codaconf.h

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/* BLURB lgpl
 
                           Coda File System
                              Release 6
 
          Copyright (c) 1987-2003 Carnegie Mellon University
                  Additional copyrights listed below
 
This  code  is  distributed "AS IS" without warranty of any kind under
the  terms of the  GNU  Library General Public Licence  Version 2,  as
shown in the file LICENSE. The technical and financial contributors to
Coda are listed in the file CREDITS.
 
                        Additional copyrights
                           none currently
 
#*/
 
#ifndef _CODACONF_H_
#define _CODACONF_H_
 
#ifdef __cplusplus
extern "C" {
#endif
 
/* Useful globals,
 * codaconf_quiet, make conf_init shut up about not finding the configuration
 *         file. */
extern int codaconf_quiet;
 
/* conf_init reads (or merges) the name=value tuples from the conffile. If a
 * name is seen multiple times, only the last value is remembered. Empty lines
 * and lines starting with '#' are ignored. */
int codaconf_init_one(const char *conffile);
 
/* conf_lookup returns the value associated with name, or NULL on error. */
const char *codaconf_lookup(const char *name, const char *defaultvalue);
 
/* conf_free releases all resources allocated for the configuration data */
void codaconf_free(void);
 
/* helpers */
 
/* codaconf_file searches all directories specified by the environment variable
 *       CODACONFPATH for 'confname'.
 * codaconf_init uses codaconf_file to find a configuration file and then calls
 *       conf_init on this file.
 *
 * If the CODACONFPATH is not present the search defaults to,
 *  @sysconfdir@:/usr/local/etc/coda:/etc/coda
 */
int codaconf_init(const char *confname);
char *codaconf_file(const char *confname);
 
#include "coda_string.h"
 
#define CODACONF_STR(var, key, defval)      \
    if (var == NULL || *var == '\0') {      \
        var = codaconf_lookup(key, defval); \
    }
#define CODACONF_INT(var, key, defval)           \
    {                                            \
        char t[256];                             \
        snprintf(t, 255, "%d", defval);          \
        t[255] = '\0';                           \
        if (var == 0) {                          \
            var = atoi(codaconf_lookup(key, t)); \
        }                                        \
    }
 
#ifdef __cplusplus
}
#endif
 
#endif /* _CODACONF_H_ */