* dir.cc (mkdir): Check for case clash.

        * environ.cc: Add extern declaration for `pcheck_case'.
        (check_case_init): New function.
        (struct parse_thing): Add "check_case" option.
        * errno.cc (_sys_nerrlist): Add text for ECASECLASH.
        (strerror): Add case branch for ECASECLASH.
        * fhandler.cc (fhandler_disk_file::open): Check for case clash.
        * path.cc: Add global variable `pcheck_case'.
        (struct symlink_info): Add member `case_clash' and method `case_check'.
        (path_prefix_p_): Call `pathnmatch' instead of `strncasematch'.
        (pathnmatch): New funtion.
        (pathmatch): Ditto.
        (path_conv::check): Add handling for case checking.
        (symlink): Check for case clash.
        (symlink_info::check): Add parameter for case checking.
        Handle case checking.
        (symlink_info::case_check): New method.
        (chdir): Don't use unconverted path if pcheck_case==PCHECK_STRICT.
        * path.h: Add extern declarations for `pathmatch' and
        `pathnmatch'.
        (enum case_checking): New enumeration type describing
        the case checking behaviour of path conversion routines.
        (class path_conv): Add member `case_clash'.
        * syscalls.cc (_link): Check for case clash.

1 files changed, 29 insertions, 0 deletions

diff --git a/winsup/cygwin/environ.cc b/winsup/cygwin/environ.cc
index 43b246e27..2f8e350d8 100644
--- a/winsup/cygwin/environ.cc
+++ b/winsup/cygwin/environ.cc
@@ -32,6 +32,7 @@ extern BOOL allow_ntea;
 extern BOOL allow_smbntsec;
 extern BOOL allow_winsymlinks;
 extern BOOL strip_title_path;
+extern int pcheck_case;
 extern DWORD chunksize;
 BOOL reset_com = TRUE;
 static BOOL envcache = TRUE;
@@ -394,6 +395,33 @@ glob_init (const char *buf)
 }
 
 static void
+check_case_init (const char *buf)
+{
+  if (!buf || !*buf)
+    return;
+
+  if (strncmp (buf, "relax", 5)== 0)
+    {
+      pcheck_case = PCHECK_RELAXED;
+      debug_printf ("File case checking set to RELAXED");
+    }
+  else if (strcmp (buf, "adjust")== 0)
+    {
+      pcheck_case = PCHECK_ADJUST;
+      debug_printf ("File case checking set to ADJUST");
+    }
+  else if (strcmp (buf, "strict")== 0)
+    {
+      pcheck_case = PCHECK_STRICT;
+      debug_printf ("File case checking set to STRICT");
+    }
+  else
+    {
+      debug_printf ("Wrong case checking name: %s", buf);
+    }
+}
+
+static void
 codepage_init (const char *buf)
 {
   if (!buf || !*buf)
@@ -441,6 +469,7 @@ struct parse_thing
   } known[] =
 {
   {"binmode", {x: &binmode}, justset, NULL, {{O_TEXT}, {O_BINARY}}},
+  {"check_case", {func: &check_case_init}, isfunc, NULL, {{0}, {0}}},
   {"codepage", {func: &codepage_init}, isfunc, NULL, {{0}, {0}}},
   {"envcache", {&envcache}, justset, NULL, {{TRUE}, {FALSE}}},
   {"error_start", {func: &error_start_init}, isfunc, NULL, {{0}, {0}}},