- use standard glob exclusion

[packages/postfix.git] / postfix-dynamicmaps.patch

--- postfix-1.1.3.orig/conf/dynamicmaps.cf
+++ postfix-1.1.3/conf/dynamicmaps.cf
@@ -0,0 +1,9 @@
+# Postfix dynamic maps configuration file.
+#
+# The first match found is the one that is used.  The only wildcard
+# allowed is '*', which matches everything.  The first %s is expanded
+# to the map type.
+#
+#type	location of .so file			name of open function
+#====	================================	=====================
+*	/usr/lib/postfix/dict_%s.so		dict_%s_open
--- postfix-1.1.3.orig/src/dns/Makefile.in
+++ postfix-1.1.3/src/dns/Makefile.in
@@ -15,7 +15,7 @@
 LIB_DIR	= ../../lib
 INC_DIR	= ../../include
 
-.c.o:;	$(CC) $(CFLAGS) -c $*.c
+.c.o:;	$(CC) -fPIC $(CFLAGS) -c $*.c
 
 all: $(LIB)
 
@@ -25,12 +25,10 @@
 test:	$(TESTPROG)
 
 $(LIB):	$(OBJS)
-	$(AR) $(ARFL) $(LIB) $?
-	$(RANLIB) $(LIB)
+	gcc -shared -Wl,-soname,libpostfix-dns.so.1 -o $(LIB) $(OBJS)
 
 $(LIB_DIR)/$(LIB): $(LIB)
 	cp $(LIB) $(LIB_DIR)
-	$(RANLIB) $(LIB_DIR)/$(LIB)
 
 update: $(LIB_DIR)/$(LIB) $(HDRS)
 	-for i in $(HDRS); \
--- postfix-1.1.3.orig/src/global/Makefile.in
+++ postfix-1.1.3/src/global/Makefile.in
@@ -76,8 +76,9 @@
 LIB_DIR	= ../../lib
 INC_DIR	= ../../include
 MAKES	=
+LDAPSO  = dict_ldap.so
 
-.c.o:;	$(CC) $(CFLAGS) -c $*.c
+.c.o:;	$(CC) -fPIC $(CFLAGS) -c $*.c
 
 all: $(LIB)
 
@@ -87,14 +88,21 @@
 test:	$(TESTPROG)
 
 $(LIB):	$(OBJS)
-	$(AR) $(ARFL) $(LIB) $?
-	$(RANLIB) $(LIB)
+	gcc -shared -Wl,-soname,libpostfix-global.so.1 -o $(LIB) $(OBJS)
+
+$(LDAPSO): dict_ldap.o
+	gcc -shared -Wl,-soname,dict_ldap.so -o $@ $? -lldap -llber -L../../lib -lutil -L. -lglobal
+
+dict_ldap.c:	../util/dict_ldap.c
+	ln -f $? $@
 
 $(LIB_DIR)/$(LIB): $(LIB)
 	cp $(LIB) $(LIB_DIR)
-	$(RANLIB) $(LIB_DIR)/$(LIB)
 
-update: $(LIB_DIR)/$(LIB) $(HDRS)
+$(LIB_DIR)/$(LDAPSO): $(LDAPSO)
+	cp $(LDAPSO) $(LIB_DIR)
+
+update: $(LIB_DIR)/$(LIB) $(LIB_DIR)/${LDAPSO} $(HDRS)
 	-for i in $(HDRS); \
 	do \
 	  cmp -s $$i $(INC_DIR)/$$i 2>/dev/null || cp $$i $(INC_DIR); \
@@ -232,7 +240,7 @@
 	lint $(DEFS) $(SRCS) $(LINTFIX)
 
 clean:
-	rm -f *.o $(LIB) *core $(TESTPROG) junk
+	rm -f *.o $(LIB) $(LDAPSO) dict_ldap.c *core $(TESTPROG) junk
 	rm -rf printfck
 
 tidy:	clean
@@ -508,6 +516,8 @@
 dict_proxy.o: mail_params.h
 dict_proxy.o: clnt_stream.h
 dict_proxy.o: dict_proxy.h
+dict_ldap.o: dict_ldap.c
+dict_ldap.o: ../../include/sys_defs.h
 domain_list.o: domain_list.c
 domain_list.o: ../../include/sys_defs.h
 domain_list.o: ../../include/match_list.h
--- postfix-1.1.3.orig/src/global/mail_conf.c
+++ postfix-1.1.3/src/global/mail_conf.c
@@ -175,6 +175,13 @@
     path = concatenate(var_config_dir, "/", "main.cf", (char *) 0);
     dict_load_file(CONFIG_DICT, path);
     myfree(path);
+
+#ifndef NO_DYNAMIC_MAPS
+    path = concatenate(var_config_dir, "/", "dynamicmaps.cf", (char *) 0);
+    dict_open_dlinfo(path);
+    myfree(path);
+#endif
+
 }
 
