* Use this for IPv4 addresses. It's defined as an array of octets, so
* that it's not aligned on its "natural" boundary, and it's defined as
* a structure in the hopes that this makes it harder to naively use
- * EXTRACT_32BITS() to extract the value - in many cases you just want
+ * EXTRACT_BE_U_4() to extract the value - in many cases you just want
* to use UNALIGNED_MEMCPY() to copy its value, so that it remains in
* network byte order.
+ *
+ * (Among other things, we don't want somebody thinking "IPv4 addresses,
+ * they're in network byte order, so we want EXTRACT_BE_U_4(), right?"
+ * and then handing the result to system APIs that expect network-order
+ * IPv4 addresses, such as inet_ntop(), on their little-endian PCs, getting
+ * the wrong behavior, and concluding "oh, it must be in *little*-endian
+ * order" and "fixing" it to use EXTRACT_LE_U_4(). Yes, people do this;
+ * that's why Wireshark has tvb_get_ipv4(), to extract an IPv4 address from
+ * a packet data buffer; it was introduced in reaction to somebody who
+ * *had* done that.)
*/
typedef struct {
unsigned char bytes[4];
extern const char istr[];
#if !defined(HAVE_SNPRINTF)
-int snprintf (char *str, size_t sz, const char *format, ...)
-#ifdef __ATTRIBUTE___FORMAT_OK
- __attribute__((format (printf, 3, 4)))
-#endif /* __ATTRIBUTE___FORMAT_OK */
- ;
+int snprintf (char *str, size_t sz, FORMAT_STRING(const char *format), ...)
+ PRINTFLIKE(3, 4);
#endif /* !defined(HAVE_SNPRINTF) */
#if !defined(HAVE_VSNPRINTF)
-int vsnprintf (char *str, size_t sz, const char *format, va_list ap)
-#ifdef __ATTRIBUTE___FORMAT_OK
- __attribute__((format (printf, 3, 0)))
-#endif /* __ATTRIBUTE___FORMAT_OK */
- ;
+int vsnprintf (char *str, size_t sz, FORMAT_STRING(const char *format),
+ va_list ap) PRINTFLIKE(3, 0);
#endif /* !defined(HAVE_VSNPRINTF) */
#ifndef HAVE_STRLCAT
int ndo_bflag; /* print 4 byte ASes in ASDOT notation */
int ndo_eflag; /* print ethernet header */
int ndo_fflag; /* don't translate "foreign" IP address */
- int ndo_Kflag; /* don't check TCP checksums */
+ int ndo_Kflag; /* don't check IP, TCP or UDP checksums */
int ndo_nflag; /* leave addresses as numbers */
int ndo_Nflag; /* remove domains from printed host names */
int ndo_qflag; /* quick (shorter) output */
int ndo_uflag; /* Print undecoded NFS handles */
int ndo_vflag; /* verbosity level */
int ndo_xflag; /* print packet in hex */
- int ndo_Xflag; /* print packet in hex/ascii */
- int ndo_Aflag; /* print packet only in ascii observing TAB,
+ int ndo_Xflag; /* print packet in hex/ASCII */
+ int ndo_Aflag; /* print packet only in ASCII observing TAB,
* LF, CR and SPACE as graphical chars
*/
int ndo_Hflag; /* dissect 802.11s draft mesh standard */
/* pointer to function to do regular output */
int (*ndo_printf)(netdissect_options *,
const char *fmt, ...)
-#ifdef __ATTRIBUTE___FORMAT_OK_FOR_FUNCTION_POINTERS
- __attribute__ ((format (printf, 2, 3)))
-#endif
- ;
+ PRINTFLIKE_FUNCPTR(2, 3);
/* pointer to function to output errors */
- void (*ndo_error)(netdissect_options *,
- const char *fmt, ...)
-#ifdef __ATTRIBUTE___NORETURN_OK_FOR_FUNCTION_POINTERS
- __attribute__ ((noreturn))
-#endif /* __ATTRIBUTE___NORETURN_OK_FOR_FUNCTION_POINTERS */
-#ifdef __ATTRIBUTE___FORMAT_OK_FOR_FUNCTION_POINTERS
- __attribute__ ((format (printf, 2, 3)))
-#endif /* __ATTRIBUTE___FORMAT_OK_FOR_FUNCTION_POINTERS */
- ;
+ void NORETURN_FUNCPTR (*ndo_error)(netdissect_options *,
+ const char *fmt, ...)
