Function getSafeInfoString

src/server.cpp:5584–5593

Returns a sanitized version of s that contains no unsafe info string chars. * If no unsafe characters are found, simply returns s. Caller needs to * free tmp if it is non-null on return. */

 * free tmp if it is non-null on return.
 */
const char *getSafeInfoString(const char *s, size_t len, char **tmp) {
    *tmp = NULL;
    if (mempbrk(s, len, unsafe_info_chars,sizeof(unsafe_info_chars)-1)
        == NULL) return s;
    char *_new = *tmp = (char*)zmalloc(len + 1);
    memcpy(_new, s, len);
    _new[len] = '\0';
    return memmapchars(_new, len, unsafe_info_chars, unsafe_info_chars_substs,
                       sizeof(unsafe_info_chars)-1);
}

/* Create the string returned by the INFO command. This is decoupled
 * by the INFO command itself as we need to report the same information