Add _PC_CASE_INSENSITIVE flag to pathconf

[Ken Brown <kbrown at cornell dot edu>]

Patch attached.

I tested it by running getconf.exe, and also as follows:

$ cat case_sens_test.c
#include <unistd.h>
#include <stdio.h>

void
test (const char *path)
{
  int ret = pathconf (path, _PC_CASE_INSENSITIVE);
  printf ("pathconf (\"%s\", _PC_CASE_INSENSITIVE) returns %d\n", path, 
ret);
  if (ret == -1)
    perror ("  pathconf");
}

int
main ()
{
  test ("/tmp");
  test ("/tmp/a");
  test ("/cygdrive/c/cygwin");
  test ("/");
  test (".");
}

$ gcc case_sens_test.c

$ ./a
pathconf ("/tmp", _PC_CASE_INSENSITIVE) returns 0
pathconf ("/tmp/a", _PC_CASE_INSENSITIVE) returns -1
  pathconf: No such file or directory
pathconf ("/cygdrive/c/cygwin", _PC_CASE_INSENSITIVE) returns 1
pathconf ("/", _PC_CASE_INSENSITIVE) returns 0
pathconf (".", _PC_CASE_INSENSITIVE) returns 0

This test was done, obviously, on a system with the obcaseinsensitive 
registry key set to 0, and with /tmp/a non-existent.  I also tested with 
the registry key set to 1, with the expected results.

Ken

Attachment: 0001-Add-_PC_CASE_INSENSITIVE-to-f-pathconf.patch
Description: Text document