diff options
Diffstat (limited to 'tcpd.h')
| -rw-r--r-- | tcpd.h | 91 |
1 files changed, 66 insertions, 25 deletions
@@ -4,6 +4,25 @@ * Author: Wietse Venema, Eindhoven University of Technology, The Netherlands. */ +#ifndef _TCPWRAPPERS_TCPD_H +#define _TCPWRAPPERS_TCPD_H + +/* someone else may have defined this */ +#undef __P + +/* use prototypes if we have an ANSI C compiler or are using C++ */ +#if defined(__STDC__) || defined(__cplusplus) +#define __P(args) args +#else +#define __P(args) () +#endif + +/* 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 +48,10 @@ 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) __P((int)); /* datagram sink function or 0 */ + void (*hostname) __P((struct host_info *)); /* address to printable hostname */ + void (*hostaddr) __P((struct host_info *)); /* address to printable address */ + void (*cleanup) __P((struct request_info *)); /* cleanup function or 0 */ struct netconfig *config; /* netdir handle */ }; @@ -65,25 +84,34 @@ extern char paranoid[]; /* Global functions. */ #if defined(TLI) || defined(PTX) || defined(TLI_SEQUENT) -extern void fromhost(); /* get/validate client host info */ +extern void fromhost __P((struct request_info *)); /* get/validate client host info */ #else #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 void shell_cmd __P((char *)); /* execute shell command */ +extern char *percent_x __P((char *, int, char *, struct request_info *)); /* do %<char> expansion */ +#ifdef INET6 +extern void rfc931 __P((struct sockaddr *, struct sockaddr *, char *)); /* client name from RFC 931 daemon */ +#else +extern void rfc931 __P((struct sockaddr_in *, struct sockaddr_in *, char *)); /* client name from RFC 931 daemon */ +#endif +extern void clean_exit __P((struct request_info *)); /* clean up and exit */ +extern void refuse __P((struct request_info *)); /* clean up and exit */ +extern char *xgets __P((char *, int, FILE *)); /* fgets() on steroids */ +extern char *split_at __P((char *, int)); /* strchr() and split */ +extern unsigned long dot_quad_addr __P((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 */ @@ -96,9 +124,14 @@ extern int resident; /* > 0 if resident process */ */ #ifdef __STDC__ +extern int hosts_access(struct request_info *request); +extern int hosts_ctl(char *daemon, char *client_name, char *client_addr, + char *client_user); extern struct request_info *request_init(struct request_info *,...); extern struct request_info *request_set(struct request_info *,...); #else +extern int hosts_access(); +extern int hosts_ctl(); extern struct request_info *request_init(); /* initialize request */ extern struct request_info *request_set(); /* update request structure */ #endif @@ -121,27 +154,31 @@ extern struct request_info *request_set(); /* update request structure */ * 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 __P((struct request_info *)); /* client user */ +extern char *eval_hostname __P((struct host_info *)); /* printable hostname */ +extern char *eval_hostaddr __P((struct host_info *)); /* printable host address */ +extern char *eval_hostinfo __P((struct host_info *)); /* host name or address */ +extern char *eval_client __P((struct request_info *)); /* whatever is available */ +extern char *eval_server __P((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 __P((struct request_info *)); +/* translate address to hostname */ +extern void sock_hostname __P((struct host_info *)); +/* address to printable address */ +extern void sock_hostaddr __P((struct host_info *)); + #define sock_methods(r) \ { (r)->hostname = sock_hostname; (r)->hostaddr = sock_hostaddr; } /* The System V Transport-Level Interface (TLI) interface. */ #if defined(TLI) || defined(PTX) || defined(TLI_SEQUENT) -extern void tli_host(); /* look up endpoint addresses etc. */ +extern void tli_host __P((struct request_info *)); /* look up endpoint addresses etc. */ #endif /* @@ -182,7 +219,7 @@ extern struct tcpd_context tcpd_context; * behavior. */ -extern void process_options(); /* execute options */ +extern void process_options __P((char *, struct request_info *)); /* execute options */ extern int dry_run; /* verification flag */ /* Bug workarounds. */ @@ -221,3 +258,7 @@ extern char *fix_strtok(); #define strtok my_strtok extern char *my_strtok(); #endif + +__END_DECLS + +#endif /* tcpd.h */ |