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authorJohn Keeping <john@keeping.me.uk>2016-08-07 15:54:14 +0100
committerJohn Keeping <john@keeping.me.uk>2016-10-01 11:43:33 +0100
commit35df710a1fa21b62c5328e2c98f29a68a0312a25 (patch)
treedb984e301d72179483d6173138f2323b02b98967 /ui-ssdiff.c
parentgit: update to v2.10.0 (diff)
downloadcgit-pink-35df710a1fa21b62c5328e2c98f29a68a0312a25.tar.gz
cgit-pink-35df710a1fa21b62c5328e2c98f29a68a0312a25.zip
configfile: fix EOF handling
Currently we can end up passing EOF to isspace(), which is in fact
libgit's sane_isspace which does:

	((sane_ctype[(unsigned char)(x)] & (GIT_SPACE)) != 0)

It is very unlikely that EOF cast to "unsigned char" will end up in a
character that has the GIT_SPACE bit set, but the standard only requires
that EOF be a negative integer, so it could access any value in the
sane_ctype array.

If it does end up returning true for isspace() then this loop will never
terminate, so handle EOF as a special value in the same way as the other
loops in this function.

Signed-off-by: John Keeping <john@keeping.me.uk>
Diffstat (limited to 'ui-ssdiff.c')
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