Annotation of OpenXM/src/kan96xx/plugin/mytcpio.c, Revision 1.13
1.13 ! takayama 1: /* $OpenXM: OpenXM/src/kan96xx/plugin/mytcpio.c,v 1.12 2003/09/16 02:57:39 takayama Exp $ */
1.1 maekawa 2: #include <stdio.h>
3: #include <sys/types.h>
4: #include <sys/socket.h>
5: #include <sys/time.h>
6: #include <netinet/in.h>
7: #include <netdb.h>
8: #include <setjmp.h>
1.13 ! takayama 9: #include <errno.h>
1.1 maekawa 10: /* -lnsl -lsocket /usr/ucblib/libucb.a */
11: #include "ox_kan.h"
12: /*
13: MyEnv_oxmisc is used in oxmisc.c.
14: It cannot be put in oxmisc.c for the case of sun.
15: */
16: #if defined(sun)
17: int MyEnv_oxmisc[2000];
18: #else
1.6 takayama 19: #if defined(__CYGWIN__)
20: sigjmp_buf MyEnv_oxmisc; /* may cause a trouble in Solaris. */
21: #else
1.1 maekawa 22: jmp_buf MyEnv_oxmisc; /* may cause a trouble in Solaris. */
1.6 takayama 23: #endif
1.1 maekawa 24: #endif
25:
26: #define READBUFSIZE 10000
1.7 takayama 27: #define MAX_LISTEN_QUEUE 3
1.1 maekawa 28: static void errorMsg1s(char *s) {
29: fprintf(stderr,"%s\n",s);
30: }
31:
1.3 takayama 32: #define SET_TCPIOERROR { if (TcpioError == NULL) TcpioError = stdout; }
33: FILE *TcpioError = NULL;
1.1 maekawa 34: int OpenedSocket = 0;
35: extern int Quiet;
36:
37: socketOpen(char *serverName,int portNumber) {
38: static struct hostent *myhost;
39: static struct sockaddr_in me;
40: static int s_waiting;
41: static int on;
42: int tt;
43:
1.3 takayama 44: SET_TCPIOERROR;
1.1 maekawa 45: fprintf(TcpioError,"Hello from open. serverName is %s and portnumber is %d\n",
1.5 takayama 46: serverName,portNumber);
1.1 maekawa 47: if ((myhost = gethostbyname(serverName)) == NULL) {
48: errorMsg1s("Bad server name.");
49: return(-1);
50: }
51: bzero((char *)&me,sizeof(me));
52: me.sin_family = AF_INET;
53: me.sin_port = htons(portNumber);
54: bcopy(myhost->h_addr,
1.5 takayama 55: &me.sin_addr,myhost->h_length);
1.1 maekawa 56:
57: if ((s_waiting = socket(AF_INET,SOCK_STREAM,0)) < 0) {
58: errorMsg1s("Socket allocation is failed.");
59: return(-1);
60: }
61:
62: on=1; setsockopt(s_waiting,SOL_SOCKET,SO_REUSEADDR,&on,sizeof(on));
63: /* important */
64: if ((tt = bind(s_waiting,(struct sockaddr *) &me,sizeof(me))) == -1) {
65: fprintf(TcpioError,"Bind error. Error no is %d. See /usr/include/sys/errno.h. (asm/errno.h)\n",errno);
66: errorMsg1s("cannot bind");
67: return(-1);
68: }
69: /* printf("bind returns %d\n",tt); */
70: tt = sizeof(me);
71: if (getsockname(s_waiting,(struct sockaddr *)&me,&tt) < 0) {
72: fprintf(TcpioError,"getsockname error. Error no is %d. See /usr/include/sys/errno.h (asm/errno.h).\n",errno);
73: errorMsg1s("cannot getsockname");
74: return(-1);
75: }
76:
1.7 takayama 77: if (listen(s_waiting,MAX_LISTEN_QUEUE) < 0) {
1.1 maekawa 78: errorMsg1s("Listen failed");
79: return(-1);
80: }
81: fprintf(TcpioError,"Done the initialization. port =%d\n",ntohs(me.sin_port));
82: OpenedSocket = ntohs(me.sin_port);
83: return(s_waiting);
84: }
85:
86:
87: socketAccept(int snum) {
88: int s, news;
89:
1.3 takayama 90: SET_TCPIOERROR;
1.1 maekawa 91: s = snum;
92: fprintf(TcpioError,"Trying to accept... "); fflush(TcpioError);
93: if ((news = accept(s,NULL,NULL)) < 0) {
1.12 takayama 94: errorMsg1s("Error in accept. Retrying (socketAccept).");
95: /* Code added for strange behavior on cygwin. */
96: if ((news = accept(s,NULL,NULL)) < 0) {
97: errorMsg1s("Error in accept. Retry failed.");
98: return (-1);
99: }
1.1 maekawa 100: }
101: fprintf(TcpioError,"Accepted.\n"); fflush(TcpioError);
102: if (close(s) < 0) {
103: errorMsg1s("Error in closing the old socket.");
104: return(-1);
105: }
106: return(news);
107: }
108:
109: socketAcceptLocal(int snum) {
