cmd/cfgadm/cfgadm.c

/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License (the "License").
 * You may not use this file except in compliance with the License.
 *
 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
 * or http://www.opensolaris.org/os/licensing.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
 * information: Portions Copyright [yyyy] [name of copyright owner]
 *
 * CDDL HEADER END
 */

/*
 * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */

/*
 * This is the main program file for the configuration administration
 * command as set out in manual page cfgadm(1M).  It uses the configuration
 * administration library interface, libcfgadm, as set out in manual
 * page config_admin(3X).
 */

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <locale.h>
#include <langinfo.h>
#include <time.h>
#include <assert.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/param.h>
#include <sys/sunddi.h>
#include <sys/openpromio.h>
#include <sys/ddi_impldefs.h>
#include <sys/systeminfo.h>
#include <ctype.h>
#include <zone.h>

#include <config_admin.h>
#include "cfgadm.h"

#define S_FREE(x)   (((x) != NULL) ? (free(x), (x) = NULL) : (void *)0)
#define GET_DYN(a)  (strstr((a), CFGA_DYN_SEP))
/*
 * forward declarations
 */
static char *basename(char *);
static void cfgadm_error(int, char *);
static int confirm_interactive(void *, const char *);
static int confirm_no(void *, const char *);
static int confirm_yes(void *, const char *);
static void usage(void);
static void usage_field(void);
static int extract_list_suboptions(char *, char **, char **, char **,
    int *, char **, char **, char **);
static int message_output(void *appdata_ptr, const char *message);
static void *config_calloc_check(size_t, size_t);
static cfga_ap_types_t find_arg_type(const char *);
static int yesno(char *, char *);


static int compare_ap_id(cfga_list_data_t *, cfga_list_data_t *, match_type_t);
static int compare_r_state(cfga_list_data_t *, cfga_list_data_t *,
    match_type_t);
static int compare_o_state(cfga_list_data_t *, cfga_list_data_t *,
    match_type_t);
static int compare_cond(cfga_list_data_t *, cfga_list_data_t *, match_type_t);
static int compare_time(cfga_list_data_t *, cfga_list_data_t *, match_type_t);
static int compare_info(cfga_list_data_t *, cfga_list_data_t *, match_type_t);
static int compare_type(cfga_list_data_t *, cfga_list_data_t *, match_type_t);
static int compare_busy(cfga_list_data_t *, cfga_list_data_t *, match_type_t);
static int compare_class(cfga_list_data_t *, cfga_list_data_t *, match_type_t);
static int compare_null(cfga_list_data_t *, cfga_list_data_t *, match_type_t);
static void print_log_id(cfga_list_data_t *, int, char *);
static void print_r_state(cfga_list_data_t *, int, char *);
static void print_o_state(cfga_list_data_t *, int, char *);
static void print_cond(cfga_list_data_t *, int, char *);
static void print_time(cfga_list_data_t *, int, char *);
static void print_time_p(cfga_list_data_t *, int, char *);
static void print_info(cfga_list_data_t *, int, char *);
static void print_type(cfga_list_data_t *, int, char *);
static void print_busy(cfga_list_data_t *, int, char *);
static void print_phys_id(cfga_list_data_t *, int, char *);
static void print_class(cfga_list_data_t *, int, char *);
static void print_null(cfga_list_data_t *, int, char *);
static int count_fields(char *, char);
static int process_sort_fields(int, struct sort_el *, char *);
static int process_fields(int, struct print_col *, int, char *);
static cfga_err_t print_fields(int, struct print_col *, int, int, char *,
    cfga_list_data_t *, FILE *);
static int ldata_compare(const void *, const void *);

static void arg_got_resp(ap_arg_t *inp, ap_out_t *out_array, int nouts,
    int dyn_exp);
static void out_was_req(ap_out_t *outp, ap_arg_t *in_array, int nargs,
    int no_dyn);
static void report_no_response(ap_arg_t *arg_array, int napids_to_list);

static cfga_err_t set_log_flt(cfga_list_data_t *p, const char *val);
static cfga_err_t set_type_flt(cfga_list_data_t *p, const char *val);
static cfga_err_t set_class_flt(cfga_list_data_t *p, const char *val);

static char *get_dyn(const char *ap_id);
static void remove_dyn(char *ap_id);
static char *s_strdup(char *str);

/*
 * global data
 */
/* command name for messages */
static char *cmdname;

/*
 * control for comparing, printing and filtering cfga_list_data
 * NOTE:Field names (i.e. member 0 of field_info struct) may not contain '('.
 *  The post filtering code depends on it.
 * NOTE:A NULL value for the set_filter member indicates that filtering based
 *  on that field is currently not supported.
 */
static struct field_info all_fields[] = {
{"ap_id", "Ap_Id", SZ_EL(ap_log_id), compare_ap_id, print_log_id, set_log_flt},
{"r_state", "Receptacle", STATE_WIDTH, compare_r_state, print_r_state, NULL},
{"o_state", "Occupant", STATE_WIDTH, compare_o_state, print_o_state, NULL},
{"condition", "Condition", COND_WIDTH, compare_cond, print_cond, NULL},
{"status_time", "When", TIME_WIDTH, compare_time, print_time, NULL},
{"status_time_p", "When", TIME_P_WIDTH, compare_time, print_time_p, NULL},
{"info", "Information", SZ_EL(ap_info), compare_info, print_info, NULL},
{"type", "Type", SZ_EL(ap_type), compare_type, print_type, set_type_flt},
{"busy", "Busy", 8, compare_busy, print_busy, NULL},
{"physid", "Phys_Id", SZ_EL(ap_phys_id), compare_ap_id, print_phys_id, NULL},
{"class", "Class", SZ_EL(ap_class), compare_class, print_class, set_class_flt}
};

#define PREFILT_CLASS_STR   "class="

typedef struct {
    cfga_list_data_t ldata;         /* Selection criteria */
    match_type_t match_type_p[N_FIELDS];    /* Type of match */
} post_filter_t;

static struct field_info null_field =
    {"null", "", 0, compare_null, print_null, NULL};

static struct sort_el *sort_list;   /* Used in ldata_compare() */
static int nsort_list;
static char unk_field[] = "%s: field \"%s\" unknown\n";

static char aptype_no_dyn[] = "%s: Invalid ap_id: %s\n";

/* strings that make up the usage message */
static char *usage_tab[] = {
" %s [-f] [-y|-n] [-v] [-o hardware_opts ] -c function ap_id [ap_id...]\n",
" %s [-f] [-y|-n] [-v] [-o hardware_opts ] -x function ap_id [ap_id...]\n",
" %s [-v] [-s listing_options ] [-o hardware_opts ] [-a]\n"
"\t[-l [ap_id|ap_type...]]\n",
" %s [-v] [-o hardware_opts ] -t ap_id [ap_id...]\n",
" %s [-v] [-o hardware_opts ] -h [ap_id|ap_type...]\n",
};

/* Type of matches currently supported by the select sub-option */
static match_cvt_t match_type_array[] = {
    {"partial", CFGA_MATCH_PARTIAL},
    {"exact", CFGA_MATCH_EXACT}
};

#define N_MATCH_TYPES   (sizeof (match_type_array)/sizeof (match_type_array[0]))

static cfga_err_t setup_filter(const char *selectp, const char *matchp,
    post_filter_t *post_filtp, char **prefilt_optpp);
static cfga_err_t parse_select_opt(const char *selectp,
    post_filter_t *post_filtp, match_type_t match_type);
static int do_config_list(int, char *[], cfga_list_data_t *, int, char *,
    char *, char *, int, char *, post_filter_t *, int);
static void do_post_filter(ap_out_t *outp, post_filter_t *post_filtp, int *jp);


