Annotation of OpenXM/src/kan96xx/plugin/mytcpio.c, Revision 1.16
1.16 ! ohara 1: /* $OpenXM: OpenXM/src/kan96xx/plugin/mytcpio.c,v 1.15 2004/11/23 05:28:19 takayama Exp $ */
1.1 maekawa 2: #include <stdio.h>
1.16 ! ohara 3: #include <string.h>
1.1 maekawa 4: #include <sys/types.h>
5: #include <sys/socket.h>
6: #include <sys/time.h>
7: #include <netinet/in.h>
8: #include <netdb.h>
9: #include <setjmp.h>
1.13 takayama 10: #include <errno.h>
1.1 maekawa 11: /* -lnsl -lsocket /usr/ucblib/libucb.a */
12: #include "ox_kan.h"
13: /*
14: MyEnv_oxmisc is used in oxmisc.c.
15: It cannot be put in oxmisc.c for the case of sun.
16: */
17: #if defined(sun)
18: int MyEnv_oxmisc[2000];
19: #else
1.6 takayama 20: #if defined(__CYGWIN__)
21: sigjmp_buf MyEnv_oxmisc; /* may cause a trouble in Solaris. */
22: #else
1.1 maekawa 23: jmp_buf MyEnv_oxmisc; /* may cause a trouble in Solaris. */
1.6 takayama 24: #endif
1.1 maekawa 25: #endif
26:
27: #define READBUFSIZE 10000
1.7 takayama 28: #define MAX_LISTEN_QUEUE 3
1.1 maekawa 29: static void errorMsg1s(char *s) {
30: fprintf(stderr,"%s\n",s);
31: }
32:
1.3 takayama 33: #define SET_TCPIOERROR { if (TcpioError == NULL) TcpioError = stdout; }
34: FILE *TcpioError = NULL;
1.1 maekawa 35: int OpenedSocket = 0;
36: extern int Quiet;
37:
38: socketOpen(char *serverName,int portNumber) {
39: static struct hostent *myhost;
40: static struct sockaddr_in me;
41: static int s_waiting;
42: static int on;
43: int tt;
44:
1.3 takayama 45: SET_TCPIOERROR;
1.14 takayama 46: if (!Quiet) fprintf(TcpioError,"Hello from open. serverName is %s and portnumber is %d\n",
1.5 takayama 47: serverName,portNumber);
1.1 maekawa 48: if ((myhost = gethostbyname(serverName)) == NULL) {
49: errorMsg1s("Bad server name.");
50: return(-1);
51: }
52: bzero((char *)&me,sizeof(me));
53: me.sin_family = AF_INET;
54: me.sin_port = htons(portNumber);
55: bcopy(myhost->h_addr,
1.5 takayama 56: &me.sin_addr,myhost->h_length);
1.1 maekawa 57:
58: if ((s_waiting = socket(AF_INET,SOCK_STREAM,0)) < 0) {
59: errorMsg1s("Socket allocation is failed.");
60: return(-1);
61: }
62:
63: on=1; setsockopt(s_waiting,SOL_SOCKET,SO_REUSEADDR,&on,sizeof(on));
64: /* important */
65: if ((tt = bind(s_waiting,(struct sockaddr *) &me,sizeof(me))) == -1) {
66: fprintf(TcpioError,"Bind error. Error no is %d. See /usr/include/sys/errno.h. (asm/errno.h)\n",errno);
67: errorMsg1s("cannot bind");
68: return(-1);
69: }
70: /* printf("bind returns %d\n",tt); */
71: tt = sizeof(me);
72: if (getsockname(s_waiting,(struct sockaddr *)&me,&tt) < 0) {
73: fprintf(TcpioError,"getsockname error. Error no is %d. See /usr/include/sys/errno.h (asm/errno.h).\n",errno);
74: errorMsg1s("cannot getsockname");
75: return(-1);
76: }
77:
1.7 takayama 78: if (listen(s_waiting,MAX_LISTEN_QUEUE) < 0) {
1.1 maekawa 79: errorMsg1s("Listen failed");
80: return(-1);
81: }
1.14 takayama 82: if (!Quiet) fprintf(TcpioError,"Done the initialization. port =%d\n",ntohs(me.sin_port));
1.1 maekawa 83: OpenedSocket = ntohs(me.sin_port);
84: return(s_waiting);
85: }
86:
87:
88: socketAccept(int snum) {
89: int s, news;
90:
1.3 takayama 91: SET_TCPIOERROR;
1.1 maekawa 92: s = snum;
1.15 takayama 93: if (!Quiet) {fprintf(TcpioError,"Trying to accept... "); fflush(TcpioError);}
1.1 maekawa 94: if ((news = accept(s,NULL,NULL)) < 0) {
1.12 takayama 95: errorMsg1s("Error in accept. Retrying (socketAccept).");
96: /* Code added for strange behavior on cygwin. */
97: if ((news = accept(s,NULL,NULL)) < 0) {
98: errorMsg1s("Error in accept. Retry failed.");
99: return (-1);
100: }
1.1 maekawa 101: }
1.15 takayama 102: if (!Quiet) {fprintf(TcpioError,"Accepted.\n"); fflush(TcpioError);}
1.1 maekawa 103: if (close(s) < 0) {
104: errorMsg1s("Error in closing the old socket.");
105: return(-1);
106: }
