Kannel: Open Source WAP and SMS gateway  $Revision: 5037 $
test_udp.c
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56 
57 /*
58  * test_udp.c - program to test UDP packet functions
59  *
60  * This program implements a simple ping-pong server.
61  *
62  * Lars Wirzenius
63  */
64 
65 #include "gwlib/gwlib.h"
66 #include <string.h>
67 
68 static char usage[] = "\
69 Usage: test_udp client server_port\n\
70  test_udp server server_port\n\
71 ";
72 
73 #define PING "ping"
74 #define PONG "pong"
75 #define TIMES 10
76 
77 static void client(int port) {
78  int i, s;
79  Octstr *ping, *pong, *addr, *from;
80 
81  s = udp_client_socket();
82  ping = octstr_create(PING);
83  addr = udp_create_address(octstr_create("localhost"), port);
84  if (s == -1 || addr == NULL)
85  panic(0, "Couldn't set up client socket.");
86 
87  for (i = 0; i < TIMES; ++i) {
88  if (udp_sendto(s, ping, addr) == -1)
89  panic(0, "Couldn't send ping.");
90  if (udp_recvfrom(s, &pong, &from) == -1)
91  panic(0, "Couldn't receive pong");
92  info(0, "Got <%s> from <%s:%d>", octstr_get_cstr(pong),
94  udp_get_port(from));
95  }
96 }
97 
98 static void server(int port) {
99  int i, s;
100  Octstr *ping, *pong, *from;
101 
102  s = udp_bind(port,"0.0.0.0");
103  pong = octstr_create(PONG);
104  if (s == -1)
105  panic(0, "Couldn't set up client socket.");
106 
107  for (i = 0; i < TIMES; ++i) {
108  if (udp_recvfrom(s, &ping, &from) == -1)
109  panic(0, "Couldn't receive ping");
110  info(0, "Got <%s> from <%s:%d>", octstr_get_cstr(ping),
111  octstr_get_cstr(udp_get_ip(from)),
112  udp_get_port(from));
113  if (udp_sendto(s, pong, from) == -1)
114  panic(0, "Couldn't send pong.");
115  }
116 }
117 
118 int main(int argc, char **argv) {
119  int port;
120 
121  gwlib_init();
122 
123  if (argc != 3)
124  panic(0, "Bad argument list\n%s", usage);
125 
126  port = atoi(argv[2]);
127 
128  if (strcmp(argv[1], "client") == 0)
129  client(port);
130  else
131  server(port);
132  return 0;
133 }
void info(int err, const char *fmt,...)
Definition: log.c:636
Definition: http.c:1998
#define PING
Definition: test_udp.c:73
int udp_get_port(Octstr *addr)
Definition: socket.c:547
static void client(int port)
Definition: test_udp.c:77
#define octstr_get_cstr(ostr)
Definition: octstr.h:233
static int port
Definition: fakesmsc.c:120
static Octstr * from
Definition: mtbatch.c:95
int udp_bind(int port, const char *source_addr)
Definition: socket.c:478
int udp_client_socket(void)
Definition: socket.c:464
int main(int argc, char **argv)
Definition: test_udp.c:118
#define TIMES
Definition: test_udp.c:75
#define octstr_create(cstr)
Definition: octstr.h:125
static char usage[]
Definition: test_udp.c:68
Definition: octstr.c:118
static void server(int port)
Definition: test_udp.c:98
#define PONG
Definition: test_udp.c:74
#define panic
Definition: log.h:87
int udp_sendto(int s, Octstr *datagram, Octstr *addr)
Definition: socket.c:567
void gwlib_init(void)
Definition: gwlib.c:78
int udp_recvfrom(int s, Octstr **datagram, Octstr **addr)
Definition: socket.c:582
Octstr * udp_create_address(Octstr *host_or_ip, int port)
Definition: socket.c:517
Octstr * udp_get_ip(Octstr *addr)
Definition: socket.c:557
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