1 files changed, 329 insertions, 0 deletions
diff --git a/src/postconf/postconf.h b/src/postconf/postconf.h
new file mode 100644
index 0000000..24a1ed7
--- /dev/null
+++ b/src/postconf/postconf.h
@@ -0,0 +1,329 @@
+/*++
+/* NAME
+/*	postconf 3h
+/* SUMMARY
+/*	module interfaces
+/* SYNOPSIS
+/*	#include <postconf.h>
+/* DESCRIPTION
+/* .nf
+
+ /*
+  * System library.
+  */
+#include <unistd.h>
+
+ /*
+  * Utility library.
+  */
+#include <htable.h>
+#include <argv.h>
+#include <dict.h>
+#include <name_code.h>
+
+ /*
+  * What we're supposed to be doing.
+  */
+#define PCF_SHOW_NONDEF		(1<<0)	/* show main.cf non-default settings */
+#define PCF_SHOW_DEFS		(1<<1)	/* show main.cf default setting */
+#define PCF_HIDE_NAME		(1<<2)	/* hide main.cf parameter name */
+#define PCF_SHOW_MAPS		(1<<3)	/* show map types */
+#define PCF_EDIT_CONF		(1<<4)	/* edit main.cf or master.cf */
+#define PCF_SHOW_LOCKS		(1<<5)	/* show mailbox lock methods */
+#define PCF_SHOW_EVAL		(1<<6)	/* expand main.cf right-hand sides */
+#define PCF_SHOW_SASL_SERV	(1<<7)	/* show server auth plugin types */
+#define PCF_SHOW_SASL_CLNT	(1<<8)	/* show client auth plugin types */
+#define PCF_COMMENT_OUT		(1<<9)	/* #-out selected main.cf entries */
+#define PCF_MASTER_ENTRY	(1<<10)	/* manage master.cf entries */
+#define PCF_FOLD_LINE		(1<<11)	/* fold long *.cf entries */
+#define PCF_EDIT_EXCL		(1<<12)	/* exclude main.cf entries */
+#define PCF_MASTER_FLD		(1<<13)	/* hierarchical pathname */
+#define PCF_MAIN_PARAM		(1<<14)	/* manage main.cf entries */
+#define PCF_EXP_DSN_TEMPL	(1<<15)	/* expand bounce templates */
+#define PCF_PARAM_CLASS		(1<<16)	/* select parameter class */
+#define PCF_MAIN_OVER		(1<<17)	/* override parameter values */
+#define PCF_DUMP_DSN_TEMPL	(1<<18)	/* show bounce templates */
+#define PCF_MASTER_PARAM	(1<<19)	/* manage master.cf -o name=value */
+#define PCF_HIDE_VALUE		(1<<20)	/* hide main.cf/master.cf =value */
+#define PCF_SHOW_TLS		(1<<21)	/* TLS support introspection */
+
+#define PCF_DEF_MODE	0
+
+ /*
+  * Structure for one "valid parameter" (built-in, service-defined or valid
+  * user-defined). See the postconf_builtin, postconf_service and
+  * postconf_user modules for narrative text.
