X-Git-Url: https://git.wh0rd.org/?p=dump.git;a=blobdiff_plain;f=dump%2Ftraverse.c;h=147717ad37095eb80a40032550f92f39ec80ac6e;hp=a8ca3a4f08cba32c08b0b418be65712bc516d410;hb=5d2a3d246d400d45dfd4c49ddb588c69fb60873d;hpb=54ec08c6ea42e9189423def508c5119f33466db2

diff --git a/dump/traverse.c b/dump/traverse.c
index a8ca3a4..147717a 100644
--- a/dump/traverse.c
+++ b/dump/traverse.c
@@ -2,8 +2,8 @@
  *	Ported to Linux's Second Extended File System as part of the
  *	dump and restore backup suit
  *	Remy Card <card@Linux.EU.Org>, 1994-1997
- *	Stelian Pop <pop@noos.fr>, 1999-2000
- *	Stelian Pop <pop@noos.fr> - Alcôve <www.alcove.fr>, 2000
+ *	Stelian Pop <stelian@popies.net>, 1999-2000
+ *	Stelian Pop <stelian@popies.net> - Alcôve <www.alcove.com>, 2000-2002
  */
 
 /*-
@@ -41,7 +41,7 @@
 
 #ifndef lint
 static const char rcsid[] =
-	"$Id: traverse.c,v 1.37 2001/07/19 09:49:35 stelian Exp $";
+	"$Id: traverse.c,v 1.42 2002/01/25 15:08:59 stelian Exp $";
 #endif /* not lint */
 
 #include <config.h>
@@ -241,7 +241,7 @@ blockest(struct dinode const *dp)
 static void
 mapfileino(dump_ino_t ino, struct dinode const *dp, long *tapesize, int *dirskipped)
 {
-	register int mode;
+	int mode;
 
 	/*
 	 * Skip inode if we've already marked it for dumping
@@ -335,7 +335,7 @@ mapfiles(dump_ino_t maxino, long *tapesize)
 int
 mapfiles(dump_ino_t maxino, long *tapesize)
 {
-	register dump_ino_t ino;
+	dump_ino_t ino;
 	int anydirskipped = 0;
 
 	for (ino = ROOTINO; ino < maxino; ino++)
@@ -407,8 +407,8 @@ struct mapfile_context {
 static int
 mapfilesindir(struct ext2_dir_entry *dirent, int offset, int blocksize, char *buf, void *private)
 {
-	register struct dinode const *dp;
-	register int mode;
+	struct dinode const *dp;
+	int mode;
 	errcode_t retval;
 	struct mapfile_context *mfc;
 	ext2_ino_t ino;
@@ -522,12 +522,12 @@ struct mapdirs_context {
 int
 mapdirs(dump_ino_t maxino, long *tapesize)
 {
-	register struct	dinode *dp;
-	register int isdir;
-	register char *map;
-	register dump_ino_t ino;
+	struct	dinode *dp;
+	int isdir;
+	char *map;
+	dump_ino_t ino;
 #ifndef __linux__
-	register int i;
+	int i;
 	long filesize;
 #else
 	struct mapdirs_context mdc;
@@ -606,7 +606,7 @@ static int
 dirindir(dump_ino_t ino, daddr_t blkno, int ind_level, long *filesize)
 {
 	int ret = 0;
-	register int i;
+	int i;
 	daddr_t	idblk[MAXNINDIR];
 
 	bread(fsbtodb(sblock, blkno), (char *)idblk, (int)sblock->fs_bsize);
@@ -691,8 +691,8 @@ searchdir(struct ext2_dir_entry *dp, int offset, int blocksize, char *buf, void
 static int
 searchdir(dump_ino_t ino, daddr_t blkno, long size, long filesize)
 {
-	register struct direct *dp;
-	register long loc, ret = 0;
+	struct direct *dp;
+	long loc, ret = 0;
 	char dblk[MAXBSIZE];
 
 	bread(fsbtodb(sblock, blkno), dblk, (int)size);
@@ -898,8 +898,8 @@ dumpino(struct dinode *dp, dump_ino_t ino)
 
