Example #1
0
// write the file (or pipe) to another file
static void _near ListSaveFile( void )
{
	int i, nFH, nMode;
	long lTemp;
	POPWINDOWPTR wn;
	TCHAR szBuffer[ MAXLISTLINE+1 ];
	
	// disable ^C / ^BREAK handling
	HoldSignals();
	
	wn = wOpen( 2, 1, 4, GetScrCols() - 2, nInverse, LIST_SAVE_TITLE, NULL );
	wn->nAttrib = nNormal;
	wClear();
	wWriteListStr( 0, 1, wn, LIST_QUERY_SAVE );
	egets( szBuffer, MAXFILENAME, EDIT_DATA | EDIT_BIOS_KEY );
	
	if ( szBuffer[0] ) {
		
		// save start position
		lTemp = LFile.lViewPtr;
		
		nMode = _O_BINARY;
		
		if (( nFH = _sopen( szBuffer, ( nMode | _O_WRONLY | _O_CREAT | _O_TRUNC ), _SH_DENYNO, _S_IWRITE | _S_IREAD )) >= 0 ) {
			
			// reset to beginning of file

				ListSetCurrent( 0L );
			
			do {
				
				for ( i = 0; ( i < MAXLISTLINE ); i++ ) {
					
					// don't call GetNextChar unless absolutely necessary
					if ( LFile.lpCurrent == LFile.lpEOF )
						break;

					szBuffer[i] = (TCHAR)GetNextChar();
				}

				szBuffer[i] = _TEXT('\0');
				
			} while (( i > 0 ) && ( wwrite( nFH, szBuffer, i ) > 0 ));
			
			_close( nFH );
			
			// restore start position
			LFile.lViewPtr = lTemp;
			ListSetCurrent( LFile.lViewPtr );
			
		} else
			honk();
	}
	
	wRemove( wn );
	
	// enable ^C / ^BREAK handling
	EnableSignals();
}
Example #2
0
File: lzf.c Project: malaise/c
static int
compress_fd (int from, int to)
{
  ssize_t us, cs, len;
  u8 buf1[MAX_BLOCKSIZE + MAX_HDR_SIZE + 16];
  u8 buf2[MAX_BLOCKSIZE + MAX_HDR_SIZE + 16];
  u8 *header;

  nr_read = nr_written = 0;
  while ((us = rread (from, &buf1[MAX_HDR_SIZE], blocksize)) > 0)
    {
      cs = lzf_compress (&buf1[MAX_HDR_SIZE], us, &buf2[MAX_HDR_SIZE], us > 4 ? us - 4 : us);
      if (cs)
        {
          header = &buf2[MAX_HDR_SIZE - TYPE1_HDR_SIZE];
          header[0] = 'Z';
          header[1] = 'V';
          header[2] = 1;
          header[3] = cs >> 8;
          header[4] = cs & 0xff;
          header[5] = us >> 8;
          header[6] = us & 0xff;
          len = cs + TYPE1_HDR_SIZE;
        }
      else
        {                       // write uncompressed
          header = &buf1[MAX_HDR_SIZE - TYPE0_HDR_SIZE];
          header[0] = 'Z';
          header[1] = 'V';
          header[2] = 0;
          header[3] = us >> 8;
          header[4] = us & 0xff;
          len = us + TYPE0_HDR_SIZE;
        }
      if (raw)
        {
          header = &buf2[MAX_HDR_SIZE]; 
          len = cs;
        }
      if (wwrite (to, header, len) == -1)
        return -1;
    }
/*
void
testbitmask(void) {

    setmaskbit(31); setmaskbit(95); setmaskbit(159);setmaskbit(223);
    setmaskbit(287); setmaskbit(351); setmaskbit(415);setmaskbit(479);
    setmaskbit(90); setmaskbit(154);setmaskbit(218); setmaskbit(282);
    setmaskbit(346); setmaskbit(347); setmaskbit(348); setmaskbit(349);
    setmaskbit(350); setmaskbit(100); setmaskbit(164);setmaskbit(228);
    setmaskbit(292); setmaskbit(356); setmaskbit(355); setmaskbit(354);
    setmaskbit(353); setmaskbit(352);
    
    printfreemask();

    clearmaskbit(31); clearmaskbit(95); clearmaskbit(159);clearmaskbit(223);
    clearmaskbit(287); clearmaskbit(351); clearmaskbit(415);clearmaskbit(479);
    clearmaskbit(90); clearmaskbit(154);clearmaskbit(218); clearmaskbit(282);
    clearmaskbit(346); clearmaskbit(347); clearmaskbit(348); clearmaskbit(349);
    clearmaskbit(350); clearmaskbit(100); clearmaskbit(164);clearmaskbit(228);
    clearmaskbit(292); clearmaskbit(356); clearmaskbit(355); clearmaskbit(354);
    clearmaskbit(353); clearmaskbit(352);

    printfreemask();

