X-Git-Url: https://git.wh0rd.org/?p=dump.git;a=blobdiff_plain;f=dump%2Ftraverse.c;h=80d7e86bf17e18441bb28cf38ac708f59d5d516b;hp=975f6f82e3bf8957c28dd937a68a68ce05ffd905;hb=e51470bfc05d83f82c37d24504220c7163bbd4c1;hpb=1df5c692513d8067e0892398e1301b7eb8bba2a1

diff --git a/dump/traverse.c b/dump/traverse.c
index 975f6f8..80d7e86 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 1.38 2001/08/17 09:55:09 stelian Exp $";
+	"$Id: traverse.c,v 1.41 2002/01/25 14:59:53 stelian Exp $";
 #endif /* not lint */
 
 #include <config.h>
@@ -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?")){