tracker/readraw/readbad.c

/*
 * include needed system headers
 */
#include <stdio.h>       /* include standard i/o library */
#include <stdlib.h>      /* include standard library */
#include <string.h>      /* include string library */
#include <unistd.h>      /* include unix standard library */
#include <sys/types.h>   /* */
#include <sys/stat.h>    /* */
#include <fcntl.h>       /* */
#include <errno.h>       /* error simbol definitions */
#include <time.h>        /* system time definitions */
#include <math.h>        /* math library */

void readbad_(unsigned short *bad_buf, int *error, int *fd)

{
    int nread;
    int i,j,ii,jj;
    unsigned short word;
    unsigned short skip;
    unsigned short bad_buf_temp[64];

    *error=0;

/*** read the buffer ***/
    nread=read(*fd, bad_buf_temp, 2*64);
    if( nread==0 ) {
        printf("readbad: Unexpected end of file %d at %d \n",*fd,nread);
        *error=1;
        return ;
    }
    if ( nread != 2*64) {
        printf("readbad: Error on reading: nread = %d \n",nread);
        *error=-1;
        return ; 
    }


/*** correct byte ***/ //endianess...
    for(i=0; i<64; i++) {
        word = bad_buf_temp[i];
        bad_buf_temp[i] = ( (word&0x00ff) << 8 ) | ( (word&0xff00) >> 8 );
    }


    for(i=0; i<64; i++) {

        word = bad_buf_temp[i];

        for(j=0; j<16; j++) {
            
            jj=15-j;
            ii=j+i*16;

            bad_buf[ii] = ( (word >> jj) & 0x0001 );


        }
    }
    

//    for( i=0; i<64; i++) printf("%i %x \n",i,bad_buf_temp[i]);//??? */

//    printf("\n");//??? */

//    for( i=0; i<1024; i++) printf("%i %i \n",i,bad_buf[i]);//??? */


//legge la parola di fine ladder... per saltarla...

/*** read the buffer ***/
    nread=read(*fd, &skip, 2);
    if( nread==0 ) {
        printf("readbad: Unexpected end of file %d at %d \n",*fd,nread);
        *error=1;
        return ;
    }
    if ( nread != 2) {
        printf("readbad: Error on reading: nread = %d \n",nread);
        *error=-1;
        return ; 
    }


//    for( i=0; i<64; i++) printf("%x \n",bad_buf[i]);//???


/*     *error=0; */

/* /\*** read the buffer ***\/ */
/*     nread=read(*fd, bad_buf, 2*64); */
/*     if( nread==0 ) { */
/*      printf("readbad: Unexpected end of file %d at %d \n",*fd,nread); */
/*      *error=1; */
/*      return ; */
/*     } */
/*     if ( nread != 2*64) { */
/*      printf("readbad: Error on reading: nread = %d \n",nread); */
/*      *error=-1; */
/*      return ;  */
/*     } */


/* /\*** correct byte ***\/ //endianess... */
/*     for(i=0; i<64; i++) { */
/*      word = bad_buf[i]; */
/*      bad_buf[i] = ( (word&0x00ff) << 8 ) | ( (word&0xff00) >> 8 ); */
/*     } */

/* //legge la parola di fine ladder... per saltarla... */

/* /\*** read the buffer ***\/ */
/*     nread=read(*fd, &skip, 2); */
/*     if( nread==0 ) { */
/*      printf("readbad: Unexpected end of file %d at %d \n",*fd,nread); */
/*      *error=1; */
/*      return ; */
/*     } */
/*     if ( nread != 2) { */
/*      printf("readbad: Error on reading: nread = %d \n",nread); */
/*      *error=-1; */
/*      return ;  */
/*     } */