}

*/
void test_fs(void){

int fd1, fd2; //File descriptors
fd1 = fcreat("Test File", 0); //Creating a new file
printf("Helo %d\n", fd1);
//fd2 = fcreat("Sample", 0); //Creating a new file

fd1 = fopen("Test File", 1);//Opening a file in write-only mode
printf("file opened in write only mode..%d\n",fd1);
wwrite(fd1);
fclose(fd1);
//fwrite(fd1, )
fd1 = fopen("Test File", 0); //Opening the same file in Read only mode
rread(fd1);
//fclose(fd1);

//fd2 = fopen("Sample", 1); //Opening a file in write only mode
//fwrite(fd2, )
//fseek(fd2, 2);
//fd2 = fopen("Sample", 0); //Opening a file in read only mode
//rread(fd2);
//fclose(fd2);

}
Example #4
0
int main(int argc, char** argv) {
    u_char *packet;
    int i;
    uint32_t ck;
    
    struct sockaddr *sin_src;
    struct sockaddr *sin_net;
    struct sockaddr *sin_dst;
    struct sockaddr *sin_mask;
    struct ip6_pseudo_hdr ps_hdr;
    int sendsize;
    struct options opts;
    FILE* fp_domain;
    char * domain;
    struct writer_info wi;
    int pkt_len;
    
    double speed_limit;
    double pkt_sent;

    

    int q_class;
    int q_type;


    pthread_t thread;


    pthread_create(&thread,NULL,readliner,&speed_limit);

    sleeper = 50;
    pkt_sent = 0;
    speed_limit = 50000;
    /**
     * 
     * headers
     */
    struct ether_header *eth;
    struct iphdr *ip;
    struct ip6_hdr *ip6;
    struct udphdr *udp;
    u_char *dns;
    u_char dns_opt[] = {00, 00, 0x29, 0x08, 00, 00, 00, 00, 00, 00, 00};
    setoptions(argc, argv, &opts);
    
    


    

    

    

    packet = calloc(sizeof (u_char) * 4096, 1);
    sin_src = calloc(sizeof (struct sockaddr_storage), 1);
    sin_net = calloc(sizeof (struct sockaddr_storage), 1);
    sin_dst = calloc(sizeof (struct sockaddr_storage), 1);
    sin_mask = calloc(sizeof (struct sockaddr_storage), 1);
    domain = calloc(sizeof (char) * 1024, 1);
    //domain = NULL;
    
    if (packet == NULL ||
            sin_src == NULL ||
            sin_net == NULL ||
            sin_dst == NULL ||
            sin_mask == NULL ||
            domain == NULL) {
        return -1;
    }

    /**
     * 
     * ETHERNET static
     */

    eth = (struct ether_header *) packet;

    if (ether_setaddr(opts.smac, &(eth->ether_shost)) < 0) {
        fprintf(stderr, "smac error:%s\n");
        return 1;
    }
    if (ether_setaddr(opts.dmac, &(eth->ether_dhost)) < 0) {
        fprintf(stderr, "dmac error\n");
        return 1;
    }

    /**
     * 
     * IP static
     */
    if (getipaddr(opts.dip, sin_dst, opts.family) < 0) {
        fprintf(stderr, "dip error\n");
        return 2;
    }
    if (getipaddr(opts.snet, sin_net, opts.family) < 0) {
        fprintf(stderr, "sip error\n");
        return 2;
    }

    if (sin_net->sa_family != sin_dst->sa_family) {
        fprintf(stderr, "IP family doesn't match\n");
        return 2;
    }

    set_mask(sin_mask, sin_net->sa_family, opts.smask);

    if (sin_net->sa_family == AF_INET) {
        eth->ether_type = htons(ETHERTYPE_IP);

