Update.

2003-11-07  Jakub Jelinek  <jakub@redhat.com>

	* io/ftw.c (NFTW_OLD_NAME, NFTW_NEW_NAME): Define.
	(ftw_dir, ftw_startup): Add __attribute ((noinline)).
	(NFTW_OLD_NAME, NFTW_NEW_NAME): New functions.
	(NFTW_NAME): Only define if !_LIBC, add versioned_symbol
	and compat_symbol.
	* io/ftw64.c (NFTW_OLD_NAME, NFTW_NEW_NAME): Define.
	* io/Versions (libc): Export nftw@@GLIBC_2.3.3
	and nftw64@@GLIBC_2.3.3.

	* io/ftw.h (FTW_ACTIONRETVAL): New flag.
	(FTW_CONTINUE, FTW_STOP, FTW_SKIP_SUBTREE, FTW_SKIP_SIBLINGS): New.
	* io/ftw.c (ftw_dir): Add old_dir argument.
	Clear result if it was FTW_SKIP_SIBLINGS after processing all
	dir entries.  Change cwd back if old_dir != NULL.
	(process_entry): Adjust caller.  Don't change cwd back here.
	Change FTW_SKIP_SUBTREE result to 0.
	(ftw_startup): Adjust ftw_dir caller.
	Clear result if it was FTW_SKIP_SUBTREE or FTW_SKIP_SIBLINGS.
	* io/ftwtest.c (skip_subtree, skip_siblings): New variables.
	(options, main): Add --skip-subtree and --skip-siblings options.
	(cb): Use return FTW_CONTINUE instead of return 0.
	Handle --skip-subtree and --skip-siblings.
	* io/ftwtest-sh: Add tests for FTW_ACTIONRETVAL.
	* manual/filesys.texi: Document FTW_ACTIONRETVAL.

1 files changed, 28 insertions, 3 deletions

diff --git a/io/ftwtest.c b/io/ftwtest.c
index 4f52799..77debd2 100644
--- a/io/ftwtest.c
+++ b/io/ftwtest.c
@@ -12,12 +12,16 @@ int do_depth;
 int do_chdir;
 int do_phys;
 int do_exit;
+char *skip_subtree;
+char *skip_siblings;
 
 struct option options[] =
 {
   { "depth", no_argument, &do_depth, 1 },
   { "chdir", no_argument, &do_chdir, 1 },
   { "phys", no_argument, &do_phys, 1 },
+  { "skip-subtree", required_argument, NULL, 't' },
+  { "skip-siblings", required_argument, NULL, 's' },
   { "early-exit", no_argument, &do_exit, 1 },
   { NULL, 0, NULL, 0 }
 };
@@ -38,7 +42,7 @@ static int
 cb (const char *name, const struct stat *st, int flag, struct FTW *f)
 {
   if (do_exit && strcmp (name + f->base, "file@2"))
-    return 0;
+    return FTW_CONTINUE;
 
   printf ("base = \"%.*s\", file = \"%s\", flag = %s",
 	  f->base, name, name + f->base, flag2name[flag]);
@@ -49,7 +53,14 @@ cb (const char *name, const struct stat *st, int flag, struct FTW *f)
       free (cwd);
     }
   printf (", level = %d\n", f->level);
-  return do_exit ? 26 : 0;
+
+  if (skip_siblings && strcmp (name + f->base, skip_siblings) == 0)
+    return FTW_SKIP_SIBLINGS;
+
+  if (skip_subtree && strcmp (name + f->base, skip_subtree) == 0)
+    return FTW_SKIP_SUBTREE;
+
+  return do_exit ? 26 : FTW_CONTINUE;
 }
 
 int
@@ -61,7 +72,12 @@ main (int argc, char *argv[])
   mtrace ();
 
   while ((opt = getopt_long_only (argc, argv, "", options, NULL)) != -1)
-    ;
+    {
+      if (opt == 't')
+        skip_subtree = optarg;
+      else if (opt == 's')
+        skip_siblings = optarg;
+    }
 
   if (do_chdir)
     flag |= FTW_CHDIR;
@@ -69,6 +85,15 @@ main (int argc, char *argv[])
     flag |= FTW_DEPTH;
   if (do_phys)
     flag |= FTW_PHYS;
+  if (skip_subtree || skip_siblings)
+    {
+      flag |= FTW_ACTIONRETVAL;
+      if (do_exit)
+	{
+	  printf ("--early-exit cannot be used together with --skip-{siblings,subtree}");
+	  exit (1);
+	}
+    }
 
   char *cw1 = getcwd (NULL, 0);