156 lines
4.0 KiB
C
156 lines
4.0 KiB
C
/*++
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/* NAME
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/* mail_conf_bool 3
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/* SUMMARY
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/* boolean-valued configuration parameter support
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/* SYNOPSIS
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/* #include <mail_conf.h>
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/*
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/* int get_mail_conf_bool(name, defval)
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/* const char *path;
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/* const char *name;
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/* int defval;
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/*
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/* int get_mail_conf_bool_fn(name, defval)
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/* const char *path;
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/* const char *name;
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/* int (*defval)();
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/*
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/* void set_mail_conf_bool(name, value)
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/* const char *name;
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/* int value;
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/*
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/* void get_mail_conf_bool_table(table)
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/* CONFIG_BOOL_TABLE *table;
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/*
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/* void get_mail_conf_bool_fn_table(table)
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/* CONFIG_BOOL_TABLE *table;
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/* DESCRIPTION
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/* This module implements configuration parameter support for
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/* boolean values. The internal representation is zero (false)
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/* and non-zero (true). The external representation is "no"
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/* (false) and "yes" (true). The conversion from external
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/* representation is case insensitive.
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/*
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/* get_mail_conf_bool() looks up the named entry in the global
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/* configuration dictionary. The specified default value is
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/* returned when no value was found.
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/*
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/* get_mail_conf_bool_fn() is similar but specifies a function that
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/* provides the default value. The function is called only
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/* when the default value is needed.
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/*
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/* set_mail_conf_bool() updates the named entry in the global
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/* configuration dictionary. This has no effect on values that
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/* have been looked up earlier via the get_mail_conf_XXX() routines.
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/*
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/* get_mail_conf_bool_table() and get_mail_conf_int_fn_table() initialize
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/* lists of variables, as directed by their table arguments. A table
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/* must be terminated by a null entry.
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/* DIAGNOSTICS
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/* Fatal errors: malformed boolean value.
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/* SEE ALSO
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/* config(3) general configuration
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/* mail_conf_str(3) string-valued configuration parameters
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/* mail_conf_int(3) integer-valued configuration 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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#include <string.h>
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#ifdef STRCASECMP_IN_STRINGS_H
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#include <strings.h>
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#endif
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/* Utility library. */
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#include <msg.h>
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#include <dict.h>
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/* Global library. */
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#include "mail_conf.h"
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/* convert_mail_conf_bool - look up and convert boolean parameter value */
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static int convert_mail_conf_bool(const char *name, int *intval)
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{
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const char *strval;
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if ((strval = mail_conf_lookup_eval(name)) == 0) {
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return (0);
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} else {
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if (strcasecmp(strval, CONFIG_BOOL_YES) == 0) {
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*intval = 1;
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} else if (strcasecmp(strval, CONFIG_BOOL_NO) == 0) {
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*intval = 0;
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} else {
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msg_fatal("bad boolean configuration: %s = %s", name, strval);
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}
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return (1);
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}
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}
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/* get_mail_conf_bool - evaluate boolean-valued configuration variable */
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int get_mail_conf_bool(const char *name, int defval)
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{
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int intval;
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if (convert_mail_conf_bool(name, &intval) == 0)
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set_mail_conf_bool(name, intval = defval);
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return (intval);
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}
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/* get_mail_conf_bool_fn - evaluate boolean-valued configuration variable */
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typedef int (*stupid_indent_int) (void);
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int get_mail_conf_bool_fn(const char *name, stupid_indent_int defval)
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{
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int intval;
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if (convert_mail_conf_bool(name, &intval) == 0)
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set_mail_conf_bool(name, intval = defval());
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return (intval);
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}
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/* set_mail_conf_bool - update boolean-valued configuration dictionary entry */
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void set_mail_conf_bool(const char *name, int value)
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{
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mail_conf_update(name, value ? CONFIG_BOOL_YES : CONFIG_BOOL_NO);
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}
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/* get_mail_conf_bool_table - look up table of booleans */
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void get_mail_conf_bool_table(CONFIG_BOOL_TABLE *table)
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{
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while (table->name) {
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table->target[0] = get_mail_conf_bool(table->name, table->defval);
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table++;
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}
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}
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/* get_mail_conf_bool_fn_table - look up booleans, defaults are functions */
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void get_mail_conf_bool_fn_table(CONFIG_BOOL_FN_TABLE *table)
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{
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while (table->name) {
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table->target[0] = get_mail_conf_bool_fn(table->name, table->defval);
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table++;
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}
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}
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