1 files changed, 85 insertions, 0 deletions
diff --git a/contrib/perl5/ext/SDBM_File/sdbm/dba.c b/contrib/perl5/ext/SDBM_File/sdbm/dba.c
new file mode 100644
index 0000000..05e70c8
--- /dev/null
+++ b/contrib/perl5/ext/SDBM_File/sdbm/dba.c
@@ -0,0 +1,85 @@
+/*
+ * dba	dbm analysis/recovery
+ */
+
+#include <stdio.h>
+#include <sys/file.h>
+#include "EXTERN.h"
+#include "sdbm.h"
+
+char *progname;
+extern void oops();
+
+int
+main(argc, argv)
+char **argv;
+{
+	int n;
+	char *p;
+	char *name;
+	int pagf;
+
+	progname = argv[0];
+
+	if (p = argv[1]) {
+		name = (char *) malloc((n = strlen(p)) + 5);
+		strcpy(name, p);
+		strcpy(name + n, ".pag");
+
+		if ((pagf = open(name, O_RDONLY)) < 0)
+			oops("cannot open %s.", name);
+
+		sdump(pagf);
+	}
+	else
+		oops("usage: %s dbname", progname);
+
+	return 0;
+}
+
+sdump(pagf)
+int pagf;
+{
+	register b;
+	register n = 0;
+	register t = 0;
+	register o = 0;
+	register e;
+	char pag[PBLKSIZ];
+
+	while ((b = read(pagf, pag, PBLKSIZ)) > 0) {
+		printf("#%d: ", n);
+		if (!okpage(pag))
+			printf("bad\n");
+		else {
+			printf("ok. ");
+			if (!(e = pagestat(pag)))
+			    o++;
+			else
+			    t += e;
+		}
+		n++;
+	}
+
+	if (b == 0)
+		printf("%d pages (%d holes):  %d entries\n", n, o, t);
+	else
+		oops("read failed: block %d", n);
+}
+
+pagestat(pag)
+char *pag;
+{
+	register n;
+	register free;
+	register short *ino = (short *) pag;
+
+	if (!(n = ino[0]))
+		printf("no entries.\n");
+	else {
+		free = ino[n] - (n + 1) * sizeof(short);
+		printf("%3d entries %2d%% used free %d.\n",
+		       n / 2, ((PBLKSIZ - free) * 100) / PBLKSIZ, free);
+	}
+	return n / 2;
+}