svr4pkg/installf/removef.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 2008 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */

/* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
/* All Rights Reserved */

#include <stdio.h>
#include <errno.h>
#include <string.h>
#include <limits.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/types.h>
#include <locale.h>
#include <libintl.h>
#include <pkglib.h>
#include <install.h>
#include <libinst.h>
#include <libadm.h>
#include "installf.h"

void
removef(int argc, char *argv[])
{
    struct cfextra *new;
    char    buf[PATH_MAX];
    char    *path;
    int flag;
    int len;
    int max_eptnum;

    flag = strcmp(argv[0], "-") == 0;

    eptnum = 0;
    max_eptnum = 64;    /* starting size of array */
    extlist = malloc(max_eptnum * sizeof (struct cfextra *));

    for (;;) {
        if (flag) {
            if (fgets(buf, PATH_MAX, stdin) == NULL)
                break;

            /* strip trailing new line */
            len = strlen(buf);
            if (buf[len - 1] == '\n')
                buf[len - 1] = '\0';

            path = buf;
        } else {
            if (argc-- <= 0)
                break;
            path = argv[argc];
        }

        /*
         * This strips the install root from the path using
         * a questionable algorithm. This should go away as
         * we define more precisely the command line syntax
         * with our '-R' option. - JST
         */
        path = orig_path_ptr(path);

        if (path == NULL) {
            logerr(gettext("ERROR: no pathname was provided"));
            warnflag++;
            continue;
        }

        if (*path != '/') {
            logerr(gettext(
                "WARNING: relative pathname <%s> ignored"), path);
            warnflag++;
            continue;
        }

        new = calloc(1, sizeof (struct cfextra));
        if (new == NULL) {
            progerr(strerror(errno));
            quit(99);
        }
        new->cf_ent.ftype = '-';

        (void) eval_path(&(new->server_path), &(new->client_path),
            &(new->map_path), path);

        new->cf_ent.path = new->client_path;

        extlist[eptnum++] = new;
        if (eptnum >= max_eptnum) {
            /* array size grows exponentially */
            max_eptnum <<= 1;
            extlist = realloc(extlist,
                max_eptnum * sizeof (struct cfextra *));
            if (extlist == NULL) {
                progerr(strerror(errno));
                quit(99);
            }
        }
    }
    extlist[eptnum] = (struct cfextra *)NULL;

    qsort((char *)extlist,
        (unsigned)eptnum, sizeof (struct cfextra *), cfentcmp);
}