diff options
Diffstat (limited to 'local.c')
| -rw-r--r-- | local.c | 82 |
1 files changed, 75 insertions, 7 deletions
@@ -1,4 +1,4 @@ -/* $Id: local.c,v 1.17 2007-10-31 14:26:26 nicm Exp $ */ +/* $Id: local.c,v 1.18 2007-11-08 10:39:52 nicm Exp $ */ /* * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net> @@ -213,10 +213,32 @@ u_char local_colr; int local_init(struct buffer **in, struct buffer **out) { - char *tty; - int mode; - struct termios tio; - struct local_key *lk; + char *tty; + int mode, error; + struct termios tio; + struct local_key *lk; + u_int i, j; + static const char *const reqd[] = { + "carriage_return", + "change_scroll_region", + "clear_screen", + "clr_bol", + "clr_eol", + "cursor_address", + "cursor_down", + "enter_ca_mode", + "exit_ca_mode", + "parm_dch", + "parm_delete_line", + "parm_down_cursor", + "parm_ich", + "parm_insert_line", + "parm_left_cursor", + "parm_right_cursor", + "parm_up_cursor", + "scroll_reverse", + NULL + }; if ((tty = ttyname(STDOUT_FILENO)) == NULL) fatal("ttyname failed"); @@ -227,11 +249,57 @@ local_init(struct buffer **in, struct buffer **out) if (fcntl(local_fd, F_SETFL, mode|O_NONBLOCK) == -1) fatal("fcntl failed"); + if (setupterm(NULL, STDOUT_FILENO, &error) != OK) { + switch (error) { + case 1: + log_warnx("hardcopy terminal cannot be used"); + return (-1); + case 0: + log_warnx("terminal type not found or unsuitable"); + return (-1); + case -1: + log_warnx("couldn't find terminfo database"); + return (-1); + } + } + for (i = 0; reqd[i] != NULL; i++) { + error = 0; + + for (j = 0; strfnames[j] != NULL; j++) { + if (strcmp(strfnames[j], reqd[i]) == 0) { + if (strcodes[j] == NULL) + error = -1; + break; + } + } + if (error != -1) { + for (j = 0; numfnames[j] != NULL; j++) { + if (strcmp(numfnames[j], reqd[i]) == 0) { + if (numcodes[j] == NULL) + error = -1; + break; + } + } + } + if (error != -1) { + for (j = 0; boolfnames[j] != NULL; j++) { + if (strcmp(boolfnames[j], reqd[i]) == 0) { + if (boolcodes[j] == NULL) + error = -1; + break; + } + } + } + + if (error == -1) { + log_warnx("required capability missing: %s", reqd[i]); + return (-1); + } + } + *in = local_in = buffer_create(BUFSIZ); *out = local_out = buffer_create(BUFSIZ); - setupterm(NULL, STDOUT_FILENO, NULL); - if (tcgetattr(local_fd, &local_tio) != 0) fatal("tcgetattr failed"); memset(&tio, 0, sizeof tio); |