/*
 * main - the main routine of cfgadm, processes the command line
 * and dispatches functions off to libraries.
 */
int
main(
    int argc,
    char *argv[])
{
    extern char *optarg;
    extern int optind;
    int c;
    char *subopts;
    char *subvalue;
    char *const *ap_args = NULL;
    cfga_cmd_t sc_opt = NULL;
    struct cfga_confirm confirm;
    struct cfga_msg message;
    int ret = CFGA_ERROR;
    int i;
    char *estrp = NULL;
    cfga_op_t action = CFGA_OP_NONE;
    char *plat_opts = NULL;
    char *act_arg = NULL;
    enum confirm confarg = CONFIRM_DEFAULT;
    char *list_opts = NULL;
    cfga_flags_t flags = 0;
    int arg_error = 0;
    int dyn_exp = 0;

    estrp = NULL;
    if (argc > 0)
        cmdname = basename(argv[0]);
    else
        cmdname = "cfgadm";
    (void) setlocale(LC_ALL, "");
#if !defined(TEXT_DOMAIN)
#define TEXT_DOMAIN "SYS_TEST"
#endif
    (void) textdomain(TEXT_DOMAIN);

    while ((c = getopt(argc, argv, OPTIONS)) != EOF) {
        static char dup_action[] =
"%s: more than one action specified (-c,-l,-t,-x)\n";
        static char dup_option[] =
"%s: more than one -%c option specified\n";
        switch (c) {
        case 'a':
            if (dyn_exp) {
                arg_error = 1;
                (void) fprintf(stderr, gettext(dup_option),
                    cmdname, c);
            }
            dyn_exp = 1;
            break;
        case 'c':
            if (action != CFGA_OP_NONE) {
                arg_error = 1;
                (void) fprintf(stderr, gettext(dup_action),
                    cmdname);
            }
            action = CFGA_OP_CHANGE_STATE;
            subopts = optarg;
            subvalue = NULL;
            /*
             * Reject -c suboption if they are unrecognized
             * or more than one or have a associated value.
             */
            if ((sc_opt = getsubopt(&subopts, state_opts,
                &subvalue)) == -1 || *subopts != '\0' ||
                subvalue != NULL) {
                arg_error = 1;
                break;
            }
            break;
        case 'f':
            if ((flags & CFGA_FLAG_FORCE) != 0) {
                arg_error = 1;
                (void) fprintf(stderr, gettext(dup_option),
                    cmdname, c);
            }
            flags |= CFGA_FLAG_FORCE;
            break;
        case 'h':
            if (action != CFGA_OP_NONE) {
                arg_error = 1;
                (void) fprintf(stderr, gettext(dup_action),
                    cmdname);
            }
            action = CFGA_OP_HELP;
            break;
        case 'l':
            if (action != CFGA_OP_NONE) {
                arg_error = 1;
                (void) fprintf(stderr, gettext(dup_action),
                    cmdname);
            }
            action = CFGA_OP_LIST;
            break;
        case 'n':
            if (confarg != CONFIRM_DEFAULT) {
                arg_error = 1;
                (void) fprintf(stderr, gettext(dup_option),
                    cmdname, c);
            }
            confarg = CONFIRM_NO;
            break;
        case 'o':
            if (plat_opts != NULL) {
                arg_error = 1;
                (void) fprintf(stderr, gettext(dup_option),
                    cmdname, c);
            }
            plat_opts = optarg;
            break;
        case 's':
            if (list_opts != NULL) {
                arg_error = 1;
                (void) fprintf(stderr, gettext(dup_option),
                    cmdname, c);
            }
            list_opts = optarg;
            break;
        case 't':
            if (action != CFGA_OP_NONE) {
                arg_error = 1;
                (void) fprintf(stderr, gettext(dup_action),
                    cmdname);
            }
            action = CFGA_OP_TEST;
            break;
        case 'x':
            if (action != CFGA_OP_NONE) {
                arg_error = 1;
                (void) fprintf(stderr, gettext(dup_action),
                    cmdname);
            }
            action = CFGA_OP_PRIVATE;
            act_arg = optarg;
            break;
        case 'v':
            if ((flags & CFGA_FLAG_VERBOSE) != 0) {
                arg_error = 1;
                (void) fprintf(stderr, gettext(dup_option),
                    cmdname, c);
            }
            flags |= CFGA_FLAG_VERBOSE;
            break;
        case 'y':
            if (confarg != CONFIRM_DEFAULT) {
                arg_error = 1;
                (void) fprintf(stderr, gettext(dup_option),
                    cmdname, c);
            }
            confarg = CONFIRM_YES;
            break;
        case '?':   /* getopts issues message is this case */
        default:    /* catch programming errors */
            arg_error = 1;
            break;
        }
    }

    /* default action is list */
    if (action == CFGA_OP_NONE)
        action = CFGA_OP_LIST;

    /* -s and -a option only for list */
    if (action != CFGA_OP_LIST && (list_opts != NULL || dyn_exp)) {
        arg_error = 1;
    }

    if (arg_error) {
        usage();
        exit(EXIT_ARGERROR);
        /*NOTREACHED*/
    }

    if (getzoneid() != GLOBAL_ZONEID) {
        cfgadm_error(CFGA_NOTSUPP,
            gettext("cfgadm can only be run from the global zone"));
        exit(EXIT_NOTSUPP);
    }

    ap_args = &argv[optind];

    /*
     * If neither -n of -y was specified, interactive confirmation
     * is used.  Check if the program has terminal I/O and
     * enforce -n if not.
     */
    (void) memset(&confirm, 0, sizeof (confirm));
    if (action == CFGA_OP_CHANGE_STATE || action == CFGA_OP_PRIVATE) {
        if (confarg == CONFIRM_DEFAULT &&
            !(isatty(fileno(stdin)) && isatty(fileno(stderr))))
            confarg = CONFIRM_NO;
        switch (confarg) {
        case CONFIRM_DEFAULT:
            confirm.confirm = confirm_interactive;
            break;
        case CONFIRM_NO:
            confirm.confirm = confirm_no;
            break;
        case CONFIRM_YES:
            confirm.confirm = confirm_yes;
            break;
        default:    /* paranoia */
            abort();
            /*NOTREACHED*/
        }
    }

    /*
     * set up message output routine
     */
    message.message_routine = message_output;

    switch (action) {
    case CFGA_OP_CHANGE_STATE:
        /* Sanity check - requires an argument */
        if ((argc - optind) <= 0) {
            usage();
            break;
        }
        /* Sanity check - args cannot be ap_types */
        for (i = 0; i < (argc - optind); i++) {
            if (find_arg_type(ap_args[i]) == AP_TYPE) {
                usage();
                exit(EXIT_ARGERROR);
                /*NOTREACHED*/
            }
        }
        ret = config_change_state(sc_opt, argc - optind, ap_args,
            plat_opts, &confirm, &message, &estrp, flags);
        if (ret != CFGA_OK)
            cfgadm_error(ret, estrp);
        break;
    case CFGA_OP_PRIVATE:
        /* Sanity check - requires an argument */
        if ((argc - optind) <= 0) {
            usage();
            break;
        }
        /* Sanity check - args cannot be ap_types */
        for (i = 0; i < (argc - optind); i++) {
            if (find_arg_type(ap_args[i]) == AP_TYPE) {
                usage();
                exit(EXIT_ARGERROR);
                /*NOTREACHED*/
            }
        }

        ret = config_private_func(act_arg, argc - optind, ap_args,
            plat_opts, &confirm, &message, &estrp, flags);

        if (ret != CFGA_OK)
            cfgadm_error(ret, estrp);
        break;
    case CFGA_OP_TEST:
        /* Sanity check - requires an argument */
        if ((argc - optind) <= 0) {
            usage();
            break;
        }

        if ((flags & ~CFGA_FLAG_VERBOSE) != 0) {
            usage();
            exit(EXIT_ARGERROR);
            /*NOTREACHED*/
        }

        /* Sanity check - args cannot be ap_types */
        for (i = 0; i < (argc - optind); i++) {
            if (find_arg_type(ap_args[i]) == AP_TYPE) {
                usage();
                exit(EXIT_ARGERROR);
                /*NOTREACHED*/
            }
        }
        ret = config_test(argc - optind, ap_args, plat_opts, &message,
            &estrp, flags);
        if (ret != CFGA_OK)
            cfgadm_error(ret, estrp);
        break;
    case CFGA_OP_HELP:

        if ((flags & ~CFGA_FLAG_VERBOSE) != 0) {
            usage();
            exit(EXIT_ARGERROR);
            /*NOTREACHED*/
        }

