be more strict with signed/unsigned

ldap.h

@@ -99,11 +99,13 @@ void freepal(struct PartialAttributeList* a);
 
 int scan_ldapstring(const char* src,const char* max,struct string* s);
 int scan_ldapmessage(const char* src,const char* max,
-		     long* messageid,long* op,long* len);
+		     unsigned long* messageid,unsigned long* op,
+		     unsigned long* len);
 int scan_ldapbindrequest(const char* src,const char* max,
-			 long* version,struct string* name,long* method);
+			 unsigned long* version,struct string* name,
+			 unsigned long* method);
 int scan_ldapbindresponse(const char* src,const char* max,
-			  long* result,struct string* matcheddn,
+			  unsigned long* result,struct string* matcheddn,
 			  struct string* errormessage,struct string* referral);
 int scan_ldapava(const char* src,const char* max,struct AttributeValueAssertion* a);
 int scan_ldapsearchfilter(const char* src,const char* max,struct Filter** f);

parse.c

@@ -1,3 +1,4 @@
+#include <alloca.h>
 #include <inttypes.h>
 #include <unistd.h>
 #include <sys/fcntl.h>

scan_ldapbindrequest.c

@@ -2,7 +2,8 @@
 #include "ldap.h"
 
 int scan_ldapbindrequest(const char* src,const char* max,
-			 long* version,struct string* name,long* method) {
+			 unsigned long* version,struct string* name,
+			 unsigned long* method) {
   int res,tmp;
   if (!(res=scan_asn1INTEGER(src,max,version))) return 0;
   if (!(tmp=scan_ldapstring(src+res,max,name))) return 0;

scan_ldapbindresponse.c

@@ -2,7 +2,7 @@
 #include "ldap.h"
 
 int scan_ldapbindresponse(const char* src,const char* max,
-			  long* result,struct string* matcheddn,
+			  unsigned long* result,struct string* matcheddn,
 			  struct string* errormessage,struct string* referral) {
   int res,tmp;
   if (!(res=scan_asn1ENUMERATED(src,max,result))) return 0;

scan_ldapmessage.c

@@ -2,7 +2,7 @@
 #include "ldap.h"
 
 int scan_ldapmessage(const char* src,const char* max,
-		     long* messageid,long* op,long* len) {
+		     unsigned long* messageid,unsigned long* op,unsigned long* len) {
   int res,tmp;
   if (!(res=scan_asn1SEQUENCE(src,max,len))) goto error;
   if (!(tmp=scan_asn1INTEGER(src+res,max,messageid))) goto error;