X-Git-Url: https://git.tcpdump.org/tcpdump/blobdiff_plain/59241d98166c2cbfe19dd1fa194212fccacc7dc0..ff4af2069a7d1f56cbcd4292e3d25ddb41a19b0b:/print-snmp.c

diff --git a/print-snmp.c b/print-snmp.c
index 2819e855..42c9785a 100644
--- a/print-snmp.c
+++ b/print-snmp.c
@@ -66,6 +66,7 @@
 
 #include <stdio.h>
 #include <string.h>
+#include <limits.h>
 
 #ifdef USE_LIBSMI
 #include <smi.h>
@@ -531,7 +532,7 @@ asn1_parse(netdissect_options *ndo,
 				break;
 
 			case INTEGER: {
-				int32_t data;
+				uint32_t data;
 				elem->type = BE_INT;
 				data = 0;
 
@@ -540,7 +541,7 @@ asn1_parse(netdissect_options *ndo,
 					goto invalid;
 				}
 				if (GET_U_1(p) & ASN_BIT8)	/* negative */
-					data = -1;
+					data = UINT_MAX;
 				for (i = elem->asnlen; i != 0; p++, i--)
 					data = (data << ASN_SHIFT8) | GET_U_1(p);
 				elem->data.integer = data;
@@ -726,7 +727,8 @@ asn1_print(netdissect_options *ndo,
 		break;
 
 	case BE_OID: {
-		int o = 0, first = -1;
+		int first = -1;
+		uint32_t o = 0;
 
 		p = (const u_char *)elem->data.raw;
 		i = asnlen;
@@ -1197,7 +1199,7 @@ varbind_print(netdissect_options *ndo,
               u_short pduid, const u_char *np, u_int length)
 {
 	struct be elem;
-	int count = 0, ind;
+	int count = 0;
 #ifdef USE_LIBSMI
 	SmiNode *smiNode = NULL;
 #endif
@@ -1217,7 +1219,7 @@ varbind_print(netdissect_options *ndo,
 	length = elem.asnlen;
 	np = (const u_char *)elem.data.raw;
 
-	for (ind = 1; length > 0; ind++) {
+	while (length) {
 		const u_char *vbend;
 		u_int vblength;