107: return(news);
108: }
109:
110: socketAcceptLocal(int snum) {
111: int s, news;
112: struct sockaddr peer;
113: int len;
114: int i;
1.3 takayama 115:
116: SET_TCPIOERROR;
1.1 maekawa 117: s = snum;
1.15 takayama 118: if (!Quiet) {fprintf(TcpioError,"Trying to accept from localhost... "); fflush(TcpioError);}
1.1 maekawa 119: len = sizeof(struct sockaddr);
120: if ((news = accept(s,&peer,&len)) < 0) {
1.10 takayama 121: errorMsg1s("Error in accept. Retrying");
1.11 takayama 122: /* Code added for strange behavior on cygwin. */
123: if ((news = accept(s,&peer,&len)) < 0) {
1.12 takayama 124: errorMsg1s("Error in accept. Retry failed.");
1.11 takayama 125: return (-1);
126: }
1.1 maekawa 127: }
128:
129: len = sizeof(struct sockaddr);
130: getpeername(news,&peer,&len);
1.14 takayama 131: if (!Quiet) printf("len= %d\n",len);
1.1 maekawa 132: for (i=0; i<len; i++) {
1.14 takayama 133: if (!Quiet) printf(" %x ",peer.sa_data[i]);
1.1 maekawa 134: }
1.15 takayama 135: if (!Quiet) printf("\n");
1.1 maekawa 136: if (peer.sa_data[2] == 0x7f && peer.sa_data[3] == 0 &&
137: peer.sa_data[4] == 0 && peer.sa_data[5] == 1) {
1.14 takayama 138: if (!Quiet) fprintf(stderr,"Authentication: localhost is allowed to be accepted.\n");
1.1 maekawa 139: }else{
1.4 takayama 140: errorMsg1s("Authentication: The connection is not from the localhost.");
1.1 maekawa 141: close(s);
142: fprintf(stderr,"The connection is refused.");
143: return(-1);
144: }
145:
1.15 takayama 146: if (!Quiet) {fprintf(TcpioError,"Accepted.\n"); fflush(TcpioError);}
1.1 maekawa 147: if (close(s) < 0) {
148: errorMsg1s("Error in closing the old socket.");
149: return(-1);
150: }
1.8 takayama 151: return(news);
152: }
153:
154: /* It does not close the socket for listening. */
155: socketAcceptLocal2(int snum) {
156: int s, news;
157: struct sockaddr peer;
158: int len;
159: int i;
160:
161: SET_TCPIOERROR;
162: s = snum;
1.15 takayama 163: if (!Quiet) {fprintf(TcpioError,"Trying to accept from localhost... "); fflush(TcpioError);}
1.8 takayama 164: len = sizeof(struct sockaddr);
165: if ((news = accept(s,&peer,&len)) < 0) {
1.12 takayama 166: errorMsg1s("Error in accept. Retrying (socketAcceptLocal2).");
167: /* Code added for strange behavior on cygwin. */
168: if ((news = accept(s,&peer,&len)) < 0) {
169: errorMsg1s("Error in accept. Retry failed.");
170: return (-1);
171: }
1.8 takayama 172: }
173:
174: len = sizeof(struct sockaddr);
175: getpeername(news,&peer,&len);
1.14 takayama 176: if (!Quiet) printf("len= %d\n",len);
1.8 takayama 177: for (i=0; i<len; i++) {
1.14 takayama 178: if (!Quiet) printf(" %x ",peer.sa_data[i]);
1.8 takayama 179: }
1.15 takayama 180: if (!Quiet) printf("\n");
1.8 takayama 181: if (peer.sa_data[2] == 0x7f && peer.sa_data[3] == 0 &&
182: peer.sa_data[4] == 0 && peer.sa_data[5] == 1) {
1.14 takayama 183: if (!Quiet) fprintf(stderr,"Authentication: localhost is allowed to be accepted.\n");
1.8 takayama 184: }else{
185: errorMsg1s("Authentication: The connection is not from the localhost.");
186: fprintf(stderr,"The connection is refused.");
187: return(-1);
188: }
189:
1.15 takayama 190: if (!Quiet) {fprintf(TcpioError,"Accepted.\n"); fflush(TcpioError);}
1.1 maekawa 191: return(news);
192: }
193:
194: int oxSocketSelect0(int fd,int t) {
195: fd_set readfds;
196: struct timeval timeout;
197: int debug = 0;
1.3 takayama 198: SET_TCPIOERROR;
1.1 maekawa 199: FD_ZERO(&readfds);
200: FD_SET(fd,&readfds);
201: timeout.tv_sec = 0;
202: timeout.tv_usec = (long) t;
203: if (t >= 0) {
204: if (debug) {printf("select t>=0 for fd = %d\n",fd); fflush(NULL);}
205: if (select(fd+1,&readfds,(fd_set *)NULL,(fd_set *)NULL,&timeout)<0) {
206: /* It must be fd+1 !, Not fd. */
207: fprintf(TcpioError,"select (non-block) error. Error no is %d. See /usr/include/sys/errno.h (asm/errno.h).\n",errno);