+ PRINTFLIKE_FUNCPTR(2, 3);
/* pointer to function to output warnings */
void (*ndo_warning)(netdissect_options *,
const char *fmt, ...)
-#ifdef __ATTRIBUTE___FORMAT_OK_FOR_FUNCTION_POINTERS
- __attribute__ ((format (printf, 2, 3)))
-#endif
- ;
+ PRINTFLIKE_FUNCPTR(2, 3);
};
#define PT_VAT 1 /* Visual Audio Tool */
* savefile header to control the size of the buffer they allocate,
* so a size of, say, 2^31-1 might not work well.
*
- * XXX - does it need to be bigger still?
+ * XXX - does it need to be bigger still? Note that, for versions of
+ * libpcap with pcap_create()/pcap_activate(), if no -s flag is specified
+ * or -s 0 is specified, we won't set the snapshot length at all, and will
+ * let libpcap choose a snapshot length; newer versions may choose a bigger
+ * value than 262144 for D-Bus, for example.
*/
#define MAXIMUM_SNAPLEN 262144
-/*
- * The default snapshot length is the maximum.
- */
-#define DEFAULT_SNAPLEN MAXIMUM_SNAPLEN
-
#define ESRC(ep) ((ep)->ether_shost)
#define EDST(ep) ((ep)->ether_dhost)
/* Bail if "var" was not captured */
#define ND_TCHECK(var) ND_TCHECK2(var, sizeof(var))
-#define ND_PRINT(STUFF) (*ndo->ndo_printf)STUFF
+#define ND_PRINT(STUFF) (ndo->ndo_printf)STUFF
#define ND_DEFAULTPRINT(ap, length) (*ndo->ndo_default_print)(ndo, ap, length)
extern void ts_print(netdissect_options *, const struct timeval *);
extern void safeputchar(netdissect_options *, const u_char);
extern void safeputs(netdissect_options *, const u_char *, const u_int);
-#ifdef LBL_ALIGN
+#if (defined(__i386__) || defined(_M_IX86) || defined(__X86__) || defined(__x86_64__) || defined(_M_X64)) || \
+ (defined(__arm__) || defined(_M_ARM) || defined(__aarch64__)) || \
+ (defined(__m68k__) && (!defined(__mc68000__) && !defined(__mc68010__))) || \
+ (defined(__ppc__) || defined(__ppc64__) || defined(_M_PPC) || defined(_ARCH_PPC) || defined(_ARCH_PPC64)) || \
+ (defined(__s390__) || defined(__s390x__) || defined(__zarch__)) || \
+ defined(__vax__)
+/*
+ * The procesor natively handles unaligned loads, so just use memcpy()
+ * and memcmp(), to enable those optimizations.
+ *
+ * XXX - are those all the x86 tests we need?
+ * XXX - do we need to worry about ARMv1 through ARMv5, which didn't
+ * support unaligned loads, and, if so, do we need to worry about all
+ * of them, or just some of them, e.g. ARMv5?
+ * XXX - are those the only 68k tests we need not to generated
+ * unaligned accesses if the target is the 68000 or 68010?
+ * XXX - are there any tests we don't need, because some definitions are for
+ * compilers that also predefine the GCC symbols?
+ * XXX - do we need to test for both 32-bit and 64-bit versions of those
+ * architectures in all cases?
+ */
+#define UNALIGNED_MEMCPY(p, q, l) memcpy((p), (q), (l))
+#define UNALIGNED_MEMCMP(p, q, l) memcmp((p), (q), (l))
+#else
/*
* The processor doesn't natively handle unaligned loads,
* and the compiler might "helpfully" optimize memcpy()
extern int unaligned_memcmp(const void *, const void *, size_t);
#define UNALIGNED_MEMCPY(p, q, l) unaligned_memcpy((p), (q), (l))
#define UNALIGNED_MEMCMP(p, q, l) unaligned_memcmp((p), (q), (l))
-#else
-/*
- * The procesor natively handles unaligned loads, so just use memcpy()
- * and memcmp(), to enable those optimizations.
