* and address to string conversion routines
*/
-#define NETDISSECT_REWORKED
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
-#include <tcpdump-stdinc.h>
+#include <netdissect-stdinc.h>
#ifdef USE_ETHER_NTOHOST
#ifdef HAVE_NETINET_IF_ETHER_H
#include <string.h>
#include <stdlib.h>
-#include "interface.h"
+#include "netdissect.h"
#include "addrtoname.h"
+#include "addrtostr.h"
+#include "ethertype.h"
#include "llc.h"
#include "setsignal.h"
#include "extract.h"
/*
* hash tables for whatever-to-name translations
*
- * XXX there has to be error checks against strdup(3) failure
+ * ndo_error() called on strdup(3) failure
*/
#define HASHNAMESIZE 4096
static struct hnamemem dnaddrtable[HASHNAMESIZE];
static struct hnamemem ipxsaptable[HASHNAMESIZE];
-#if defined(INET6) && defined(WIN32)
+#ifdef _WIN32
/*
* fake gethostbyaddr for Win2k/XP
* gethostbyaddr() returns incorrect value when AF_INET6 is passed
}
}
#define gethostbyaddr win32_gethostbyaddr
-#endif /* INET6 & WIN32 */
+#endif /* _WIN32 */
-#ifdef INET6
struct h6namemem {
struct in6_addr addr;
char *name;
};
static struct h6namemem h6nametable[HASHNAMESIZE];
-#endif /* INET6 */
struct enamemem {
u_short e_addr0;
*
* NOTE: ap is *NOT* necessarily part of the packet data (not even if
* this is being called with the "ipaddr_string()" macro), so you
- * *CANNOT* use the TCHECK{2}/TTEST{2} macros on it. Furthermore,
+ * *CANNOT* use the ND_TCHECK{2}/ND_TTEST{2} macros on it. Furthermore,
* even in cases where it *is* part of the packet data, the caller
* would still have to check for a null return value, even if it's
* just printing the return value with "%s" - not all versions of
{
register struct hostent *hp;
uint32_t addr;
- static struct hnamemem *p; /* static for longjmp() */
+ struct hnamemem *p;
memcpy(&addr, ap, sizeof(addr));
p = &hnametable[addr & (HASHNAMESIZE-1)];
return (p->name);
}
p->addr = addr;
- p->nxt = newhnamemem();
+ p->nxt = newhnamemem(ndo);
/*
* Print names unless:
char *dotp;
p->name = strdup(hp->h_name);
+ if (p->name == NULL)
+ (*ndo->ndo_error)(ndo,
+ "getname: strdup(hp->h_name)");
if (ndo->ndo_Nflag) {
/* Remove domain qualifications */
dotp = strchr(p->name, '.');
}
}
p->name = strdup(intoa(addr));
+ if (p->name == NULL)
+ (*ndo->ndo_error)(ndo, "getname: strdup(intoa(addr))");
return (p->name);
}
-#ifdef INET6
/*
* Return a name for the IP6 address pointed to by ap. This address
* is assumed to be in network byte order.
uint16_t d;
} addra;
} addr;
- static struct h6namemem *p; /* static for longjmp() */
+ struct h6namemem *p;
register const char *cp;
char ntop_buf[INET6_ADDRSTRLEN];
return (p->name);
}
p->addr = addr.addr;
- p->nxt = newh6namemem();
+ p->nxt = newh6namemem(ndo);
/*
* Do not print names if -n was given.
