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File cpio-mt.patch of Package cpio (Revision c6e5a067ff51351e956a5720695a94e4)

Currently displaying revision c6e5a067ff51351e956a5720695a94e4 , Show latest

Index: doc/mt.1
===================================================================
--- doc/mt.1.orig
+++ doc/mt.1
@@ -76,9 +76,6 @@ Absolute space to file number
 .IR count .
 Equivalent to rewind followed by fsf
 .IR count .
-.IP seek
-Seek to block number
-.IR count .
 .IP eom
 Space to the end of the recorded media on the tape
 (for appending files onto tapes).
@@ -93,6 +90,69 @@ Rewind the tape, then wind it to the end
 then rewind it again.
 .IP erase
 Erase the tape.
+.IP fss
+(SCSI tapes) Forward space
+.I count
+setmarks.
+.IP bss
+(SCSI tapes) Backward space
+.I count
+setmarks.
+.IP "wset"
+(SCSI tapes) Write
+.I count
+setmarks at current position (only SCSI tape).
+.IP "eod, seod"
+Space to end of valid data.  Used on streamer tape
+drives to append data to the logical and of tape.
+.IP setblk
+(SCSI tapes) Set the block size of the drive to
+.I count
+bytes per record.
+.IP setdensity
+(SCSI tapes) Set the tape density code to
+.I count.
+The proper codes to use with each drive should be looked up from the
+drive documentation.
+.IP drvbuffer
+(SCSI tapes) Set the tape drive buffer code to
+.I number.
+The proper value for unbuffered operation is zero and "normal" buffered
+operation one. The meanings of other values can be found in the drive
+documentation or, in case of a SCSI-2 drive, from the SCSI-2 standard.
+.IP stoptions
+(SCSI tapes) Set the driver options bits to
+.I count
+for the device.
+The bits can be set by oring the following values: 1 to enable write
+buffering, 2 to enable asynchronous writes, 4 to enable read ahead,
+8 to enable debugging output (if it has been compiled to the driver).
+.IP stwrthreshold
+(SCSI tapes) The write threshold for the tape device is set to
+.I count
+kilobytes. The value must be smaller than or equal to the driver
+buffer size.
+.IP seek
+(SCSI tapes) Seek to the
+.I count
+block on the tape.  This operation is available on some
+Tandberg and Wangtek streamers and some SCSI-2 tape drives.
+.IP tell
+(SCSI tapes) Tell the current block on tape.  This operation is available on some
+Tandberg and Wangtek streamers and some SCSI-2 tape drives.
+.IP densities
+(SCSI tapes) Write explanation of some common density codes to
+standard output.
+.IP datcompression
+(some SCSI-2 DAT tapes) Inquire or set the compression status
+(on/off). If the
+.I count
+is one the compression status is printed. If the
+.I count
+is zero, compression is disabled. Otherwise, compression is
+enabled. The command uses the SCSI ioctl to read and write the Data
+Compression Characteristics mode page (15). ONLY ROOT CAN USE THIS
+COMMAND.
 .PP
 .B mt
 exits with a status of 0 if the operation succeeded, 1 if the
Index: lib/system.h
===================================================================
--- lib/system.h.orig
+++ lib/system.h
@@ -431,10 +431,11 @@ char *getenv ();
 
 #if HAVE_LOCALE_H
 # include <locale.h>
-#endif
+#else 
 #if !HAVE_SETLOCALE
 # define setlocale(category, locale) /* empty */
 #endif
+#endif
 
 #include <time.h>
 #ifdef TIME_WITH_SYS_TIME
Index: src/Makefile.am
===================================================================
--- src/Makefile.am.orig
+++ src/Makefile.am
@@ -19,7 +19,7 @@
 
 INCLUDES=-I. -I.. -I$(top_srcdir)/gnu -I$(top_builddir)/gnu  -I$(top_srcdir)/lib -I$(top_builddir)/lib
 
