tags/2.0/text.c

  /********************************************************************\
  * Axel -- A lighter download accelerator for Linux and other Unices. *
  *                                                                    *
  * Copyright 2001 Wilmer van der Gaast                                *
  \********************************************************************/

/* Text interface                                                       */

/*
  This program 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 of the License, or
  (at your option) any later version.

  This program 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 with
  the Debian GNU/Linux distribution in file /usr/doc/copyright/GPL;
  if not, write to the Free Software Foundation, Inc., 59 Temple Place,
  Suite 330, Boston, MA  02111-1307  USA
*/

#include "axel.h"

static void stop( int signal );
static char *size_human( long long int value );
static char *time_human( int value );
static void print_commas( long long int bytes_done );
static void print_alternate_output( axel_t *axel );
static void print_help();
static void print_version();
static void print_messages( axel_t *axel );

int run = 1;

#ifdef NOGETOPTLONG
#define getopt_long( a, b, c, d, e ) getopt( a, b, c )
#else
static struct option axel_options[] =
{
        /* name                 has_arg flag    val */
        { "max-speed",          1,      NULL,   's' },
        { "num-connections",    1,      NULL,   'n' },
        { "output",             1,      NULL,   'o' },
        { "search",             2,      NULL,   'S' },
        { "no-proxy",           0,      NULL,   'N' },
        { "quiet",              0,      NULL,   'q' },
        { "verbose",            0,      NULL,   'v' },
        { "help",               0,      NULL,   'h' },
        { "version",            0,      NULL,   'V' },
        { "alternate",          0,      NULL,   'a' },
        { "header",             1,      NULL,   'H' },
        { NULL,                 0,      NULL,   0 }
};
#endif

/* For returning string values from functions                           */
static char string[MAX_STRING];


int main( int argc, char *argv[] )
{
        char fn[MAX_STRING] = "";
        int do_search = 0;
        search_t *search;
        conf_t conf[1];
        axel_t *axel;
        int i, j, cur_head = 0;
        char *s;
        
#ifdef I18N
        setlocale( LC_ALL, "" );
        bindtextdomain( PACKAGE, LOCALE );
        textdomain( PACKAGE );
#endif
        
        if( !conf_init( conf ) )
        {
                return( 1 );
        }
        
        opterr = 0;
        
        j = -1;
        while( 1 )
        {
                int option;
                
                option = getopt_long( argc, argv, "s:n:o:S::NqvhVaH:", axel_options, NULL );
                if( option == -1 )
                        break;
                
                switch( option )
                {
                case 'H':
                        strncpy( conf->add_header[cur_head++], optarg, MAX_STRING );
                        break;
                case 's':
                        if( !sscanf( optarg, "%i", &conf->max_speed ) )
                        {
                                print_help();
                                return( 1 );
                        }
                        break;
                case 'n':
                        if( !sscanf( optarg, "%i", &conf->num_connections ) )
                        {
                                print_help();
                                return( 1 );
                        }
                        break;
                case 'o':
                        strncpy( fn, optarg, MAX_STRING );
                        break;
                case 'S':
                        do_search = 1;
                        if( optarg != NULL )
                        if( !sscanf( optarg, "%i", &conf->search_top ) )
                        {
                                print_help();
                                return( 1 );
                        }
                        break;
                case 'a':
                        conf->alternate_output = 1;
                        break;
                case 'N':
                        *conf->http_proxy = 0;
                        break;
                case 'h':
                        print_help();
                        return( 0 );
                case 'v':
                        if( j == -1 )
                                j = 1;
                        else
                                j ++;
                        break;
                case 'V':
                        print_version();
                        return( 0 );
                case 'q':
                        close( 1 );
                        conf->verbose = -1;
                        if( open( "/dev/null", O_WRONLY ) != 1 )
                        {
                                fprintf( stderr, _("Can't redirect stdout to /dev/null.\n") );
                                return( 1 );
                        }
                        break;
                default:
                        print_help();
                        return( 1 );
                }
        }
        conf->add_header_count = cur_head;
        if( j > -1 )
                conf->verbose = j;
        
        if( argc - optind == 0 )
        {
                print_help();
                return( 1 );
        }
        else if( strcmp( argv[optind], "-" ) == 0 )
        {
                s = malloc( MAX_STRING );
                scanf( "%1024[^\n]s", s );
        }
        else
        {
                s = argv[optind];
                if( strlen( s ) > MAX_STRING )
                {
                        fprintf( stderr, _("Can't handle URLs of length over %d\n" ), MAX_STRING );
                        return( 1 );
                }
        }
        
