Document -r flag, document use of TAPE env variable. Add rcsid. Use err(3).
Remove unused vars (-Wall).
This commit is contained in:
Philippe Charnier
parent
c27b7bad4a
commit
eec2e675fc
@ -10,7 +10,7 @@
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\" 3. All advertising materials mentioning features or use of this software
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.\" must display the following acknowledgement:
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.\" must display the following acknowledgment:
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.\" This product includes software developed by the University of
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.\" California, Berkeley and its contributors.
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.\" 4. Neither the name of the University nor the names of its contributors
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@ -30,6 +30,7 @@
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.\" SUCH DAMAGE.
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.\"
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.\" @(#)ft.8
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.\" $Id$
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.\"
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.Dd February 7, 1994
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.Dt FT 8
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@ -40,15 +41,30 @@
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.Sh SYNOPSIS
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.Nm ft
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.Op Fl f Ar tape
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.Op Fl r
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.Op Ar description
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.Sh DESCRIPTION
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The
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.Nm ft
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.Nm
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command allows multi-volume dump, extract, and view of tape labels, for
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any pre-formatted QIC-40/80 tapes. It is totally system dependent,
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and has nothing to do with the QIC standards.
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.Pp
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.Nm ft
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The following options are available:
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.Bl -tag -width indent
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.It Fl f Ar tape
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Read or write the specified
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.Ar tape
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(default is
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.Pa /dev/rft0
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unless the environment variable
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.Ev TAPE
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is set).
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.It Fl r
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Do retension tape.
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.El
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.Pp
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.Nm Ft
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is used primarily as a filter for tape i/o.
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For example, to save and compress the
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.Pa /usr
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@ -31,14 +31,21 @@
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* 09/02/93 v0.2 pl01
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* Initial revision.
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*
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* usage: ft [ -f tape ] [ description ]
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* usage: ft [ -f tape ] [ -r ] [ description ]
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*/
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#ifndef lint
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static const char rcsid[] =
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"$Id$";
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#endif /* not lint */
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#include <err.h>
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#include <fcntl.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <signal.h>
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#include <time.h>
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#include <unistd.h>
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#include <sys/ftape.h>
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#define DEFQIC "/dev/rft0"
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@ -73,7 +80,7 @@ int doretension = 0; /* TRUE if we should retension tape */
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void
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usage(void)
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{
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fprintf(stderr, "usage: ft [ -r ] [ -f device ] [ \"description\" ]\n");
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fprintf(stderr, "usage: ft [-f device] [-r] [\"description\"]\n");
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exit(1);
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}
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@ -84,35 +91,35 @@ usage(void)
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int
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check_stat(int fd, int wr)
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{
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int r, s;
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int s;
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int sawit = 0;
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/* get tape status */
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if (ioctl(fd, QIOSTATUS, &s) < 0) {
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fprintf(stderr, "could not get drive status\n");
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warnx("could not get drive status");
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return(1);
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}
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/* wait for the tape drive to become ready */
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while ((s & QS_READY) == 0) {
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if (!sawit) {
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fprintf(stderr, "waiting for drive to become ready...\n");
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warnx("waiting for drive to become ready");
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sawit = 1;
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}
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sleep(2);
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if (ioctl(fd, QIOSTATUS, &s) < 0) {
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fprintf(stderr, "could not get drive status\n");
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warnx("could not get drive status");
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return(1);
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}
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}
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if ((s & QS_FMTOK) == 0) {
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fprintf(stderr, "tape is not formatted\n");
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warnx("tape is not formatted");
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return(2);
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}
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if (wr && (s & QS_RDONLY) != 0) {
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fprintf(stderr, "tape is write protected\n");
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warnx("tape is write protected");
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return(3);
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}
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@ -186,12 +193,12 @@ char *qstr(char *str, int nchar)
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int
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get_header(int fd)
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{
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int r, sn, bytes;
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int r, sn;
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QIC_Segment s;
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int gothdr = 0;
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if (ioctl(fd, QIOGEOM, &geo) < 0) {
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fprintf(stderr, "couldn't determine tape geometry\n");
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warnx("couldn't determine tape geometry");
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return(1);
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}
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@ -208,7 +215,7 @@ get_header(int fd)
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if (hsn >= 0) {
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dhsn = sn;
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if (!r && !gothdr) {
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fprintf(stderr, "using secondary header\n");
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warnx("using secondary header");
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bcopy(s.sg_data, hbuff, QCV_SEGSIZE);
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gothdr = 1;
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}
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@ -219,13 +226,13 @@ get_header(int fd)
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bcopy(s.sg_data, hbuff, QCV_SEGSIZE);
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gothdr = 1;
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} else {
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fprintf(stderr, "too many errors in primary header\n");
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warnx("too many errors in primary header");
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}
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}
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}
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if (!gothdr) {
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fprintf(stderr, "couldn't read header segment\n");
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warnx("couldn't read header segment");
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ioctl(fd, QIOREWIND);
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return(1);
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}
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@ -237,16 +244,14 @@ get_header(int fd)
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/*
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* Open /dev/tty and ask for next volume.
