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@@ -0,0 +1,936 @@
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+--- a/hosts_access.c
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++++ b/hosts_access.c
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+@@ -240,6 +240,26 @@ struct request_info *request;
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+ }
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+ }
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+
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++/* hostfile_match - look up host patterns from file */
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++
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++static int hostfile_match(path, host)
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++char *path;
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++struct hosts_info *host;
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++{
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++ char tok[BUFSIZ];
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++ int match = NO;
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++ FILE *fp;
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++
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++ if ((fp = fopen(path, "r")) != 0) {
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++ while (fscanf(fp, "%s", tok) == 1 && !(match = host_match(tok, host)))
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++ /* void */ ;
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++ fclose(fp);
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++ } else if (errno != ENOENT) {
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++ tcpd_warn("open %s: %m", path);
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++ }
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++ return (match);
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++}
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++
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+ /* host_match - match host name and/or address against pattern */
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+
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+ static int host_match(tok, host)
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+@@ -267,6 +287,8 @@ struct host_info *host;
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+ tcpd_warn("netgroup support is disabled"); /* not tcpd_jump() */
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+ return (NO);
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+ #endif
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++ } else if (tok[0] == '/') { /* /file hack */
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++ return (hostfile_match(tok, host));
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+ } else if (STR_EQ(tok, "KNOWN")) { /* check address and name */
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+ char *name = eval_hostname(host);
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+ return (STR_NE(eval_hostaddr(host), unknown) && HOSTNAME_KNOWN(name));
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+--- a/tcpd.h
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++++ b/tcpd.h
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+@@ -4,6 +4,25 @@
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+ * Author: Wietse Venema, Eindhoven University of Technology, The Netherlands.
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+ */
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+
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++#ifndef _TCPWRAPPERS_TCPD_H
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++#define _TCPWRAPPERS_TCPD_H
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++
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++/* someone else may have defined this */
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++#undef __P
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++
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++/* use prototypes if we have an ANSI C compiler or are using C++ */
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++#if defined(__STDC__) || defined(__cplusplus)
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++#define __P(args) args
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++#else
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++#define __P(args) ()
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++#endif
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++
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++/* Need definitions of struct sockaddr_in and FILE. */
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++#include <netinet/in.h>
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++#include <stdio.h>
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++
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++__BEGIN_DECLS
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++
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+ /* Structure to describe one communications endpoint. */
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+
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+ #define STRING_LENGTH 128 /* hosts, users, processes */
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+@@ -25,10 +44,10 @@ struct request_info {
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+ char pid[10]; /* access via eval_pid(request) */
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+ struct host_info client[1]; /* client endpoint info */
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+ struct host_info server[1]; /* server endpoint info */
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+- void (*sink) (); /* datagram sink function or 0 */
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+- void (*hostname) (); /* address to printable hostname */
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+- void (*hostaddr) (); /* address to printable address */
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+- void (*cleanup) (); /* cleanup function or 0 */
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++ void (*sink) __P((int)); /* datagram sink function or 0 */
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++ void (*hostname) __P((struct host_info *)); /* address to printable hostname */
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++ void (*hostaddr) __P((struct host_info *)); /* address to printable address */
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++ void (*cleanup) __P((struct request_info *)); /* cleanup function or 0 */
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+ struct netconfig *config; /* netdir handle */
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+ };
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+
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+@@ -61,25 +80,30 @@ extern char paranoid[];
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+ /* Global functions. */
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+
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+ #if defined(TLI) || defined(PTX) || defined(TLI_SEQUENT)
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+-extern void fromhost(); /* get/validate client host info */
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++extern void fromhost __P((struct request_info *)); /* get/validate client host info */
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+ #else
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+ #define fromhost sock_host /* no TLI support needed */
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+ #endif
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+
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+-extern int hosts_access(); /* access control */
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+-extern void shell_cmd(); /* execute shell command */
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+-extern char *percent_x(); /* do %<char> expansion */
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+-extern void rfc931(); /* client name from RFC 931 daemon */
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+-extern void clean_exit(); /* clean up and exit */
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+-extern void refuse(); /* clean up and exit */
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+-extern char *xgets(); /* fgets() on steroids */
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+-extern char *split_at(); /* strchr() and split */
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+-extern unsigned long dot_quad_addr(); /* restricted inet_addr() */
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++extern void shell_cmd __P((char *)); /* execute shell command */
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++extern char *percent_x __P((char *, int, char *, struct request_info *)); /* do %<char> expansion */
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++extern void rfc931 __P((struct sockaddr_in *, struct sockaddr_in *, char *)); /* client name from RFC 931 daemon */
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++extern void clean_exit __P((struct request_info *)); /* clean up and exit */
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++extern void refuse __P((struct request_info *)); /* clean up and exit */
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++extern char *xgets __P((char *, int, FILE *)); /* fgets() on steroids */
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++extern char *split_at __P((char *, int)); /* strchr() and split */
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++extern unsigned long dot_quad_addr __P((char *)); /* restricted inet_addr() */
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+
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+ /* Global variables. */
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+
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++#ifdef HAVE_WEAKSYMS
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++extern int allow_severity __attribute__ ((weak)); /* for connection logging */
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++extern int deny_severity __attribute__ ((weak)); /* for connection logging */
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++#else
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+ extern int allow_severity; /* for connection logging */
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+ extern int deny_severity; /* for connection logging */
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++#endif
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++
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+ extern char *hosts_allow_table; /* for verification mode redirection */
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+ extern char *hosts_deny_table; /* for verification mode redirection */
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+ extern int hosts_access_verbose; /* for verbose matching mode */
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+@@ -92,9 +116,14 @@ extern int resident; /* > 0 if residen
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+ */
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+
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+ #ifdef __STDC__
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++extern int hosts_access(struct request_info *request);
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++extern int hosts_ctl(char *daemon, char *client_name, char *client_addr,
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++ char *client_user);
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+ extern struct request_info *request_init(struct request_info *,...);
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+ extern struct request_info *request_set(struct request_info *,...);
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+ #else
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++extern int hosts_access();
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++extern int hosts_ctl();
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+ extern struct request_info *request_init(); /* initialize request */
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+ extern struct request_info *request_set(); /* update request structure */
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+ #endif
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+@@ -117,27 +146,31 @@ extern struct request_info *request_set(
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+ * host_info structures serve as caches for the lookup results.
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+ */
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+
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+-extern char *eval_user(); /* client user */
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+-extern char *eval_hostname(); /* printable hostname */
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+-extern char *eval_hostaddr(); /* printable host address */
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+-extern char *eval_hostinfo(); /* host name or address */
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+-extern char *eval_client(); /* whatever is available */
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+-extern char *eval_server(); /* whatever is available */
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++extern char *eval_user __P((struct request_info *)); /* client user */
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++extern char *eval_hostname __P((struct host_info *)); /* printable hostname */
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++extern char *eval_hostaddr __P((struct host_info *)); /* printable host address */
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++extern char *eval_hostinfo __P((struct host_info *)); /* host name or address */
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++extern char *eval_client __P((struct request_info *)); /* whatever is available */
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++extern char *eval_server __P((struct request_info *)); /* whatever is available */
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154
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+ #define eval_daemon(r) ((r)->daemon) /* daemon process name */
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+ #define eval_pid(r) ((r)->pid) /* process id */
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+
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157
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+ /* Socket-specific methods, including DNS hostname lookups. */
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+
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159
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+-extern void sock_host(); /* look up endpoint addresses */
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+-extern void sock_hostname(); /* translate address to hostname */
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161
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+-extern void sock_hostaddr(); /* address to printable address */
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162
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++/* look up endpoint addresses */
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163
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++extern void sock_host __P((struct request_info *));
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164
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++/* translate address to hostname */
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165
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++extern void sock_hostname __P((struct host_info *));
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166
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++/* address to printable address */
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167
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++extern void sock_hostaddr __P((struct host_info *));
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168
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++
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169
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+ #define sock_methods(r) \
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+ { (r)->hostname = sock_hostname; (r)->hostaddr = sock_hostaddr; }
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+
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172
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+ /* The System V Transport-Level Interface (TLI) interface. */
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+
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174
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+ #if defined(TLI) || defined(PTX) || defined(TLI_SEQUENT)
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175
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+-extern void tli_host(); /* look up endpoint addresses etc. */
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++extern void tli_host __P((struct request_info *)); /* look up endpoint addresses etc. */
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+ #endif
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+
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+ /*
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+@@ -178,7 +211,7 @@ extern struct tcpd_context tcpd_context;
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+ * behavior.