        /* always do usage? */
        usage();
        ret = config_help(argc - optind, ap_args, &message, plat_opts,
            flags);
        if (ret != CFGA_OK)
            cfgadm_error(ret, estrp);
        break;

    case CFGA_OP_LIST: {
        /*
         * Note that we leak the strdup strings below (we never free
         * them). This is ok in this context since cfgadm is
         * a short lived process that will exit shortly freeing
         * the memory.
         */
        cfga_list_data_t *list_array = NULL;
        int nlist = 0;
        char *sort_fields = s_strdup(DEF_SORT_FIELDS);
        char *cols = s_strdup(DEF_COLS);
        char *cols2 = s_strdup(DEF_COLS2);
        int noheadings = 0;
        char *delim = s_strdup(DEF_DELIM);
        int exitcode = EXIT_OK;
        int i;
        int type = 0;
        char *selectp = NULL, *matchp = NULL, *prefilt_optp = NULL;
        post_filter_t *post_filtp = NULL;

        if ((flags & ~CFGA_FLAG_VERBOSE) != 0) {
            usage();
            exit(EXIT_ARGERROR);
            /*NOTREACHED*/
        }

        if (flags & CFGA_FLAG_VERBOSE) {
            cols = s_strdup(DEF_COLS_VERBOSE);
            cols2 = s_strdup(DEF_COLS2_VERBOSE);
        }

        if (list_opts != NULL && !extract_list_suboptions(list_opts,
            &sort_fields, &cols, &cols2, &noheadings, &delim,
            &selectp, &matchp)) {
            usage_field();
            exit(EXIT_ARGERROR);
            /*NOTREACHED*/
        }

        /*
         * Scan any args and see if there are any ap_types.
         * If there are we get all attachment point stats and
         * then filter what gets printed.
         */

        type = 0;
        for (i = 0; i < (argc - optind); i++) {
            if (find_arg_type(ap_args[i]) == AP_TYPE) {
                type = 1;
                /* ap_types cannot have dynamic components */
                if (get_dyn(ap_args[i]) != NULL) {
                    (void) fprintf(stderr,
                        gettext(aptype_no_dyn),
                        cmdname, ap_args[i]);
                    exit(EXIT_ARGERROR);
                    /*NOTREACHED*/
                }
                break;
            }
        }

        /* Setup filter */
        post_filtp = config_calloc_check(1, sizeof (*post_filtp));
        if (post_filtp == NULL) {
            exit(EXIT_OPFAILED);
            /*NOTREACHED*/
        }
        if (setup_filter(selectp, matchp, post_filtp, &prefilt_optp)
            != CFGA_OK) {
            S_FREE(post_filtp);
            exit(EXIT_ARGERROR);
            /*NOTREACHED*/
        }

        list_array = NULL;
        exitcode = EXIT_OK;

        /*
         * Check for args. No args means find all libs
         * and call the cfga_list_ext routine with no ap_ids specified.
         * With args, if any one of the args are ap_types we
         * again find all attachment points as in the
         * no-args case above and then select which attachment points
         * are actually displayed.
         */
        if (((argc - optind) == 0) || (type == 1)) {
            /*
             * No args, or atleast 1 ap_type arg
             */
            ret = config_list_ext(0, NULL, &list_array,
                &nlist, plat_opts, prefilt_optp, &estrp,
                dyn_exp ? CFGA_FLAG_LIST_ALL : 0);
        } else {
            /*
             * If the args are all ap_ids (no ap_types) we call the
             * cfga_list_ext routine with those specific ap_ids.
             */
            ret = config_list_ext(argc - optind, ap_args,
                &list_array, &nlist, plat_opts, prefilt_optp,
                &estrp, dyn_exp ? CFGA_FLAG_LIST_ALL : 0);
        }

        S_FREE(prefilt_optp);

        if (ret == CFGA_OK) {

            if (do_config_list(
                (argc - optind), &argv[optind], list_array, nlist,
                sort_fields, cols, cols2, noheadings, delim,
                post_filtp, dyn_exp) != CFGA_OK) {
                exitcode = EXIT_ARGERROR;
            } else {
                exitcode = EXIT_OK;
            }

            S_FREE(list_array);
            S_FREE(post_filtp);

            if (estrp != NULL && *estrp != '\0')
                cfgadm_error(CFGA_NOTSUPP, estrp);
            if (exitcode != EXIT_OK) {
                exit(exitcode);
                /*NOTREACHED*/
            }
        } else {

            S_FREE(post_filtp);
            cfgadm_error(ret, estrp);
        }
        break;
    }
    default:    /* paranoia */
        abort();
        /*NOTREACHED*/
    }

    if (ret == CFGA_NOTSUPP) {
        return (EXIT_NOTSUPP);
    } else if (ret != CFGA_OK) {
        return (EXIT_OPFAILED);
    } else {
        return (EXIT_OK);
    }
    /*NOTREACHED*/
}

/*
 * usage - outputs the usage help message.
 */
static void
usage(void)
{
    int i;

    (void) fprintf(stderr, "%s\n", gettext("Usage:"));
    for (i = 0; i < sizeof (usage_tab)/sizeof (usage_tab[0]); i++) {
        (void) fprintf(stderr, gettext(usage_tab[i]), cmdname);
    }
}

/*
 * Emit an error message.
 * As a side-effect the hardware specific error message is deallocated
 * as described in config_admin(3X).
 */
static void
cfgadm_error(int errnum, char *estrp)
{
    const char *ep;

    ep = config_strerror(errnum);
    if (ep == NULL)
        ep = gettext("configuration administration unknown error");
    if (estrp != NULL && *estrp != '\0') {
        (void) fprintf(stderr, "%s: %s: %s\n", cmdname, ep, estrp);
    } else {
        (void) fprintf(stderr, "%s: %s\n", cmdname, ep);
    }
    if (estrp != NULL)
        free((void *)estrp);
    if (errnum == CFGA_INVAL)
        usage();
}

/*
 * confirm_interactive - prompt user for confirmation
 */
static int
confirm_interactive(
    void *appdata_ptr,
    const char *message)
{
    static char yeschr[YESNO_STR_MAX + 2];
    static char nochr[YESNO_STR_MAX + 2];
    static int inited = 0;
    int isyes;

#ifdef lint
    appdata_ptr = appdata_ptr;
#endif /* lint */
    /*
     * First time through initialisation.  In the original
     * version of this command this function is only called once,
     * but this function is generalized for the future.
     */
    if (!inited) {
        (void) strncpy(yeschr, nl_langinfo(YESSTR), YESNO_STR_MAX + 1);
        (void) strncpy(nochr, nl_langinfo(NOSTR), YESNO_STR_MAX + 1);
        inited = 1;
    }

    do {
        (void) fprintf(stderr, "%s (%s/%s)? ", message, yeschr, nochr);
        isyes = yesno(yeschr, nochr);
    } while (isyes == -1);
    return (isyes);
}

/*
 * If any text is input it must sub-string match either yes or no.
 * Failure of this match is indicated by return of -1.
 * If an empty line is input, this is taken as no.
 */
static int
yesno(
    char *yesp,
    char *nop)
{
    int i, b;
    char    ans[YESNO_STR_MAX + 1];

    i = 0;

    /*CONSTCOND*/
    while (1) {
        b = getc(stdin);    /* more explicit that rm.c version */
        if (b == '\n' || b == '\0' || b == EOF) {
            if (i < YESNO_STR_MAX)  /* bug fix to rm.c version */
                ans[i] = 0;
            break;
        }
        if (i < YESNO_STR_MAX)
            ans[i] = b;
        i++;
    }
    if (i >= YESNO_STR_MAX) {
        i = YESNO_STR_MAX;
        ans[YESNO_STR_MAX] = 0;
    }
    /* changes to rm.c version follow */
    if (i == 0)
        return (0);
    if (strncmp(nop, ans, i) == 0)
        return (0);
    if (strncmp(yesp, ans, i) == 0)
        return (1);
    return (-1);
}

/*ARGSUSED*/
static int
confirm_no(
    void *appdata_ptr,
    const char *message)
{
    return (0);
}

/*ARGSUSED*/
static int
confirm_yes(
    void *appdata_ptr,
    const char *message)
{
    return (1);
}

