Last century, there was a reason to have these internal integer
data typedefs (from header.h):

     /* XXX hpux needs -Ae in CFLAGS to grok this */
     typedef long long int int_64;
     typedef int int_32;
     typedef short int int_16;
     typedef char int_8;

     /* XXX hpux needs -Ae in CFLAGS to grok this */
     typedef unsigned long long int uint_64;
     typedef unsigned int uint_32;
     typedef unsigned short uint_16;
     typedef unsigned char uint_8;

I see no reason not to switch to <stdint.h> types (as rpm.org has  
recently done).

At the same time, I believe its time to clarify the signedness of  
integer
data types in rpm headers, making all integers in rpm header tags  
"unsigned".

The instant win is that the limit on file size in a package moves  
from 2Gb to 4Gb.

The general win is that the signedness of integer data types becomes  
well defined.

Here are the current integer tags known to rpm, I don't see any tags  
that
need to be signed:

$ rpm -v --querytags | grep ' int'
ARCHIVESIZE            1046 int32
BUILDCPUCLOCK          1176 int32
BUILDTIME              1006 int32
CACHECTIME             1136 int32
CACHEPKGMTIME          1139 int32
CACHEPKGSIZE           1138 int32
CAPABILITY             1105 int32
CHANGELOGTIME          1080 int32
CONFLICTATTRSX         1189 int32
CONFLICTFLAGS          1053 int32
DBINSTANCE             1195 int32
DEPENDSDICT            1145 int32
DIRINDEXES             1116 int32
ENHANCESFLAGS          1161 int32
EPOCH                  1003 int32
E                      1003 int32
FILECLASS              1141 int32
FILECOLORS             1140 int32
FILEDEPENDSN           1144 int32
FILEDEPENDSX           1143 int32
FILEDEVICES            1095 int32
FILEDIGESTALGOS        1177 int32
FILEFLAGS              1037 int32
FILEINODES             1096 int32
FILEMODES              1030 int16
FILEMTIMES             1034 int32
FILERDEVS              1033 int16
FILESIZES              1028 int32
FILEVERIFYFLAGS        1045 int32
FILEXATTRSX            1187 int32
INSTALLCOLOR           1127 int32
INSTALLTID             1128 int32
INSTALLTIME            1008 int32
OBSOLETEATTRSX         1190 int32
OBSOLETEFLAGS          1114 int32
ORIGDIRINDEXES         1119 int32
PACKAGECOLOR           1184 int32
PACKAGEPREFCOLOR       1185 int32
PATCHESFLAGS           1134 int32
PRIORITY               1162 int32
PROVIDEATTRSX          1191 int32
PROVIDEFLAGS           1112 int32
REMOVETID              1129 int32
REQUIREATTRSX          1192 int32
REQUIREFLAGS           1048 int32
SCRIPTMETRICS          1175 int32
SCRIPTSTATES           1174 int32
SIGSIZE                 257 int32
SIZE                   1009 int32
SOURCEPACKAGE          1106 int32
SUGGESTSFLAGS          1158 int32
TRIGGERFLAGS           1068 int32
TRIGGERINDEX           1069 int32
XMAJOR                 1179 int32
XMINOR                 1180 int32

So I'm gonna do the following:
     1) convert to using <stdint.h> types
     2) change all pointers to tag integer data to be unsigned.

Opinions?

73 de Jeff