        printf( _("Initializing download: %s\n"), s );
        if( do_search )
        {
                search = malloc( sizeof( search_t ) * ( conf->search_amount + 1 ) );
                memset( search, 0, sizeof( search_t ) * ( conf->search_amount + 1 ) );
                search[0].conf = conf;
                if( conf->verbose )
                        printf( _("Doing search...\n") );
                i = search_makelist( search, s );
                if( i < 0 )
                {
                        fprintf( stderr, _("File not found\n" ) );
                        return( 1 );
                }
                if( conf->verbose )
                        printf( _("Testing speeds, this can take a while...\n") );
                j = search_getspeeds( search, i );
                search_sortlist( search, i );
                if( conf->verbose )
                {
                        printf( _("%i usable servers found, will use these URLs:\n"), j );
                        j = min( j, conf->search_top );
                        printf( "%-60s %15s\n", "URL", "Speed" );
                        for( i = 0; i < j; i ++ )
                                printf( "%-70.70s %5i\n", search[i].url, search[i].speed );
                        printf( "\n" );
                }
                axel = axel_new( conf, j, search );
                free( search );
                if( axel->ready == -1 )
                {
                        print_messages( axel );
                        axel_close( axel );
                        return( 1 );
                }
        }
        else if( argc - optind == 1 )
        {
                axel = axel_new( conf, 0, s );
                if( axel->ready == -1 )
                {
                        print_messages( axel );
                        axel_close( axel );
                        return( 1 );
                }
        }
        else
        {
                search = malloc( sizeof( search_t ) * ( argc - optind ) );
                memset( search, 0, sizeof( search_t ) * ( argc - optind ) );
                for( i = 0; i < ( argc - optind ); i ++ )
                        strncpy( search[i].url, argv[optind+i], MAX_STRING );
                axel = axel_new( conf, argc - optind, search );
                free( search );
                if( axel->ready == -1 )
                {
                        print_messages( axel );
                        axel_close( axel );
                        return( 1 );
                }
        }
        print_messages( axel );
        if( s != argv[optind] )
        {
                free( s );
        }
        
        if( *fn )
        {
                struct stat buf;
                
                if( stat( fn, &buf ) == 0 )
                {
                        if( S_ISDIR( buf.st_mode ) )
                        {
                                strncat( fn, "/", MAX_STRING );
                                strncat( fn, axel->filename, MAX_STRING );
                        }
                }
                sprintf( string, "%s.st", fn );
                if( access( fn, F_OK ) == 0 ) if( access( string, F_OK ) != 0 )
                {
                        fprintf( stderr, _("No state file, cannot resume!\n") );
                        return( 1 );
                }
                if( access( string, F_OK ) == 0 ) if( access( fn, F_OK ) != 0 )
                {
                        printf( _("State file found, but no downloaded data. Starting from scratch.\n" ) );
                        unlink( string );
                }
                strcpy( axel->filename, fn );
        }
        else
        {
                /* Local file existence check                                   */
                i = 0;
                s = axel->filename + strlen( axel->filename );
                while( 1 )
                {
                        sprintf( string, "%s.st", axel->filename );
                        if( access( axel->filename, F_OK ) == 0 )
                        {
                                if( axel->conn[0].supported )
                                {
                                        if( access( string, F_OK ) == 0 )
                                                break;
                                }
                        }
                        else
                        {
                                if( access( string, F_OK ) )
                                        break;
                        }
                        sprintf( s, ".%i", i );
                        i ++;
                }
        }
        
        if( !axel_open( axel ) )
        {
                print_messages( axel );
                return( 1 );
        }
        print_messages( axel );
        axel_start( axel );
        print_messages( axel );

        if( conf->alternate_output )
        {
                putchar('\n');
        } 
        else
        {
                if( axel->bytes_done > 0 )      /* Print first dots if resuming */
                {
                        putchar( '\n' );
                        print_commas( axel->bytes_done );
                }
        }
        axel->start_byte = axel->bytes_done;
        
