blob: 3d40b00dd57c3cc16fdc3fe2c14a6e0799effd41 [file] [log] [blame] [edit]
--- a/Makefile
+++ b/Makefile
@@ -150,15 +150,15 @@ netbsd:
linux:
@make REAL_DAEMON_DIR=$(REAL_DAEMON_DIR) STYLE=$(STYLE) \
- LIBS=-lnsl RANLIB=ranlib ARFLAGS=rv AUX_OBJ= \
+ LIBS=-lnsl RANLIB=ranlib ARFLAGS=rv AUX_OBJ=weak_symbols.o \
NETGROUP="-DNETGROUP" TLI= VSYSLOG= BUGS= \
- EXTRA_CFLAGS="-DSYS_ERRLIST_DEFINED -DHAVE_STRERROR -DINET6=1 -Dss_family=__ss_family -Dss_len=__ss_len" all
+ EXTRA_CFLAGS="-DSYS_ERRLIST_DEFINED -DHAVE_STRERROR -DHAVE_WEAKSYMS -D_REENTRANT -DINET6=1 -Dss_family=__ss_family -Dss_len=__ss_len" all
gnu:
@make REAL_DAEMON_DIR=$(REAL_DAEMON_DIR) STYLE=$(STYLE) \
- LIBS=-lnsl RANLIB=ranlib ARFLAGS=rv AUX_OBJ= \
+ LIBS=-lnsl RANLIB=ranlib ARFLAGS=rv AUX_OBJ=weak_symbols.o \
NETGROUP=-DNETGROUP TLI= VSYSLOG= BUGS= \
- EXTRA_CFLAGS="-DSYS_ERRLIST_DEFINED -DHAVE_STRERROR" all
+ EXTRA_CFLAGS="-DSYS_ERRLIST_DEFINED -DHAVE_STRERROR -DHAVE_WEAKSYMS -D_REENTRANT" all
# This is good for many SYSV+BSD hybrids with NIS, probably also for HP-UX 7.x.
hpux hpux8 hpux9 hpux10:
@@ -713,7 +713,22 @@ KIT = README miscd.c tcpd.c fromhost.c h
LIB = libwrap.a
-all other: config-check tcpd tcpdmatch try-from safe_finger tcpdchk
+shared/%.o: %.c
+ $(CC) $(CFLAGS) $(SHCFLAGS) -c $< -o $@
+
+SOMAJOR = 0
+SOMINOR = 7.6
+
+SHLIB = shared/libwrap.so.$(SOMAJOR).$(SOMINOR)
+SHLIBSOMAJ = shared/libwrap.so.$(SOMAJOR)
+SHLIBSO = shared/libwrap.so
+SHLIBFLAGS = -Lshared -lwrap
+
+SHLINKFLAGS = -fpic -shared -Wl,-soname,libwrap.so.$(SOMAJOR) -Wl,--version-script=libwrap.lds $(LIBS)
+SHCFLAGS = -fpic -shared -D_REENTRANT
+SHLIB_OBJ= $(addprefix shared/, $(LIB_OBJ));
+
+all other: config-check tcpd tcpdmatch try-from safe_finger tcpdchk $(LIB)
