Annotation of OpenXM/src/kan96xx/plugin/mytcpio.c, Revision 1.1.1.1
1.1 maekawa 1: #include <stdio.h>
2: #include <sys/types.h>
3: #include <sys/socket.h>
4: #include <sys/time.h>
5: #include <netinet/in.h>
6: #include <netdb.h>
7: #include <setjmp.h>
8: /* -lnsl -lsocket /usr/ucblib/libucb.a */
9: #include "ox_kan.h"
10: /*
11: MyEnv_oxmisc is used in oxmisc.c.
12: It cannot be put in oxmisc.c for the case of sun.
13: */
14: #if defined(sun)
15: int MyEnv_oxmisc[2000];
16: #else
17: jmp_buf MyEnv_oxmisc; /* may cause a trouble in Solaris. */
18: #endif
19:
20: #define READBUFSIZE 10000
21: static void errorMsg1s(char *s) {
22: fprintf(stderr,"%s\n",s);
23: }
24:
25: FILE *TcpioError = stdout;
26: int OpenedSocket = 0;
27: extern int Quiet;
28:
29: socketOpen(char *serverName,int portNumber) {
30: static struct hostent *myhost;
31: static struct sockaddr_in me;
32: static int s_waiting;
33: static int on;
34: extern int errno;
35: int tt;
36:
37:
38: fprintf(TcpioError,"Hello from open. serverName is %s and portnumber is %d\n",
39: serverName,portNumber);
40: if ((myhost = gethostbyname(serverName)) == NULL) {
41: errorMsg1s("Bad server name.");
42: return(-1);
43: }
44: bzero((char *)&me,sizeof(me));
45: me.sin_family = AF_INET;
46: me.sin_port = htons(portNumber);
47: bcopy(myhost->h_addr,
48: &me.sin_addr,myhost->h_length);
49:
50: if ((s_waiting = socket(AF_INET,SOCK_STREAM,0)) < 0) {
51: errorMsg1s("Socket allocation is failed.");
52: return(-1);
53: }
54:
55: on=1; setsockopt(s_waiting,SOL_SOCKET,SO_REUSEADDR,&on,sizeof(on));
56: /* important */
57: if ((tt = bind(s_waiting,(struct sockaddr *) &me,sizeof(me))) == -1) {
58: fprintf(TcpioError,"Bind error. Error no is %d. See /usr/include/sys/errno.h. (asm/errno.h)\n",errno);
59: errorMsg1s("cannot bind");
60: return(-1);
61: }
62: /* printf("bind returns %d\n",tt); */
63: tt = sizeof(me);
64: if (getsockname(s_waiting,(struct sockaddr *)&me,&tt) < 0) {
65: fprintf(TcpioError,"getsockname error. Error no is %d. See /usr/include/sys/errno.h (asm/errno.h).\n",errno);
66: errorMsg1s("cannot getsockname");
67: return(-1);
68: }
69:
70: if (listen(s_waiting,1) < 0) {
71: errorMsg1s("Listen failed");
72: return(-1);
73: }
74: fprintf(TcpioError,"Done the initialization. port =%d\n",ntohs(me.sin_port));
75: OpenedSocket = ntohs(me.sin_port);
76: return(s_waiting);
77: }
78:
79:
80: socketAccept(int snum) {
81: int s, news;
82:
83: s = snum;
84: fprintf(TcpioError,"Trying to accept... "); fflush(TcpioError);
85: if ((news = accept(s,NULL,NULL)) < 0) {
86: errorMsg1s("Error in accept.");
87: return(-1);
88: }
89: fprintf(TcpioError,"Accepted.\n"); fflush(TcpioError);
90: if (close(s) < 0) {
91: errorMsg1s("Error in closing the old socket.");
92: return(-1);
93: }
94: return(news);
95: }
96:
97: socketAcceptLocal(int snum) {
98: int s, news;
99: struct sockaddr peer;
100: int len;
101: int i;
102:
103: s = snum;
104: fprintf(TcpioError,"Trying to accept from localhost... "); fflush(TcpioError);
105: len = sizeof(struct sockaddr);
106: if ((news = accept(s,&peer,&len)) < 0) {
107: errorMsg1s("Error in accept.");
108: return(-1);
109: }
110:
111: len = sizeof(struct sockaddr);
112: getpeername(news,&peer,&len);
113: printf("len= %d\n",len);
114: for (i=0; i<len; i++) {
115: printf(" %x ",peer.sa_data[i]);
116: }
117: printf("\n");
118: if (peer.sa_data[2] == 0x7f && peer.sa_data[3] == 0 &&
119: peer.sa_data[4] == 0 && peer.sa_data[5] == 1) {
120: fprintf(stderr,"Authentification: localhost is allowed to be accepted.\n");
121: }else{
122: errorMsg1s("Authentification: The connection is not from the localhost.");
123: close(s);
124: fprintf(stderr,"The connection is refused.");
125: return(-1);
126: }
127:
128: fprintf(TcpioError,"Accepted.\n"); fflush(TcpioError);
129: if (close(s) < 0) {
130: errorMsg1s("Error in closing the old socket.");
131: return(-1);
132: }
133: return(news);
134: }
135:
136: int oxSocketSelect0(int fd,int t) {
137: fd_set readfds;