-bin_PROGRAMS=cpio @CPIO_MT_PROG@
+bin_PROGRAMS=cpio mt
 EXTRA_PROGRAMS=mt
 
 cpio_SOURCES = \
Index: src/copyin.c
===================================================================
--- src/copyin.c.orig
+++ src/copyin.c
@@ -689,7 +689,7 @@ copyin_link(struct cpio_file_stat *file_
 static void
 copyin_file (struct cpio_file_stat *file_hdr, int in_file_des)
 {
-  int existing_dir;
+  int existing_dir=0;
 
   if (!to_stdout_option
       && try_existing_file (file_hdr, in_file_des, &existing_dir) < 0)
@@ -1278,6 +1278,7 @@ process_copy_in ()
   int in_file_des;		/* Input file descriptor.  */
   char skip_file;		/* Flag for use with patterns.  */
   int i;			/* Loop index variable.  */
+  int lastpattern = 0;
 
   newdir_umask = umask (0);     /* Reset umask to preserve modes of
 				   created files  */
@@ -1386,8 +1387,10 @@ process_copy_in ()
 	  for (i = 0; i < num_patterns
 	       && skip_file == copy_matching_files; i++)
 	    {
-	      if (fnmatch (save_patterns[i], file_hdr.c_name, 0) == 0)
+	      if (fnmatch (save_patterns[lastpattern], file_hdr.c_name, 0) == 0)
 		skip_file = !copy_matching_files;
+	      else if (++lastpattern >= num_patterns)
+		lastpattern = 0;
 	    }
 	}
 
Index: src/mt.c
===================================================================
--- src/mt.c.orig
+++ src/mt.c
@@ -18,6 +18,10 @@
    02110-1301 USA
 */
 
+/* Modified for the Linux SCSI tape driver by Brian Mays from code
+   written by Kai Makisara.
+   Last Modified: Tue Apr 23 15:37:54 EDT 1996
+*/
 
 /* If -f is not given, the environment variable TAPE is used;
    if that is not set, a default device defined in sys/mtio.h is used.
@@ -52,9 +56,51 @@
    retension	Rewind the tape, then wind it to the end of the reel,
 		then rewind it again.
    erase	Erase the tape.
+   fss		(SCSI tapes) Forward space COUNT setmarks.
+   bss		(SCSI tapes) Backward space COUNT setmarks.
+   wset		(SCSI tapes) Write COUNT setmarks at current position
+		(only SCSI tape).
+   eod, seod	Space to end of valid data.  Used on streamer tape
+		drives to append data to the logical and of tape.
+   setblk	(SCSI tapes) Set the block size of the drive to COUNT
+		bytes per record.
+   setdensity	(SCSI tapes) Set the tape density code to COUNT.  The
+		proper codes to use with each drive should be looked
+		up from the drive documentation.
+   drvbuffer	(SCSI tapes) Set the tape drive buffer code to
+		NUMBER.  The proper value for unbuffered operation is
+		zero and "normal" buffered operation one. The meanings
+		of other values can be found in the drive
+		documentation or, in case of a SCSI-2 drive, from the
+		SCSI-2 standard.
+   stoptions	(SCSI tapes) Set the driver options bits to COUNT for
+		the device.  The bits can be set by oring the
+		following values: 1 to enable write buffering, 2 to
+		enable asynchronous writes, 4 to enable read ahead, 8
+		to enable debugging output (if it has been compiled to
+		the driver).
+   stwrthreshold 
+		(SCSI tapes) The write threshold for the tape device
+		is set to COUNT kilobytes.  The value must be smaller
+		than or equal to the driver buffer size.
+   seek		(SCSI tapes) Seek to the COUNT block on the tape.
+		This operation is available on some Tandberg and
+		Wangtek streamers and some SCSI-2 tape drives.
+   tell		(SCSI tapes) Tell the current block on tape.  This
+		operation is available on some Tandberg and Wangtek
+		streamers and some SCSI-2 tape drives.
+   densities	(SCSI tapes) Write explanation of some common density
+		codes to standard output.
+   datcompression
+		(some SCSI-2 DAT tapes) Inquire or set the compression
+		status (on/off).  If the COUNT is one the compression
+		status is printed.  If the COUNT is zero, compression
+		is disabled.  Otherwise, compression is enabled.
 
