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/* path.h: path data structures
Copyright 1996, 1997, 1998, 2000 Red Hat, Inc.
This file is part of Cygwin.
This software is a copyrighted work licensed under the terms of the
Cygwin license. Please consult the file "CYGWIN_LICENSE" for
details. */
struct suffix_info
{
const char *name;
int addon;
suffix_info (const char *s, int addit = 0): name (s), addon (addit) {}
};
enum pathconv_arg
{
PC_SYM_FOLLOW = 0x0001,
PC_SYM_NOFOLLOW = 0x0002,
PC_SYM_IGNORE = 0x0004,
PC_SYM_CONTENTS = 0x0008,
PC_FULL = 0x0010,
PC_NULLEMPTY = 0x0020
};
#define PC_NONULLEMPTY -1
#include <sys/mount.h>
enum path_types
{
PATH_NOTHING = 0,
PATH_SYMLINK = MOUNT_SYMLINK,
PATH_BINARY = MOUNT_BINARY,
PATH_EXEC = MOUNT_EXEC,
PATH_CYGWIN_EXEC = MOUNT_CYGWIN_EXEC,
PATH_ALL_EXEC = PATH_CYGWIN_EXEC | PATH_EXEC,
PATH_SOCKET = 0x40000000,
PATH_HASACLS = 0x80000000
};
class path_conv
{
char path[MAX_PATH];
public:
unsigned path_flags;
int has_acls () {return path_flags & PATH_HASACLS;}
int hasgood_inode () {return path_flags & PATH_HASACLS;} // Not strictly correct
int isbinary () {return path_flags & PATH_BINARY;}
int issymlink () {return path_flags & PATH_SYMLINK;}
int issocket () {return path_flags & PATH_SOCKET;}
int isexec () {return path_flags & PATH_ALL_EXEC;}
int iscygexec () {return path_flags & PATH_CYGWIN_EXEC;}
void set_binary () {path_flags |= PATH_BINARY;}
void set_symlink () {path_flags |= PATH_SYMLINK;}
void set_exec (int x = 1) {path_flags |= x ? PATH_EXEC : PATH_NOTHING;}
void set_has_acls (int x = 1) {path_flags |= x ? PATH_HASACLS : PATH_NOTHING;}
char *known_suffix;
int error;
DWORD devn;
int unit;
DWORD fileattr;
void check (const char *src, unsigned opt = PC_SYM_FOLLOW,
const suffix_info *suffixes = NULL);
path_conv (int, const char *src, unsigned opt = PC_SYM_FOLLOW,
const suffix_info *suffixes = NULL)
{
check (src, opt, suffixes);
}
path_conv (const char *src, unsigned opt = PC_SYM_FOLLOW,
const suffix_info *suffixes = NULL)
{
check (src, opt | PC_NULLEMPTY, suffixes);
}
path_conv (): path_flags (0), known_suffix (NULL), error (0), devn (0), unit (0), fileattr (0xffffffff) {path[0] = '\0';}
inline char *get_win32 () { return path; }
operator char *() {return path; }
BOOL is_device () {return devn != FH_BAD;}
DWORD get_devn () {return devn == FH_BAD ? (DWORD) FH_DISK : devn;}
short get_unitn () {return devn == FH_BAD ? 0 : unit;}
DWORD file_attributes () {return fileattr;}
};
/* Symlink marker */
#define SYMLINK_COOKIE "!<symlink>"
/* Socket marker */
#define SOCKET_COOKIE "!<socket >"
/* Maximum depth of symlinks (after which ELOOP is issued). */
#define MAX_LINK_DEPTH 10
int __stdcall get_device_number (const char *name, int &unit, BOOL from_conv = FALSE);
int __stdcall slash_unc_prefix_p (const char *path);
int __stdcall check_null_empty_path (const char *name);
const char * __stdcall find_exec (const char *name, path_conv& buf, const char *winenv = "PATH=",
int null_if_notfound = 0, const char **known_suffix = NULL);
/* Common macros for checking for invalid path names */
#define check_null_empty_path_errno(src) \
({ \
int __err; \
if ((__err = check_null_empty_path(src))) \
set_errno (__err); \
__err; \
})
#define isdrive(s) (isalpha (*(s)) && (s)[1] == ':')
/* cwd cache stuff. */
class muto;
struct cwdstuff
{
char *posix;
char *win32;
DWORD hash;
muto *lock;
char *get (char *buf, int need_posix = 1, int with_chroot = 0, unsigned ulen = MAX_PATH);
DWORD get_hash ();
void init ();
void fixup_after_exec (char *win32, char *posix, DWORD hash);
bool get_initial ();
void copy (char * &posix_cwd, char * &win32_cwd, DWORD hash_cwd);
void set (const char *win32_cwd, const char *posix_cwd = NULL);
};
extern cwdstuff cygcwd;
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