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//==========================================================================

//

//      fileio1.c

//

//      Test fileio system

//

//==========================================================================

//####ECOSGPLCOPYRIGHTBEGIN####

// -------------------------------------------

// This file is part of eCos, the Embedded Configurable Operating System.

// Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.

//

// eCos is free software; you can redistribute it and/or modify it under

// the terms of the GNU General Public License as published by the Free

// Software Foundation; either version 2 or (at your option) any later version.

//

// eCos is distributed in the hope that it will be useful, but WITHOUT ANY

// WARRANTY; without even the implied warranty of MERCHANTABILITY or

// FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

// for more details.

//

// You should have received a copy of the GNU General Public License along

// with eCos; if not, write to the Free Software Foundation, Inc.,

// 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.

//

// As a special exception, if other files instantiate templates or use macros

// or inline functions from this file, or you compile this file and link it

// with other works to produce a work based on this file, this file does not

// by itself cause the resulting work to be covered by the GNU General Public

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//####ECOSGPLCOPYRIGHTEND####

//==========================================================================

//#####DESCRIPTIONBEGIN####

//

// Author(s):           nickg

// Contributors:        nickg, richard.panton@3glab.com, jlarmour

// Date:                2000-05-25

// Purpose:             Test fileio system

// Description:         This test uses the testfs to check out the initialization

//                      and basic operation of the fileio system

//

//####DESCRIPTIONEND####

//

//==========================================================================

#include <pkgconf/hal.h>

#include <pkgconf/io_fileio.h>

#include <pkgconf/isoinfra.h>

#include <pkgconf/system.h>

#include <unistd.h>

#include <fcntl.h>

#include <sys/stat.h>

#include <errno.h>

#include <string.h>

#include <dirent.h>

#include <stdio.h>

#include <cyg/fileio/fileio.h>

#include <cyg/infra/testcase.h>

#include <cyg/infra/diag.h>            // HAL polled output

#include <cyg/romfs/testromfs.h>  // Test ROMFS data

//==========================================================================

MTAB_ENTRY( romfs_mte1,

                   "/",

                   "romfs",

                   "",

                   (CYG_ADDRWORD) &filedata[0] );

//==========================================================================

#define SHOW_RESULT( _fn, _res ) \

diag_printf("<FAIL>: " #_fn "() returned %d %s\n", _res, _res<0?strerror(errno):"");

#define CHKFAIL_TYPE( _fn, _res, _type ) { \

if ( _res != -1 ) \

    diag_printf("<FAIL>: " #_fn "() returned %d (expected -1)\n", _res); \

else if ( errno != _type ) \

    diag_printf("<FAIL>: " #_fn "() failed with errno %d (%s),\n    expected %d (%s)\n", errno, strerror(errno), _type, strerror(_type) ); \

}

//==========================================================================

#define IOSIZE  100

#define LONGNAME1       "long_file_name_that_should_take_up_more_than_one_directory_entry_1"

#define LONGNAME2       "long_file_name_that_should_take_up_more_than_one_directory_entry_2"

//==========================================================================

#ifndef CYGINT_ISO_STRING_STRFUNCS

char *strcat( char *s1, const char *s2 )

{

    char *s = s1;

    while( *s1 ) s1++;

    while( (*s1++ = *s2++) != 0);

    return s;

}

#endif

//==========================================================================

static void listdir( char *name, int statp )

{

    int err;

    DIR *dirp;

    diag_printf("<INFO>: reading directory %s\n",name);

    dirp = opendir( name );

    if( dirp == NULL ) SHOW_RESULT( opendir, -1 );

    for(;;)

    {

        struct dirent *entry = readdir( dirp );

        if( entry == NULL )

            break;

        diag_printf("<INFO>: entry %14s",entry->d_name);

        if( statp )

        {

            char fullname[PATH_MAX];

            struct stat sbuf;

            if( name[0] )

            {

                strcpy(fullname, name );

                if( !(name[0] == '/' && name[1] == 0 ) )

                    strcat(fullname, "/" );

            }

            else fullname[0] = 0;

            strcat(fullname, entry->d_name );

            err = stat( fullname, &sbuf );

            if( err < 0 )

            {

                if( errno == ENOSYS )

                    diag_printf(" <no status available>");

                else SHOW_RESULT( stat, err );

            }

            else

            {

                diag_printf(" [mode %08x ino %08x nlink %d size %d]",

                            sbuf.st_mode,sbuf.st_ino,sbuf.st_nlink,sbuf.st_size);

            }

        }

        diag_printf("\n");

    }

    err = closedir( dirp );

    if( err < 0 ) SHOW_RESULT( stat, err );

}

//==========================================================================

#ifdef CYGPKG_FS_RAM

static void copyfile( char *name2, char *name1 )

{

    int err;

    char buf[IOSIZE];

    int fd1, fd2;

    ssize_t done, wrote;

    diag_printf("<INFO>: copy file %s -> %s\n",name2,name1);

    err = access( name1, F_OK );

    if( err < 0 && errno != EACCES ) SHOW_RESULT( access, err );

    err = access( name2, F_OK );

    if( err != 0 ) SHOW_RESULT( access, err );

    fd1 = open( name1, O_WRONLY|O_CREAT );

    if( fd1 < 0 ) SHOW_RESULT( open, fd1 );

    fd2 = open( name2, O_RDONLY );

    if( fd2 < 0 ) SHOW_RESULT( open, fd2 );

    for(;;)

