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csi: color index is an 8-bit unsigned value

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This fixes an issue where a large 8-bit value was signed extended into
a large 64-bit value.
This commit is contained in:
Daniel Eklöf 2019-07-18 14:25:15 +02:00
parent df9162450d
commit d5157c15b0
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GPG key ID: 5BBD4992C116573F
1 changed files with 4 additions and 6 deletions
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10
csi.c
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@ -194,9 +194,8 @@ csi_sgr(struct terminal *term)
if (term->vt.params.idx - i - 1 >= 2 &&
term->vt.params.v[i + 1].value == 5)
{
size_t idx = term->vt.params.v[i + 2].value;
if (idx < 5)
term->vt.attrs.foreground = 1 << 31 | colors256[idx];
uint8_t idx = term->vt.params.v[i + 2].value;
term->vt.attrs.foreground = 1 << 31 | colors256[idx];
i += 2;
}
@ -257,9 +256,8 @@ csi_sgr(struct terminal *term)
if (term->vt.params.idx - i - 1 >= 2 &&
term->vt.params.v[i + 1].value == 5)
{
size_t idx = term->vt.params.v[i + 2].value;
if (idx < 256)
term->vt.attrs.background = 1 << 31 | colors256[idx];
uint8_t idx = term->vt.params.v[i + 2].value;
term->vt.attrs.background = 1 << 31 | colors256[idx];
i += 2;
}