2 * Copyright (c) 1991, 1993
3 * The Regents of the University of California. All rights reserved.
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6 * modification, are permitted provided that the following conditions
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14 * must display the following acknowledgement:
15 * This product includes software developed by the University of
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18 * may be used to endorse or promote products derived from this software
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33 * @(#)term.c 8.1 (Berkeley) 6/9/93
34 * $FreeBSD: src/usr.bin/tset/term.c,v 1.4 1999/08/28 01:06:58 peter Exp $
35 * $DragonFly: src/usr.bin/tset/term.c,v 1.4 2004/08/30 18:06:50 eirikn Exp $
38 #include <sys/types.h>
48 char tbuf[1024]; /* Termcap entry. */
50 char *askuser(char *);
54 * Figure out what kind of terminal we're dealing with, and then read in
58 get_termcap_entry(char *userarg, char **tcapbufp)
62 char *p, *ttype, *ttypath;
69 /* Try the environment. */
70 if ((ttype = getenv("TERM")))
73 /* Try ttyname(3); check for dialup or other mapping. */
74 if ((ttypath = ttyname(STDERR_FILENO))) {
75 if ((p = strrchr(ttypath, '/')))
79 if ((t = getttynam(p))) {
85 /* If still undefined, use "unknown". */
88 map: ttype = mapped(ttype);
91 * If not a path, remove TERMCAP from the environment so we get a
92 * real entry from /etc/termcap. This prevents us from being fooled
93 * by out of date stuff in the environment.
95 found: if ((p = getenv("TERMCAP")) != NULL && *p != '/')
99 * ttype now contains a pointer to the type of the terminal.
100 * If the first character is '?', ask the user.
102 if (ttype[0] == '?') {
103 if (ttype[1] != '\0')
104 ttype = askuser(ttype + 1);
106 ttype = askuser(NULL);
109 /* Find the termcap entry. If it doesn't exist, ask the user. */
110 while ((rval = tgetent(tbuf, ttype)) == 0) {
111 warnx("terminal type %s is unknown", ttype);
112 ttype = askuser(NULL);
115 errx(1, "termcap: %s", strerror(errno ? errno : ENOENT));
120 /* Prompt the user for a terminal type. */
124 static char answer[256];
127 /* We can get recalled; if so, don't continue uselessly. */
128 if (feof(stdin) || ferror(stdin)) {
129 (void)fprintf(stderr, "\n");
134 (void)fprintf(stderr, "Terminal type? [%s] ", dflt);
136 (void)fprintf(stderr, "Terminal type? ");
137 (void)fflush(stderr);
139 if (fgets(answer, sizeof(answer), stdin) == NULL) {
141 (void)fprintf(stderr, "\n");
147 if ((p = strchr(answer, '\n')))