X-Git-Url: https://git.tcpdump.org/tcpdump/blobdiff_plain/0d9efb959673c3867e5f916793c83d3f08a2cf22..cc2d4cbd8ca150504127f375d8b51b194958d95b:/addrtoname.c

diff --git a/addrtoname.c b/addrtoname.c
index 55937929..1c80c39f 100644
--- a/addrtoname.c
+++ b/addrtoname.c
@@ -125,7 +125,7 @@
 /*
  * hash tables for whatever-to-name translations
  *
- * ndo_error() called on strdup(3) failure
+ * ndo_error() called on strdup(3) failure with S_ERR_ND_MEM_ALLOC status
  */
 
 #define HASHNAMESIZE 4096
@@ -172,7 +172,7 @@ win32_gethostbyaddr(const char *addr, int len, int type)
 		    hname, sizeof(hname), NULL, 0, 0)) {
 			return NULL;
 		} else {
-			strcpy(host.h_name, hname);
+			strlcpy(host.h_name, hname, NI_MAXHOST);
 			return &host;
 		}
 		break;
@@ -242,13 +242,13 @@ intoa(uint32_t addr)
 	n = 4;
 	do {
 		byte = addr & 0xff;
-		*--cp = byte % 10 + '0';
+		*--cp = (char)(byte % 10) + '0';
 		byte /= 10;
 		if (byte > 0) {
-			*--cp = byte % 10 + '0';
+			*--cp = (char)(byte % 10) + '0';
 			byte /= 10;
 			if (byte > 0)
-				*--cp = byte + '0';
+				*--cp = (char)byte + '0';
 		}
 		*--cp = '.';
 		addr >>= 8;
@@ -269,7 +269,7 @@ extern cap_channel_t *capdns;
  *
  * 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 ND_TCHECK{2}/ND_TTEST{2} macros on it.  Furthermore,
+ * *CANNOT* use the ND_TCHECK_* or ND_TTEST_* 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
@@ -283,7 +283,7 @@ extern cap_channel_t *capdns;
  * also needs to check whether they're present in the packet buffer.
  */
 const char *
-getname(netdissect_options *ndo, const u_char *ap)
+ipaddr_string(netdissect_options *ndo, const u_char *ap)
 {
 	struct hostent *hp;
 	uint32_t addr;
@@ -319,8 +319,8 @@ getname(netdissect_options *ndo, const u_char *ap)
 
 			p->name = strdup(hp->h_name);
 			if (p->name == NULL)
-				(*ndo->ndo_error)(ndo,
-						  "getname: strdup(hp->h_name)");
+				(*ndo->ndo_error)(ndo, S_ERR_ND_MEM_ALLOC,
+					"ipaddr_string: strdup(hp->h_name)");
 			if (ndo->ndo_Nflag) {
 				/* Remove domain qualifications */
 				dotp = strchr(p->name, '.');
@@ -332,7 +332,8 @@ getname(netdissect_options *ndo, const u_char *ap)
 	}
 	p->name = strdup(intoa(addr));
 	if (p->name == NULL)
-		(*ndo->ndo_error)(ndo, "getname: strdup(intoa(addr))");
+		(*ndo->ndo_error)(ndo, S_ERR_ND_MEM_ALLOC,
+				  "ipaddr_string: strdup(intoa(addr))");
 	return (p->name);
 }
 
@@ -341,7 +342,7 @@ getname(netdissect_options *ndo, const u_char *ap)
  * is assumed to be in network byte order.
  */
 const char *
-getname6(netdissect_options *ndo, const u_char *ap)
+ip6addr_string(netdissect_options *ndo, const u_char *ap)
 {
 	struct hostent *hp;
 	union {
@@ -381,8 +382,8 @@ getname6(netdissect_options *ndo, const u_char *ap)
 