    David MacKenzie <djm@gnu.ai.mit.edu> */
 
+#include <configmake.h>
+
 #include <system.h>
 
 #include <stdio.h>
@@ -90,6 +136,110 @@
 #define MT_EXIT_INVOP   1
 #define MT_EXIT_FAILURE 2
 
+#if defined(linux) || defined(__linux)
+#define MTDATCOMP 1000         /* Random unused number.  */
+#define MTDENS 1001            /* Random unused number.  */
+
+struct densities {
+  int code;
+  char *name;
+} density_tbl[] = {
+  {0x00, "default"},
+  {0x01, "NRZI (800 bpi)"},
+  {0x02, "PE (1600 bpi)"},
+  {0x03, "GCR (6250 bpi)"},
+  {0x04, "QIC-11"},
+  {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"},
+  {0x18, "TZ86"},
+  {0x19, "DLT 10GB"},
+  {0x1a, "DLT 20GB"},
+  {0x1b, "DLT 35GB"},
+  {0x1c, "QIC-385M"},
+  {0x1d, "QIC-410M"},
+  {0x1e, "QIC-1000C"},
+  {0x1f, "QIC-2100C"},
+  {0x20, "QIC-6GB"},
+  {0x21, "QIC-20GB"},
+  {0x22, "QIC-2GB"},
+  {0x23, "QIC-875"},
+  {0x24, "DDS-2"},
+  {0x25, "DDS-3"},
+  {0x26, "DDS-4 or QIC-4GB"},
+  {0x27, "Exabyte Mammoth"},
+  {0x28, "Exabyte Mammoth-2"},
+  {0x29, "QIC-3080MC"},
+  {0x30, "AIT-1 or MLR3"},
+  {0x31, "AIT-2"},
+  {0x32, "AIT-3"},
+  {0x33, "SLR6"},
+  {0x34, "SLR100"},
+  {0x40, "DLT1 40 GB, or Ultrium"},
+  {0x41, "DLT 40GB, or Ultrium2"},
+  {0x42, "LTO-2"},
+  {0x45, "QIC-3095-MC (TR-4)"},
+  {0x47, "TR-5"},
+  {0x48, "DAT160"},
+  {0x80, "DLT 15GB uncomp. or Ecrix"},
+  {0x81, "DLT 15GB compressed"},
+  {0x82, "DLT 20GB uncompressed"},
+  {0x83, "DLT 20GB compressed"},
+  {0x84, "DLT 35GB uncompressed"},
+  {0x85, "DLT 35GB compressed"},
+  {0x86, "DLT1 40 GB uncompressed"},
+  {0x87, "DLT1 40 GB compressed"},
+  {0x88, "DLT 40GB uncompressed"},
+  {0x89, "DLT 40GB compressed"},
+  {0x8c, "EXB-8505 compressed"},
+  {0x90, "SDLT110 uncompr/EXB-8205 compr"},
+  {0x91, "SDLT110 compressed"},
+  {0x92, "SDLT160 uncompressed"},
+  {0x93, "SDLT160 comprssed"},
+  {-1, NULL}};
+#endif
+
+char *cbnames[] =
+{
+#ifdef MT_ST_BOOLEANS
+  "stoptions",
+#endif
+#ifdef MT_ST_WRITE_THRESHOLD
+  "stwrthreshold",
+#endif
+  NULL
+};
+
+int count_bits[] =
+{
+#ifdef MT_ST_BOOLEANS
+  MT_ST_BOOLEANS,
+#endif
+#ifdef MT_ST_WRITE_THRESHOLD
+  MT_ST_WRITE_THRESHOLD,
+#endif
+  0
+};
+
+#ifdef MT_TAPE_INFO
+  struct mt_tape_info tapes[] = MT_TAPE_INFO;
+#endif
+
 char const * const opnames[] =
 {
   "eof",
@@ -108,6 +258,8 @@ char const * const opnames[] =
 #endif
 #ifdef MTEOM
   "eom",
+  "eod",
+  "seod",
 #endif
 #ifdef MTRETEN
   "retension",
@@ -122,6 +274,39 @@ char const * const opnames[] =
 #ifdef MTSEEK
   "seek",
 #endif
+#ifdef MTTELL
+  "tell",
+#endif
+#ifdef MTFSS
+  "fss",
+#endif
+#ifdef MTBSS
+  "bss",
+#endif
+#ifdef MTWSM
+  "wset",
+#endif
+#ifdef MTSETBLK
+  "setblk",
+#endif
+#ifdef MTSETDENSITY
+  "setdensity",
+#endif
+#ifdef MTSETDRVBUFFER
+  "drvbuffer",
+#ifdef MT_ST_BOOLEANS
+  "stoptions",
+#endif
+#ifdef MT_ST_WRITE_THRESHOLD
+  "stwrthreshold",
+#endif
+#endif
+#ifdef MTDATCOMP
+  "datcompression",
+#endif
+#ifdef MTDENS
+  "densities",
+#endif
   NULL
 };
 
