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f9bcf9cabf
understand which code paths aren't possible. This commit eliminates 117 false positive bug reports of the form "allocate memory; error out if pointer is NULL; use pointer".
128 lines
3.5 KiB
C
128 lines
3.5 KiB
C
/*-
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* Copyright (c) 1991, 1993, 1994
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef lint
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#if 0
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static char sccsid[] = "@(#)gfmt.c 8.6 (Berkeley) 4/2/94";
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#endif
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#endif /* not lint */
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/types.h>
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#include <err.h>
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#include <stdio.h>
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#include <string.h>
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#include "stty.h"
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#include "extern.h"
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static void gerr(const char *s) __dead2;
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static void
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gerr(const char *s)
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{
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if (s)
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errx(1, "illegal gfmt1 option -- %s", s);
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else
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errx(1, "illegal gfmt1 option");
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}
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void
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gprint(struct termios *tp, struct winsize *wp __unused, int ldisc __unused)
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{
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struct cchar *cp;
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(void)printf("gfmt1:cflag=%lx:iflag=%lx:lflag=%lx:oflag=%lx:",
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(u_long)tp->c_cflag, (u_long)tp->c_iflag, (u_long)tp->c_lflag,
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(u_long)tp->c_oflag);
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for (cp = cchars1; cp->name; ++cp)
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(void)printf("%s=%x:", cp->name, tp->c_cc[cp->sub]);
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(void)printf("ispeed=%lu:ospeed=%lu\n",
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(u_long)cfgetispeed(tp), (u_long)cfgetospeed(tp));
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}
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void
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gread(struct termios *tp, char *s)
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{
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struct cchar *cp;
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char *ep, *p;
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long tmp;
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if ((s = strchr(s, ':')) == NULL)
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gerr(NULL);
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for (++s; s != NULL;) {
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p = strsep(&s, ":\0");
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if (!p || !*p)
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break;
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if (!(ep = strchr(p, '=')))
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gerr(p);
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*ep++ = '\0';
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(void)sscanf(ep, "%lx", (u_long *)&tmp);
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#define CHK(s) (*p == s[0] && !strcmp(p, s))
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if (CHK("cflag")) {
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tp->c_cflag = tmp;
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continue;
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}
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if (CHK("iflag")) {
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tp->c_iflag = tmp;
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continue;
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}
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if (CHK("ispeed")) {
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(void)sscanf(ep, "%ld", &tmp);
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tp->c_ispeed = tmp;
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continue;
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}
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if (CHK("lflag")) {
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tp->c_lflag = tmp;
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continue;
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}
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if (CHK("oflag")) {
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tp->c_oflag = tmp;
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continue;
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}
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if (CHK("ospeed")) {
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(void)sscanf(ep, "%ld", &tmp);
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tp->c_ospeed = tmp;
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continue;
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}
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for (cp = cchars1; cp->name != NULL; ++cp)
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if (CHK(cp->name)) {
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if (cp->sub == VMIN || cp->sub == VTIME)
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(void)sscanf(ep, "%ld", &tmp);
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tp->c_cc[cp->sub] = tmp;
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break;
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}
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if (cp->name == NULL)
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gerr(p);
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}
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}
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