diff options
Diffstat (limited to 'misc/getttyent.c')
| -rw-r--r-- | misc/getttyent.c | 215 |
1 files changed, 0 insertions, 215 deletions
diff --git a/misc/getttyent.c b/misc/getttyent.c deleted file mode 100644 index 73002f52d1..0000000000 --- a/misc/getttyent.c +++ /dev/null @@ -1,215 +0,0 @@ -/* - * Copyright (c) 1989, 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. - * 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. - */ - -#if defined(LIBC_SCCS) && !defined(lint) -static char sccsid[] = "@(#)getttyent.c 8.1 (Berkeley) 6/4/93"; -#endif /* LIBC_SCCS and not lint */ - -#include <ttyent.h> -#include <stdio.h> -#include <stdio_ext.h> -#include <ctype.h> -#include <string.h> - -#define flockfile(s) _IO_flockfile (s) -#define funlockfile(s) _IO_funlockfile (s) - -static char zapchar; -static FILE *tf; - -struct ttyent * -__getttynam (const char *tty) -{ - struct ttyent *t; - - __setttyent(); - while ((t = __getttyent())) - if (!strcmp(tty, t->ty_name)) - break; - __endttyent(); - return (t); -} -weak_alias (__getttynam, getttynam) - -static char *skip (char *) __THROW internal_function; -static char *value (char *) __THROW internal_function; - -struct ttyent * -__getttyent (void) -{ - static struct ttyent tty; - int c; - char *p; -#define MAXLINELENGTH 100 - static char line[MAXLINELENGTH]; - - if (!tf && !__setttyent()) - return (NULL); - flockfile (tf); - for (;;) { - if (!__fgets_unlocked(p = line, sizeof(line), tf)) { - funlockfile (tf); - return (NULL); - } - /* skip lines that are too big */ - if (!strchr (p, '\n')) { - while ((c = getc_unlocked(tf)) != '\n' && c != EOF) - ; - continue; - } - while (isspace(*p)) - ++p; - if (*p && *p != '#') - break; - } - - zapchar = 0; - tty.ty_name = p; - p = skip(p); - if (!*(tty.ty_getty = p)) - tty.ty_getty = tty.ty_type = NULL; - else { - p = skip(p); - if (!*(tty.ty_type = p)) - tty.ty_type = NULL; - else - p = skip(p); - } - tty.ty_status = 0; - tty.ty_window = NULL; - -#define scmp(e) !strncmp(p, e, sizeof(e) - 1) && isspace(p[sizeof(e) - 1]) -#define vcmp(e) !strncmp(p, e, sizeof(e) - 1) && p[sizeof(e) - 1] == '=' - for (; *p; p = skip(p)) { - if (scmp(_TTYS_OFF)) - tty.ty_status &= ~TTY_ON; - else if (scmp(_TTYS_ON)) - tty.ty_status |= TTY_ON; - else if (scmp(_TTYS_SECURE)) - tty.ty_status |= TTY_SECURE; - else if (vcmp(_TTYS_WINDOW)) - tty.ty_window = value(p); - else - break; - } - /* We can release the lock only here since `zapchar' is global. */ - funlockfile(tf); - - if (zapchar == '#' || *p == '#') - while ((c = *++p) == ' ' || c == '\t') - ; - tty.ty_comment = p; - if (*p == 0) - tty.ty_comment = 0; - if ((p = strchr (p, '\n'))) - *p = '\0'; - return (&tty); -} -libc_hidden_def (__getttyent) -weak_alias (__getttyent, getttyent) - -#define QUOTED 1 - -/* - * Skip over the current field, removing quotes, and return a pointer to - * the next field. - */ -static char * -internal_function -skip (char *p) -{ - char *t; - int c, q; - - for (q = 0, t = p; (c = *p) != '\0'; p++) { - if (c == '"') { - q ^= QUOTED; /* obscure, but nice */ - continue; - } - if (q == QUOTED && *p == '\\' && *(p+1) == '"') - p++; - *t++ = *p; - if (q == QUOTED) - continue; - if (c == '#') { - zapchar = c; - *p = 0; - break; - } - if (c == '\t' || c == ' ' || c == '\n') { - zapchar = c; - *p++ = 0; - while ((c = *p) == '\t' || c == ' ' || c == '\n') - p++; - break; - } - } - *--t = '\0'; - return (p); -} - -static char * -internal_function -value (char *p) -{ - - return ((p = strchr (p, '=')) ? ++p : NULL); -} - -int -__setttyent (void) -{ - - if (tf) { - (void)rewind(tf); - return (1); - } else if ((tf = fopen(_PATH_TTYS, "rce"))) { - /* We do the locking ourselves. */ - __fsetlocking (tf, FSETLOCKING_BYCALLER); - return (1); - } - return (0); -} -libc_hidden_def (__setttyent) -weak_alias (__setttyent, setttyent) - -int -__endttyent (void) -{ - int rval; - - if (tf) { - rval = !(fclose(tf) == EOF); - tf = NULL; - return (rval); - } - return (1); -} -libc_hidden_def (__endttyent) -weak_alias (__endttyent, endttyent) |