From: cgf AT bbc DOT com (Christopher Faylor)
Subject: Re: cygwinb19.1.dll sh.exe still won't run shell scripts from path + workaround
19 Mar 1998 21:11:12 -0800
Message-ID: <199803191336.IAA00670.cygnus.cygwin32.developers@hardy.bbc.com>
To: jeffdb AT netzone DOT com
Cc: cygwin32-developers AT cygnus DOT com

Looks good to me.

cgf

>--- fhandler.cc	1998/03/19 07:38:31	1.1
>+++ fhandler.cc	1998/03/19 07:13:33
>@@ -1086,6 +1086,25 @@
> 
>   res = this->fhandler_base::open (real_path.get_win32 (), flags, mode);
> 
>+
>+  if ((get_os_type () != winNT) && (!real_path.exec_p))
>+    {
>+    DWORD done;
>+    char magic[2];
>+    /* FIXME should we use /etc/magic ? */
>+    magic[0] = magic[1] = magic[2] = '\0';
>+    ReadFile (get_handle (), magic, 3, &done, 0);
>+    if (magic[0] == ':' && magic[1] == '\n')
>+        real_path.exec_p = 1;
>+
>+    if (magic[0] == '#' && magic[1] == '!')
>+        real_path.exec_p = 1;
>+    if (flags & O_APPEND)
>+      SetFilePointer (get_handle(), 0, 0, FILE_END);
>+    else
>+      SetFilePointer (get_handle(), 0, 0, FILE_BEGIN);
>+    }
>+
>   symlink_p_ = real_path.symlink_p;
>   execable_p_ = real_path.exec_p;
> 
>@@ -1255,9 +1274,9 @@
> 
>   if (strcasecmp (".bat", ch) == 0
>       || strcasecmp (".exe", ch) == 0
>-      || strcasecmp (".com", ch) == 0)
>+      || strcasecmp (".com", ch) == 0
>+      || strcasecmp (".shc", ch) == 0) /* file associate sh -c == ShellScript */
>     return 1;
>-
>   return 0;
> }
> 
>
>This is fairly quick, I actually didn't notice any difference,
>and it seems to work correctly for both : and #! for ash.exe/sh.exe
>bash dosen't like :\n for some reason. bash bug?