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-rw-r--r--wodim/scsi_scan.c379
1 files changed, 379 insertions, 0 deletions
diff --git a/wodim/scsi_scan.c b/wodim/scsi_scan.c
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+++ b/wodim/scsi_scan.c
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+/*
+ * This file has been modified for the cdrkit suite.
+ *
+ * The behaviour and appearence of the program code below can differ to a major
+ * extent from the version distributed by the original author(s).
+ *
+ * For details, see Changelog file distributed with the cdrkit package. If you
+ * received this file from another source then ask the distributing person for
+ * a log of modifications.
+ *
+ */
+
+/* @(#)scsi_scan.c 1.19 04/04/16 Copyright 1997-2004 J. Schilling */
+/*
+ * Scan SCSI Bus.
+ * Stolen from sformat. Need a more general form to
+ * re-use it in sformat too.
+ *
+ * Copyright (c) 1997-2004 J. Schilling
+ */
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; see the file COPYING. If not, write to the Free Software
+ * Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#include <mconfig.h>
+#include <stdio.h>
+#include <errno.h>
+#include <schily.h>
+
+#include <usal/usalcmd.h>
+#include <usal/scsidefs.h>
+#include <usal/scsireg.h>
+#include <usal/scsitransp.h>
+
+#include "scsi_scan.h"
+#include "wodim.h"
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
+#include <string.h>
+#include <ctype.h>
+#include <stdlib.h>
+
+
+static void print_product(FILE *f, struct scsi_inquiry *ip);
+int select_target(SCSI *usalp, FILE *f);
+
+#define MAXDEVCOUNT (256+26)
+
+extern BOOL check_linux_26();
+
+static void print_product(FILE *f, struct scsi_inquiry *ip) {
+ fprintf(f, "'%.8s' ", ip->vendor_info);
+ fprintf(f, "'%.16s' ", ip->prod_ident);
+ fprintf(f, "'%.4s' ", ip->prod_revision);
+ if (ip->add_len < 31) {
+ fprintf(f, "NON CCS ");
+ }
+ usal_fprintdev(f, ip);
+}
+
+SCSI * open_auto(int64_t need_size, int debug, int lverbose) {
+ int res;
+ SCSI * usalp = NULL;
+ char errstr[80];
+
+#ifdef __linux__
+ /* quick-and-dirty code but should do what is supposed to, more quickly */
+
+ /*
+ * For Linux, try these strategies, in order:
+ * 1. stat /dev/cdrw or /dev/dvdrw, depending on size we need.
+ * 2. Read /proc/sys/dev/cdrom/info, look for a CD-R/DVD-R.
+ * Will fail for kernel 2.4 or if cdrom module not loaded.
+ * 3. stat /dev/cdrom, just assume that it can write media.
+
+ An example for procfs file contents, beware of the TABs
+
+---
+CD-ROM information, Id: cdrom.c 3.20 2003/12/17
+
+drive name: hdc hda
+drive speed: 40 40
+drive # of slots: 1 1
+Can close tray: 1 1
+Can open tray: 1 1
+Can lock tray: 1 1
+Can change speed: 1 1
+Can select disk: 0 0
+Can read multisession: 1 1
+Can read MCN: 1 1
+Reports media changed: 1 1
+Can play audio: 1 1
+Can write CD-R: 0 1
+Can write CD-RW: 0 1
+Can read DVD: 1 1
+Can write DVD-R: 0 1
+Can write DVD-RAM: 0 1
+Can read MRW: 0 1
+Can write MRW: 0 1
+Can write RAM: 0 1
+
+---
+*/
+ struct stat statbuf;
+ /* XXX Good guess? BD-RE recorders may not support CDRW anymore... */
