Adding upstream version 3.4.23.upstream/3.4.23upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 251 insertions, 0 deletions

diff --git a/src/local/local.h b/src/local/local.h
new file mode 100644
index 0000000..4052000
--- /dev/null
+++ b/src/local/local.h
@@ -0,0 +1,251 @@
+/*++
+/* NAME
+/*	local 3h
+/* SUMMARY
+/*	local mail delivery
+/* SYNOPSIS
+/*	#include "local.h"
+/* DESCRIPTION
+/* .nf
+
+ /*
+  * Utility library.
+  */
+#include <htable.h>
+#include <vstream.h>
+#include <vstring.h>
+
+ /*
+  * Global library.
+  */
+#include <been_here.h>
+#include <tok822.h>
+#include <deliver_request.h>
+#include <mbox_conf.h>
+#include <maps.h>
+#include <dsn_buf.h>
+#include <dsn.h>
+#include <delivered_hdr.h>
+
+ /*
+  * User attributes: these control the privileges for delivery to external
+  * commands, external files, or mailboxes, and the initial environment of
+  * external commands.
+  */
+typedef struct USER_ATTR {
+    uid_t   uid;			/* file/command access */
+    gid_t   gid;			/* file/command access */
+    char   *home;			/* null or home directory */
+    char   *logname;			/* null or login name */
+    char   *shell;			/* null or login shell */
+} USER_ATTR;
+
+ /*
+  * Critical macros. Not for obscurity, but to ensure consistency.
+  */
+#define RESET_USER_ATTR(usr_attr, level) { \
+	usr_attr.uid = 0; usr_attr.gid = 0; usr_attr.home = 0; \
+	usr_attr.logname = 0; usr_attr.shell = 0; \
+	if (msg_verbose) \
+	    msg_info("%s[%d]: reset user_attr", myname, level); \
+    }
+
+#define SET_USER_ATTR(usr_attr, pwd, level) { \
+	usr_attr.uid = pwd->pw_uid; usr_attr.gid = pwd->pw_gid; \
+	usr_attr.home = pwd->pw_dir; usr_attr.logname = pwd->pw_name; \
+	usr_attr.shell = pwd->pw_shell; \
+	if (msg_verbose) \
+	    msg_info("%s[%d]: set user_attr: %s", \
+		myname, level, pwd->pw_name); \
+    }
+
+ /*
+  * The delivery attributes are inherited from files, from aliases, and from
+  * whatnot. Some of the information is changed on the fly. DELIVER_ATTR
+  * structures are therefore passed by value, so there is no need to undo
+  * changes.
+  */
+typedef struct DELIVER_ATTR {
+    int     level;			/* recursion level */
+    VSTREAM *fp;			/* open queue file */
+    char   *queue_name;			/* mail queue id */
+    char   *queue_id;			/* mail queue id */
+    long    offset;			/* data offset */
+    char   *encoding;			/* MIME encoding */
+    int     smtputf8;			/* from delivery request */
+    const char *sender;			/* taken from envelope */
+    char   *dsn_envid;			/* DSN envelope ID */
+    int     dsn_ret;			/* DSN headers/full */
+    RECIPIENT rcpt;			/* from delivery request */
+    char   *domain;			/* recipient domain */
+    char   *local;			/* recipient full localpart */
+    char   *user;			/* recipient localpart, base name */
+    char   *extension;			/* recipient localpart, extension */
+    char   *unmatched;			/* unmatched extension */
+    const char *owner;			/* null or list owner */
+    const char *delivered;		/* for loop detection */
+    char   *relay;			/* relay host */
+    MSG_STATS msg_stats;		/* time profile */
+    int     exp_type;			/* expansion type. see below */
+    char   *exp_from;			/* expanded_from */
+    DELIVER_REQUEST *request;		/* the kitchen sink */
+    DSN_BUF *why;			/* delivery status */
+} DELIVER_ATTR;
+
+extern void deliver_attr_init(DELIVER_ATTR *);
+extern void deliver_attr_dump(DELIVER_ATTR *);
+extern void deliver_attr_free(DELIVER_ATTR *);
+
+#define EXPAND_TYPE_ALIAS	(1<<0)
+#define EXPAND_TYPE_FWD		(1<<1)
+#define EXPAND_TYPE_INCL	(1<<2)
+
+ /*
+  * Rather than schlepping around dozens of arguments, here is one that has
+  * all. Well, almost. The user attributes are just a bit too sensitive, so
+  * they are passed around separately.
+  */
+typedef struct LOCAL_STATE {
+    int     level;			/* nesting level, for logging */
+    DELIVER_ATTR msg_attr;		/* message attributes */
+    BH_TABLE *dup_filter;		/* internal duplicate filter */
+    DELIVERED_HDR_INFO *loop_info;	/* external loop filter */
+    DELIVER_REQUEST *request;		/* as from queue manager */
+} LOCAL_STATE;
+
+#define RESET_OWNER_ATTR(msg_attr, level) { \
+	msg_attr.owner = 0; \
+	if (msg_verbose) \
+	    msg_info("%s[%d]: reset owner attr", myname, level); \
+    }
+
+#define SET_OWNER_ATTR(msg_attr, who, level) { \
+	msg_attr.sender = msg_attr.owner = who; \
+	if (msg_verbose) \
+	    msg_info("%s[%d]: set owner attr: %s", \
+		    myname, level, who); \
+    }
+
+ /*
+  * Bundle up some often-user attributes.
