[Bug 15041] New: [PATCH] Awk: fix printf format when using large numbers

[bugzilla at busybox.net]

https://bugs.busybox.net/show_bug.cgi?id=15041

            Bug ID: 15041
           Summary: [PATCH] Awk: fix printf format when using large
                    numbers
           Product: Busybox
           Version: unspecified
          Hardware: All
                OS: All
            Status: NEW
          Severity: normal
          Priority: P5
         Component: Other
          Assignee: unassigned at busybox.net
          Reporter: caribpa at outlook.com
                CC: busybox-cvs at busybox.net
  Target Milestone: ---

Created attachment 9381
  --> https://bugs.busybox.net/attachment.cgi?id=9381&action=edit
awk-printf-fix-format-large-numbers.patch

Hi!

I noticed that Busybox awk truncates double to int when printing as %d, %i, %u,
%o, or %x [1][2]. This means that expected information is lost, for example:

  awk 'BEGIN{printf "0x%x\n", 4294967290}'

returns 0x80000000 (or 0x7fffffff in some platforms) instead of 0xfffffffa,
like it happens in at least gawk, mawk, and nawk.

The patch attached simply changes the int casting into long long and removes
the TODO comment.

Cheers,
Carlos


[1] -
https://git.busybox.net/busybox/tree/editors/awk.c?id=c8c1fcdba163f264a503380bc63485aacd09214c#n929
[2] -
https://git.busybox.net/busybox/tree/editors/awk.c?id=c8c1fcdba163f264a503380bc63485aacd09214c#n2418

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