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Diffstat (limited to '')
| -rw-r--r-- | src/global/mail_conf_nbool.c | 158 |
1 files changed, 158 insertions, 0 deletions
diff --git a/src/global/mail_conf_nbool.c b/src/global/mail_conf_nbool.c new file mode 100644 index 0000000..3ffa6f4 --- /dev/null +++ b/src/global/mail_conf_nbool.c @@ -0,0 +1,158 @@ +/*++ +/* NAME +/* mail_conf_nbool 3 +/* SUMMARY +/* boolean-valued configuration parameter support +/* SYNOPSIS +/* #include <mail_conf.h> +/* +/* int get_mail_conf_nbool(name, defval) +/* const char *name; +/* const char *defval; +/* +/* int get_mail_conf_nbool_fn(name, defval) +/* const char *name; +/* const char *(*defval)(); +/* +/* void set_mail_conf_nbool(name, value) +/* const char *name; +/* const char *value; +/* +/* void get_mail_conf_nbool_table(table) +/* const CONFIG_NBOOL_TABLE *table; +/* +/* void get_mail_conf_nbool_fn_table(table) +/* const CONFIG_NBOOL_TABLE *table; +/* DESCRIPTION +/* This module implements configuration parameter support for +/* boolean values. The internal representation is zero (false) +/* and non-zero (true). The external representation is "no" +/* (false) and "yes" (true). The conversion from external +/* representation is case insensitive. Unlike mail_conf_bool(3) +/* the default is a string value which is subject to macro expansion. +/* +/* get_mail_conf_nbool() looks up the named entry in the global +/* configuration dictionary. The specified default value is +/* returned when no value was found. +/* +/* get_mail_conf_nbool_fn() is similar but specifies a function that +/* provides the default value. The function is called only +/* when the default value is needed. +/* +/* set_mail_conf_nbool() updates the named entry in the global +/* configuration dictionary. This has no effect on values that +/* have been looked up earlier via the get_mail_conf_XXX() routines. +/* +/* get_mail_conf_nbool_table() and get_mail_conf_int_fn_table() initialize +/* lists of variables, as directed by their table arguments. A table +/* must be terminated by a null entry. +/* DIAGNOSTICS +/* Fatal errors: malformed boolean value. +/* SEE ALSO +/* config(3) general configuration +/* mail_conf_str(3) string-valued configuration parameters +/* mail_conf_int(3) integer-valued configuration parameters +/* LICENSE +/* .ad +/* .fi +/* The Secure Mailer license must be distributed with this software. +/* AUTHOR(S) +/* Wietse Venema +/* IBM T.J. Watson Research +/* P.O. Box 704 +/* Yorktown Heights, NY 10598, USA +/*--*/ + +/* System library. */ + +#include <sys_defs.h> +#include <stdlib.h> +#include <string.h> + +#ifdef STRCASECMP_IN_STRINGS_H +#include <strings.h> +#endif + +/* Utility library. */ + +#include <msg.h> +#include <dict.h> + +/* Global library. */ + +#include "mail_conf.h" + +/* convert_mail_conf_nbool - look up and convert boolean parameter value */ + +static int convert_mail_conf_nbool(const char *name, int *intval) +{ + const char *strval; + + if ((strval = mail_conf_lookup_eval(name)) == 0) { + return (0); + } else { + if (strcasecmp(strval, CONFIG_BOOL_YES) == 0) { + *intval = 1; + } else if (strcasecmp(strval, CONFIG_BOOL_NO) == 0) { + *intval = 0; + } else { + msg_fatal("bad boolean configuration: %s = %s", name, strval); + } + return (1); + } +} + +/* get_mail_conf_nbool - evaluate boolean-valued configuration variable */ + +int get_mail_conf_nbool(const char *name, const char *defval) +{ + int intval; + + if (convert_mail_conf_nbool(name, &intval) == 0) + set_mail_conf_nbool(name, defval); + if (convert_mail_conf_nbool(name, &intval) == 0) + msg_panic("get_mail_conf_nbool: parameter not found: %s", name); + return (intval); +} + +/* get_mail_conf_nbool_fn - evaluate boolean-valued configuration variable */ + +typedef const char *(*stupid_indent_int) (void); + +int get_mail_conf_nbool_fn(const char *name, stupid_indent_int defval) +{ + int intval; + + if (convert_mail_conf_nbool(name, &intval) == 0) + set_mail_conf_nbool(name, defval()); + if (convert_mail_conf_nbool(name, &intval) == 0) + msg_panic("get_mail_conf_nbool_fn: parameter not found: %s", name); + return (intval); +} + +/* set_mail_conf_nbool - update boolean-valued configuration dictionary entry */ + +void set_mail_conf_nbool(const char *name, const char *value) +{ + mail_conf_update(name, value); +} + +/* get_mail_conf_nbool_table - look up table of booleans */ + +void get_mail_conf_nbool_table(const CONFIG_NBOOL_TABLE *table) +{ + while (table->name) { + table->target[0] = get_mail_conf_nbool(table->name, table->defval); + table++; + } +} + +/* get_mail_conf_nbool_fn_table - look up booleans, defaults are functions */ + +void get_mail_conf_nbool_fn_table(const CONFIG_NBOOL_FN_TABLE *table) +{ + while (table->name) { + table->target[0] = get_mail_conf_nbool_fn(table->name, table->defval); + table++; + } +} |