+ char *type="CD-R", *key="Can write CD-R:", *guessdev="/dev/cdrw", *result=NULL;
+ FILE *fh;
+
+ if( need_size > 360000*2048 ) {
+ type="DVD-R";
+ guessdev="/dev/dvdrw";
+ key="Can write DVD-R:";
+ }
+
+ if(need_size>10240) /* don't bother with weird numbers */
+ fprintf(stderr, "Looking for a %s drive to store %.2f MiB...\n", type, (float)need_size/1048576.0);
+ if(0==stat(guessdev, &statbuf))
+ result=guessdev;
+ else if(0!= (fh = fopen("/proc/sys/dev/cdrom/info", "r")) ) {
+ /* ok, going the hard way */
+ char *nameline=NULL;
+ static char buf[256];
+ int kn = strlen(key);
+
+ buf[255]='\0';
+
+ while(fgets(buf, sizeof(buf), fh)) {
+ if(0==strncmp(buf, "drive name:", 11))
+ nameline=strdup(buf);
+ if(nameline && 0==strncmp(buf, key, kn)) {
+ int p=kn;
+ char *descptr=nameline+11; /* start at the known whitespace */
+ while(p<sizeof(buf) && buf[p]) {
+ if(buf[p]=='1' || buf[p]=='0') {
+ /* find the beginning of the descriptor */
+ for(;isspace((Uchar) *descptr);descptr++)
+ ;
+ }
+ if(buf[p]=='1') {
+ result=descptr-5;
+ /* terminate on space/newline and stop there */
+ for(;*descptr;descptr++) {
+ if(isspace((Uchar) *descptr))
+ *(descptr--)='\0';
+ }
+ strncpy(result, "/dev/", 5);
+ break;
+ }
+ else { /* no hit, move to after word ending */
+ for(; *descptr && ! isspace((Uchar) *descptr); descptr++)
+ ;
+ }
+ p++;
+ }
+ }
+
+ }
+ fclose(fh);
+ }
+
+ if(result)
+ fprintf(stderr, "Detected %s drive: %s\n", type, result);
+ if (0==stat("/dev/cdrom", &statbuf)) {
+ result = "/dev/cdrom";
+ fprintf(stderr, "Using /dev/cdrom of unknown capabilities\n");
+ }
+ if(result)
+ return usal_open(result, errstr, sizeof(errstr), debug, lverbose);
+#endif /* __linux__ */
+
+ usalp = usal_open(NULL, errstr, sizeof(errstr), debug, lverbose);
+ if(!usalp)
+ return NULL;
+ res = list_devices(usalp, stdout, 1);
+ if(res>0)
+ return usalp;
+ else
+ usal_close(usalp);
+ return NULL;
+}
+
+int list_devices(SCSI *usalp, FILE *f, int pickup_first) {
+ int initiator;
+ int i;
+ int bus;
+ int tgt;
+ int lun = 0;
+ BOOL have_tgt;
+
+ int fd, ndevs=0;
+ struct stat statbuf;
+ char *lines[MAXDEVCOUNT];
+ char buf[256], perms[8];
+
+
+ usalp->silent++;
+
+ /* XXX should be done before opening usal fprintf(stderr, "Beginning native device scan. This may take a while if devices are busy...\n"); */
+
+ for (bus = 0; bus < 1256; bus++) {
+ usal_settarget(usalp, bus, 0, 0);
+
+ if (!usal_havebus(usalp, bus))
+ continue;
+
+ initiator = usal_initiator_id(usalp);
+ //fprintf(f, "scsibus%d:\n", bus);
+
+ for (tgt = 0; tgt < 16; tgt++) {
+ usal_settarget(usalp, bus, tgt, lun);
+ have_tgt = unit_ready(usalp) || usalp->scmd->error != SCG_FATAL;
+
+ if (!have_tgt && tgt > 7) {
+ if (usalp->scmd->ux_errno == EINVAL)
+ break;
+ continue;
+ }
+
+ fd=usal_fileno(usalp, bus, tgt, lun);
+ strcpy(perms,"------");
+ if(fd>=0 && 0==fstat(fd, &statbuf)) {
+ if(statbuf.st_mode&S_IRUSR) perms[0]= 'r';
+ if(statbuf.st_mode&S_IWUSR) perms[1]= 'w';
+ if(statbuf.st_mode&S_IRGRP) perms[2]= 'r';
+ if(statbuf.st_mode&S_IWGRP) perms[3]= 'w';
+ if(statbuf.st_mode&S_IROTH) perms[4]= 'r';