+  */
+typedef struct {
+    int     flags;			/* see below */
+    void   *param_data;			/* mostly, the default value */
+    const char *(*convert_fn) (void *);	/* value to string */
+} PCF_PARAM_NODE;
+
+ /* Values for flags. See the postconf_node module for narrative text. */
+#define PCF_PARAM_FLAG_RAW	(1<<0)	/* raw parameter value */
+#define PCF_PARAM_FLAG_BUILTIN	(1<<1)	/* built-in parameter name */
+#define PCF_PARAM_FLAG_SERVICE	(1<<2)	/* service-defined parameter name */
+#define PCF_PARAM_FLAG_USER	(1<<3)	/* user-defined parameter name */
+#define PCF_PARAM_FLAG_LEGACY	(1<<4)	/* legacy parameter name */
+#define PCF_PARAM_FLAG_READONLY	(1<<5)	/* legacy parameter name */
+#define PCF_PARAM_FLAG_DBMS	(1<<6)	/* dbms-defined parameter name */
+
+#define PCF_PARAM_MASK_CLASS \
+	(PCF_PARAM_FLAG_BUILTIN | PCF_PARAM_FLAG_SERVICE | PCF_PARAM_FLAG_USER)
+#define PCF_PARAM_CLASS_OVERRIDE(node, class) \
+	((node)->flags = (((node)->flags & ~PCF_PARAM_MASK_CLASS) | (class)))
+
+#define PCF_RAW_PARAMETER(node) ((node)->flags & PCF_PARAM_FLAG_RAW)
+#define PCF_BUILTIN_PARAMETER(node) ((node)->flags & PCF_PARAM_FLAG_BUILTIN)
+#define PCF_SERVICE_PARAMETER(node) ((node)->flags & PCF_PARAM_FLAG_SERVICE)
+#define PCF_USER_PARAMETER(node) ((node)->flags & PCF_PARAM_FLAG_USER)
+#define PCF_LEGACY_PARAMETER(node) ((node)->flags & PCF_PARAM_FLAG_LEGACY)
+#define PCF_READONLY_PARAMETER(node) ((node)->flags & PCF_PARAM_FLAG_READONLY)
+#define PCF_DBMS_PARAMETER(node) ((node)->flags & PCF_PARAM_FLAG_DBMS)
+
+ /* Values for param_data. See postconf_node module for narrative text. */
+#define PCF_PARAM_NO_DATA	((char *) 0)
+
+ /*
+  * Lookup table for global "valid parameter" information.
+  */
+#define PCF_PARAM_TABLE			HTABLE
+#define PCF_PARAM_INFO			HTABLE_INFO
+
+extern PCF_PARAM_TABLE *pcf_param_table;
+
+ /*
+  * postconf_node.c.
+  */
+#define PCF_PARAM_TABLE_CREATE(size)	htable_create(size);
+#define PCF_PARAM_NODE_CAST(ptr)	((PCF_PARAM_NODE *) (ptr))
+
+#define PCF_PARAM_TABLE_LIST(table)	htable_list(table)
+#define PCF_PARAM_INFO_NAME(ht)		((const char *) (ht)->key)
+#define PCF_PARAM_INFO_NODE(ht)		PCF_PARAM_NODE_CAST((ht)->value)
+
+#define PCF_PARAM_TABLE_FIND(table, name) \
+	PCF_PARAM_NODE_CAST(htable_find((table), (name)))
+#define PCF_PARAM_TABLE_LOCATE(table, name) htable_locate((table), (name))
+#define PCF_PARAM_TABLE_ENTER(table, name, flags, data, func) \
+	htable_enter((table), (name), (char *) pcf_make_param_node((flags), \
+	    (data), (func)))
+
+extern PCF_PARAM_NODE *pcf_make_param_node(int, void *, const char *(*) (void *));
+extern const char *pcf_convert_param_node(int, const char *, PCF_PARAM_NODE *);
+extern VSTRING *pcf_param_string_buf;
+
+ /*
+  * Structure of one master.cf entry.
