/*
 * See i386-fbsd.c for copyright and license terms.
 *
 * System call arguments come in several flavours:
 * Hex -- 32bit integer values that should be printed in hex
 * Octal -- Same as above, but octal
 * Int -- normal 32bit integer values (file descriptors, for example)
 * Hex64 -- 64bit values that should be printed in hex (addresses)
 * Int64 -- normal 64bit integer values
 * String -- pointers to sensible data.  Note that we treat read() and
 *      write() arguments as such, even though they may *not* be
 *      printable data.
 * Ptr -- pointer to some specific structure.  Just print as hex for now.
 * Stat -- a pointer to a stat buffer.  Currently unused.
 * Ioctl -- an ioctl command.  Woefully limited.
 *
 * In addition, the pointer types (String, Ptr) may have OUT masked in --
 * this means that the data is set on *return* from the system call -- or
 * IN (meaning that the data is passed *into* the system call).
 */
/*
 * $FreeBSD: src/usr.bin/truss/syscall.h,v 1.5.2.3 2002/02/15 11:43:51 des Exp $
 * $DragonFly: src/usr.bin/truss/syscall.h,v 1.2 2003/06/17 04:29:33 dillon Exp $
 */

enum Argtype { None = 1, Hex, Hex64, Octal, Int, Int64,
        String, Ptr, Stat, Ioctl, Signal, Sockaddr };

#define ARG_MASK        0xff
#define OUT     0x100
#define IN      /*0x20*/0

struct syscall_args {
        enum Argtype type;
        int offset;
};

struct syscall {
        const char *name;
        int ret_type;   /* 0, 1, or 2 return values */
        int nargs;      /* actual number of meaningful arguments */
                        /* Hopefully, no syscalls with > 10 args */
        struct syscall_args args[10];
};

struct syscall *get_syscall(const char*);
char *get_string(int, off_t, size_t);
char *print_arg(int, struct syscall_args *, unsigned long*);
void print_syscall(struct trussinfo *, const char *, int, char **);
void print_syscall_ret(struct trussinfo *, const char *, int, char **, int, int);