diff options
Diffstat (limited to 'usr.bin/tip/acu.c')
| -rw-r--r-- | usr.bin/tip/acu.c | 196 |
1 files changed, 196 insertions, 0 deletions
diff --git a/usr.bin/tip/acu.c b/usr.bin/tip/acu.c new file mode 100644 index 0000000..f7bde99 --- /dev/null +++ b/usr.bin/tip/acu.c @@ -0,0 +1,196 @@ +/* + * Copyright (c) 1983, 1993 + * The Regents of the University of California. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#ifndef lint +static char sccsid[] = "@(#)acu.c 8.1 (Berkeley) 6/6/93"; +#endif /* not lint */ + +#include "tip.h" + +static acu_t *acu = NOACU; +static int conflag; +static void acuabort(); +static acu_t *acutype(); +static jmp_buf jmpbuf; +/* + * Establish connection for tip + * + * If DU is true, we should dial an ACU whose type is AT. + * The phone numbers are in PN, and the call unit is in CU. + * + * If the PN is an '@', then we consult the PHONES file for + * the phone numbers. This file is /etc/phones, unless overriden + * by an exported shell variable. + * + * The data base files must be in the format: + * host-name[ \t]*phone-number + * with the possibility of multiple phone numbers + * for a single host acting as a rotary (in the order + * found in the file). + */ +char * +connect() +{ + register char *cp = PN; + char *phnum, string[256]; + FILE *fd; + int tried = 0; + + if (!DU) { /* regular connect message */ + if (CM != NOSTR) + pwrite(FD, CM, size(CM)); + logent(value(HOST), "", DV, "call completed"); + return (NOSTR); + } + /* + * @ =>'s use data base in PHONES environment variable + * otherwise, use /etc/phones + */ + signal(SIGINT, acuabort); + signal(SIGQUIT, acuabort); + if (setjmp(jmpbuf)) { + signal(SIGINT, SIG_IGN); + signal(SIGQUIT, SIG_IGN); + printf("\ncall aborted\n"); + logent(value(HOST), "", "", "call aborted"); + if (acu != NOACU) { + boolean(value(VERBOSE)) = FALSE; + if (conflag) + disconnect(NOSTR); + else + (*acu->acu_abort)(); + } + return ("interrupt"); + } + if ((acu = acutype(AT)) == NOACU) + return ("unknown ACU type"); + if (*cp != '@') { + while (*cp) { + for (phnum = cp; *cp && *cp != ','; cp++) + ; + if (*cp) + *cp++ = '\0'; + + if (conflag = (*acu->acu_dialer)(phnum, CU)) { + if (CM != NOSTR) + pwrite(FD, CM, size(CM)); + logent(value(HOST), phnum, acu->acu_name, + "call completed"); + return (NOSTR); + } else + logent(value(HOST), phnum, acu->acu_name, + "call failed"); + tried++; + } + } else { + if ((fd = fopen(PH, "r")) == NOFILE) { + printf("%s: ", PH); + return ("can't open phone number file"); + } + while (fgets(string, sizeof(string), fd) != NOSTR) { + for (cp = string; !any(*cp, " \t\n"); cp++) + ; + if (*cp == '\n') { + fclose(fd); + return ("unrecognizable host name"); + } + *cp++ = '\0'; + if (strcmp(string, value(HOST))) + continue; + while (any(*cp, " \t")) + cp++; + if (*cp == '\n') { + fclose(fd); + return ("missing phone number"); + } + for (phnum = cp; *cp && *cp != ',' && *cp != '\n'; cp++) + ; + if (*cp) + *cp++ = '\0'; + + if (conflag = (*acu->acu_dialer)(phnum, CU)) { + fclose(fd); + if (CM != NOSTR) + pwrite(FD, CM, size(CM)); + logent(value(HOST), phnum, acu->acu_name, + "call completed"); + return (NOSTR); + } else + logent(value(HOST), phnum, acu->acu_name, + "call failed"); + tried++; + } + fclose(fd); + } + if (!tried) + logent(value(HOST), "", acu->acu_name, "missing phone number"); + else + (*acu->acu_abort)(); + return (tried ? "call failed" : "missing phone number"); +} + +disconnect(reason) + char *reason; +{ + if (!conflag) { + logent(value(HOST), "", DV, "call terminated"); + return; + } + if (reason == NOSTR) { + logent(value(HOST), "", acu->acu_name, "call terminated"); + if (boolean(value(VERBOSE))) + printf("\r\ndisconnecting..."); + } else + logent(value(HOST), "", acu->acu_name, reason); + (*acu->acu_disconnect)(); +} + +static void +acuabort(s) +{ + signal(s, SIG_IGN); + longjmp(jmpbuf, 1); +} + +static acu_t * +acutype(s) + register char *s; +{ + register acu_t *p; + extern acu_t acutable[]; + + for (p = acutable; p->acu_name != '\0'; p++) + if (!strcmp(s, p->acu_name)) + return (p); + return (NOACU); +} |