        /* Install save_state signal handler for resuming support       */
        signal( SIGINT, stop );
        signal( SIGTERM, stop );
        
        while( !axel->ready && run )
        {
                long long int prev, done;
                
                prev = axel->bytes_done;
                axel_do( axel );
                
                if( conf->alternate_output )
                {                       
                        if( !axel->message && prev != axel->bytes_done )
                                print_alternate_output( axel );
                }
                else
                {
                        /* The infamous wget-like 'interface'.. ;)              */
                        done = ( axel->bytes_done / 1024 ) - ( prev / 1024 );
                        if( done && conf->verbose > -1 )
                        {
                                for( i = 0; i < done; i ++ )
                                {
                                        i += ( prev / 1024 );
                                        if( ( i % 50 ) == 0 )
                                        {
                                                if( prev >= 1024 )
                                                        printf( "  [%6.1fKB/s]", (double) axel->bytes_per_second / 1024 );
                                                if( axel->size < 10240000 )
                                                        printf( "\n[%3lld%%]  ", min( 100, 102400 * i / axel->size ) );
                                                else
                                                        printf( "\n[%3lld%%]  ", min( 100, i / ( axel->size / 102400 ) ) );
                                        }
                                        else if( ( i % 10 ) == 0 )
                                        {
                                                putchar( ' ' );
                                        }
                                        putchar( '.' );
                                        i -= ( prev / 1024 );
                                }
                                fflush( stdout );
                        }
                }
                
                if( axel->message )
                {
                        if(conf->alternate_output==1)
                        {
                                /* clreol-simulation */
                                putchar( '\r' );
                                for( i = 0; i < 79; i++ ) /* linewidth known? */
                                        putchar( ' ' );
                                putchar( '\r' );
                        }
                        else
                        {
                                putchar( '\n' );
                        }
                        print_messages( axel );
                        if( !axel->ready )
                        {
                                if(conf->alternate_output!=1)
                                        print_commas( axel->bytes_done );
                                else
                                        print_alternate_output(axel);
                        }
                }
                else if( axel->ready )
                {
                        putchar( '\n' );
                }
        }
        
        strcpy( string + MAX_STRING / 2,
                size_human( axel->bytes_done - axel->start_byte ) );
        
        printf( _("\nDownloaded %s in %s. (%.2f KB/s)\n"),
                string + MAX_STRING / 2,
                time_human( gettime() - axel->start_time ),
                (double) axel->bytes_per_second / 1024 );
        
        i = axel->ready ? 0 : 2;
        
        axel_close( axel );
        
        return( i );
}

/* SIGINT/SIGTERM handler                                               */
void stop( int signal )
{
        run = 0;
}

/* Convert a number of bytes to a human-readable form                   */
char *size_human( long long int value )
{
        if( value == 1 )
                sprintf( string, _("%lld byte"), value );
        else if( value < 1024 )
                sprintf( string, _("%lld bytes"), value );
        else if( value < 10485760 )
                sprintf( string, _("%.1f kilobytes"), (float) value / 1024 );
        else
                sprintf( string, _("%.1f megabytes"), (float) value / 1048576 );
        
        return( string );
}

/* Convert a number of seconds to a human-readable form                 */
char *time_human( int value )
{
        if( value == 1 )
                sprintf( string, _("%i second"), value );
        else if( value < 60 )
                sprintf( string, _("%i seconds"), value );
        else if( value < 3600 )
                sprintf( string, _("%i:%02i seconds"), value / 60, value % 60 );
        else
                sprintf( string, _("%i:%02i:%02i seconds"), value / 3600, ( value / 60 ) % 60, value % 60 );
        
        return( string );
}

/* Part of the infamous wget-like interface. Just put it in a function
        because I need it quite often..                                 */
void print_commas( long long int bytes_done )
{
        int i, j;
        
        printf( "       " );
        j = ( bytes_done / 1024 ) % 50;
        if( j == 0 ) j = 50;
        for( i = 0; i < j; i ++ )
        {
                if( ( i % 10 ) == 0 )
                        putchar( ' ' );
                putchar( ',' );
        }
        fflush( stdout );
}

static void print_alternate_output(axel_t *axel) 
{
        long long int done=axel->bytes_done;
        long long int total=axel->size;
        int i,j=0;
        double now = gettime();
        
        printf("\r[%3ld%%] [", min(100,(long)(done*100./total+.5) ) );
                
