1 files changed, 104 insertions, 0 deletions
diff --git a/debian/htdig/htdig-3.2.0b6/db/os_fid.c b/debian/htdig/htdig-3.2.0b6/db/os_fid.c
new file mode 100644
index 00000000..97f17370
--- /dev/null
+++ b/debian/htdig/htdig-3.2.0b6/db/os_fid.c
@@ -0,0 +1,104 @@
+/*-
+ * See the file LICENSE for redistribution information.
+ *
+ * Copyright (c) 1996, 1997, 1998, 1999
+ *	Sleepycat Software.  All rights reserved.
+ */
+
+#include "db_config.h"
+
+#ifndef lint
+static const char sccsid[] = "@(#)os_fid.c	11.1 (Sleepycat) 7/25/99";
+#endif /* not lint */
+
+#ifndef NO_SYSTEM_INCLUDES
+#include <sys/types.h>
+#include <sys/stat.h>
+
+#if TIME_WITH_SYS_TIME
+#include <sys/time.h>
+#include <time.h>
+#else
+#if HAVE_SYS_TIME_H
+#include <sys/time.h>
+#else
+#include <time.h>
+#endif
+#endif
+
+#include <string.h>
+#endif
+
+#include "db_int.h"
+
+/*
+ * CDB___os_fileid --
+ *	Return a unique identifier for a file.
+ *
+ * PUBLIC: int CDB___os_fileid __P((DB_ENV *, const char *, int, u_int8_t *));
+ */
+int
+CDB___os_fileid(dbenv, fname, timestamp, fidp)
+	DB_ENV *dbenv;
+	const char *fname;
+	int timestamp;
+	u_int8_t *fidp;
+{
+	struct stat sb;
+	size_t i;
+	u_int32_t tmp;
+	u_int8_t *p;
+
+	/* Clear the buffer. */
+	memset(fidp, 0, DB_FILE_ID_LEN);
+
+	/* On POSIX/UNIX, use a dev/inode pair. */
+	if (stat(fname, &sb)) {
+		CDB___db_err(dbenv, "%s: %s", fname, strerror(CDB___os_get_errno()));
+		return (CDB___os_get_errno());
+	}
+
+	/*
+	 * !!!
+	 * Nothing is ever big enough -- on Sparc V9, st_ino, st_dev and the
+	 * time_t types are all 8 bytes.  As DB_FILE_ID_LEN is only 20 bytes,
+	 * we convert to a (potentially) smaller fixed-size type and use it.
+	 *
+	 * We don't worry about byte sexing or the actual variable sizes.
+	 *
+	 * When this routine is called from the DB access methods, it's only
+	 * called once -- whatever ID is generated when a database is created
+	 * is stored in the database file's metadata, and that is what is
+	 * saved in the mpool region's information to uniquely identify the
+	 * file.
+	 *
+	 * When called from the mpool layer this routine will be called each
+	 * time a new thread of control wants to share the file, which makes
+	 * things tougher.  As far as byte sexing goes, since the mpool region
+	 * lives on a single host, there's no issue of that -- the entire
+	 * region is byte sex dependent.  As far as variable sizes go, we make
+	 * the simplifying assumption that 32-bit and 64-bit processes will
+	 * get the same 32-bit values if we truncate any returned 64-bit value
+	 * to a 32-bit value.
+	 */
+	tmp = (u_int32_t)sb.st_ino;
+	for (p = (u_int8_t *)&tmp, i = sizeof(u_int32_t); i > 0; --i)
+		*fidp++ = *p++;
+
+	tmp = (u_int32_t)sb.st_dev;
+	for (p = (u_int8_t *)&tmp, i = sizeof(u_int32_t); i > 0; --i)
+		*fidp++ = *p++;
+
+	if (timestamp) {
+		/*
+		 * We want the number of seconds, not the high-order 0 bits,
+		 * so convert the returned time_t to a (potentially) smaller
+		 * fixed-size type.
+		 */
+		tmp = (u_int32_t)time(NULL);
+		for (p = (u_int8_t *)&tmp, i = sizeof(u_int32_t); i > 0; --i)
+			*fidp++ = *p++;
+	}
+
+	return (0);
+}