char *dotp;
p->name = strdup(hp->h_name);
+ if (p->name == NULL)
+ (*ndo->ndo_error)(ndo,
+ "getname6: strdup(hp->h_name)");
if (ndo->ndo_Nflag) {
/* Remove domain qualifications */
dotp = strchr(p->name, '.');
return (p->name);
}
}
- cp = inet_ntop(AF_INET6, &addr, ntop_buf, sizeof(ntop_buf));
+ cp = addrtostr6(ap, ntop_buf, sizeof(ntop_buf));
p->name = strdup(cp);
+ if (p->name == NULL)
+ (*ndo->ndo_error)(ndo, "getname6: strdup(cp)");
return (p->name);
}
-#endif /* INET6 */
static const char hex[] = "0123456789abcdef";
/* Find the hash node that corresponds the ether address 'ep' */
static inline struct enamemem *
-lookup_emem(const u_char *ep)
+lookup_emem(netdissect_options *ndo, const u_char *ep)
{
register u_int i, j, k;
struct enamemem *tp;
tp->e_addr2 = k;
tp->e_nxt = (struct enamemem *)calloc(1, sizeof(*tp));
if (tp->e_nxt == NULL)
- error("lookup_emem: calloc");
+ (*ndo->ndo_error)(ndo, "lookup_emem: calloc");
return tp;
}
*/
static inline struct enamemem *
-lookup_bytestring(register const u_char *bs, const unsigned int nlen)
+lookup_bytestring(netdissect_options *ndo, register const u_char *bs,
+ const unsigned int nlen)
{
struct enamemem *tp;
register u_int i, j, k;
tp->e_bs = (u_char *) calloc(1, nlen + 1);
if (tp->e_bs == NULL)
- error("lookup_bytestring: calloc");
+ (*ndo->ndo_error)(ndo, "lookup_bytestring: calloc");
memcpy(tp->e_bs, bs, nlen);
tp->e_nxt = (struct enamemem *)calloc(1, sizeof(*tp));
if (tp->e_nxt == NULL)
- error("lookup_bytestring: calloc");
+ (*ndo->ndo_error)(ndo, "lookup_bytestring: calloc");
return tp;
}
/* Find the hash node that corresponds the NSAP 'nsap' */
static inline struct enamemem *
-lookup_nsap(register const u_char *nsap)
+lookup_nsap(netdissect_options *ndo, register const u_char *nsap,
+ register u_int nsap_length)
{
register u_int i, j, k;
- unsigned int nlen = *nsap;
struct enamemem *tp;
- const u_char *ensap = nsap + nlen - 6;
+ const u_char *ensap;
- if (nlen > 6) {
+ if (nsap_length > 6) {
+ ensap = nsap + nsap_length - 6;
k = (ensap[0] << 8) | ensap[1];
j = (ensap[2] << 8) | ensap[3];
i = (ensap[4] << 8) | ensap[5];
if (tp->e_addr0 == i &&
tp->e_addr1 == j &&
tp->e_addr2 == k &&
- tp->e_nsap[0] == nlen &&
+ tp->e_nsap[0] == nsap_length &&
memcmp((const char *)&(nsap[1]),
- (char *)&(tp->e_nsap[1]), nlen) == 0)
+ (char *)&(tp->e_nsap[1]), nsap_length) == 0)
return tp;
else
tp = tp->e_nxt;
tp->e_addr0 = i;
tp->e_addr1 = j;
tp->e_addr2 = k;
- tp->e_nsap = (u_char *)malloc(nlen + 1);
+ tp->e_nsap = (u_char *)malloc(nsap_length + 1);
if (tp->e_nsap == NULL)
- error("lookup_nsap: malloc");
- memcpy((char *)tp->e_nsap, (const char *)nsap, nlen + 1);
+ (*ndo->ndo_error)(ndo, "lookup_nsap: malloc");
+ tp->e_nsap[0] = (u_char)nsap_length; /* guaranteed < ISONSAP_MAX_LENGTH */
+ memcpy((char *)&tp->e_nsap[1], (const char *)nsap, nsap_length);
tp->e_nxt = (struct enamemem *)calloc(1, sizeof(*tp));
if (tp->e_nxt == NULL)
- error("lookup_nsap: calloc");
+ (*ndo->ndo_error)(ndo, "lookup_nsap: calloc");
return tp;
}
/* Find the hash node that corresponds the protoid 'pi'. */
static inline struct protoidmem *
-lookup_protoid(const u_char *pi)
+lookup_protoid(netdissect_options *ndo, const u_char *pi)
{
register u_int i, j;
struct protoidmem *tp;
tp->p_proto = j;
tp->p_nxt = (struct protoidmem *)calloc(1, sizeof(*tp));
if (tp->p_nxt == NULL)
- error("lookup_protoid: calloc");
+ (*ndo->ndo_error)(ndo, "lookup_protoid: calloc");
return tp;
}
int oui;
char buf[BUFSIZE];
- tp = lookup_emem(ep);
+ tp = lookup_emem(ndo, ep);
if (tp->e_name)
return (tp->e_name);
#ifdef USE_ETHER_NTOHOST
if (!ndo->ndo_nflag) {
char buf2[BUFSIZE];
- /*
- * We don't cast it to "const struct ether_addr *"
- * because some systems fail to declare the second
- * argument as a "const" pointer, even though they
- * don't modify what it points to.
