7d5d232b50
for new path API. * security.sgml: New file to document cygwin_set_impersonation_token and cygwin_logon_user with only eight years of delay. * shared.sgml: Remove file. * include/sys/cygwin.h (cygwin32_attach_handle_to_fd): Move declaration into fully deprecated function block. (cygwin_logon_user): Move declaration down to declaration of cygwin_set_impersonation_token.
176 lines
6.5 KiB
Plaintext
176 lines
6.5 KiB
Plaintext
<sect1 id="func-cygwin-conv-path">
|
|
<title>cygwin_conv_path</title>
|
|
|
|
<funcsynopsis><funcprototype>
|
|
<funcdef>extern "C" ssize_t
|
|
<function>cygwin_conv_path</function></funcdef>
|
|
<paramdef>cygwin_conv_path_t <parameter>what</parameter></paramdef>
|
|
<paramdef>const void * <parameter>from</parameter></paramdef>
|
|
<paramdef>void * <parameter>to</parameter></paramdef>
|
|
<paramdef>size_t <parameter>size</parameter></paramdef>
|
|
</funcprototype></funcsynopsis>
|
|
|
|
<para>Use this function to convert POSIX paths in
|
|
<parameter>from</parameter> to Win32 paths in <parameter>to</parameter>
|
|
or, vice versa, Win32 paths in <parameter>from</parameter> to POSIX paths
|
|
in <parameter>to</parameter>. <parameter>what</parameter>
|
|
defines the direction of this conversion and can be any of the below
|
|
values.</para>
|
|
|
|
<programlisting>
|
|
CCP_POSIX_TO_WIN_A /* from is char *posix, to is char *win32 */
|
|
CCP_POSIX_TO_WIN_W, /* from is char *posix, to is wchar_t *win32 */
|
|
CCP_WIN_A_TO_POSIX, /* from is char *win32, to is char *posix */
|
|
CCP_WIN_W_TO_POSIX, /* from is wchar_t *win32, to is char *posix */
|
|
</programlisting>
|
|
|
|
<para>You can additionally or the following values to
|
|
<parameter>what</parameter>, to define whether you want the resulting
|
|
path in <parameter>to</parameter> to be absolute or if you want to keep
|
|
relative paths in relative notation. Creating absolute paths is the
|
|
default.</para>
|
|
|
|
<programlisting>
|
|
CCP_ABSOLUTE = 0, /* Request absolute path (default). */
|
|
CCP_RELATIVE = 0x100 /* Request to keep path relative. */
|
|
</programlisting>
|
|
|
|
<para>If <parameter>size</parameter> is 0,
|
|
<function>cygwin_conv_path</function> just returns the required buffer
|
|
size in bytes. Otherwise, it returns 0 on success, or -1 on error and
|
|
errno is set to one of the below values.</para>
|
|
|
|
<programlisting>
|
|
EINVAL what has an invalid value.
|
|
EFAULT from or to point into nirvana.
|
|
ENAMETOOLONG the resulting path is longer than 32K, or, in case
|
|
of what == CCP_POSIX_TO_WIN_A, longer than MAX_PATH.
|
|
ENOSPC size is less than required for the conversion.
|
|
</programlisting>
|
|
|
|
<example>
|
|
<title>Example use of cygwin_conv_path</title>
|
|
<programlisting>
|
|
<![CDATA[
|
|
#include <sys/cygwin.h>
|
|
|
|
/* Conversion from incoming Win32 path given as wchar_t *win32 to POSIX path.