- */
-#define UNALIGNED_MEMCPY(p, q, l) memcpy((p), (q), (l))
-#define UNALIGNED_MEMCMP(p, q, l) memcmp((p), (q), (l))
#endif
#define PLURAL_SUFFIX(n) \
extern u_int ieee802_15_4_if_print IF_PRINTER_ARGS;
extern u_int ipfc_if_print IF_PRINTER_ARGS;
extern u_int ipnet_if_print IF_PRINTER_ARGS;
-extern u_int juniper_atm1_print IF_PRINTER_ARGS;
-extern u_int juniper_atm2_print IF_PRINTER_ARGS;
-extern u_int juniper_chdlc_print IF_PRINTER_ARGS;
-extern u_int juniper_es_print IF_PRINTER_ARGS;
-extern u_int juniper_ether_print IF_PRINTER_ARGS;
-extern u_int juniper_frelay_print IF_PRINTER_ARGS;
-extern u_int juniper_ggsn_print IF_PRINTER_ARGS;
-extern u_int juniper_mfr_print IF_PRINTER_ARGS;
-extern u_int juniper_mlfr_print IF_PRINTER_ARGS;
-extern u_int juniper_mlppp_print IF_PRINTER_ARGS;
-extern u_int juniper_monitor_print IF_PRINTER_ARGS;
-extern u_int juniper_ppp_print IF_PRINTER_ARGS;
-extern u_int juniper_pppoe_atm_print IF_PRINTER_ARGS;
-extern u_int juniper_pppoe_print IF_PRINTER_ARGS;
-extern u_int juniper_services_print IF_PRINTER_ARGS;
+extern u_int juniper_atm1_if_print IF_PRINTER_ARGS;
+extern u_int juniper_atm2_if_print IF_PRINTER_ARGS;
+extern u_int juniper_chdlc_if_print IF_PRINTER_ARGS;
+extern u_int juniper_es_if_print IF_PRINTER_ARGS;
+extern u_int juniper_ether_if_print IF_PRINTER_ARGS;
+extern u_int juniper_frelay_if_print IF_PRINTER_ARGS;
+extern u_int juniper_ggsn_if_print IF_PRINTER_ARGS;
+extern u_int juniper_mfr_if_print IF_PRINTER_ARGS;
+extern u_int juniper_mlfr_if_print IF_PRINTER_ARGS;
+extern u_int juniper_mlppp_if_print IF_PRINTER_ARGS;
+extern u_int juniper_monitor_if_print IF_PRINTER_ARGS;
+extern u_int juniper_ppp_if_print IF_PRINTER_ARGS;
+extern u_int juniper_pppoe_atm_if_print IF_PRINTER_ARGS;
+extern u_int juniper_pppoe_if_print IF_PRINTER_ARGS;
+extern u_int juniper_services_if_print IF_PRINTER_ARGS;
extern u_int lane_if_print IF_PRINTER_ARGS;
extern u_int ltalk_if_print IF_PRINTER_ARGS;
extern u_int mfr_if_print IF_PRINTER_ARGS;
extern u_int sunatm_if_print IF_PRINTER_ARGS;
extern u_int symantec_if_print IF_PRINTER_ARGS;
extern u_int token_if_print IF_PRINTER_ARGS;
-extern u_int usb_linux_48_byte_print IF_PRINTER_ARGS;
-extern u_int usb_linux_64_byte_print IF_PRINTER_ARGS;
+extern u_int usb_linux_48_byte_if_print IF_PRINTER_ARGS;
+extern u_int usb_linux_64_byte_if_print IF_PRINTER_ARGS;
/*
* Structure passed to some printers to allow them to print
extern void eap_print(netdissect_options *, const u_char *, u_int);
extern void egp_print(netdissect_options *, const u_char *, u_int);
extern void eigrp_print(netdissect_options *, const u_char *, u_int);
-extern int esp_print(netdissect_options *, const u_char *, const int, const u_char *, int *, int *);
+extern int esp_print(netdissect_options *, const u_char *, const int, const u_char *, u_int *, u_int *);
extern u_int ether_print(netdissect_options *, const u_char *, u_int, u_int, void (*)(netdissect_options *, const u_char *), const u_char *);
extern int ethertype_print(netdissect_options *, u_short, const u_char *, u_int, u_int, const struct lladdr_info *, const struct lladdr_info *);
extern u_int fddi_print(netdissect_options *, const u_char *, u_int, u_int);
extern void ipx_print(netdissect_options *, const u_char *, u_int);
extern void isakmp_print(netdissect_options *, const u_char *, u_int, const u_char *);
