[moira.git] / clients / userreg / reg_stubs.c

/*
 *	$Source$
 *	$Author$
 *	$Header$
 *
 *	Copyright (C) 1987 by the Massachusetts Institute of Technology
 *
 *	$Log$
 *	Revision 1.2  1987-09-04 22:57:33  wesommer
 *	Rearranged timeouts, max retransmits.
 *
 * Revision 1.1  87/08/22  18:39:29  wesommer
 * Initial revision
 * 
 */

#ifndef lint
static char *rcsid_reg_stubs_c = "$Header$";
#endif lint
#include <stdio.h>
#include <sys/types.h>
#include <sys/time.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netdb.h>
#include <des.h>
#include <errno.h>
#include "ureg_err.h"
#include "ureg_proto.h"
#include <strings.h>

static int reg_sock = -1;
extern errno;
#define UNKNOWN_HOST -1
#define UNKNOWN_SERVICE -2

ureg_init()
{
    struct servent *sp;
    struct hostent *hp;
    struct sockaddr_in sin;
    
    init_ureg_err_tbl();
    init_sms_err_tbl();
    
    hp = gethostbyname("sms.mit.edu");
    if (hp == NULL) return UNKNOWN_HOST;

    sp = getservbyname("sms_ureg", "udp");

    if (sp == NULL) return UNKNOWN_SERVICE;
    
    (void) close(reg_sock);
    reg_sock = socket(AF_INET, SOCK_DGRAM, 0);
    if (reg_sock < 0) return errno;

    bzero((char *)&sin, sizeof(sin));
    sin.sin_port = sp->s_port;
    bcopy(hp->h_addr, (char *)&sin.sin_addr, sizeof(struct in_addr));
    sin.sin_family = AF_INET;

    if (connect(reg_sock, &sin, sizeof(sin)) < 0)
	return errno;
    return 0;
}

static int seq_no = 0;
 
int
verify_user(first, last, idnumber, hashidnumber, login)
    char *first, *last, *idnumber, *hashidnumber, *login;
{
    char buf[1024];
    int version = ntohl((u_long)1);
    int call = ntohl((u_long)UREG_VERIFY_USER);
    C_Block key;
    Key_schedule ks;
    register char *bp = buf;
    register int len;
    char crypt_src[1024];
    
    bcopy((char *)&version, bp, sizeof(int));
    bp += sizeof(int);
    seq_no++;
    bcopy((char *)&seq_no, bp, sizeof(int));

    bp += sizeof(int);

    bcopy((char *)&call, bp, sizeof(int));

    bp += sizeof(int);

    (void) strcpy(bp, first);
    bp += strlen(bp)+1;

    (void) strcpy(bp, last);
    bp += strlen(bp)+1;

    len = strlen(idnumber) + 1;
    bcopy(idnumber, crypt_src, len);

    bcopy(hashidnumber, crypt_src+len, 13);

    string_to_key(hashidnumber, key);
    key_sched(key, ks);
    pcbc_encrypt(crypt_src, bp, len+14, ks, key, 1);
    bp += len+14+8;
    len = bp - buf;
    return do_call(buf, len, seq_no, login);
}

grab_login(first, last, idnumber, hashidnumber, login)
    char *first, *last, *idnumber, *hashidnumber, *login;
{
    char buf[1024];
    int version = ntohl((u_long)1);
    int call = ntohl((u_long)UREG_RESERVE_LOGIN);
    C_Block key;
    Key_schedule ks;
    register char *bp = buf;
    register int len;
    int i;
    
    char crypt_src[1024];
    char *cbp;
    
    bcopy((char *)&version, bp, sizeof(int));
    bp += sizeof(int);
    seq_no++;
    bcopy((char *)&seq_no, bp, sizeof(int));

    bp += sizeof(int);

    bcopy((char *)&call, bp, sizeof(int));

    bp += sizeof(int);

    (void) strcpy(bp, first);
    bp += strlen(bp)+1;

    (void) strcpy(bp, last);
    bp += strlen(bp)+1;

    len = strlen(idnumber) + 1;
    cbp = crypt_src;
    
    bcopy(idnumber, crypt_src, len);
    cbp += len;
    
    bcopy(hashidnumber, cbp, 14);
    cbp += 14;
    
    len = strlen(login) + 1;
    bcopy(login, cbp, len);
    cbp += len;

    len = cbp - crypt_src;
    string_to_key(hashidnumber, key);
    key_sched(key, ks);
    pcbc_encrypt(crypt_src, bp, len, ks, key, 1);
#ifdef notdef    
    for (i = 0; i < len; i++) {
	printf("%02.2x ", (unsigned char)bp[i]);
    }
    printf("\n");
#endif notdef
    len = ((len + 7) >> 3) << 3;
    bp += len;
    
    len = bp - buf;
    return do_call(buf, len, seq_no, 0);