 /* mail_conf_eval - expand macros in string */
--- postfix-1.1.3.orig/src/global/mail_params.c
+++ postfix-1.1.3/src/global/mail_params.c
@@ -148,6 +148,8 @@
 #ifdef HAS_DB
 #include <dict_db.h>
 #endif
+#include <safe_open.h>
+#include <mymalloc.h>

 /* Global library. */

@@ -204,6 +206,7 @@
 char   *var_debug_peer_list;
 int     var_debug_peer_level;
 char   *var_reject_reply_msg_access_denied;
+int     var_command_maxtime;
 int     var_fault_inj_code;

 #define MAIN_CONF_FILE "main.cf"
@@ -367,6 +370,38 @@
 		  (long) var_sgid_gid);
 }
 
+static char *read_file(const char *name)
+{
+    char *ret;
+    VSTRING *why=vstring_alloc(1);
+    VSTRING *new_name=vstring_alloc(1);
+    VSTREAM *vp=safe_open(name, O_RDONLY, 0, NULL, -1, -1, why);
+
+    /*
+     * Ugly macros to make complex expressions less unreadable.
+     */
+#define SKIP(start, var, cond) \
+	for (var = start; *var && (cond); var++);
+
+#define TRIM(s) { \
+	char *p; \
+	for (p = (s) + strlen(s); p > (s) && ISSPACE(p[-1]); p--); \
+	*p = 0; \
+    }
+
+    if (!vp) {
+	msg_fatal("%s: unable to open: %s",name,vstring_str(why));
+    }
+    vstring_get_nonl(new_name,vp);
+    vstream_fclose(vp);
+    SKIP(vstring_str(new_name),ret,ISSPACE(*ret));
+    ret=mystrdup(ret);
+    TRIM(ret);
+    vstring_free(why);
+    vstring_free(new_name);
+    return ret;
+}
+
 /* mail_params_init - configure built-in parameters */
 
 void    mail_params_init()
@@ -481,6 +516,9 @@
      * Variables that are needed by almost every program.
      */
     get_mail_conf_str_table(other_str_defaults);
+    if (*var_myorigin=='/') {
+	var_myorigin=read_file(var_myorigin);
+    }
     get_mail_conf_int_table(other_int_defaults);
     get_mail_conf_bool_table(bool_defaults);
     get_mail_conf_time_table(time_defaults);
--- postfix-1.1.3.orig/src/master/Makefile.in
+++ postfix-1.1.3/src/master/Makefile.in
@@ -23,7 +23,7 @@
 INC_DIR	= ../../include
 BIN_DIR	= ../../libexec
 
-.c.o:;	$(CC) $(CFLAGS) -c $*.c
+.c.o:;	$(CC) `for i in $(LIB_OBJ); do [ $$i = $@ ] && echo -fPIC; done` $(CFLAGS) -c $*.c
 
 all:	$(PROG) $(LIB)
 
@@ -36,12 +36,10 @@
 test:	$(TESTPROG)
 
 $(LIB):	$(LIB_OBJ)
-	$(AR) $(ARFL) $(LIB) $?
-	$(RANLIB) $(LIB)
+	gcc -shared -Wl,-soname,libpostfix-master.so.1 -o $(LIB) $(LIB_OBJ)
 
 $(LIB_DIR)/$(LIB): $(LIB)
 	cp $(LIB) $(LIB_DIR)/$(LIB)
-	$(RANLIB) $(LIB_DIR)/$(LIB)
 