138: struct timeval timeout;
139: int debug = 0;
140: extern int errno;
141: FD_ZERO(&readfds);
142: FD_SET(fd,&readfds);
143: timeout.tv_sec = 0;
144: timeout.tv_usec = (long) t;
145: if (t >= 0) {
146: if (debug) {printf("select t>=0 for fd = %d\n",fd); fflush(NULL);}
147: if (select(fd+1,&readfds,(fd_set *)NULL,(fd_set *)NULL,&timeout)<0) {
148: /* It must be fd+1 !, Not fd. */
149: fprintf(TcpioError,"select (non-block) error. Error no is %d. See /usr/include/sys/errno.h (asm/errno.h).\n",errno);
150: errorMsg1s("oxSocketSelect0() : select failed.");
151: return(0);
152: }
153: if(debug){printf("Return from select t>=0 for fd = %d\n",fd);fflush(NULL);}
154: }else{ /* block */
155: if (select(fd+1,&readfds,(fd_set *)NULL,(fd_set *)NULL,(struct timeval *)NULL)<0) {
156: fprintf(TcpioError,"select (block) error. Error no is %d. See /usr/include/sys/errno.h (asm/errno.h).\n",errno);
157: errorMsg1s("socketSelect0() : select failed.");
158: return(0);
159: }
160: }
161: if (FD_ISSET(fd,&readfds)) return(1);
162: else return(0);
163: }
164:
165: oxSocketMultiSelect(int sid[],int size,int t,int result[])
166: {
167: int i,fd,p;
168: fd_set readfds;
169: struct timeval timeout;
170: int isdata = 0;
171: extern errno;
172:
173: FD_ZERO(&readfds);
174: timeout.tv_sec = 0;
175: timeout.tv_usec = (long)t;
176:
177: fd = 0;
178:
179: for (i=0; i<size; i++) {
180: if (sid[i] >= 0) {
181: p = sid[i];
182: if (p > fd) fd = p;
183: FD_SET(p,&readfds);
184: /* printf("p = %d, fd=%d",p,fd); */
185: }
186: }
187:
188: /* printf("MultiSelect..\n"); fflush(NULL); */
189: if (t >= 0) {
190: if (select(fd+1,&readfds,(fd_set *)NULL,(fd_set *)NULL,&timeout)<0) {
191: /* It must be fd+1 !, Not fd. */
192: fprintf(TcpioError,"Select error. Error no is %d. See /usr/include/sys/errno.h (asm/errno.h).\n",errno);
193: errorMsg1s("oxSocketMultiSelect() : select failed.");
194: return(0);
195: }
196: }else{ /* block */
197: if (select(fd+1,&readfds,(fd_set *)NULL,(fd_set *)NULL,(struct timeval *)NULL)<0) {
198: fprintf(TcpioError,"Select error. Error no is %d. See /usr/include/sys/errno.h (asm/errno.h).\n",errno);
199: errorMsg1s("oxSocketMultiSelect() : (block) select failed.");
200: return(0);
201: }
202: }
203: /* printf("Done. MultiSelect.\n"); fflush(NULL); */
204: for (i=0; i<size; i++) {
205: p = sid[i];
206: if ((sid[i] >=0) && FD_ISSET(p,&readfds)) {
207: result[i] = 1; isdata = 1;
208: }else{
209: result[i] = 0;
210: }
211: }
212: return(isdata);
213: }
214:
215:
216: socketConnect(char *serverName,int portNumber) {
217: struct hostent *servhost;
218: struct sockaddr_in server;
219: int socketid;
220: int on;
221:
222: if ((servhost = gethostbyname(serverName)) == NULL) {
223: errorMsg1s("bad server name.\n");
224: return(-1);
225: }
226: bzero((char *)&server,sizeof(server));
227: server.sin_family = AF_INET;
228: server.sin_port = htons(portNumber);
229: bcopy(servhost->h_addr,
230: (char *)&server.sin_addr,servhost->h_length);
231:
232: if ((socketid = socket(AF_INET,SOCK_STREAM,0)) <0) {
233: errorMsg1s("socket allocation is failed.\n");
234: return(-1);
235: }
236: /* on=1; setsockopt(socketid,SOL_SOCKET,SO_REUSEADDR,&on,sizeof(on)); */
237: if (!Quiet) {
238: fprintf(TcpioError,"Trying to connect port %d, ip=%x\n",ntohs(server.sin_port),server.sin_addr);
239: }
240: if (connect(socketid,(struct sockaddr *)&server,sizeof(server)) == -1) {
241: errorMsg1s("cannot connect");
242: return(-1);
243: }
244: if (!Quiet) fprintf(TcpioError,"connected.\n");
245: return(socketid);
246: }
247:
248: socketConnectWithPass(char *servername,int port,char *pass)
249: {
250: int fd;
251: int m;
252: fd = socketConnect(servername,port);
253: if (fd >= 0) {
254: m = write(fd,pass,strlen(pass));
255: if (m != strlen(pass)) {
256: fprintf(TcpioError,"Fail to send password to fd=%d.\n",fd);
257: return(-1);
258: }
259: return(fd);
260: }else{
261: return(-1);
262: }
263: }
264:
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