| 8 |
|
#include <netdb.h> |
| 9 |
|
#include <strings.h> |
| 10 |
|
|
| 11 |
+ |
#define RECONFIGURE_RETURN_CODE 2 |
| 12 |
+ |
|
| 13 |
|
typedef struct{ |
| 14 |
|
int fm_port; |
| 15 |
|
char *fm_host; |
| 18 |
|
char *server_fqdn; |
| 19 |
|
int server_udp_port; |
| 20 |
|
int server_tcp_port; |
| 21 |
< |
long last_modified; |
| 21 |
> |
char *last_modified; |
| 22 |
|
char *files_list; |
| 23 |
|
char *key; |
| 24 |
|
int udp_update_time; |
| 85 |
|
errf("Server error (%m)"); |
| 86 |
|
return -1; |
| 87 |
|
} |
| 88 |
< |
ihost_state->last_modified=atol(reply); |
| 88 |
> |
if((ihost_state->last_modified=strdup(reply)) == NULL){ |
| 89 |
> |
errf("strdup failed (%m)"); |
| 90 |
> |
return -1; |
| 91 |
> |
} |
| 92 |
|
|
| 93 |
|
reply=sock_comm(fm_fd_r, fm_fd_w, "FILELIST\n"); |
| 94 |
|
if((reply== NULL) || (strncasecmp(reply, "ERROR", 5) ==0)){ |
| 180 |
|
} |
| 181 |
|
|
| 182 |
|
return 0; |
| 183 |
+ |
} |
| 184 |
|
|
| 185 |
+ |
int heartbeat(ihost_state_t *ihost_state){ |
| 186 |
+ |
struct sockaddr_in addr; |
| 187 |
+ |
struct in_addr haddr; |
| 188 |
+ |
int sd; |
| 189 |
+ |
FILE *fm_fd_r, *fm_fd_w; |
| 190 |
+ |
char *reply; |
| 191 |
+ |
int exitcode=0; |
| 192 |
+ |
|
| 193 |
+ |
if ((sd = socket(AF_INET, SOCK_STREAM, PF_UNSPEC)) < 0) { |
| 194 |
+ |
errf("Can't create AF_INET socket (%m)"); |
| 195 |
+ |
return -1; |
| 196 |
+ |
} |
| 197 |
+ |
|
| 198 |
+ |
if (get_host_addr(ihost_state->server_fqdn, &haddr) != 0){ |
| 199 |
+ |
errf("Failed to resolve address %s (%m)", ihost_state->fm_host); |
| 200 |
+ |
return -1; |
| 201 |
+ |
} |
| 202 |
+ |
|
| 203 |
+ |
memset((char *)&addr, 0, sizeof addr); |
| 204 |
+ |
addr.sin_family = AF_INET; |
| 205 |
+ |
memcpy((char *)&addr.sin_addr, &haddr, sizeof haddr); |
| 206 |
+ |
addr.sin_port = htons(ihost_state->server_tcp_port); |
| 207 |
+ |
|
| 208 |
+ |
if (connect(sd, (struct sockaddr *)&addr, sizeof addr) != 0) { |
| 209 |
+ |
errf("Failed to connect to %s on port %d (%m)", ihost_state->fm_host, ihost_state->fm_port); |
| 210 |
+ |
return -1; |
| 211 |
+ |
} |
| 212 |
+ |
|
| 213 |
+ |
/* Need to open 2 files, one for reading one for writing, as it gets confused if we only use 1 :) */ |
| 214 |
+ |
if ((fm_fd_r=fdopen(sd,"r")) == NULL){ |
| 215 |
+ |
errf("Failed to open stream (%m)"); |
| 216 |
+ |
return -1; |
| 217 |
+ |
} |
| 218 |
+ |
|
| 219 |
+ |
if ((fm_fd_w=fdopen(dup(sd),"w")) == NULL){ |