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+ */
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183
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+
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184
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+-extern void process_options(); /* execute options */
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185
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++extern void process_options __P((char *, struct request_info *)); /* execute options */
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186
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+ extern int dry_run; /* verification flag */
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+
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188
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+ /* Bug workarounds. */
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189
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+@@ -217,3 +250,7 @@ extern char *fix_strtok();
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190
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+ #define strtok my_strtok
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191
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+ extern char *my_strtok();
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192
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+ #endif
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193
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++
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194
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++__END_DECLS
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195
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++
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196
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++#endif /* tcpd.h */
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197
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+--- a/Makefile
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198
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++++ b/Makefile
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199
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+@@ -1,5 +1,10 @@
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200
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++GLIBC=$(shell grep -s -c __GLIBC__ /usr/include/features.h)
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201
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++
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202
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+ # @(#) Makefile 1.23 97/03/21 19:27:20
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203
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+
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204
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++# unset the HOSTNAME environment variable
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205
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++HOSTNAME =
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206
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++
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207
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+ what:
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208
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+ @echo
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209
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+ @echo "Usage: edit the REAL_DAEMON_DIR definition in the Makefile then:"
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210
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+@@ -19,7 +24,7 @@ what:
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211
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+ @echo " generic (most bsd-ish systems with sys5 compatibility)"
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212
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+ @echo " 386bsd aix alpha apollo bsdos convex-ultranet dell-gcc dgux dgux543"
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213
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+ @echo " dynix epix esix freebsd hpux irix4 irix5 irix6 isc iunix"
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214
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+- @echo " linux machten mips(untested) ncrsvr4 netbsd next osf power_unix_211"
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++ @echo " linux gnu machten mips(untested) ncrsvr4 netbsd next osf power_unix_211"
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216
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+ @echo " ptx-2.x ptx-generic pyramid sco sco-nis sco-od2 sco-os5 sinix sunos4"
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+ @echo " sunos40 sunos5 sysv4 tandem ultrix unicos7 unicos8 unixware1 unixware2"
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+ @echo " uts215 uxp"
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219
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+@@ -43,8 +48,8 @@ what:
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+ # Ultrix 4.x SunOS 4.x ConvexOS 10.x Dynix/ptx
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+ #REAL_DAEMON_DIR=/usr/etc
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+ #
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223
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+-# SysV.4 Solaris 2.x OSF AIX
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224
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+-#REAL_DAEMON_DIR=/usr/sbin
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225
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++# SysV.4 Solaris 2.x OSF AIX Linux
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226
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++REAL_DAEMON_DIR=/usr/sbin
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227
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+ #
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228
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+ # BSD 4.4
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229
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+ #REAL_DAEMON_DIR=/usr/libexec
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230
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+@@ -141,10 +146,21 @@ freebsd:
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231
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+ LIBS= RANLIB=ranlib ARFLAGS=rv AUX_OBJ= NETGROUP= TLI= \
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232
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+ EXTRA_CFLAGS=-DSYS_ERRLIST_DEFINED VSYSLOG= all
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233
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+
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234
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++ifneq ($(GLIBC),0)
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235
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++MYLIB=-lnsl
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236
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++endif
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237
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++
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238
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+ linux:
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239
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+ @make REAL_DAEMON_DIR=$(REAL_DAEMON_DIR) STYLE=$(STYLE) \
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240
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+- LIBS= RANLIB=ranlib ARFLAGS=rv AUX_OBJ=setenv.o \
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241
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+- NETGROUP= TLI= EXTRA_CFLAGS="-DBROKEN_SO_LINGER" all
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242
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++ LIBS=$(MYLIB) RANLIB=ranlib ARFLAGS=rv AUX_OBJ=weak_symbols.o \
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243
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++ NETGROUP=-DNETGROUP TLI= VSYSLOG= BUGS= all \
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244
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++ EXTRA_CFLAGS="-DSYS_ERRLIST_DEFINED -DHAVE_WEAKSYMS -D_REENTRANT"
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245
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++
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246
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++gnu:
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247
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++ @make REAL_DAEMON_DIR=$(REAL_DAEMON_DIR) STYLE=$(STYLE) \
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248
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++ LIBS=$(MYLIB) RANLIB=ranlib ARFLAGS=rv AUX_OBJ=weak_symbols.o \
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249
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++ NETGROUP=-DNETGROUP TLI= VSYSLOG= BUGS= all \
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250
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++ EXTRA_CFLAGS="-DHAVE_STRERROR -DHAVE_WEAKSYMS -D_REENTRANT"
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251
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+
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252
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+ # This is good for many SYSV+BSD hybrids with NIS, probably also for HP-UX 7.x.
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253
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+ hpux hpux8 hpux9 hpux10:
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254
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+@@ -391,7 +407,7 @@ AR = ar
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255
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+ # the ones provided with this source distribution. The environ.c module
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256
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+ # implements setenv(), getenv(), and putenv().
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257
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+
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258
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+-AUX_OBJ= setenv.o
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259
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++#AUX_OBJ= setenv.o
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260
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+ #AUX_OBJ= environ.o
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261
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+ #AUX_OBJ= environ.o strcasecmp.o
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262
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+
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263
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+@@ -454,7 +470,8 @@ AUX_OBJ= setenv.o
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264
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+ # host name aliases. Compile with -DSOLARIS_24_GETHOSTBYNAME_BUG to work
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265
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+ # around this. The workaround does no harm on other Solaris versions.
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266
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+
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267
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+-BUGS = -DGETPEERNAME_BUG -DBROKEN_FGETS -DLIBC_CALLS_STRTOK
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268
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++BUGS =
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269
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++#BUGS = -DGETPEERNAME_BUG -DBROKEN_FGETS -DLIBC_CALLS_STRTOK
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270
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+ #BUGS = -DGETPEERNAME_BUG -DBROKEN_FGETS -DINET_ADDR_BUG
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271
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+ #BUGS = -DGETPEERNAME_BUG -DBROKEN_FGETS -DSOLARIS_24_GETHOSTBYNAME_BUG
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272
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+
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273
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+@@ -464,7 +481,7 @@ BUGS = -DGETPEERNAME_BUG -DBROKEN_FGETS
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274
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+ # If your system supports NIS or YP-style netgroups, enable the following
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275
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+ # macro definition. Netgroups are used only for host access control.
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276
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+ #
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277
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+-#NETGROUP= -DNETGROUP
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278
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++NETGROUP= -DNETGROUP
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+
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+ ###############################################################
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+ # System dependencies: whether or not your system has vsyslog()
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+@@ -491,7 +508,7 @@ VSYSLOG = -Dvsyslog=myvsyslog
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|
+ # Uncomment the next definition to turn on the language extensions
|
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|
+ # (examples: allow, deny, banners, twist and spawn).
|
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|
+ #
|
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|
+-#STYLE = -DPROCESS_OPTIONS # Enable language extensions.
|
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++STYLE = -DPROCESS_OPTIONS # Enable language extensions.
