diff options
Diffstat (limited to 'usr.bin/tip/remote.c')
| -rw-r--r-- | usr.bin/tip/remote.c | 226 |
1 files changed, 226 insertions, 0 deletions
diff --git a/usr.bin/tip/remote.c b/usr.bin/tip/remote.c new file mode 100644 index 0000000..9b86066 --- /dev/null +++ b/usr.bin/tip/remote.c @@ -0,0 +1,226 @@ +/* + * Copyright (c) 1992, 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 copyright[] = +"@(#) Copyright (c) 1992, 1993\n\ + The Regents of the University of California. All rights reserved.\n"; +#endif /* not lint */ + +#ifndef lint +static char sccsid[] = "@(#)remote.c 8.1 (Berkeley) 6/6/93"; +#endif /* not lint */ + +#include <stdio.h> +#include <stdlib.h> + +#include "pathnames.h" +#include "tip.h" + +/* + * Attributes to be gleened from remote host description + * data base. + */ +static char **caps[] = { + &AT, &DV, &CM, &CU, &EL, &IE, &OE, &PN, &PR, &DI, + &ES, &EX, &FO, &RC, &RE, &PA +}; + +static char *capstrings[] = { + "at", "dv", "cm", "cu", "el", "ie", "oe", "pn", "pr", + "di", "es", "ex", "fo", "rc", "re", "pa", 0 +}; + +static char *db_array[3] = { _PATH_REMOTE, 0, 0 }; + +#define cgetflag(f) (cgetcap(bp, f, ':') != NULL) + +static +getremcap(host) + register char *host; +{ + register char **p, ***q; + char *bp; + char *rempath; + int stat; + + rempath = getenv("REMOTE"); + if (rempath != NULL) + if (*rempath != '/') + /* we have an entry */ + cgetset(rempath); + else { /* we have a path */ + db_array[1] = rempath; + db_array[2] = _PATH_REMOTE; + } + + if ((stat = cgetent(&bp, db_array, host)) < 0) { + if (DV || + host[0] == '/' && access(DV = host, R_OK | W_OK) == 0) { + CU = DV; + HO = host; + HW = 1; + DU = 0; + if (!BR) + BR = DEFBR; + FS = DEFFS; + return; + } + switch(stat) { + case -1: + fprintf(stderr, "tip: unknown host %s\n", host); + break; + case -2: + fprintf(stderr, + "tip: can't open host description file\n"); + break; + case -3: + fprintf(stderr, + "tip: possible reference loop in host description file\n"); + break; + } + exit(3); + } + + for (p = capstrings, q = caps; *p != NULL; p++, q++) + if (**q == NULL) + cgetstr(bp, *p, *q); + if (!BR && (cgetnum(bp, "br", &BR) == -1)) + BR = DEFBR; + if (cgetnum(bp, "fs", &FS) == -1) + FS = DEFFS; + if (DU < 0) + DU = 0; + else + DU = cgetflag("du"); + if (DV == NOSTR) { + fprintf(stderr, "%s: missing device spec\n", host); + exit(3); + } + if (DU && CU == NOSTR) + CU = DV; + if (DU && PN == NOSTR) { + fprintf(stderr, "%s: missing phone number\n", host); + exit(3); + } + + HD = cgetflag("hd"); + + /* + * This effectively eliminates the "hw" attribute + * from the description file + */ + if (!HW) + HW = (CU == NOSTR) || (DU && equal(DV, CU)); + HO = host; + /* + * see if uppercase mode should be turned on initially + */ + if (cgetflag("ra")) + boolean(value(RAISE)) = 1; + if (cgetflag("ec")) + boolean(value(ECHOCHECK)) = 1; + if (cgetflag("be")) + boolean(value(BEAUTIFY)) = 1; + if (cgetflag("nb")) + boolean(value(BEAUTIFY)) = 0; + if (cgetflag("sc")) + boolean(value(SCRIPT)) = 1; + if (cgetflag("tb")) + boolean(value(TABEXPAND)) = 1; + if (cgetflag("vb")) + boolean(value(VERBOSE)) = 1; + if (cgetflag("nv")) + boolean(value(VERBOSE)) = 0; + if (cgetflag("ta")) + boolean(value(TAND)) = 1; + if (cgetflag("nt")) + boolean(value(TAND)) = 0; + if (cgetflag("rw")) + boolean(value(RAWFTP)) = 1; + if (cgetflag("hd")) + boolean(value(HALFDUPLEX)) = 1; + if (RE == NOSTR) + RE = (char *)"tip.record"; + if (EX == NOSTR) + EX = (char *)"\t\n\b\f"; + if (ES != NOSTR) + vstring("es", ES); + if (FO != NOSTR) + vstring("fo", FO); + if (PR != NOSTR) + vstring("pr", PR); + if (RC != NOSTR) + vstring("rc", RC); + if (cgetnum(bp, "dl", &DL) == -1) + DL = 0; + if (cgetnum(bp, "cl", &CL) == -1) + CL = 0; + if (cgetnum(bp, "et", &ET) == -1) + ET = 10; +} + +char * +getremote(host) + char *host; +{ + register char *cp; + static char *next; + static int lookedup = 0; + + if (!lookedup) { + if (host == NOSTR && (host = getenv("HOST")) == NOSTR) { + fprintf(stderr, "tip: no host specified\n"); + exit(3); + } + getremcap(host); + next = DV; + lookedup++; + } + /* + * We return a new device each time we're called (to allow + * a rotary action to be simulated) + */ + if (next == NOSTR) + return (NOSTR); + if ((cp = index(next, ',')) == NULL) { + DV = next; + next = NOSTR; + } else { + *cp++ = '\0'; + DV = next; + next = cp; + } + return (DV); +} |