 	ext2fs_block_iterate2(fs, (ext2_ino_t)ino, 0, NULL, dumponeblock, (void *)&bc);
 	/* deal with holes at the end of the inode */
-	if (i_size > bc.next_block*sblock->fs_fsize) {
-		remaining = i_size - bc.next_block*sblock->fs_fsize;
+	if (i_size > ((u_quad_t)bc.next_block) * sblock->fs_fsize) {
+		remaining = i_size - ((u_quad_t)bc.next_block) * sblock->fs_fsize;
 		for (i = 0; i < howmany(remaining, sblock->fs_fsize); i++) {
 			bc.buf[bc.cnt++] = 0;
 			if (bc.cnt == bc.max) {
@@ -1130,7 +1130,7 @@ dmpindir(dump_ino_t ino, daddr_t blk, int ind_level, fsizeT *size)
 void
 blksout(daddr_t *blkp, int frags, dump_ino_t ino)
 {
-	register daddr_t *bp;
+	daddr_t *bp;
 	int i, j, count, blks, tbperdb;
 
 	blks = howmany(frags * sblock->fs_fsize, TP_BSIZE);
@@ -1166,7 +1166,7 @@ blksout(daddr_t *blkp, int frags, dump_ino_t ino)
 void
 dumpmap(char *map, int type, dump_ino_t ino)
 {
-	register int i;
+	int i;
 	char *cp;
 
 	spcl.c_type = type;
@@ -1176,21 +1176,20 @@ dumpmap(char *map, int type, dump_ino_t ino)
 		writerec(cp, 0);
 }
 
-/*
- * Write a header record to the dump tape.
- */
 #if defined __linux__ && !defined(int32_t)
 #define int32_t __s32
 #endif
+
+/* 
+ * Compute and fill in checksum information.
+ */
 void
-writeheader(dump_ino_t ino)
+mkchecksum(union u_spcl *tmpspcl) 
 {
-	register int32_t sum, cnt, *lp;
+	int32_t sum, cnt, *lp;
 
-	spcl.c_inumber = ino;
-	spcl.c_magic = NFS_MAGIC;
-	spcl.c_checksum = 0;
-	lp = (int32_t *)&spcl;
+	tmpspcl->s_spcl.c_checksum = 0;
+	lp = (int32_t *)&tmpspcl->s_spcl;
 	sum = 0;
 	cnt = sizeof(union u_spcl) / (4 * sizeof(int32_t));
 	while (--cnt >= 0) {
@@ -1199,7 +1198,18 @@ writeheader(dump_ino_t ino)
 		sum += *lp++;
 		sum += *lp++;
 	}
-	spcl.c_checksum = CHECKSUM - sum;
+	tmpspcl->s_spcl.c_checksum = CHECKSUM - sum;
+}
+
+/*
+ * Write a header record to the dump tape.
+ */
+void
+writeheader(dump_ino_t ino)
+{
+	spcl.c_inumber = ino;
+	spcl.c_magic = NFS_MAGIC;
+	mkchecksum((union u_spcl *)&spcl);
 	writerec((char *)&spcl, 1);
 }
 
@@ -1239,11 +1249,10 @@ getino(dump_ino_t inum)
 /*
  * Read a chunk of data from the disk.
  * Try to recover from hard errors by reading in sector sized pieces.
- * Error recovery is attempted at most BREADEMAX times before seeking
+ * Error recovery is attempted at most breademax times before seeking
  * consent from the operator to continue.
  */
 int	breaderrors = 0;
-#define	BREADEMAX 32
 
 void
 bread(daddr_t blkno, char *buf, int size)
@@ -1282,9 +1291,9 @@ loop:
 	else
 		msg("short read error from %s: [block %d]: count=%d, got=%d\n",
 			disk, blkno, size, cnt);
-	if (++breaderrors > BREADEMAX) {
+	if (++breaderrors > breademax) {
 		msg("More than %d block read errors from %d\n",
-			BREADEMAX, disk);
+			breademax, disk);
 		broadcast("DUMP IS AILING!\n");
 		msg("This is an unrecoverable error.\n");
 		if (!query("Do you want to attempt to continue?")){