 $(BIN_DIR)/$(PROG): $(PROG)
 	 cp $(PROG) $(BIN_DIR)
--- postfix-1.1.5.orig/src/util/Makefile.in
+++ postfix-1.1.5/src/util/Makefile.in
@@ -3,7 +3,7 @@
 	attr_scan0.c attr_scan64.c base64_code.c basename.c binhash.c \
 	chroot_uid.c clean_env.c close_on_exec.c concatenate.c ctable.c \
 	dict.c dict_alloc.c dict_db.c dict_dbm.c dict_debug.c dict_env.c \
-	dict_ht.c dict_ldap.c dict_mysql.c dict_ni.c dict_nis.c \
+	dict_ht.c dict_mysql.c dict_ni.c dict_nis.c \
 	dict_nisplus.c dict_open.c dict_pcre.c dict_regexp.c dict_static.c \
 	dict_tcp.c dict_unix.c dir_forest.c doze.c duplex_pipe.c \
 	environ.c events.c exec_command.c fifo_listen.c fifo_trigger.c \
@@ -26,13 +26,13 @@
 	unix_connect.c unix_listen.c unix_trigger.c unsafe.c username.c \
 	valid_hostname.c vbuf.c vbuf_print.c vstream.c vstream_popen.c \
 	vstring.c vstring_vstream.c watchdog.c writable.c write_buf.c \
-	write_wait.c strcasecmp.c nvtable.c host_port.c dict_sdbm.c sdbm.c
+	write_wait.c strcasecmp.c nvtable.c host_port.c dict_sdbm.c sdbm.c load_lib.c
 OBJS	= alldig.o argv.o argv_split.o attr_print0.o attr_print64.o \
 	attr_scan0.o attr_scan64.o base64_code.o basename.o binhash.o \
 	chroot_uid.o clean_env.o close_on_exec.o concatenate.o ctable.o \
 	dict.o dict_alloc.o dict_db.o dict_dbm.o dict_debug.o dict_env.o \
-	dict_ht.o dict_ldap.o dict_mysql.o dict_ni.o dict_nis.o \
-	dict_nisplus.o dict_open.o dict_pcre.o dict_regexp.o dict_static.o \
+	dict_ht.o dict_ni.o dict_nis.o \
+	dict_nisplus.o dict_open.o dict_regexp.o dict_static.o \
 	dict_tcp.o dict_unix.o dir_forest.o doze.o duplex_pipe.o \
 	environ.o events.o exec_command.o fifo_listen.o fifo_trigger.o \
 	file_limit.o find_inet.o fsspace.o fullname.o get_domainname.o \
@@ -54,7 +54,7 @@
 	unix_connect.o unix_listen.o unix_trigger.o unsafe.o username.o \
 	valid_hostname.o vbuf.o vbuf_print.o vstream.o vstream_popen.o \
 	vstring.o vstring_vstream.o watchdog.o writable.o write_buf.o \
-	write_wait.o nvtable.o $(STRCASE) host_port.o dict_sdbm.o sdbm.o
+	write_wait.o nvtable.o $(STRCASE) host_port.o dict_sdbm.o sdbm.o load_lib.o
 HDRS	= argv.h attr.h base64_code.h binhash.h chroot_uid.h clean_env.h \
 	connect.h ctable.h dict.h dict_db.h dict_dbm.h dict_env.h \
 	dict_ht.h dict_ldap.h dict_mysql.h dict_ni.h dict_nis.h \
@@ -71,7 +71,7 @@
 	scan_dir.h set_eugid.h set_ugid.h sigdelay.h spawn_command.h \
 	split_at.h stat_as.h stringops.h sys_defs.h timed_connect.h \
 	timed_wait.h trigger.h username.h valid_hostname.h vbuf.h \
-	vbuf_print.h vstream.h vstring.h vstring_vstream.h watchdog.h \
+	vbuf_print.h vstream.h vstring.h vstring_vstream.h watchdog.h load_lib.h \
 	nvtable.h host_port.h dict_sdbm.h sdbm.h
 TESTSRC	= fifo_open.c fifo_rdwr_bug.c fifo_rdonly_bug.c select_bug.c \
 	stream_test.c dup2_pass_on_exec.c
@@ -82,6 +82,8 @@
 CFLAGS	= $(DEBUG) $(OPT) $(DEFS)
 FILES	= Makefile $(SRCS) $(HDRS)
 INCL	=
+PCRESO  = dict_pcre.so
+MYSQLSO = dict_mysql.so
 LIB	= libutil.a
 TESTPROG= dict_open dup2_pass_on_exec events exec_command fifo_open \
 	fifo_rdonly_bug fifo_rdwr_bug fifo_trigger fsspace fullname \
@@ -94,8 +96,9 @@
 
