Lines Matching refs:fd2
9 * Check to see if fd2 is already open; if so, close it.
10 * Duplicate fd1 onto fd2; checking to make sure fd2 is a valid fd.
11 * Return fd2 if all went well; return BADEXIT otherwise.
20 dup2(int fd1, int fd2)
22 if (fd1 != fd2) {
25 if (fcntl(fd2, F_GETFL) >= 0)
26 close(fd2);
27 if (fcntl(fd1, F_DUPFD, fd2) < 0)
30 return fd2;
