From 13bcc37c0233d321e580cd3d82f6a958d07fea89 Mon Sep 17 00:00:00 2001
From: "David E. O'Brien" <obrien@FreeBSD.org>
Date: Thu, 27 Aug 1998 02:56:47 +0000
Subject: [PATCH] Properly create db files vs. dbm files.

Obtained from:	NetBSD
---
 contrib/amd/mk-amd-map/mk-amd-map.c | 51 ++++++++++-------------------
 1 file changed, 18 insertions(+), 33 deletions(-)

diff --git a/contrib/amd/mk-amd-map/mk-amd-map.c b/contrib/amd/mk-amd-map/mk-amd-map.c
index 3eba7b293b4b..45f47a6a1a2a 100644
--- a/contrib/amd/mk-amd-map/mk-amd-map.c
+++ b/contrib/amd/mk-amd-map/mk-amd-map.c
@@ -38,7 +38,7 @@
  *
  *      %W% (Berkeley) %G%
  *
- * $Id: mk-amd-map.c,v 1.1.1.1 1998/08/23 22:07:21 obrien Exp $
+ * $Id: mk-amd-map.c,v 1.2 1998/08/23 22:52:09 obrien Exp $
  */
 
 /*
@@ -51,7 +51,6 @@
 #include <am_defs.h>
 
 /* dummy variables */
-char *progname;
 char hostname[MAXHOSTNAMELEN];
 int orig_umask, foreground, debug_flags;
 pid_t mypid;
@@ -219,8 +218,8 @@ main(int argc, char *argv[])
   int rc = 0;
   DBM *mapd = NULL;
   static char maptmp[] = "dbmXXXXXX";
-  char maptpag[16], maptdir[16];
-  char *mappag = (char *) NULL, *mapdir = (char *) NULL;
+  char maptdb[16];
+  char *mapdb = (char *) NULL;
   int len;
   char *sl;
   int printit = 0;
@@ -259,9 +258,8 @@ main(int argc, char *argv[])
 
   if (!printit) {
     len = strlen(map);
-    mappag = (char *) malloc(len + 5);
-    mapdir = (char *) malloc(len + 5);
-    if (!mappag || !mapdir) {
+    mapdb = (char *) malloc(len + 4);
+    if (!mapdb) {
       perror("mk-amd-map: malloc");
       exit(1);
     }
@@ -277,11 +275,10 @@ main(int argc, char *argv[])
 #endif /* not HAVE_MKSTEMP */
 
     /* open DBM files */
-    sprintf(maptpag, "%s.pag", maptmp);
-    sprintf(maptdir, "%s.dir", maptmp);
-    if (remove_file(maptpag) < 0 || remove_file(maptdir) < 0) {
-      fprintf(stderr, "Can't remove existing temporary files; %s and", maptpag);
-      perror(maptdir);
+    sprintf(maptdb, "%s.db", maptmp);
+    if (remove_file(maptdb) < 0) {
+      fprintf(stderr, "Can't remove existing temporary files;");
+      perror(maptdb);
       exit(1);
     }
   }
@@ -301,7 +298,7 @@ main(int argc, char *argv[])
     int error = read_file(mapf, map, mapd);
     (void) close(mapfd);
     (void) fclose(mapf);
-	dbm_close(mapd);
+    dbm_close(mapd);
     if (printit) {
       if (error) {
 	fprintf(stderr, "Error creating ndbm map for %s\n", map);
@@ -313,33 +310,21 @@ main(int argc, char *argv[])
 	fprintf(stderr, "Error reading source file  %s\n", map);
 	rc = 1;
       } else {
-	sprintf(mappag, "%s.pag", map);
-	sprintf(mapdir, "%s.dir", map);
-	if (rename(maptpag, mappag) < 0) {
-	  fprintf(stderr, "Couldn't rename %s to ", maptpag);
-	  perror(mappag);
+	sprintf(mapdb, "%s.db", map);
+	if (unlink(mapdb) == 0)
+	  fprintf(stderr, "WARNING: existing map \"%s.db\" destroyed\n", map);
+	if (rename(maptdb, mapdb) < 0) {
+	  fprintf(stderr, "Couldn't rename %s to ", maptdb);
+	  perror(mapdb);
 	  /* Throw away the temporary map */
-	  unlink(maptpag);
-	  unlink(maptdir);
-	  rc = 1;
-
-	} else if (rename(maptdir, mapdir) < 0) {
-	  fprintf(stderr, "Couldn't rename %s to ", maptdir);
-	  perror(mapdir);
-	  /* Put the .pag file back */
-	  rename(mappag, maptpag);
-	  /* Throw away remaining part of original map */
-	  unlink(mapdir);
-	  fprintf(stderr,
-		  "WARNING: existing map \"%s.{dir,pag}\" destroyed\n",
-		  map);
+	  unlink(maptdb);
 	  rc = 1;
 	}
       }
     }
 
   } else {
-    fprintf(stderr, "Can't open \"%s.{dir,pag}\" for ", map);
+    fprintf(stderr, "Can't open \"%s.db\" for ", map);
     perror("writing");
     rc = 1;
   }