- */
- if (ether_ntohost(buf2, (struct ether_addr *)ep) == 0) {
+ if (ether_ntohost(buf2, (const struct ether_addr *)ep) == 0) {
tp->e_name = strdup(buf2);
+ if (tp->e_name == NULL)
+ (*ndo->ndo_error)(ndo,
+ "etheraddr_string: strdup(buf2)");
return (tp->e_name);
}
}
} else
*cp = '\0';
tp->e_name = strdup(buf);
+ if (tp->e_name == NULL)
+ (*ndo->ndo_error)(ndo, "etheraddr_string: strdup(buf)");
return (tp->e_name);
}
const char *
-le64addr_string(const u_char *ep)
+le64addr_string(netdissect_options *ndo, const u_char *ep)
{
const unsigned int len = 8;
register u_int i;
register struct enamemem *tp;
char buf[BUFSIZE];
- tp = lookup_bytestring(ep, len);
+ tp = lookup_bytestring(ndo, ep, len);
if (tp->e_name)
return (tp->e_name);
*cp = '\0';
tp->e_name = strdup(buf);
+ if (tp->e_name == NULL)
+ (*ndo->ndo_error)(ndo, "le64addr_string: strdup(buf)");
return (tp->e_name);
}
const char *
-linkaddr_string(netdissect_options *ndo, const u_char *ep, const unsigned int type, const unsigned int len)
+linkaddr_string(netdissect_options *ndo, const u_char *ep,
+ const unsigned int type, const unsigned int len)
{
register u_int i;
register char *cp;
if (type == LINKADDR_FRELAY)
return (q922_string(ndo, ep, len));
- tp = lookup_bytestring(ep, len);
+ tp = lookup_bytestring(ndo, ep, len);
if (tp->e_name)
return (tp->e_name);
tp->e_name = cp = (char *)malloc(len*3);
if (tp->e_name == NULL)
- error("linkaddr_string: malloc");
+ (*ndo->ndo_error)(ndo, "linkaddr_string: malloc");
*cp++ = hex[*ep >> 4];
*cp++ = hex[*ep++ & 0xf];
for (i = len-1; i > 0 ; --i) {
}
const char *
-etherproto_string(u_short port)
+etherproto_string(netdissect_options *ndo, u_short port)
{
register char *cp;
register struct hnamemem *tp;
return (tp->name);
tp->addr = i;
- tp->nxt = newhnamemem();
+ tp->nxt = newhnamemem(ndo);
cp = buf;
NTOHS(port);
*cp++ = hex[port & 0xf];
*cp++ = '\0';
tp->name = strdup(buf);
+ if (tp->name == NULL)
+ (*ndo->ndo_error)(ndo, "etherproto_string: strdup(buf)");
return (tp->name);
}
const char *
-protoid_string(register const u_char *pi)
+protoid_string(netdissect_options *ndo, register const u_char *pi)
{
register u_int i, j;
register char *cp;
register struct protoidmem *tp;
char buf[sizeof("00:00:00:00:00")];
- tp = lookup_protoid(pi);
+ tp = lookup_protoid(ndo, pi);
if (tp->p_name)
return tp->p_name;
}
*cp = '\0';
tp->p_name = strdup(buf);
+ if (tp->p_name == NULL)
+ (*ndo->ndo_error)(ndo, "protoid_string: strdup(buf)");
return (tp->p_name);
}
#define ISONSAP_MAX_LENGTH 20
const char *
-isonsap_string(const u_char *nsap, register u_int nsap_length)
+isonsap_string(netdissect_options *ndo, const u_char *nsap,
+ register u_int nsap_length)
{
register u_int nsap_idx;
register char *cp;
if (nsap_length < 1 || nsap_length > ISONSAP_MAX_LENGTH)
return ("isonsap_string: illegal length");
- tp = lookup_nsap(nsap);
+ tp = lookup_nsap(ndo, nsap, nsap_length);
if (tp->e_name)
return tp->e_name;
tp->e_name = cp = (char *)malloc(sizeof("xx.xxxx.xxxx.xxxx.xxxx.xxxx.xxxx.xxxx.xxxx.xxxx.xx"));
if (cp == NULL)
- error("isonsap_string: malloc");
+ (*ndo->ndo_error)(ndo, "isonsap_string: malloc");
for (nsap_idx = 0; nsap_idx < nsap_length; nsap_idx++) {
*cp++ = hex[*nsap >> 4];
}
const char *
-tcpport_string(u_short port)
+tcpport_string(netdissect_options *ndo, u_short port)
{
register struct hnamemem *tp;