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*/
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void
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ask_vol(int vn)
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{
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FILE *inp;
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int fd;
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char c;
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if ((fd = open("/dev/tty", 2)) < 0) {
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fprintf(stderr, "argh!! can't open /dev/tty\n");
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exit(1);
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}
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if ((fd = open("/dev/tty", 2)) < 0)
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errx(1, "argh!! can't open /dev/tty");
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fprintf(stderr, "Insert ftfilt volume %02d and press enter:", vn);
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read(fd, &c, 1);
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@ -273,7 +278,7 @@ do_getname(void)
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void
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do_read(void)
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{
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int sno, vno, sbytes, r, eccfails;
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int sno, vno, sbytes, eccfails;
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long curpos;
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char *hname;
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QIC_Segment s;
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@ -330,13 +335,12 @@ do_read(void)
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if (check_parity(s.sg_data, s.sg_badmap, s.sg_crcmap)) {
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if (++eccfails <= 5) {
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fprintf(stderr,
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"ft: retry %d at segment %d byte %ld\n",
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warnx("retry %d at segment %d byte %ld",
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eccfails, sno, curpos);
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continue;
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} else
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fprintf(stderr,
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"ft: *** ecc failure in segment %d at byte %ld\n",
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warnx(
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"*** ecc failure in segment %d at byte %ld",
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sno, curpos);
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}
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if (tvsize < sbytes) sbytes = tvsize;
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@ -360,7 +364,7 @@ void
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do_write(void)
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{
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int sno, vno, amt, sbytes;
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int c, maxseg, r;
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int maxseg, r;
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ULONG qnow;
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QIC_Segment s;
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char tmpstr[80];
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@ -414,11 +418,9 @@ do_write(void)
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if (amt < sbytes)
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bzero(&s.sg_data[amt], sbytes - amt);
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r = set_parity(s.sg_data, s.sg_badmap);
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if (r) fprintf(stderr, "** warning: ecc problem !!\n");
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if (ioctl(tfd, QIOWRITE, &s) < 0) {
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perror("QIOWRITE");
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exit(1);
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}
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if (r) warnx("** warning: ecc problem !!");
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if (ioctl(tfd, QIOWRITE, &s) < 0)
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err(1, "QIOWRITE");
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tvsize += amt;
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}
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}
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@ -439,11 +441,9 @@ do_write(void)
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s.sg_badmap = 0;
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s.sg_data = (UCHAR *)hbuff;
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r = set_parity(s.sg_data, s.sg_badmap);
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if (r) fprintf(stderr, "** warning: header ecc problem !!\n");
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if (ioctl(tfd, QIOWRITE, &s) < 0) {
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perror("QIOWRITE");
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exit(1);
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}
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if (r) warnx("** warning: header ecc problem !!");
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if (ioctl(tfd, QIOWRITE, &s) < 0)
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err(1, "QIOWRITE");
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}
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if (dhsn >= 0) {
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s.sg_trk = dhsn / geo.g_segtrk;
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@ -451,11 +451,9 @@ do_write(void)
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s.sg_badmap = 0;
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s.sg_data = (UCHAR *)hbuff;
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r = set_parity(s.sg_data, s.sg_badmap);
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if (r) fprintf(stderr, "** warning: duphdr ecc problem !!\n");
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if (ioctl(tfd, QIOWRITE, &s) < 0) {
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perror("QIOWRITE");
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exit(1);
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}
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if (r) warnx("** warning: duphdr ecc problem !!");
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if (ioctl(tfd, QIOWRITE, &s) < 0)
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err(1, "QIOWRITE");
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}
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ioctl(tfd, QIOREWIND);
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if (tvlast) break;
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@ -467,10 +465,10 @@ do_write(void)
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/*
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* Entry.
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*/
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void
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int
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main(int argc, char *argv[])
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{
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int r, s, i;
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int i;
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char *tape, *getenv();
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@ -500,10 +498,8 @@ main(int argc, char *argv[])
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}
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/* Open the tape device */
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if ((tfd = open(tape, 2)) < 0) {
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perror(tape);
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exit(1);
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}
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if ((tfd = open(tape, 2)) < 0)
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err(1, "%s", tape);
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if (!isatty(0))
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do_write();
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@ -29,6 +29,12 @@
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* Modified slightly to fit with my driver. Based entirely upon David
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* L. Brown's package.
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*/
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#ifndef lint
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static const char rcsid[] =
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"$Id$";
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#endif /* not lint */
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#include <sys/ftape.h>
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/* Inverse matrix */
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