        for(i=0;i<axel->conf->num_connections;i++)
        {
                for(;j<((double)axel->conn[i].currentbyte/(total+1)*50)-1;j++)
                        putchar('.');

                if(axel->conn[i].currentbyte<axel->conn[i].lastbyte)
                {
                        if(now <= axel->conn[i].last_transfer + axel->conf->connection_timeout/2 )
                                putchar(i+'0');
                        else
                                putchar('#');
                } else 
                        putchar('.');

                j++;
                
                for(;j<((double)axel->conn[i].lastbyte/(total+1)*50);j++)
                        putchar(' ');
        }
        
        if(axel->bytes_per_second > 1048576)
                printf( "] [%6.1fMB/s]", (double) axel->bytes_per_second / 1024*1024 );
        else if(axel->bytes_per_second > 1024)
                printf( "] [%6.1fKB/s]", (double) axel->bytes_per_second / 1024 );
        else
                printf( "] [%6.1fB/s]", (double) axel->bytes_per_second );
        
        if(done<total)
        {
                int seconds,minutes,hours,days;
                seconds=axel->finish_time - now;
                minutes=seconds/60;seconds-=minutes*60;
                hours=minutes/60;minutes-=hours*60;
                days=hours/24;hours-=days*24;
                if(days)
                        printf(" [%2dd%2d]",days,hours);
                else if(hours)
                        printf(" [%2dh%02d]",hours,minutes);
                else
                        printf(" [%02d:%02d]",minutes,seconds);
        }
        
        fflush( stdout );
}

void print_help()
{
#ifdef NOGETOPTLONG
        printf( _("Usage: axel [options] url1 [url2] [url...]\n"
                "\n"
                "-s x\tSpecify maximum speed (bytes per second)\n"
                "-n x\tSpecify maximum number of connections\n"
                "-o f\tSpecify local output file\n"
                "-S [x]\tSearch for mirrors and download from x servers\n"
                "-H x\tAdd header string\n"
                "-N\tJust don't use any proxy server\n"
                "-q\tLeave stdout alone\n"
                "-v\tMore status information\n"
                "-a\tAlternate progress indicator\n"
                "-h\tThis information\n"
                "-V\tVersion information\n"
                "\n"
                "Visit http://axel.alioth.debian.org/ to report bugs\n") );
#else
        printf( _("Usage: axel [options] url1 [url2] [url...]\n"
                "\n"
                "--max-speed=x\t\t-s x\tSpecify maximum speed (bytes per second)\n"
                "--num-connections=x\t-n x\tSpecify maximum number of connections\n"
                "--output=f\t\t-o f\tSpecify local output file\n"
                "--search[=x]\t\t-S [x]\tSearch for mirrors and download from x servers\n"
                "--header=x\t\t-H x\tAdd header string\n"
                "--no-proxy\t\t-N\tJust don't use any proxy server\n"
                "--quiet\t\t\t-q\tLeave stdout alone\n"
                "--verbose\t\t-v\tMore status information\n"
                "--alternate\t\t-a\tAlternate progress indicator\n"
                "--help\t\t\t-h\tThis information\n"
                "--version\t\t-V\tVersion information\n"
                "\n"
                "Visit http://axel.alioth.debian.org/ to report bugs\n") );
#endif
}

void print_version()
{
        printf( _("Axel version %s (%s)\n"), AXEL_VERSION_STRING, ARCH );
        printf( "\nCopyright 2001-2002 Wilmer van der Gaast.\n" );
}

/* Print any message in the axel structure                              */
void print_messages( axel_t *axel )
{
        message_t *m;
        
