illumos gate

The best course of action seems to be to replace the glob() function in libc with the Openbsd version, while retaining compatibility with existing callers. This change introduces a well-tested function that contains both POSIX and non-POSIX features.

I'm attaching two diff files. `glob.c-ill.diff' contains the content changes to adapt the Openbsd version of glob.c to illumos. `glob.c-sty.diff' contains the subsequent style changes. A webrev will be posted shortly.

I've updated the two diff files slightly.

The BSD-derived glob() had no support for international character sets. It stored 8-bit characters and flag bits within a single word. I've changed this data structure into a struct with separate members for a wide character and for a flag word. It also uses library functions to convert between wide characters and multi-byte characters. The file `glob.c-mb.diff' contains these changes.

I've made a few more changes to improve the international character handling. I've also fixed a few incorrect return values. The new file `glob.c-mb.diff' contains these changes.

I've changed the comparison test for character classes to use the library functions wctype() and iswctype(), simplifying the code in glob.c . The file glob.c-isw.diff contains these changes.

One more small change, this one to replace wctomb() by iswascii() . See the attached file glob.c-asc.diff for details.

Here are some more changes to glob.c, in response to reviewer's comments. The file `glob.c-rev.diff' contains these changes.

One more change, this one to supply the remaining buffer length to mbtowc() instead of a fixed value. See the file `glob.c-len.diff' for details.

The file /tmp/glob.c-w9.diff contains changes to glob.c to permit the library function to differentiate between legacy and extended callers, along with a number of other small changes suggested by the Advocates.

Dan McDonald: Just pushed it.