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