dup() -> dup2() gcc would warn about an unused result. We know it is 0 and dup() can't fail in these circumstances, as we closed fd0 previously. Using dup2() to do the same saves one line and shuts gcc up, bringing us a clean build back.
1 files changed, 1 insertions(+), 2 deletions(-) M st.c
M st.c => st.c +1 -2
@@ 1430,8 1430,7 @@ ttynew(void) if (opt_line) { if ((cmdfd = open(opt_line, O_RDWR)) < 0) die("open line failed: %s\n", strerror(errno)); - close(0); - dup(cmdfd); + dup2(cmdfd, 0); stty(); return; }