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Diffstat (limited to 'sbin/ft/ft.c')
-rw-r--r-- | sbin/ft/ft.c | 517 |
1 files changed, 0 insertions, 517 deletions
diff --git a/sbin/ft/ft.c b/sbin/ft/ft.c deleted file mode 100644 index 49aadd3331cc..000000000000 --- a/sbin/ft/ft.c +++ /dev/null @@ -1,517 +0,0 @@ -/* - * Copyright (c) 1993, 1994 Steve Gerakines - * - * This is freely redistributable software. You may do anything you - * wish with it, so long as the above notice stays intact. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``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 AUTHOR(S) 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. - * - * ft.c - simple floppy tape filter - * - * 06/07/94 v1.0 ++sg - * Added support for tape retension. Added retries for ecc failures. - * Moved to release. - * - * 01/28/94 v0.3b (Jim Babb) - * Fixed bug when all sectors in a segment are marked bad. - * - * 10/30/93 v0.3 - * Minor revisions. Seems pretty stable. - * - * 09/02/93 v0.2 pl01 - * Initial revision. - * - * usage: ft [ -f tape ] [ description ] - */ - -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <signal.h> -#include <time.h> -#include <sys/ftape.h> - -#define DEFQIC "/dev/rft0" - -char buff[QCV_SEGSIZE]; /* scratch buffer */ -char hbuff[QCV_SEGSIZE]; /* header buffer */ -QIC_Header *hptr = (QIC_Header *)hbuff; /* header structure */ -int hsn = -1; /* segment number of header */ -int dhsn = -1; /* segment number of duplicate header */ -int tfd; /* tape file descriptor */ -QIC_Geom geo; /* tape geometry */ -int tvno = 1; /* tape volume number */ -int tvlast; /* TRUE if last volume in set */ -long tvsize = 0; /* tape volume size in bytes */ -long tvtime = NULL; /* tape change time */ -char *tvnote = ""; /* tape note */ -int doretension = 0; /* TRUE if we should retension tape */ - -/* Lookup the badmap for a given track and segment. */ -#define BADMAP(t,s) hptr->qh_badmap[(t)*geo.g_segtrk+(s)] - -/* Retrieve values from a character array. */ -#define UL_VAL(s,p) (*((ULONG *)&(s)[p])) -#define US_VAL(s,p) (*((USHORT *)&(s)[p])) - -#define equal(s1,s2) (strcmp(s1, s2) == 0) - - -/* - * Print tape usage and then leave. - */ -void -usage(void) -{ - fprintf(stderr, "usage: ft [ -r ] [ -f device ] [ \"description\" ]\n"); - exit(1); -} - - -/* - * Check status of tape drive - */ -int -check_stat(int fd, int wr) -{ - int r, s; - int sawit = 0; - - /* get tape status */ - if (ioctl(fd, QIOSTATUS, &s) < 0) { - fprintf(stderr, "could not get drive status\n"); - return(1); - } - - /* wait for the tape drive to become ready */ - while ((s & QS_READY) == 0) { - if (!sawit) { - fprintf(stderr, "waiting for drive to become ready...\n"); - sawit = 1; - } - sleep(2); - if (ioctl(fd, QIOSTATUS, &s) < 0) { - fprintf(stderr, "could not get drive status\n"); - return(1); - } - } - - if ((s & QS_FMTOK) == 0) { - fprintf(stderr, "tape is not formatted\n"); - return(2); - } - - if (wr && (s & QS_RDONLY) != 0) { - fprintf(stderr, "tape is write protected\n"); - return(3); - } - - return(0); -} - - -/* - * Convert time_t value to QIC time value. - */ -ULONG -qtimeval(time_t t) -{ - struct tm *tp; - ULONG r; - - tp = localtime(&t); - r = 2678400 * tp->tm_mon + - 86400 *(tp->tm_mday-1) + - 3600 * tp->tm_hour + - 60 * tp->tm_min + - tp->tm_sec; - r |= (tp->tm_year - 70) << 25; - return(r); -} - - -/* - * Return tm struct from QIC date format. - */ -struct tm * -qtime(UCHAR *qt) -{ - ULONG *vp = (ULONG *)qt; - struct tm t; - ULONG v; - time_t tv; - - v = *vp; - t.tm_year = ((v >> 25) & 0x7f)+70; v &= 0x1ffffff; - t.tm_mon = v / 