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+
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+ ################################################################
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+ # Optional: Changing the default disposition of logfile records
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+@@ -514,7 +531,7 @@ VSYSLOG = -Dvsyslog=myvsyslog
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+ #
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+ # The LOG_XXX names below are taken from the /usr/include/syslog.h file.
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+
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|
+-FACILITY= LOG_MAIL # LOG_MAIL is what most sendmail daemons use
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|
++FACILITY= LOG_DAEMON # LOG_MAIL is what most sendmail daemons use
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+
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+ # The syslog priority at which successful connections are logged.
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+
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+@@ -610,7 +627,7 @@ TABLES = -DHOSTS_DENY=\"/etc/hosts.deny\
|
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|
+ # Paranoid mode implies hostname lookup. In order to disable hostname
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+ # lookups altogether, see the next section.
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+
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|
+-PARANOID= -DPARANOID
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|
++#PARANOID= -DPARANOID
|
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+
|
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+ ########################################
|
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308
|
+ # Optional: turning off hostname lookups
|
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+@@ -623,7 +640,7 @@ PARANOID= -DPARANOID
|
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310
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+ # In order to perform selective hostname lookups, disable paranoid
|
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|
+ # mode (see previous section) and comment out the following definition.
|
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|
+
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|
+-HOSTNAME= -DALWAYS_HOSTNAME
|
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|
++#HOSTNAME= -DALWAYS_HOSTNAME
|
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+
|
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+ #############################################
|
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|
+ # Optional: Turning on host ADDRESS checking
|
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|
+@@ -649,28 +666,46 @@ HOSTNAME= -DALWAYS_HOSTNAME
|
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|
+ # source-routed traffic in the kernel. Examples: 4.4BSD derivatives,
|
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|
+ # Solaris 2.x, and Linux. See your system documentation for details.
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|
+ #
|
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|
+-# KILL_OPT= -DKILL_IP_OPTIONS
|
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|
++KILL_OPT= -DKILL_IP_OPTIONS
|
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|
+
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|
+ ## End configuration options
|
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|
+ ############################
|
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+
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|
+ # Protection against weird shells or weird make programs.
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+
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++CC = gcc
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|
+ SHELL = /bin/sh
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|
+-.c.o:; $(CC) $(CFLAGS) -c $*.c
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|
++.c.o:; $(CC) $(CFLAGS) -o $*.o -c $*.c
|
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|
++
|
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|
++SOMAJOR = 0
|
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|
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|
++SOMINOR = 7.6
|
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|
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|
++
|
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|
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|
++LIB = libwrap.a
|
|
|
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|
++SHLIB = shared/libwrap.so.$(SOMAJOR).$(SOMINOR)
|
|
|
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|
++SHLIBSOMAJ= shared/libwrap.so.$(SOMAJOR)
|
|
|
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|
++SHLIBSO = shared/libwrap.so
|
|
|
342
|
++SHLIBFLAGS = -Lshared -lwrap
|
|
|
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|
+
|
|
|
344
|
+-CFLAGS = -O -DFACILITY=$(FACILITY) $(ACCESS) $(PARANOID) $(NETGROUP) \
|
|
|
345
|
++shared/%.o: %.c
|
|
|
346
|
++ $(CC) $(CFLAGS) $(SHCFLAGS) -c $< -o $@
|
|
|
347
|
++
|
|
|
348
|
++CFLAGS = -O2 -g -DFACILITY=$(FACILITY) $(ACCESS) $(PARANOID) $(NETGROUP) \
|
|
|
349
|
+ $(BUGS) $(SYSTYPE) $(AUTH) $(UMASK) \
|
|
|
350
|
+ -DREAL_DAEMON_DIR=\"$(REAL_DAEMON_DIR)\" $(STYLE) $(KILL_OPT) \
|
|
|
351
|
+ -DSEVERITY=$(SEVERITY) -DRFC931_TIMEOUT=$(RFC931_TIMEOUT) \
|
|
|
352
|
+ $(UCHAR) $(TABLES) $(STRINGS) $(TLI) $(EXTRA_CFLAGS) $(DOT) \
|
|
|
353
|
+ $(VSYSLOG) $(HOSTNAME)
|
|
|
354
|
+
|
|
|
355
|
++SHLINKFLAGS = -shared -Xlinker -soname -Xlinker libwrap.so.$(SOMAJOR) -lc $(LIBS)
|
|
|
356
|
++SHCFLAGS = -fPIC -shared -D_REENTRANT
|
|
|
357
|
++
|
|
|
358
|
+ LIB_OBJ= hosts_access.o options.o shell_cmd.o rfc931.o eval.o \
|
|
|
359
|
+ hosts_ctl.o refuse.o percent_x.o clean_exit.o $(AUX_OBJ) \
|
|
|
360
|
+ $(FROM_OBJ) fix_options.o socket.o tli.o workarounds.o \
|
|
|
361
|
+ update.o misc.o diag.o percent_m.o myvsyslog.o
|
|
|
362
|
+
|
|
|
363
|
++SHLIB_OBJ= $(addprefix shared/, $(LIB_OBJ));
|
|
|
364
|
++
|
|
|
365
|
+ FROM_OBJ= fromhost.o
|
|
|
366
|
+
|
|
|
367
|
+ KIT = README miscd.c tcpd.c fromhost.c hosts_access.c shell_cmd.c \
|
|
|
368
|
+@@ -684,46 +719,78 @@ KIT = README miscd.c tcpd.c fromhost.c h
|
|
|
369
|
+ refuse.c tcpdchk.8 setenv.c inetcf.c inetcf.h scaffold.c \
|
|
|
370
|
+ scaffold.h tcpdmatch.8 README.NIS
|
|
|
371
|
+
|
|
|
372
|
+-LIB = libwrap.a
|
|
|
373
|
+-
|
|
|
374
|
+-all other: config-check tcpd tcpdmatch try-from safe_finger tcpdchk
|
|
|
375
|
++all other: config-check tcpd tcpdmatch try-from safe_finger tcpdchk $(LIB)
|
|
|
376
|
+
|
|
|
377
|
+ # Invalidate all object files when the compiler options (CFLAGS) have changed.
