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/* C K U S I G . H */
/* Definitions and prototypes for signal handling */
/*
Author: Jeffrey E Altman (jaltman@secure-endpoints.com),
Secure Endpoints Inc., New York City.
Copyright (C) 1985, 2004,
Trustees of Columbia University in the City of New York.
All rights reserved. See the C-Kermit COPYING.TXT file or the
copyright text in the ckcmai.c module for disclaimer and permissions.
*/
#ifdef CK_ANSIC
typedef void (*ck_sigfunc)(void *);
typedef void (*ck_sighand)(int);
#else
typedef VOID (*ck_sigfunc)();
typedef VOID (*ck_sighand)();
#endif /* CK_ANSIC */
/* Macros for POSIX vs old-style signal handling. */
#ifdef CK_POSIX_SIG
typedef sigjmp_buf ckjmpbuf;
#else
typedef jmp_buf ckjmpbuf;
#endif /* CK_POSIX_SIG */
/*
Suppose you want to pass the address of a jmp_buf bar to a function foo.
Since jmp_buf is normally defined (typedef'd) as an array, you would do
it like this: foo(bar), where foo = foo(jmp_buf bar). But suppose a
jmp_buf is (say) a struct rather than an array. Then you must do
foo(&bar) where foo is foo(jmp_buf * bar). This is controlled here in
the traditional fashion, by ifdefs. By default, we assume that jmp_buf
is an array. Define the symbol JBNOTARRAY if jmp_buf is not an array.
*/
#ifndef JBNOTARRAY
#ifdef NT
#define JBNOTARRAY
#endif /* NT */
#endif /* JBNOTARRAY */
#ifdef JBNOTARRAY
typedef ckjmpbuf * ckjptr;
#define ckjaddr(x) & x
#define ckjdref(x) * x
#ifdef CK_POSIX_SIG
#define cksetjmp(x) sigsetjmp(x,1)
#else
#define cksetjmp(x) setjmp(x,1)
#endif /* CK_POSIX_SIG */
#else /* jmp_buf is an array */
typedef ckjmpbuf ckjptr;
#define ckjaddr(x) x
#define ckjdref(x) x
#ifdef CK_POSIX_SIG
#define cksetjmp sigsetjmp
#else
#define cksetjmp setjmp
#endif /* CK_POSIX_SIG */
#endif /* JBNOTARRAY */
_PROTOTYP( int cc_execute, (ckjptr, ck_sigfunc, ck_sigfunc) );
_PROTOTYP( int alrm_execute,
(ckjptr,
int timo,
ck_sighand handler,
ck_sigfunc, ck_sigfunc) );
_PROTOTYP( int cc_alrm_execute,
(ckjptr,
int timo,
ck_sighand handler,
ck_sigfunc,
ck_sigfunc) );
/* End of ckusig.h */
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