 			p->name = strdup(hp->h_name);
 			if (p->name == NULL)
-				(*ndo->ndo_error)(ndo,
-						  "getname6: strdup(hp->h_name)");
+				(*ndo->ndo_error)(ndo, S_ERR_ND_MEM_ALLOC,
+					"ip6addr_string: strdup(hp->h_name)");
 			if (ndo->ndo_Nflag) {
 				/* Remove domain qualifications */
 				dotp = strchr(p->name, '.');
@@ -395,7 +396,8 @@ getname6(netdissect_options *ndo, const u_char *ap)
 	cp = addrtostr6(ap, ntop_buf, sizeof(ntop_buf));
 	p->name = strdup(cp);
 	if (p->name == NULL)
-		(*ndo->ndo_error)(ndo, "getname6: strdup(cp)");
+		(*ndo->ndo_error)(ndo, S_ERR_ND_MEM_ALLOC,
+				  "ip6addr_string: strdup(cp)");
 	return (p->name);
 }
 
@@ -406,7 +408,7 @@ static const char hex[16] = {
 
 /* Find the hash node that corresponds the ether address 'ep' */
 
-static inline struct enamemem *
+static struct enamemem *
 lookup_emem(netdissect_options *ndo, const u_char *ep)
 {
 	u_int i, j, k;
@@ -424,12 +426,12 @@ lookup_emem(netdissect_options *ndo, const u_char *ep)
 			return tp;
 		else
 			tp = tp->e_nxt;
-	tp->e_addr0 = i;
-	tp->e_addr1 = j;
-	tp->e_addr2 = k;
+	tp->e_addr0 = (u_short)i;
+	tp->e_addr1 = (u_short)j;
+	tp->e_addr2 = (u_short)k;
 	tp->e_nxt = (struct enamemem *)calloc(1, sizeof(*tp));
 	if (tp->e_nxt == NULL)
-		(*ndo->ndo_error)(ndo, "lookup_emem: calloc");
+		(*ndo->ndo_error)(ndo, S_ERR_ND_MEM_ALLOC, "lookup_emem: calloc");
 
 	return tp;
 }
@@ -439,7 +441,7 @@ lookup_emem(netdissect_options *ndo, const u_char *ep)
  * with length 'nlen'
  */
 
-static inline struct bsnamemem *
+static struct bsnamemem *
 lookup_bytestring(netdissect_options *ndo, const u_char *bs,
 		  const unsigned int nlen)
 {
@@ -468,26 +470,28 @@ lookup_bytestring(netdissect_options *ndo, const u_char *bs,
 		else
 			tp = tp->bs_nxt;
 
-	tp->bs_addr0 = i;
-	tp->bs_addr1 = j;
-	tp->bs_addr2 = k;
+	tp->bs_addr0 = (u_short)i;
+	tp->bs_addr1 = (u_short)j;
+	tp->bs_addr2 = (u_short)k;
 
 	tp->bs_bytes = (u_char *) calloc(1, nlen);
 	if (tp->bs_bytes == NULL)
-		(*ndo->ndo_error)(ndo, "lookup_bytestring: calloc");
+		(*ndo->ndo_error)(ndo, S_ERR_ND_MEM_ALLOC,
+				  "lookup_bytestring: calloc");
 
 	memcpy(tp->bs_bytes, bs, nlen);
 	tp->bs_nbytes = nlen;
 	tp->bs_nxt = (struct bsnamemem *)calloc(1, sizeof(*tp));
 	if (tp->bs_nxt == NULL)
-		(*ndo->ndo_error)(ndo, "lookup_bytestring: calloc");
+		(*ndo->ndo_error)(ndo, S_ERR_ND_MEM_ALLOC,
+				  "lookup_bytestring: calloc");
 
 	return tp;
 }
 
 /* Find the hash node that corresponds the NSAP 'nsap' */
 
-static inline struct enamemem *
+static struct enamemem *
 lookup_nsap(netdissect_options *ndo, const u_char *nsap,
 	    u_int nsap_length)
 {
@@ -515,24 +519,24 @@ lookup_nsap(netdissect_options *ndo, const u_char *nsap,
 			return tp;
 		else
 			tp = tp->e_nxt;
-	tp->e_addr0 = i;
-	tp->e_addr1 = j;
-	tp->e_addr2 = k;
+	tp->e_addr0 = (u_short)i;
+	tp->e_addr1 = (u_short)j;
+	tp->e_addr2 = (u_short)k;
 	tp->e_nsap = (u_char *)malloc(nsap_length + 1);
 	if (tp->e_nsap == NULL)
-		(*ndo->ndo_error)(ndo, "lookup_nsap: malloc");
+		(*ndo->ndo_error)(ndo, S_ERR_ND_MEM_ALLOC, "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)
-		(*ndo->ndo_error)(ndo, "lookup_nsap: calloc");
+		(*ndo->ndo_error)(ndo, S_ERR_ND_MEM_ALLOC, "lookup_nsap: calloc");
 