/*
 * Find base name of filename.
 */
static char *
basename(
    char *cp)
{
    char *sp;

    if ((sp = strrchr(cp, '/')) != NULL)
        return (sp + 1);
    return (cp);
}

/*ARGSUSED*/
static int
message_output(
    void *appdata_ptr,
    const char *message)
{
    (void) fprintf(stderr, "%s", message);
    return (CFGA_OK);

}

/*
 * extract_list_suboptions - process list option string
 */
static int
extract_list_suboptions(
    char *arg,
    char **sortpp,
    char **colspp,
    char **cols2pp,
    int *noheadingsp,
    char **delimpp,
    char **selectpp,
    char **matchpp)
{
    char *value = NULL;
    int subopt = 0;
    int err = 0;

    while (*arg != '\0') {
        static char need_value[] =
"%s: sub-option \"%s\" requires a value\n";
        static char no_value[] =
"%s: sub-option \"%s\" does not take a value\n";
        static char unk_subopt[] =
"%s: sub-option \"%s\" unknown\n";
        char **pptr;

        subopt = getsubopt(&arg, list_options, &value);
        switch (subopt) {
        case LIST_SORT:
            pptr = sortpp;
            goto valcom;
        case LIST_COLS:
            pptr = colspp;
            goto valcom;
        case LIST_COLS2:
            pptr = cols2pp;
            goto valcom;
        case LIST_SELECT:
            pptr = selectpp;
            goto valcom;
        case LIST_MATCH:
            pptr = matchpp;
            goto valcom;
        case LIST_DELIM:
            pptr = delimpp;
        valcom:
            if (value == NULL) {
                (void) fprintf(stderr, gettext(need_value),
                    cmdname, list_options[subopt]);
                err = 1;
            } else
                *pptr = value;
            break;
        case LIST_NOHEADINGS:
            if (value != NULL) {
                (void) fprintf(stderr, gettext(no_value),
                    cmdname, list_options[subopt]);
                err = 1;
            } else
                *noheadingsp = 1;
            break;
        default:
            (void) fprintf(stderr, gettext(unk_subopt),
                cmdname, value);
            err = 1;
            break;
        }
    }
    return (err == 0);
}

static cfga_err_t
setup_prefilter(post_filter_t *post_filtp, char **prefilt_optpp)
{
    size_t len;
    const char *clopt = PREFILT_CLASS_STR;
    int idx;


    *prefilt_optpp = NULL;

    /* Get the index for the "class" field */
    for (idx = 0; idx < N_FIELDS; idx++) {
        if (strcmp(all_fields[idx].name, PREFILT_CLASS_STR) == 0)
            break;
    }

    /*
     * Currently pre-filter available only for class fld w/ EXACT match
     */
    if (idx >= N_FIELDS ||
        post_filtp->match_type_p[idx] != CFGA_MATCH_EXACT) {
        return (CFGA_OK);
    }

    len = strlen(clopt) + strlen(post_filtp->ldata.ap_class) + 1;
    if ((*prefilt_optpp = config_calloc_check(1, len)) == NULL) {
        return (CFGA_LIB_ERROR);
    }

    (void) strcpy(*prefilt_optpp, clopt);
    (void) strcat(*prefilt_optpp, post_filtp->ldata.ap_class);

    /*
     * Since it is being pre-filtered, this attribute does not need
     * post-filtering.
     */
    post_filtp->match_type_p[idx] = CFGA_MATCH_NOFILTER;
    if (all_fields[idx].set_filter != NULL) {
        (void) all_fields[idx].set_filter(&post_filtp->ldata, "");
    }

    return (CFGA_OK);
}

static cfga_err_t
set_attrval(
    const char *attr,
    const char *val,
    post_filter_t *post_filtp,
    match_type_t match_type)
{
    int fld = 0;
    cfga_err_t ret = CFGA_ERROR;

    for (fld = 0; fld < N_FIELDS; fld++) {
        if (strcmp(attr, all_fields[fld].name) == 0)
            break;
    }

    /* Valid field or is the select option supported for this field */
    if (fld >= N_FIELDS || all_fields[fld].set_filter == NULL) {
        return (CFGA_ATTR_INVAL);
    }

    if ((ret = all_fields[fld].set_filter(&post_filtp->ldata, val))
        == CFGA_OK) {
        post_filtp->match_type_p[fld] = match_type;
    }

    return (ret);

}

static char inval_optarg[] =
    "%s: invalid value \"%s\" for %s suboption.\n";

/*
 * Parses the "select" string and fills in the post_filter structure
 */
static cfga_err_t
parse_select_opt(
    const char *selectp,
    post_filter_t *post_filtp,
    match_type_t match_type)
{
    parse_state_t state = CFGA_PSTATE_INIT;
    char *cp = NULL, *optstr = NULL, *attr = NULL, *val = NULL;
    int bal = 0;    /* Tracks balancing */
    char chr;
    cfga_err_t ret;


    if (selectp == NULL || post_filtp == NULL) {
        return (CFGA_ERROR);
    }

    optstr = config_calloc_check(1, strlen(selectp) + 1);
    if (optstr == NULL) {
        return (CFGA_LIB_ERROR);
    }

    (void) strcpy(optstr, selectp);

    /* Init */
    ret = CFGA_ATTR_INVAL;
    bal = 0;
    cp = attr = optstr;
    state = CFGA_PSTATE_INIT;

    for (; *cp != '\0'; cp++) {
        switch (state) {
        case CFGA_PSTATE_INIT:
            if (*cp != LEFT_PAREN)
                break;
            *cp = '\0';
            val = cp + 1;
            bal = 1;
            state = CFGA_PSTATE_ATTR_DONE;
            break;
        case CFGA_PSTATE_ATTR_DONE:
            chr = *cp;
            switch (chr) {
            case LEFT_PAREN:
                bal++;
                break;
            case RIGHT_PAREN:
                bal--;
                if (bal == 0) {
                    *cp = '\0';
                    state = CFGA_PSTATE_VAL_DONE;
                }
                break;
            }
            break;
        case CFGA_PSTATE_VAL_DONE:
            if (*cp != ':') {
                state = CFGA_PSTATE_ERR;
                goto out;
            }

            *cp = '\0';
            if (set_attrval(attr, val, post_filtp,
                match_type) != CFGA_OK) {
                state = CFGA_PSTATE_ERR;
                goto out;
            }
            state = CFGA_PSTATE_INIT;
            attr = cp + 1;
            break;
        default:
            state = CFGA_PSTATE_ERR;
            /* FALLTHROUGH */
        case CFGA_PSTATE_ERR:
            goto out;
        }
    }

    /*FALLTHRU*/
out:
    if (state == CFGA_PSTATE_VAL_DONE) {
        ret = set_attrval(attr, val, post_filtp, match_type);
    } else {
        ret = CFGA_ATTR_INVAL;
    }

    if (ret != CFGA_OK) {
        (void) fprintf(stderr, gettext(inval_optarg), cmdname,
            selectp, list_options[LIST_SELECT]);
    }

    S_FREE(optstr);
    return (ret);
}


static cfga_err_t
setup_filter(
    const char *selectp,
    const char *matchp,
    post_filter_t *post_filtp,
    char **prefilt_optpp)
{
    cfga_err_t ret = CFGA_ERROR;
    match_type_t match_type = CFGA_MATCH_NOFILTER;
    int i;

    static char match_needs_select[] =
        "%s: %s suboption can only be used with %s suboption.\n";


    *prefilt_optpp = NULL;

    /*
     * Initial: no filtering.
     * CFGA_MATCH_NOFILTER is NOT a valid user input
     */
    for (i = 0; i < N_FIELDS; i++) {
        post_filtp->match_type_p[i] = CFGA_MATCH_NOFILTER;
    }