 LIB_DIR	= ../../lib
 INC_DIR	= ../../include
+LIBS    = $(LIB_DIR)/$(LIB) $(LIB_DIR)/$(PCRESO) $(LIB_DIR)/$(MYSQLSO)
 
-.c.o:;	$(CC) $(CFLAGS) -c $*.c
+.c.o:;	$(CC) -fPIC $(CFLAGS) -c $*.c
 
 all: $(LIB)
 
@@ -104,15 +107,25 @@
 
 test:	$(TESTPROG)
 
+$(PCRESO): dict_pcre.o
+	gcc -shared -Wl,-soname,dict_pcre.so -o $@ $? -lpcre -L. -lutil
+
+$(MYSQLSO): dict_mysql.o
+	gcc -shared -Wl,-soname,dict_mysql.so -o $@ $? -lmysqlclient -L. -lutil
+
 $(LIB):	$(OBJS)
-	$(AR) $(ARFL) $(LIB) $?
-	$(RANLIB) $(LIB)
+	gcc -shared -Wl,-soname,libpostfix-util.so.1 -o $(LIB) $(OBJS) -ldl
 
 $(LIB_DIR)/$(LIB): $(LIB)
 	cp $(LIB) $(LIB_DIR)
-	$(RANLIB) $(LIB_DIR)/$(LIB)
 
-update: $(LIB_DIR)/$(LIB) $(HDRS)
+$(LIB_DIR)/$(PCRESO): $(PCRESO)
+	cp $(PCRESO) $(LIB_DIR)
+
+$(LIB_DIR)/$(MYSQLSO): $(MYSQLSO)
+	cp $(MYSQLSO) $(LIB_DIR)
+
+update: $(LIBS) $(HDRS)
 	-for i in $(HDRS); \
 	do \
 	  cmp -s $$i $(INC_DIR)/$$i 2>/dev/null || cp $$i $(INC_DIR); \
@@ -134,7 +147,8 @@
 	lint $(SRCS)
 
 clean:
-	rm -f *.o $(LIB) *core $(TESTPROG) junk $(MAKES) *.tmp
+	rm -f *.o $(LIB) $(PCRESO) $(MYSQLSO) *core $(TESTPROG) \
+		junk $(MAKES) *.tmp
 	rm -rf printfck
 
 tidy:	clean
--- postfix-1.1.3.orig/src/util/dict.h
+++ postfix-1.1.3/src/util/dict.h
@@ -74,6 +74,20 @@
   */
 extern ARGV *dict_mapnames(void);
 
+#ifndef NO_DYNAMIC_MAPS
+ /*
+  * Interface for dynamic map loading.
+  */
+typedef struct {
+    const char  *pattern;
+    const char  *soname;
+    const char  *openfunc;
+} DLINFO;
+
+extern void dict_open_dlinfo(const char *path);
+extern DLINFO *dict_open_dlfind(const char *type);
+#endif
+
  /*
   * High-level interface, with logical dictionary names.
   */
--- postfix-1.1.3.orig/src/util/dict_open.c
+++ postfix-1.1.3/src/util/dict_open.c
@@ -150,6 +150,9 @@
 #include <strings.h>
 #endif
 
+#include <sys/stat.h>
+#include <unistd.h>
+
 /* Utility library. */
 
 #include <argv.h>
@@ -173,6 +176,14 @@
 #include <split_at.h>
 #include <htable.h>
 
+#ifndef NO_DYNAMIC_MAPS
+#include <load_lib.h>
+#include <vstring.h>
+#include <vstream.h>
+#include <vstring_vstream.h>
+#include <mvect.h>
+#endif
+
  /*
   * lookup table for available map types.
   */
@@ -203,6 +214,7 @@
 #ifdef HAS_NETINFO
     DICT_TYPE_NETINFO, dict_ni_open,
 #endif
+#ifndef MAX_DYNAMIC_MAPS
 #ifdef HAS_LDAP
     DICT_TYPE_LDAP, dict_ldap_open,
 #endif
@@ -212,6 +224,7 @@
 #ifdef HAS_PCRE
     DICT_TYPE_PCRE, dict_pcre_open,
 #endif
+#endif /* MAX_DYNAMIC_MAPS */
 #ifdef HAS_POSIX_REGEXP
     DICT_TYPE_REGEXP, dict_regexp_open,
 #endif
@@ -264,8 +277,38 @@
 