+  */
+typedef struct {
+    char   *name_space;			/* service/type, parameter name space */
+    ARGV   *argv;			/* null, or master.cf fields */
+    DICT   *all_params;			/* null, or all name=value entries */
+    DICT   *ro_params;			/* read-only name=value entries */
+    HTABLE *valid_names;		/* null, or "valid" parameter names */
+} PCF_MASTER_ENT;
+
+#define PCF_MASTER_MIN_FIELDS	8	/* mandatory field minimum */
+
+#define PCF_MASTER_NAME_SERVICE	"service"
+#define PCF_MASTER_NAME_TYPE	"type"
+#define PCF_MASTER_NAME_PRIVATE	"private"
+#define PCF_MASTER_NAME_UNPRIV	"unprivileged"
+#define PCF_MASTER_NAME_CHROOT	"chroot"
+#define PCF_MASTER_NAME_WAKEUP	"wakeup"
+#define PCF_MASTER_NAME_MAXPROC	"process_limit"
+#define PCF_MASTER_NAME_CMD	"command"
+
+#define PCF_MASTER_FLD_SERVICE	0	/* service name */
+#define PCF_MASTER_FLD_TYPE	1	/* service type */
+#define PCF_MASTER_FLD_PRIVATE	2	/* private service */
+#define PCF_MASTER_FLD_UNPRIV	3	/* unprivileged service */
+#define PCF_MASTER_FLD_CHROOT	4	/* chrooted service */
+#define PCF_MASTER_FLD_WAKEUP	5	/* wakeup timer */
+#define PCF_MASTER_FLD_MAXPROC	6	/* process limit */
+#define PCF_MASTER_FLD_CMD	7	/* command */
+
+#define PCF_MASTER_FLD_WILDC	-1	/* wild-card */
+#define PCF_MASTER_FLD_NONE	-2	/* not available */
+
+ /*
+  * Lookup table for master.cf entries. The table is terminated with an entry
+  * that has a null argv member.
+  */
+extern PCF_MASTER_ENT *pcf_master_table;
+
+ /*
+  * Line-wrapping support.
+  */
+#define PCF_LINE_LIMIT	80		/* try to fold longer lines */
+#define PCF_SEPARATORS	" \t\r\n"
+#define PCF_INDENT_LEN	4		/* indent long text by 4 */
+#define PCF_INDENT_TEXT	"    "
+
+ /*
+  * XXX Global so that postconf_builtin.c call-backs can see it.
+  */
+extern int pcf_cmd_mode;
+
+ /*
+  * postconf_misc.c.
+  */
+extern void pcf_set_config_dir(void);
+extern const char *pcf_get_main_path(void);
+extern const char *pcf_get_master_path(void);
+
+ /*
+  * postconf_main.c
+  */
+extern void pcf_read_parameters(void);
+extern void pcf_set_parameters(char **);
+extern void pcf_show_parameters(VSTREAM *, int, int, char **);
+
+ /*
+  * postconf_edit.c
+  */
+extern void pcf_edit_main(int, int, char **);
+extern void pcf_edit_master(int, int, char **);
+
+ /*
+  * postconf_master.c.
+  */
+extern const char pcf_daemon_options_expecting_value[];
+extern void pcf_read_master(int);
+extern void pcf_show_master_entries(VSTREAM *, int, int, char **);
+extern const char *pcf_parse_master_entry(PCF_MASTER_ENT *, const char *);
+extern void pcf_print_master_entry(VSTREAM *, int, PCF_MASTER_ENT *);
+extern void pcf_free_master_entry(PCF_MASTER_ENT *);
+extern void pcf_show_master_fields(VSTREAM *, int, int, char **);
+extern void pcf_edit_master_field(PCF_MASTER_ENT *, int, const char *);
+extern void pcf_show_master_params(VSTREAM *, int, int, char **);
+extern void pcf_edit_master_param(PCF_MASTER_ENT *, int, const char *, const char *);
+
+#define PCF_WARN_ON_OPEN_ERROR	0
+#define PCF_FAIL_ON_OPEN_ERROR	1
+
+#define PCF_MASTER_BLANKS	" \t\r\n"	/* XXX */
+
+ /*
+  * Master.cf parameter namespace management. The idea is to manage master.cf
+  * "-o name=value" settings with other tools than text editors.
+  * 
+  * The natural choice is to use "service-name.service-type.parameter-name", but
+  * unfortunately the '.' may appear in service and parameter names.
+  * 
+  * For example, a spawn(8) listener can have a service name 127.0.0.1:10028.
+  * This service name becomes part of a service-dependent parameter name
+  * "127.0.0.1:10028_time_limit". All those '.' characters mean we can't use
+  * '.' as the parameter namespace delimiter.
