Imported Upstream version 1.1.11upstream/1.1.11upstream

1 files changed, 379 insertions, 0 deletions

diff --git a/wodim/scsi_scan.c b/wodim/scsi_scan.c
new file mode 100644
index 0000000..218d23f
--- /dev/null
+++ b/wodim/scsi_scan.c
@@ -0,0 +1,379 @@
+/*
+ * 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);
+}
+