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--- Libc/Libc-1725.40.4/gen/getttyent.c
+++ /dev/null
@@ -1,392 +0,0 @@
-/*
- * Copyright (c) 1999, 2005 Apple Computer, Inc. All rights reserved.
- *
- * @APPLE_LICENSE_HEADER_START@
- *
- * This file contains Original Code and/or Modifications of Original Code
- * as defined in and that are subject to the Apple Public Source License
- * Version 2.0 (the 'License'). You may not use this file except in
- * compliance with the License. Please obtain a copy of the License at
- * http://www.opensource.apple.com/apsl/ and read it before using this
- * file.
- *
- * The Original Code and all software distributed under the License are
- * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
- * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
- * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
- * Please see the License for the specific language governing rights and
- * limitations under the License.
- *
- * @APPLE_LICENSE_HEADER_END@
- */
-/*
- * 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.
- * 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.
- */
-
-#include "xlocale_private.h"
-
-#include <ttyent.h>
-#include <stdio.h>
-#include <ctype.h>
-#include <string.h>
-#include <stdlib.h>
-#include <regex.h>
-#include <limits.h>
-
-#pragma clang diagnostic push
-#pragma clang diagnostic ignored "-Wstrict-prototypes"
-
-static char zapchar;
-static FILE *tf;
-
-struct ttyent *
-getttynam(tty)
- const char *tty;
-{
- register struct ttyent *t;
-
- setttyent();
- while ((t = getttyent()) != NULL)
- if (!strcmp(tty, t->ty_name))
- break;
- endttyent();
- return (t);
-}
-
-static char *skip(), *value();
-
-/*
- * 4372480: Support for sequences in the tty name. Expressions like [000-999]
- * for decimal sequences and [0x0-0xf] for hexidecimal sequences causes a
- * sequence of all combinations of names to be returned by getttyent().
- *
- * There is also a slot=nn option, which will cause getttyent() to return
- * non-existent ttyent structs until the slot number nn is reached. Note, slot
- * numbers begin at 1.
- */
-struct seq {
- int first;
- int count;
- int index;
- char fmt[NAME_MAX + 17];
-};
-
-static const char *brapat = "\\[(.*)]";
-static regex_t brapreg;
-static const char *decpat = "^([0-9]+)-([0-9]+)$";
-static regex_t decpreg;
-static const char *hexpat = "^0x([0-9a-f]+)-0x([0-9a-f]+)$";
-static regex_t hexpreg;
-static struct seq *seq = NULL;
-static int slot;
-
-struct ttyent *
-getttyent(void)
-{
- static struct ttyent tty;
- static const struct ttyent nonexistent = {
- "\01", /* this shouldn't match anything */
- NULL,
- NULL,
- 0,
- NULL,
- NULL,
- NULL
- };
- register int c;
- register char *p;
-#define MAXLINELENGTH 1024
- static char *line = NULL;
- locale_t loc = __current_locale();
- int newslot, hex;
- long b, e;
- regmatch_t match[3], save, bracket;
-
- if ( line == NULL ) {
- line = malloc(MAXLINELENGTH);
- if( line == NULL )
- return NULL;
- }
-
- if (!tf && !setttyent())
- return (NULL);
-
-restart:
- if (slot < seq->first) {
- /*
- * the slot= option was set, and we are returning non-existent
- * entries until we catch up.
- */
- slot++;
- return (struct ttyent *)&nonexistent;
- }
-
- if (seq->count > 0) {
- /*
- * generate the next tty name; the rest of the tty entries
- * is the same.
