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proc/escape.c: Handle negative wcwidth() return value.

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This should never happen, because wcwidth() is called only if iswprint()
returns nonzero. But belt-and-suspenders, and make it visually clear
(very important for the next patch).
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Qualys Security Advisory 1970-01-01 00:00:00 +00:00 committed by Craig Small
parent 47303a3592
commit 8d359b04ab
1 changed files with 1 additions and 1 deletions
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proc/escape.c
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@ -88,7 +88,7 @@ static int escape_str_utf8(char *restrict dst, const char *restrict src, int buf
/* multibyte - printable */ /* multibyte - printable */
int wlen = wcwidth(wc); int wlen = wcwidth(wc);
if (wlen==0) { if (wlen<=0) {
// invisible multibyte -- we don't ignore it, because some terminal // invisible multibyte -- we don't ignore it, because some terminal
// interpret it wrong and more safe is replace it with '?' // interpret it wrong and more safe is replace it with '?'
*(dst++) = '?'; *(dst++) = '?';