summaryrefslogtreecommitdiffstats
path: root/debian/htdig/htdig-3.2.0b6/db/os_fid.c
diff options
context:
space:
mode:
authorSlávek Banko <[email protected]>2021-11-05 13:28:23 +0100
committerSlávek Banko <[email protected]>2021-11-05 13:28:23 +0100
commit8c787c3591c1c885b91a54128835b400858c5cca (patch)
treeeca1b776912a305c4d45b3964038278a2fae1ead /debian/htdig/htdig-3.2.0b6/db/os_fid.c
parentfe188b907cdf30dfdfe0eba9412e7f8749fec158 (diff)
downloadextra-dependencies-8c787c3591c1c885b91a54128835b400858c5cca.tar.gz
extra-dependencies-8c787c3591c1c885b91a54128835b400858c5cca.zip
DEB htdig: Added to repository.
Signed-off-by: Slávek Banko <[email protected]>
Diffstat (limited to 'debian/htdig/htdig-3.2.0b6/db/os_fid.c')
-rw-r--r--debian/htdig/htdig-3.2.0b6/db/os_fid.c104
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);
+}