/*-
 * Copyright (c) 2003-2009 Tim Kientzle
 * 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.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``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 AUTHOR(S) 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 "test.h"
__FBSDID("$FreeBSD$");

static void
gname_cleanup(void *d)
{
    int *mp = d;
    assertEqualInt(*mp, 0x13579);
    *mp = 0x2468;
}

static const char *
gname_lookup(void *d, gid_t g)
{
    int *mp = d;
    assertEqualInt(*mp, 0x13579);
    if (g == 1)
        return ("FOOGROUP");
    return ("NOTFOOGROUP");
}

static void
uname_cleanup(void *d)
{
    int *mp = d;
    assertEqualInt(*mp, 0x1234);
    *mp = 0x2345;
}

static const char *
uname_lookup(void *d, uid_t u)
{
    int *mp = d;
    assertEqualInt(*mp, 0x1234);
    if (u == 1)
        return ("FOO");
    return ("NOTFOO");
}

/* We test GID lookup by looking up the name of group number zero and
 * checking it against the following list.  If your system uses a
 * different conventional name for group number zero, please extend
 * this array and send us a patch.  As always, please keep this list
 * sorted alphabetically.
 */
static const char *zero_groups[] = {
    "root",   /* Linux */
    "wheel"  /* BSD */
};

DEFINE_TEST(test_read_disk)
{
    struct archive *a;
    int gmagic = 0x13579, umagic = 0x1234;
    const char *p;
    size_t i;

    assert((a = archive_read_disk_new()) != NULL);

    /* Default uname/gname lookups always return NULL. */
    assert(archive_read_disk_gname(a, 0) == NULL);
    assert(archive_read_disk_uname(a, 0) == NULL);

    /* Register some weird lookup functions. */
    assertEqualInt(ARCHIVE_OK, archive_read_disk_set_gname_lookup(a,
               &gmagic, &gname_lookup, &gname_cleanup));
    /* Verify that our new function got called. */
    assertEqualString(archive_read_disk_gname(a, 0), "NOTFOOGROUP");
    assertEqualString(archive_read_disk_gname(a, 1), "FOOGROUP");

    /* De-register. */
    assertEqualInt(ARCHIVE_OK,
        archive_read_disk_set_gname_lookup(a, NULL, NULL, NULL));
    /* Ensure our cleanup function got called. */
    assertEqualInt(gmagic, 0x2468);

    /* Same thing with uname lookup.... */
    assertEqualInt(ARCHIVE_OK, archive_read_disk_set_uname_lookup(a,
               &umagic, &uname_lookup, &uname_cleanup));
    assertEqualString(archive_read_disk_uname(a, 0), "NOTFOO");
    assertEqualString(archive_read_disk_uname(a, 1), "FOO");
    assertEqualInt(ARCHIVE_OK,
        archive_read_disk_set_uname_lookup(a, NULL, NULL, NULL));
    assertEqualInt(umagic, 0x2345);

    /* Try the standard lookup functions. */
    if (archive_read_disk_set_standard_lookup(a) != ARCHIVE_OK) {
        skipping("standard uname/gname lookup");
    } else {
#if defined(__CYGWIN__)
        skipping("standard uname/gname lookup; typically no user with uid=0 on cygwin platform");
        i = 0;
        p = zero_groups[0]; /* avoid unused warnings */
#else
        /* XXX Someday, we may need to generalize this the
         * same way we generalized the group name check below.
         * That's needed only if we encounter a system where
         * uid 0 is not "root". XXX */
        assertEqualString(archive_read_disk_uname(a, 0), "root");

        /* Get the group name for group 0 and see if it makes sense. */
        p = archive_read_disk_gname(a, 0);
        if (assert(p != NULL)) {
            i = 0;
            while (i < sizeof(zero_groups)/sizeof(zero_groups[0])) {
                if (strcmp(zero_groups[i], p) == 0)
                    break;
                ++i;
            }
            if (i == sizeof(zero_groups)/sizeof(zero_groups[0])) {
                /* If you get a failure here, either
                 * archive_read_disk_gname() isn't working or
                 * your system uses a different name for group
                 * number zero.  If the latter, please add a
                 * new entry to the zero_groups[] array above.
                 */
                failure("group 0 didn't have any of the expected names");
                assertEqualString(p, zero_groups[0]);
            }
        }
#endif
    }

    /* Deregister again and verify the default lookups again. */
    assertEqualInt(ARCHIVE_OK,
        archive_read_disk_set_gname_lookup(a, NULL, NULL, NULL));
    assertEqualInt(ARCHIVE_OK,
        archive_read_disk_set_uname_lookup(a, NULL, NULL, NULL));
    assert(archive_read_disk_gname(a, 0) == NULL);
    assert(archive_read_disk_uname(a, 0) == NULL);

    /* Re-register our custom handlers. */
    gmagic = 0x13579;
    umagic = 0x1234;
    assertEqualInt(ARCHIVE_OK, archive_read_disk_set_gname_lookup(a,
               &gmagic, &gname_lookup, &gname_cleanup));
    assertEqualInt(ARCHIVE_OK, archive_read_disk_set_uname_lookup(a,
               &umagic, &uname_lookup, &uname_cleanup));

    /* Destroy the archive. */
    assertEqualInt(ARCHIVE_OK, archive_read_finish(a));

    /* Verify our cleanup functions got called. */
    assertEqualInt(gmagic, 0x2468);
    assertEqualInt(umagic, 0x2345);
}
