Annotation of OpenXM/src/kxx/oxmain.c, Revision 1.13
1.13 ! takayama 1: /* $OpenXM: OpenXM/src/kxx/oxmain.c,v 1.12 2002/10/28 00:38:32 takayama Exp $ */
1.1 maekawa 2: /* nullserver01 */
3: #include <stdio.h>
1.4 takayama 4: #include <fcntl.h>
1.10 takayama 5: #include <unistd.h>
1.1 maekawa 6: #include <sys/types.h>
7: #include <sys/socket.h>
8: #include <sys/time.h>
9: #include <netinet/in.h>
10: #include <netdb.h>
11: #include <signal.h>
12: #include <setjmp.h>
13: /* -lnsl -lsocket /usr/ucblib/libucb.a */
14: #include "ox_kan.h"
15: #include "serversm.h"
16:
1.4 takayama 17: #define SERVERNAME "ox_sm1"
1.1 maekawa 18:
19: int OxCritical = 0;
20: int OxInterruptFlag = 0;
1.12 takayama 21: int OxTerminateMode = 0;
1.1 maekawa 22:
23: int SerialCurrentControl;
24:
25: int MyServerPid;
1.4 takayama 26: #define SERVERNAME_SIZE 4096
27: char ServerName[SERVERNAME_SIZE];
1.1 maekawa 28: int PacketMonitor = 0;
29: int Quiet = 0;
30:
31: int LocalMode = 1;
32: int NotifyPortnumber = 0;
1.4 takayama 33: int Do_not_use_control_stream_to_tell_no_server = 1;
34: static void errorToStartEngine(void);
35: static int findOxServer(char *server);
36: static void couldNotFind(char *s);
1.8 takayama 37: #if defined(__CYGWIN__)
38: int errno;
39: #endif
40: /* gcc -v -c hoge.c */
1.1 maekawa 41:
42: main(int argc, char *argv[]) {
43: int fd;
44: int size;
45: char sname[1024];
46: int tmp[1];
47: char *buf;
48: int i;
49: int fdControl = -1; int portControl = 1200;
50: int fdStream = -1; int portStream = 1300;
51: int reverse = 0;
52: extern int OpenedSocket;
53: char portfile[1024];
1.12 takayama 54: char *pass = NULL;
1.4 takayama 55: int result;
1.9 takayama 56: int sleepingTime = 0;
1.12 takayama 57: extern int OxTerminateMode;
1.1 maekawa 58:
59: strcpy(sname,"localhost");
60: strcpy(ServerName,SERVERNAME);
61: i = 1;
1.2 takayama 62: if (argc == 1) {
63: oxmainUsage();
1.12 takayama 64: exit(10);
1.2 takayama 65: }
1.1 maekawa 66: while (i<argc) {
67: if (strcmp(argv[i],"-host") == 0) {
68: i++;
69: if (i<argc) strcpy(sname,argv[i]);
70: }else if (strcmp(argv[i],"-data")==0) {
71: i++;
72: if (i<argc) sscanf(argv[i],"%d",&portStream);
73: }else if (strcmp(argv[i],"-control")==0) {
74: i++;
75: if (i<argc) sscanf(argv[i],"%d",&portControl);
76: }else if (strcmp(argv[i],"-ox") == 0) {
77: i++;
78: if (i<argc) strcpy(ServerName,argv[i]);
79: }else if (strcmp(argv[i],"-monitor") == 0) {
80: PacketMonitor = 1;
81: }else if (strcmp(argv[i],"-insecure") == 0) {
82: LocalMode = 0;
83: }else if (strcmp(argv[i],"-reverse") == 0) {
84: reverse = 1;
1.12 takayama 85: }else if (strcmp(argv[i],"-finish") == 0) {
86: OxTerminateMode = 1;
1.1 maekawa 87: }else if (strcmp(argv[i],"-portfile") == 0) {
88: i++;
89: if (i<argc) {
1.7 takayama 90: sscanf(argv[i],"%s",portfile);
91: portControl = 0;
92: portStream = 0;
93: NotifyPortnumber = 1;
1.1 maekawa 94: }
95: }else if (strcmp(argv[i],"-pass") == 0) {
96: i++;
97: if (i<argc) {
1.7 takayama 98: pass = argv[i];
1.1 maekawa 99: }
1.9 takayama 100: }else if (strcmp(argv[i],"-wait") == 0) {
101: i++;
102: if (i<argc) {
103: sscanf(argv[i],"%d",&sleepingTime);
104: }
1.1 maekawa 105: }else {
106: fprintf(stderr,"Unknown option %s.\n",argv[i]);
107: oxmainUsage(); exit(10);
108: }
109: i++;
110: }
111:
1.4 takayama 112: if (Do_not_use_control_stream_to_tell_no_server) {
1.7 takayama 113: if (findOxServer(ServerName) < 0) {
