From b4018d0a2bff879f52e5d40545b0b0b7fb78b4bc Mon Sep 17 00:00:00 2001
From: Laurent Vivier <Laurent@lvivier.info>
Date: Fri, 10 Dec 2004 00:13:11 +0000
Subject: [PATCH] moved to libemile/emile_scsi_create_container.c

---
 tools/blocks.c | 198 -------------------------------------------------
 1 file changed, 198 deletions(-)
 delete mode 100644 tools/blocks.c

diff --git a/tools/blocks.c b/tools/blocks.c
deleted file mode 100644
index ba4e8d5..0000000
--- a/tools/blocks.c
+++ /dev/null
@@ -1,198 +0,0 @@
-/*
- *
- * (c) 2004 Laurent Vivier <LaurentVivier@wanadoo.fr>
- *
- */
-
-#include <unistd.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <fcntl.h>
-#include <stdio.h>
-#include <sys/ioctl.h>
-#include <errno.h>
-#include <string.h>
-#include <linux/fs.h>
-#include <linux/hdreg.h>
-#include <scsi/scsi.h>
-
-#include "blocks.h"
-
-#define MAJOR_SD	8	/* SCSI disks */
-
-struct scsi_id {
-	int dev;
-	int host_unique_id;
-};
-
-static int get_scsi_path(int fd, unsigned char *host, unsigned char *channel, 
-				 unsigned char *pun, unsigned char *lun)
-{
-	int ret;
-	struct scsi_id path;
-
-	ret = ioctl(fd, SCSI_IOCTL_GET_IDLUN, &path);
-
-	*host = path.dev >> 24;
-	*channel = path.dev >> 16;
-	*lun = path.dev >> 8;
-	*pun = path.dev;
-
-	return ret;
-}
-
-static int get_device_info(int device, int *id, unsigned long *first_block, 
-				       int *block_size)
-{
-	int fd;
-	int ret;
-	char dev_name[16];
-	int major;
-	int minor;
-	struct hd_geometry geom;
-	unsigned char host;
-	unsigned char channel;
-	unsigned char pun;
-	unsigned char lun;
-
-	major = (device >> 8) & 0x0F;	/* major number = driver id */
-	minor = device & 0xFF;		/* minor number = disk id */
-	switch(major)
-	{
-	case MAJOR_SD: /* SCSI disks */
-		sprintf(dev_name, "/dev/sd%c%d", 'a' + (minor >> 4),
-						 minor & 0x0F);
-		break;
-
-	default:
-		fprintf(stderr, "Unknown device major number %d\n", major);
-		return -1;
-	}
-
-	fd = open(dev_name, O_RDONLY);
-	if (fd == 1) {
-		fprintf(stderr, "Cannot open device %s (%s)\n", dev_name,
-				 strerror(errno));
-		return -1;
-	}
-	ret = get_scsi_path(fd, &host, &channel, &pun, &lun);
-	*id = pun;
-
-	ret = ioctl(fd, HDIO_GETGEO, &geom);
-	if (ret == -1)
-	{
-		fprintf(stderr, "%s: ioctl(HDIO_GETGEO) fails: %s",
-				dev_name, strerror(errno));
-		return -1;
-	}
-#if 0	/* BLKSSZGET is buggy on my m68k 2.2.27-pre2 kernel */
-	ret = ioctl(fd, BLKSSZGET, block_size);
-	if (ret == -1)
-	{
-		fprintf(stderr, "%s: ioctl(BLKSSZGET) fails: %s",
-				dev_name, strerror(errno));
-		return -1;
-	}
-#else
-	*block_size = 512;
-#endif
-	*first_block = geom.start;
-	close(fd);
-
-	return 0;
-}
-
-#define ADD_BLOCK(a, b)					\
-	container->blocks[current].offset = (a);	\
-	container->blocks[current].count = (b);		\
-	current++;					\
-	if (current > container->max_blocks)		\
-	{						\
-		fprintf(stderr, "Container overflow\n");\
-		return -1;				\
-	}
-
-int scsi_create_container(int fd, struct emile_container* container)
-{
-	int ret;
-	struct stat st;
-	int id;
-	unsigned long first_block;
-	int sector_size;
-	int block_size;
-	int sectors_per_block;
-	int current;
-	int logical;
-	int physical;
-	int last_physical;
-	int num_blocks;
-	int zone;
-	int aggregate;
-	int dev;
-
-	ret = fstat(fd, &st);
-	if (ret == -1) {
-		perror("stat()");
-		return -1;
-	}
-
-	dev = S_ISREG(st.st_mode) ? st.st_dev : st.st_rdev;
-
-	ret = get_device_info(dev, &id, &first_block, &sector_size);
-	if (ret != 0)
-		return -1;
-
-	container->unit_id = (u_int16_t)id;
-	container->block_size = (u_int16_t)sector_size;
-
-	/* get filesystem block size */
-
-	ret = ioctl(fd, FIGETBSZ, &block_size);
-	if (ret != 0) {
-		perror("ioctl(FIGETBSZ)");
-		return -1;
-	}
-
-	sectors_per_block = block_size / sector_size;
-
-	/* get first physical block */
-
-	last_physical = 0;
-	ret = ioctl(fd, FIBMAP, &last_physical);
-	if (ret != 0) {
-		perror("ioctl(FIBMAP)");
-		return -1;
-	}
-
-	zone = last_physical;
-	aggregate = 1;
-
-	/* seek all physical blocks */
-
-	num_blocks = (st.st_size + st.st_blksize - 1) / st.st_blksize;
-	current = 0;
-	for (logical = 1; logical < num_blocks; logical++) {
-		physical = logical;
-		ret = ioctl(fd, FIBMAP, &physical);
-		if (ret != 0)
-			break;
-		if (physical == last_physical + 1) {
-			aggregate++;
-		} else {
-			ADD_BLOCK(first_block + zone * sectors_per_block,
-				  aggregate * sectors_per_block);
-			zone = physical;
-			aggregate = 1;
-		}
-		last_physical = physical;
-	}
-
-	ADD_BLOCK(first_block + zone * sectors_per_block,
-		  aggregate * sectors_per_block);
-
-	/* end of list */
-
-	ADD_BLOCK(0, 0);
-
-	return 0;
-}