avoid potential UB when using isprint() - st - Personal fork of st (HTM) git clone git://git.drkhsh.at/st.git (DIR) Log (DIR) Files (DIR) Refs (DIR) README (DIR) LICENSE --- (DIR) commit af3bb68add1c40d19d0dee382009e21b0870a38f (DIR) parent 2aefa348baf4b702fdce98eb105bcba175d8283f (HTM) Author: NRK <nrk@disroot.org> Date: Fri, 18 Mar 2022 16:20:54 +0600 avoid potential UB when using isprint() all the ctype.h functions' argument must be representable as an unsigned char or as EOF, otherwise the behavior is undefined. Diffstat: M st.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- (DIR) diff --git a/st.c b/st.c @@ -367,7 +367,7 @@ static const char base64_digits[] = { char base64dec_getc(const char **src) { - while (**src && !isprint(**src)) + while (**src && !isprint((unsigned char)**src)) (*src)++; return **src ? *((*src)++) : '='; /* emulate padding if string ends */ }