        ip = (struct iphdr *) (packet + ETHER_HDR_LEN);
        ip->daddr = ((struct sockaddr_in *) sin_dst)->sin_addr.s_addr;


        ip->version = 4;
        ip->ihl = 5; // no opts
        ip->frag_off = 0;
        ip->id = 0;
        ip->protocol = IPPROTO_UDP;
        ip->tos = 0;
        ip->ttl = IPDEFTTL;


        udp = (struct udphdr *) (((void *) ip) + IP_HDR_LEN);
    } else if (sin_net->sa_family == AF_INET6) {
        eth->ether_type = htons(ETHERTYPE_IPV6);

        ip6 = (struct ip6_hdr *) (packet + ETHER_HDR_LEN);
        ip6->ip6_vfc = 6 << 4;
        ip6->ip6_hlim = IPDEFTTL;
        ip6->ip6_nxt = IPPROTO_UDP;

        memcpy(&(ip6->ip6_dst), &(((struct sockaddr_in6 *) sin_dst)->sin6_addr), 16);

        udp = (struct udphdr *) (((void *) ip6) + IP6_HDR_LEN);
    } else {
        fprintf(stderr, "Family unknown\n");
        return 2;
    }

    /**
     * 
     * UDP static
     */
    //udp->check = 0;
    udp->dest = htons(53);

    /**
     * 
     * DNS static
     */
    dns = (u_char *) (((void *) udp) + UDP_HDR_LEN);


    wopen(&wi,&opts);
    
    init_domain_file(&fp_domain, opts.in_file_name);
    if (fp_domain == NULL) {
        fprintf(stderr, "Can't open queries file\n");
        wclose(&wi);
        
        return 4;
    }
    for (i = 0; i < opts.count; i++) {
	if(pkt_sent >= sleeper) {
		speed_calc(pkt_sent,speed_limit, &sleeper);
                pkt_sent = 0;
		usleep(1);
	}
        /**
         * 
         * DNS dynamic
         */
        if(nextdomain(fp_domain, &domain, &q_type, &q_class)) {
            printf("Can't read next domain\n");
            exit(1);
        }

        sendsize = res_mkquery(QUERY, domain, q_class, q_type, NULL,
                0, NULL, dns, PACKETSZ);
        dns[11] = 1;
        memcpy(dns + sendsize, dns_opt, 11);
        sendsize += 11;
        /**
         * 
         * UDP dynamic
         */
        udp->source = htons(rand());
        udp->len = htons(sendsize + UDP_HDR_LEN);
        udp->check = 0;
        /**
         * 
         * IP dynamic
         */
        get_rand_addr(sin_net, sin_mask, sin_src);

        if (sin_net->sa_family == AF_INET) {
            ip->saddr = ((struct sockaddr_in *) sin_src)->sin_addr.s_addr;
            ip->tot_len = htons(sendsize + UDP_HDR_LEN + (ip->ihl * 4));
            pkt_len = sendsize + UDP_HDR_LEN + (ip->ihl * 4) + ETHER_HDR_LEN;

            ip->check = 0;
            ip->check = inet_cksum(ip, (ip->ihl * 4), 0);
        } else if (sin_net->sa_family == AF_INET6) {
            memcpy(&(ip6->ip6_src), &(((struct sockaddr_in6 *) sin_src)->sin6_addr), 16);
            ip6->ip6_plen = htons(sendsize + UDP_HDR_LEN);
            pkt_len = sendsize + UDP_HDR_LEN + sizeof (struct ip6_hdr) +ETHER_HDR_LEN;

            ps_hdr.src = ip6->ip6_src;
            ps_hdr.dst = ip6->ip6_dst;
            ps_hdr.len = udp->len;
            ps_hdr.nh = ntohs(17);

            ck = inet_cksum(&ps_hdr, sizeof (ps_hdr), 0);
            udp->check = inet_cksum(udp, sendsize + UDP_HDR_LEN, (~ck)&0xffff);
        }


        
        
        if (pkt_len > opts.mtu) {
            fprintf(stderr, "too long: %s needs %d MTU is %d\n", domain, pkt_len, opts.mtu);
        } else {
            wwrite(&wi,packet,pkt_len);
        }
	pkt_sent++;
    }

    wclose(&wi);
    fclose(fp_domain);

    return (EXIT_SUCCESS);
}