|
|
|
378
|
+
|
|
|
379
|
+ config-check:
|
|
|
380
|
+ @set +e; test -n "$(REAL_DAEMON_DIR)" || { make; exit 1; }
|
|
|
381
|
+- @set +e; echo $(CFLAGS) >/tmp/cflags.$$$$ ; \
|
|
|
382
|
+- if cmp cflags /tmp/cflags.$$$$ ; \
|
|
|
383
|
+- then rm /tmp/cflags.$$$$ ; \
|
|
|
384
|
+- else mv /tmp/cflags.$$$$ cflags ; \
|
|
|
385
|
++ @set +e; echo $(CFLAGS) >cflags.new ; \
|
|
|
386
|
++ if cmp cflags cflags.new ; \
|
|
|
387
|
++ then rm cflags.new ; \
|
|
|
388
|
++ else mv cflags.new cflags ; \
|
|
|
389
|
+ fi >/dev/null 2>/dev/null
|
|
|
390
|
++ @if [ ! -d shared ]; then mkdir shared; fi
|
|
|
391
|
+
|
|
|
392
|
+ $(LIB): $(LIB_OBJ)
|
|
|
393
|
+ rm -f $(LIB)
|
|
|
394
|
+ $(AR) $(ARFLAGS) $(LIB) $(LIB_OBJ)
|
|
|
395
|
+ -$(RANLIB) $(LIB)
|
|
|
396
|
+
|
|
|
397
|
+-tcpd: tcpd.o $(LIB)
|
|
|
398
|
+- $(CC) $(CFLAGS) -o $@ tcpd.o $(LIB) $(LIBS)
|
|
|
399
|
++$(SHLIB): $(SHLIB_OBJ)
|
|
|
400
|
++ rm -f $(SHLIB)
|
|
|
401
|
++ $(CC) -o $(SHLIB) $(SHLINKFLAGS) $(SHLIB_OBJ)
|
|
|
402
|
++ ln -s $(notdir $(SHLIB)) $(SHLIBSOMAJ)
|
|
|
403
|
++ ln -s $(notdir $(SHLIBSOMAJ)) $(SHLIBSO)
|
|
|
404
|
++
|
|
|
405
|
++tcpd: tcpd.o $(SHLIB)
|
|
|
406
|
++ $(CC) $(CFLAGS) -o $@ tcpd.o $(SHLIBFLAGS)
|
|
|
407
|
+
|
|
|
408
|
+-miscd: miscd.o $(LIB)
|
|
|
409
|
+- $(CC) $(CFLAGS) -o $@ miscd.o $(LIB) $(LIBS)
|
|
|
410
|
++miscd: miscd.o $(SHLIB)
|
|
|
411
|
++ $(CC) $(CFLAGS) -o $@ miscd.o $(SHLIBFLAGS)
|
|
|
412
|
+
|
|
|
413
|
+-safe_finger: safe_finger.o $(LIB)
|
|
|
414
|
+- $(CC) $(CFLAGS) -o $@ safe_finger.o $(LIB) $(LIBS)
|
|
|
415
|
++safe_finger: safe_finger.o $(SHLIB)
|
|
|
416
|
++ $(CC) $(CFLAGS) -o $@ safe_finger.o $(SHLIBFLAGS)
|
|
|
417
|
+
|
|
|
418
|
+ TCPDMATCH_OBJ = tcpdmatch.o fakelog.o inetcf.o scaffold.o
|
|
|
419
|
+
|
|
|
420
|
+-tcpdmatch: $(TCPDMATCH_OBJ) $(LIB)
|
|
|
421
|
+- $(CC) $(CFLAGS) -o $@ $(TCPDMATCH_OBJ) $(LIB) $(LIBS)
|
|
|
422
|
++tcpdmatch: $(TCPDMATCH_OBJ) $(SHLIB)
|
|
|
423
|
++ $(CC) $(CFLAGS) -o $@ $(TCPDMATCH_OBJ) $(SHLIBFLAGS)
|
|
|
424
|
+
|
|
|
425
|
+-try-from: try-from.o fakelog.o $(LIB)
|
|
|
426
|
+- $(CC) $(CFLAGS) -o $@ try-from.o fakelog.o $(LIB) $(LIBS)
|
|
|
427
|
++try-from: try-from.o fakelog.o $(SHLIB)
|
|
|
428
|
++ $(CC) $(CFLAGS) -o $@ try-from.o fakelog.o $(SHLIBFLAGS)
|
|
|
429
|
+
|
|
|
430
|
+ TCPDCHK_OBJ = tcpdchk.o fakelog.o inetcf.o scaffold.o
|
|
|
431
|
+
|
|
|
432
|
+-tcpdchk: $(TCPDCHK_OBJ) $(LIB)
|
|
|
433
|
+- $(CC) $(CFLAGS) -o $@ $(TCPDCHK_OBJ) $(LIB) $(LIBS)
|
|
|
434
|
++tcpdchk: $(TCPDCHK_OBJ) $(SHLIB)
|
|
|
435
|
++ $(CC) $(CFLAGS) -o $@ $(TCPDCHK_OBJ) $(SHLIBFLAGS)
|
|
|
436
|
++
|
|
|
437
|
++install: install-lib install-bin install-dev
|
|
|
438
|
++
|
|
|
439
|
++install-lib:
|
|
|
440
|
++ install -o root -g root -m 0644 $(SHLIB) ${DESTDIR}/lib/
|
|
|
441
|
++ ln -s $(notdir $(SHLIB)) ${DESTDIR}/lib/$(notdir $(SHLIBSOMAJ))
|
|
|
442
|
++
|
|
|
443
|
++install-bin:
|
|
|
444
|
++ install -o root -g root -m 0755 tcpd ${DESTDIR}/usr/sbin/
|
|
|
445
|
++ install -o root -g root -m 0755 tcpdchk ${DESTDIR}/usr/sbin/
|
|
|
446
|
++ install -o root -g root -m 0755 tcpdmatch ${DESTDIR}/usr/sbin/
|
|
|
447
|
++ install -o root -g root -m 0755 try-from ${DESTDIR}/usr/sbin/
|
|
|
448
|
++ install -o root -g root -m 0755 safe_finger ${DESTDIR}/usr/sbin/
|
|
|
449
|
++ install -o root -g root -m 0644 tcpd.8 ${DESTDIR}/usr/share/man/man8/
|
|
|
450
|
++ install -o root -g root -m 0644 tcpdchk.8 ${DESTDIR}/usr/share/man/man8/
|
|
|
451
|
++ install -o root -g root -m 0644 tcpdmatch.8 ${DESTDIR}/usr/share/man/man8/
|
|
|
452
|
++ install -o root -g root -m 0644 hosts_access.5 ${DESTDIR}/usr/share/man/man5/
|
|
|
453
|
++ install -o root -g root -m 0644 hosts_options.5 ${DESTDIR}/usr/share/man/man5/
|
|
|
454
|
++
|
|
|
455
|
++install-dev:
|
|
|
456
|
++ ln -s /lib/$(notdir $(SHLIBSOMAJ)) ${DESTDIR}/usr/lib/$(notdir $(SHLIBSO))
|
|
|
457
|
++ install -o root -g root -m 0644 hosts_access.3 ${DESTDIR}/usr/share/man/man3/
|
|
|
458
|
++ install -o root -g root -m 0644 tcpd.h ${DESTDIR}/usr/include/
|
|
|
459
|
++ install -o root -g root -m 0644 $(LIB) ${DESTDIR}/usr/lib/
|
|
|
460
|
++ ln -s hosts_access.3 ${DESTDIR}/usr/share/man/man3/hosts_ctl.3
|
|
|
461
|
++ ln -s hosts_access.3 ${DESTDIR}/usr/share/man/man3/request_init.3
|
|
|
462
|
++ ln -s hosts_access.3 ${DESTDIR}/usr/share/man/man3/request_set.3
|
|
|
463
|
+
|
|
|
464
|
+ shar: $(KIT)
|
|
|
465
|
+ @shar $(KIT)
|
|
|
466
|
+@@ -739,7 +806,8 @@ archive:
|
|
|
467
|
+
|
|
|
468
|
+ clean:
|
|
|
469
|
+ rm -f tcpd miscd safe_finger tcpdmatch tcpdchk try-from *.[oa] core \
|
|
|
470
|
+- cflags
|
|
|
471
|
++ cflags libwrap*.so*
|
|
|
472
|
++ rm -rf shared
|
|
|
473
|
+
|
|
|
474
|
+ tidy: clean
|
|
|
475
|
+ chmod -R a+r .