+  * 
+  * (We could require that such service names are specified as $foo:port with
+  * the value of "foo" defined in main.cf or at the top of master.cf.)
+  * 
+  * But it is easier if we use '/' instead.
+  */
+#define PCF_NAMESP_SEP_CH	'/'
+#define PCF_NAMESP_SEP_STR	"/"
+
+#define PCF_LEGACY_SEP_CH	'.'
+
+ /*
+  * postconf_match.c.
+  */
+#define PCF_MATCH_WILDC_STR	"*"
+#define PCF_MATCH_ANY(p)		((p)[0] == PCF_MATCH_WILDC_STR[0] && (p)[1] == 0)
+#define PCF_MATCH_STRING(p, s)	(PCF_MATCH_ANY(p) || strcmp((p), (s)) == 0)
+
+extern ARGV *pcf_parse_service_pattern(const char *, int, int);
+extern int pcf_parse_field_pattern(const char *);
+
+#define PCF_IS_MAGIC_SERVICE_PATTERN(pat) \
+    (PCF_MATCH_ANY((pat)->argv[0]) || PCF_MATCH_ANY((pat)->argv[1]))
+#define PCF_MATCH_SERVICE_PATTERN(pat, name, type) \
+    (PCF_MATCH_STRING((pat)->argv[0], (name)) \
+	&& PCF_MATCH_STRING((pat)->argv[1], (type)))
+
+#define pcf_is_magic_field_pattern(pat) ((pat) == PCF_MASTER_FLD_WILDC)
+#define pcf_str_field_pattern(pat) ((const char *) (pcf_field_name_offset[pat].name))
+
+#define PCF_IS_MAGIC_PARAM_PATTERN(pat) PCF_MATCH_ANY(pat)
+#define PCF_MATCH_PARAM_PATTERN(pat, name) PCF_MATCH_STRING((pat), (name))
+
+/* The following is not part of the postconf_match API. */
+extern NAME_CODE pcf_field_name_offset[];
+
+ /*
+  * postconf_builtin.c.
+  */
+extern void pcf_register_builtin_parameters(const char *, pid_t);
+
+ /*
+  * postconf_service.c.
+  */
+extern void pcf_register_service_parameters(void);
+
+ /*
+  * Parameter context structure.
+  */
+typedef struct {
+    PCF_MASTER_ENT *local_scope;
+    int     param_class;
+} PCF_PARAM_CTX;
+
+ /*
+  * postconf_user.c.
+  */
+extern void pcf_register_user_parameters(void);
+
+ /*
+  * postconf_dbms.c
+  */
+extern void pcf_register_dbms_parameters(const char *,
+	              const char *(*) (const char *, int, PCF_MASTER_ENT *),
+					         PCF_MASTER_ENT *);
+
+ /*
+  * postconf_lookup.c.
+  */
+extern const char *pcf_lookup_parameter_value(int, const char *,
+					              PCF_MASTER_ENT *,
+					              PCF_PARAM_NODE *);
+
+extern char *pcf_expand_parameter_value(VSTRING *, int, const char *,
+					        PCF_MASTER_ENT *);
+
+ /*
+  * postconf_print.c.
+  */
+extern void PRINTFLIKE(3, 4) pcf_print_line(VSTREAM *, int, const char *,...);
+
+ /*
+  * postconf_unused.c.
+  */
+extern void pcf_flag_unused_main_parameters(void);
+extern void pcf_flag_unused_master_parameters(void);
+
+ /*
+  * postconf_other.c.
+  */
+extern void pcf_show_maps(void);
+extern void pcf_show_locks(void);
+extern void pcf_show_sasl(int);
+extern void pcf_show_tls(const char *);
+
+/* 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
+/*
+/*	Wietse Venema
+/*	Google, Inc.
+/*	111 8th Avenue
+/*	New York, NY 10011, USA
+/*--*/