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|
--- tapecopy.c.orig Thu Nov 29 13:53:46 2001
+++ tapecopy.c Thu Jan 31 13:26:01 2002
@@ -8,357 +8,18 @@
/* prints a summary of the tape files and blocksizes. */
/*-------------------------------------------------------------------*/
-#include "hercules.h"
-
-/*-------------------------------------------------------------------*/
-/* Structure definition for AWSTAPE block header */
-/*-------------------------------------------------------------------*/
-typedef struct _AWSTAPE_BLKHDR {
- HWORD curblkl; /* Length of this block */
- HWORD prvblkl; /* Length of previous block */
- BYTE flags1; /* Flags byte 1 */
- BYTE flags2; /* Flags byte 2 */
- } AWSTAPE_BLKHDR;
-
-/* Definitions for AWSTAPE_BLKHDR flags byte 1 */
-#define AWSTAPE_FLAG1_NEWREC 0x80 /* Start of new record */
-#define AWSTAPE_FLAG1_TAPEMARK 0x40 /* Tape mark */
-#define AWSTAPE_FLAG1_ENDREC 0x20 /* End of record */
-
-/*-------------------------------------------------------------------*/
-/* Static data areas */
-/*-------------------------------------------------------------------*/
-static BYTE vollbl[] = "\xE5\xD6\xD3"; /* EBCDIC characters "VOL" */
-static BYTE hdrlbl[] = "\xC8\xC4\xD9"; /* EBCDIC characters "HDR" */
-static BYTE eoflbl[] = "\xC5\xD6\xC6"; /* EBCDIC characters "EOF" */
-static BYTE eovlbl[] = "\xC5\xD6\xE5"; /* EBCDIC characters "EOV" */
-static struct mt_tape_info tapeinfo[] = MT_TAPE_INFO;
-static struct mt_tape_info densinfo[] = {
- {0x01, "NRZI (800 bpi)"},
- {0x02, "PE (1600 bpi)"},
- {0x03, "GCR (6250 bpi)"},
- {0x05, "QIC-45/60 (GCR, 8000 bpi)"},
- {0x06, "PE (3200 bpi)"},
- {0x07, "IMFM (6400 bpi)"},
- {0x08, "GCR (8000 bpi)"},
- {0x09, "GCR /37871 bpi)"},
- {0x0A, "MFM (6667 bpi)"},
- {0x0B, "PE (1600 bpi)"},
- {0x0C, "GCR (12960 bpi)"},
- {0x0D, "GCR (25380 bpi)"},
- {0x0F, "QIC-120 (GCR 10000 bpi)"},
- {0x10, "QIC-150/250 (GCR 10000 bpi)"},
- {0x11, "QIC-320/525 (GCR 16000 bpi)"},
- {0x12, "QIC-1350 (RLL 51667 bpi)"},
- {0x13, "DDS (61000 bpi)"},
- {0x14, "EXB-8200 (RLL 43245 bpi)"},
- {0x15, "EXB-8500 (RLL 45434 bpi)"},
- {0x16, "MFM 10000 bpi"},
- {0x17, "MFM 42500 bpi"},
- {0x24, "DDS-2"},
- {0x8C, "EXB-8505 compressed"},
- {0x90, "EXB-8205 compressed"},
- {0, NULL}};
-static BYTE buf[65500];
-
-/*-------------------------------------------------------------------*/
-/* ASCII to EBCDIC translate tables */
-/*-------------------------------------------------------------------*/
-#include "codeconv.h"
-
-/*-------------------------------------------------------------------*/
-/* Subroutine to print tape status */
-/*-------------------------------------------------------------------*/
-static void print_status (BYTE *devname, long stat)
-{
- printf ("%s status: %8.8lX", devname, stat);
- if (GMT_EOF(stat)) printf (" EOF");
- if (GMT_BOT(stat)) printf (" BOT");
- if (GMT_EOT(stat)) printf (" EOT");
- if (GMT_SM(stat)) printf (" SETMARK");
- if (GMT_EOD(stat)) printf (" EOD");
- if (GMT_WR_PROT(stat)) printf (" WRPROT");
- if (GMT_ONLINE(stat)) printf (" ONLINE");
- if (GMT_D_6250(stat)) printf (" 6250");
- if (GMT_D_1600(stat)) printf (" 1600");
- if (GMT_D_800(stat)) printf (" 800");
- if (GMT_DR_OPEN(stat)) printf (" NOTAPE");
- printf ("\n");
-
-} /* end function print_status */
-
-/*-------------------------------------------------------------------*/
-/* Subroutine to obtain and print tape status */
-/* Return value: 0=normal, 1=end of tape, -1=error */
