Improve handling of -u in gdbm_load

* tools/gdbm_load.c (main): Imply the owner login group if owner name
is followed by a :, and the current login group otherwise.
* doc/gdbm.texi: Document changes.

1 files changed, 7 insertions, 2 deletions

diff --git a/tools/gdbm_load.c b/tools/gdbm_load.c
index 5d5e50e..e7e2ab1 100644
--- a/tools/gdbm_load.c
+++ b/tools/gdbm_load.c
@@ -148,9 +148,10 @@ main (int argc, char **argv)
 	{
 	  size_t len;
 	  struct passwd *pw;
+	  int delim;
 	  
 	  len = strcspn (optarg, ".:");
-	  if (optarg[len])
+	  if ((delim = optarg[len]) != 0)
 	    optarg[len++] = 0;
 	  pw = getpwnam (optarg);
 	  if (pw)
@@ -187,7 +188,7 @@ main (int argc, char **argv)
 		    }
 		}
 	    }
-	  else
+	  else if (delim)
 	    {
 	      if (!pw)
 		{
@@ -200,6 +201,10 @@ main (int argc, char **argv)
 		}
 	      owner_gid = pw->pw_gid;
 	    }
+	  else
+	    {
+	      owner_gid = getgid();
+	    }
 	  meta_mask |= GDBM_META_MASK_OWNER;
 	}
 	break;