# Invalidate all object files when the compiler options (CFLAGS) have changed.
@@ -731,27 +746,33 @@ $(LIB): $(LIB_OBJ)
$(AR) $(ARFLAGS) $(LIB) $(LIB_OBJ)
-$(RANLIB) $(LIB)
-tcpd: tcpd.o $(LIB)
- $(CC) $(CFLAGS) -o $@ tcpd.o $(LIB) $(LIBS)
+$(SHLIB): libwrap.lds $(SHLIB_OBJ)
+ rm -f $(SHLIB)
+ $(CC) -o $(SHLIB) $(SHLINKFLAGS) $(SHLIB_OBJ)
+ ln -sf $(notdir $(SHLIB)) $(SHLIBSOMAJ)
+ ln -sf $(notdir $(SHLIBSOMAJ)) $(SHLIBSO)
+
+tcpd: tcpd.o $(SHLIB)
+ $(CC) $(CFLAGS) -o $@ tcpd.o $(SHLIBFLAGS)
miscd: miscd.o $(LIB)
$(CC) $(CFLAGS) -o $@ miscd.o $(LIB) $(LIBS)
-safe_finger: safe_finger.o $(LIB)
- $(CC) $(CFLAGS) -o $@ safe_finger.o $(LIB) $(LIBS)
+safe_finger: safe_finger.o
+ $(CC) $(CFLAGS) -o $@ safe_finger.o
TCPDMATCH_OBJ = tcpdmatch.o fakelog.o inetcf.o scaffold.o
-tcpdmatch: $(TCPDMATCH_OBJ) $(LIB)
- $(CC) $(CFLAGS) -o $@ $(TCPDMATCH_OBJ) $(LIB) $(LIBS)
+tcpdmatch: $(TCPDMATCH_OBJ) $(SHLIB)
+ $(CC) $(CFLAGS) -o $@ $(TCPDMATCH_OBJ) $(SHLIBFLAGS)
-try-from: try-from.o fakelog.o $(LIB)
- $(CC) $(CFLAGS) -o $@ try-from.o fakelog.o $(LIB) $(LIBS)
+try-from: try-from.o fakelog.o $(SHLIB)
+ $(CC) $(CFLAGS) -o $@ try-from.o fakelog.o $(SHLIBFLAGS)
TCPDCHK_OBJ = tcpdchk.o fakelog.o inetcf.o scaffold.o
-tcpdchk: $(TCPDCHK_OBJ) $(LIB)
- $(CC) $(CFLAGS) -o $@ $(TCPDCHK_OBJ) $(LIB) $(LIBS)
+tcpdchk: $(TCPDCHK_OBJ) $(SHLIB)
+ $(CC) $(CFLAGS) -o $@ $(TCPDCHK_OBJ) $(SHLIBFLAGS)
shar: $(KIT)
@shar $(KIT)
@@ -767,7 +788,9 @@ archive:
clean:
rm -f tcpd miscd safe_finger tcpdmatch tcpdchk try-from *.[oa] core \
+ libwrap*.so* \
cflags
+ rm -rf shared/
tidy: clean
chmod -R a+r .
@@ -913,5 +936,6 @@ update.o: cflags
update.o: mystdarg.h
update.o: tcpd.h
vfprintf.o: cflags
+weak_symbols.o: tcpd.h
workarounds.o: cflags
workarounds.o: tcpd.h
--- a/tcpd.h
+++ b/tcpd.h
@@ -4,6 +4,15 @@
* Author: Wietse Venema, Eindhoven University of Technology, The Netherlands.
*/
+#ifndef _TCPWRAPPERS_TCPD_H
+#define _TCPWRAPPERS_TCPD_H
+
+/* Need definitions of struct sockaddr_in and FILE. */
+#include <netinet/in.h>
+#include <stdio.h>
+
+__BEGIN_DECLS
+
/* Structure to describe one communications endpoint. */
#define STRING_LENGTH 128 /* hosts, users, processes */
@@ -29,10 +38,10 @@ struct request_info {
char pid[10]; /* access via eval_pid(request) */
struct host_info client[1]; /* client endpoint info */
struct host_info server[1]; /* server endpoint info */
- void (*sink) (); /* datagram sink function or 0 */
- void (*hostname) (); /* address to printable hostname */
- void (*hostaddr) (); /* address to printable address */
- void (*cleanup) (); /* cleanup function or 0 */
+ void (*sink) (int); /* datagram sink function or 0 */
+ void (*hostname) (struct host_info *); /* address to printable hostname */
+ void (*hostaddr) (struct host_info *); /* address to printable address */
+ void (*cleanup) (struct request_info *); /* cleanup function or 0 */
struct netconfig *config; /* netdir handle */
};
@@ -70,20 +79,27 @@ extern void fromhost(); /* get/validat
#define fromhost sock_host /* no TLI support needed */
#endif
-extern int hosts_access(); /* access control */
-extern void shell_cmd(); /* execute shell command */
-extern char *percent_x(); /* do %<char> expansion */
-extern void rfc931(); /* client name from RFC 931 daemon */
-extern void clean_exit(); /* clean up and exit */
-extern void refuse(); /* clean up and exit */
-extern char *xgets(); /* fgets() on steroids */
-extern char *split_at(); /* strchr() and split */
-extern unsigned long dot_quad_addr(); /* restricted inet_addr() */
+extern int hosts_access(struct request_info *request); /* access control */
+extern void shell_cmd(char *); /* execute shell command */
+extern char *percent_x(char *, int, char *, struct request_info *);
+ /* do %<char> expansion */
+extern void rfc931(struct sockaddr *, struct sockaddr *, char *);