110: int s, news;
111: struct sockaddr peer;
112: int len;
113: int i;
1.3 takayama 114:
115: SET_TCPIOERROR;
1.1 maekawa 116: s = snum;
117: fprintf(TcpioError,"Trying to accept from localhost... "); fflush(TcpioError);
118: len = sizeof(struct sockaddr);
119: if ((news = accept(s,&peer,&len)) < 0) {
1.10 takayama 120: errorMsg1s("Error in accept. Retrying");
1.11 takayama 121: /* Code added for strange behavior on cygwin. */
122: if ((news = accept(s,&peer,&len)) < 0) {
1.12 takayama 123: errorMsg1s("Error in accept. Retry failed.");
1.11 takayama 124: return (-1);
125: }
1.1 maekawa 126: }
127:
128: len = sizeof(struct sockaddr);
129: getpeername(news,&peer,&len);
130: printf("len= %d\n",len);
131: for (i=0; i<len; i++) {
132: printf(" %x ",peer.sa_data[i]);
133: }
134: printf("\n");
135: if (peer.sa_data[2] == 0x7f && peer.sa_data[3] == 0 &&
136: peer.sa_data[4] == 0 && peer.sa_data[5] == 1) {
1.4 takayama 137: fprintf(stderr,"Authentication: localhost is allowed to be accepted.\n");
1.1 maekawa 138: }else{
1.4 takayama 139: errorMsg1s("Authentication: The connection is not from the localhost.");
1.1 maekawa 140: close(s);
141: fprintf(stderr,"The connection is refused.");
142: return(-1);
143: }
144:
145: fprintf(TcpioError,"Accepted.\n"); fflush(TcpioError);
146: if (close(s) < 0) {
147: errorMsg1s("Error in closing the old socket.");
148: return(-1);
149: }
1.8 takayama 150: return(news);
151: }
152:
153: /* It does not close the socket for listening. */
154: socketAcceptLocal2(int snum) {
155: int s, news;
156: struct sockaddr peer;
157: int len;
158: int i;
159:
160: SET_TCPIOERROR;
161: s = snum;
162: fprintf(TcpioError,"Trying to accept from localhost... "); fflush(TcpioError);
163: len = sizeof(struct sockaddr);
164: if ((news = accept(s,&peer,&len)) < 0) {
1.12 takayama 165: errorMsg1s("Error in accept. Retrying (socketAcceptLocal2).");
166: /* Code added for strange behavior on cygwin. */
167: if ((news = accept(s,&peer,&len)) < 0) {
168: errorMsg1s("Error in accept. Retry failed.");
169: return (-1);
170: }
1.8 takayama 171: }
172:
173: len = sizeof(struct sockaddr);
174: getpeername(news,&peer,&len);
175: printf("len= %d\n",len);
176: for (i=0; i<len; i++) {
177: printf(" %x ",peer.sa_data[i]);
178: }
179: printf("\n");
180: if (peer.sa_data[2] == 0x7f && peer.sa_data[3] == 0 &&
181: peer.sa_data[4] == 0 && peer.sa_data[5] == 1) {
182: fprintf(stderr,"Authentication: localhost is allowed to be accepted.\n");
183: }else{
184: errorMsg1s("Authentication: The connection is not from the localhost.");
185: fprintf(stderr,"The connection is refused.");
186: return(-1);
187: }
188:
189: fprintf(TcpioError,"Accepted.\n"); fflush(TcpioError);
1.1 maekawa 190: return(news);
191: }
192:
193: int oxSocketSelect0(int fd,int t) {
194: fd_set readfds;
195: struct timeval timeout;
196: int debug = 0;
1.3 takayama 197: SET_TCPIOERROR;
1.1 maekawa 198: FD_ZERO(&readfds);
199: FD_SET(fd,&readfds);
200: timeout.tv_sec = 0;
201: timeout.tv_usec = (long) t;
202: if (t >= 0) {
203: if (debug) {printf("select t>=0 for fd = %d\n",fd); fflush(NULL);}
204: if (select(fd+1,&readfds,(fd_set *)NULL,(fd_set *)NULL,&timeout)<0) {
205: /* It must be fd+1 !, Not fd. */
206: fprintf(TcpioError,"select (non-block) error. Error no is %d. See /usr/include/sys/errno.h (asm/errno.h).\n",errno);
207: errorMsg1s("oxSocketSelect0() : select failed.");
208: return(0);
209: }
210: if(debug){printf("Return from select t>=0 for fd = %d\n",fd);fflush(NULL);}
211: }else{ /* block */
212: if (select(fd+1,&readfds,(fd_set *)NULL,(fd_set *)NULL,(struct timeval *)NULL)<0) {
