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authorIngo Schwarze <schwarze@openbsd.org>2014-12-19 17:12:04 +0000
committerIngo Schwarze <schwarze@openbsd.org>2014-12-19 17:12:04 +0000
commit6e13fac22eeefb3e711d98236a94e9f7fefb6442 (patch)
tree1c249dbcaf76173824a51bf1c817fd3490440ca2 /term_ps.c
parent3e2c5875ed63b44494405e85c9aa899ca0b2c53e (diff)
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Enforcing an arbitrary, implementation dependent, undocumented limit
by calling assert() when valid user input exceeds it is a bad idea. Allocate the terminal font stack dynamically instead of crashing above 10 entries. Issue found by jsg@ with afl.
Diffstat (limited to 'term_ps.c')
-rw-r--r--term_ps.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/term_ps.c b/term_ps.c
index e3299d70..d2452669 100644
--- a/term_ps.c
+++ b/term_ps.c
@@ -1,4 +1,4 @@
-/* $Id: term_ps.c,v 1.70 2014/12/01 08:05:52 schwarze Exp $ */
+/* $Id: term_ps.c,v 1.71 2014/12/19 17:12:04 schwarze Exp $ */
/*
* Copyright (c) 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
* Copyright (c) 2014 Ingo Schwarze <schwarze@openbsd.org>
@@ -540,6 +540,9 @@ pspdf_alloc(const struct mchars *mchars, char *outopts)
p = mandoc_calloc(1, sizeof(struct termp));
p->symtab = mchars;
p->enc = TERMENC_ASCII;
+ p->fontq = mandoc_reallocarray(NULL,
+ (p->fontsz = 8), sizeof(enum termfont));
+ p->fontq[0] = p->fontl = TERMFONT_NONE;
p->ps = mandoc_calloc(1, sizeof(struct termp_ps));
p->advance = ps_advance;