@@ -144,6 +329,8 @@ short operations[] =
 #endif
 #ifdef MTEOM
   MTEOM,
+  MTEOM,
+  MTEOM,
 #endif
 #ifdef MTRETEN
   MTRETEN,
@@ -158,6 +345,39 @@ short operations[] =
 #ifdef MTSEEK
   MTSEEK,
 #endif
+#ifdef MTTELL
+  MTTELL,
+#endif
+#ifdef MTFSS
+  MTFSS,
+#endif
+#ifdef MTBSS
+  MTBSS,
+#endif
+#ifdef MTWSM
+  MTWSM,
+#endif
+#ifdef MTSETBLK
+  MTSETBLK,
+#endif
+#ifdef MTSETDENSITY
+  MTSETDENSITY,
+#endif
+#ifdef MTSETDRVBUFFER
+  MTSETDRVBUFFER,
+#ifdef MT_ST_BOOLEANS
+  MTSETDRVBUFFER,
+#endif
+#ifdef MT_ST_WRITE_THRESHOLD
+  MTSETDRVBUFFER,
+#endif
+#endif
+#ifdef MTDATCOMP
+  MTDATCOMP,
+#endif
+#ifdef MTDENS
+  MTDENS,
+#endif
 };
 
 ARGMATCH_VERIFY (opnames, operations);
@@ -286,10 +506,23 @@ void
 print_status (char *dev, int desc)
 {
   struct mtget status;
-
+  #ifdef MT_TAPE_INFO
+    struct mt_tape_info *mt;
+  #endif
+ 
   if (rmtioctl (desc, MTIOCGET, (char*)&status) == -1)
     error (MT_EXIT_FAILURE, errno, _("%s: rmtioctl failed"), dev);
 
