diff options
Diffstat (limited to 'Build/source')
-rw-r--r-- | Build/source/texk/web2c/ChangeLog | 6 | ||||
-rw-r--r-- | Build/source/texk/web2c/pltotf.ch | 15 |
2 files changed, 21 insertions, 0 deletions
diff --git a/Build/source/texk/web2c/ChangeLog b/Build/source/texk/web2c/ChangeLog index 76a2d802378..b6432ed9d4a 100644 --- a/Build/source/texk/web2c/ChangeLog +++ b/Build/source/texk/web2c/ChangeLog @@ -1,3 +1,9 @@ +2017-09-10 Hironobu Yamashita <h.y.acetaminophen@gmail.com> + + * pltotf.ch: web2c extends the range of 'lf' from 0..32767 + into short (-32768..32767), but the overflow here ends up in + Bad metric (TFM) file. So add a test. + 2017-03-27 Karl Berry <karl@freefriends.org> * Makefile.am (AM_TESTS_ENVIRONMENT): use instead of TESTS_ENVIRONMENT. diff --git a/Build/source/texk/web2c/pltotf.ch b/Build/source/texk/web2c/pltotf.ch index 7668fad9034..587b332c6d4 100644 --- a/Build/source/texk/web2c/pltotf.ch +++ b/Build/source/texk/web2c/pltotf.ch @@ -188,6 +188,21 @@ endif('notdef') @d out(#)==putbyte(#,tfm_file) @z +% [130] web2c extends the range of 'lf' from 0..32767 into +% short (-32768..32767), but the overflow here ends up in +% Bad metric (TFM) file. So we add test here. +@x +lf:=6+lh+(ec-bc+1)+memory[width]+memory[height]+memory[depth]+ +memory[italic]+nl+lk_offset+nk+ne+np; +@y +lf:=6+lh+(ec-bc+1)+memory[width]+memory[height]+memory[depth]+ +memory[italic]+nl+lk_offset+nk+ne+np; +if lf<0 then begin + print_ln('The total number of words in the TFM file too large!'); + uexit(1); + end +@z + @x [136] Fix output of reals. @p procedure out_scaled(x:fix_word); {outputs a scaled |fix_word|} var @!n:byte; {the first byte after the sign} |