mirror of
https://git.tartarus.org/simon/putty.git
synced 2025-01-09 17:38:00 +00:00
08b43c0cca
This was a particularly confusing piece of type-danger, because three different types were passed outside sshshare.c as 'void *' and only human vigilance prevented one coming back as the wrong one. Now they all keep their opaque structure tags when they move through other parts of the code.
96 lines
2.7 KiB
C
96 lines
2.7 KiB
C
/*
|
|
* defs.h: initial definitions for PuTTY.
|
|
*
|
|
* The rule about this header file is that it can't depend on any
|
|
* other header file in this code base. This is where we define
|
|
* things, as much as we can, that other headers will want to refer
|
|
* to, such as opaque structure types and their associated typedefs,
|
|
* or macros that are used by other headers.
|
|
*/
|
|
|
|
#ifndef PUTTY_DEFS_H
|
|
#define PUTTY_DEFS_H
|
|
|
|
#include <stddef.h>
|
|
|
|
#ifndef FALSE
|
|
#define FALSE 0
|
|
#endif
|
|
#ifndef TRUE
|
|
#define TRUE 1
|
|
#endif
|
|
|
|
typedef struct conf_tag Conf;
|
|
typedef struct terminal_tag Terminal;
|
|
|
|
typedef struct Filename Filename;
|
|
typedef struct FontSpec FontSpec;
|
|
|
|
typedef struct bufchain_tag bufchain;
|
|
|
|
typedef struct strbuf strbuf;
|
|
|
|
struct RSAKey;
|
|
|
|
#include <stdint.h>
|
|
typedef uint32_t uint32;
|
|
|
|
typedef struct BinarySink BinarySink;
|
|
typedef struct BinarySource BinarySource;
|
|
|
|
typedef struct SockAddr_tag *SockAddr;
|
|
|
|
typedef struct Socket_vtable Socket_vtable;
|
|
typedef struct Plug_vtable Plug_vtable;
|
|
|
|
typedef struct Backend Backend;
|
|
typedef struct Backend_vtable Backend_vtable;
|
|
|
|
typedef struct Ldisc_tag Ldisc;
|
|
typedef struct LogContext_tag LogContext;
|
|
|
|
typedef struct Frontend Frontend;
|
|
|
|
typedef struct ssh_tag *Ssh;
|
|
|
|
typedef struct Channel Channel;
|
|
|
|
typedef struct ssh_sharing_state ssh_sharing_state;
|
|
typedef struct ssh_sharing_connstate ssh_sharing_connstate;
|
|
typedef struct share_channel share_channel;
|
|
|
|
/* Note indirection: for historical reasons (it used to be closer to
|
|
* the OS socket type), the type that most code uses for a socket is
|
|
* 'Socket', not 'Socket *'. So an implementation of Socket or Plug
|
|
* has a 'const Socket *' field for the vtable pointer, and the
|
|
* 'Socket' type returned to client code is a pointer to _that_ in
|
|
* turn. */
|
|
typedef const Socket_vtable **Socket;
|
|
typedef const Plug_vtable **Plug;
|
|
|
|
/*
|
|
* A small structure wrapping up a (pointer, length) pair so that it
|
|
* can be conveniently passed to or from a function.
|
|
*/
|
|
typedef struct ptrlen {
|
|
const void *ptr;
|
|
size_t len;
|
|
} ptrlen;
|
|
|
|
typedef struct logblank_t logblank_t;
|
|
|
|
/* Do a compile-time type-check of 'to_check' (without evaluating it),
|
|
* as a side effect of returning the value 'to_return'. Note that
|
|
* although this macro double-*expands* to_return, it always
|
|
* *evaluates* exactly one copy of it, so it's side-effect safe. */
|
|
#define TYPECHECK(to_check, to_return) \
|
|
(sizeof(to_check) ? (to_return) : (to_return))
|
|
|
|
/* Return a pointer to the object of structure type 'type' whose field
|
|
* with name 'field' is pointed at by 'object'. */
|
|
#define FROMFIELD(object, type, field) \
|
|
TYPECHECK(object == &((type *)0)->field, \
|
|
((type *)(((char *)(object)) - offsetof(type, field))))
|
|
|
|
#endif /* PUTTY_DEFS_H */
|