+  #ifdef MT_TAPE_INFO
+    for (mt = tapes; mt->t_type; mt++)
+      if (mt->t_type == status.mt_type) break;
+    if (mt->t_type != 0)
+      {
+        printf ("drive type = %s\n", mt->t_name);
+      }
+    else
+  #endif
+ 
   printf ("drive type = %d\n", (int) status.mt_type);
 #if defined(hpux) || defined(__hpux)
   printf ("drive status (high) = %d\n", (int) status.mt_dsreg1);
@@ -303,7 +536,177 @@ print_status (char *dev, int desc)
   printf ("file number = %d\n", (int) status.mt_fileno);
   printf ("block number = %d\n", (int) status.mt_blkno);
 #endif
+#if defined(linux) || defined(__linux)
+  if (status.mt_type == MT_ISSCSI1 ||
+      status.mt_type == MT_ISSCSI2)
+    {
+      int dens, i;
+      char *density;
+      dens = (status.mt_dsreg & MT_ST_DENSITY_MASK) >> MT_ST_DENSITY_SHIFT;
+      density = "unknown";
+      for (i=0; density_tbl[i].code >= 0; i++)
+       if (density_tbl[i].code == dens)
+         {
+           density = density_tbl[i].name;
+           break;
+         }
+      printf("Tape block size %ld bytes. Density code 0x%x (%s).\n",
+            ((status.mt_dsreg & MT_ST_BLKSIZE_MASK) >> MT_ST_BLKSIZE_SHIFT),
+            dens, density);
+
+      printf("Soft error count since last status=%ld\n",
+            (status.mt_erreg & MT_ST_SOFTERR_MASK) >> MT_ST_SOFTERR_SHIFT);
+      printf("General status bits on (%lx):\n", status.mt_gstat);
+      if (GMT_EOF(status.mt_gstat))
+       printf(" EOF");
+      if (GMT_BOT(status.mt_gstat))
+       printf(" BOT");
+      if (GMT_EOT(status.mt_gstat))
+       printf(" EOT");
+      if (GMT_SM(status.mt_gstat))
+       printf(" SM");
+      if (GMT_EOD(status.mt_gstat))
+       printf(" EOD");
+      if (GMT_WR_PROT(status.mt_gstat))
+       printf(" WR_PROT");
+      if (GMT_ONLINE(status.mt_gstat))
+       printf(" ONLINE");
+      if (GMT_D_6250(status.mt_gstat))
+       printf(" D_6250");
+      if (GMT_D_1600(status.mt_gstat))
+       printf(" D_1600");
+      if (GMT_D_800(status.mt_gstat))
+       printf(" D_800");
+      if (GMT_DR_OPEN(status.mt_gstat))
+       printf(" DR_OPEN");
+      if (GMT_IM_REP_EN(status.mt_gstat))
+       printf(" IM_REP_EN");
+      if (status.mt_gstat != 0)
+	putchar ('\n');
+    }
+  else
+    {
+      printf("gstat = %0lx\n", status.mt_gstat);
+    }
+#endif
+}
+
+
+#if defined(linux) || defined(__linux)
+/*** Get and set the DAT compression (Mode Page 15) ***/
+
+#define MODE_SENSE 0x1a
+#define MODE_SELECT 0x15
+
+int
+read_mode_page(int fn, int page, int length, unsigned char *buffer,
+              int do_mask)
+{
+  int result, *ip;
+  unsigned char tmpbuffer[30], *cmd;
+
+  memset(tmpbuffer, 0, 14);
+  ip = (int *)&(tmpbuffer[0]);
+  *ip = 0;
+  *(ip+1) = length + 4;
+
+  cmd = &(tmpbuffer[8]);
+  cmd[0] = MODE_SENSE;
+  cmd[1] = 8;
+  cmd[2] = page;
+  if (do_mask)
+    cmd[2] |= 0x40;  /* Get changeable parameter mask */
+  cmd[4] = length + 4;
+
+  result = ioctl(fn, 1, tmpbuffer);
+  if (result) {
+    fprintf(stderr, "Can't read mode page. Are you sure you are root?\n");
+    return 0;
+  }
+  memcpy(buffer, tmpbuffer + 8, length + 4);
+  return 1;
+}
+
+
+int
+write_mode_page(int fn, int page, int length, unsigned char *buffer)
+{
+  int result, *ip;
+  unsigned char tmpbuffer[40], *cmd;
+
+  memset(tmpbuffer, 0, 14);
+  ip = (int *)&(tmpbuffer[0]);
+  *ip = length + 4;
+  *(ip+1) = 0;
+
+  cmd = &(tmpbuffer[8]);
+  cmd[0] = MODE_SELECT;
+  cmd[1] = 0x10;
+  cmd[4] = length + 4;
+
+  memcpy(tmpbuffer + 14, buffer, length + 4);
+  tmpbuffer[14] = 0;  /* reserved data length */
+  tmpbuffer[18] &= 0x3f;  /* reserved bits in page code byte */
+
+  result = ioctl(fn, 1, tmpbuffer);
+  if (result) {
+    fprintf(stderr, "Can't write mode page.\n");
+    return 0;
+  }
+  return 1;
+}
+
+
+int
+do_dat_compression(char *dev, int fn, int count)
+{
+  int i;
+  unsigned char buffer[30], mask[30];
+
+  if (!read_mode_page(fn, 0x0f, 16, buffer, 0)) {
+    error (2, errno, "%s", dev);
+  }
+
+  if (count != -1) {
+    if (count == 0)
+      buffer[4+2] &= 0x7f;
+    else
+      buffer[4+2] |= 0x80;
+/*    if (read_mode_page(fn, 0x0f, 16, mask, 1))
+      for (i=3; i < 16; i++)
+       buffer[4+i] |= mask[4+i];                bug #223494 */
+    if (!write_mode_page(fn, 0x0f, 16, buffer)) {
+      error (2, errno, "%s", dev);
+    }
+    if (!read_mode_page(fn, 0x0f, 16, buffer, 0)) {  /* Re-read to check */
+      error (2, errno, "%s", dev);
+    }
+  }
+
+  if (buffer[4+2] & 0x80)
+    printf("Compression on.\n");
+  else
+    printf("Compression off.\n");
+
+  return 1;
+}
+#endif
+
+#ifdef MTTELL
+void
+print_position (dev, desc)
+     char *dev;
+     int desc;
+{
+  struct mtpos position;
+
+  if (rmtioctl (desc, MTIOCPOS, &position) == -1)
+    error (2, errno, "%s", dev);
+  printf("At block %ld.\n", position.mt_blkno);
+
 }
+#endif
+
 