213: fprintf(TcpioError,"select (block) error. Error no is %d. See /usr/include/sys/errno.h (asm/errno.h).\n",errno);
214: errorMsg1s("socketSelect0() : select failed.");
215: return(0);
216: }
217: }
218: if (FD_ISSET(fd,&readfds)) return(1);
219: else return(0);
220: }
221:
222: oxSocketMultiSelect(int sid[],int size,int t,int result[])
223: {
224: int i,fd,p;
225: fd_set readfds;
226: struct timeval timeout;
227: int isdata = 0;
228:
1.3 takayama 229: SET_TCPIOERROR;
1.1 maekawa 230: FD_ZERO(&readfds);
231: timeout.tv_sec = 0;
232: timeout.tv_usec = (long)t;
233:
234: fd = 0;
235:
236: for (i=0; i<size; i++) {
237: if (sid[i] >= 0) {
238: p = sid[i];
239: if (p > fd) fd = p;
240: FD_SET(p,&readfds);
241: /* printf("p = %d, fd=%d",p,fd); */
242: }
243: }
244:
245: /* printf("MultiSelect..\n"); fflush(NULL); */
246: if (t >= 0) {
247: if (select(fd+1,&readfds,(fd_set *)NULL,(fd_set *)NULL,&timeout)<0) {
248: /* It must be fd+1 !, Not fd. */
249: fprintf(TcpioError,"Select error. Error no is %d. See /usr/include/sys/errno.h (asm/errno.h).\n",errno);
250: errorMsg1s("oxSocketMultiSelect() : select failed.");
251: return(0);
252: }
253: }else{ /* block */
254: if (select(fd+1,&readfds,(fd_set *)NULL,(fd_set *)NULL,(struct timeval *)NULL)<0) {
255: fprintf(TcpioError,"Select error. Error no is %d. See /usr/include/sys/errno.h (asm/errno.h).\n",errno);
256: errorMsg1s("oxSocketMultiSelect() : (block) select failed.");
257: return(0);
258: }
259: }
260: /* printf("Done. MultiSelect.\n"); fflush(NULL); */
261: for (i=0; i<size; i++) {
262: p = sid[i];
263: if ((sid[i] >=0) && FD_ISSET(p,&readfds)) {
264: result[i] = 1; isdata = 1;
265: }else{
266: result[i] = 0;
267: }
268: }
269: return(isdata);
270: }
271:
272:
273: socketConnect(char *serverName,int portNumber) {
274: struct hostent *servhost;
275: struct sockaddr_in server;
276: int socketid;
277: int on;
278:
1.3 takayama 279: SET_TCPIOERROR;
1.1 maekawa 280: if ((servhost = gethostbyname(serverName)) == NULL) {
281: errorMsg1s("bad server name.\n");
282: return(-1);
283: }
284: bzero((char *)&server,sizeof(server));
285: server.sin_family = AF_INET;
286: server.sin_port = htons(portNumber);
287: bcopy(servhost->h_addr,
1.5 takayama 288: (char *)&server.sin_addr,servhost->h_length);
1.1 maekawa 289:
290: if ((socketid = socket(AF_INET,SOCK_STREAM,0)) <0) {
291: errorMsg1s("socket allocation is failed.\n");
292: return(-1);
293: }
294: /* on=1; setsockopt(socketid,SOL_SOCKET,SO_REUSEADDR,&on,sizeof(on)); */
295: if (!Quiet) {
296: fprintf(TcpioError,"Trying to connect port %d, ip=%x\n",ntohs(server.sin_port),server.sin_addr);
297: }
298: if (connect(socketid,(struct sockaddr *)&server,sizeof(server)) == -1) {
299: errorMsg1s("cannot connect");
300: return(-1);
301: }
302: if (!Quiet) fprintf(TcpioError,"connected.\n");
303: return(socketid);
304: }
305:
306: socketConnectWithPass(char *servername,int port,char *pass)
307: {
308: int fd;
309: int m;
1.3 takayama 310: SET_TCPIOERROR;
1.1 maekawa 311: fd = socketConnect(servername,port);
1.9 takayama 312: if ((pass == NULL) && (fd >= 0)) return fd;
313: if ((pass == NULL) && (fd < 0)) return -1;
1.1 maekawa 314: if (fd >= 0) {
1.2 takayama 315: m = write(fd,pass,strlen(pass)+1);
316: if (m != strlen(pass)+1) {
1.1 maekawa 317: fprintf(TcpioError,"Fail to send password to fd=%d.\n",fd);
318: return(-1);
319: }
320: return(fd);
321: }else{
322: return(-1);
323: }
324: }
325:
FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>
![[BACK]](/icons/cvsweb/back.gif){kind=icon}
Return to mytcpio.c CVS log ![[TXT]](/icons/cvsweb/text.gif){kind=icon}
![[DIR]](/icons/cvsweb/dir.gif){kind=icon}
Up to [local] / OpenXM / src / kan96xx / plugin