    {

        done = read( fd2, buf, IOSIZE );

        if( done < 0 ) SHOW_RESULT( read, done );

        if( done == 0 ) break;

        wrote = write( fd1, buf, done );

        if( wrote != done ) SHOW_RESULT( write, wrote );

        if( wrote != done ) break;

    }

    err = close( fd1 );

    if( err < 0 ) SHOW_RESULT( close, err );

    err = close( fd2 );

    if( err < 0 ) SHOW_RESULT( close, err );

}

#endif

//==========================================================================

static void comparefiles( char *name2, char *name1 )

{

    int err;

    char buf1[IOSIZE];

    char buf2[IOSIZE];

    int fd1, fd2;

    ssize_t done1, done2;

    int i;

    diag_printf("<INFO>: compare files %s == %s\n",name2,name1);

    err = access( name1, F_OK );

    if( err != 0 ) SHOW_RESULT( access, err );

    err = access( name1, F_OK );

    if( err != 0 ) SHOW_RESULT( access, err );

    fd1 = open( name1, O_RDONLY );

    if( fd1 < 0 ) SHOW_RESULT( open, fd1 );

    fd2 = open( name2, O_RDONLY );

    if( fd2 < 0 ) SHOW_RESULT( open, fd2 );

    for(;;)

    {

        done1 = read( fd1, buf1, IOSIZE );

        if( done1 < 0 ) SHOW_RESULT( read, done1 );

        done2 = read( fd2, buf2, IOSIZE );

        if( done2 < 0 ) SHOW_RESULT( read, done2 );

        if( done1 != done2 )

            diag_printf("Files different sizes\n");

        if( done1 == 0 ) break;

        for( i = 0; i < done1; i++ )

            if( buf1[i] != buf2[i] )

            {

                diag_printf("buf1[%d](%02x) != buf1[%d](%02x)\n",i,buf1[i],i,buf2[i]);

                CYG_TEST_FAIL("Data in files not equal\n");

            }

    }

    err = close( fd1 );

    if( err < 0 ) SHOW_RESULT( close, err );

    err = close( fd2 );

    if( err < 0 ) SHOW_RESULT( close, err );

}

//==========================================================================

// main

int main( int argc, char **argv )

{

    int err;

    char address[16];

    CYG_TEST_INIT();

    // --------------------------------------------------------------

    diag_printf("<INFO>: ROMFS root follows\n");

    listdir( "/", true );

    diag_printf("<INFO>: cd /etc\n" );

    err = chdir( "/etc" );

    if ( err < 0 ) SHOW_RESULT( chdir, err );

    diag_printf("<INFO>: ROMFS list of '' follows\n");

    listdir( "", true );

    diag_printf("<INFO>: ROMFS list of /etc follows\n");

    listdir( "/etc", true );

    diag_printf("<INFO>: ROMFS list of . follows\n");

    listdir( ".", true );

#ifdef CYGPKG_FS_RAM

    err = mount( "", "/var", "ramfs" );

    if( err < 0 ) SHOW_RESULT( mount, err );

    copyfile( "/etc/passwd", "/var/passwd_copy" );

    comparefiles( "/etc/passwd", "/var/passwd_copy" );

#endif

    diag_printf("<INFO>: ROMFS list of / follows\n");

#ifdef CYGPKG_FS_RAM

    diag_printf("<INFO>: Note that /var now gives stat() info for RAMFS\n");

#endif

    listdir( "/", true );

    diag_printf("<INFO>: Mount ROMFS again onto /mnt\n");

    sprintf( address, "%p", (void*)&filedata[0] );

    err = mount( address, "/mnt", "romfs" );

    if( err < 0 ) SHOW_RESULT( mount, err );

    comparefiles( "/etc/passwd", "/mnt/etc/passwd" );

    err = mkdir( "/foo", 0 );

    CHKFAIL_TYPE( mkdir, err, EROFS );

    err = rename( "/var", "/tmp" );     // RAMFS is mounted here

#ifdef CYGPKG_FS_RAM

    CHKFAIL_TYPE( rename, err, EXDEV );

#else

    CHKFAIL_TYPE( rename, err, EROFS );

#endif

    err = rename( "/var/passwd_copy", "/mnt/etc/passwd_copy" );

    CHKFAIL_TYPE( rename, err, EXDEV );

    err = rename( "/etc", "/tmp" );

    CHKFAIL_TYPE( rename, err, EROFS );

    diag_printf("<INFO>: cd /etc\n");

    err = chdir( "/etc" );

    if( err < 0 ) SHOW_RESULT( chdir, err );

    err = chdir( "/mnt/etc" );

    if( err < 0 ) SHOW_RESULT( chdir, err );

    listdir( ".", true );

    diag_printf("<INFO>: unlink /tmp\n");

    err = unlink( "/tmp" );

    CHKFAIL_TYPE( unlink, err, EROFS );

    diag_printf("<INFO>: mount random area\n");

    sprintf(address, "%p", (void*)(&filedata[0] + 0x100));

    err = mount( address, "/tmp", "romfs" );

    CHKFAIL_TYPE( mount, err, ENOENT );

    err = umount( "/mnt" );

    if( err < 0 ) SHOW_RESULT( umount, err );

    err = umount( "/var" );

#ifdef CYGPKG_FS_RAM

    if( err < 0 ) SHOW_RESULT( umount, err );

#else

    CHKFAIL_TYPE( umount, err, EINVAL );

#endif

    err = umount( "/" );

    if( err < 0 ) SHOW_RESULT( umount, err );

    CYG_TEST_PASS_FINISH("fileio1");

}

// -------------------------------------------------------------------------

// EOF fileio1.c