extern void isakmp_rfc3948_print(netdissect_options *, const u_char *, u_int, const u_char *);
-extern void isoclns_print(netdissect_options *, const u_char *, u_int, u_int);
+extern void isoclns_print(netdissect_options *, const u_char *, u_int);
extern void krb_print(netdissect_options *, const u_char *);
extern void l2tp_print(netdissect_options *, const u_char *, u_int);
extern void lane_print(netdissect_options *, const u_char *, u_int, u_int);
extern void nbt_udp138_print(netdissect_options *, const u_char *, int);
extern void netbeui_print(netdissect_options *, u_short, const u_char *, int);
extern void nfsreply_print(netdissect_options *, const u_char *, u_int, const u_char *);
-extern void nfsreply_print_noaddr(netdissect_options *, const u_char *, u_int, const u_char *);
-extern void nfsreq_print_noaddr(netdissect_options *, const u_char *, u_int, const u_char *);
+extern void nfsreply_noaddr_print(netdissect_options *, const u_char *, u_int, const u_char *);
+extern void nfsreq_noaddr_print(netdissect_options *, const u_char *, u_int, const u_char *);
extern const u_char * ns_nprint (netdissect_options *, register const u_char *, register const u_char *);
-extern void ns_print(netdissect_options *, const u_char *, u_int, int);
+extern void domain_print(netdissect_options *, const u_char *, u_int, int);
extern void nsh_print(netdissect_options *ndo, const u_char *bp, u_int len);
extern void ntp_print(netdissect_options *, const u_char *, u_int);
extern void oam_print(netdissect_options *, const u_char *, u_int, u_int);
extern void rsvp_print(netdissect_options *, const u_char *, u_int);
extern int rt6_print(netdissect_options *, const u_char *, const u_char *);
extern void rtsp_print(netdissect_options *, const u_char *, u_int);
-extern void rx_print(netdissect_options *, register const u_char *, int, int, int, const u_char *);
+extern void rx_print(netdissect_options *, register const u_char *, u_int, u_int, u_int, const u_char *);
extern void sctp_print(netdissect_options *, const u_char *, const u_char *, u_int);
extern void sflow_print(netdissect_options *, const u_char *, u_int);
extern void sip_print(netdissect_options *, const u_char *, u_int);
extern int snap_print(netdissect_options *, const u_char *, u_int, u_int, const struct lladdr_info *, const struct lladdr_info *, u_int);
extern void snmp_print(netdissect_options *, const u_char *, u_int);
extern void stp_print(netdissect_options *, const u_char *, u_int);
-extern void sunrpcrequest_print(netdissect_options *, const u_char *, u_int, const u_char *);
+extern void sunrpc_print(netdissect_options *, const u_char *, u_int, const u_char *);
extern void syslog_print(netdissect_options *, const u_char *, u_int);
extern void tcp_print(netdissect_options *, const u_char *, u_int, const u_char *, int);
extern void telnet_print(netdissect_options *, const u_char *, u_int);
extern void wb_print(netdissect_options *, const void *, u_int);
extern void zephyr_print(netdissect_options *, const u_char *, int);
extern void zmtp1_print(netdissect_options *, const u_char *, u_int);
-extern void zmtp1_print_datagram(netdissect_options *, const u_char *, const u_int);
+extern void zmtp1_datagram_print(netdissect_options *, const u_char *, const u_int);
/* checksum routines */
extern void init_checksum(void);
projects / tcpdump / blobdiff