- */
- sprintf(tty.ty_name, seq->fmt, seq->index++);
- slot++;
- seq->count--;
- return &tty;
- }
-
- if (slot == seq->first) {
- /*
- * this was a regular entry with slot=
- */
- slot++;
- return &tty;
- }
-
- for (;;) {
- if (!fgets(p = line, MAXLINELENGTH, tf))
- return (NULL);
- /* skip lines that are too big */
- if (!index(p, '\n')) {
- while ((c = getc(tf)) != '\n' && c != EOF)
- ;
- continue;
- }
- while (isspace_l(*p, loc))
- ++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;
- tty.ty_onerror = NULL;
- tty.ty_onoption = NULL;
-
-#define scmp(e) !strncmp(p, e, sizeof(e) - 1) && isspace_l(p[sizeof(e) - 1], loc)
-#define vcmp(e) !strncmp(p, e, sizeof(e) - 1) && p[sizeof(e) - 1] == '='
- newslot = -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 if (vcmp(_TTYS_ONERROR))
- tty.ty_onerror = value(p);
- else if (vcmp(_TTYS_ONOPTION))
- tty.ty_onoption = value(p);
- else if (vcmp(_TTYS_SLOT)) {
- char *slotstr = value(p);
- if (slotstr)
- newslot = atoi(slotstr);
- } else
- break;
- }
-
- if (zapchar == '#' || *p == '#')
- while ((c = *++p) == ' ' || c == '\t')
- ;
- tty.ty_comment = p;
- if (*p == 0)
- tty.ty_comment = 0;
- if ((p = index(p, '\n')) != NULL)
- *p = '\0';
-
- /* check if tty.tyname has a sequence */
- if (regexec(&brapreg, tty.ty_name, 3, match, 0) != 0)
- goto out;
-
- /*
- * save the range of the bracketed range, so we can find the strings
- * before and after
- */
- bracket = match[0];
- /* use REG_STARTEND to limit matching with the bracketed range */
- match[0] = save = match[1];
- if (regexec(&decpreg, tty.ty_name, 3, match, REG_STARTEND) == 0) {
- /* a decimal range */
- b = strtol(tty.ty_name + match[1].rm_so, NULL, 10);
- e = strtol(tty.ty_name + match[2].rm_so, NULL, 10);
- hex = 0;
- } else {
- match[0] = save;
- if (regexec(&hexpreg, tty.ty_name, 3, match, REG_STARTEND) == 0) {
- /* a hexidecimal range */
- b = strtol(tty.ty_name + match[1].rm_so, NULL, 16);
- e = strtol(tty.ty_name + match[2].rm_so, NULL, 16);
- hex = 1;
- } else
- goto out;
- }
- if (b > e) /* skip */
- goto restart;
-
- /* seq->first is already less than slot, so just leave it */
- seq->count = (int)(e - b + 1);
- seq->index = (int)(b);
- /*
- * The fmt string contains the characters before the bracket, the
- * a format specifier (either decimal or hex) and any characters
- * after the bracket. Note that the length of the lower range is
- * use as a minimum digit length, with zero fill, so the format
- * specifier will look something like %03d.
- */
- sprintf(seq->fmt, "%.*s%%0%d%c%s",
- (int)bracket.rm_so, tty.ty_name,
- (int)(match[1].rm_eo - match[1].rm_so),
- hex ? 'x' : 'd',
- tty.ty_name + bracket.rm_eo);
-
-out:
- if (newslot > slot) {
- /* set up to skip until newslot */
- seq->first = newslot;
- goto restart;
- }
- if (seq->count > 0) /* restart if we are doing a sequence */
- goto restart;
- /* regular single value return */
- slot++;
- return (&tty);
-}
-
-#define QUOTED 1
-
-/*
- * Skip over the current field, removing quotes, and return a pointer to
- * the next field.
- */
-static char *
-skip(p)
- register char *p;
-{
- register char *t;
- register 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 *
-value(p)
- register char *p;
-{
-
- return ((p = index(p, '=')) ? ++p : NULL);
-}
-
-int
-setttyent()
-{
-
- /* initialize seq and the three regexp patterns */
- if (!seq) {
- if (regcomp(&brapreg, brapat, REG_EXTENDED) != 0)
- return 0;
- if (regcomp(&decpreg, decpat, REG_EXTENDED) != 0) {
- regfree(&brapreg);
- return 0;
- }
- if (regcomp(&hexpreg, hexpat, REG_EXTENDED | REG_ICASE) != 0) {
- regfree(&decpreg);
- regfree(&brapreg);
- return 0;
- }
- if ((seq = malloc(sizeof(struct seq))) == NULL) {
- regfree(&hexpreg);
- regfree(&decpreg);
- regfree(&brapreg);
- return 0;
- }
- }
- seq->first = seq->count = 0;
- slot = 1;
-
- if (tf) {
- (void)rewind(tf);
- return (1);
- } else if ((tf = fopen(_PATH_TTYS, "r")) != NULL)
- return (1);
- return (0);
-}
-
-int
-endttyent()
-{
- int rval;
-
- if (tf) {
- rval = !(fclose(tf) == EOF);
- tf = NULL;
- return (rval);
- }
- return (1);
-}
-#pragma clang diagnostic pop
-