-/*-------------------------------------------------------------------*/
-static int obtain_status (BYTE *devname, int devfd)
-{
-int rc; /* Return code */
-struct mtget stblk; /* Area for MTIOCGET ioctl */
-
- rc = ioctl (devfd, MTIOCGET, (char*)&stblk);
- if (rc < 0)
- {
- printf ("tapecopy: Error reading status of %s: %s\n",
- devname, strerror(errno));
- return -1;
- }
-
- print_status (devname, stblk.mt_gstat);
-
- if (GMT_EOD(stblk.mt_gstat)) return 1;
- if (GMT_EOT(stblk.mt_gstat)) return 1;
-
- return 0;
-} /* end function print_status */
/*-------------------------------------------------------------------*/
/* TAPECOPY main entry point */
/*-------------------------------------------------------------------*/
int main (int argc, char *argv[])
{
-int rc; /* Return code */
-int i; /* Array subscript */
-int len; /* Block length */
-int prevlen; /* Previous block length */
-BYTE *devname; /* -> Tape device name */
-BYTE *filename; /* -> Output file name */
-int devfd; /* Tape file descriptor */
-int outfd = -1; /* Output file descriptor */
-int fileno; /* Tape file number */
-int blkcount; /* Block count */
-int minblksz; /* Minimum block size */
-int maxblksz; /* Maximum block size */
-struct mtop opblk; /* Area for MTIOCTOP ioctl */
-struct mtget stblk; /* Area for MTIOCGET ioctl */
-long density; /* Tape density code */
-BYTE labelrec[81]; /* Standard label (ASCIIZ) */
-AWSTAPE_BLKHDR awshdr; /* AWSTAPE block header */
-
- /* Display the program identification message */
- display_version (stderr, "Hercules tape copy program ");
-
- /* The first argument is the tape device name */
- if (argc > 1 && argv[1] != NULL && strlen(argv[1]) > 5
- && memcmp (argv[1], "/dev/", 5) == 0)
- {
- devname = argv[1];
- }
- else
- {
- printf ("Usage: tapecopy /dev/st0 [outfile]\n");
- exit (1);
- }
-
- /* The second argument is the output file name */
- if (argc > 2 && argv[2] != NULL)
- filename = argv[2];
- else
- filename = NULL;
-
- /* Open the tape device */
- devfd = open (devname, O_RDONLY|O_BINARY);
- if (devfd < 0)
- {
- printf ("tapecopy: Error opening %s: %s\n",
- devname, strerror(errno));
- exit (3);
- }
- /* Obtain the tape status */
- rc = ioctl (devfd, MTIOCGET, (char*)&stblk);
- if (rc < 0)
- {
- printf ("tapecopy: Error reading status of %s: %s\n",
- devname, strerror(errno));
- exit (7);
- }
- /* Display tape status information */
- for (i = 0; tapeinfo[i].t_type != 0
- && tapeinfo[i].t_type != stblk.mt_type; i++);
-
- if (tapeinfo[i].t_name != NULL)
- printf ("%s device type: %s\n", devname, tapeinfo[i].t_name);
- else
- printf ("%s device type: 0x%lX\n", devname, stblk.mt_type);
-
- density = (stblk.mt_dsreg & MT_ST_DENSITY_MASK)
- >> MT_ST_DENSITY_SHIFT;
-
- for (i = 0; densinfo[i].t_type != 0
- && densinfo[i].t_type != density; i++);
-
- if (densinfo[i].t_name != NULL)
- printf ("%s tape density: %s\n", devname, densinfo[i].t_name);
- else
- printf ("%s tape density code: 0x%lX\n", devname, density);
-
- if (stblk.mt_gstat != 0)
- {
- print_status (devname, stblk.mt_gstat);
- }
-
- /* Set the tape device to process variable length blocks */
- opblk.mt_op = MTSETBLK;
- opblk.mt_count = 0;
- rc = ioctl (devfd, MTIOCTOP, (char*)&opblk);
- if (rc < 0)
- {
- printf ("tapecopy: Error setting attributes for %s: %s\n",
- devname, strerror(errno));
- exit (5);
- }
-
- /* Rewind the tape to the beginning */
- opblk.mt_op = MTREW;
- opblk.mt_count = 1;
- rc = ioctl (devfd, MTIOCTOP, (char*)&opblk);