|
|
|
476
|
+@@ -885,5 +953,6 @@ update.o: cflags
|
|
|
477
|
+ update.o: mystdarg.h
|
|
|
478
|
+ update.o: tcpd.h
|
|
|
479
|
+ vfprintf.o: cflags
|
|
|
480
|
++weak_symbols.o: tcpd.h
|
|
|
481
|
+ workarounds.o: cflags
|
|
|
482
|
+ workarounds.o: tcpd.h
|
|
|
483
|
+--- a/hosts_access.5
|
|
|
484
|
++++ b/hosts_access.5
|
|
|
485
|
+@@ -8,9 +8,9 @@ name, host name/address) patterns. Exam
|
|
|
486
|
+ impatient reader is encouraged to skip to the EXAMPLES section for a
|
|
|
487
|
+ quick introduction.
|
|
|
488
|
+ .PP
|
|
|
489
|
+-An extended version of the access control language is described in the
|
|
|
490
|
+-\fIhosts_options\fR(5) document. The extensions are turned on at
|
|
|
491
|
+-program build time by building with -DPROCESS_OPTIONS.
|
|
|
492
|
++The extended version of the access control language is described in the
|
|
|
493
|
++\fIhosts_options\fR(5) document. \fBNote that this language supersedes
|
|
|
494
|
++the meaning of \fIshell_command\fB as documented below.\fR
|
|
|
495
|
+ .PP
|
|
|
496
|
+ In the following text, \fIdaemon\fR is the the process name of a
|
|
|
497
|
+ network daemon process, and \fIclient\fR is the name and/or address of
|
|
|
498
|
+@@ -40,7 +40,7 @@ A newline character is ignored when it i
|
|
|
499
|
+ character. This permits you to break up long lines so that they are
|
|
|
500
|
+ easier to edit.
|
|
|
501
|
+ .IP \(bu
|
|
|
502
|
+-Blank lines or lines that begin with a `#\' character are ignored.
|
|
|
503
|
++Blank lines or lines that begin with a `#' character are ignored.
|
|
|
504
|
+ This permits you to insert comments and whitespace so that the tables
|
|
|
505
|
+ are easier to read.
|
|
|
506
|
+ .IP \(bu
|
|
|
507
|
+@@ -69,26 +69,33 @@ checks are case insensitive.
|
|
|
508
|
+ .SH PATTERNS
|
|
|
509
|
+ The access control language implements the following patterns:
|
|
|
510
|
+ .IP \(bu
|
|
|
511
|
+-A string that begins with a `.\' character. A host name is matched if
|
|
|
512
|
++A string that begins with a `.' character. A host name is matched if
|
|
|
513
|
+ the last components of its name match the specified pattern. For
|
|
|
514
|
+-example, the pattern `.tue.nl\' matches the host name
|
|
|
515
|
+-`wzv.win.tue.nl\'.
|
|
|
516
|
++example, the pattern `.tue.nl' matches the host name
|
|
|
517
|
++`wzv.win.tue.nl'.
|
|
|
518
|
+ .IP \(bu
|
|
|
519
|
+-A string that ends with a `.\' character. A host address is matched if
|
|
|
520
|
++A string that ends with a `.' character. A host address is matched if
|
|
|
521
|
+ its first numeric fields match the given string. For example, the
|
|
|
522
|
+-pattern `131.155.\' matches the address of (almost) every host on the
|
|
|
523
|
++pattern `131.155.' matches the address of (almost) every host on the
|
|
|
524
|
+ Eind\%hoven University network (131.155.x.x).
|
|
|
525
|
+ .IP \(bu
|
|
|
526
|
+-A string that begins with an `@\' character is treated as an NIS
|
|
|
527
|
++A string that begins with an `@' character is treated as an NIS
|
|
|
528
|
+ (formerly YP) netgroup name. A host name is matched if it is a host
|
|
|
529
|
+ member of the specified netgroup. Netgroup matches are not supported
|
|
|
530
|
+ for daemon process names or for client user names.
|
|
|
531
|
+ .IP \(bu
|
|
|
532
|
+-An expression of the form `n.n.n.n/m.m.m.m\' is interpreted as a
|
|
|
533
|
+-`net/mask\' pair. A host address is matched if `net\' is equal to the
|
|
|
534
|
+-bitwise AND of the address and the `mask\'. For example, the net/mask
|
|
|
535
|
+-pattern `131.155.72.0/255.255.254.0\' matches every address in the
|
|
|
536
|
+-range `131.155.72.0\' through `131.155.73.255\'.
|
|
|
537
|
++An expression of the form `n.n.n.n/m.m.m.m' is interpreted as a
|
|
|
538
|
++`net/mask' pair. A host address is matched if `net' is equal to the
|
|
|
539
|
++bitwise AND of the address and the `mask'. For example, the net/mask
|
|
|
540
|
++pattern `131.155.72.0/255.255.254.0' matches every address in the
|
|
|
541
|
++range `131.155.72.0' through `131.155.73.255'.
|
|
|
542
|
++.IP \(bu
|
|
|
543
|
++A string that begins with a `/' character is treated as a file
|
|
|
544
|
++name. A host name or address is matched if it matches any host name
|
|
|
545
|
++or address pattern listed in the named file. The file format is
|
|
|
546
|
++zero or more lines with zero or more host name or address patterns
|
|
|
547
|
++separated by whitespace. A file name pattern can be used anywhere
|
|
|
548
|
++a host name or address pattern can be used.
|
|
|
549
|
+ .SH WILDCARDS
|
|
|
550
|
+ The access control language supports explicit wildcards:
|
|
|
551
|
+ .IP ALL
|
|
|
552
|
+@@ -115,19 +122,19 @@ without -DPARANOID when you want more co
|
|
|
553
|
+ .ne 6
|
|
|
554
|
+ .SH OPERATORS
|
|
|
555
|
+ .IP EXCEPT
|
|
|
556
|
+-Intended use is of the form: `list_1 EXCEPT list_2\'; this construct
|
|
|
557
|
++Intended use is of the form: `list_1 EXCEPT list_2'; this construct
|
|
|
558
|
+ matches anything that matches \fIlist_1\fR unless it matches
|
|
|
559
|
+ \fIlist_2\fR. The EXCEPT operator can be used in daemon_lists and in
|
|
|
560
|
+ client_lists. The EXCEPT operator can be nested: if the control
|
|
|
561
|
+-language would permit the use of parentheses, `a EXCEPT b EXCEPT c\'
|
|
|
562
|
+-would parse as `(a EXCEPT (b EXCEPT c))\'.
|
|
|
563
|
++language would permit the use of parentheses, `a EXCEPT b EXCEPT c'
|
|
|
564
|
++would parse as `(a EXCEPT (b EXCEPT c))'.
|
|
|
565
|
+ .br
|
|
|
566
|
+ .ne 6
|
|
|
567
|
+ .SH SHELL COMMANDS
|
|
|
568
|
+ If the first-matched access control rule contains a shell command, that
|
|
|
569
|
+ command is subjected to %<letter> substitutions (see next section).
|
|
|
570
|
+ The result is executed by a \fI/bin/sh\fR child process with standard
|
|
|
571
|
+-input, output and error connected to \fI/dev/null\fR. Specify an `&\'
|
|
|
572
|
++input, output and error connected to \fI/dev/null\fR. Specify an `&'
|
|
|
573
|
+ at the end of the command if you do not want to wait until it has
|
|
|
574
|
+ completed.
|
|
|
575
|
+ .PP
|
|
|
576
|
+@@ -159,7 +166,7 @@ depending on how much information is ava
|
|
|
577
|
+ .IP %u
|
|
|
578
|
+ The client user name (or "unknown").
|
|
|
579
|
+ .IP %%
|
|
|
580
|
+-Expands to a single `%\' character.
|
|
|
581
|
++Expands to a single `%' character.
|
|
|
582
|
+ .PP
|
|
|
583
|
+ Characters in % expansions that may confuse the shell are replaced by
|
|
|
584
|
+ underscores.
