Access Counter Error : ", stdout ) ; fputs( x, stdout ) ; fputs("
\n![](\"http://www-cr.scphys.kyoto-u.ac.jp/buttons/go_home_btn.gif\")
\nBack to Home Page\n\n", stdout ) ;
}
/* Data file name to record access number */
#define DIR_COUNT "../../data"
#define FILE_COUNT "count.dat"
#define SOCKET_COUNT "countsrv.soc"
#define COUNT_SERV_PROGRAM "./countsrv &"
/* Max file size = 4KB, max records = 256 */
#define DATA_NUM 256
#define MAX_WORD_LEN 15
#define REFERENCE_LEN 95
#define REMOTE_LEN 63
#define DATA_BUF_SIZE 180
#define DATA_LEN_MIN 45
/* Find "keyword" from data file, return the number, and add 1 */
/* If "keyword" doesn't exist, return 0 and record "1" */
unsigned long guest_count( char *keyword )
{
unsigned long count = 0L ;
int wl, soc_id ;
char buf[DATA_BUF_SIZE] ;
char *env_ref, *env_remote ;
struct sockaddr socket_name ;
/* "keyword" length <= MAX_WORD_LEN */
strncpy( buf, keyword, MAX_WORD_LEN ) ;
buf[MAX_WORD_LEN] = '\0';
strcat( buf," ") ;
wl = strlen( buf ) ;
/* Remote host */
if( (env_remote = getenv("REMOTE_HOST"))==NULL )
env_remote = "localhost";
strncat( buf, env_remote, REMOTE_LEN ) ;
buf[wl + REMOTE_LEN] = '\0';
wl = strlen( buf ) ;
/* Referred from ? */
if( (env_ref = getenv("HTTP_REFERER"))!=NULL )
{ strcat( buf," ") ;
strncat( buf, env_ref, REFERENCE_LEN ) ;
buf[wl + 1 + REFERENCE_LEN] = '\0';
}
wl = strlen( buf ) + 1 ;
if( (soc_id = socket(PF_UNIX, SOCK_STREAM, 0)) < 0 )
{ Err("socket");
return 0L ;
}
bzero( (char *)&socket_name, sizeof( struct sockaddr ) ) ;
socket_name.sa_family = PF_UNIX ;
strcpy( socket_name.sa_data, SOCKET_COUNT ) ;
if( connect( soc_id, &socket_name, sizeof( struct sockaddr ) )!= 0 )
{ system( COUNT_SERV_PROGRAM ) ;
sleep( 1 ) ;
if( connect( soc_id, &socket_name, sizeof( struct sockaddr ) )!= 0 )
{ Err("connect") ;
close( soc_id ) ;
return 0L ;
}
}
write( soc_id, buf, wl ) ;
wl = read( soc_id, &count, sizeof(u_long) ) ;
close( soc_id ) ;
if( wl == sizeof(u_long) )
return count ;
else
return 0L ;
}
#define XBMP_HIGHT 16
/* Output bitmap image of number 'n' */
void xbmp_num( unsigned long n )
{
static unsigned char bmp_fig[10][XBMP_HIGHT] = {
{0xff, 0xff, 0xff, 0xc3, 0x99, 0x99, 0x99, 0x99, 0x99, 0x99, 0x99, 0x99, 0xc3, 0xff, 0xff, 0xff}, /* 0 */
{0xff, 0xff, 0xff, 0xcf, 0xc7, 0xcf, 0xcf, 0xcf, 0xcf, 0xcf, 0xcf, 0xcf, 0xcf, 0xff, 0xff, 0xff}, /* 1 */
{0xff, 0xff, 0xff, 0xc3, 0x99, 0x9f, 0x9f, 0xcf, 0xe7, 0xf3, 0xf9, 0xf9, 0x81, 0xff, 0xff, 0xff}, /* 2 */
{0xff, 0xff, 0xff, 0xc3, 0x99, 0x9f, 0x9f, 0xc7, 0x9f, 0x9f, 0x9f, 0x99, 0xc3, 0xff, 0xff, 0xff}, /* 3 */
{0xff, 0xff, 0xff, 0xcf, 0xcf, 0xc7, 0xc7, 0xcb, 0xcb, 0xcd, 0x81, 0xcf, 0x87, 0xff, 0xff, 0xff}, /* 4 */
{0xff, 0xff, 0xff, 0x81, 0xf9, 0xf9, 0xf9, 0xc1, 0x9f, 0x9f, 0x9f, 0x99, 0xc3, 0xff, 0xff, 0xff}, /* 5 */
{0xff, 0xff, 0xff, 0xc7, 0xf3, 0xf9, 0xf9, 0xc1, 0x99, 0x99, 0x99, 0x99, 0xc3, 0xff, 0xff, 0xff}, /* 6 */
{0xff, 0xff, 0xff, 0x81, 0x99, 0x9f, 0x9f, 0xcf, 0xcf, 0xe7, 0xe7, 0xf3, 0xf3, 0xff, 0xff, 0xff}, /* 7 */
{0xff, 0xff, 0xff, 0xc3, 0x99, 0x99, 0x99, 0xc3, 0x99, 0x99, 0x99, 0x99, 0xc3, 0xff, 0xff, 0xff}, /* 8 */
{0xff, 0xff, 0xff, 0xc3, 0x99, 0x99, 0x99, 0x99, 0x83, 0x9f, 0x9f, 0xcf, 0xe3, 0xff, 0xff, 0xff} /* 9 */
} ;
char str_fig[16] ;
int digit, i, j ;
sprintf( str_fig,"%lu", n ) ;
digit = strlen( str_fig ) ;
/* Output Header */
fputs("Content-type: image/x-xbitmap\n\n", stdout ) ;
fprintf( stdout,"#define count_width %d\n", digit*8 ) ;
fprintf( stdout,"#define count_height %d\n", XBMP_HIGHT ) ;
/* Output bitmap */
fputs("static char count_bits[] = {\n", stdout ) ;
for( j=0 ; j < XBMP_HIGHT-1 ; j++ )
{ for( i=0 ; iAccess counter data (count.dat)
\n", stdout ) ; fputs("\n", stdout ) ; fputs("\n", stdout ) ;
if( (f = fopen( FILE_COUNT,"rt"))== NULL )
{ fputs("