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authorPeter Korsgaard <jacmet@sunsite.dk>2013-09-10 11:52:35 +0200
committerDenys Vlasenko <vda.linux@googlemail.com>2013-09-10 16:22:12 +0200
commit2a053a2430e8de2f5de3da7d4d25343f61161f09 (patch)
treeecf4d1bc83b7f7ec3672758d81f3eec5a346246f /configs
parentdc57294485068e644714804ad1b1a3a10c4fceec (diff)
downloadbusybox-2a053a2430e8de2f5de3da7d4d25343f61161f09.tar.gz
ar: read_num(): fix reading fields using the entire width
ar fields are fixed length text strings (padded with spaces). Ensure bb_strtou doesn't read past the field in case the full width is used. The fields are only read once, so the simplest/smallest solution to me seems to be to just pass the length to read_num() and then zero terminate the string before passing it to bb_strtou. This does mean that the fields MUST be read in reverse order, so some minor reshuffling was needed. Bloat-o-meter: function old new delta get_header_ar 394 414 +20 read_num 29 36 +7 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 2/0 up/down: 27/0) Total: 27 bytes Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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