208: errorMsg1s("oxSocketSelect0() : select failed.");
209: return(0);
210: }
211: if(debug){printf("Return from select t>=0 for fd = %d\n",fd);fflush(NULL);}
212: }else{ /* block */
213: if (select(fd+1,&readfds,(fd_set *)NULL,(fd_set *)NULL,(struct timeval *)NULL)<0) {
214: fprintf(TcpioError,"select (block) error. Error no is %d. See /usr/include/sys/errno.h (asm/errno.h).\n",errno);
215: errorMsg1s("socketSelect0() : select failed.");
216: return(0);
217: }
218: }
219: if (FD_ISSET(fd,&readfds)) return(1);
220: else return(0);
221: }
222:
223: oxSocketMultiSelect(int sid[],int size,int t,int result[])
224: {
225: int i,fd,p;
226: fd_set readfds;
227: struct timeval timeout;
228: int isdata = 0;
229:
1.3 takayama 230: SET_TCPIOERROR;
1.1 maekawa 231: FD_ZERO(&readfds);
232: timeout.tv_sec = 0;
233: timeout.tv_usec = (long)t;
234:
235: fd = 0;
236:
237: for (i=0; i<size; i++) {
238: if (sid[i] >= 0) {
239: p = sid[i];
240: if (p > fd) fd = p;
241: FD_SET(p,&readfds);
242: /* printf("p = %d, fd=%d",p,fd); */
243: }
244: }
245:
246: /* printf("MultiSelect..\n"); fflush(NULL); */
247: if (t >= 0) {
248: if (select(fd+1,&readfds,(fd_set *)NULL,(fd_set *)NULL,&timeout)<0) {
249: /* It must be fd+1 !, Not fd. */
250: fprintf(TcpioError,"Select error. Error no is %d. See /usr/include/sys/errno.h (asm/errno.h).\n",errno);
251: errorMsg1s("oxSocketMultiSelect() : select failed.");
252: return(0);
253: }
254: }else{ /* block */
255: if (select(fd+1,&readfds,(fd_set *)NULL,(fd_set *)NULL,(struct timeval *)NULL)<0) {
256: fprintf(TcpioError,"Select error. Error no is %d. See /usr/include/sys/errno.h (asm/errno.h).\n",errno);
257: errorMsg1s("oxSocketMultiSelect() : (block) select failed.");
258: return(0);
259: }
260: }
261: /* printf("Done. MultiSelect.\n"); fflush(NULL); */
262: for (i=0; i<size; i++) {
263: p = sid[i];
264: if ((sid[i] >=0) && FD_ISSET(p,&readfds)) {
265: result[i] = 1; isdata = 1;
266: }else{
267: result[i] = 0;
268: }
269: }
270: return(isdata);
271: }
272:
273:
274: socketConnect(char *serverName,int portNumber) {
275: struct hostent *servhost;
276: struct sockaddr_in server;
277: int socketid;
278: int on;
279:
1.3 takayama 280: SET_TCPIOERROR;
1.1 maekawa 281: if ((servhost = gethostbyname(serverName)) == NULL) {
282: errorMsg1s("bad server name.\n");
283: return(-1);
284: }
285: bzero((char *)&server,sizeof(server));
286: server.sin_family = AF_INET;
287: server.sin_port = htons(portNumber);
288: bcopy(servhost->h_addr,
1.5 takayama 289: (char *)&server.sin_addr,servhost->h_length);
1.1 maekawa 290:
291: if ((socketid = socket(AF_INET,SOCK_STREAM,0)) <0) {
292: errorMsg1s("socket allocation is failed.\n");
293: return(-1);
294: }
295: /* on=1; setsockopt(socketid,SOL_SOCKET,SO_REUSEADDR,&on,sizeof(on)); */
296: if (!Quiet) {
297: fprintf(TcpioError,"Trying to connect port %d, ip=%x\n",ntohs(server.sin_port),server.sin_addr);
298: }
299: if (connect(socketid,(struct sockaddr *)&server,sizeof(server)) == -1) {
300: errorMsg1s("cannot connect");
301: return(-1);
302: }
303: if (!Quiet) fprintf(TcpioError,"connected.\n");
304: return(socketid);
305: }
306:
307: socketConnectWithPass(char *servername,int port,char *pass)
308: {
309: int fd;
310: int m;
1.3 takayama 311: SET_TCPIOERROR;
1.1 maekawa 312: fd = socketConnect(servername,port);
1.9 takayama 313: if ((pass == NULL) && (fd >= 0)) return fd;
314: if ((pass == NULL) && (fd < 0)) return -1;
1.1 maekawa 315: if (fd >= 0) {
1.2 takayama 316: m = write(fd,pass,strlen(pass)+1);
317: if (m != strlen(pass)+1) {
1.1 maekawa 318: fprintf(TcpioError,"Fail to send password to fd=%d.\n",fd);
319: return(-1);
320: }
321: return(fd);
322: }else{
323: return(-1);
324: }
325: }
326:
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