aboutsummaryrefslogtreecommitdiff
path: root/misc/getttyent.c
diff options
context:
space:
mode:
authorZack Weinberg <zackw@panix.com>2017-06-08 15:39:03 -0400
committerZack Weinberg <zackw@panix.com>2017-06-08 15:39:03 -0400
commit5046dbb4a7eba5eccfd258f92f4735c9ffc8d069 (patch)
tree4470480d904b65cf14ca524f96f79eca818c3eaf /misc/getttyent.c
parent199fc19d3aaaf57944ef036e15904febe877fc93 (diff)
downloadglibc-zack/build-layout-experiment.tar
glibc-zack/build-layout-experiment.tar.gz
glibc-zack/build-layout-experiment.tar.bz2
glibc-zack/build-layout-experiment.zip
Prepare for radical source tree reorganization.zack/build-layout-experiment
All top-level files and directories are moved into a temporary storage directory, REORG.TODO, except for files that will certainly still exist in their current form at top level when we're done (COPYING, COPYING.LIB, LICENSES, NEWS, README), all old ChangeLog files (which are moved to the new directory OldChangeLogs, instead), and the generated file INSTALL (which is just deleted; in the new order, there will be no generated files checked into version control).
Diffstat (limited to 'misc/getttyent.c')
-rw-r--r--misc/getttyent.c215
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)