    /* Determine type of match */
    if (matchp == NULL && selectp == NULL) {
        /* No filtering */
        return (CFGA_OK);
    } else if (matchp == NULL && selectp != NULL) {
        match_type = CFGA_DEFAULT_MATCH;
    } else if (matchp != NULL && selectp == NULL) {
        /* If only match specified, select criteria also needed */
        (void) fprintf(stderr, gettext(match_needs_select),
            cmdname, list_options[LIST_MATCH],
            list_options[LIST_SELECT]);
        return (CFGA_ERROR);
    } else {
        for (i = 0; i < N_MATCH_TYPES; i++) {
            if (strcmp(matchp, match_type_array[i].str) == 0) {
                match_type = match_type_array[i].type;
                break;
            }
        }
        if (i >= N_MATCH_TYPES) {
            (void) fprintf(stderr, gettext(inval_optarg), cmdname,
                matchp, list_options[LIST_MATCH]);
            return (CFGA_ERROR);
        }
    }

    if ((ret = parse_select_opt(selectp, post_filtp, match_type))
        != CFGA_OK) {
        return (ret);
    }

    /* Handle pre-filtering. */
    if ((ret = setup_prefilter(post_filtp, prefilt_optpp)) != CFGA_OK) {
        /* Cleanup */
        for (i = 0; i < N_FIELDS; i++) {
            post_filtp->match_type_p[i] = CFGA_MATCH_NOFILTER;
        }
        return (ret);
    }


    return (CFGA_OK);
}

/*
 * compare_ap_id - compare two ap_id's
 *
 * For partial matches, argument order is significant. The filtering criterion
 * should be the first argument.
 */

static int
compare_ap_id(
    cfga_list_data_t *p1,
    cfga_list_data_t *p2,
    match_type_t match_type)
{

    switch (match_type) {
        case CFGA_MATCH_NOFILTER:
            return (0); /* No filtering. all pass */
        case CFGA_MATCH_PARTIAL:
            return (strncmp(p1->ap_log_id, p2->ap_log_id,
                strlen(p1->ap_log_id)));
        case CFGA_MATCH_EXACT:
            return (strcmp(p1->ap_log_id, p2->ap_log_id));
        case CFGA_MATCH_ORDER:
        default:
            return (config_ap_id_cmp(p1->ap_log_id, p2->ap_log_id));
    }
}

/*
 * print_log_id - print logical ap_id
 */
static void
print_log_id(
    cfga_list_data_t *p,
    int width,
    char *lp)
{
    (void) sprintf(lp, "%-*.*s", width, sizeof (p->ap_log_id),
        p->ap_log_id);
}

/*
 * set_log_flt - Setup filter for logical ap_id
 */
static cfga_err_t
set_log_flt(
    cfga_list_data_t *p,
    const char *val)
{
    if (strlen(val) > sizeof (p->ap_log_id) - 1)
        return (CFGA_ATTR_INVAL);

    (void) strcpy(p->ap_log_id, val);

    return (CFGA_OK);
}

/*
 * set_type_flt - Setup filter for type field
 */

static cfga_err_t
set_type_flt(
    cfga_list_data_t *p,
    const char *val)
{
    if (strlen(val) > sizeof (p->ap_type) - 1)
        return (CFGA_ATTR_INVAL);

    (void) strcpy(p->ap_type, val);

    return (CFGA_OK);
}

/*
 * set_class_flt - Setup filter for class field
 */
static cfga_err_t
set_class_flt(
    cfga_list_data_t *p,
    const char *val)
{
    if (strlen(val) > sizeof (p->ap_class) - 1)
        return (CFGA_ATTR_INVAL);

    (void) strcpy(p->ap_class, val);

    return (CFGA_OK);
}


/*
 * compare_r_state - compare receptacle state of two ap_id's
 */
static int
compare_r_state(
    cfga_list_data_t *p1,
    cfga_list_data_t *p2,
    match_type_t match_type)
{
    switch (match_type) {
    case CFGA_MATCH_NOFILTER:  /* no filtering. pass all */
        return (0);
    case CFGA_MATCH_ORDER:
    default:
        return (p1->ap_r_state - p2->ap_r_state);
    }
}

/*
 * compare_o_state - compare occupant state of two ap_id's
 */
static int
compare_o_state(
    cfga_list_data_t *p1,
    cfga_list_data_t *p2,
    match_type_t match_type)
{
    switch (match_type) {
    case CFGA_MATCH_NOFILTER:   /* no filtering. all pass */
        return (0);
    case CFGA_MATCH_ORDER:
    default:
        return (p1->ap_o_state - p2->ap_o_state);
    }
}

/*
 * compare_busy - compare busy field of two ap_id's
 */
static int
compare_busy(
    cfga_list_data_t *p1,
    cfga_list_data_t *p2,
    match_type_t match_type)
{

    switch (match_type) {
    case CFGA_MATCH_NOFILTER:   /* no filtering. all pass */
        return (0);
    case CFGA_MATCH_ORDER:
    default:
        return (p1->ap_busy - p2->ap_busy);
    }
}

/*
 * print_r_state - print receptacle state
 */
static void
print_r_state(
    cfga_list_data_t *p,
    int width,
    char *lp)
{
    char *cp;

    switch (p->ap_r_state) {
    case CFGA_STAT_EMPTY:
        cp = "empty";
        break;
    case CFGA_STAT_CONNECTED:
        cp = "connected";
        break;
    case CFGA_STAT_DISCONNECTED:
        cp = "disconnected";
        break;
    default:
        cp = "???";
        break;
    }
    (void) sprintf(lp, "%-*s", width, cp);
}

/*
 * print_o_state - print occupant state
 */
static void
print_o_state(
    cfga_list_data_t *p,
    int width,
    char *lp)
{
    char *cp;

    switch (p->ap_o_state) {
    case CFGA_STAT_UNCONFIGURED:
        cp = "unconfigured";
        break;
    case CFGA_STAT_CONFIGURED:
        cp = "configured";
        break;
    default:
        cp = "???";
        break;
    }
    (void) sprintf(lp, "%-*s", width, cp);
}

/*
 * compare_cond - compare condition field of two ap_id's
 */
static int
compare_cond(
    cfga_list_data_t *p1,
    cfga_list_data_t *p2,
    match_type_t match_type)
{

    switch (match_type) {
    case CFGA_MATCH_NOFILTER:
        return (0);
    case CFGA_MATCH_ORDER:
    default:
        return (p1->ap_cond - p2->ap_cond);
    }
}

/*
 * print_cond - print attachment point condition
 */
static void
print_cond(
    cfga_list_data_t *p,
    int width,
    char *lp)
{
    char *cp;

    switch (p->ap_cond) {
    case CFGA_COND_UNKNOWN:
        cp = "unknown";
        break;
    case CFGA_COND_UNUSABLE:
        cp = "unusable";
        break;
    case CFGA_COND_FAILING:
        cp = "failing";
        break;
    case CFGA_COND_FAILED:
        cp = "failed";
        break;
    case CFGA_COND_OK:
        cp = "ok";
        break;
    default:
        cp = "???";
        break;
    }
    (void) sprintf(lp, "%-*s", width, cp);
}

/*
 * compare_time - compare time field of two ap_id's
 */
static int
compare_time(
    cfga_list_data_t *p1,
    cfga_list_data_t *p2,
    match_type_t match_type)
{
    switch (match_type) {
    case CFGA_MATCH_NOFILTER:
        return (0);
    case CFGA_MATCH_ORDER:
    default:
        return (p1->ap_status_time - p2->ap_status_time);
    }
}


/*
 * print_time - print time from cfga_list_data.
 * Time print based on ls(1).
 */
static void
print_time(
    cfga_list_data_t *p,
    int width,
    char *lp)
{
    static time_t   year, now;
    time_t stime;
    char    time_buf[50];   /* array to hold day and time */

    if (year == 0) {
        now = time((long *)NULL);
        year = now - 6L*30L*24L*60L*60L; /* 6 months ago */
        now = now + 60;
    }
    stime = p->ap_status_time;
    if (stime == (time_t)-1) {
        (void) sprintf(lp, "%-*s", width, gettext("unavailable"));
        return;
    }

    if ((stime < year) || (stime > now)) {
        (void) strftime(time_buf, sizeof (time_buf),
            dcgettext(NULL, FORMAT1, LC_TIME), localtime(&stime));
    } else {
        (void) strftime(time_buf, sizeof (time_buf),
            dcgettext(NULL, FORMAT2, LC_TIME), localtime(&stime));
    }
    (void) sprintf(lp, "%-*s", width, time_buf);
}