|
|
|
585
|
+@@ -243,9 +250,9 @@ A positive IDENT lookup result (the clie
|
|
|
586
|
+ less trustworthy. It is possible for an intruder to spoof both the
|
|
|
587
|
+ client connection and the IDENT lookup, although doing so is much
|
|
|
588
|
+ harder than spoofing just a client connection. It may also be that
|
|
|
589
|
+-the client\'s IDENT server is lying.
|
|
|
590
|
++the client's IDENT server is lying.
|
|
|
591
|
+ .PP
|
|
|
592
|
+-Note: IDENT lookups don\'t work with UDP services.
|
|
|
593
|
++Note: IDENT lookups don't work with UDP services.
|
|
|
594
|
+ .SH EXAMPLES
|
|
|
595
|
+ The language is flexible enough that different types of access control
|
|
|
596
|
+ policy can be expressed with a minimum of fuss. Although the language
|
|
|
597
|
+@@ -285,7 +292,7 @@ ALL: LOCAL @some_netgroup
|
|
|
598
|
+ .br
|
|
|
599
|
+ ALL: .foobar.edu EXCEPT terminalserver.foobar.edu
|
|
|
600
|
+ .PP
|
|
|
601
|
+-The first rule permits access from hosts in the local domain (no `.\'
|
|
|
602
|
++The first rule permits access from hosts in the local domain (no `.'
|
|
|
603
|
+ in the host name) and from members of the \fIsome_netgroup\fP
|
|
|
604
|
+ netgroup. The second rule permits access from all hosts in the
|
|
|
605
|
+ \fIfoobar.edu\fP domain (notice the leading dot), with the exception of
|
|
|
606
|
+@@ -322,8 +329,8 @@ in.tftpd: LOCAL, .my.domain
|
|
|
607
|
+ /etc/hosts.deny:
|
|
|
608
|
+ .in +3
|
|
|
609
|
+ .nf
|
|
|
610
|
+-in.tftpd: ALL: (/some/where/safe_finger -l @%h | \\
|
|
|
611
|
+- /usr/ucb/mail -s %d-%h root) &
|
|
|
612
|
++in.tftpd: ALL: (/usr/sbin/safe_finger -l @%h | \\
|
|
|
613
|
++ /usr/bin/mail -s %d-%h root) &
|
|
|
614
|
+ .fi
|
|
|
615
|
+ .PP
|
|
|
616
|
+ The safe_finger command comes with the tcpd wrapper and should be
|
|
|
617
|
+@@ -349,7 +356,7 @@ control rule; when the length of an acce
|
|
|
618
|
+ capacity of an internal buffer; when an access control rule is not
|
|
|
619
|
+ terminated by a newline character; when the result of %<letter>
|
|
|
620
|
+ expansion would overflow an internal buffer; when a system call fails
|
|
|
621
|
+-that shouldn\'t. All problems are reported via the syslog daemon.
|
|
|
622
|
++that shouldn't. All problems are reported via the syslog daemon.
|
|
|
623
|
+ .SH FILES
|
|
|
624
|
+ .na
|
|
|
625
|
+ .nf
|
|
|
626
|
+--- a/rfc931.c
|
|
|
627
|
++++ b/rfc931.c
|
|
|
628
|
+@@ -33,7 +33,7 @@ static char sccsid[] = "@(#) rfc931.c 1.
|
|
|
629
|
+
|
|
|
630
|
+ int rfc931_timeout = RFC931_TIMEOUT;/* Global so it can be changed */
|
|
|
631
|
+
|
|
|
632
|
+-static jmp_buf timebuf;
|
|
|
633
|
++static sigjmp_buf timebuf;
|
|
|
634
|
+
|
|
|
635
|
+ /* fsocket - open stdio stream on top of socket */
|
|
|
636
|
+
|
|
|
637
|
+@@ -62,7 +62,7 @@ int protocol;
|
|
|
638
|
+ static void timeout(sig)
|
|
|
639
|
+ int sig;
|
|
|
640
|
+ {
|
|
|
641
|
+- longjmp(timebuf, sig);
|
|
|
642
|
++ siglongjmp(timebuf, sig);
|
|
|
643
|
+ }
|
|
|
644
|
+
|
|
|
645
|
+ /* rfc931 - return remote user name, given socket structures */
|
|
|
646
|
+@@ -99,7 +99,7 @@ char *dest;
|
|
|
647
|
+ * Set up a timer so we won't get stuck while waiting for the server.
|
|
|
648
|
+ */
|
|
|
649
|
+
|
|
|
650
|
+- if (setjmp(timebuf) == 0) {
|
|
|
651
|
++ if (sigsetjmp(timebuf,1) == 0) {
|
|
|
652
|
+ signal(SIGALRM, timeout);
|
|
|
653
|
+ alarm(rfc931_timeout);
|
|
|
654
|
+
|
|
|
655
|
+--- a/tcpd.8
|
|
|
656
|
++++ b/tcpd.8
|
|
|
657
|
+@@ -94,7 +94,7 @@ configuration files.
|
|
|
658
|
+ .PP
|
|
|
659
|
+ The example assumes that the network daemons live in /usr/etc. On some
|
|
|
660
|
+ systems, network daemons live in /usr/sbin or in /usr/libexec, or have
|
|
|
661
|
+-no `in.\' prefix to their name.
|
|
|
662
|
++no `in.' prefix to their name.
|
|
|
663
|
+ .SH EXAMPLE 2
|
|
|
664
|
+ This example applies when \fItcpd\fR expects that the network daemons
|
|
|
665
|
+ are left in their original place.
|
|
|
666
|
+@@ -110,26 +110,26 @@ finger stream tcp nowait nobody /us
|
|
|
667
|
+ becomes:
|
|
|
668
|
+ .sp
|
|
|
669
|
+ .ti +5
|
|
|
670
|
+-finger stream tcp nowait nobody /some/where/tcpd in.fingerd
|
|
|
671
|
++finger stream tcp nowait nobody /usr/sbin/tcpd in.fingerd
|
|
|
672
|
+ .sp
|
|
|
673
|
+ .fi
|
|
|
674
|
+ .PP
|
|
|
675
|
+ The example assumes that the network daemons live in /usr/etc. On some
|
|
|
676
|
+ systems, network daemons live in /usr/sbin or in /usr/libexec, the
|
|
|
677
|
+-daemons have no `in.\' prefix to their name, or there is no userid
|
|
|
678
|
++daemons have no `in.' prefix to their name, or there is no userid
|
|
|
679
|
+ field in the inetd configuration file.
|
|
|
680
|
+ .PP
|
|
|
681
|
+ Similar changes will be needed for the other services that are to be
|
|
|
682
|
+-covered by \fItcpd\fR. Send a `kill -HUP\' to the \fIinetd\fR(8)
|
|
|
683
|
++covered by \fItcpd\fR. Send a `kill -HUP' to the \fIinetd\fR(8)
|
|
|
684
|
+ process to make the changes effective. AIX users may also have to
|
|
|
685
|
+-execute the `inetimp\' command.
|
|
|
686
|
++execute the `inetimp' command.