114: fprintf(stderr,"Sleeping five seconds...\n");
115: sleep(5);
116: exit(-1);
117: }
1.9 takayama 118: }
119:
120: if (sleepingTime) {
121: fprintf(stderr,"Waiting to connect for %d seconds...\n",sleepingTime);
122: sleep(sleepingTime);
123: fprintf(stderr,"\nTrying to connect\n");
1.4 takayama 124: }
125:
1.1 maekawa 126: if (reverse) {
127: /* The order is very important. */
128: fdControl = socketConnectWithPass(sname,portControl,pass);
129: fdStream = socketConnectWithPass(sname,portStream,pass);
130:
131: fprintf(stderr,"Connected: control = %d, data = %d.\n",fdControl,fdStream);
1.7 takayama 132: result = 0;
1.5 takayama 133:
134:
1.1 maekawa 135: if (portControl != -1) {
136: MyServerPid = fork();
137: if (MyServerPid > 0 ) parentServerMain(fdControl,fdStream);
1.4 takayama 138: else result=childServerMain(fdControl,fdStream);
1.1 maekawa 139: }else{
1.4 takayama 140: result=childServerMain(fdControl,fdStream);
1.1 maekawa 141: }
1.4 takayama 142: /* This line will be never executed in case of success */
1.7 takayama 143: if (result < 0 ) {
144: errorToStartEngine();
145: }
1.1 maekawa 146: }
147:
148: /* non-reverse case. */
149: fprintf(stderr,"Hostname is %s \n",sname);
150: fprintf(stderr,"Port for data (-data) = %d \n",portStream);
151: fprintf(stderr,"Port for control message (-control) = %d \n",portControl);
152: fflush(NULL);
153:
154:
155: if (LocalMode) {
156: if (portControl != -1) {
157: fdControl = socketOpen(sname,portControl);
158: portControl = OpenedSocket;
159: if (NotifyPortnumber) {
1.7 takayama 160: oxWritePortFile(0,portControl,portfile);
1.1 maekawa 161: }
162: fdControl = socketAcceptLocal(fdControl);
163: fprintf(stderr,"\n control port %d : Connected.\n",portControl);
164: }
165: if (portStream != -1) {
166: fdStream = socketOpen(sname,portStream);
167: portStream = OpenedSocket;
168: if (NotifyPortnumber) {
1.7 takayama 169: oxWritePortFile(1,portStream,portfile);
1.1 maekawa 170: }
171: fdStream = socketAcceptLocal(fdStream);
172: fprintf(stderr,"\n stream port %d : Connected.\n",portStream);
173: }
174: }else{
175: if (portControl != -1) {
176: fdControl = socketOpen(sname,portControl);
177: portControl = OpenedSocket;
178: if (NotifyPortnumber) {
1.7 takayama 179: oxWritePortFile(0,portControl,portfile);
1.1 maekawa 180: }
181: fdControl = socketAccept(fdControl);
182: fprintf(stderr,"\n control port %d : Connected.\n",portControl);
183: }
184: if (portStream != -1) {
185: fdStream = socketOpen(sname,portStream);
186: portStream = OpenedSocket;
187: if (NotifyPortnumber) {
1.7 takayama 188: oxWritePortFile(1,portStream,portfile);
1.1 maekawa 189: }
190: fdStream = socketAccept(fdStream);
191: fprintf(stderr,"\n stream port %d : Connected.\n",portStream);
192: }
193: }
194:
195:
1.4 takayama 196: result = 0;
1.1 maekawa 197: if (portControl != -1) {
198: MyServerPid = fork();
199: if (MyServerPid > 0 ) parentServerMain(fdControl,fdStream);
1.4 takayama 200: else result = childServerMain(fdControl,fdStream);
1.1 maekawa 201: }else{
1.4 takayama 202: result = childServerMain(fdControl,fdStream);
1.1 maekawa 203: }
1.4 takayama 204: if (result < 0) errorToStartEngine();
205: }
1.1 maekawa 206:
1.4 takayama 207: static void errorToStartEngine(void) {
208: fprintf(stderr,"Failed to start the engine. Childing process is terminating.\n");
209: /* You have to tell to the control server that there is no engine.