+ if(statbuf.st_mode&S_IWOTH) perms[5]= 'w';
+ }
+ getdev(usalp, FALSE);
+ if(usalp->inq->type == INQ_ROMD || usalp->inq->type == INQ_WORM) {
+ char *p;
+
+ for(p=usalp->inq->vendor_info + 7 ; p >= usalp->inq->vendor_info; p--) {
+ if(isspace((unsigned char)*p))
+ *p='\0';
+ else
+ break;
+ }
+ for(p=usalp->inq->prod_ident + 15 ; p >= usalp->inq->prod_ident; p--) {
+ if(isspace((unsigned char)*p))
+ *p='\0';
+ else
+ break;
+ }
+ snprintf(buf, sizeof(buf), "%2d dev='%s'\t%s : '%.8s' '%.16s'\n", ndevs, usal_natname(usalp, bus, tgt, lun), perms, usalp->inq->vendor_info, usalp->inq->prod_ident);
+ /* alternative use, only select the first device */
+ if(pickup_first) {
+ printf("Using drive: %s\n", usal_natname(usalp, bus, tgt, lun));
+ return 1;
+ }
+ lines[ndevs++]=strdup(buf);
+ }
+
+ }
+ }
+ usalp->silent--;
+
+ /* should have been returned before if there was a recorder */
+ if(pickup_first)
+ return 0;
+
+ /* now start the output */
+
+ fprintf(stdout, "%s: Overview of accessible drives (%d found) :\n"
+ "-------------------------------------------------------------------------\n",
+ get_progname(), ndevs);
+ for(i=0;i<ndevs;i++) {
+ fprintf(stdout, "%s", lines[i]);
+ free(lines[i]);
+ }
+ fprintf(stdout, "-------------------------------------------------------------------------\n");
+
+ return ndevs;
+}
+
+int select_target(SCSI *usalp, FILE *f) {
+ int initiator;
+#ifdef FMT
+ int cscsibus = usal_scsibus(usalp);
+ int ctarget = usal_target(usalp);
+ int clun = usal_lun(usalp);
+#endif
+ int n;
+ int low = -1;
+ int high = -1;
+ int amt = 0;
+ int bus;
+ int tgt;
+ int lun = 0;
+ BOOL have_tgt;
+
+ usalp->silent++;
+
+ for (bus = 0; bus < 1256; bus++) {
+ usal_settarget(usalp, bus, 0, 0);
+
+ if (!usal_havebus(usalp, bus))
+ continue;
+
+ initiator = usal_initiator_id(usalp);
+ fprintf(f, "scsibus%d:\n", bus);
+
+ for (tgt = 0; tgt < 16; tgt++) {
+ n = bus*100 + tgt;
+
+ usal_settarget(usalp, bus, tgt, lun);
+ have_tgt = unit_ready(usalp) || usalp->scmd->error != SCG_FATAL;
+
+ if (!have_tgt && tgt > 7) {
+ if (usalp->scmd->ux_errno == EINVAL)
+ break;
+ continue;
+ }
+
+#ifdef FMT
+ if (print_disknames(bus, tgt, -1) < 8)
+ fprintf(f, "\t");
+ else
+ fprintf(f, " ");
+#else
+ fprintf(f, "\t");
+#endif
+ if (fprintf(f, "%d,%d,%d", bus, tgt, lun) < 8)
+ fprintf(f, "\t");
+ else
+ fprintf(f, " ");
+ fprintf(f, "%3d) ", n);
+ if (tgt == initiator) {
+ fprintf(f, "HOST ADAPTOR\n");
+ continue;
+ }
+ if (!have_tgt) {
+ /*
+ * Hack: fd -> -2 means no access
+ */
+ fprintf(f, "%c\n", usalp->fd == -2 ? '?':'*');
+ continue;
+ }
+ amt++;
+ if (low < 0)
+ low = n;
+ high = n;
+
+ getdev(usalp, FALSE);
+ print_product(f, usalp->inq);
+ }
+ }
+ usalp->silent--;
+
+ if (low < 0) {
+ errmsgno(EX_BAD, "No target found.\n");
+ return (0);
+ }
+ n = -1;
+#ifdef FMT
+ getint("Select target", &n, low, high);
+ bus = n/100;
+ tgt = n%100;
+ usal_settarget(usalp, bus, tgt, lun);
+ return (select_unit(usalp));
+
+ usal_settarget(usalp, cscsibus, ctarget, clun);
+#endif
+ return (amt);
+}
+
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