2678400; v %= 2678400; - t.tm_mday = v / 86400 + 1; v %= 86400; - t.tm_hour = v / 3600; v %= 3600; - t.tm_min = v / 60; v %= 60; - t.tm_sec = v; - t.tm_wday = 0; /* XXX - let mktime do the real work */ - t.tm_yday = 0; - t.tm_isdst = 0; - t.tm_gmtoff = 0; - t.tm_zone = NULL; - tv = mktime(&t); - return(localtime(&tv)); -} - - -/* - * Return a string, zero terminated. - */ -char *qstr(char *str, int nchar) -{ - static char tstr[256]; - strncpy(tstr, str, nchar); - tstr[nchar] = '\0'; - return(tstr); -} - - -/* - * Read header from tape - */ -int -get_header(int fd) -{ - int r, sn, bytes; - QIC_Segment s; - int gothdr = 0; - - if (ioctl(fd, QIOGEOM, &geo) < 0) { - fprintf(stderr, "couldn't determine tape geometry\n"); - return(1); - } - - /* Get the header and duplicate */ - for (sn = 0; sn < 16; sn++) { - s.sg_trk = 0; - s.sg_seg = sn; - s.sg_badmap = 0; - s.sg_data = (UCHAR *)&buff[0]; - ioctl(fd, QIOREAD, &s); - r = check_parity(s.sg_data, 0, s.sg_crcmap); - if (s.sg_data[0] == 0x55 && s.sg_data[1] == 0xaa && - s.sg_data[2] == 0x55 && s.sg_data[3] == 0xaa) { - if (hsn >= 0) { - dhsn = sn; - if (!r && !gothdr) { - fprintf(stderr, "using secondary header\n"); - bcopy(s.sg_data, hbuff, QCV_SEGSIZE); - gothdr = 1; - } - break; - } - hsn = sn; - if (!r) { - bcopy(s.sg_data, hbuff, QCV_SEGSIZE); - gothdr = 1; - } else { - fprintf(stderr, "too many errors in primary header\n"); - } - } - } - - if (!gothdr) { - fprintf(stderr, "couldn't read header segment\n"); - ioctl(fd, QIOREWIND); - return(1); - } - - return(0); -} - - -/* - * Open /dev/tty and ask for next volume. - */ -ask_vol(int vn) -{ - FILE *inp; - int fd; - char c; - - if ((fd = open("/dev/tty", 2)) < 0) { - fprintf(stderr, "argh!! can't open /dev/tty\n"); - exit(1); - } - - fprintf(stderr, "Insert ftfilt volume %02d and press enter:", vn); - read(fd, &c, 1); - close(fd); -} - - -/* - * Return the name of the tape only. - */ -void -do_getname(void) -{ - if (check_stat(tfd, 0)) exit(1); - if (get_header(tfd)) exit(1); - fprintf(stderr, "\"%s\" - %s", - qstr(hptr->qh_tname,44), asctime(qtime(hptr->qh_chgdate))); -} - - -/* - * Extract data from tape to stdout. - */ -void -do_read(void) -{ - int sno, vno, sbytes, r, eccfails; - long curpos; - char *hname; - QIC_Segment s; - - /* Process multiple volumes if necessary */ - vno = 1; - for (;;) { - if (check_stat(tfd, 0)) { - ask_vol(vno); - continue; - } - - if (doretension) { - ioctl(tfd, QIOBOT); - ioctl(tfd, QIOEOT); - ioctl(tfd, QIOBOT); - } - - if (get_header(tfd)) { - ask_vol(vno); - continue; - } - - /* extract volume and header info from label */ - hname = hptr->qh_tname; - hname[43] = '\0'; - tvno = atoi(&hname[11]); - tvlast = (hname[10] == '*') ? 1 : 0; - tvsize = atoi(&hname[14]); - tvnote = &hname[25]; - if (vno != tvno || strncmp(hname, "ftfilt", 6) != 0) { - fprintf(stderr, "Incorrect volume inserted. This tape is:\n"); - fprintf(stderr,"\"%s\" - %s\n", hname, - asctime(qtime(hptr->qh_chgdate))); - ask_vol(vno); - continue; - } - - /* Process this volume */ - curpos = 0; - eccfails = 0; - sno = hptr->qh_first; - while (tvsize > 0) { - s.sg_trk = sno / geo.g_segtrk; - s.sg_seg = sno % geo.g_segtrk; - s.sg_badmap = BADMAP(s.sg_trk,s.sg_seg); - sbytes = sect_bytes(s.sg_badmap) - QCV_ECCSIZE; - s.sg_data = (UCHAR *)&buff[0]; - if (sbytes <= 0) { - sno++; - continue; - } - if (ioctl(tfd, QIOREAD, &s) < 0) perror("QIOREAD"); - - if (check_parity(s.sg_data, s.sg_badmap, s.sg_crcmap)) { - if (++eccfails <= 5) { - fprintf(stderr, - "ft: retry %d at segment %d byte %ld\n", - eccfails, sno, curpos); - continue; - } else - fprintf(stderr, - "ft: *** ecc failure in segment %d at byte %ld\n", - sno, curpos); - } - if (tvsize < sbytes) sbytes = tvsize; - write(1, s.sg_data, sbytes); - tvsize -= sbytes; - curpos += sbytes; - sno++; - eccfails = 0; - } - if (tvlast) break; - ioctl(tfd, QIOREWIND); - ask_vol(++vno); - } -} - - -/* - * Dump data from stdin to tape. - */ -void -do_write(void) -{ - int sno, vno, amt, sbytes; - int c, maxseg, r; - ULONG qnow; - QIC_Segment s; - char tmpstr[80]; - - qnow = qtimeval(time(NULL)); - vno = 1; - - for (;;) { - if (check_stat(tfd, 1)) { - ask_vol(vno); - continue; - } - - if (doretension) { - ioctl(tfd, QIOBOT); - ioctl(tfd, QIOEOT); - ioctl(tfd, QIOBOT); - } - - if (get_header(tfd)) { - ask_vol(vno); - continue; - } - - maxseg = geo.g_segtrk * geo.g_trktape - 1; - sno = hptr->qh_first; - tvno = vno; - tvsize = 0; - tvlast = 0; - - /* Process until end of volume or end of data */ - for (sno = hptr->qh_first; sno < maxseg && tvlast == 0; ++sno) { - /* Prepare to load the next segment */ - s.sg_trk = sno / geo.g_segtrk; - s.sg_seg = sno % geo.g_segtrk; - s.sg_badmap = BADMAP(s.sg_trk,s.sg_seg); - sbytes = sect_bytes(s.sg_badmap) - QCV_ECCSIZE; - s.sg_data = (UCHAR *)&buff[0]; - - /* Ugh. Loop to get the full amt. */ - for (amt = 0; amt < sbytes; amt += r) { - r = read(0, &s.sg_data[amt], sbytes - amt); - if (r <= 0) { - tvlast = 1; - break; - } - } - - /* skip the segment if *all* sectors are flagged as bad */ - if (amt) { - if (amt < sbytes) - bzero(&s.sg_data[amt], sbytes - amt); - r = set_parity(s.sg_data, s.sg_badmap); - if (r) fprintf(stderr, "** warning: ecc problem !!\n"); - if (ioctl(tfd, QIOWRITE, &s) < 0) { - perror("QIOWRITE"); - exit(1); - } - tvsize += amt; - } - } - - /* Build new header info */ - /* ftfilt vol*xx yyyyyyyyyy note56789012345678 */ - /* 01234567890123456789012345678901234567890123 */ - - sprintf(tmpstr, "ftfilt vol%s%02d %010d %s", - (tvlast) ? "*" : " ", tvno, tvsize, tvnote); - strncpy(hptr->qh_tname, tmpstr, 44); - UL_VAL(hptr->qh_chgdate,0) = qnow; - - /* Update the header for this volume */ - if (hsn >= 0) { - s.sg_trk = hsn / geo.g_segtrk; - s.sg_seg = hsn % geo.g_segtrk; - s.sg_badmap = 0; - s.sg_data = (UCHAR *)hbuff; - r = set_parity(s.sg_data, s.sg_badmap); - if (r) fprintf(stderr, "** warning: header ecc problem !!\n"); - if (ioctl(tfd, QIOWRITE, &s) < 0) { - perror("QIOWRITE"); - exit(1); - } - } - if (dhsn >= 0) { - s.sg_trk = dhsn / geo.g_segtrk; - s.sg_seg = dhsn % geo.g_segtrk; - s.sg_badmap = 0; - s.sg_data = (UCHAR *)hbuff; - r = set_parity(s.sg_data, s.sg_badmap); - if (r) fprintf(stderr, "** warning: duphdr ecc problem !!\n"); - if (ioctl(tfd, QIOWRITE, &s) < 0) { - perror("QIOWRITE"); - exit(1); - } - } - ioctl(tfd, QIOREWIND); - if (tvlast) break; - ask_vol(++vno); - } -} - - -/* - * Entry. - */ -void -main(int argc, char *argv[]) -{ - int r, s, i; - char *tape, *getenv(); - - - /* Get device from environment, command line will override. */ - if ((tape = getenv("TAPE")) == NULL) tape = DEFQIC; - - /* Process args. */ - for (i = 1; i < argc; i++) { - if (argv[i][0] != '-') break; - switch (argv[i][1]) { - case 'f': - case 't': - if (i == (argc - 1)) usage(); - tape = argv[++i]; - break; - case 'r': - doretension = 1; - break; - default: - usage(); - } - } - if (i < (argc - 1)) usage(); - if (i < argc) { - tvnote = argv[i]; - if (strlen(tvnote) > 18) argv[i][18] = '\0'; - } - - /* Open the tape device */ - if ((tfd = open(tape, 2)) < 0) { - perror(tape); - exit(1); - } - - if (!isatty(0)) - do_write(); - else if (!isatty(1)) - do_read(); - else - do_getname(); - - close(tfd); - exit(0); -} |