285 lines
7.6 KiB
C
285 lines
7.6 KiB
C
/*-
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* Copyright (c) 1988 The Regents of the University of California.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef lint
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static char sccsid[] = "@(#)api_bsd.c 4.2 (Berkeley) 4/26/91";
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#endif /* not lint */
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#if defined(unix)
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <netinet/in.h>
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#include <netdb.h>
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#include <stdio.h>
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#include "../ctlr/api.h"
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#include "api_exch.h"
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int
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api_close_api()
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{
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if (api_exch_outcommand(EXCH_CMD_DISASSOCIATE) == -1) {
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return -1;
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} else if (api_exch_flush() == -1) {
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return -1;
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} else {
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return 0;
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}
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}
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int
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api_open_api(string)
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char *string; /* if non-zero, where to connect to */
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{
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struct sockaddr_in server;
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struct hostent *hp;
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struct storage_descriptor sd;
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extern char *getenv();
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#if !defined(htons)
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extern unsigned short htons();
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#endif /* !defined(htons) */
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char thehostname[100];
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char keyname[100];
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char inkey[100];
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FILE *keyfile;
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int sock;
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unsigned int port;
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int i;
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if (string == 0) {
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string = getenv("API3270"); /* Get API */
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if (string == 0) {
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fprintf(stderr,
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"API3270 environmental variable not set - no API.\n");
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return -1; /* Nothing */
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}
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}
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if (sscanf(string, "%[^:]:%d:%s", thehostname,
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(int *)&port, keyname) != 3) {
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fprintf(stderr, "API3270 environmental variable has bad format.\n");
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return -1;
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}
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/* Now, try to connect */
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sock = socket(AF_INET, SOCK_STREAM, 0);
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if (sock < 0) {
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perror("opening API socket");
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return -1;
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}
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server.sin_family = AF_INET;
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hp = gethostbyname(thehostname);
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if (hp == 0) {
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fprintf(stderr, "%s specifies bad host name.\n", string);
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return -1;
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}
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bcopy(hp->h_addr, (char *)&server.sin_addr, hp->h_length);
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server.sin_port = htons(port);
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if (connect(sock, (struct sockaddr *)&server, sizeof server) < 0) {
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perror("connecting to API server");
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return -1;
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}
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/* Now, try application level connection */
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if (api_exch_init(sock, "client") == -1) {
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return -1;
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}
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if (api_exch_outcommand(EXCH_CMD_ASSOCIATE) == -1) {
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return -1;
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}
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keyfile = fopen(keyname, "r");
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if (keyfile == 0) {
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perror("fopen");
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return -1;
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}
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if (fscanf(keyfile, "%s\n", inkey) != 1) {
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perror("fscanf");
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return -1;
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}
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sd.length = strlen(inkey)+1;
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if (api_exch_outtype(EXCH_TYPE_STORE_DESC, sizeof sd, (char *)&sd) == -1) {
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return -1;
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}
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if (api_exch_outtype(EXCH_TYPE_BYTES, sd.length, inkey) == -1) {
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return -1;
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}
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while ((i = api_exch_nextcommand()) != EXCH_CMD_ASSOCIATED) {
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int passwd_length;
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char *passwd, *getpass();
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char buffer[200];
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switch (i) {
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case EXCH_CMD_REJECTED:
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if (api_exch_intype(EXCH_TYPE_STORE_DESC,
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sizeof sd, (char *)&sd) == -1) {
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return -1;
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}
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if (api_exch_intype(EXCH_TYPE_BYTES, sd.length, buffer) == -1) {
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return -1;
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}
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buffer[sd.length] = 0;
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fprintf(stderr, "%s\n", buffer);
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if (api_exch_outcommand(EXCH_CMD_ASSOCIATE) == -1) {
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return -1;
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}
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break;
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case EXCH_CMD_SEND_AUTH:
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if (api_exch_intype(EXCH_TYPE_STORE_DESC, sizeof sd, (char *)&sd) == -1) {
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return -1;