|
|
|
687
|
+ .SH EXAMPLE 3
|
|
|
688
|
+ In the case of daemons that do not live in a common directory ("secret"
|
|
|
689
|
+ or otherwise), edit the \fIinetd\fR configuration file so that it
|
|
|
690
|
+ specifies an absolute path name for the process name field. For example:
|
|
|
691
|
+ .nf
|
|
|
692
|
+ .sp
|
|
|
693
|
+- ntalk dgram udp wait root /some/where/tcpd /usr/local/lib/ntalkd
|
|
|
694
|
++ ntalk dgram udp wait root /usr/sbin/tcpd /usr/sbin/in.ntalkd
|
|
|
695
|
+ .sp
|
|
|
696
|
+ .fi
|
|
|
697
|
+ .PP
|
|
|
698
|
+--- a/hosts_access.3
|
|
|
699
|
++++ b/hosts_access.3
|
|
|
700
|
+@@ -3,7 +3,7 @@
|
|
|
701
|
+ hosts_access, hosts_ctl, request_init, request_set \- access control library
|
|
|
702
|
+ .SH SYNOPSIS
|
|
|
703
|
+ .nf
|
|
|
704
|
+-#include "tcpd.h"
|
|
|
705
|
++#include <tcpd.h>
|
|
|
706
|
+
|
|
|
707
|
+ extern int allow_severity;
|
|
|
708
|
+ extern int deny_severity;
|
|
|
709
|
+--- a/options.c
|
|
|
710
|
++++ b/options.c
|
|
|
711
|
+@@ -473,6 +473,9 @@ static struct syslog_names log_fac[] = {
|
|
|
712
|
+ #ifdef LOG_CRON
|
|
|
713
|
+ "cron", LOG_CRON,
|
|
|
714
|
+ #endif
|
|
|
715
|
++#ifdef LOG_FTP
|
|
|
716
|
++ "ftp", LOG_FTP,
|
|
|
717
|
++#endif
|
|
|
718
|
+ #ifdef LOG_LOCAL0
|
|
|
719
|
+ "local0", LOG_LOCAL0,
|
|
|
720
|
+ #endif
|
|
|
721
|
+--- a/fix_options.c
|
|
|
722
|
++++ b/fix_options.c
|
|
|
723
|
+@@ -35,7 +35,12 @@ struct request_info *request;
|
|
|
724
|
+ #ifdef IP_OPTIONS
|
|
|
725
|
+ unsigned char optbuf[BUFFER_SIZE / 3], *cp;
|
|
|
726
|
+ char lbuf[BUFFER_SIZE], *lp;
|
|
|
727
|
++#if !defined(__GLIBC__)
|
|
|
728
|
+ int optsize = sizeof(optbuf), ipproto;
|
|
|
729
|
++#else /* __GLIBC__ */
|
|
|
730
|
++ size_t optsize = sizeof(optbuf);
|
|
|
731
|
++ int ipproto;
|
|
|
732
|
++#endif /* __GLIBC__ */
|
|
|
733
|
+ struct protoent *ip;
|
|
|
734
|
+ int fd = request->fd;
|
|
|
735
|
+ unsigned int opt;
|
|
|
736
|
+--- a/workarounds.c
|
|
|
737
|
++++ b/workarounds.c
|
|
|
738
|
+@@ -163,7 +163,11 @@ int *fromlen;
|
|
|
739
|
+ int fix_getpeername(sock, sa, len)
|
|
|
740
|
+ int sock;
|
|
|
741
|
+ struct sockaddr *sa;
|
|
|
742
|
++#if !defined(__GLIBC__)
|
|
|
743
|
+ int *len;
|
|
|
744
|
++#else /* __GLIBC__ */
|
|
|
745
|
++size_t *len;
|
|
|
746
|
++#endif /* __GLIBC__ */
|
|
|
747
|
+ {
|
|
|
748
|
+ int ret;
|
|
|
749
|
+ struct sockaddr_in *sin = (struct sockaddr_in *) sa;
|
|
|
750
|
+--- a/socket.c
|
|
|
751
|
++++ b/socket.c
|
|
|
752
|
+@@ -76,7 +76,11 @@ struct request_info *request;
|
|
|
753
|
+ {
|
|
|
754
|
+ static struct sockaddr_in client;
|
|
|
755
|
+ static struct sockaddr_in server;
|
|
|
756
|
++#if !defined (__GLIBC__)
|
|
|
757
|
+ int len;
|
|
|
758
|
++#else /* __GLIBC__ */
|
|
|
759
|
++ size_t len;
|
|
|
760
|
++#endif /* __GLIBC__ */
|
|
|
761
|
+ char buf[BUFSIZ];
|
|
|
762
|
+ int fd = request->fd;
|
|
|
763
|
+
|
|
|
764
|
+@@ -224,7 +228,11 @@ int fd;
|
|
|
765
|
+ {
|
|
|
766
|
+ char buf[BUFSIZ];
|
|
|
767
|
+ struct sockaddr_in sin;
|
|
|
768
|
++#if !defined(__GLIBC__)
|
|
|
769
|
+ int size = sizeof(sin);
|
|
|
770
|
++#else /* __GLIBC__ */
|
|
|
771
|
++ size_t size = sizeof(sin);
|
|
|
772
|
++#endif /* __GLIBC__ */
|
|
|
773
|
+
|
|
|
774
|
+ /*
|
|
|
775
|
+ * Eat up the not-yet received datagram. Some systems insist on a
|
|
|
776
|
+--- a/safe_finger.c
|
|
|
777
|
++++ b/safe_finger.c
|
|
|
778
|
+@@ -26,21 +26,24 @@ static char sccsid[] = "@(#) safe_finger
|
|
|
779
|
+ #include <stdio.h>
|
|
|
780
|
+ #include <ctype.h>
|
|
|
781
|
+ #include <pwd.h>
|
|
|
782
|
++#include <syslog.h>
|
|
|
783
|
+
|
|
|
784
|
+ extern void exit();
|
|
|
785
|
+
|
|
|
786
|
+ /* Local stuff */
|
|
|
787
|
+
|
|
|
788
|
+-char path[] = "PATH=/bin:/usr/bin:/usr/ucb:/usr/bsd:/etc:/usr/etc:/usr/sbin";
|
|
|
789
|
++char path[] = "PATH=/bin:/usr/bin:/sbin:/usr/sbin";
|
|
|
790
|
+
|
|
|
791
|
+ #define TIME_LIMIT 60 /* Do not keep listinging forever */
|
|
|
792
|
+ #define INPUT_LENGTH 100000 /* Do not keep listinging forever */
|
|
|
793
|
+ #define LINE_LENGTH 128 /* Editors can choke on long lines */
|
|
|
794
|
+ #define FINGER_PROGRAM "finger" /* Most, if not all, UNIX systems */
|
|
|
795
|
+ #define UNPRIV_NAME "nobody" /* Preferred privilege level */
|
|
|
796
|
+-#define UNPRIV_UGID 32767 /* Default uid and gid */
|
|
|
797
|
++#define UNPRIV_UGID 65534 /* Default uid and gid */
|
|
|
798
|
+
|
|
|
799
|
+ int finger_pid;
|
|
|
800
|
++int allow_severity = SEVERITY;
|
|
|
801
|
++int deny_severity = LOG_WARNING;
|
|
|
802
|
+
|
|
|
803
|
+ void cleanup(sig)
|
|
|
804
|
+ int sig;
|
|
|
805
|
+--- a/hosts_options.5
|
|
|
806
|
++++ b/hosts_options.5
|
|
|
807
|
+@@ -58,12 +58,12 @@ Notice the leading dot on the domain nam
|
|
|
808
|
+ Execute, in a child process, the specified shell command, after
|
|
|
809
|
+ performing the %<letter> expansions described in the hosts_access(5)
|
|
|
810
|
+ manual page. The command is executed with stdin, stdout and stderr