     if (dict_open_hash == 0)
 	dict_open_init();
-    if ((dp = (DICT_OPEN_INFO *) htable_find(dict_open_hash, dict_type)) == 0)
-	msg_fatal("unsupported dictionary type: %s", dict_type);
+    if ((dp = (DICT_OPEN_INFO *) htable_find(dict_open_hash, dict_type)) == 0) {
+#ifndef NO_DYNAMIC_MAPS
+	struct stat st;
+	VSTRING *lib, *func;
+	LIB_FN fn[2];
+	DICT *(*open) (const char *, int, int);
+	DLINFO *dl=dict_open_dlfind(dict_type);
+	if (!dl)
+#endif
+	    msg_fatal("%s: unsupported dictionary type: %s", myname, dict_type);
+#ifndef NO_DYNAMIC_MAPS
+	lib=vstring_alloc(1);
+	vstring_sprintf(lib,dl->soname,dict_type);
+	if (stat(vstring_str(lib),&st) < 0) {
+	    msg_fatal("%s: unsupported dictionary type: %s (%s not found.  Is the postfix-%s package installed?)",
+		myname, dict_type, vstring_str(lib), dict_type);
+	}
+	func=vstring_alloc(1);
+	vstring_sprintf(func,dl->openfunc,dict_type);
+	fn[0].name = vstring_str(func);
+	fn[0].ptr  = (void**)&open;
+	fn[1].name = NULL;
+	load_library_symbols(vstring_str(lib), fn, NULL);
+	dict_open_register(dict_type, open);
+	dp = (DICT_OPEN_INFO *) htable_find(dict_open_hash, dict_type);
+	vstring_free(lib);
+	vstring_free(func);
+#endif
+    }
+    if (msg_verbose>1) {
+	msg_info("%s: calling %s open routine",myname,dict_type);
+    }
     if ((dict = dp->open(dict_name, open_flags, dict_flags)) == 0)
 	msg_fatal("opening %s:%s %m", dict_type, dict_name);
     if (msg_verbose)
@@ -311,6 +354,76 @@
     argv_terminate(mapnames);
     return mapnames;
 }
+
+#ifndef NO_DYNAMIC_MAPS
+static DLINFO  *dict_dlinfo;
+
+void dict_open_dlinfo(const char *path)
+{
+    char    *myname="dict_open_dlinfo";
+    VSTREAM *conf_fp=vstream_fopen(path,O_RDONLY,0);
+    VSTRING *buf = vstring_alloc(100);
+    char    *cp;
+    ARGV    *argv;
+    MVECT    vector;
+    int      nelm=0;
+    int      linenum=0;
+
+    dict_dlinfo=(DLINFO*)mvect_alloc(&vector,sizeof(DLINFO),3,NULL,NULL);
+
+    if (!conf_fp) {
+	msg_warn("%s: cannot open %s.  No dynamic maps will be allowed.",
+		myname, path);
+    } else {
+	while (vstring_get_nonl(buf,conf_fp) != VSTREAM_EOF) {
+	    cp = vstring_str(buf);
+	    linenum++;
+	    if (*cp == '#' || *cp == '\0')
+		continue;
+	    argv = argv_split(cp, " \t");
+	    if (argv->argc != 3) {
+		msg_fatal("%s: Expected \"pattern .so-name function\" at line %d",
+			  myname, linenum);
+	    }
+	    if (argv->argv[1][0] != '/') {
+		msg_fatal("%s: .so name must begin with a \"/\" at line %d",
+			  myname, linenum);
+	    }
+	    if (nelm >= vector.nelm) {
+		dict_dlinfo=(DLINFO*)mvect_realloc(&vector,vector.nelm+3);
+	    }
+	    dict_dlinfo[nelm].pattern  = mystrdup(argv->argv[0]);
+	    dict_dlinfo[nelm].soname   = mystrdup(argv->argv[1]);
+	    dict_dlinfo[nelm].openfunc = mystrdup(argv->argv[2]);
+	    nelm++;
+	    argv_free(argv);
+	}
+    }
+    if (nelm >= vector.nelm) {
+	dict_dlinfo=(DLINFO*)mvect_realloc(&vector,vector.nelm+1);
+    }
+    dict_dlinfo[nelm].pattern  = NULL;
+    dict_dlinfo[nelm].soname   = NULL;
+    dict_dlinfo[nelm].openfunc = NULL;
+    if (conf_fp)
+	vstream_fclose(conf_fp);
+    vstring_free(buf);
+}
+
+DLINFO *dict_open_dlfind(const char *type)
+{
+    DLINFO *dp;
+
+    if (!dict_dlinfo)
+	return NULL;
+
+    for (dp=dict_dlinfo; dp->pattern; dp++) {
+	if (strcmp(dp->pattern,type)==0 || strcmp(dp->pattern,"*")==0)
+	    return dp;
+    }
+    return NULL;
+}
+#endif /* !NO_DYNAMIC_MAPS */
 
