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authorRon Yorston <rmy@pobox.com>2017-07-19 10:43:10 +0100
committerDenys Vlasenko <vda.linux@googlemail.com>2017-07-19 13:12:02 +0200
commita165603d24dc3b5080859abfa834d092f456489d (patch)
treecc418520ca4343d57cb99678187e76e991885c0e /libbb/update_passwd.c
parent9880f86d6e68a2a9b0d691ad0667f38d73eb89e0 (diff)
downloadbusybox-a165603d24dc3b5080859abfa834d092f456489d.tar.gz
od_bloaty: fix floating point output
Currently od_bloaty does this: $ /bin/echo -en '\x00\x00\x00\x00\x00\x00\x00\x00' | busybox od -f od: invalid character 'F' in type string 'fF' $ /bin/echo -en '\x00\x00\x00\x00\x00\x00\x00\x00' | busybox od -t fD od: invalid character 'D' in type string 'fD' $ /bin/echo -en '\x00\x00\x00\x00\x00\x00\x00\x00' | busybox od -t f 0000000 0000010 The first two occur because the alphabetic length specifier isn't being properly skipped. The third is due to the empty length specifier being treated as alphabetic so we fall off the end of the FDL_sizeof array with undetermined consequences. Coreutils defaults to printing a double in this case. With this patch the output is: $ /bin/echo -en '\x00\x00\x00\x00\x00\x00\x00\x00' | ./busybox od -f 0000000 0.0000000e+00 0.0000000e+00 0000010 $ /bin/echo -en '\x00\x00\x00\x00\x00\x00\x00\x00' | ./busybox od -t fD 0000000 0.000000000000000e+00 0000010 $ /bin/echo -en '\x00\x00\x00\x00\x00\x00\x00\x00' | ./busybox od -t f 0000000 0.000000000000000e+00 0000010 I guess nobody uses BusyBox od to print floating point numbers. Signed-off-by: Ron Yorston <rmy@pobox.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Diffstat (limited to 'libbb/update_passwd.c')
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