1.7 takayama 210: And, the control server must tell the client that there is no
211: engine.
212: This part has not yet been implemented.
213: If you implement this, set Do_not_use_control_stream_to_tell_no_server to
214: zero.
215: */
1.4 takayama 216: sleep(2);
217: exit(-1);
1.1 maekawa 218: }
219:
220: oxmainUsage() {
221: fprintf(stderr,"Usage: \n");
222: fprintf(stderr," ox [-ox serverprogram -host name -data portnum -control portnum -monitor]\n");
223: fprintf(stderr," [-insecure -portfile fname -reverse -pass xxxyyyzzz]");
1.12 takayama 224: fprintf(stderr," [-finish]");
1.1 maekawa 225: fprintf(stderr,"\n");
1.2 takayama 226: fprintf(stderr,"-reverse: ox server connects to the client.\n");
227: fprintf(stderr," The client must give a one time password to ox server to connect to the client with -pass option.\n");
228: fprintf(stderr," The one time password can be seen by ps command, so you must not use this one time password system on an untrustful host.\n");
229: fprintf(stderr," The one time password should be sent by a safe communication line like ssh and the ox server should be started by ssh. Do not use rsh\n");
230: fprintf(stderr," If -reverse is not given, the client connect to the ox server\n");
231: fprintf(stderr," See OpenXM/src/SSkan/Doc/ox.sm1, /sm1connectr\n");
232: fprintf(stderr,"-insecure : \n");
233: fprintf(stderr," If you access to the server from a localhost, you do not need one time password. However, if you access outside of the localhost, a one time password is required. To turn off this restriction, -insecure option is used.\n");
1.4 takayama 234: fprintf(stderr,"\n");
235: fprintf(stderr,"If ox fails to find the serverprogram, it tries to look for it in /usr/local/OpenXM/bin and $OpenXM_HOME/bin.\n");
236: fprintf(stderr,"\n");
1.2 takayama 237: fprintf(stderr,"Example 1:\n");
1.3 takayama 238: fprintf(stderr,"(Start the ox server): dc1%% ox -ox ~/OpenXM/bin/ox_sm1 -host dc1.math.kobe-u.ac.jp -insecure -control 1200 -data 1300\n");
1.2 takayama 239: fprintf(stderr,"(client): sm1\n ");
240: fprintf(stderr," (ox.sm1) run ; \n");
1.1 maekawa 241: fprintf(stderr," sm1>[(dc1.math.kobe-u.ac.jp) 1300 1200] oxconnect /ox.ccc set\n");
1.2 takayama 242: fprintf(stderr,"Example 2:\n");
243: fprintf(stderr,"(Start the ox server): dc1%% ox -ox ~/OpenXM/bin/ox_sm1\n");
244: fprintf(stderr,"(client): dc1%% sm1\n ");
245: fprintf(stderr," (ox.sm1) run ; \n");
246: fprintf(stderr," sm1>[(localhost) 1300 1200] oxconnect /ox.ccc set\n");
1.1 maekawa 247: fprintf(stderr,"\n");
248: }
249:
250: parentServerMain(int fdControl, int fdStream) {
251: int id;
252: int mtag;
253: int size;
254: int n;
255: int r;
256: int message = 1;
257: int controlByteOrder;
1.12 takayama 258: extern OxTerminateMode;
1.1 maekawa 259: extern void myServerExit();
260:
1.12 takayama 261: if (OxTerminateMode) {
262: /*
263: OxTerminateMode cannot be used if you run ox by xterm -exec ox ...
