diff options
Diffstat (limited to 'contrib/tcpdump/addrtoname.c')
| -rw-r--r-- | contrib/tcpdump/addrtoname.c | 34 |
1 files changed, 22 insertions, 12 deletions
diff --git a/contrib/tcpdump/addrtoname.c b/contrib/tcpdump/addrtoname.c index fbeb2c1..6996b5c 100644 --- a/contrib/tcpdump/addrtoname.c +++ b/contrib/tcpdump/addrtoname.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 1990, 1991, 1992, 1993, 1994, 1995, 1996 + * Copyright (c) 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997 * The Regents of the University of California. All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -23,7 +23,7 @@ */ #ifndef lint static const char rcsid[] = - "@(#) $Header: addrtoname.c,v 1.54 96/12/05 22:10:19 leres Exp $ (LBL)"; + "@(#) $Header: addrtoname.c,v 1.61 97/06/15 13:20:18 leres Exp $ (LBL)"; #endif #include <sys/types.h> @@ -45,6 +45,12 @@ struct rtentry; #include <netdb.h> #include <pcap.h> #include <pcap-namedb.h> +#ifdef HAVE_MALLOC_H +#include <malloc.h> +#endif +#ifdef HAVE_MEMORY_H +#include <memory.h> +#endif #include <signal.h> #include <stdio.h> #include <string.h> @@ -54,6 +60,8 @@ struct rtentry; #include "interface.h" #include "addrtoname.h" #include "llc.h" +#include "savestr.h" +#include "setsignal.h" /* Forwards */ static RETSIGTYPE nohostname(int); @@ -208,16 +216,18 @@ getname(const u_char *ap) /* * Only print names when: * (1) -n was not given. - * (2) Address is foreign and -f was given. If -f was not - * present, f_netmask and f_local are 0 and the second - * test will succeed. - * (3) The host portion is not 0 (i.e., a network address). - * (4) The host portion is not broadcast. + * (2) Address is foreign and -f was given. (If -f was not + * give, f_netmask and f_local are 0 and the test + * evaluates to true) + * (3) -a was given or the host portion is not all ones + * nor all zeros (i.e. not a network or broadcast address) */ - if (!nflag && (addr & f_netmask) == f_localnet - && (addr &~ netmask) != 0 && (addr | netmask) != 0xffffffff) { + if (!nflag && + (addr & f_netmask) == f_localnet && + (aflag || + !((addr & ~netmask) == 0 || (addr | netmask) == 0xffffffff))) { if (!setjmp(getname_env)) { - (void)signal(SIGALRM, nohostname); + (void)setsignal(SIGALRM, nohostname); (void)alarm(20); hp = gethostbyaddr((char *)&addr, 4, AF_INET); (void)alarm(0); @@ -307,7 +317,7 @@ lookup_nsap(register const u_char *nsap) tp->e_nsap = (u_char *)malloc(nlen + 1); if (tp->e_nsap == NULL) error("lookup_nsap: malloc"); - memcpy(tp->e_nsap, nsap, nlen + 1); + memcpy((char *)tp->e_nsap, (char *)nsap, nlen + 1); tp->e_nxt = (struct enamemem *)calloc(1, sizeof(*tp)); if (tp->e_nxt == NULL) error("lookup_nsap: calloc"); @@ -696,7 +706,7 @@ init_llcsaparray(void) * of the local network. mask is its subnet mask. */ void -init_addrtoname(int fflag, u_int32_t localnet, u_int32_t mask) +init_addrtoname(u_int32_t localnet, u_int32_t mask) { netmask = mask; if (fflag) { |