| 220 |
+ |
errf("Failed to open stream (%m)"); |
| 221 |
+ |
return -1; |
| 222 |
+ |
} |
| 223 |
+ |
|
| 224 |
+ |
reply=sock_comm(fm_fd_r, fm_fd_w, "HEARTBEAT\n"); |
| 225 |
+ |
if ((reply==NULL) || (strncasecmp(reply, "ERROR", 2) == 0) ) { |
| 226 |
+ |
errf("Server error"); |
| 227 |
+ |
return -1; |
| 228 |
+ |
} |
| 229 |
+ |
|
| 230 |
+ |
reply=sock_comm(fm_fd_r, fm_fd_w, "CONFIG\n"); |
| 231 |
+ |
if ((reply==NULL) || (strncasecmp(reply, "ERROR", 2) == 0) ) { |
| 232 |
+ |
errf("Server error"); |
| 233 |
+ |
return -1; |
| 234 |
+ |
} |
| 235 |
+ |
|
| 236 |
+ |
reply=sock_comm(fm_fd_r, fm_fd_w, ihost_state->files_list); |
| 237 |
+ |
if ((reply==NULL) || (strncasecmp(reply, "OK", 2) != 0) ) { |
| 238 |
+ |
errf("Server error"); |
| 239 |
+ |
return -1; |
| 240 |
+ |
} |
| 241 |
+ |
|
| 242 |
+ |
reply=sock_comm(fm_fd_r, fm_fd_w, ihost_state->last_modified); |
| 243 |
+ |
if (reply==NULL) { |
| 244 |
+ |
errf("Server error"); |
| 245 |
+ |
return -1; |
| 246 |
+ |
} |
| 247 |
+ |
if (strncasecmp(reply, "ERROR", 2) == 0){ |
| 248 |
+ |
/* Means the config has changed */ |
| 249 |
+ |
exitcode=RECONFIGURE_RETURN_CODE; |
| 250 |
+ |
} |
| 251 |
+ |
reply=sock_comm(fm_fd_r, fm_fd_w, "KEY\n"); |
| 252 |
+ |
if ((reply==NULL) || (strncasecmp(reply, "ERROR", 2) == 0) ) { |
| 253 |
+ |
errf("Server error"); |
| 254 |
+ |
return -1; |
| 255 |
+ |
} |
| 256 |
+ |
|
| 257 |
+ |
if((ihost_state->key=strdup(reply)) == NULL){ |
| 258 |
+ |
errf("strdup failed (%m)"); |
| 259 |
+ |
return -1; |
| 260 |
+ |
} |
| 261 |
+ |
|
| 262 |
+ |
reply=sock_comm(fm_fd_r, fm_fd_w, "END\n"); |
| 263 |
+ |
if((reply== NULL) || (strncasecmp(reply, "ERROR", 5) ==0 )){ |
| 264 |
+ |
errf("Server error (%m)"); |
| 265 |
+ |
return -1; |
| 266 |
+ |
} |
| 267 |
+ |
|
| 268 |
+ |
return exitcode; |
| 269 |
|
} |
| 270 |
|
|
| 271 |
< |
int main(){ |
| 271 |
> |
|
| 272 |
> |
int main(int argc, char **argv){ |
| 273 |
|
ihost_state_t ihost_state; |
| 274 |
+ |
errf_set_progname(argv[0]); |
| 275 |
+ |
if(argc!=3){ |
| 276 |
+ |
errf_usage("<host> <port>"); |
| 277 |
+ |
exit(1); |
| 278 |
+ |
} |
| 279 |
|
|
| 280 |
< |
ihost_state.fm_host=strdup("kernow.ukc.ac.uk"); |
| 281 |
< |
ihost_state.fm_port=4567; |
| 280 |
> |
ihost_state.fm_host=argv[1]; |
| 281 |
> |
ihost_state.fm_port=atoi(argv[2]); |
| 282 |
|
|
| 283 |
|
if(ihost_configure(&ihost_state)!=0){ |
| 284 |
|
errf("configure failed"); |
