1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357
|
/*
* dasdcat
*
* Vast swathes copied from dasdpdsu.c (c) Copyright Roger Bowler, 1999-2003
* Changes and additions Copyright 2000-2003 by Malcolm Beattie
*/
#include "hercules.h"
#include "dasdblks.h"
/* Option flags */
#define OPT_ASCIIFY 0x1
#define OPT_CARDS 0x2
#define OPT_PDS_WILDCARD 0x4
#define OPT_PDS_LISTONLY 0x8
#ifdef EXTERNALGUI
/* Special flag to indicate whether or not we're being
run under the control of the external GUI facility. */
int extgui = 0;
#endif /*EXTERNALGUI*/
int end_of_track(char *ptr)
{
unsigned char *p = (unsigned char *)ptr;
return p[0] == 0xff && p[1] == 0xff && p[2] == 0xff && p[3] == 0xff
&& p[4] == 0xff && p[5] == 0xff && p[6] == 0xff && p[7] == 0xff;
}
int do_cat_cards(BYTE *buf, int len, unsigned long optflags)
{
if (len % 80 != 0) {
fprintf(stderr,
_("HHCDT002E Can't make 80 column card images from block length %d\n"), len);
return -1;
}
while (len) {
BYTE card[81];
make_asciiz(card, sizeof(card), buf, 72);
if (optflags & OPT_PDS_WILDCARD) {
putchar('|');
putchar(' ');
}
puts(card);
len -= 80;
buf += 80;
}
return 0;
}
int process_member(CIFBLK *cif, int noext, DSXTENT extent[],
BYTE *ttr, unsigned long optflags)
{
int rc, trk, len, cyl, head, rec;
BYTE *buf;
char *scodepage;
/* set_codepage() uses the logmsg macro which requires msgpipew */
sysblk.msgpipew = stdout;
if(!sysblk.codepage)
{
if((scodepage = getenv("HERCULES_CP")))
set_codepage(scodepage);
else
set_codepage("default");
}
trk = (ttr[0] << 8) | ttr[1];
rec = ttr[2];
while (1) {
rc = convert_tt(trk, noext, extent, cif->heads, &cyl, &head);
if (rc < 0)
return -1;
rc = read_block(cif, cyl, head, rec, 0, 0, &buf, &len);
if (rc < 0)
return -1;
if (rc > 0) {
trk++;
rec = 1;
continue;
}
if (len == 0)
break;
if (optflags & OPT_CARDS)
do_cat_cards(buf, len, optflags);
else if (optflags & OPT_ASCIIFY) {
BYTE *p;
for (p = buf; len--; p++)
putchar(guest_to_host(*p));
} else {
fwrite(buf, len, 1, stdout);
}
rec++;
}
return 0;
}
int process_dirblk(CIFBLK *cif, int noext, DSXTENT extent[], BYTE *dirblk,
char *pdsmember, unsigned long optflags)
{
int rc;
int dirrem;
BYTE memname[9];
/* Load number of bytes in directory block */
dirrem = (dirblk[0] << 8) | dirblk[1];
if (dirrem < 2 || dirrem > 256) {
fprintf(stderr, _("HHCDT003E Directory block byte count is invalid\n"));
return -1;
}
if (!strcmp(pdsmember, "*"))
optflags |= OPT_PDS_WILDCARD;
else if (!strcmp(pdsmember, "?"))
optflags |= OPT_PDS_LISTONLY;
/* Point to first directory entry */
dirblk += 2;
dirrem -= 2;
while (dirrem > 0) {
PDSDIR *dirent = (PDSDIR*)dirblk;
int k, size;
if (end_of_track(dirent->pds2name))
return 1;
make_asciiz(memname, sizeof(memname), dirent->pds2name, 8);
if (optflags & OPT_PDS_LISTONLY) {
BYTE memname_lc[9];
memcpy(memname_lc, memname, sizeof(memname));
string_to_lower(memname_lc);
puts(memname_lc);
}
else if ((optflags & OPT_PDS_WILDCARD) || !strcmp(pdsmember, memname)) {
if (optflags & OPT_PDS_WILDCARD)
printf("> Member %s\n", memname);
rc = process_member(cif, noext, extent, dirent->pds2ttrp, optflags);
if (rc < 0)
return -1;
}
/* Load the user data halfword count */
k = dirent->pds2indc & PDS2INDC_LUSR;
/* Point to next directory entry */
size = 12 + k*2;
dirblk += size;
dirrem -= size;
}
return 0;
}
int do_cat_pdsmember(CIFBLK *cif, DSXTENT *extent, int noext,
char *pdsmember, unsigned long optflags)
{
int rc, trk, rec;
/* Point to the start of the directory */
trk = 0;
rec = 1;
/* Read the directory */
while (1) {
BYTE *blkptr;
BYTE dirblk[256];
int cyl, head, len;
#ifdef EXTERNALGUI