 #ifdef TEST
 
--- postfix-1.1.3.orig/src/util/load_lib.c
+++ postfix-1.1.3/src/util/load_lib.c
@@ -0,0 +1,135 @@
+/*++
+/* NAME
+/*	load_lib 3
+/* SUMMARY
+/*	library loading wrappers
+/* SYNOPSIS
+/*	#include <load_lib.h>
+/*
+/*	extern int  load_library_symbols(const char *, LIB_FN *, LIB_FN *);
+/*	const char *libname;
+/*      LIB_FN     *libfuncs;
+/*      LIB_FN     *libdata;
+/*
+/* DESCRIPTION
+/*	This module loads functions from libraries, returnine pointers
+/*	to the named functions.
+/*
+/*	load_library_symbols() loads all of the desired functions, and
+/*	returns zero for success, or exits via msg_fatal().
+/*
+/* SEE ALSO
+/*	msg(3) diagnostics interface
+/* DIAGNOSTICS
+/*	Problems are reported via the msg(3) diagnostics routines:
+/*	library not found, symbols not found, other fatal errors.
+/* LICENSE
+/* .ad
+/* .fi
+/*	The Secure Mailer license must be distributed with this software.
+/* AUTHOR(S)
+/*	LaMont Jones
+/*	Hewlett-Packard Company
+/*	3404 Harmony Road
+/*	Fort Collins, CO 80528, USA
+/*
+/*	Wietse Venema
+/*	IBM T.J. Watson Research
+/*	P.O. Box 704
+/*	Yorktown Heights, NY 10598, USA
+/*--*/
+
+/* System libraries. */
+
+#include "sys_defs.h"
+#include <stdlib.h>
+#include <stddef.h>
+#include <string.h>
+#if defined(HAS_DLOPEN)
+#include <dlfcn.h>
+#elif defined(HAS_SHL_LOAD)
+#include <dl.h>
+#endif
+
+/* Application-specific. */
+
+#include "msg.h"
+#include "load_lib.h"
+
+extern int  load_library_symbols(const char * libname, LIB_FN * libfuncs, LIB_FN * libdata)
+{
+    char   *myname = "load_library_symbols";
+    LIB_FN *fn;
+
+#if defined(HAS_DLOPEN)
+    void   *handle;
+    char   *emsg;
+
+    handle=dlopen(libname,RTLD_NOW);
+    emsg=dlerror();
+    if (emsg) {
+	msg_fatal("%s: dlopen failure loading %s: %s", myname, libname, emsg);
+    }
+
+    if (libfuncs) {
+	for (fn=libfuncs; fn->name; fn++) {
+	    *(fn->ptr) = dlsym(handle,fn->name);
+	    emsg=dlerror();
+	    if (emsg) {
+		msg_fatal("%s: dlsym failure looking up %s in %s: %s", myname,
+			  fn->name, libname, emsg);
+	    }
+	    if (msg_verbose>1) {
+		msg_info("loaded %s = %lx",fn->name, *((long*)(fn->ptr)));
+	    }
+	}
+    }
+
+    if (libdata) {
+	for (fn=libdata; fn->name; fn++) {
+	    *(fn->ptr) = dlsym(handle,fn->name);
+	    emsg=dlerror();
+	    if (emsg) {
+		msg_fatal("%s: dlsym failure looking up %s in %s: %s", myname,
+			  fn->name, libname, emsg);
+	    }
+	    if (msg_verbose>1) {
+		msg_info("loaded %s = %lx",fn->name, *((long*)(fn->ptr)));
+	    }
+	}
+    }
+#elif defined(HAS_SHL_LOAD)
+    shl_t   handle;
+
+    handle = shl_load(libname,BIND_IMMEDIATE,0);
+
+    if (libfuncs) {
+	for (fn=libfuncs; fn->name; fn++) {
+	    if (shl_findsym(&handle,fn->name,TYPE_PROCEDURE,fn->ptr) != 0) {