register uint32_t i = port;
return (tp->name);
tp->addr = i;
- tp->nxt = newhnamemem();
+ tp->nxt = newhnamemem(ndo);
(void)snprintf(buf, sizeof(buf), "%u", i);
tp->name = strdup(buf);
+ if (tp->name == NULL)
+ (*ndo->ndo_error)(ndo, "tcpport_string: strdup(buf)");
return (tp->name);
}
const char *
-udpport_string(register u_short port)
+udpport_string(netdissect_options *ndo, register u_short port)
{
register struct hnamemem *tp;
register uint32_t i = port;
return (tp->name);
tp->addr = i;
- tp->nxt = newhnamemem();
+ tp->nxt = newhnamemem(ndo);
(void)snprintf(buf, sizeof(buf), "%u", i);
tp->name = strdup(buf);
+ if (tp->name == NULL)
+ (*ndo->ndo_error)(ndo, "udpport_string: strdup(buf)");
return (tp->name);
}
const char *
-ipxsap_string(u_short port)
+ipxsap_string(netdissect_options *ndo, u_short port)
{
register char *cp;
register struct hnamemem *tp;
return (tp->name);
tp->addr = i;
- tp->nxt = newhnamemem();
+ tp->nxt = newhnamemem(ndo);
cp = buf;
NTOHS(port);
*cp++ = hex[port & 0xf];
*cp++ = '\0';
tp->name = strdup(buf);
+ if (tp->name == NULL)
+ (*ndo->ndo_error)(ndo, "ipxsap_string: strdup(buf)");
return (tp->name);
}
table->name = strdup(buf);
} else
table->name = strdup(sv->s_name);
+ if (table->name == NULL)
+ (*ndo->ndo_error)(ndo, "init_servarray: strdup");
+
table->addr = port;
- table->nxt = newhnamemem();
+ table->nxt = newhnamemem(ndo);
}
endservent();
}
-/* in libpcap.a (nametoaddr.c) */
-#if defined(WIN32) && !defined(USE_STATIC_LIBPCAP)
-extern __declspec(dllimport)
-#else
-extern
-#endif
-const struct eproto {
+static const struct eproto {
const char *s;
u_short p;
-} eproto_db[];
+} eproto_db[] = {
+ { "pup", ETHERTYPE_PUP },
+ { "xns", ETHERTYPE_NS },
+ { "ip", ETHERTYPE_IP },
+ { "ip6", ETHERTYPE_IPV6 },
+ { "arp", ETHERTYPE_ARP },
+ { "rarp", ETHERTYPE_REVARP },
+ { "sprite", ETHERTYPE_SPRITE },
+ { "mopdl", ETHERTYPE_MOPDL },
+ { "moprc", ETHERTYPE_MOPRC },
+ { "decnet", ETHERTYPE_DN },
+ { "lat", ETHERTYPE_LAT },
+ { "sca", ETHERTYPE_SCA },
+ { "lanbridge", ETHERTYPE_LANBRIDGE },
+ { "vexp", ETHERTYPE_VEXP },
+ { "vprod", ETHERTYPE_VPROD },
+ { "atalk", ETHERTYPE_ATALK },
+ { "atalkarp", ETHERTYPE_AARP },
+ { "loopback", ETHERTYPE_LOOPBACK },
+ { "decdts", ETHERTYPE_DECDTS },
+ { "decdns", ETHERTYPE_DECDNS },
+ { (char *)0, 0 }
+};
static void
-init_eprotoarray(void)
+init_eprotoarray(netdissect_options *ndo)
{
register int i;
register struct hnamemem *table;
table = table->nxt;
table->name = eproto_db[i].s;
table->addr = htons(eproto_db[i].p);
- table->nxt = newhnamemem();
+ table->nxt = newhnamemem(ndo);
}
}
* types.
*/
static void
-init_protoidarray(void)
+init_protoidarray(netdissect_options *ndo)
{
register int i;
register struct protoidmem *tp;
u_short etype = htons(eproto_db[i].p);
memcpy((char *)&protoid[3], (char *)&etype, 2);
- tp = lookup_protoid(protoid);
+ tp = lookup_protoid(ndo, protoid);
tp->p_name = strdup(eproto_db[i].s);
+ if (tp->p_name == NULL)
+ (*ndo->ndo_error)(ndo,
+ "init_protoidarray: strdup(eproto_db[i].s)");
}
/* Hardwire some SNAP proto ID names */
for (pl = protoidlist; pl->name != NULL; ++pl) {
- tp = lookup_protoid(pl->protoid);
+ tp = lookup_protoid(ndo, pl->protoid);
/* Don't override existing name */
if (tp->p_name != NULL)
continue;
* translation, so we just pcap_next_etherent as a convenience.