- if (rc < 0)
- {
- printf ("tapecopy: Error rewinding %s: %s\n",
- devname, strerror(errno));
- exit (6);
- }
-
- /* Open the output file */
- if (filename != NULL)
- {
- outfd = open (filename, O_WRONLY | O_CREAT | O_BINARY,
- S_IRUSR | S_IWUSR | S_IRGRP);
- if (outfd < 0)
- {
- printf ("tapecopy: Error opening %s: %s\n",
- filename, strerror(errno));
- exit (4);
- }
- }
-
- /* Copy blocks from tape to the output file */
- fileno = 1;
- blkcount = 0;
- minblksz = 0;
- maxblksz = 0;
- len = 0;
-
- while (1)
- {
- /* Save previous block length */
- prevlen = len;
-
- /* Read a block from the tape */
- len = read (devfd, buf, sizeof(buf));
- if (len < 0)
- {
- printf ("tapecopy: Error reading %s: %s\n",
- devname, strerror(errno));
- obtain_status (devname, devfd);
- exit (8);
- }
-
- /* Check for tape mark */
- if (len == 0)
- {
- /* Print summary of current file */
- printf ("File %u: Blocks=%u, block size min=%u, max=%u\n",
- fileno, blkcount, minblksz, maxblksz);
-
- /* Write tape mark to output file */
- if (outfd >= 0)
- {
- /* Build block header for tape mark */
- awshdr.curblkl[0] = 0;
- awshdr.curblkl[1] = 0;
- awshdr.prvblkl[0] = prevlen & 0xFF;
- awshdr.prvblkl[1] = (prevlen >> 8) & 0xFF;
- awshdr.flags1 = AWSTAPE_FLAG1_TAPEMARK;
- awshdr.flags2 = 0;
-
- /* Write block header to output file */
- rc = write (outfd, &awshdr, sizeof(AWSTAPE_BLKHDR));
- if (rc < sizeof(AWSTAPE_BLKHDR))
- {
- printf ("tapecopy: Error writing %s: %s\n",
- filename, strerror(errno));
- exit (9);
- } /* end if(rc) */
-
- } /* end if(outfd) */
-
- /* Reset counters for next file */
- fileno++;
- minblksz = 0;
- maxblksz = 0;
- blkcount = 0;
-
- /* Determine whether end of tape has been read */
- rc = obtain_status (devname, devfd);
- if (rc == 0) continue;
- if (rc > 0) printf ("End of tape\n");
- break;
-
- } /* end if(tapemark) */
-
- /* Count blocks and block sizes */
- blkcount++;
- if (len > maxblksz) maxblksz = len;
- if (minblksz == 0 || len < minblksz) minblksz = len;
-
- /* Print standard labels */
- if (len == 80 && blkcount < 4
- && (memcmp(buf, vollbl, 3) == 0
- || memcmp(buf, hdrlbl, 3) == 0
- || memcmp(buf, eoflbl, 3) == 0
- || memcmp(buf, eovlbl, 3) == 0))
- {
- for (i=0; i < 80; i++)
- labelrec[i] = ebcdic_to_ascii[buf[i]];
- labelrec[i] = '\0';
- printf ("%s\n", labelrec);
- }
- else
- {
- printf ("File %u: Block %u\r", fileno, blkcount);
- }
-
- /* Write block to output file */
- if (outfd >= 0)
- {
- /* Build the block header */
- awshdr.curblkl[0] = len & 0xFF;
- awshdr.curblkl[1] = (len >> 8) & 0xFF;
- awshdr.prvblkl[0] = prevlen & 0xFF;
- awshdr.prvblkl[1] = (prevlen >> 8) & 0xFF;
- awshdr.flags1 = AWSTAPE_FLAG1_NEWREC
- | AWSTAPE_FLAG1_ENDREC;
- awshdr.flags2 = 0;
-
- /* Write block header to output file */
- rc = write (outfd, &awshdr, sizeof(AWSTAPE_BLKHDR));
- if (rc < sizeof(AWSTAPE_BLKHDR))
- {
- printf ("tapecopy: Error writing %s: %s\n",
- filename, strerror(errno));
- exit (10);
- } /* end if(rc) */
-
- /* Write data block to output file */
- rc = write (outfd, buf, len);
- if (rc < len)
- {
- printf ("tapecopy: Error writing %s: %s\n",
- filename, strerror(errno));
- exit (11);
- } /* end if(rc) */
-
- } /* end if(outfd) */
-
- } /* end while */
-
- /* Close files and exit */
- close (devfd);
- if (filename != NULL) close (outfd);
+ /* Display the program identification message */
+
+ printf("Tape copy is broken, sorry\n");
return 0;
} /* end function main */
|