+		msg_fatal("%s: shl_findsym failure looking up %s in %s: %m",
+			  myname, fn->name, libname);
+	    }
+	    if (msg_verbose>1) {
+		msg_info("loaded %s = %x",fn->name, *((long*)(fn->ptr)));
+	    }
+	}
+    }
+
+    if (libdata) {
+	for (fn=libdata; fn->name; fn++) {
+	    if (shl_findsym(&handle,fn->name,TYPE_DATA,fn->ptr) != 0) {
+		msg_fatal("%s: shl_findsym failure looking up %s in %s: %m",
+			  myname, fn->name, libname);
+	    }
+	    if (msg_verbose>1) {
+		msg_info("loaded %s = %x",fn->name, *((long*)(fn->ptr)));
+	    }
+	}
+    }
+
+#else
+    msg_fatal("%s: need dlopen or shl_load support for dynamic libraries",
+		myname);
+#endif
+    return 0;
+}
--- postfix-1.1.3.orig/src/util/load_lib.h
+++ postfix-1.1.3/src/util/load_lib.h
@@ -0,0 +1,41 @@
+#ifndef _LOAD_LIB_H_INCLUDED_
+#define _LOAD_LIB_H_INCLUDED_
+
+/*++
+/* NAME
+/*	load_lib 3h
+/* SUMMARY
+/*	library loading wrappers
+/* SYNOPSIS
+/*	#include "load_lib.h"
+/* DESCRIPTION
+/* .nf
+
+ /*
+  * External interface.
+  */
+/* NULL name terminates list */
+typedef struct LIB_FN {
+    const char *name;
+    void       **ptr;
+} LIB_FN;
+
+extern int  load_library_symbols(const char *, LIB_FN *, LIB_FN *);
+
+/* LICENSE
+/* .ad
+/* .fi
+/*	The Secure Mailer license must be distributed with this software.
+/* AUTHOR(S)
+/*	LaMont Jones
+/*	Hewlett-Packard Company
+/*	3404 Harmony Road
+/*	Fort Collins, CO 80528, USA
+/*
+/*	Wietse Venema
+/*	IBM T.J. Watson Research
+/*	P.O. Box 704
+/*	Yorktown Heights, NY 10598, USA
+/*--*/
+
+#endif
--- postfix-1.1.3.orig/src/util/sys_defs.h
+++ postfix-1.1.3/src/util/sys_defs.h
@@ -498,6 +498,7 @@
 #define UNIX_DOMAIN_CONNECT_BLOCKS_FOR_ACCEPT
 #define PREPEND_PLUS_TO_OPTSTRING
 #define HAS_POSIX_REGEXP
+#define HAS_DLOPEN
 #define NATIVE_SENDMAIL_PATH "/usr/sbin/sendmail"
 #define NATIVE_MAILQ_PATH "/usr/bin/mailq"
 #define NATIVE_NEWALIAS_PATH "/usr/bin/newaliases"
@@ -526,6 +527,7 @@
 #define UNIX_DOMAIN_CONNECT_BLOCKS_FOR_ACCEPT	/* unverified */
 #define PREPEND_PLUS_TO_OPTSTRING
 #define HAS_POSIX_REGEXP
+#define HAS_DLOPEN
 #define NATIVE_SENDMAIL_PATH "/usr/sbin/sendmail"
 #define NATIVE_MAILQ_PATH "/usr/bin/mailq"
 #define NATIVE_NEWALIAS_PATH "/usr/bin/newaliases"
@@ -564,6 +566,7 @@
 #define USE_STATFS
 #define STATFS_IN_SYS_VFS_H
 #define HAS_POSIX_REGEXP
+#define HAS_SHL_LOAD
 #define NATIVE_SENDMAIL_PATH "/usr/sbin/sendmail"
 #define NATIVE_MAILQ_PATH "/usr/bin/mailq"
 #define NATIVE_NEWALIAS_PATH "/usr/bin/newaliases"
@@ -599,6 +602,7 @@
 #define USE_STATFS
 #define STATFS_IN_SYS_VFS_H
 #define HAS_POSIX_REGEXP
+#define HAS_SHL_LOAD
 #define NATIVE_SENDMAIL_PATH "/usr/sbin/sendmail"
 #define NATIVE_MAILQ_PATH "/usr/bin/mailq"
 #define NATIVE_NEWALIAS_PATH "/usr/bin/newaliases"