 	return tp;
 }
 
 /* Find the hash node that corresponds the protoid 'pi'. */
 
-static inline struct protoidmem *
+static struct protoidmem *
 lookup_protoid(netdissect_options *ndo, const u_char *pi)
 {
 	u_int i, j;
@@ -550,16 +554,16 @@ lookup_protoid(netdissect_options *ndo, const u_char *pi)
 		else
 			tp = tp->p_nxt;
 	tp->p_oui = i;
-	tp->p_proto = j;
+	tp->p_proto = (u_short)j;
 	tp->p_nxt = (struct protoidmem *)calloc(1, sizeof(*tp));
 	if (tp->p_nxt == NULL)
-		(*ndo->ndo_error)(ndo, "lookup_protoid: calloc");
+		(*ndo->ndo_error)(ndo, S_ERR_ND_MEM_ALLOC, "lookup_protoid: calloc");
 
 	return tp;
 }
 
 const char *
-etheraddr_string(netdissect_options *ndo, const u_char *ep)
+etheraddr_string(netdissect_options *ndo, const uint8_t *ep)
 {
 	int i;
 	char *cp;
@@ -577,8 +581,8 @@ etheraddr_string(netdissect_options *ndo, const u_char *ep)
 		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)");
+				(*ndo->ndo_error)(ndo, S_ERR_ND_MEM_ALLOC,
+					"etheraddr_string: strdup(buf2)");
 			return (tp->e_name);
 		}
 	}
@@ -594,18 +598,19 @@ etheraddr_string(netdissect_options *ndo, const u_char *ep)
 	}
 
 	if (!ndo->ndo_nflag) {
-		snprintf(cp, BUFSIZE - (2 + 5*3), " (oui %s)",
+		nd_snprintf(cp, BUFSIZE - (2 + 5*3), " (oui %s)",
 		    tok2str(oui_values, "Unknown", oui));
 	} else
 		*cp = '\0';
 	tp->e_name = strdup(buf);
 	if (tp->e_name == NULL)
-		(*ndo->ndo_error)(ndo, "etheraddr_string: strdup(buf)");
+		(*ndo->ndo_error)(ndo, S_ERR_ND_MEM_ALLOC,
+				  "etheraddr_string: strdup(buf)");
 	return (tp->e_name);
 }
 
 const char *
-le64addr_string(netdissect_options *ndo, const u_char *ep)
+le64addr_string(netdissect_options *ndo, const uint8_t *ep)
 {
 	const unsigned int len = 8;
 	u_int i;
@@ -629,13 +634,14 @@ le64addr_string(netdissect_options *ndo, const u_char *ep)
 
 	tp->bs_name = strdup(buf);
 	if (tp->bs_name == NULL)
-		(*ndo->ndo_error)(ndo, "le64addr_string: strdup(buf)");
+		(*ndo->ndo_error)(ndo, S_ERR_ND_MEM_ALLOC,
+				  "le64addr_string: strdup(buf)");
 
 	return (tp->bs_name);
 }
 
 const char *
-linkaddr_string(netdissect_options *ndo, const u_char *ep,
+linkaddr_string(netdissect_options *ndo, const uint8_t *ep,
 		const unsigned int type, const unsigned int len)
 {
 	u_int i;
@@ -657,7 +663,8 @@ linkaddr_string(netdissect_options *ndo, const u_char *ep,
 
 	tp->bs_name = cp = (char *)malloc(len*3);
 	if (tp->bs_name == NULL)
-		(*ndo->ndo_error)(ndo, "linkaddr_string: malloc");
+		(*ndo->ndo_error)(ndo, S_ERR_ND_MEM_ALLOC,
+				  "linkaddr_string: malloc");
 	*cp++ = hex[*ep >> 4];
 	*cp++ = hex[*ep++ & 0xf];
 	for (i = len-1; i > 0 ; --i) {
@@ -669,37 +676,9 @@ linkaddr_string(netdissect_options *ndo, const u_char *ep,
 	return (tp->bs_name);
 }
 