        while( axel->message )
        {
                printf( "%s\n", axel->message->text );
                m = axel->message;
                axel->message = axel->message->next;
                free( m );
        }
}
1	/********************************************************************\
2	* Axel -- A lighter download accelerator for Linux and other Unices. *
3	* *
4	* Copyright 2001 Wilmer van der Gaast *
5	\********************************************************************/
6
7	/* Text interface */
8
9	/*
10	This program is free software; you can redistribute it and/or modify
11	it under the terms of the GNU General Public License as published by
12	the Free Software Foundation; either version 2 of the License, or
13	(at your option) any later version.
14
15	This program is distributed in the hope that it will be useful,
16	but WITHOUT ANY WARRANTY; without even the implied warranty of
17	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18	GNU General Public License for more details.
19
20	You should have received a copy of the GNU General Public License with
21	the Debian GNU/Linux distribution in file /usr/doc/copyright/GPL;
22	if not, write to the Free Software Foundation, Inc., 59 Temple Place,
23	Suite 330, Boston, MA 02111-1307 USA
24	*/
25
26	#include "axel.h"
27
28	static void stop( int signal );
29	static char *size_human( long long int value );
30	static char *time_human( int value );
31	static void print_commas( long long int bytes_done );
32	static void print_alternate_output( axel_t *axel );
33	static void print_help();
34	static void print_version();
35	static void print_messages( axel_t *axel );
36
37	int run = 1;
38
39	#ifdef NOGETOPTLONG
40	#define getopt_long( a, b, c, d, e ) getopt( a, b, c )
41	#else
42	static struct option axel_options[] =
43	{
44	/* name has_arg flag val */
45	{ "max-speed", 1, NULL, 's' },
46	{ "num-connections", 1, NULL, 'n' },
47	{ "output", 1, NULL, 'o' },
48	{ "search", 2, NULL, 'S' },
49	{ "no-proxy", 0, NULL, 'N' },
50	{ "quiet", 0, NULL, 'q' },
51	{ "verbose", 0, NULL, 'v' },
52	{ "help", 0, NULL, 'h' },
53	{ "version", 0, NULL, 'V' },
54	{ "alternate", 0, NULL, 'a' },
55	{ "header", 1, NULL, 'H' },
56	{ NULL, 0, NULL, 0 }
57	};
58	#endif
59
60	/* For returning string values from functions */
61	static char string[MAX_STRING];
62
63
64	int main( int argc, char *argv[] )
65	{
66	char fn[MAX_STRING] = "";
67	int do_search = 0;
68	search_t *search;
69	conf_t conf[1];
70	axel_t *axel;
71	int i, j, cur_head = 0;
72	char *s;
73
74	#ifdef I18N
75	setlocale( LC_ALL, "" );
76	bindtextdomain( PACKAGE, LOCALE );
77	textdomain( PACKAGE );
78	#endif
79
80	if( !conf_init( conf ) )
81	{
82	return( 1 );
83	}
84
85	opterr = 0;
86
87	j = -1;
88	while( 1 )
89	{
90	int option;
91
92	option = getopt_long( argc, argv, "s:n:o:S::NqvhVaH:", axel_options, NULL );
93	if( option == -1 )
94	break;
95
96	switch( option )
97	{
98	case 'H':
99	strncpy( conf->add_header[cur_head++], optarg, MAX_STRING );
100	break;
101	case 's':
102	if( !sscanf( optarg, "%i", &conf->max_speed ) )
103	{
104	print_help();
105	return( 1 );
106	}
107	break;
108	case 'n':
109	if( !sscanf( optarg, "%i", &conf->num_connections ) )
110	{
111	print_help();
112	return( 1 );
113	}
114	break;
115	case 'o':
116	strncpy( fn, optarg, MAX_STRING );
117	break;
118	case 'S':
119	do_search = 1;
120	if( optarg != NULL )
121	if( !sscanf( optarg, "%i", &conf->search_top ) )
122	{
123	print_help();
124	return( 1 );
125	}
126	break;
127	case 'a':
128	conf->alternate_output = 1;
129	break;
130	case 'N':
131	*conf->http_proxy = 0;
132	break;
133	case 'h':
134	print_help();
135	return( 0 );
