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Fix null pointer access in strhandle - st - simple terminal |
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git clone git://git.suckless.org/st |
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--- |
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commit a0467c802d4f86ed162486e3453dd61181423902 |
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parent 273db5ceaf392e68c2faf8f7dec14ea2e25e980d |
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Author: Jochen Sprickerhof <[email protected]> |
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Date: Mon, 27 Dec 2021 11:41:42 +0100 |
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Fix null pointer access in strhandle |
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According to the spec the argument is optional for 104, so p can be |
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NULL as can be tested with printf '\x1b]104\x07'. This is a regression |
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of 8e31030. |
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Diffstat: |
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M st.c | 4 ++-- |
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1 file changed, 2 insertions(+), 2 deletions(-) |
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--- |
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diff --git a/st.c b/st.c |
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@@ -1960,10 +1960,10 @@ strhandle(void) |
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break; |
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p = strescseq.args[2]; |
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/* FALLTHROUGH */ |
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- case 104: /* color reset, here p = NULL */ |
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+ case 104: /* color reset */ |
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j = (narg > 1) ? atoi(strescseq.args[1]) : -1; |
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- if (!strcmp(p, "?")) |
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+ if (p && !strcmp(p, "?")) |
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osc4_color_response(j); |
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else if (xsetcolorname(j, p)) { |
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if (par == 104 && narg <= 1) |
