Kannel: Open Source WAP and SMS gateway  $Revision: 5037 $
udpfeed.c
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56 
57 /* udpfeed.c - blindly send UDP packets to a certain port
58  *
59  * This little tool reads a bunch of files and sends each of them
60  * to a given port as a single UDP packets. It's useful for running
61  * sets of test packets to see if any of them will crash the gateway.
62  * By default, it sends them at one-second intervals.
63  */
64 
65 #include <unistd.h>
66 
67 #include "gwlib/gwlib.h"
68 
69 #define UDP_MAXIMUM (65535 - 40)
70 
71 static unsigned char usage[] = "\
72 Usage: udpfeed [options] files...\n\
73 \n\
74 where options are:\n\
75 \n\
76 -h help\n\
77 -g hostname name of IP number of host to send to (default: localhost)\n\
78 -p port port number to send to (default: 9200)\n\
79 -i interval delay between packers (default: 1.0 seconds)\n\
80 \n\
81 Each file will be sent as a single packet.\n\
82 ";
83 
84 static Octstr *hostname;
85 static int port = 9200; /* By default, the sessionless WSP port */
86 static double interval = 1.0; /* Default interval (seconds) between packets */
87 static long maxsize = UDP_MAXIMUM; /* Maximum packet size in octets */
88 
89 static void help(void) {
90  info(0, "\n%s", usage);
91 }
92 
93 static void send_file(int udpsock, char *filename, Octstr *address) {
94  Octstr *contents;
95 
96  contents = octstr_read_file(filename);
97  if (contents == NULL) {
98  info(0, "Skipping \"%s\".", filename);
99  return;
100  }
101 
102  info(0, "Sending \"%s\", %ld octets.", filename, octstr_len(contents));
103 
104  if (octstr_len(contents) > maxsize) {
105  octstr_truncate(contents, maxsize);
106  warning(0, "Truncating to %ld octets.", maxsize);
107  }
108 
109  udp_sendto(udpsock, contents, address);
110 
111  octstr_destroy(contents);
112 }
113 
114 int main(int argc, char **argv) {
115  int opt;
116  Octstr *address;
117  int udpsock;
118 
119  gwlib_init();
120 
121  /* Set defaults that can't be set statically */
122  hostname = octstr_create("localhost");
123 
124  while ((opt = getopt(argc, argv, "hg:p:i:m:")) != EOF) {
125  switch(opt) {
126  case 'g':
127  octstr_destroy(hostname);
128  hostname = octstr_create(optarg);
129  break;
130 
131  case 'p':
132  port = atoi(optarg);
133  break;
134 
135  case 'i':
136  interval = atof(optarg);
137  break;
138 
139  case 'm':
140  maxsize = atol(optarg);
141  if (maxsize > UDP_MAXIMUM) {
143  warning(0, "-m: truncated to UDP maximum of"
144  "%ld bytes.", maxsize);
145  }
146  break;
147 
148  case 'h':
149  help();
150  exit(0);
151  break;
152 
153  case '?':
154  default:
155  error(0, "Unknown option '%c'", opt);
156  help();
157  exit(1);
158  break;
159  }
160  }
161 
162  address = udp_create_address(hostname, port);
163  udpsock = udp_client_socket();
164  if (udpsock < 0)
165  exit(1);
166 
167  for ( ; optind < argc; optind++) {
168  send_file(udpsock, argv[optind], address);
169  if (interval > 0 && optind + 1 < argc)
171  }
172 
173  octstr_destroy(address);
174  octstr_destroy(hostname);
175  gwlib_shutdown();
176  return 0;
177 }
void error(int err, const char *fmt,...)
Definition: log.c:612
void info(int err, const char *fmt,...)
Definition: log.c:636
Definition: http.c:1998
static long maxsize
Definition: udpfeed.c:87
int optind
Definition: attgetopt.c:80
int getopt(int argc, char **argv, char *opts)
Definition: attgetopt.c:84
#define UDP_MAXIMUM
Definition: udpfeed.c:69
int udp_client_socket(void)
Definition: socket.c:464
static void help(void)
Definition: udpfeed.c:89
static unsigned char usage[]
Definition: udpfeed.c:71
void warning(int err, const char *fmt,...)
Definition: log.c:624
void octstr_destroy(Octstr *ostr)
Definition: octstr.c:322
char filename[FILENAME_MAX+1]
Definition: log.c:135
#define octstr_create(cstr)
Definition: octstr.h:125
void gwthread_sleep(double seconds)
Octstr * octstr_read_file(const char *filename)
Definition: octstr.c:1546
long octstr_len(const Octstr *ostr)
Definition: octstr.c:340
int main(int argc, char **argv)
Definition: udpfeed.c:114
Definition: octstr.c:118
static Octstr * hostname
Definition: udpfeed.c:84
char * optarg
Definition: attgetopt.c:82
static double interval
Definition: udpfeed.c:86
void gwlib_shutdown(void)
Definition: gwlib.c:94
void octstr_truncate(Octstr *ostr, int new_len)
Definition: octstr.c:1325
int udp_sendto(int s, Octstr *datagram, Octstr *addr)
Definition: socket.c:567
void gwlib_init(void)
Definition: gwlib.c:78
static void send_file(int udpsock, char *filename, Octstr *address)
Definition: udpfeed.c:93
Octstr * udp_create_address(Octstr *host_or_ip, int port)
Definition: socket.c:517
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