-const char *
-etherproto_string(netdissect_options *ndo, u_short port)
-{
-	char *cp;
-	struct hnamemem *tp;
-	uint32_t i = port;
-	char buf[sizeof("0000")];
-
-	for (tp = &eprototable[i & (HASHNAMESIZE-1)]; tp->nxt; tp = tp->nxt)
-		if (tp->addr == i)
-			return (tp->name);
-
-	tp->addr = i;
-	tp->nxt = newhnamemem(ndo);
-
-	cp = buf;
-	NTOHS(port);
-	*cp++ = hex[port >> 12 & 0xf];
-	*cp++ = hex[port >> 8 & 0xf];
-	*cp++ = hex[port >> 4 & 0xf];
-	*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);
-}
-
 #define ISONSAP_MAX_LENGTH 20
 const char *
-isonsap_string(netdissect_options *ndo, const u_char *nsap,
+isonsap_string(netdissect_options *ndo, const uint8_t *nsap,
 	       u_int nsap_length)
 {
 	u_int nsap_idx;
@@ -715,14 +694,15 @@ isonsap_string(netdissect_options *ndo, const u_char *nsap,
 
 	tp->e_name = cp = (char *)malloc(sizeof("xx.xxxx.xxxx.xxxx.xxxx.xxxx.xxxx.xxxx.xxxx.xxxx.xx"));
 	if (cp == NULL)
-		(*ndo->ndo_error)(ndo, "isonsap_string: malloc");
+		(*ndo->ndo_error)(ndo, S_ERR_ND_MEM_ALLOC,
+				  "isonsap_string: malloc");
 
 	for (nsap_idx = 0; nsap_idx < nsap_length; nsap_idx++) {
 		*cp++ = hex[*nsap >> 4];
 		*cp++ = hex[*nsap++ & 0xf];
 		if (((nsap_idx & 1) == 0) &&
 		     (nsap_idx + 1 < nsap_length)) {
-		     	*cp++ = '.';
+			*cp++ = '.';
 		}
 	}
 	*cp = '\0';
@@ -743,10 +723,11 @@ tcpport_string(netdissect_options *ndo, u_short port)
 	tp->addr = i;
 	tp->nxt = newhnamemem(ndo);
 
-	(void)snprintf(buf, sizeof(buf), "%u", i);
+	(void)nd_snprintf(buf, sizeof(buf), "%u", i);
 	tp->name = strdup(buf);
 	if (tp->name == NULL)
-		(*ndo->ndo_error)(ndo, "tcpport_string: strdup(buf)");
+		(*ndo->ndo_error)(ndo, S_ERR_ND_MEM_ALLOC,
+				  "tcpport_string: strdup(buf)");
 	return (tp->name);
 }
 
@@ -764,10 +745,11 @@ udpport_string(netdissect_options *ndo, u_short port)
 	tp->addr = i;
 	tp->nxt = newhnamemem(ndo);
 
-	(void)snprintf(buf, sizeof(buf), "%u", i);
+	(void)nd_snprintf(buf, sizeof(buf), "%u", i);
 	tp->name = strdup(buf);
 	if (tp->name == NULL)
-		(*ndo->ndo_error)(ndo, "udpport_string: strdup(buf)");
+		(*ndo->ndo_error)(ndo, S_ERR_ND_MEM_ALLOC,
+				  "udpport_string: strdup(buf)");
 	return (tp->name);
 }
 
@@ -795,7 +777,8 @@ ipxsap_string(netdissect_options *ndo, u_short port)
 	*cp++ = '\0';
 	tp->name = strdup(buf);
 	if (tp->name == NULL)
-		(*ndo->ndo_error)(ndo, "ipxsap_string: strdup(buf)");
+		(*ndo->ndo_error)(ndo, S_ERR_ND_MEM_ALLOC,
+				  "ipxsap_string: strdup(buf)");
 	return (tp->name);
 }
 
