name, const char *prefix,
+ const char *def)
+{
+ const char *v = 0;;
+ if (prefix)
+ {
+ char rname[128];
+
+ if (strlen(name) + strlen(prefix) >= (sizeof(rname)-2))
+ return 0;
+ strcpy(rname, prefix);
+ strcat(rname, ".");
+ strcat(rname, name);
+ v = res_get(r, rname);
+ }
+ if (!v)
+ v = res_get(r, name);
+ if (!v)
+ v = def;
+ return v;
+}
+
+const char *res_get(Res r, const char *name)
+{
+ struct res_entry *re;
+ const char *v;
+
+ if (!r)
+ return 0;
-int res_write (void)
+ v = res_get(r->over_res, name);
+ if (v)
+ return v;
+
+ 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);
+}
+
+const char *res_get_def(Res r, const char *name, const char *def)
{
- if (!res_init)
- reread ();
+ const char *t;
+
+ if (!(t = res_get(r, name)))
+ {
+ if (def)
+ yaz_log(YLOG_DEBUG, "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_set(Res r, const char *name, const char *value)
+{
+ struct res_entry *re;
+ assert(r);
+ if (!value)
+ return;
+ for (re = r->first; re; re=re->next)
+ if (re->value && !yaz_matchstr(re->name, name))
+ {
+ xfree(re->value);
+ re->value = xstrdup_env(value);
+ return;
+ }
+ re = add_entry(r);
+ re->name = xstrdup(name);
+ re->value = xstrdup_env(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;
+
+ if (!r)
+ return 0;
+ no = res_trav(r->over_res, prefix, p, f);
+ if (no)
+ return no;
+ if (prefix)
+ l = strlen(prefix);
+ 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;
+}
+
+
+ZEBRA_RES res_write_file(Res r, const char *fname)
+{
+ struct res_entry *re;
+ FILE *fr;
+
+ assert(r);
+ fr = fopen(fname, "w");
+ if (!fr)
+ {
+ yaz_log(YLOG_FATAL|YLOG_ERRNO, "Cannot create `%s'", fname);
+ return ZEBRA_FAIL;
+ }
+
+ 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 ZEBRA_OK;
+}
+
+ZEBRA_RES res_get_int(Res r, const char *name, int *val)
+{
+ const char *cp = res_get(r, name);
+ if (cp)
+ {
+ if (sscanf(cp, "%d", val) == 1)
+ return ZEBRA_OK;
+ yaz_log(YLOG_WARN, "Expected integer for resource %s", name);
+ }
+ return ZEBRA_FAIL;
+}
+
+
+void res_add(Res r, const char *name, const char *value)
+{
+ struct res_entry *re;
+ assert(r);
+ assert(name);
+ assert(value);
+ yaz_log(YLOG_RES, "res_add res=%p, name=%s, value=%s", r, name, value);
+ re = add_entry(r);
+ re->name = xstrdup(name);
+ re->value = xstrdup_env(value);
+}
+
+void res_dump(Res r, int level)
+{
+ struct res_entry *re;
+
+ if (!r)
+ return;
+
+ for (re = r->first; re; re=re->next) {
+ printf("%*s - %s:='%s'\n",level * 4,"",re->name,re->value);
+ }
+
+ if (r->def_res) {
+ printf("%*s DEF ",level * 4,"");
+ res_dump(r->def_res, level + 1);
+ }
+
+ if (r->over_res) {
+ printf("%*s OVER ",level * 4,"");
+ res_dump(r->over_res, level + 1);
+ }
+}
+
+int res_check(Res r_i, Res r_v)
+{
+ struct res_entry *e_i;
+ int errors = 0;
+
+ for (e_i = r_i->first; e_i; e_i = e_i->next)
+ {
+ struct res_entry *e_v;
+ for (e_v = r_v->first; e_v; e_v = e_v->next)
+ {
+ int prefix_allowed = 0;
+ int suffix_allowed = 0;
+ const char *name = e_i->name;
+ size_t name_len = strlen(e_i->name);
+ char namez[32];
+ const char *first_dot = 0;
+ const char *second_dot = 0;
+
+ if (strchr(e_v->value, 'p'))
+ prefix_allowed = 1;
+ if (strchr(e_v->value, 's'))
+ suffix_allowed = 1;
+
+ first_dot = strchr(name, '.');
+ if (prefix_allowed && first_dot)
+ {
+ name = first_dot+1;
+ name_len = strlen(name);
+ }
+ second_dot = strchr(name, '.');
+ if (suffix_allowed && second_dot)
+ {
+ name_len = second_dot - name;
+ }
+ if (name_len < sizeof(namez)-1)
+ {
+ memcpy(namez, name, name_len);
+ namez[name_len] = '\0';
+ if (!yaz_matchstr(namez, e_v->name))
+ break;
+ }
+ /* for case 'a.b' we have to check 'a' as well */
+ if (prefix_allowed && suffix_allowed && first_dot && !second_dot)
+ {
+ name = e_i->name;
+ name_len = first_dot - name;
+ if (name_len < sizeof(namez)-1)
+ {
+ memcpy(namez, name, name_len);
+ namez[name_len] = '\0';
+ if (!yaz_matchstr(namez, e_v->name))
+ break;
+ }
+ }
+ }
+ if (!e_v)
+ {
+ yaz_log(YLOG_WARN, "The following setting is unrecognized: %s",
+ e_i->name);
+ errors++;
+ }
+ }
+ return errors;
+}
+
+/*
+ * Local variables:
+ * c-basic-offset: 4
+ * c-file-style: "Stroustrup"
+ * indent-tabs-mode: nil
+ * End:
+ * vim: shiftwidth=4 tabstop=8 expandtab
+ */
projects / idzebra-moved-to-github.git / blobdiff