if (extgui) fprintf(stderr,"CTRK=%d\n",trk);
#endif /*EXTERNALGUI*/
rc = convert_tt(trk, noext, extent, cif->heads, &cyl, &head);
if (rc < 0)
return -1;
rc = read_block(cif, cyl, head, rec, 0, 0, &blkptr, &len);
if (rc < 0)
return -1;
if (rc > 0) {
trk++;
rec = 1;
continue;
}
if (len == 0)
break;
memcpy(dirblk, blkptr, sizeof(dirblk));
rc = process_dirblk(cif, noext, extent, dirblk, pdsmember, optflags);
if (rc < 0)
return -1;
if (rc > 0)
break;
rec++;
}
return rc;
}
int do_cat_nonpds(CIFBLK *cif, DSXTENT *extent, int noext,
unsigned long optflags)
{
UNREFERENCED(cif);
UNREFERENCED(extent);
UNREFERENCED(noext);
UNREFERENCED(optflags);
fprintf(stderr, _("HHCDT004E non-PDS-members not yet supported\n"));
return -1;
}
int do_cat(CIFBLK *cif, char *file)
{
int rc;
DSXTENT extent[16];
int noext;
char buff[100]; /* must fit max length DSNAME/MEMBER..OPTS */
char dsname[45];
unsigned long optflags = 0;
char *p;
char *pdsmember = 0;
if (!cif)
return 1;
strncpy(buff, file, sizeof(buff));
buff[sizeof(buff)-1] = 0;
p = strchr(buff, ':');
if (p) {
*p++ = 0;
for (; *p; p++) {
if (*p == 'a')
optflags |= OPT_ASCIIFY;
else if (*p == 'c')
optflags |= OPT_CARDS;
else
fprintf(stderr, _("HHCDT005E unknown dataset name option: '%c'\n"), *p);
}
}
p = strchr(buff, '/');
if (p) {
*p = 0;
pdsmember = p + 1;
string_to_upper(pdsmember);
}
strncpy(dsname, buff, sizeof(dsname));
dsname[sizeof(dsname)-1] = 0;
string_to_upper(dsname);
rc = build_extent_array(cif, dsname, extent, &noext);
if (rc < 0)
return -1;
#ifdef EXTERNALGUI
/* Calculate ending relative track */
if (extgui) {
int bcyl; /* Extent begin cylinder */
int btrk; /* Extent begin head */
int ecyl; /* Extent end cylinder */
int etrk; /* Extent end head */
int trks; /* total tracks in dataset */
int i; /* loop control */
for (i = 0, trks = 0; i < noext; i++) {
bcyl = (extent[i].xtbcyl[0] << 8) | extent[i].xtbcyl[1];
btrk = (extent[i].xtbtrk[0] << 8) | extent[i].xtbtrk[1];
ecyl = (extent[i].xtecyl[0] << 8) | extent[i].xtecyl[1];
etrk = (extent[i].xtetrk[0] << 8) | extent[i].xtetrk[1];
trks += (((ecyl*cif->heads)+etrk)-((bcyl*cif->heads)+btrk))+1;
}
fprintf(stderr,"ETRK=%d\n",trks-1);
}
#endif /*EXTERNALGUI*/
if (pdsmember)
rc = do_cat_pdsmember(cif, extent, noext, pdsmember, optflags);
else
rc = do_cat_nonpds(cif, extent, noext, optflags);
return rc;
}
int main(int argc, char **argv)
{
int rc = 0;
CIFBLK *cif = 0;
char *fn, *sfn;
#ifdef EXTERNALGUI
if (argc >= 1 && strncmp(argv[argc-1],"EXTERNALGUI",11) == 0) {
argv[argc-1] = NULL;
extgui = 1;
argc--;
}
#endif /*EXTERNALGUI*/
/* Display program info message */
display_version (stderr, "Hercules DASD cat program ");
if (argc < 2) {
fprintf(stderr, "Usage: dasdcat [-i dasd_image [sf=shadow-file-name] dsname...]...\n");
fprintf(stderr, " dsname can (currently must) be pdsname/spec\n");
fprintf(stderr, " spec is memname[:flags], * (all) or ? (list)\n");
fprintf(stderr, " flags can include (c)ard images, (a)scii\n");
exit(2);
}
/*
* If your version of Hercules doesn't have support in its
* dasdutil.c for turning off verbose messages, then remove
* the following line but you'll have to live with chatty
* progress output on stdout.
*/
set_verbose_util(0);
while (*++argv)
{
if (!strcmp(*argv, "-i"))
{
fn = *++argv;
if (*(argv+1) && strlen (*(argv+1)) > 3 && !memcmp(*(argv+1), "sf=", 3))
sfn = *++argv;
else sfn = NULL;
if (cif)
{
close_ckd_image(cif);
cif = 0;
}
cif = open_ckd_image(fn, sfn, O_RDONLY, 0);
if (!cif)
fprintf(stderr, _("HHCDT001E failed to open image %s\n"), *argv);
}
else
{
if (do_cat(cif, *argv))
rc = 1;
}
}
if (cif)
close_ckd_image(cif);
return rc;
}
|