/*
 * print_time_p - print time from cfga_list_data.
 */
static void
print_time_p(
    cfga_list_data_t *p,
    int width,
    char *lp)
{
    struct tm *tp;
    char tstr[TIME_P_WIDTH+1];

    tp = localtime(&p->ap_status_time);
    (void) sprintf(tstr, "%04d%02d%02d%02d%02d%02d", tp->tm_year + 1900,
        tp->tm_mon + 1, tp->tm_mday, tp->tm_hour, tp->tm_min, tp->tm_sec);
    (void) sprintf(lp, "%-*s", width, tstr);
}

/*
 * compare_info - compare info from two cfga_list_data structs
 */
static int
compare_info(
    cfga_list_data_t *p1,
    cfga_list_data_t *p2,
    match_type_t match_type)
{
    switch (match_type) {
    case CFGA_MATCH_NOFILTER:
        return (0);
    case CFGA_MATCH_ORDER:
    default:
        return (strncmp(p1->ap_info, p2->ap_info,
            sizeof (p2->ap_info)));
    }
}

/*
 * print_info - print info from cfga_list_data struct
 */
static void
print_info(
    cfga_list_data_t *p,
    int width,
    char *lp)
{
    (void) sprintf(lp, "%-*.*s", width, sizeof (p->ap_info), p->ap_info);
}

/*
 * compare_type - compare type from two cfga_list_data structs
 *
 * For partial matches, argument order is significant. The filtering criterion
 * should be the first argument.
 */
static int
compare_type(
    cfga_list_data_t *p1,
    cfga_list_data_t *p2,
    match_type_t match_type)
{
    switch (match_type) {
    case CFGA_MATCH_NOFILTER:
        return (0);
    case CFGA_MATCH_PARTIAL:
        return (strncmp(p1->ap_type, p2->ap_type, strlen(p1->ap_type)));
    case CFGA_MATCH_EXACT:
    case CFGA_MATCH_ORDER:
    default:
        return (strncmp(p1->ap_type, p2->ap_type,
            sizeof (p2->ap_type)));
    }
}

/*
 * print_type - print type from cfga_list_data struct
 */
static void
print_type(
    cfga_list_data_t *p,
    int width,
    char *lp)
{
    (void) sprintf(lp, "%-*.*s", width, sizeof (p->ap_type), p->ap_type);
}


/*
 * compare_class - compare class from two cfga_list_data structs
 *
 * For partial matches, argument order is significant. The filtering criterion
 * should be the first argument.
 */
static int
compare_class(
    cfga_list_data_t *p1,
    cfga_list_data_t *p2,
    match_type_t match_type)
{

    switch (match_type) {
    case CFGA_MATCH_NOFILTER:
        return (0);
    case CFGA_MATCH_PARTIAL:
        return (strncmp(p1->ap_class, p2->ap_class,
            strlen(p1->ap_class)));
    case CFGA_MATCH_EXACT:
    case CFGA_MATCH_ORDER:
    default:
        return (strncmp(p1->ap_class, p2->ap_class,
            sizeof (p2->ap_class)));
    }
}

/*
 * print_class - print class from cfga_list_data struct
 */
static void
print_class(
    cfga_list_data_t *p,
    int width,
    char *lp)
{
    (void) sprintf(lp, "%-*.*s", width, sizeof (p->ap_class), p->ap_class);
}
/*
 * print_busy - print busy from cfga_list_data struct
 */
/* ARGSUSED */
static void
print_busy(
    cfga_list_data_t *p,
    int width,
    char *lp)
{
    if (p->ap_busy)
        (void) sprintf(lp, "%-*.*s", width, width, "y");
    else
        (void) sprintf(lp, "%-*.*s", width, width, "n");
}

/*
 * print_phys_id - print physical ap_id
 */
static void
print_phys_id(
    cfga_list_data_t *p,
    int width,
    char *lp)
{
    (void) sprintf(lp, "%-*.*s", width, sizeof (p->ap_phys_id),
        p->ap_phys_id);
}


/*
 * find_field - find the named field
 */
static struct field_info *
find_field(char *fname)
{
    struct field_info *fldp;

    for (fldp = all_fields; fldp < &all_fields[N_FIELDS]; fldp++)
        if (strcmp(fname, fldp->name) == 0)
            return (fldp);
    return (NULL);
}

/*
 * usage_field - print field usage
 */
static void
usage_field()
{
    struct field_info *fldp = NULL;
    const char *sep;
    static char field_list[] = "%s: print or sort fields must be one of:";

    (void) fprintf(stderr, gettext(field_list), cmdname);
    sep = "";

    for (fldp = all_fields; fldp < &all_fields[N_FIELDS]; fldp++) {
        (void) fprintf(stderr, "%s %s", sep, fldp->name);
        sep = ",";
    }
    (void) fprintf(stderr, "\n");
}

/*
 * compare_null - null comparison routine
 */
/*ARGSUSED*/
static int
compare_null(
    cfga_list_data_t *p1,
    cfga_list_data_t *p2,
    match_type_t match_type)
{
    return (0);
}

/*
 * print_null - print out a field of spaces
 */
/*ARGSUSED*/
static void
print_null(
    cfga_list_data_t *p,
    int width,
    char *lp)
{
    (void) sprintf(lp, "%-*s", width, "");
}

/*
 * do_config_list - directs the output of the listing functions
 */
static int
do_config_list(
    int l_argc,
    char *l_argv[],
    cfga_list_data_t *statlist,
    int nlist,
    char *sortp,
    char *colsp,
    char *cols2p,
    int noheadings,
    char *delimp,
    post_filter_t *post_filtp,
    int dyn_exp)
{
    int nprcols = 0, ncols2 = 0;
    struct print_col *prnt_list = NULL;
    int napids_to_list = 0;
    FILE *fp = NULL;
    int f_err;
    cfga_list_data_t **sel_boards = NULL;
    int nsel = 0;
    int i, j;
    cfga_err_t ret;

    ap_arg_t *arg_array = NULL;
    ap_out_t *out_array = NULL;


    sort_list = NULL;
    f_err = 0;
    fp = stdout;
    nsort_list = count_fields(sortp, FDELIM);
    if (nsort_list != 0) {
        sort_list = config_calloc_check(nsort_list,
            sizeof (*sort_list));
        if (sort_list == NULL) {
            ret = CFGA_LIB_ERROR;
            goto out;
        }
        f_err |= process_sort_fields(nsort_list, sort_list, sortp);
    } else
        sort_list = NULL;

    nprcols = count_fields(colsp, FDELIM);
    if ((ncols2 = count_fields(cols2p, FDELIM)) > nprcols)
        nprcols = ncols2;
    if (nprcols != 0) {
        prnt_list = config_calloc_check(nprcols, sizeof (*prnt_list));
        if (prnt_list == NULL) {
            ret = CFGA_LIB_ERROR;
            goto out;
        }
        f_err |= process_fields(nprcols, prnt_list, 0, colsp);
        if (ncols2 != 0)
            f_err |= process_fields(nprcols, prnt_list, 1, cols2p);
    } else
        prnt_list = NULL;

    if (f_err) {
        usage_field();
        ret = CFGA_ERROR;
        goto out;
    }

    /* Create an array of all user args (if any) */
    if (l_argc != 0) {
        int i, j;

        napids_to_list = 0;

        for (i = 0; i < l_argc; i++) {
            napids_to_list += count_fields(l_argv[i], ARG_DELIM);
        }

        arg_array = config_calloc_check(napids_to_list,
            sizeof (*arg_array));
        if (arg_array == NULL) {
            ret = CFGA_LIB_ERROR;
            goto out;
        }

        for (i = 0, j = 0; i < l_argc; i++) {
            int n;

            n = count_fields(l_argv[i], ARG_DELIM);
            if (n == 0) {
                continue;
            } else if (n == 1) {
                arg_array[j].arg = l_argv[i];
                arg_array[j].resp = 0;
                j++;
            } else {
                char *cp, *ncp;

                cp = l_argv[i];
                for (;;) {
                    arg_array[j].arg = cp;
                    arg_array[j].resp = 0;
                    j++;
                    ncp = strchr(cp, ARG_DELIM);
                    if (ncp == NULL)
                        break;
                    *ncp = '\0';
                    cp = ncp + 1;
                }
            }
        }
        assert(j == napids_to_list);
    } else {
        napids_to_list = 0;
        arg_array = NULL;
    }

    assert(nlist != 0);

    out_array = config_calloc_check(nlist, sizeof (*out_array));
    if (out_array == NULL) {
        ret = CFGA_LIB_ERROR;
        goto out;
    }