}

set_password(first, last, idnumber, hashidnumber, password)
    char *first, *last, *idnumber, *hashidnumber, *password;
{
    char buf[1024];
    int version = ntohl((u_long)1);
    int call = ntohl((u_long)UREG_SET_PASSWORD);
    C_Block key;
    Key_schedule ks;
    register char *bp = buf;
    register int len;
    int i;
    
    char crypt_src[1024];
    char *cbp;
    
    bcopy((char *)&version, bp, sizeof(int));
    bp += sizeof(int);
    seq_no++;
    bcopy((char *)&seq_no, bp, sizeof(int));

    bp += sizeof(int);

    bcopy((char *)&call, bp, sizeof(int));

    bp += sizeof(int);

    (void) strcpy(bp, first);
    bp += strlen(bp)+1;

    (void) strcpy(bp, last);
    bp += strlen(bp)+1;

    len = strlen(idnumber) + 1;
    cbp = crypt_src;
    
    bcopy(idnumber, crypt_src, len);
    cbp += len;
    
    bcopy(hashidnumber, cbp, 14);
    cbp += 14;
    
    len = strlen(password) + 1;
    bcopy(password, cbp, len);
    cbp += len;

    len = cbp - crypt_src;
    string_to_key(hashidnumber, key);
    key_sched(key, ks);
    pcbc_encrypt(crypt_src, bp, len, ks, key, 1);
#ifdef notdef    
    for (i = 0; i < len; i++) {
	printf("%02.2x ", (unsigned char)bp[i]);
    }
    printf("\n");
#endif notdef
    len = ((len + 7) >> 3) << 3;
    bp += len;
    
    len = bp - buf;
    return do_call(buf, len, seq_no, 0);

}

static do_call(buf, len, seq_no, login)
    char *buf;
    char *login;
    int seq_no;
    int len;
{
    struct timeval timeout;
    char ibuf[1024];
    fd_set set;
    
    int retry = 0;

    do {
	if (write(reg_sock, buf, len) != len) return errno;

	FD_ZERO(&set);
	FD_SET(reg_sock, &set);
	timeout.tv_sec = 25;
	timeout.tv_usec = 0;
	do {
	    int rtn;
	    struct sockaddr_in sin;
	    int addrlen = sizeof(sin);
	    int vno;
	    int sno;
	    int stat;
	    
	    rtn = select(reg_sock+1, &set, (fd_set *)0, (fd_set *)0, &timeout);
	    if (rtn == 0)
		break;
	    else if (rtn < 0) return errno;
	
	    len = recvfrom(reg_sock, ibuf, BUFSIZ, 0, &sin, &addrlen);
	    if (len < 0) return errno;
	    if (len < 12) return UREG_BROKEN_PACKET;
	    bcopy(ibuf, (char *)&vno, sizeof(long));
	    vno = ntohl((u_long)vno);
	    if (vno != 1) continue;
	    bcopy(ibuf + 4, (char *)&sno, sizeof(long));

	    if (sno != seq_no) continue;

	    bcopy(ibuf + 8, (char *)&stat, sizeof(long));
	    stat = ntohl((u_long)stat);
	    if (login) {
		bcopy(ibuf+12, login, len-12);
		login[len-12] = '\0';
	    }
	    return stat;
	} while (1);
    } while (++retry < 10);
    return ETIMEDOUT;
}    

