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patch 7.4.695

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Problem:    Out-of-bounds read, dectected by Coverity.
Solution:   Remember the value of cmap for the first matching encoding.  Reset
            cmap to that value if first matching encoding is going to be used.
            (Eliseo Martínez)
This commit is contained in:
Bram Moolenaar
2015-04-13 14:45:27 +02:00
parent 83d1b19015
commit 7c94ce910f
2 changed files with 10 additions and 0 deletions
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8
src/hardcopy.c
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@@ -2513,13 +2513,18 @@ mch_print_init(psettings, jobname, forceit)
props = enc_canon_props(p_encoding);
if (!(props & ENC_8BIT) && ((*p_pmcs != NUL) || !(props & ENC_UNICODE)))
{
int cmap_first;
p_mbenc_first = NULL;
for (cmap = 0; cmap < (int)NUM_ELEMENTS(prt_ps_mbfonts); cmap++)
if (prt_match_encoding((char *)p_encoding, &prt_ps_mbfonts[cmap],
&p_mbenc))
{
if (p_mbenc_first == NULL)
{
p_mbenc_first = p_mbenc;
cmap_first = cmap;
}
if (prt_match_charset((char *)p_pmcs, &prt_ps_mbfonts[cmap],
&p_mbchar))
break;
@@ -2527,7 +2532,10 @@ mch_print_init(psettings, jobname, forceit)
/* Use first encoding matched if no charset matched */
if (p_mbchar == NULL && p_mbenc_first != NULL)
{
p_mbenc = p_mbenc_first;
cmap = cmap_first;
}
}
prt_out_mbyte = (p_mbenc != NULL);