136	case 'v':
137	if( j == -1 )
138	j = 1;
139	else
140	j ++;
141	break;
142	case 'V':
143	print_version();
144	return( 0 );
145	case 'q':
146	close( 1 );
147	conf->verbose = -1;
148	if( open( "/dev/null", O_WRONLY ) != 1 )
149	{
150	fprintf( stderr, _("Can't redirect stdout to /dev/null.\n") );
151	return( 1 );
152	}
153	break;
154	default:
155	print_help();
156	return( 1 );
157	}
158	}
159	conf->add_header_count = cur_head;
160	if( j > -1 )
161	conf->verbose = j;
162
163	if( argc - optind == 0 )
164	{
165	print_help();
166	return( 1 );
167	}
168	else if( strcmp( argv[optind], "-" ) == 0 )
169	{
170	s = malloc( MAX_STRING );
171	scanf( "%1024[^\n]s", s );
172	}
173	else
174	{
175	s = argv[optind];
176	if( strlen( s ) > MAX_STRING )
177	{
178	fprintf( stderr, _("Can't handle URLs of length over %d\n" ), MAX_STRING );
179	return( 1 );
180	}
181	}
182
183	printf( _("Initializing download: %s\n"), s );
184	if( do_search )
185	{
186	search = malloc( sizeof( search_t ) * ( conf->search_amount + 1 ) );
187	memset( search, 0, sizeof( search_t ) * ( conf->search_amount + 1 ) );
188	search[0].conf = conf;
189	if( conf->verbose )
190	printf( _("Doing search...\n") );
191	i = search_makelist( search, s );
192	if( i < 0 )
193	{
194	fprintf( stderr, _("File not found\n" ) );
195	return( 1 );
196	}
197	if( conf->verbose )
198	printf( _("Testing speeds, this can take a while...\n") );
199	j = search_getspeeds( search, i );
200	search_sortlist( search, i );
201	if( conf->verbose )
202	{
203	printf( _("%i usable servers found, will use these URLs:\n"), j );
204	j = min( j, conf->search_top );
205	printf( "%-60s %15s\n", "URL", "Speed" );
206	for( i = 0; i < j; i ++ )
207	printf( "%-70.70s %5i\n", search[i].url, search[i].speed );
208	printf( "\n" );
209	}
210	axel = axel_new( conf, j, search );
211	free( search );
212	if( axel->ready == -1 )
213	{
214	print_messages( axel );
215	axel_close( axel );
216	return( 1 );
217	}
218	}
219	else if( argc - optind == 1 )
220	{
221	axel = axel_new( conf, 0, s );
222	if( axel->ready == -1 )
223	{
224	print_messages( axel );
225	axel_close( axel );
226	return( 1 );
227	}
228	}
229	else
230	{
231	search = malloc( sizeof( search_t ) * ( argc - optind ) );
232	memset( search, 0, sizeof( search_t ) * ( argc - optind ) );
233	for( i = 0; i < ( argc - optind ); i ++ )
234	strncpy( search[i].url, argv[optind+i], MAX_STRING );
235	axel = axel_new( conf, argc - optind, search );
236	free( search );
237	if( axel->ready == -1 )
238	{
239	print_messages( axel );
240	axel_close( axel );
241	return( 1 );
242	}
243	}
244	print_messages( axel );
245	if( s != argv[optind] )
246	{
247	free( s );
248	}
249
250	if( *fn )
251	{
252	struct stat buf;
253
254	if( stat( fn, &buf ) == 0 )
255	{
256	if( S_ISDIR( buf.st_mode ) )
257	{
258	strncat( fn, "/", MAX_STRING );
259	strncat( fn, axel->filename, MAX_STRING );
260	}
261	}
262	sprintf( string, "%s.st", fn );
263	if( access( fn, F_OK ) == 0 ) if( access( string, F_OK ) != 0 )
264	{
265	fprintf( stderr, _("No state file, cannot resume!\n") );
266	return( 1 );
267	}
268	if( access( string, F_OK ) == 0 ) if( access( fn, F_OK ) != 0 )
269	{
270	printf( _("State file found, but no downloaded data. Starting from scratch.\n" ) );
271	unlink( string );
272	}
273	strcpy( axel->filename, fn );
274	}
275	else
276	{
277	/* Local file existence check */
278	i = 0;
279	s = axel->filename + strlen( axel->filename );
280	while( 1 )
281	{
282	sprintf( string, "%s.st", axel->filename );
283	if( access( axel->filename, F_OK ) == 0 )
284	{
285	if( axel->conn[0].supported )
286	{
287	if( access( string, F_OK ) == 0 )
288	break;
289	}
290	}
291	else
292	{
