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	/*
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	}