Linux Socket Programming by Example PHẦN 5 docx

... Failed. 350 : */ 351 : static int 352 : rpn_opr(char *oper) { 353 : int x; 354 : static struct { 355 : char *oper; 356 : rpn_spec func; 357 : } spec[] = { 358 : { "dup", rpn_dup }, Linux Socket Programming ... Programming by Example - Warren W. Gay 255 250 : * RESULTS: 251 : * 1. The randomly generated prime 252 : * number (actually, only a high 253 : * pr...

Ngày tải lên: 12/08/2014, 21:20

... links: /etc/rc.d/rc3.d/S50inet Linux Socket Programming by Example - Warren W. Gay 369 Table 16.1. Security Methods and Weaknesses Security Method Weakness by chance, brute force, or by knowing information ... let's now dive into network security as it applies to socket programming. Linux Socket Programming by Example - Warren W. Gay 3 85 Listing 16.3 shows...

Ngày tải lên: 12/08/2014, 21:20

... adr_unix.sun_path-1] = 0; 52 : 53 : len_unix = SUN_LEN(&adr_unix); 54 : 55 : /* Now make first byte null */ 56 : adr_unix.sun_path[0] = 0; 57 : 58 : /* Linux Socket Programming by Example - Warren W. ... simple example of these two different byte orderings. Figure 2.4. Here is an example of the basic big- and little-endian byte ordering. Linux Socket Programmin...

Ngày tải lên: 12/08/2014, 21:20

... Allocations Class Lowest Highest Netmask A 10.0.0.0 10. 255 . 255 . 255 255 .0.0.0 B 172.16.0.0 172.31. 255 . 255 255 . 255 .0.0 C 192.168.0.0 192.168. 255 . 255 255 . 255 . 255 .0 Your choice of a class A, B, or C IP number ... class = 'C'; 58 : netmask = " 255 . 255 . 255 .0"; 59 : } else if ( (msb & 0xF0) == 0xE0 ) { 60: class = 'D'; 61: netmask = "...

Ngày tải lên: 12/08/2014, 21:20

... assume that kernel buffer Linux Socket Programming by Example - Warren W. Gay 1 05 55: 56 : if ( z == -1 ) 57 : bail("bind()"); 58 : 59 : /* Display all of our bound sockets */ 60: system("netstat ... "127.0.0.23"; 53 : } 54 : 55 : /* 56 : * Create a socket address, to use Linux Socket Programming by Example - Warren W. Gay 149 it. Funct...

Ngày tải lên: 12/08/2014, 21:20

... ",stderr); 24: fputs(on_what,stderr); 25: fputc('\n',stderr); 26: exit(1); Linux Socket Programming by Example - Warren W. Gay 179 The pointer returned by getprotobynumber(3) is only valid until ... srvr_addr = argv[1]; 52 : } else { 53 : /* Use default address: */ 54 : srvr_addr = "127.0.0.1"; 55 : } 56 : 57 : /* 58 : * If the port number is given...

Ngày tải lên: 12/08/2014, 21:20

... Stack ptr */ 50 : FILE *rx; /* Recv FILE */ 51 : FILE *tx; /* Xmit FILE */ 52 : } ClientInfo; 53 : 54 : ClientInfo client[MAX_CLIENTS]; 55 : 56 : /* 57 : * This function reports the error and 58 : * exits ... AF_INET */ 51 : int len_inet; /* length */ 52 : int s = -1; /* Socket */ 53 : int c = -1; /* Client socket */ 54 : FILE *rx = NULL; /* Read stream */ 55 : FILE *tx = NU...

Ngày tải lên: 12/08/2014, 21:20

... sleep(1); 54 : 55 : iband(s,"Linus begat Linux, "); 56 : sleep(1); 57 : 58 : iband(s,"and the Penguins"); 59 : sleep(1); 60: Linux Socket Programming by Example - Warren W. Gay 352 As ... sockaddr_in adr_clnt; 50 : int len_inet; 51 : 52 : /* 53 : * Create a TCP/IP socket to use: 54 : */ 55 : s = socket( PF_INET,SOCK_STREAM,0); 56 : if ( s == -1...

Ngày tải lên: 12/08/2014, 21:20

... provider. Linux Socket Programming by Example - Warren W. Gay 458 50 : /* 51 : * Access has been granted: send socket 52 : * to client. 53 : * 54 : * ARGUMENTS: 55 : * c Client socket 56 : * port Port ... buf[]: 55 : */ 56 : msgh.msg_control = buf; 57 : msgh.msg_controllen = sizeof buf; 58 : Linux Socket Programming by Example - Warren W. Gay 442 51 : * No...

Ngày tải lên: 12/08/2014, 21:20

... 127. 255 . 255 . 255 7 24 B 128.0.0.0 191. 255 . 255 . 255 14 16 C 192.0.0.0 223. 255 . 255 . 255 21 8 D 224.0.0.0 239. 255 . 255 . 255 28 N/A E 240.0.0.0 247. 255 . 255 . 255 27 N/A Linux Socket Programming by Example ... (line 53 ). Linux Socket Programming by Example - Warren W. Gay 471 Index Appendix A. Socket Function Quick Reference Socket- Specific Functi...

Ngày tải lên: 12/08/2014, 21:20