293	if( access( string, F_OK ) )
294	break;
295	}
296	sprintf( s, ".%i", i );
297	i ++;
298	}
299	}
300
301	if( !axel_open( axel ) )
302	{
303	print_messages( axel );
304	return( 1 );
305	}
306	print_messages( axel );
307	axel_start( axel );
308	print_messages( axel );
309
310	if( conf->alternate_output )
311	{
312	putchar('\n');
313	}
314	else
315	{
316	if( axel->bytes_done > 0 ) /* Print first dots if resuming */
317	{
318	putchar( '\n' );
319	print_commas( axel->bytes_done );
320	}
321	}
322	axel->start_byte = axel->bytes_done;
323
324	/* Install save_state signal handler for resuming support */
325	signal( SIGINT, stop );
326	signal( SIGTERM, stop );
327
328	while( !axel->ready && run )
329	{
330	long long int prev, done;
331
332	prev = axel->bytes_done;
333	axel_do( axel );
334
335	if( conf->alternate_output )
336	{
337	if( !axel->message && prev != axel->bytes_done )
338	print_alternate_output( axel );
339	}
340	else
341	{
342	/* The infamous wget-like 'interface'.. ;) */
343	done = ( axel->bytes_done / 1024 ) - ( prev / 1024 );
344	if( done && conf->verbose > -1 )
345	{
346	for( i = 0; i < done; i ++ )
347	{
348	i += ( prev / 1024 );
349	if( ( i % 50 ) == 0 )
350	{
351	if( prev >= 1024 )
352	printf( " [%6.1fKB/s]", (double) axel->bytes_per_second / 1024 );
353	if( axel->size < 10240000 )
354	printf( "\n[%3lld%%] ", min( 100, 102400 * i / axel->size ) );
355	else
356	printf( "\n[%3lld%%] ", min( 100, i / ( axel->size / 102400 ) ) );
357	}
358	else if( ( i % 10 ) == 0 )
359	{
360	putchar( ' ' );
361	}
362	putchar( '.' );
363	i -= ( prev / 1024 );
364	}
365	fflush( stdout );
366	}
367	}
368
369	if( axel->message )
370	{
371	if(conf->alternate_output==1)
372	{
373	/* clreol-simulation */
374	putchar( '\r' );
375	for( i = 0; i < 79; i++ ) /* linewidth known? */
376	putchar( ' ' );
377	putchar( '\r' );
378	}
379	else
380	{
381	putchar( '\n' );
382	}
383	print_messages( axel );
384	if( !axel->ready )
385	{
386	if(conf->alternate_output!=1)
387	print_commas( axel->bytes_done );
388	else
389	print_alternate_output(axel);
390	}
391	}
392	else if( axel->ready )
393	{
394	putchar( '\n' );
395	}
396	}
397
398	strcpy( string + MAX_STRING / 2,
399	size_human( axel->bytes_done - axel->start_byte ) );
400
401	printf( _("\nDownloaded %s in %s. (%.2f KB/s)\n"),
402	string + MAX_STRING / 2,
403	time_human( gettime() - axel->start_time ),
404	(double) axel->bytes_per_second / 1024 );
405
406	i = axel->ready ? 0 : 2;
407
408	axel_close( axel );
409
410	return( i );
411	}
412
413	/* SIGINT/SIGTERM handler */
414	void stop( int signal )
415	{
416	run = 0;
417	}
418
419	/* Convert a number of bytes to a human-readable form */
420	char *size_human( long long int value )
421	{
422	if( value == 1 )
423	sprintf( string, _("%lld byte"), value );
424	else if( value < 1024 )
425	sprintf( string, _("%lld bytes"), value );
426	else if( value < 10485760 )
427	sprintf( string, _("%.1f kilobytes"), (float) value / 1024 );
428	else
429	sprintf( string, _("%.1f megabytes"), (float) value / 1048576 );
430
431	return( string );
432	}
433
434	/* Convert a number of seconds to a human-readable form */
435	char *time_human( int value )
436	{
437	if( value == 1 )
438	sprintf( string, _("%i second"), value );
439	else if( value < 60 )
440	sprintf( string, _("%i seconds"), value );
441	else if( value < 3600 )
442	sprintf( string, _("%i:%02i seconds"), value / 60, value % 60 );
443	else
444	sprintf( string, _("%i:%02i:%02i seconds"), value / 3600, ( value / 60 ) % 60, value % 60 );
445
446	return( string );
447	}
448
449	/* Part of the infamous wget-like interface. Just put it in a function
450	because I need it quite often.. */
