Add support for some block functions that come from OS X. These are

intended to build with any C compiler.

Reviewed by:	pfg
MFC after:	3 weeks

1 files changed, 11 insertions, 0 deletions

diff --git a/lib/libc/gen/scandir.3 b/lib/libc/gen/scandir.3
index b3e0a7e19554..eaba7547fed3 100644
--- a/lib/libc/gen/scandir.3
+++ b/lib/libc/gen/scandir.3
@@ -42,6 +42,8 @@
 .Ft int
 .Fn scandir "const char *dirname" "struct dirent ***namelist" "int \*(lp*select\*(rp\*(lpconst struct dirent *\*(rp" "int \*(lp*compar\*(rp\*(lpconst struct dirent **, const struct dirent **\*(rp"
 .Ft int
+.Fn scandir_b "const char *dirname" "struct dirent ***namelist" "int \*(lp*select\^(rp\*(lpconst struct dirent *\*(rp" "int \*(lp^compar\*(rp\*(lpconst struct dirent **, const struct dirent **\*(rp"
+.Ft int
 .Fn alphasort "const struct dirent **d1" "const struct dirent **d2"
 .Sh DESCRIPTION
 The
@@ -87,6 +89,15 @@ argument to sort the array alphabetically using
 The memory allocated for the array can be deallocated with
 .Xr free 3 ,
 by freeing each pointer in the array and then the array itself.
+.Pp
+The
+.Fn scandir_b
+function behaves in the same way as 
+.Fn scandir ,
+but takes blocks as arguments instead of function pointers and calls
+.Fn qsort_b
+rather than
+.Fn qsort .
 .Sh DIAGNOSTICS
 Returns \-1 if the directory cannot be opened for reading or if
 .Xr malloc 3