diff options
Diffstat (limited to 'REORG.TODO/misc/ttyslot.c')
-rw-r--r-- | REORG.TODO/misc/ttyslot.c | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/REORG.TODO/misc/ttyslot.c b/REORG.TODO/misc/ttyslot.c new file mode 100644 index 0000000000..2f3c7953d7 --- /dev/null +++ b/REORG.TODO/misc/ttyslot.c @@ -0,0 +1,72 @@ +/* + * Copyright (c) 1988, 1993 + * The Regents of the University of California. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#if defined(LIBC_SCCS) && !defined(lint) +static char sccsid[] = "@(#)ttyslot.c 8.1 (Berkeley) 6/4/93"; +#endif /* LIBC_SCCS and not lint */ + +#include <ttyent.h> +#include <alloca.h> +#include <stdio.h> +#include <string.h> +#include <unistd.h> + +int +ttyslot (void) +{ + struct ttyent *ttyp; + int slot; + char *p; + int cnt; + size_t buflen = __sysconf (_SC_TTY_NAME_MAX) + 1; + char *name; + + if (buflen == 0) + /* This should be enough if no fixed value is given. */ + buflen = 32; + + name = __alloca (buflen); + + __setttyent(); + for (cnt = 0; cnt < 3; ++cnt) + if (__ttyname_r (cnt, name, buflen) == 0) { + if ((p = strrchr (name, '/'))) + ++p; + else + p = name; + for (slot = 1; (ttyp = __getttyent()); ++slot) + if (!strcmp(ttyp->ty_name, p)) { + __endttyent(); + return(slot); + } + break; + } + __endttyent(); + return(0); +} |