ReactOS 0.4.16-dev-1521-gb8f1da6
Macros | Functions | Variables
main.c File Reference
#include <headers.h>
#include <datatypes.h>
#include <options.h>
#include <display.h>
#include <leases.h>
#include <parser.h>
Include dependency graph for main.c:

Go to the source code of this file.

Macros

#define MYPORT   67
 

Functions

int main (int argc, char *argv[])
 

Variables

DHCPLIST * list
 

Macro Definition Documentation

◆ MYPORT

#define MYPORT   67

Definition at line 8 of file main.c.

Function Documentation

◆ main()

int main ( int argc  ,
char *  argv[] 
)

Definition at line 12 of file main.c.

13{
14#ifdef __MINGW32__
15 WSADATA wsaData;
16 int nCode;
17#endif
18 int sockfd;
19 struct sockaddr_in my_addr;
20 struct sockaddr_in their_addr;
21 int addr_len, numbytes;
22 DHCPMESSAGE dhcpm;
23 DHCPOPTIONS dhcpo;
24
25#ifdef __MINGW32__
26 if ((nCode = WSAStartup(MAKEWORD(1, 1), &wsaData)) != 0)
27 {
28 perror("WSAStartup");
29 return 0;
30 }
31#endif
32
33 if ((sockfd = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP)) == -1) {
34 perror("socket");
35 exit(1);
36 }
37
38 init_leases_list();
39
40 my_addr.sin_family = AF_INET;
41 my_addr.sin_port = htons(MYPORT);
42 my_addr.sin_addr.s_addr = INADDR_ANY;
43 memset(&(my_addr.sin_zero), '\0', 8);
44
45 if (bind(sockfd, (struct sockaddr *)&my_addr,
46 sizeof(struct sockaddr)) == -1) {
47 perror("bind");
48 exit(1);
49 }
50
51 addr_len = sizeof(struct sockaddr);
52 while((numbytes=recvfrom(sockfd,&dhcpm, sizeof( DHCPMESSAGE ), 0,
53 (struct sockaddr *)&their_addr, &addr_len)) != -1) {
54 /* Parse DHCP */
55 display_dhcp_packet( &dhcpm, &dhcpo );
56 if( parse_dhcp_options( &dhcpm, &dhcpo ) < 0 )
57 continue;
58 if( display_dhcp_packet( &dhcpm, &dhcpo ) < 0 )
59 continue;
60 if( process_dhcp_packet( &dhcpm, &dhcpo ) < 0 )
61 continue;
62 }
63
64 close(sockfd);
65
66#ifdef __MINGW32__
67 WSACleanup();
68#endif
69
70 return 0;
71
72}
close
#define close
Definition: acwin.h:98
recvfrom
INT WSAAPI recvfrom(IN SOCKET s, OUT CHAR FAR *buf, IN INT len, IN INT flags, OUT LPSOCKADDR from, IN OUT INT FAR *fromlen)
Definition: recv.c:87
WSAStartup
INT WINAPI WSAStartup(IN WORD wVersionRequested, OUT LPWSADATA lpWSAData)
Definition: startup.c:113
IPPROTO_UDP
#define IPPROTO_UDP
Definition: ip.h:197
AF_INET
#define AF_INET
Definition: tcpip.h:117
perror
_CRTIMP void __cdecl perror(_In_opt_z_ const char *_ErrMsg)
init_leases_list
int init_leases_list()
Definition: leases.c:8
INADDR_ANY
#define INADDR_ANY
Definition: inet.h:80
htons
#define htons(x)
Definition: module.h:215
display_dhcp_packet
int display_dhcp_packet(DHCPMESSAGE *dhcpm, DHCPOPTIONS *dhcpo)
Definition: display.c:6
parse_dhcp_options
int parse_dhcp_options(DHCPMESSAGE *, DHCPOPTIONS *)
Definition: parser.c:8
process_dhcp_packet
int process_dhcp_packet(DHCPMESSAGE *, DHCPOPTIONS *)
Definition: parser.c:193
MYPORT
#define MYPORT
Definition: main.c:8
exit
#define exit(n)
Definition: config.h:202
memset
#define memset(x, y, z)
Definition: compat.h:39
bind
INT WSAAPI bind(IN SOCKET s, IN CONST struct sockaddr *name, IN INT namelen)
Definition: socklife.c:36
socket
SOCKET WSAAPI socket(IN INT af, IN INT type, IN INT protocol)
Definition: socklife.c:143
sockaddr_in
Definition: winsock.h:509
MAKEWORD
#define MAKEWORD(a, b)
Definition: typedefs.h:248
WSACleanup
int PASCAL FAR WSACleanup(void)
Definition: startup.c:60
SOCK_DGRAM
#define SOCK_DGRAM
Definition: winsock.h:336

Variable Documentation

◆ list

DHCPLIST* list

Definition at line 9 of file main.c.

Referenced by testQuery().