dup2              236 lib-src/seccomp-filter.c   RULE (SCMP_ACT_ALLOW, SCMP_SYS (dup2));
dup2               66 lib/cloexec.c    if (dup2 (desc, desc) < 0)
dup2              145 lib/dup2.c       dupfd = dup2 (fd, desired_fd);
dup2              180 lib/dup2.c       result = dup2 (fd, desired_fd);
dup2              241 lib/fcntl.c            if (0 <= dup2 (fd, fd))
dup2              574 lib/fcntl.c              result = dup2 (fd, arg);
dup2              103 lib/pselect.c            && dup2 (i, i) != i)
dup2              500 lib/unistd.in.h _GL_FUNCDECL_RPL (dup2, int, (int oldfd, int newfd));
dup2              501 lib/unistd.in.h _GL_CXXALIAS_RPL (dup2, int, (int oldfd, int newfd));
dup2              507 lib/unistd.in.h _GL_CXXALIAS_MDA (dup2, int, (int oldfd, int newfd));
dup2              509 lib/unistd.in.h _GL_CXXALIAS_SYS (dup2, int, (int oldfd, int newfd));
dup2              511 lib/unistd.in.h _GL_CXXALIASWARN (dup2);
dup2              515 lib/unistd.in.h _GL_WARN_ON_USE (dup2, "dup2 is unportable - "
dup2              527 lib/unistd.in.h _GL_CXXALIAS_MDA (dup2, int, (int oldfd, int newfd));
dup2              529 lib/unistd.in.h _GL_CXXALIAS_SYS (dup2, int, (int oldfd, int newfd));
dup2              531 lib/unistd.in.h _GL_CXXALIASWARN (dup2);
dup2             1263 src/callproc.c   dup2 (in, STDIN_FILENO);
dup2             1264 src/callproc.c   dup2 (out, STDOUT_FILENO);
dup2             1265 src/callproc.c   dup2 (err, STDERR_FILENO);
dup2             3397 src/emacs.c          err |= dup2 (nfd, STDIN_FILENO) < 0;
dup2             3398 src/emacs.c          err |= dup2 (nfd, STDOUT_FILENO) < 0;
dup2             3399 src/emacs.c          err |= dup2 (nfd, STDERR_FILENO) < 0;
dup2             3780 src/msdos.c      dup2 (tempin, 0);
dup2             3781 src/msdos.c      dup2 (tempout, 1);
dup2             3782 src/msdos.c      dup2 (temperr, 2);
dup2             3826 src/msdos.c      dup2 (inbak, 0);
dup2             3827 src/msdos.c      dup2 (outbak, 1);
dup2             3828 src/msdos.c      dup2 (errbak, 2);
dup2              973 src/print.c      if (dup2 (fd, STDERR_FILENO) < 0)
dup2              224 src/sysdep.c     if (dup2 (fd, fd) < 0 && errno == EBADF)
dup2              227 src/sysdep.c         if (n < 0 || (fd != n && (dup2 (n, fd) < 0 || emacs_close (n) != 0)))