/*
 * Local Variables:
 * mode: c
 * c-indent-level: 4
 * c-continued-statement-offset: 4
 * c-brace-offset: -4
 * c-argdecl-indent: 4
 * c-label-offset: -4
 * End:
 */
Commit	Line	Data
6e6374cb	1	/*
	2	* $Source$
	3	* $Author$
	4	* $Header$
	5	*
	6	* Copyright (C) 1987 by the Massachusetts Institute of Technology
	7	*
	8	* $Log$
0c8192b9	9	* Revision 1.2 1987-09-04 22:57:33 wesommer
0c8192b9	10	* Rearranged timeouts, max retransmits.
6e6374cb	11	*
0c8192b9	12	* Revision 1.1 87/08/22 18:39:29 wesommer
	13	* Initial revision
	14	*
6e6374cb	15	*/
	16
	17	#ifndef lint
	18	static char *rcsid_reg_stubs_c = "$Header$";
	19	#endif lint
	20	#include <stdio.h>
	21	#include <sys/types.h>
	22	#include <sys/time.h>
	23	#include <sys/socket.h>
	24	#include <netinet/in.h>
	25	#include <netdb.h>
	26	#include <des.h>
	27	#include <errno.h>
	28	#include "ureg_err.h"
	29	#include "ureg_proto.h"
	30	#include <strings.h>
	31
	32	static int reg_sock = -1;
	33	extern errno;
	34	#define UNKNOWN_HOST -1
	35	#define UNKNOWN_SERVICE -2
	36
	37	ureg_init()
	38	{
	39	struct servent *sp;
	40	struct hostent *hp;
	41	struct sockaddr_in sin;
	42
	43	init_ureg_err_tbl();
	44	init_sms_err_tbl();
	45
	46	hp = gethostbyname("sms.mit.edu");
	47	if (hp == NULL) return UNKNOWN_HOST;
	48
	49	sp = getservbyname("sms_ureg", "udp");
	50
	51	if (sp == NULL) return UNKNOWN_SERVICE;
	52
	53	(void) close(reg_sock);
	54	reg_sock = socket(AF_INET, SOCK_DGRAM, 0);
	55	if (reg_sock < 0) return errno;
	56
	57	bzero((char *)&sin, sizeof(sin));
	58	sin.sin_port = sp->s_port;
	59	bcopy(hp->h_addr, (char *)&sin.sin_addr, sizeof(struct in_addr));
	60	sin.sin_family = AF_INET;
	61
	62	if (connect(reg_sock, &sin, sizeof(sin)) < 0)
	63	return errno;
	64	return 0;
	65	}
	66
	67	static int seq_no = 0;
	68
	69	int
	70	verify_user(first, last, idnumber, hashidnumber, login)
	71	char first, last, idnumber, hashidnumber, *login;
	72	{
	73	char buf[1024];
	74	int version = ntohl((u_long)1);
	75	int call = ntohl((u_long)UREG_VERIFY_USER);
	76	C_Block key;
	77	Key_schedule ks;
	78	register char *bp = buf;
79	register int len;
80	char crypt_src[1024];
81
82	bcopy((char *)&version, bp, sizeof(int));
83	bp += sizeof(int);
84	seq_no++;
85	bcopy((char *)&seq_no, bp, sizeof(int));
86
87	bp += sizeof(int);
88
89	bcopy((char *)&call, bp, sizeof(int));
90
91	bp += sizeof(int);
92
93	(void) strcpy(bp, first);
94	bp += strlen(bp)+1;
95
96	(void) strcpy(bp, last);
97	bp += strlen(bp)+1;
98
99	len = strlen(idnumber) + 1;
100	bcopy(idnumber, crypt_src, len);
101
102	bcopy(hashidnumber, crypt_src+len, 13);
103
104	string_to_key(hashidnumber, key);
105	key_sched(key, ks);
106	pcbc_encrypt(crypt_src, bp, len+14, ks, key, 1);
107	bp += len+14+8;
108	len = bp - buf;
109	return do_call(buf, len, seq_no, login);
110	}
111
112	grab_login(first, last, idnumber, hashidnumber, login)
113	char first, last, idnumber, hashidnumber, *login;
114	{
115	char buf[1024];
116	int version = ntohl((u_long)1);
117	int call = ntohl((u_long)UREG_RESERVE_LOGIN);
118	C_Block key;
119	Key_schedule ks;
120	register char *bp = buf;
121	register int len;
122	int i;
123
124	char crypt_src[1024];
125	char *cbp;
126
127	bcopy((char *)&version, bp, sizeof(int));
128	bp += sizeof(int);
129	seq_no++;
130	bcopy((char *)&seq_no, bp, sizeof(int));
131
132	bp += sizeof(int);
133
134	bcopy((char *)&call, bp, sizeof(int));
135
136	bp += sizeof(int);
137
138	(void) strcpy(bp, first);
139	bp += strlen(bp)+1;
140
141	(void) strcpy(bp, last);
142	bp += strlen(bp)+1;
143