 void
 fatal_exit ()
@@ -314,7 +717,7 @@ fatal_exit ()
 int
 main (int argc, char **argv)
 {
-  int tapedesc;
+  int tapedesc,i;
 
   setlocale (LC_ALL, "");
   bindtextdomain (PACKAGE, LOCALEDIR);
@@ -327,13 +730,32 @@ main (int argc, char **argv)
   if (argp_parse (&argp, argc, argv, ARGP_IN_ORDER, NULL, NULL))
     exit (MT_EXIT_INVOP);
 
+#ifdef MTDENS
+  if (operation == MTDENS)
+    {
+      printf("Some SCSI tape density codes:\ncode   explanation\n");
+      for (i=0; density_tbl[i].code >= 0; i++)
+	printf("0x%02x   %s\n", density_tbl[i].code, density_tbl[i].name);
+      exit (0);
+    }
+#endif
+
   switch (operation)
     {
     case MTWEOF:
 #ifdef MTERASE
     case MTERASE:
 #endif
-      tapedesc = rmtopen (tapedev, O_WRONLY, 0, rsh_command_option);
+#ifdef MTWSM
+    case MTWSM:
+#endif
+#ifdef MTSETDRVBUFFER
+    case MTSETDRVBUFFER:
+#endif
+#ifdef MTDATCOMP
+	case MTDATCOMP:
+#endif
+       tapedesc = rmtopen (tapedev, O_WRONLY, 0, rsh_command_option);
       break;
 
     default:
@@ -344,6 +766,17 @@ main (int argc, char **argv)
     error (MT_EXIT_INVOP, errno, _("%s: rmtopen failed"), tapedev);
   check_type (tapedev, tapedesc);
 
+#ifdef MTDATCOMP
+  if (operation == MTDATCOMP)
+    do_dat_compression(tapedev, tapedesc, count);
+  else
+#endif
+#ifdef MTTELL
+  if (operation == MTTELL)
+    print_position (tapedev, tapedesc);
+  else
+#endif
+  {
   if (operation == MTASF)
     {
       perform_operation (tapedev, tapedesc, MTREW, 1);
@@ -352,6 +785,7 @@ main (int argc, char **argv)
   perform_operation (tapedev, tapedesc, operation, count);
   if (operation == MTNOP)
     print_status (tapedev, tapedesc);
+  }
 
   if (rmtclose (tapedesc) == -1)
     error (MT_EXIT_FAILURE, errno, _("%s: rmtclose failed"), tapedev);

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File cpio-mt.patch of Package cpio (Revision c6e5a067ff51351e956a5720695a94e4)

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