Fix invalid read in terminate_string()

This commit is contained in:
simon 2020-02-22 13:10:40 -05:00
parent 1ac8b40e3d
commit d19a75926b

View File

@ -91,7 +91,7 @@ text_buffer_t text_buffer_create(int max_size) {
}
void text_buffer_terminate_string(text_buffer_t *buf) {
if (*(buf->dyn_buffer.buf + buf->dyn_buffer.cur - 1) == ' ') {
if (buf->dyn_buffer.cur > 0 && *(buf->dyn_buffer.buf + buf->dyn_buffer.cur - 1) == ' ') {
*(buf->dyn_buffer.buf + buf->dyn_buffer.cur - 1) = '\0';
} else {
dyn_buffer_write_char(&buf->dyn_buffer, '\0');