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}
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if (api_exch_intype(EXCH_TYPE_BYTES, sd.length, buffer) == -1) {
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return -1;
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}
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buffer[sd.length] = 0;
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passwd = getpass(buffer); /* Go to terminal */
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passwd_length = strlen(passwd);
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if (api_exch_intype(EXCH_TYPE_STORE_DESC, sizeof sd, (char *)&sd) == -1) {
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return -1;
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}
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if (api_exch_intype(EXCH_TYPE_BYTES, sd.length, buffer) == -1) {
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return -1;
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}
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buffer[sd.length] = 0;
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if (sd.length) {
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char *ptr;
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ptr = passwd;
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i = 0;
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while (*ptr) {
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*ptr++ ^= buffer[i++];
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if (i >= sd.length) {
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i = 0;
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}
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}
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}
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sd.length = passwd_length;
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if (api_exch_outcommand(EXCH_CMD_AUTH) == -1) {
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return -1;
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}
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if (api_exch_outtype(EXCH_TYPE_STORE_DESC, sizeof sd, (char *)&sd) == -1) {
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return -1;
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}
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if (api_exch_outtype(EXCH_TYPE_BYTES, passwd_length, passwd) == -1) {
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return -1;
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}
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break;
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case -1:
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return -1;
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default:
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fprintf(stderr,
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"Waiting for connection indicator, received 0x%x.\n", i);
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break;
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}
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}
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/* YEAH */
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return 0; /* Happiness! */
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}
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api_exch_api(regs, sregs, parms, length)
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union REGS *regs;
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struct SREGS *sregs;
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char *parms;
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int length;
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{
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struct storage_descriptor sd;
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int i;
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if (api_exch_outcommand(EXCH_CMD_REQUEST) == -1) {
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return -1;
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}
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if (api_exch_outtype(EXCH_TYPE_REGS, sizeof *regs, (char *)regs) == -1) {
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return -1;
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}
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if (api_exch_outtype(EXCH_TYPE_SREGS, sizeof *sregs, (char *)sregs) == -1) {
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return -1;
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}
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sd.length = length;
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sd.location = (long) parms;
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if (api_exch_outtype(EXCH_TYPE_STORE_DESC, sizeof sd, (char *)&sd) == -1) {
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return -1;
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}
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if (api_exch_outtype(EXCH_TYPE_BYTES, length, parms) == -1) {
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return -1;
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}
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while ((i = api_exch_nextcommand()) != EXCH_CMD_REPLY) {
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switch (i) {
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case EXCH_CMD_GIMME:
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if (api_exch_intype(EXCH_TYPE_STORE_DESC, sizeof sd, (char *)&sd)
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== -1) {
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return -1;
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}
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/*XXX validity check GIMME? */
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if (api_exch_outcommand(EXCH_CMD_HEREIS) == -1) {
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return -1;
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}
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if (api_exch_outtype(EXCH_TYPE_STORE_DESC, sizeof sd, (char *)&sd)
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== -1) {
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return -1;
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}
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if (api_exch_outtype(EXCH_TYPE_BYTES, sd.length,
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(char *)sd.location) == -1) {
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return -1;
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}
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break;
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case EXCH_CMD_HEREIS:
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if (api_exch_intype(EXCH_TYPE_STORE_DESC, sizeof sd, (char *)&sd)
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== -1) {
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return -1;
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}
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/* XXX Validty check HEREIS? */
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if (api_exch_intype(EXCH_TYPE_BYTES, sd.length,
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(char *)sd.location) == -1) {
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return -1;
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}
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break;
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default:
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fprintf(stderr, "Waiting for reply command, we got command %d.\n",
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i);
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return -1;
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}
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}
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if (api_exch_intype(EXCH_TYPE_REGS, sizeof *regs, (char *)regs) == -1) {
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return -1;
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}
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if (api_exch_intype(EXCH_TYPE_SREGS, sizeof *sregs, (char *)sregs) == -1) {
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return -1;
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}
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/* YEAH */
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return 0; /* Happiness! */
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}
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#endif /* unix */
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