264: */
265: if (fork()) {
266: close(fdControl); close(fdStream);
267: /* Parent */
268: exit(0); /*Tell the caller that launching is successfully finished.*/
269: }
270: }
271:
1.13 ! takayama 272: controlByteOrder = oxTellMyByteOrder(fdControl,fdControl);
1.1 maekawa 273: /* Set the network byte order. */
274: fprintf(stderr,"controlByteOrder=%x\n",controlByteOrder);
275:
276:
277: signal(SIGINT,myServerExit);
278: while(1) {
279: mtag = oxfdGetOXheader(fdControl,&SerialCurrentControl);
280: /* get the message_tag */
281: /* message_body */
282: id = oxfdGetInt32(fdControl); /* get the function_id */
283: if (message) {printf("\n[control] control function_id is %d\n",id);}
284: switch( id ) {
285: case SM_control_kill:
286: if (message) printf("[control] control_kill\n");
287: oxSendResultOfControl(fdControl);
288: sleep(2);
289: myServerExit();
290: break;
291: case SM_control_reset_connection:
292: if (message) printf("[control] control_reset_connection.\n");
293: if (message) printf("Sending the SIGUSR1 signal to %d: ",MyServerPid);
294: r=kill(MyServerPid,SIGUSR1);
295: if (message) printf("Result = %d\n",r);
296: fflush(NULL);
1.7 takayama 297: /* oxSendResultOfControlInt32(fdControl,0); */
1.1 maekawa 298: break;
299: default:
300: fprintf(stderr,"[control] Unknown control message.\n");
301: fprintf(stderr,"Shutdown the server.");
302: myServerExit();
303: break;
304: }
305: }
306: }
307:
308: void myServerExit() {
309: printf("Sending the kill signal to the child.\n");
310: kill(MyServerPid,SIGKILL);
1.12 takayama 311: exit(0);
1.1 maekawa 312: }
313:
314: childServerMain(int fdControl, int fdStream) {
315: int i;
316: close(fdControl); /* close(0); dup(fdStream); */
317: dup2(fdStream,3);
318: dup2(fdStream,4);
1.4 takayama 319: /*close(0);
1.7 takayama 320: #include <sys/param.h>
321: for (i=5; i<NOFILE; i++) close(i);
322: */
1.4 takayama 323: if (!Do_not_use_control_stream_to_tell_no_server) {
1.7 takayama 324: if (findOxServer(ServerName) < 0) {
325: return(-1);
326: }
1.4 takayama 327: }
1.5 takayama 328: fprintf(stderr,"childServerMain: Starting the server %s\n",ServerName); fflush(NULL);
1.1 maekawa 329: if (PacketMonitor) {
330: if (execl(ServerName,ServerName,"-monitor",NULL)) {
331: fprintf(stderr,"%s cannot be executed with -monitor.\n",ServerName);
1.7 takayama 332: fflush(NULL);
333: return(-1);
1.1 maekawa 334: }
335: }else {
336: if (execl(ServerName,ServerName,NULL)) {
337: fprintf(stderr,"%s cannot be executed.\n",ServerName);
1.7 takayama 338: fflush(NULL);
339: return(-1);
1.1 maekawa 340: }
341: }
1.4 takayama 342: /* never reached. */
1.1 maekawa 343: }
344:
345:
346: /* These are dummy. It is defined in stackmachine.c */
347: unlockCtrlCForOx() { ; }
348: restoreLockCtrlCForOx() { ; }
349:
1.4 takayama 350: static int findOxServer(char *server) {
351: char *p;
352: char *p2;
353: char *getenv(char *s);
354: if (strlen(server) == 0) return(-1);
1.10 takayama 355: /* fd = open(server,O_RDONLY); */
1.11 ohara 356: if (access(server,X_OK&R_OK) == 0) {
1.7 takayama 357: fprintf(stderr,"Starting OX server : %s\n",server);
358: return(0);
1.4 takayama 359: }
360: if (server[0] == '/') {
1.7 takayama 361: couldNotFind(server);
362: return(-1);
1.4 takayama 363: }
364: fprintf(stderr,"The server %s was not found. Trying to find it under OpenXM/bin\n",server);
365: p = getenv("OpenXM_HOME");
366: if (p == NULL) {
367: p = "/usr/local/OpenXM";
368: }
369: p2 = (char *) malloc(sizeof(char)*(strlen(p)+strlen("/bin/")+3+strlen(server)));
370: if (p2 == NULL) { fprintf(stderr,"No more memory.\n"); exit(10); }
371: strcpy(p2,p); strcat(p2,"/bin/"); strcat(p2,server);
1.10 takayama 372: /* fd = open(p2,O_RDONLY); */
1.11 ohara 373: if (access(p2,X_OK&R_OK) == 0) {
1.7 takayama 374: fprintf(stderr,"Starting OX server : %s\n",p2);
375: if (strlen(p2) < SERVERNAME_SIZE) strcpy(server,p2);
376: else {
377: couldNotFind("Too long ox server name.");
378: return(-1);
379: }
380: return(0);
1.4 takayama 381: }
382: couldNotFind(p2);
383: return(-1);
384: }
1.1 maekawa 385:
1.4 takayama 386: static void couldNotFind(char *s) {
387: fprintf(stderr,"OX server %s could not be found.\n",s);
388: }
1.1 maekawa 389:
390:
391:
392:
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