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Use a small hack to get around an ncurses buffer overread
Patch by iphydf
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parent
fdfaaf953f
commit
22ca3704d2
@ -143,11 +143,14 @@ static struct line_info *line_info_ret_queue(struct history *hst)
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*/
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static int print_n_chars(WINDOW *win, const wchar_t *s, size_t n, int max_y)
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{
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// we use an array to represent a single wchar in order to get around an ncurses
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// bug with waddnwstr() that overreads the memory address by one byte when
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// supplied with a single wchar.
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wchar_t ch[2] = {0};
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bool newline = false;
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wchar_t ch;
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for (size_t i = 0; i < n && (ch = s[i]); ++i) {
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if (ch == L'\n') {
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for (size_t i = 0; i < n && (ch[0] = s[i]); ++i) {
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if (ch[0] == L'\n') {
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newline = true;
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int x;
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@ -164,11 +167,11 @@ static int print_n_chars(WINDOW *win, const wchar_t *s, size_t n, int max_y)
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if (win) {
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#ifdef HAVE_WIDECHAR
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waddnwstr(win, &ch, 1);
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waddnwstr(win, ch, 1);
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#else
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char b;
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if (wcstombs(&b, &ch, sizeof(char)) != 1) {
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if (wcstombs(&b, ch, sizeof(char)) != 1) {
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continue;
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}
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