148 lines
3.9 KiB
C
148 lines
3.9 KiB
C
/*++
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/* NAME
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/* mail_conf 3
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/* SUMMARY
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/* global configuration parameter management
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/* SYNOPSIS
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/* #include <mail_conf.h>
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/*
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/* void mail_conf_read()
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/*
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/* void mail_conf_update(name, value)
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/* const char *name;
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/* const char *value;
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/*
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/* const char *mail_conf_lookup(name)
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/* const char *name;
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/*
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/* const char *mail_conf_eval(string)
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/* const char *string;
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/*
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/* const char *mail_conf_lookup_eval(name)
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/* const char *name;
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/* DESCRIPTION
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/* mail_conf_read() reads the global Postfix configuration file, and
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/* stores its values into a global configuration dictionary.
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/*
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/* The following routines are wrappers around the generic dictionary
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/* access routines.
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/*
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/* mail_conf_update() updates the named global parameter. This has
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/* no effect on parameters whose value has already been looked up.
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/* The update succeeds or the program terminates with fatal error.
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/*
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/* mail_conf_lookup() looks up the value of the named parameter.
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/* A null pointer result means the parameter was not found.
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/* The result is volatile and should be copied if it is to be
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/* used for any appreciable amount of time.
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/*
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/* mail_conf_eval() recursively expands any $parameters in the
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/* string argument. The result is volatile and should be copied
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/* if it is to be used for any appreciable amount of time.
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/*
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/* mail_conf_lookup_eval() looks up the named parameter, and expands any
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/* $parameters in the result. The result is volatile and should be
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/* copied if it is to be used for any appreciable amount of time.
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/* DIAGNOSTICS
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/* Fatal errors: malformed numerical value.
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/* FILES
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/* /etc/postfix: default Postfix configuration directory.
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/* ENVIRONMENT
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/* MAIL_CONFIG, non-default configuration database
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/* MAIL_VERBOSE, enable verbose mode
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/* SEE ALSO
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/* dict(3) generic dictionary manager
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/* mail_conf_int(3) integer-valued parameters
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/* mail_conf_str(3) string-valued parameters
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/* LICENSE
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/* .ad
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/* .fi
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/* The Secure Mailer license must be distributed with this software.
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/* AUTHOR(S)
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/* Wietse Venema
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/* IBM T.J. Watson Research
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/* P.O. Box 704
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/* Yorktown Heights, NY 10598, USA
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/*--*/
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/* System library. */
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#include <sys_defs.h>
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#include <stdlib.h>
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/* Utility library. */
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#include <msg.h>
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#include <mymalloc.h>
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#include <vstream.h>
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#include <vstring.h>
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#include <dict.h>
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#include <safe.h>
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#include <stringops.h>
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/* Global library. */
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#include "mail_params.h"
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#include "mail_conf.h"
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/* mail_conf_read - read global configuration file */
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void mail_conf_read(void)
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{
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char *config_dir;
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char *path;
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/*
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* Permit references to unknown configuration variable names. We rely on
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* a separate configuration checking tool to spot misspelled names and
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* other kinds of trouble. Enter the configuration directory into the
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* default dictionary.
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*/
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dict_unknown_allowed = 1;
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if (var_config_dir)
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myfree(var_config_dir);
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var_config_dir = mystrdup((config_dir = safe_getenv(CONF_ENV_PATH)) != 0 ?
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config_dir : DEF_CONFIG_DIR); /* XXX */
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set_mail_conf_str(VAR_CONFIG_DIR, var_config_dir);
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path = concatenate(var_config_dir, "/", "main.cf", (char *) 0);
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dict_load_file(CONFIG_DICT, path);
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myfree(path);
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mail_params_init();
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}
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/* mail_conf_eval - expand macros in string */
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const char *mail_conf_eval(const char *string)
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{
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#define RECURSIVE 1
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return (dict_eval(CONFIG_DICT, string, RECURSIVE));
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}
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/* mail_conf_lookup - lookup named variable */
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const char *mail_conf_lookup(const char *name)
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{
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return (dict_lookup(CONFIG_DICT, name));
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}
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/* mail_conf_lookup_eval - expand named variable */
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const char *mail_conf_lookup_eval(const char *name)
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{
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const char *value;
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#define RECURSIVE 1
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if ((value = dict_lookup(CONFIG_DICT, name)) != 0)
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value = dict_eval(CONFIG_DICT, value, RECURSIVE);
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return (value);
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}
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/* mail_conf_update - update parameter */
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void mail_conf_update(const char *key, const char *value)
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{
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dict_update(CONFIG_DICT, key, value);
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}
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