*/
static void
-init_etherarray(void)
+init_etherarray(netdissect_options *ndo)
{
register const struct etherlist *el;
register struct enamemem *tp;
fp = fopen(PCAP_ETHERS_FILE, "r");
if (fp != NULL) {
while ((ep = pcap_next_etherent(fp)) != NULL) {
- tp = lookup_emem(ep->addr);
+ tp = lookup_emem(ndo, ep->addr);
tp->e_name = strdup(ep->name);
+ if (tp->e_name == NULL)
+ (*ndo->ndo_error)(ndo,
+ "init_etherarray: strdup(ep->addr)");
}
(void)fclose(fp);
}
/* Hardwire some ethernet names */
for (el = etherlist; el->name != NULL; ++el) {
- tp = lookup_emem(el->addr);
+ tp = lookup_emem(ndo, el->addr);
/* Don't override existing name */
if (tp->e_name != NULL)
continue;
#ifdef USE_ETHER_NTOHOST
/*
* Use YP/NIS version of name if available.
- *
- * We don't cast it to "const struct ether_addr *"
- * because some systems don't modify the Ethernet
- * address but fail to declare the second argument
- * as a "const" pointer.
*/
- if (ether_ntohost(name, (struct ether_addr *)el->addr) == 0) {
+ if (ether_ntohost(name, (const struct ether_addr *)el->addr) == 0) {
tp->e_name = strdup(name);
+ if (tp->e_name == NULL)
+ (*ndo->ndo_error)(ndo,
+ "init_etherarray: strdup(name)");
continue;
}
#endif
};
static void
-init_ipxsaparray(void)
+init_ipxsaparray(netdissect_options *ndo)
{
register int i;
register struct hnamemem *table;
table = table->nxt;
table->name = ipxsap_db[i].s;
table->addr = htons(ipxsap_db[i].v);
- table->nxt = newhnamemem();
+ table->nxt = newhnamemem(ndo);
}
}
*/
return;
- init_etherarray();
+ init_etherarray(ndo);
init_servarray(ndo);
- init_eprotoarray();
- init_protoidarray();
- init_ipxsaparray();
+ init_eprotoarray(ndo);
+ init_protoidarray(ndo);
+ init_ipxsaparray(ndo);
}
const char *
{
register struct hnamemem *tp;
- for (tp = &dnaddrtable[dnaddr & (HASHNAMESIZE-1)]; tp->nxt != 0;
+ for (tp = &dnaddrtable[dnaddr & (HASHNAMESIZE-1)]; tp->nxt != NULL;
tp = tp->nxt)
if (tp->addr == dnaddr)
return (tp->name);
tp->addr = dnaddr;
- tp->nxt = newhnamemem();
+ tp->nxt = newhnamemem(ndo);
if (ndo->ndo_nflag)
- tp->name = dnnum_string(dnaddr);
+ tp->name = dnnum_string(ndo, dnaddr);
else
- tp->name = dnname_string(dnaddr);
+ tp->name = dnname_string(ndo, dnaddr);
return(tp->name);
}
/* Return a zero'ed hnamemem struct and cuts down on calloc() overhead */
struct hnamemem *
-newhnamemem(void)
+newhnamemem(netdissect_options *ndo)
{
register struct hnamemem *p;
static struct hnamemem *ptr = NULL;
num = 64;
ptr = (struct hnamemem *)calloc(num, sizeof (*ptr));
if (ptr == NULL)
- error("newhnamemem: calloc");
+ (*ndo->ndo_error)(ndo, "newhnamemem: calloc");
}
--num;
p = ptr++;
return (p);
}
-#ifdef INET6
/* Return a zero'ed h6namemem struct and cuts down on calloc() overhead */
struct h6namemem *
-newh6namemem(void)
+newh6namemem(netdissect_options *ndo)
{
register struct h6namemem *p;
static struct h6namemem *ptr = NULL;
num = 64;
ptr = (struct h6namemem *)calloc(num, sizeof (*ptr));
if (ptr == NULL)
- error("newh6namemem: calloc");
+ (*ndo->ndo_error)(ndo, "newh6namemem: calloc");
}
--num;
p = ptr++;
return (p);
}
-#endif /* INET6 */
/* Represent TCI part of the 802.1Q 4-octet tag as text. */
const char *
projects / tcpdump / blobdiff