@@ -820,12 +803,13 @@ init_servarray(netdissect_options *ndo)
 		while (table->name)
 			table = table->nxt;
 		if (ndo->ndo_nflag) {
-			(void)snprintf(buf, sizeof(buf), "%d", port);
+			(void)nd_snprintf(buf, sizeof(buf), "%d", port);
 			table->name = strdup(buf);
 		} else
 			table->name = strdup(sv->s_name);
 		if (table->name == NULL)
-			(*ndo->ndo_error)(ndo, "init_servarray: strdup");
+			(*ndo->ndo_error)(ndo, S_ERR_ND_MEM_ALLOC,
+					  "init_servarray: strdup");
 
 		table->addr = port;
 		table->nxt = newhnamemem(ndo);
@@ -911,8 +895,8 @@ init_protoidarray(netdissect_options *ndo)
 		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)");
+			(*ndo->ndo_error)(ndo, S_ERR_ND_MEM_ALLOC,
+				"init_protoidarray: strdup(eproto_db[i].s)");
 	}
 	/* Hardwire some SNAP proto ID names */
 	for (pl = protoidlist; pl->name != NULL; ++pl) {
@@ -965,8 +949,8 @@ init_etherarray(netdissect_options *ndo)
 			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)");
+				(*ndo->ndo_error)(ndo, S_ERR_ND_MEM_ALLOC,
+					"init_etherarray: strdup(ep->addr)");
 		}
 		(void)fclose(fp);
 	}
@@ -986,8 +970,8 @@ init_etherarray(netdissect_options *ndo)
 		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)");
+				(*ndo->ndo_error)(ndo, S_ERR_ND_MEM_ALLOC,
+					"init_etherarray: strdup(name)");
 			continue;
 		}
 #endif
@@ -995,7 +979,10 @@ init_etherarray(netdissect_options *ndo)
 	}
 }
 
-static const struct tok ipxsap_db[] = {
+static const struct ipxsap_ent {
+	uint16_t	v;
+	const char	*s;
+} ipxsap_db[] = {
 	{ 0x0000, "Unknown" },
 	{ 0x0001, "User" },
 	{ 0x0002, "User Group" },
@@ -1219,7 +1206,7 @@ init_ipxsaparray(netdissect_options *ndo)
 	struct hnamemem *table;
 
 	for (i = 0; ipxsap_db[i].s != NULL; i++) {
-		int j = htons(ipxsap_db[i].v) & (HASHNAMESIZE-1);
+		u_int j = htons(ipxsap_db[i].v) & (HASHNAMESIZE-1);
 		table = &ipxsaptable[j];
 		while (table->name)
 			table = table->nxt;
@@ -1287,7 +1274,8 @@ newhnamemem(netdissect_options *ndo)
 		num = 64;
 		ptr = (struct hnamemem *)calloc(num, sizeof (*ptr));
 		if (ptr == NULL)
-			(*ndo->ndo_error)(ndo, "newhnamemem: calloc");
+			(*ndo->ndo_error)(ndo, S_ERR_ND_MEM_ALLOC,
+					  "newhnamemem: calloc");
 	}
 	--num;
 	p = ptr++;
@@ -1306,7 +1294,8 @@ newh6namemem(netdissect_options *ndo)
 		num = 64;
 		ptr = (struct h6namemem *)calloc(num, sizeof (*ptr));
 		if (ptr == NULL)
-			(*ndo->ndo_error)(ndo, "newh6namemem: calloc");
+			(*ndo->ndo_error)(ndo, S_ERR_ND_MEM_ALLOC,
+					  "newh6namemem: calloc");
 	}
 	--num;
 	p = ptr++;
@@ -1318,7 +1307,7 @@ const char *
 ieee8021q_tci_string(const uint16_t tci)
 {
 	static char buf[128];
-	snprintf(buf, sizeof(buf), "vlan %u, p %u%s",
+	nd_snprintf(buf, sizeof(buf), "vlan %u, p %u%s",
 	         tci & 0xfff,
 	         tci >> 13,
 	         (tci & 0x1000) ? ", DEI" : "");