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/* DASDINIT.C (c) Copyright Roger Bowler, 1999-2009 */
/* Hercules DASD Utilities: DASD image builder */
/*-------------------------------------------------------------------*/
/* This program creates a disk image file and initializes it as */
/* a blank FBA or CKD DASD volume. */
/* */
/* The program is invoked from the shell prompt using the command: */
/* */
/* dasdinit [-options] filename devtype[-model] [volser] [size] */
/* */
/* options options: */
/* -a include alternate cylinders */
/* (ignored if size specified manually) */
/* -z build compressed device using zlib */
/* -bz2 build compressed device using bzip2 */
/* -0 build compressed device with no compression */
/* -r "raw" init (bypass VOL1 & IPL track fmt) */
/* */
/* filename is the name of the disk image file to be created */
/* (this program will not overwrite an existing file) */
/* */
/* devtype is the emulated device type. */
/* CKD: 2305, 2311, 2314, 3330, 3350, 3375, 3380, */
/* 3390, 9345 */
/* FBA: 0671, 3310, 3370, 9313, 9332, 9335, 9336 */
/* */
/* model is the device model number and implies the device */
/* size. If specified, then size shouldn't be specified.*/
/* */
/* volser is the volume serial number (1-6 characters) */
/* (only if '-r' option not used) */
/* */
/* size is the size of the device (in cylinders for CKD */
/* devices, or in 512-byte sectors for FBA devices). */
/* Shouldn't be specified if model is specified. */
/* */
/*-------------------------------------------------------------------*/
#include "hstdinc.h"
#include "hercules.h"
#include "dasdblks.h"
/*-------------------------------------------------------------------*/
/* Subroutine to display command syntax and exit */
/*-------------------------------------------------------------------*/
static void
argexit ( int code, char *m )
{
switch (code) {
case 0:
fprintf (stderr, "Invalid or unsupported option: %s\n",
m ? m : "(null)");
break;
case 1:
fprintf (stderr, "Invalid or missing filename: %s\n",
m ? m : "(null)");
break;
case 2:
fprintf (stderr, "Invalid or missing device type: %s\n",
m ? m : "(null)");
break;
case 3:
fprintf (stderr, "Invalid or missing volser: %s\n",
m ? m : "(null)");
break;
case 4:
fprintf (stderr, "Invalid or missing size: %s\n",
m ? m : "(null)");
break;
case 5:
fprintf (stderr, "Invalid number of arguments\n");
break;
case 6:
fprintf (stderr, "`-linux' only supported for device type 3390\n");
break;
default:
display_version (stderr,
"Hercules DASD image file creation program\n", FALSE);
fprintf (stderr,
"Builds an empty dasd image file:\n\n"
" dasdinit [-options] filename devtype[-model] [volser] [size]\n\n"
"where:\n\n"
" -v display version info and help\n"
#ifdef HAVE_LIBZ
" -z build compressed dasd image file using zlib\n"
#endif
#ifdef CCKD_BZIP2
" -bz2 build compressed dasd image file using bzip2\n"
#endif
" -0 build compressed dasd image file with no compression\n"
);
if (sizeof(off_t) > 4) fprintf(stderr,
" -lfs build a large (uncompressed) dasd file (if supported)\n"
);
fprintf(stderr,
" -a build dasd image file that includes alternate cylinders\n"
" (option ignored if size is manually specified)\n"
" -r build 'raw' dasd image file (no VOL1 or IPL track)\n"
" -linux null track images will look like linux dasdfmt'ed images\n"
" (3390 device type only)\n\n"
" filename name of dasd image file to be created\n\n"
" devtype CKD: 2305, 2311, 2314, 3330, 3340, 3350, 3375, 3380, 3390, 9345\n"
" FBA: 0671, 3310, 3370, 9313, 9332, 9335, 9336\n\n"
" model device model (implies size) (opt)\n\n"
" volser volume serial number (1-6 characters)\n"
" (specified only if '-r' option not used)\n\n"
" size number of CKD cylinders or 512-byte FBA sectors\n"
" (required if model not specified else optional)\n"
);
break;
}
exit(code);
} /* end function argexit */
/*-------------------------------------------------------------------*/
/* DASDINIT program main entry point */
