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dasdinit.c
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/* DASDINIT.C (c) Copyright Roger Bowler, 1999-2012 */
/* Hercules DASD Utilities: DASD image builder */
/* */
/* Released under "The Q Public License Version 1" */
/* (http://www.hercules-390.org/herclic.html) as modifications to */
/* Hercules. */
/*-------------------------------------------------------------------*/
/* 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) */
/* -b build disabled wait PSW as BC-mode PSW (if */
/* not specified, default is EC-mode PSW) */
/* -m build disabled wait PSW enabled for */
/* machine checks (default is disabled for */
/* machine checks) */
/* -linux format dasd using linux null track format */
/* */
/* Note: To get a disabled wait PSW that matches */
/* what this program originally created, */
/* you must specify the "-b" and "-m" */
/* options. The revised defaults, if */
/* those switches are not specified, is an */
/* EC-mode PSW disabled for machine checks. */
/* */
/* 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"
#define UTILITY_NAME "dasdinit"
static void argexit ( int code, char *m );
/*-------------------------------------------------------------------*/
/* DASDINIT program main entry point */
/*-------------------------------------------------------------------*/
int main ( int argc, char *argv[] )
{
char *pgm; /* less any extension (.ext) */
int altcylflag = 0; /* Alternate cylinders flag */
int rawflag = 0; /* Raw format flag */
int volsize_argnum = 4; /* argc value of size option */
int flagECmode = 1; /* IPL PSW mode flag */
int flagMachinecheck = 0; /* IPL PSW machine check flag*/
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( UTILITY_NAME, "DASD image file creation program", &pgm );
/* Display help if needed or requested */
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 if (strcmp("b", &argv[1][1]) == 0)
flagECmode = 0;
else if (strcmp("m", &argv[1][1]) == 0)
flagMachinecheck = 1;
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, flagECmode, flagMachinecheck);
else
rc = create_fba (fname, devtype, sectsize, size, volser, comp,
lfs, 0, rawflag);
/* Display completion message */
if (rc == 0)
{
// "DASD operation completed"
WRMSG( HHC02423, "I" );
} else {
// "DASD operation failed"
FWRMSG( stderr, HHC02449, "E" );
}
return rc;
} /* end function main */
/*-------------------------------------------------------------------*/
/* Subroutine to display command syntax and exit */
/*-------------------------------------------------------------------*/
static void
argexit ( int code, char *m )
{
// HHC02445: "Invalid, unsupported or missing %s: %s"
switch (code) {
case 0:
FWRMSG( stderr, HHC02445, "E", "option", m ? m : "(null)" );
break;
case 1:
FWRMSG( stderr, HHC02445, "E", "filename", m ? m : "(null)" );
break;
case 2:
FWRMSG( stderr, HHC02445, "E", "device type", m ? m : "(null)" );
break;
case 3:
FWRMSG( stderr, HHC02445, "E", "volser", m ? m : "(null)" );
break;
case 4:
FWRMSG( stderr, HHC02445, "E", "size", m ? m : "(null)" );
break;
case 5:
FWRMSG( stderr, HHC02446, "E" );
break;
case 6:
FWRMSG( stderr, HHC02447, "E" );
break;
default:
{
#ifdef HAVE_LIBZ
char *bufz = " -z build compressed dasd image file using zlib\n";
#else
char *bufz = "";
#endif
#ifdef CCKD_BZIP2
char *bufbz = " -bz2 build compressed dasd image file using bzip2\n";
#else
char *bufbz = "";
#endif
char buflfs[80];
strlcpy( buflfs,
(sizeof(off_t) > 4) ?
" -lfs build a large (uncompressed) dasd file (if supported)\n" : "",
sizeof( buflfs ) );
// HHC02448 "Usage: dasdinit ...."
WRMSG( HHC02448, "I", bufz, bufbz, buflfs );
}
break;
}
exit(code);
} /* end function argexit */