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#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <stdint.h>
#include <unistd.h>
#include <sys/types.h>
#include <signal.h>
#include <getopt.h>
#include <sys/stat.h>
#include <ctype.h>
#include <fcntl.h>
#include "rabincarp.h"
int file_open( const char *fname )
{
int fd;
fd = open( fname, O_RDONLY );
if ( fd == -1 )
{
printf("Couldn open file %s\n", fname);
return -1;
}
return fd;
}
int file_read( int fd, char *buf, int size )
{
int ret;
if ( size < 1 )
return -1;
ret = (int)read( fd, buf, size );
return ret;
}
int file_seek( int fd, off_t pos )
{
off_t rc;
if (fd<1)
{
return -1;
}
rc = lseek( fd, pos, SEEK_SET );
if (rc == -1)
return -1;
return 0;
}
int file_close( int fd )
{
close( fd );
return 0;
}
typedef struct match_params
{
char *fname;
char *match_str;
int match_len;
int buf_size;
int verbose;
} match_params;
void helper( char *progname )
{
printf("Usage: %s [OPTS]\n\n"
" -f - input file\n"
" -m - match string\n"
//" -b - set buffer size to read\n"
" -v - more extra info in output\n"
"Version: 0.0.1 \n"
"\n"
, progname);
}
int main(int argc, char **argv)
{
int c;
int i;
int fd;
int text_len;
int ret;
char *text = NULL;
//search
rol_hash_isearch search;
//parametrs
match_params mp;
memset(&mp,0,sizeof(match_params));
while ( (c = getopt(argc, argv, "f:m:b:v")) != -1 )
{
switch(c)
{
case 'f':
mp.fname = optarg;
break;
case 'm':
mp.match_str = optarg;
mp.match_len = strlen(optarg);
break;
case 'b':
mp.buf_size = atoi(optarg);
break;
case 'v':
mp.verbose = 1;
break;
default:
helper( argv[0] );
exit(1);
}
}
if (argc<2)
{
helper(argv[0]);
return -1;
}
if (mp.fname == NULL)
{
printf("Set filename\n");
return -1;
}
if (mp.match_str == NULL)
{
printf("Set search string\n");
return -1;
}
fd = file_open( mp.fname );
if (fd<0)
{
printf("Couldnt open file %s\n", mp.fname);
return -1;
}
text_len = lseek(fd,0,SEEK_END);
lseek(fd, 0,SEEK_SET);
text = malloc(text_len);
//printf("Read %d bytes\n",read(fd,text,text_len));
ret = read(fd, text, text_len);
if (mp.verbose)
{
printf("Read %d bytes\n",ret);
}
rlsi_hash_init( &search, 10, 13);
while ((i = rlsi_hash_search(&search, mp.match_str, mp.match_len, text, text_len)) == 1)
{
//printf("Found smth %d\n",rlsi_hash_get(&search));
printf("%d\n",rlsi_hash_get(&search));
}
file_close( fd );
return 0;
}
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