/*-
 * SPDX-License-Identifier: BSD-3-Clause
 *
 * Copyright (c) 1990, 1993
 *      The Regents of the University of California.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

#include <sys/queue.h>

#define UNLIMITED       0       /* unlimited terminal width */
enum type { UNSPEC, /* For output routines that don't care and aliases. */
            CHAR, SCHAR, UCHAR, SHORT, USHORT, INT, UINT, LONG, ULONG, KPTR, PGTOK };

typedef struct kinfo_str {
        STAILQ_ENTRY(kinfo_str) ks_next;
        char *ks_str;   /* formatted string */
} KINFO_STR;

typedef struct kinfo {
        struct kinfo_proc *ki_p;        /* kinfo_proc structure */
        const char *ki_args;    /* exec args */
        const char *ki_env;     /* environment */
        int ki_valid;           /* 1 => uarea stuff valid */
        double   ki_pcpu;       /* calculated in main() */
        segsz_t  ki_memsize;    /* calculated in main() */
        union {
                int level;      /* used in decendant_sort() */
                char *prefix;   /* calculated in decendant_sort() */
        } ki_d;
        STAILQ_HEAD(, kinfo_str) ki_ks;
} KINFO;

/* Keywords/variables to be printed. */
typedef struct varent {
        STAILQ_ENTRY(varent)     next_ve;
        const char              *header;
        const struct var        *var;
        u_int                    width;
#define VE_KEEP         (1 << 0)
        uint16_t                flags;
} VARENT;
STAILQ_HEAD(velisthead, varent);

struct var;
typedef struct var VAR;
/* Structure representing one available keyword. */
struct var {
        const char *name;       /* name(s) of variable */
        union {
                /* Valid field depends on RESOLVED_ALIAS' presence. */
                const char      *aliased; /* keyword this one is an alias to */
                const VAR       *final_kw; /* final aliased keyword */
        };
        const char *header;     /* default header */
        const char *field;      /* xo field name */
#define COMM            0x01    /* needs exec arguments and environment (XXX) */
#define LJUST           0x02    /* left adjust on output (trailing blanks) */
#define USER            0x04    /* needs user structure */
#define INF127          0x10    /* values >127 displayed as 127 */
#define NOINHERIT       0x1000  /* Don't inherit flags from aliased keyword. */
#define RESOLVING_ALIAS 0x10000 /* Used transiently to resolve aliases. */
#define RESOLVED_ALIAS  0x20000 /* Mark that an alias has been resolved. */
        u_int   flag;
        /* output routine */
        char    *(*oproc)(struct kinfo *, struct varent *);
        /*
         * The following (optional) elements are hooks for passing information
         * to the generic output routine pvar (which prints simple elements
         * from the well known kinfo_proc structure).
         */
        size_t  off;            /* offset in structure */
        enum    type type;      /* type of element */
        const char *fmt;        /* printf format (depends on output routine) */
};

#include "extern.h"