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term: ignore attempts to set a title that contains an invalid UTF-8 sequence

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Setting the title ultimately leads to a call to
xdg_toplevel::set_title(). It is a protocol violation to try to set a
title that contains an invalid UTF-8 sequence:

    The string must be encoded in UTF-8.

Closes #1552
This commit is contained in:
Daniel Eklöf 2024-02-06 13:08:43 +01:00
parent 756da87346
commit 316136f428
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2 changed files with 10 additions and 0 deletions
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7
terminal.c
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@ -3249,6 +3249,13 @@ term_set_window_title(struct terminal *term, const char *title)
if (term->window_title != NULL && streq(term->window_title, title))
return;
if (mbsntoc32(NULL, title, strlen(title), 0) == (char32_t)-1) {
/* It's an xdg_toplevel::set_title() protocol violation to set
a title with an invalid UTF-8 sequence */
LOG_WARN("%s: title is not valid UTF-8, ignoring", title);
return;
}
free(term->window_title);
term->window_title = xstrdup(title);
render_refresh_title(term);