|
|
|
811
|
+-connected to the null device, so that it won\'t mess up the
|
|
|
812
|
++connected to the null device, so that it won't mess up the
|
|
|
813
|
+ conversation with the client host. Example:
|
|
|
814
|
+ .sp
|
|
|
815
|
+ .nf
|
|
|
816
|
+ .ti +3
|
|
|
817
|
+-spawn (/some/where/safe_finger -l @%h | /usr/ucb/mail root) &
|
|
|
818
|
++spawn (/usr/sbin/safe_finger -l @%h | /usr/bin/mail root) &
|
|
|
819
|
+ .fi
|
|
|
820
|
+ .sp
|
|
|
821
|
+ executes, in a background child process, the shell command "safe_finger
|
|
|
822
|
+--- a/tcpdchk.c
|
|
|
823
|
++++ b/tcpdchk.c
|
|
|
824
|
+@@ -350,6 +350,8 @@ char *pat;
|
|
|
825
|
+ {
|
|
|
826
|
+ if (pat[0] == '@') {
|
|
|
827
|
+ tcpd_warn("%s: daemon name begins with \"@\"", pat);
|
|
|
828
|
++ } else if (pat[0] == '/') {
|
|
|
829
|
++ tcpd_warn("%s: daemon name begins with \"/\"", pat);
|
|
|
830
|
+ } else if (pat[0] == '.') {
|
|
|
831
|
+ tcpd_warn("%s: daemon name begins with dot", pat);
|
|
|
832
|
+ } else if (pat[strlen(pat) - 1] == '.') {
|
|
|
833
|
+@@ -382,6 +384,8 @@ char *pat;
|
|
|
834
|
+ {
|
|
|
835
|
+ if (pat[0] == '@') { /* @netgroup */
|
|
|
836
|
+ tcpd_warn("%s: user name begins with \"@\"", pat);
|
|
|
837
|
++ } else if (pat[0] == '/') {
|
|
|
838
|
++ tcpd_warn("%s: user name begins with \"/\"", pat);
|
|
|
839
|
+ } else if (pat[0] == '.') {
|
|
|
840
|
+ tcpd_warn("%s: user name begins with dot", pat);
|
|
|
841
|
+ } else if (pat[strlen(pat) - 1] == '.') {
|
|
|
842
|
+@@ -402,8 +406,13 @@ char *pat;
|
|
|
843
|
+ static int check_host(pat)
|
|
|
844
|
+ char *pat;
|
|
|
845
|
+ {
|
|
|
846
|
++ char buf[BUFSIZ];
|
|
|
847
|
+ char *mask;
|
|
|
848
|
+ int addr_count = 1;
|
|
|
849
|
++ FILE *fp;
|
|
|
850
|
++ struct tcpd_context saved_context;
|
|
|
851
|
++ char *cp;
|
|
|
852
|
++ char *wsp = " \t\r\n";
|
|
|
853
|
+
|
|
|
854
|
+ if (pat[0] == '@') { /* @netgroup */
|
|
|
855
|
+ #ifdef NO_NETGRENT
|
|
|
856
|
+@@ -422,6 +431,21 @@ char *pat;
|
|
|
857
|
+ tcpd_warn("netgroup support disabled");
|
|
|
858
|
+ #endif
|
|
|
859
|
+ #endif
|
|
|
860
|
++ } else if (pat[0] == '/') { /* /path/name */
|
|
|
861
|
++ if ((fp = fopen(pat, "r")) != 0) {
|
|
|
862
|
++ saved_context = tcpd_context;
|
|
|
863
|
++ tcpd_context.file = pat;
|
|
|
864
|
++ tcpd_context.line = 0;
|
|
|
865
|
++ while (fgets(buf, sizeof(buf), fp)) {
|
|
|
866
|
++ tcpd_context.line++;
|
|
|
867
|
++ for (cp = strtok(buf, wsp); cp; cp = strtok((char *) 0, wsp))
|
|
|
868
|
++ check_host(cp);
|
|
|
869
|
++ }
|
|
|
870
|
++ tcpd_context = saved_context;
|
|
|
871
|
++ fclose(fp);
|
|
|
872
|
++ } else if (errno != ENOENT) {
|
|
|
873
|
++ tcpd_warn("open %s: %m", pat);
|
|
|
874
|
++ }
|
|
|
875
|
+ } else if (mask = split_at(pat, '/')) { /* network/netmask */
|
|
|
876
|
+ if (dot_quad_addr(pat) == INADDR_NONE
|
|
|
877
|
+ || dot_quad_addr(mask) == INADDR_NONE)
|
|
|
878
|
+--- a/percent_m.c
|
|
|
879
|
++++ b/percent_m.c
|
|
|
880
|
+@@ -13,7 +13,7 @@ static char sccsid[] = "@(#) percent_m.c
|
|
|
881
|
+ #include <string.h>
|
|
|
882
|
+
|
|
|
883
|
+ extern int errno;
|
|
|
884
|
+-#ifndef SYS_ERRLIST_DEFINED
|
|
|
885
|
++#if !defined(SYS_ERRLIST_DEFINED) && !defined(HAVE_STRERROR)
|
|
|
886
|
+ extern char *sys_errlist[];
|
|
|
887
|
+ extern int sys_nerr;
|
|
|
888
|
+ #endif
|
|
|
889
|
+@@ -29,11 +29,15 @@ char *ibuf;
|
|
|
890
|
+
|
|
|
891
|
+ while (*bp = *cp)
|
|
|
892
|
+ if (*cp == '%' && cp[1] == 'm') {
|
|
|
893
|
++#ifdef HAVE_STRERROR
|
|
|
894
|
++ strcpy(bp, strerror(errno));
|
|
|
895
|
++#else
|
|
|
896
|
+ if (errno < sys_nerr && errno > 0) {
|
|
|
897
|
+ strcpy(bp, sys_errlist[errno]);
|
|
|
898
|
+ } else {
|
|
|
899
|
+ sprintf(bp, "Unknown error %d", errno);
|
|
|
900
|
+ }
|
|
|
901
|
++#endif
|
|
|
902
|
+ bp += strlen(bp);
|
|
|
903
|
+ cp += 2;
|
|
|
904
|
+ } else {
|
|
|
905
|
+--- a/scaffold.c
|
|
|
906
|
++++ b/scaffold.c
|
|
|
907
|
+@@ -180,10 +180,12 @@ struct request_info *request;
|
|
|
908
|
+
|
|
|
909
|
+ /* ARGSUSED */
|
|
|
910
|
+
|
|
|
911
|
+-void rfc931(request)
|
|
|
912
|
+-struct request_info *request;
|
|
|
913
|
++void rfc931(rmt_sin, our_sin, dest)
|
|
|
914
|
++struct sockaddr_in *rmt_sin;
|
|
|
915
|
++struct sockaddr_in *our_sin;
|
|
|
916
|
++char *dest;
|
|
|
917
|
+ {
|
|
|
918
|
+- strcpy(request->user, unknown);
|
|
|
919
|
++ strcpy(dest, unknown);
|
|
|
920
|
+ }
|
|
|
921
|
+
|
|
|
922
|
+ /* check_path - examine accessibility */
|
|
|
923
|
+--- /dev/null
|
|
|
924
|
++++ b/weak_symbols.c
|
|
|
925
|
+@@ -0,0 +1,11 @@
|
|
|
926
|
++ /*
|
|
|
927
|
++ * @(#) weak_symbols.h 1.5 99/12/29 23:50
|
|
|
928
|
++ *
|
|
|
929
|
++ * Author: Anthony Towns <ajt@debian.org>
|
|
|
930
|
++ */
|
|
|
931
|
++
|
|
|
932
|
++#ifdef HAVE_WEAKSYMS
|
|
|
933
|
++#include <syslog.h>
|
|
|
934
|
++int deny_severity = LOG_WARNING;
|
|
|
935
|
++int allow_severity = SEVERITY;
|
|
|
936
|
++#endif
|
Peter Wagner
10 년 전