    /* create a list of output stat data */
    for (i = 0; i < nlist; i++) {
        out_array[i].ldatap = &statlist[i];
        out_array[i].req = 0;
    }

    /*
     * Mark all user input which got atleast 1 stat data in response
     */
    for (i = 0; i < napids_to_list; i++) {
        arg_got_resp(&arg_array[i], out_array, nlist, dyn_exp);
    }

    /*
     * Process output data
     */
    nsel = 0;
    for (i = 0; i < nlist; i++) {
        /*
         * Mark all the stats which were actually requested by user
         */
        out_was_req(&out_array[i], arg_array, napids_to_list, 0);
        if (out_array[i].req == 0 && dyn_exp) {
            /*
             * Try again without the dynamic component for the
             * if dynamic expansion was requested.
             */
            out_was_req(&out_array[i], arg_array,
                napids_to_list, 1);
        }

        /*
         * post filter data which was actually requested
         */
        if (out_array[i].req == 1) {
            do_post_filter(&out_array[i], post_filtp, &nsel);
        }
    }

    sel_boards = config_calloc_check(nsel, sizeof (*sel_boards));
    if (sel_boards == NULL) {
        ret = CFGA_LIB_ERROR;
        goto out;
    }

    for (i = 0, j = 0; i < nlist; i++) {
        if (out_array[i].req == 1) {
            sel_boards[j] = out_array[i].ldatap;
            j++;
        }
    }

    assert(j == nsel);

    /*
     * Print headings even if no list entries - Bug or feature ?
     */
    if (!noheadings && prnt_list != NULL) {
        if ((ret = print_fields(nprcols, prnt_list, 1, 0,
            delimp, NULL, fp)) != CFGA_OK) {
            goto out;
        }
        if (ncols2 != 0) {
            if ((ret = print_fields(nprcols, prnt_list, 1,
                1, delimp, NULL, fp)) != CFGA_OK) {
                goto out;
            }
        }
    }

    if (nsel != 0) {
        if (sort_list != NULL && nsel > 1) {
            qsort(sel_boards, nsel, sizeof (sel_boards[0]),
                ldata_compare);
        }

        if (prnt_list != NULL) {
            for (i = 0; i < nsel; i++) {
                if ((ret = print_fields(nprcols,
                    prnt_list, 0, 0, delimp, sel_boards[i], fp))
                    != CFGA_OK)
                    goto out;
                if (ncols2 != 0) {
                    if ((ret = print_fields(
                        nprcols, prnt_list, 0, 1, delimp,
                        sel_boards[i], fp)) != CFGA_OK)
                        goto out;
                }
            }
        }
    }
    /*
     * Go thru the argument list and notify user about args
     * which did not have a match
     */
    report_no_response(arg_array, napids_to_list);
    ret = CFGA_OK;
    /*FALLTHRU*/
out:
    S_FREE(sel_boards);
    S_FREE(arg_array);
    S_FREE(out_array);

    S_FREE(sort_list);
    S_FREE(prnt_list);

    return (ret);
}


/*
 * Mark all user inputs which got a response
 */
static void
arg_got_resp(ap_arg_t *inp, ap_out_t *out_array, int nouts, int dyn_exp)
{
    int i;
    cfga_ap_types_t type;


    if (nouts == 0) {
        return;
    }

    type = find_arg_type(inp->arg);

    /*
     * Go through list of output stats and check if argument
     * produced that output
     */
    for (i = 0; i < nouts; i++) {
        if (type == PHYSICAL_AP_ID) {
            if (config_ap_id_cmp(out_array[i].ldatap->ap_phys_id,
                inp->arg) == 0) {
                break;
            }
        } else if (type == LOGICAL_AP_ID) {
            if (config_ap_id_cmp(out_array[i].ldatap->ap_log_id,
                inp->arg) == 0) {
                break;
            }
        } else if (type == AP_TYPE) {
            /*
             * An AP_TYPE argument cannot generate dynamic
             * attachment point stats unless dynamic expansion was
             * requested by user.
             */
            if (!dyn_exp && get_dyn(out_array[i].ldatap->ap_log_id)
                != NULL) {
                continue;
            }

            if (strncmp(out_array[i].ldatap->ap_log_id, inp->arg,
                strlen(inp->arg)) == 0) {
                break;
            }
        } else {
            return;
        }
    }

    if (i < nouts) {
        inp->resp = 1;
    }
}

/* Mark all stat data which were requested by user */
static void
out_was_req(ap_out_t *outp, ap_arg_t *in_array, int nargs, int no_dyn)
{
    int i;
    cfga_ap_types_t type = UNKNOWN_AP;
    char physid[MAXPATHLEN], logid[MAXPATHLEN];


    /* If no user args, all output is acceptable */
    if (nargs == 0) {
        outp->req = 1;
        return;
    }


    (void) snprintf(physid, sizeof (physid), "%s",
        outp->ldatap->ap_phys_id);
    (void) snprintf(logid, sizeof (logid), "%s", outp->ldatap->ap_log_id);

    /*
     * Do comparison with or without dynamic component as requested by
     * user.
     */
    if (no_dyn) {
        /* Remove the dynamic component */
        remove_dyn(physid);
        remove_dyn(logid);
    }

    for (i = 0; i < nargs; i++) {
        type = find_arg_type(in_array[i].arg);
        if (type == PHYSICAL_AP_ID) {

            if (config_ap_id_cmp(in_array[i].arg, physid) == 0) {
                break;
            }
        } else if (type == LOGICAL_AP_ID) {

            if (config_ap_id_cmp(in_array[i].arg, logid) == 0) {
                break;
            }
        } else if (type == AP_TYPE) {
            /*
             * Aptypes cannot generate dynamic attachment
             * points unless dynamic expansion is specified.
             * in which case this routine would be called a
             * 2nd time with the no_dyn flag set and there
             * would be no dynamic ap_ids.
             */
            if (get_dyn(logid) != NULL) {
                continue;
            }

            if (strncmp(in_array[i].arg, logid,
                strlen(in_array[i].arg)) == 0) {
                break;
            }
        } else {
            continue;
        }
    }

    if (i < nargs) {
        /* Ok, this output was requested */
        outp->req = 1;
    }

}

static void
do_post_filter(ap_out_t *outp, post_filter_t *post_filtp, int *nselp)
{
    int i;

    if (outp->req != 1) {
        return;
    }

    /*
     * For fields without filtering (CFGA_MATCH_NOFILTER),
     * compare always returns 0 (success)
     */
    for (i = 0; i < N_FIELDS; i++) {
        /*
         * Note: Order is important for partial match (via strncmp).
         * The first argument for compare must be the filter.
         */
        if (all_fields[i].compare(&post_filtp->ldata, outp->ldatap,
            post_filtp->match_type_p[i])) {
            outp->req = 0;  /* Blocked by filter */
            return;
        }
    }

    /*
     * Passed through filter
     */
    (*nselp)++;
}

static void
report_no_response(ap_arg_t *arg_array, int nargs)
{
    int i;

    if (nargs == 0) {
        return;
    }


    /*
     * nop if no user arguments
     */
    for (i = 0; i < nargs; i++) {
        if (arg_array[i].resp == 0) {
            (void) fprintf(stderr,
                gettext("%s: No matching library found\n"),
                arg_array[i].arg);
        }
    }
}

/*
 * ldata_compare - compare two attachment point list data structures.
 */
static int
ldata_compare(
    const void *vb1,
    const void *vb2)
{
    int i;
    int res = -1;
    cfga_list_data_t *b1, *b2;


    b1 = *(cfga_list_data_t **)vb1;
    b2 = *(cfga_list_data_t **)vb2;

    for (i = 0; i < nsort_list; i++) {
        res = (*(sort_list[i].fld->compare))(b1, b2, CFGA_MATCH_ORDER);
        if (res != 0) {
            if (sort_list[i].reverse)
                res = -res;
            break;
        }
    }

    return (res);
}

/*
 * count_fields - Count the number of fields, using supplied delimiter.
 */
static int
count_fields(char *fspec, char delim)
{
    char *cp = NULL;
    int n;

    if (fspec == 0 || *fspec == '\0')
        return (0);
    n = 1;
    for (cp = fspec; *cp != '\0'; cp++)
        if (*cp == delim)
            n++;
    return (n);
}