/* //    for( i=0; i<64; i++) printf("%x \n",bad_buf[i]);//??? */

    return; 
}
1	kusanagi	1.1	/*
2			* include needed system headers
3			*/
4			#include <stdio.h> /* include standard i/o library */
5			#include <stdlib.h> /* include standard library */
6			#include <string.h> /* include string library */
7			#include <unistd.h> /* include unix standard library */
8			#include <sys/types.h> /* */
9			#include <sys/stat.h> /* */
10			#include <fcntl.h> /* */
11			#include <errno.h> /* error simbol definitions */
12			#include <time.h> /* system time definitions */
13			#include <math.h> /* math library */
14
15			void readbad_(unsigned short bad_buf, int error, int *fd)
16
17			{
18			int nread;
19			int i,j,ii,jj;
20			unsigned short word;
21			unsigned short skip;
22			unsigned short bad_buf_temp[64];
23
24			*error=0;
25
26			/* read the buffer */
27			nread=read(fd, bad_buf_temp, 264);
28			if( nread==0 ) {
29			printf("readbad: Unexpected end of file %d at %d \n",*fd,nread);
30			*error=1;
31			return ;
32			}
33			if ( nread != 2*64) {
34			printf("readbad: Error on reading: nread = %d \n",nread);
35			*error=-1;
36			return ;
37			}
38
39
40			/* correct byte */ //endianess...
41			for(i=0; i<64; i++) {
42			word = bad_buf_temp[i];
43			bad_buf_temp[i] = ( (word&0x00ff) << 8 ) \| ( (word&0xff00) >> 8 );
44			}
45
46
47
48			for(i=0; i<64; i++) {
49
50			word = bad_buf_temp[i];
51
52			for(j=0; j<16; j++) {
53
54			jj=15-j;
55			ii=j+i*16;
56
57			bad_buf[ii] = ( (word >> jj) & 0x0001 );
58
59
60
61
62			}
63			}
64
65
66			// for( i=0; i<64; i++) printf("%i %x \n",i,bad_buf_temp[i]);//??? */
67
68			// printf("\n");//??? */
69
70			// for( i=0; i<1024; i++) printf("%i %i \n",i,bad_buf[i]);//??? */
71
72
73
74
75
76
77
78
79
80
81
82
83			//legge la parola di fine ladder... per saltarla...
84
85			/* read the buffer */
86			nread=read(*fd, &skip, 2);
87			if( nread==0 ) {
88			printf("readbad: Unexpected end of file %d at %d \n",*fd,nread);
89			*error=1;
90			return ;
91			}
92			if ( nread != 2) {
93			printf("readbad: Error on reading: nread = %d \n",nread);
94			*error=-1;
95			return ;
96			}
97
98
99
100
101			// for( i=0; i<64; i++) printf("%x \n",bad_buf[i]);//???
102
103
104
105
106			/* error=0; /
107
108			/* /\* read the buffer \/ /
109			/* nread=read(fd, bad_buf, 264); */
110			/* if( nread==0 ) { */
111			/* printf("readbad: Unexpected end of file %d at %d \n",fd,nread); /
112			/* error=1; /
113			/* return ; */
114			/* } */
115			/* if ( nread != 264) { /
116			/* printf("readbad: Error on reading: nread = %d \n",nread); */
117			/* error=-1; /
118			/* return ; */
119			/* } */
120
121
122			/* /\* correct byte \/ //endianess... /
123			/* for(i=0; i<64; i++) { */
124			/* word = bad_buf[i]; */
125			/* bad_buf[i] = ( (word&0x00ff) << 8 ) \| ( (word&0xff00) >> 8 ); */
126			/* } */
127
128			/* //legge la parola di fine ladder... per saltarla... */
129
130			/* /\* read the buffer \/ /
131			/* nread=read(fd, &skip, 2); /
132			/* if( nread==0 ) { */
133			/* printf("readbad: Unexpected end of file %d at %d \n",fd,nread); /
134			/* error=1; /
135			/* return ; */
136			/* } */
137			/* if ( nread != 2) { */
138			/* printf("readbad: Error on reading: nread = %d \n",nread); */
139			/* error=-1; /
140			/* return ; */
141			/* } */
142
143
144
145
146			/* // for( i=0; i<64; i++) printf("%x \n",bad_buf[i]);//??? */
147
148			return;
149			}