|
|
If incoming path is a relative path, stick to it. First ask how big
|
|
the output buffer has to be and allocate space dynamically. */
|
|
ssize_t size;
|
|
char *posix;
|
|
size = cygwin_conv_path (CCP_WIN_W_TO_POSIX | CCP_RELATIVE, win32, NULL, 0);
|
|
if (size < 0)
|
|
perror ("cygwin_conv_path");
|
|
else
|
|
{
|
|
posix = (char *) malloc (size);
|
|
if (cygwin_conv_path (CCP_WIN_W_TO_POSIX | CCP_RELATIVE, win32,
|
|
posix, size))
|
|
perror ("cygwin_conv_path");
|
|
}
|
|
]]>
|
|
</programlisting>
|
|
</example>
|
|
|
|
</sect1>
|
|
|
|
<sect1 id="func-cygwin-conv-path-list">
|
|
<title>cygwin_conv_path_list</title>
|
|
|
|
<funcsynopsis><funcprototype>
|
|
<funcdef>extern "C" ssize_t
|
|
<function>cygwin_conv_path</function></funcdef>
|
|
<paramdef>cygwin_conv_path_t <parameter>what</parameter></paramdef>
|
|
<paramdef>const void * <parameter>from</parameter></paramdef>
|
|
<paramdef>void * <parameter>to</parameter></paramdef>
|
|
<paramdef>size_t <parameter>size</parameter></paramdef>
|
|
</funcprototype></funcsynopsis>
|
|
|
|
<para>This is the same as <function>cygwin_conv_path</function>, but the
|
|
input is treated as a path list in $PATH or %PATH% notation.</para>
|
|
<para>If <parameter>what</parameter> is CCP_POSIX_TO_WIN_A or
|
|
CCP_POSIX_TO_WIN_W, given a POSIX $PATH-style string (i.e. /foo:/bar)
|
|
convert it to the equivalent Win32 %PATH%-style string (i.e. d:\;e:\bar).</para>
|
|
<para>If <parameter>what</parameter> is CCP_WIN_A_TO_POSIX or
|
|
CCP_WIN_W_TO_POSIX, given a Win32 %PATH%-style string (i.e. d:\;e:\bar)
|
|
convert it to the equivalent POSIX $PATH-style string (i.e. /foo:/bar).</para>
|
|
|
|
<para>See also <link linkend="func-cygwin-conv-path">cygwin_conv_path</link></para>
|
|
|
|
</sect1>
|
|
|
|
<sect1 id="func-cygwin-create-path">
|
|
<title>cygwin_create_path</title>
|
|
|
|
<funcsynopsis><funcprototype>
|
|
<funcdef>extern "C" void *
|
|
<function>cygwin_create_path</function></funcdef>
|
|
<paramdef>cygwin_conv_path_t <parameter>what</parameter></paramdef>
|
|
<paramdef>const void * <parameter>from</parameter></paramdef>
|
|
</funcprototype></funcsynopsis>
|
|
|
|
<para>This is equivalent to the <function>cygwin_conv_path</function>, except
|
|
that <function>cygwin_create_path</function> does not take a buffer pointer
|
|
for the result of the conversion as input. Rather it allocates the buffer
|
|
itself using <function>malloc</function>(3) and returns a pointer to this
|
|
buffer. In case of error it returns NULL and sets errno to one of the
|
|
values defined for <function>cygwin_conv_path</function>. Additionally
|
|
errno can be set to the below value.</para>
|
|
|
|
<programlisting>
|
|
ENOMEM Insufficient memory was available.
|
|
</programlisting>
|
|
|
|
<para>When you don't need the returned buffer anymore, use
|
|
<function>free</function>(3) to deallocate it.</para>
|
|
|
|
<para>See also <link linkend="func-cygwin-conv-path">cygwin_conv_path</link></para>
|
|
|
|
</sect1>
|
|
|
|
<sect1 id="func-cygwin-posix-path-list-p">
|
|
<title>cygwin_posix_path_list_p</title>
|
|
|
|
<funcsynopsis><funcprototype>
|
|
<funcdef>extern "C" int
|
|
<function>posix_path_list_p</function></funcdef>
|
|
<paramdef>const char *<parameter>path</parameter></paramdef>
|
|
</funcprototype></funcsynopsis>
|
|
|
|
<para>This function tells you if the supplied
|
|
<parameter>path</parameter> is a POSIX-style path (i.e. posix names,
|
|
forward slashes, colon delimiters) or a Win32-style path (drive
|
|
letters, reverse slashes, semicolon delimiters. The return value is
|
|
true if the path is a POSIX path. Note that "_p" means "predicate", a
|
|
lisp term meaning that the function tells you something about the
|
|
parameter.</para>
|
|
|
|
</sect1>
|
|
|
|
<sect1 id="func-cygwin-split-path">
|
|
<title>cygwin_split_path</title>
|
|
|
|
<funcsynopsis><funcprototype>
|
|
<funcdef>extern "C" void
|
|
<function>cygwin_split_path</function>
|
|
</funcdef>
|
|
<paramdef>const char * <parameter>path</parameter></paramdef>
|
|
<paramdef>char * <parameter>dir</parameter></paramdef>
|
|
<paramdef>char * <parameter>file</parameter></paramdef>
|
|
</funcprototype></funcsynopsis>
|
|
|
|
<para>Split a path into the directory and the file portions. Both
|
|
<parameter>dir</parameter> and <parameter>file</parameter> are
|
|
expected to point to buffers of sufficient size. </para>
|
|
|
|
<example>
|
|
<title>Example use of cygwin_split_path</title>
|
|
<programlisting>
|
|
char dir[200], file[100];
|
|
cygwin_split_path("c:/foo/bar.c", dir, file);
|
|
printf("dir=%s, file=%s\n", dir, file);
|
|
</programlisting>
|
|
</example>
|
|
</sect1>
|