+ /* client name from RFC 931 daemon */
+extern void clean_exit(struct request_info *); /* clean up and exit */
+extern void refuse(struct request_info *); /* clean up and exit */
+extern char *xgets(char *, int, FILE *); /* fgets() on steroids */
+extern char *split_at(char *, int); /* strchr() and split */
+extern unsigned long dot_quad_addr(char *); /* restricted inet_addr() */
/* Global variables. */
+#ifdef HAVE_WEAKSYMS
+extern int allow_severity __attribute__ ((weak)); /* for connection logging */
+extern int deny_severity __attribute__ ((weak)); /* for connection logging */
+#else
extern int allow_severity; /* for connection logging */
extern int deny_severity; /* for connection logging */
+#endif
extern char *hosts_allow_table; /* for verification mode redirection */
extern char *hosts_deny_table; /* for verification mode redirection */
extern int hosts_access_verbose; /* for verbose matching mode */
@@ -98,6 +114,8 @@ extern int resident; /* > 0 if residen
#ifdef __STDC__
extern struct request_info *request_init(struct request_info *,...);
extern struct request_info *request_set(struct request_info *,...);
+extern int hosts_ctl(char *daemon, char *client_name, char *client_addr,
+ char *client_user);
#else
extern struct request_info *request_init(); /* initialize request */
extern struct request_info *request_set(); /* update request structure */
@@ -121,20 +139,23 @@ extern struct request_info *request_set(
* host_info structures serve as caches for the lookup results.
*/
-extern char *eval_user(); /* client user */
-extern char *eval_hostname(); /* printable hostname */
-extern char *eval_hostaddr(); /* printable host address */
-extern char *eval_hostinfo(); /* host name or address */
-extern char *eval_client(); /* whatever is available */
-extern char *eval_server(); /* whatever is available */
+extern char *eval_user(struct request_info *); /* client user */
+extern char *eval_hostname(struct host_info *); /* printable hostname */
+extern char *eval_hostaddr(struct host_info *); /* printable host address */
+extern char *eval_hostinfo(struct host_info *); /* host name or address */
+extern char *eval_client(struct request_info *);/* whatever is available */
+extern char *eval_server(struct request_info *);/* whatever is available */
#define eval_daemon(r) ((r)->daemon) /* daemon process name */
#define eval_pid(r) ((r)->pid) /* process id */
/* Socket-specific methods, including DNS hostname lookups. */
-extern void sock_host(); /* look up endpoint addresses */
-extern void sock_hostname(); /* translate address to hostname */
-extern void sock_hostaddr(); /* address to printable address */
+/* look up endpoint addresses */
+extern void sock_host(struct request_info *);
+/* translate address to hostname */
+extern void sock_hostname(struct host_info *);
+/* address to printable address */
+extern void sock_hostaddr(struct host_info *);
#define sock_methods(r) \
{ (r)->hostname = sock_hostname; (r)->hostaddr = sock_hostaddr; }
@@ -182,7 +203,7 @@ extern struct tcpd_context tcpd_context;
* behavior.
*/
-extern void process_options(); /* execute options */
+extern void process_options(char *, struct request_info *);/* execute options */
extern int dry_run; /* verification flag */
/* Bug workarounds. */
@@ -221,3 +242,7 @@ extern char *fix_strtok();
#define strtok my_strtok
extern char *my_strtok();
#endif
+
+__END_DECLS
+
+#endif
--- /dev/null
+++ b/weak_symbols.c
@@ -0,0 +1,12 @@
+ /*
+ * @(#) weak_symbols.h 1.5 99/12/29 23:50
+ *
+ * Author: Anthony Towns <ajt@debian.org>
+ */
+
+#ifdef HAVE_WEAKSYMS
+#include "tcpd.h"
+#include <syslog.h>
+int deny_severity = LOG_WARNING;
+int allow_severity = SEVERITY;
+#endif
--- /dev/null
+++ b/libwrap.lds
@@ -0,0 +1,4 @@
+{
+ local:
+ aclexec_matched;
+};