+  */
+#define BOUNCE_FLAGS(request)	DEL_REQ_TRACE_FLAGS((request)->flags)
+
+#define BOUNCE_ATTR(attr) \
+	attr.queue_id, &attr.msg_stats, &attr.rcpt, attr.relay, \
+	DSN_FROM_DSN_BUF(attr.why)
+#define BOUNCE_ONE_ATTR(attr) \
+	attr.queue_name, attr.queue_id, attr.encoding, attr.smtputf8, \
+	attr.sender, attr.dsn_envid, attr.dsn_ret, \
+	&attr.msg_stats, &attr.rcpt, attr.relay, \
+	DSN_FROM_DSN_BUF(attr.why)
+#define SENT_ATTR(attr) \
+	attr.queue_id, &attr.msg_stats, &attr.rcpt, attr.relay, \
+	DSN_FROM_DSN_BUF(attr.why)
+#define OPENED_ATTR(attr) \
+	attr.queue_id, attr.sender
+#define COPY_ATTR(attr) \
+	attr.sender, attr.rcpt.orig_addr, attr.delivered, attr.fp
+
+#define MSG_LOG_STATE(m, p) \
+	msg_info("%s[%d]: local %s recip %s exten %s deliver %s exp_from %s", \
+		m, \
+                p.level, \
+		p.msg_attr.local ? p.msg_attr.local : "" , \
+		p.msg_attr.rcpt.address ? p.msg_attr.rcpt.address : "", \
+		p.msg_attr.extension ? p.msg_attr.extension : "", \
+		p.msg_attr.delivered ? p.msg_attr.delivered : "", \
+		p.msg_attr.exp_from ? p.msg_attr.exp_from : "")
+
+ /*
+  * "inner" nodes of the delivery graph.
+  */
+extern int deliver_recipient(LOCAL_STATE, USER_ATTR);
+extern int deliver_alias(LOCAL_STATE, USER_ATTR, char *, int *);
+extern int deliver_dotforward(LOCAL_STATE, USER_ATTR, int *);
+extern int deliver_include(LOCAL_STATE, USER_ATTR, char *);
+extern int deliver_token(LOCAL_STATE, USER_ATTR, TOK822 *);
+extern int deliver_token_string(LOCAL_STATE, USER_ATTR, char *, int *);
+extern int deliver_token_stream(LOCAL_STATE, USER_ATTR, VSTREAM *, int *);
+extern int deliver_resolve_tree(LOCAL_STATE, USER_ATTR, TOK822 *);
+extern int deliver_resolve_addr(LOCAL_STATE, USER_ATTR, char *);
+
+ /*
+  * "leaf" nodes of the delivery graph.
+  */
+extern int deliver_mailbox(LOCAL_STATE, USER_ATTR, int *);
+extern int deliver_command(LOCAL_STATE, USER_ATTR, const char *);
+extern int deliver_file(LOCAL_STATE, USER_ATTR, char *);
+extern int deliver_indirect(LOCAL_STATE);
+extern int deliver_maildir(LOCAL_STATE, USER_ATTR, char *);
+extern int deliver_unknown(LOCAL_STATE, USER_ATTR);
+
+ /*
+  * Restrictions on delivery to sensitive destinations.
+  */
+extern int local_file_deliver_mask;
+extern int local_cmd_deliver_mask;
+
+ /*
+  * Restrictions on extension propagation.
+  */
+extern int local_ext_prop_mask;
+
+ /*
+  * Mailbox lock protocol.
+  */
+extern int local_mbox_lock_mask;
+
+ /*
+  * When to prepend a Delivered-To: header upon external delivery.
+  */
+#define DELIVER_HDR_CMD		(1<<0)
+#define DELIVER_HDR_FILE	(1<<1)
+#define DELIVER_HDR_FWD		(1<<2)
+
+extern int local_deliver_hdr_mask;
+
+ /*
+  * forward.c
+  */
+extern int forward_init(void);
+extern int forward_append(DELIVER_ATTR);
+extern int forward_finish(DELIVER_REQUEST *, DELIVER_ATTR, int);
+
+ /*
+  * feature.c
+  */
+extern int feature_control(const char *);
+
+ /*
+  * local_expand.c
+  */
+int     local_expand(VSTRING *, const char *, LOCAL_STATE *, USER_ATTR *, const char *);
+
+#define LOCAL_EXP_EXTENSION_MATCHED	(1<<MAC_PARSE_USER)
+
+ /*
+  * alias.c
+  */
+extern MAPS *alias_maps;
+
+ /*
+  * Silly little macros.
+  */
+#define STR(s)	vstring_str(s)
+
+ /*
+  * bounce_workaround.c
+  */
+int     bounce_workaround(LOCAL_STATE);
+
+/* 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
+/*--*/