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From: Richard R. <fl...@us...> - 2002-02-09 13:46:49
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Changes by: flatcap Update of /cvsroot/linux-ntfs/dynamic-disk/test In directory usw-pr-cvs1:/tmp/cvs-serv25824 Modified Files: Makefile Added Files: sparse.c Log Message: new support tool -- combines partition table and database into a disk-sized sparse file --- NEW FILE --- /** * sparse - Part of the Linux-NTFS project. * * Copyright (C) 2001 Richard Russon <ld...@fl...> * * Documentation is available at http://linux-ntfs.sourceforge.net/ldm * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the Free * Software Foundation; either version 2 of the License, or (at your option) * any later version. * * 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 (in the main directory of the Linux-NTFS source * in the file COPYING); if not, write to the Free Software Foundation, * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #include <stdio.h> #include <sys/types.h> #include <sys/stat.h> #include <fcntl.h> #include <unistd.h> #include <errno.h> #include <string.h> int main (int argc, char *argv[]) { char buf[512]; char *part; char *data; char *out; int fpart; int fdata; int fout; __off64_t off; if (argc != 5) { printf ("\nUsage:\n\t%s part data sectors output\n\n", basename (argv[0])); return 1; } part = argv[1]; data = argv[2]; out = argv[4]; off = atol (argv[3]); if (off == 0) { printf ("Sectors must be non-zero\n"); return 1; } off -= 2048; off <<= 9; fpart = open (part, O_RDONLY); if (fpart < 0) { printf ("Cannot open part file '%s'\n", part); return 1; } fdata = open (data, O_RDONLY); if (fdata < 0) { printf ("Cannot open data file '%s'\n", data); return 1; } fout = open (out, O_RDWR | O_TRUNC | O_CREAT, S_IRUSR | S_IWUSR); if (fout < 0) { printf ("Cannot open output file '%s'\n", out); return 1; } while (read (fpart, buf, sizeof (buf)) == sizeof (buf)) { if (write (fout, buf, sizeof (buf)) < sizeof (buf)) { printf ("Cannot write to '%s'\n", part); return 1; } } if (lseek64 (fout, off, SEEK_SET) < 0) { printf ("Seek failed (%s) in '%s', offset %llu\n", strerror (errno), out, off); printf ("Check this isn't limitation of your filesystem\n"); printf ("e.g. By default ext2 has a limit of 16Gb\n"); return 1; } while (read (fdata, buf, sizeof (buf)) == sizeof (buf)) { if (write (fout, buf, sizeof (buf)) < sizeof (buf)) { printf ("Cannot write to '%s'\n", data); return 1; } } close (fpart); close (fdata); close (fout); printf ("Succeeded\n"); return 0; } Index: Makefile =================================================================== RCS file: /cvsroot/linux-ntfs/dynamic-disk/test/Makefile,v retrieving revision 1.10 retrieving revision 1.11 diff -U2 -r1.10 -r1.11 --- Makefile 8 Feb 2002 13:19:09 -0000 1.10 +++ Makefile 9 Feb 2002 13:46:46 -0000 1.11 @@ -1,22 +1,26 @@ # Copyright (C) 2001 Richard Russon -SRC = compat.c dump.c ldminfo.c +SRC = compat.c dump.c ldminfo.c sparse.c OBJ = $(SRC:.c=.o) -OBJP = ../linux/fs/partitions/partitions.o -DEP = ../linux/fs/partitions/ldm.c \ - ../linux/fs/partitions/ldm.h \ -OUT = ldminfo +LDMDEP = ../linux/fs/partitions/partitions.o +INFODEP = $(LDMDEP) compat.o dump.o ldminfo.o +OUT = ldminfo sparse + +CFLAGS += -include extra.h CFLAGS += -I$(KERNEL)/include CFLAGS += -I$(KERNEL)/fs/partitions -all: $(DEP) $(SRC) $(OUT) +all: $(OUT) .c.o: $(CC) $(CFLAGS) -c $< -o $@ -$(OUT): $(SRC) $(DEP) $(OBJ) $(OBJP) - $(CC) -o $(OUT) $(OBJ) $(OBJP) +ldminfo: $(INFODEP) + $(CC) -o ldminfo $(INFODEP) + +sparse: + $(CC) -D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 sparse.c -o $@ clean: |