/*
 * get_field
 * This function is not a re-implementation of strtok().
 * There can be null fields - strtok() eats spans of delimiters.
 */
static char *
get_field(char **fspp)
{
    char *cp = NULL, *fld;

    fld = *fspp;

    if (fld != NULL && *fld == '\0')
        fld = NULL;

    if (fld != NULL) {
        cp = strchr(*fspp, FDELIM);
        if (cp == NULL) {
            *fspp = NULL;
        } else {
            *cp = '\0';
            *fspp = cp + 1;
            if (*fld == '\0')
                fld = NULL;
        }
    }
    return (fld);
}

/*
 * process_fields -
 */
static int
process_fields(
    int ncol,
    struct print_col *list,
    int line2,
    char *fmt)
{
    struct print_col *pp = NULL;
    struct field_info *fldp = NULL;
    char *fmtx;
    char *fldn;
    int err;

    err = 0;
    fmtx = fmt;
    for (pp = list; pp < &list[ncol]; pp++) {
        fldn = get_field(&fmtx);
        fldp = &null_field;
        if (fldn != NULL) {
            struct field_info *tfldp;

            tfldp = find_field(fldn);
            if (tfldp != NULL) {
                fldp = tfldp;
            } else {
                (void) fprintf(stderr, gettext(unk_field),
                    cmdname, fldn);
                err = 1;
            }
        }
        if (line2) {
            pp->line2 = fldp;
            if (fldp->width > pp->width)
                pp->width = fldp->width;
        } else {
            pp->line1 = fldp;
            pp->width = fldp->width;
        }
    }
    return (err);
}

/*
 * process_sort_fields -
 */
static int
process_sort_fields(
    int nsort,
    struct sort_el *list,
    char *fmt)
{
    int i;
    int rev;
    struct field_info *fldp = NULL;
    char *fmtx;
    char *fldn;
    int err;

    err = 0;
    fmtx = fmt;
    for (i = 0; i < nsort; i++) {
        fldn = get_field(&fmtx);
        fldp = &null_field;
        rev = 0;
        if (fldn != NULL) {
            struct field_info *tfldp = NULL;

            if (*fldn == '-') {
                rev = 1;
                fldn++;
            }
            tfldp = find_field(fldn);
            if (tfldp != NULL) {
                fldp = tfldp;
            } else {
                (void) fprintf(stderr, gettext(unk_field),
                    cmdname, fldn);
                err = 1;
            }
        }
        list[i].reverse = rev;
        list[i].fld = fldp;
    }
    return (err);
}

/*
 * print_fields -
 */
static cfga_err_t
print_fields(
    int ncol,
    struct print_col *list,
    int heading,
    int line2,
    char *delim,
    cfga_list_data_t *bdp,
    FILE *fp)
{
    char *del = NULL;
    struct print_col *pp = NULL;
    struct field_info *fldp = NULL;
    static char *outline, *end;
    char *lp;

    if (outline == NULL) {
        int out_len, delim_len;

        delim_len = strlen(delim);
        out_len = 0;
        for (pp = list; pp < &list[ncol]; pp++) {
            out_len += pp->width;
            out_len += delim_len;
        }
        out_len -= delim_len;
        outline = config_calloc_check(out_len + 1, 1);
        if (outline == NULL) {
            return (CFGA_LIB_ERROR);
        }
        end = &outline[out_len + 1];
    }

    lp = outline;
    del = "";
    for (pp = list; pp < &list[ncol]; pp++) {
        fldp = line2 ? pp->line2 : pp->line1;
        (void) snprintf(lp, end - lp, "%s", del);
        lp += strlen(lp);
        if (heading) {
            (void) snprintf(lp, end - lp, "%-*s",
                fldp->width, fldp->heading);
        } else {
            (*fldp->printfn)(bdp, fldp->width, lp);
        }
        lp += strlen(lp);
        del = delim;
    }

    /*
     * Trim trailing spaces
     */
    while (--lp >= outline && *lp == ' ')
        *lp = '\0';
    (void) fprintf(fp, "%s\n", outline);
    return (CFGA_OK);
}

/*
 * config_calloc_check - perform allocation, check result and
 * set error indicator
 */
static void *
config_calloc_check(
    size_t nelem,
    size_t elsize)
{
    void *p;
    static char alloc_fail[] =
"%s: memory allocation failed (%d*%d bytes)\n";


    p = calloc(nelem, elsize);
    if (p == NULL) {
        (void) fprintf(stderr, gettext(alloc_fail), cmdname,
            nelem, elsize);
    }
    return (p);
}

/*
 * find_arg_type - determine if an argument is an ap_id or an ap_type.
 */
static cfga_ap_types_t
find_arg_type(const char *ap_id)
{
    struct stat sbuf;
    cfga_ap_types_t type;
    char *mkr = NULL, *cp;
    int size_ap = 0, size_mkr = 0, digit = 0, i = 0;
    char path[MAXPATHLEN];
    char apbuf[MAXPATHLEN];
    size_t len;


    /*
     * sanity checks
     */
    if (ap_id == NULL || *ap_id == '\0') {
        return (UNKNOWN_AP);
    }

    /*
     * Mask the dynamic component if any
     */
    if ((cp = GET_DYN(ap_id)) != NULL) {
        len = cp - ap_id;
    } else {
        len = strlen(ap_id);
    }

    if (len >= sizeof (apbuf)) {
        return (UNKNOWN_AP);
    }

    (void) strncpy(apbuf, ap_id, len);
    apbuf[len] = '\0';

    /*
     * If it starts with a slash and is stat-able
     * its a physical.
     */
    if (*apbuf == '/' && stat(apbuf, &sbuf) == 0) {
        return (PHYSICAL_AP_ID);
    }

    /*
     * Is this a symlink in CFGA_DEV_DIR ?
     */
    (void) snprintf(path, sizeof (path), "%s/%s", CFGA_DEV_DIR, apbuf);

    if (lstat(path, &sbuf) == 0 && S_ISLNK(sbuf.st_mode) &&
        stat(path, &sbuf) == 0) {
        return (LOGICAL_AP_ID);
    }

    /*
     * Check for ":" which is always present in an ap_id but not maybe
     * present or absent in an ap_type.
     * We need to check that the characters right before the : are digits
     * since an ap_id is of the form <name><instance>:<specific ap name>
     */
    if ((mkr = strchr(apbuf, ':')) == NULL)  {
        type = AP_TYPE;
    } else {
        size_ap = strlen(apbuf);
        size_mkr = strlen(mkr);
        mkr = apbuf;

        digit = 0;
        for (i = size_ap - size_mkr - 1;  i > 0; i--) {
            if ((int)isdigit(mkr[i])) {
                digit++;
                break;
            }
        }
        if (digit == 0) {
            type = AP_TYPE;
        } else {
            type = LOGICAL_AP_ID;
        }
    }

    return (type);
}


static char *
get_dyn(const char *ap_id)
{
    if (ap_id == NULL) {
        return (NULL);
    }

    return (strstr(ap_id, CFGA_DYN_SEP));
}

/*
 * removes the dynamic component
 */
static void
remove_dyn(char *ap_id)
{
    char *cp;

    if (ap_id == NULL) {
        return;
    }

    cp = strstr(ap_id, CFGA_DYN_SEP);
    if (cp != NULL) {
        *cp = '\0';
    }
}


static char *
s_strdup(char *str)
{
    char *dup;

    /*
     * sometimes NULL strings may be passed in (see DEF_COLS2). This
     * is not an error.
     */
    if (str == NULL) {
        return (NULL);
    }

    dup = strdup(str);
    if (dup == NULL) {
        (void) fprintf(stderr,
            "%s \"%s\"\n", gettext("Cannot copy string"), str);
        return (NULL);
    }

    return (dup);
}