[PATCH] Fix inconsistencies in docs regarding fstab and executable file detection
Sat Apr 18 21:25:00 GMT 2015
The inline list of mount options seemed redundant, so the paragraph now points
to the list below it.
List of executable extensions updated according to fhandler_disk_file.cc. List
of executable magic numbers updated according to path.h (has_exec_chars).
* pathnames.xml: Fix inconsistencies in docs regarding fstab and
executable file detection
winsup/doc/pathnames.xml | 13 ++++++-------
1 file changed, 6 insertions(+), 7 deletions(-)
diff --git a/winsup/doc/pathnames.xml b/winsup/doc/pathnames.xml
index 00eb133..cdbf9fa 100644
@@ -81,9 +81,8 @@ see <xref linkend="cygdrive"></xref></para>
<para>The fourth field describes the mount options associated
with the filesystem. It is formatted as a comma separated list of
options. It contains at least the type of mount (binary or text) plus
-any additional options appropriate to the filesystem type. Recognized
-options are binary, text, nouser, user, exec, notexec, cygexec, nosuid,
-posix=[0|1]. The meaning of the options is as follows.</para>
+any additional options appropriate to the filesystem type. The list of
+the options, including their meaning, follows.</para>
acl - Cygwin uses the filesystem's access control lists (ACLs) to
@@ -136,14 +135,14 @@ executability, this is not possible on filesystems which don't support
permissions at all (like FAT/FAT32), or if ACLs are ignored on filesystems
supporting them (see the aforementioned <literal>acl</literal> mount option).
In these cases, the following heuristic is used to evaluate if a file is
-executable: Files ending in certain extensions (.exe, .com, .bat, .btm,
-.cmd) are assumed to be executable. Files whose first two characters begin
-with '#!' are also considered to be executable.
+executable: Files ending in certain extensions (.exe, .com, .lnk) are
+assumed to be executable. Files whose first two characters are "#!", "MZ",
+or ":\n" are also considered to be executable.
The <literal>exec</literal> option is used to instruct Cygwin that the
mounted file is "executable". If the <literal>exec</literal> option is used
with a directory then all files in the directory are executable.
This option allows other files to be marked as executable and avoids the
-overhead of opening each file to check for a '#!'. The
+overhead of opening each file to check for "magic" bytes. The
<literal>cygexec</literal> option is very similar to <literal>exec</literal>,
but also prevents Cygwin from setting up commands and environment variables
for a normal Windows program, adding another small performance gain. The
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