144	len = strlen(idnumber) + 1;
145	cbp = crypt_src;
146
147	bcopy(idnumber, crypt_src, len);
148	cbp += len;
149
150	bcopy(hashidnumber, cbp, 14);
151	cbp += 14;
152
153	len = strlen(login) + 1;
154	bcopy(login, cbp, len);
155	cbp += len;
156
157	len = cbp - crypt_src;
158	string_to_key(hashidnumber, key);
159	key_sched(key, ks);
160	pcbc_encrypt(crypt_src, bp, len, ks, key, 1);
161	#ifdef notdef
162	for (i = 0; i < len; i++) {
163	printf("%02.2x ", (unsigned char)bp[i]);
164	}
165	printf("\n");
166	#endif notdef
167	len = ((len + 7) >> 3) << 3;
168	bp += len;
169
170	len = bp - buf;
171	return do_call(buf, len, seq_no, 0);
172
173	}
174
175	set_password(first, last, idnumber, hashidnumber, password)
176	char first, last, idnumber, hashidnumber, *password;
177	{
178	char buf[1024];
179	int version = ntohl((u_long)1);
180	int call = ntohl((u_long)UREG_SET_PASSWORD);
181	C_Block key;
182	Key_schedule ks;
183	register char *bp = buf;
184	register int len;
185	int i;
186
187	char crypt_src[1024];
188	char *cbp;
189
190	bcopy((char *)&version, bp, sizeof(int));
191	bp += sizeof(int);
192	seq_no++;
193	bcopy((char *)&seq_no, bp, sizeof(int));
194
195	bp += sizeof(int);
196
197	bcopy((char *)&call, bp, sizeof(int));
198
199	bp += sizeof(int);
200
201	(void) strcpy(bp, first);
202	bp += strlen(bp)+1;
203
204	(void) strcpy(bp, last);
205	bp += strlen(bp)+1;
206
207	len = strlen(idnumber) + 1;
208	cbp = crypt_src;
209
210	bcopy(idnumber, crypt_src, len);
211	cbp += len;
212
213	bcopy(hashidnumber, cbp, 14);
214	cbp += 14;
215
216	len = strlen(password) + 1;
217	bcopy(password, cbp, len);
218	cbp += len;
219
220	len = cbp - crypt_src;
221	string_to_key(hashidnumber, key);
222	key_sched(key, ks);
223	pcbc_encrypt(crypt_src, bp, len, ks, key, 1);
224	#ifdef notdef
225	for (i = 0; i < len; i++) {
226	printf("%02.2x ", (unsigned char)bp[i]);
227	}
228	printf("\n");
229	#endif notdef
230	len = ((len + 7) >> 3) << 3;
231	bp += len;
232
233	len = bp - buf;
234	return do_call(buf, len, seq_no, 0);
235
236	}
237
238	static do_call(buf, len, seq_no, login)
239	char *buf;
240	char *login;
241	int seq_no;
242	int len;
243	{
244	struct timeval timeout;
245	char ibuf[1024];
246	fd_set set;
247
248	int retry = 0;
249
250	do {
251	if (write(reg_sock, buf, len) != len) return errno;
252
253	FD_ZERO(&set);
254	FD_SET(reg_sock, &set);
0c8192b9	255	timeout.tv_sec = 25;
6e6374cb	256	timeout.tv_usec = 0;
	257	do {
	258	int rtn;
	259	struct sockaddr_in sin;
	260	int addrlen = sizeof(sin);
	261	int vno;
	262	int sno;
	263	int stat;
	264
	265	rtn = select(reg_sock+1, &set, (fd_set )0, (fd_set )0, &timeout);
	266	if (rtn == 0)
	267	break;
	268	else if (rtn < 0) return errno;
	269
	270	len = recvfrom(reg_sock, ibuf, BUFSIZ, 0, &sin, &addrlen);
	271	if (len < 0) return errno;
	272	if (len < 12) return UREG_BROKEN_PACKET;
	273	bcopy(ibuf, (char *)&vno, sizeof(long));
	274	vno = ntohl((u_long)vno);
	275	if (vno != 1) continue;
	276	bcopy(ibuf + 4, (char *)&sno, sizeof(long));
	277
	278	if (sno != seq_no) continue;
	279
	280	bcopy(ibuf + 8, (char *)&stat, sizeof(long));
	281	stat = ntohl((u_long)stat);
	282	if (login) {
	283	bcopy(ibuf+12, login, len-12);
	284	login[len-12] = '\0';
	285	}
	286	return stat;
	287	} while (1);
0c8192b9	288	} while (++retry < 10);
6e6374cb	289	return ETIMEDOUT;
	290	}
	291
	292	/*
	293	* Local Variables:
	294	* mode: c
	295	* c-indent-level: 4
	296	* c-continued-statement-offset: 4
	297	* c-brace-offset: -4
	298	* c-argdecl-indent: 4
	299	* c-label-offset: -4
	300	* End:
	301	*/