451	void print_commas( long long int bytes_done )
452	{
453	int i, j;
454
455	printf( " " );
456	j = ( bytes_done / 1024 ) % 50;
457	if( j == 0 ) j = 50;
458	for( i = 0; i < j; i ++ )
459	{
460	if( ( i % 10 ) == 0 )
461	putchar( ' ' );
462	putchar( ',' );
463	}
464	fflush( stdout );
465	}
466
467	static void print_alternate_output(axel_t *axel)
468	{
469	long long int done=axel->bytes_done;
470	long long int total=axel->size;
471	int i,j=0;
472	double now = gettime();
473
474	printf("\r[%3ld%%] [", min(100,(long)(done*100./total+.5) ) );
475
476	for(i=0;i<axel->conf->num_connections;i++)
477	{
478	for(;j<((double)axel->conn[i].currentbyte/(total+1)*50)-1;j++)
479	putchar('.');
480
481	if(axel->conn[i].currentbyte<axel->conn[i].lastbyte)
482	{
483	if(now <= axel->conn[i].last_transfer + axel->conf->connection_timeout/2 )
484	putchar(i+'0');
485	else
486	putchar('#');
487	} else
488	putchar('.');
489
490	j++;
491
492	for(;j<((double)axel->conn[i].lastbyte/(total+1)*50);j++)
493	putchar(' ');
494	}
495
496	if(axel->bytes_per_second > 1048576)
497	printf( "] [%6.1fMB/s]", (double) axel->bytes_per_second / 1024*1024 );
498	else if(axel->bytes_per_second > 1024)
499	printf( "] [%6.1fKB/s]", (double) axel->bytes_per_second / 1024 );
500	else
501	printf( "] [%6.1fB/s]", (double) axel->bytes_per_second );
502
503	if(done<total)
504	{
505	int seconds,minutes,hours,days;
506	seconds=axel->finish_time - now;
507	minutes=seconds/60;seconds-=minutes*60;
508	hours=minutes/60;minutes-=hours*60;
509	days=hours/24;hours-=days*24;
510	if(days)
511	printf(" [%2dd%2d]",days,hours);
512	else if(hours)
513	printf(" [%2dh%02d]",hours,minutes);
514	else
515	printf(" [%02d:%02d]",minutes,seconds);
516	}
517
518	fflush( stdout );
519	}
520
521	void print_help()
522	{
523	#ifdef NOGETOPTLONG
524	printf( _("Usage: axel [options] url1 [url2] [url...]\n"
525	"\n"
526	"-s x\tSpecify maximum speed (bytes per second)\n"
527	"-n x\tSpecify maximum number of connections\n"
528	"-o f\tSpecify local output file\n"
529	"-S [x]\tSearch for mirrors and download from x servers\n"
530	"-H x\tAdd header string\n"
531	"-N\tJust don't use any proxy server\n"
532	"-q\tLeave stdout alone\n"
533	"-v\tMore status information\n"
534	"-a\tAlternate progress indicator\n"
535	"-h\tThis information\n"
536	"-V\tVersion information\n"
537	"\n"
538	"Visit http://axel.alioth.debian.org/ to report bugs\n") );
539	#else
540	printf( _("Usage: axel [options] url1 [url2] [url...]\n"
541	"\n"
542	"--max-speed=x\t\t-s x\tSpecify maximum speed (bytes per second)\n"
543	"--num-connections=x\t-n x\tSpecify maximum number of connections\n"
544	"--output=f\t\t-o f\tSpecify local output file\n"
545	"--search[=x]\t\t-S [x]\tSearch for mirrors and download from x servers\n"
546	"--header=x\t\t-H x\tAdd header string\n"
547	"--no-proxy\t\t-N\tJust don't use any proxy server\n"
548	"--quiet\t\t\t-q\tLeave stdout alone\n"
549	"--verbose\t\t-v\tMore status information\n"
550	"--alternate\t\t-a\tAlternate progress indicator\n"
551	"--help\t\t\t-h\tThis information\n"
552	"--version\t\t-V\tVersion information\n"
553	"\n"
554	"Visit http://axel.alioth.debian.org/ to report bugs\n") );
555	#endif
556	}
557
558	void print_version()
559	{
560	printf( _("Axel version %s (%s)\n"), AXEL_VERSION_STRING, ARCH );
561	printf( "\nCopyright 2001-2002 Wilmer van der Gaast.\n" );
562	}
563
564	/* Print any message in the axel structure */
565	void print_messages( axel_t *axel )
566	{
567	message_t *m;
568
569	while( axel->message )
570	{
571	printf( "%s\n", axel->message->text );
572	m = axel->message;
573	axel->message = axel->message->next;
574	free( m );
575	}
576	}