libc6: sscanf: %llu doesn't work

[Mario 'BitKoenig' Holbe]

Package: libc6
Version: 2.2.4-6

Hoi,

in tracking down a problem with 'iptables', I found a problem
with the libc6 sscanf function, which I don't know, where to
address it to, so I hope, you know :)

It seems, the sscanf has a problem with the %llu conversion:

holbe@darkside:/home/holbe% cat te.c
#include <stdio.h>

int main(void) {
        int r;
        unsigned long long int bla = 0;

        r = sscanf("1234 2345", "%lu", &bla);
        printf("%i   %llu\n", r, bla);
        bla = 0;
        r = sscanf("1234 2345", "%llu", &bla);
        printf("%i   %llu\n", r, bla);
        bla = 0;
        r = sscanf("1234 2345", "%Lu", &bla);
        printf("%i   %llu\n", r, bla);

        return 0;
}
holbe@darkside:/home/holbe% cc -o te te.c
holbe@darkside:/home/holbe% ./te
1   1234
0   0
1   1234
holbe@darkside:/home/holbe%

The sscanf manpage says:
[...]
       l      Indicates either that the conversion will be one of
              dioux or n and the next pointer is a pointer  to  a
              long  int (rather than int), or that the conversion
              will be one of  efg  and  the  next  pointer  is  a
              pointer  to double (rather than float).  Specifying
              two l flags is equivalent to the L flag.

       L      Indicates that the conversion will  be  either  efg
              and the next pointer is a pointer to long double or
              the conversion will be dioux and the  next  pointer
              is a pointer to long long.  (Note that long long is
              not an ANSI C type. Any program using this will not
              be portable to all architectures).


The iptables binary is involved here with it's code for reading
counters for -c (--set-counters) option, which results in:

root@darkside:~# iptables -R INPUT 1 -c 10 100 -i lo -j RETURN
iptables v1.2.4: -c packet counter not numeric

I dunno, if it is a debian specific problem or a general libc6
problem or whatever and I hope, you know :)


Thanks for your work & regards,
   Mario

PS: I'll CC: this mail to the linux netfilter users list because of
at least one unanswered question about a 'packet counter not numeric'
there :)
-- 
*axiom* welcher sensorische input bewirkte die output-aktion,
        den irc-chatter mit dem nick "dus" des irc-servers
        mittels eines kills zu verweisen?