/*-------------------------------------------------------------------*/
int main ( int argc, char *argv[] )
{
int altcylflag = 0; /* Alternate cylinders flag */
int rawflag = 0; /* Raw format flag */
int volsize_argnum = 4; /* argc value of size option */
U32 size = 0; /* Volume size */
U32 altsize = 0; /* Alternate cylinders */
U32 heads = 0; /* Number of tracks/cylinder */
U32 maxdlen = 0; /* Maximum R1 data length */
U32 sectsize = 0; /* Sector size */
U16 devtype = 0; /* Device type */
BYTE comp = 0xff; /* Compression algoritm */
BYTE type = 0; /* C=CKD, F=FBA */
char fname[1024]; /* File name */
char volser[7]; /* Volume serial number */
BYTE c; /* Character work area */
CKDDEV *ckd; /* -> CKD device table entry */
FBADEV *fba; /* -> FBA device table entry */
int lfs = 0; /* 1 = Build large file */
int nullfmt = CKDDASD_NULLTRK_FMT1; /* Null track format type */
int rc; /* Return code */
INITIALIZE_UTILITY("dasdinit");
/* Display program identification and help */
if (argc <= 1 || (argc == 2 && !strcmp(argv[1], "-v")))
argexit(-1, NULL);
/* Process optional arguments */
for ( ; argc > 1 && argv[1][0] == '-'; argv++, argc--)
{
if (strcmp("0", &argv[1][1]) == 0)
comp = CCKD_COMPRESS_NONE;
#ifdef HAVE_LIBZ
else if (strcmp("z", &argv[1][1]) == 0)
comp = CCKD_COMPRESS_ZLIB;
#endif
#ifdef CCKD_BZIP2
else if (strcmp("bz2", &argv[1][1]) == 0)
comp = CCKD_COMPRESS_BZIP2;
#endif
else if (strcmp("a", &argv[1][1]) == 0)
altcylflag = 1;
else if (strcmp("r", &argv[1][1]) == 0)
rawflag = 1;
else if (strcmp("lfs", &argv[1][1]) == 0 && sizeof(off_t) > 4)
lfs = 1;
else if (strcmp("linux", &argv[1][1]) == 0)
nullfmt = CKDDASD_NULLTRK_FMT2;
else argexit(0, argv[1]);
}
/* Check remaining number of arguments */
if (argc < (rawflag ? 3 : 4) || argc > (rawflag ? 4 : 5))
argexit(5, NULL);
/* The first argument is the file name */
if (argv[1] == NULL || strlen(argv[1]) == 0
|| strlen(argv[1]) > sizeof(fname)-1)
argexit(1, argv[1]);
strcpy (fname, argv[1]);
/* The second argument is the device type.
Model number may also be specified */
if (argv[2] == NULL)
argexit(2, argv[2]);
ckd = dasd_lookup (DASD_CKDDEV, argv[2], 0, 0);
if (ckd != NULL)
{
type = 'C';
devtype = ckd->devt;
size = ckd->cyls;
altsize = ckd->altcyls;
heads = ckd->heads;
maxdlen = ckd->r1;
}
else
{
fba = dasd_lookup (DASD_FBADEV, argv[2], 0, 0);
if (fba != NULL)
{
type = 'F';
devtype = fba->devt;
size = fba->blks;
altsize = 0;
sectsize = fba->size;
}
}
if (!type)
/* Specified model not found */
argexit(2, argv[2]);
/* If -r option specified, then there is not volume serial
argument and volume size argument is actually argument
number 3 and not argument number 4 as otherwise */
if (rawflag)
volsize_argnum = 3;
else
{
volsize_argnum = 4;
/* The third argument is the volume serial number */
if (argv[3] == NULL || strlen(argv[3]) == 0
|| strlen(argv[3]) > sizeof(volser)-1)
argexit(3, argv[3]);
strcpy (volser, argv[3]);
string_to_upper (volser);
}
/* The fourth argument (or third for -r) is the volume size */
if (argc > volsize_argnum)
{
if (argc > (volsize_argnum+1))
argexit(5, NULL);
if (!argv[volsize_argnum] || strlen(argv[volsize_argnum]) == 0
|| sscanf(argv[volsize_argnum], "%u%c", &size, &c) != 1)
argexit(4, argv[volsize_argnum]);
altcylflag = 0;
}
/* `-linux' only supported for 3390 device type */
if (nullfmt == CKDDASD_NULLTRK_FMT2 && devtype != 0x3390)
argexit(6, NULL);
if (altcylflag)
size += altsize;
/* Create the device */
if (type == 'C')
rc = create_ckd (fname, devtype, heads, maxdlen, size, volser,
comp, lfs, 0, nullfmt, rawflag);
else
rc = create_fba (fname, devtype, sectsize, size, volser, comp,
lfs, 0, rawflag);
/* Display completion message */
if (rc == 0)
{
fprintf (stderr, _("HHCDI001I DASD initialization successfully "
"completed.\n"));
} else {
fprintf (stderr, _("HHCDI002I DASD initialization unsuccessful"
"\n"));
}
return rc;
} /* end function main */
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