File: [local] / src / usr.bin / vi / common / options_f.c (download)
Revision 1.7, Tue Oct 27 23:59:47 2009 UTC (14 years, 7 months ago) by deraadt
Branch: MAIN
CVS Tags: OPENBSD_5_6_BASE, OPENBSD_5_6, OPENBSD_5_5_BASE, OPENBSD_5_5, OPENBSD_5_4_BASE, OPENBSD_5_4, OPENBSD_5_3_BASE, OPENBSD_5_3, OPENBSD_5_2_BASE, OPENBSD_5_2, OPENBSD_5_1_BASE, OPENBSD_5_1, OPENBSD_5_0_BASE, OPENBSD_5_0, OPENBSD_4_9_BASE, OPENBSD_4_9, OPENBSD_4_8_BASE, OPENBSD_4_8, OPENBSD_4_7_BASE, OPENBSD_4_7
Changes since 1.6: +1 -5 lines
rcsid[] and sccsid[] and copyright[] are essentially unmaintained (and
unmaintainable). these days, people use source. these id's do not provide
any benefit, and do hurt the small install media
(the 33,000 line diff is essentially mechanical)
ok with the idea millert, ok dms
|
/* $OpenBSD: options_f.c,v 1.7 2009/10/27 23:59:47 deraadt Exp $ */
/*-
* Copyright (c) 1993, 1994
* The Regents of the University of California. All rights reserved.
* Copyright (c) 1993, 1994, 1995, 1996
* Keith Bostic. All rights reserved.
*
* See the LICENSE file for redistribution information.
*/
#include "config.h"
#include <sys/types.h>
#include <sys/queue.h>
#include <sys/stat.h>
#include <bitstring.h>
#include <ctype.h>
#include <errno.h>
#include <limits.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "common.h"
/*
* PUBLIC: int f_altwerase(SCR *, OPTION *, char *, u_long *);
*/
int
f_altwerase(sp, op, str, valp)
SCR *sp;
OPTION *op;
char *str;
u_long *valp;
{
if (!*valp)
O_CLR(sp, O_TTYWERASE);
return (0);
}
/*
* PUBLIC: int f_columns(SCR *, OPTION *, char *, u_long *);
*/
int
f_columns(sp, op, str, valp)
SCR *sp;
OPTION *op;
char *str;
u_long *valp;
{
/* Validate the number. */
if (*valp < MINIMUM_SCREEN_COLS) {
msgq(sp, M_ERR, "040|Screen columns too small, less than %d",
MINIMUM_SCREEN_COLS);
return (1);
}
/*
* !!!
* It's not uncommon for allocation of huge chunks of memory to cause
* core dumps on various systems. So, we prune out numbers that are
* "obviously" wrong. Vi will not work correctly if it has the wrong
* number of lines/columns for the screen, but at least we don't drop
* core.
*/
#define MAXIMUM_SCREEN_COLS 500
if (*valp > MAXIMUM_SCREEN_COLS) {
msgq(sp, M_ERR, "041|Screen columns too large, greater than %d",
MAXIMUM_SCREEN_COLS);
return (1);
}
return (0);
}
/*
* PUBLIC: int f_lines(SCR *, OPTION *, char *, u_long *);
*/
int
f_lines(sp, op, str, valp)
SCR *sp;
OPTION *op;
char *str;
u_long *valp;
{
/* Validate the number. */
if (*valp < MINIMUM_SCREEN_ROWS) {
msgq(sp, M_ERR, "042|Screen lines too small, less than %d",
MINIMUM_SCREEN_ROWS);
return (1);
}
/*
* !!!
* It's not uncommon for allocation of huge chunks of memory to cause
* core dumps on various systems. So, we prune out numbers that are
* "obviously" wrong. Vi will not work correctly if it has the wrong
* number of lines/columns for the screen, but at least we don't drop
* core.
*/
#define MAXIMUM_SCREEN_ROWS 500
if (*valp > MAXIMUM_SCREEN_ROWS) {
msgq(sp, M_ERR, "043|Screen lines too large, greater than %d",
MAXIMUM_SCREEN_ROWS);
return (1);
}
/*
* Set the value, and the related scroll value. If no window
* value set, set a new default window.
*/
o_set(sp, O_LINES, 0, NULL, *valp);
if (*valp == 1) {
sp->defscroll = 1;
if (O_VAL(sp, O_WINDOW) == O_D_VAL(sp, O_WINDOW) ||
O_VAL(sp, O_WINDOW) > *valp) {
o_set(sp, O_WINDOW, 0, NULL, 1);
o_set(sp, O_WINDOW, OS_DEF, NULL, 1);
}
} else {
sp->defscroll = (*valp - 1) / 2;
if (O_VAL(sp, O_WINDOW) == O_D_VAL(sp, O_WINDOW) ||
O_VAL(sp, O_WINDOW) > *valp) {
o_set(sp, O_WINDOW, 0, NULL, *valp - 1);
o_set(sp, O_WINDOW, OS_DEF, NULL, *valp - 1);
}
}
return (0);
}
/*
* PUBLIC: int f_lisp(SCR *, OPTION *, char *, u_long *);
*/
int
f_lisp(sp, op, str, valp)
SCR *sp;
OPTION *op;
char *str;
u_long *valp;
{
msgq(sp, M_ERR, "044|The lisp option is not implemented");
return (0);
}
/*
* PUBLIC: int f_msgcat(SCR *, OPTION *, char *, u_long *);
*/
int
f_msgcat(sp, op, str, valp)
SCR *sp;
OPTION *op;
char *str;
u_long *valp;
{
(void)msg_open(sp, str);
return (0);
}
/*
* PUBLIC: int f_paragraph(SCR *, OPTION *, char *, u_long *);
*/
int
f_paragraph(sp, op, str, valp)
SCR *sp;
OPTION *op;
char *str;
u_long *valp;
{
if (strlen(str) & 1) {
msgq(sp, M_ERR,
"048|The paragraph option must be in two character groups");
return (1);
}
return (0);
}
/*
* PUBLIC: int f_print(SCR *, OPTION *, char *, u_long *);
*/
int
f_print(sp, op, str, valp)
SCR *sp;
OPTION *op;
char *str;
u_long *valp;
{
/* Reinitialize the key fast lookup table. */
v_key_ilookup(sp);
/* Reformat the screen. */
F_SET(sp, SC_SCR_REFORMAT);
return (0);
}
/*
* PUBLIC: int f_readonly(SCR *, OPTION *, char *, u_long *);
*/
int
f_readonly(sp, op, str, valp)
SCR *sp;
OPTION *op;
char *str;
u_long *valp;
{
/*
* !!!
* See the comment in exf.c.
*/
if (*valp)
F_CLR(sp, SC_READONLY);
else
F_SET(sp, SC_READONLY);
return (0);
}
/*
* PUBLIC: int f_recompile(SCR *, OPTION *, char *, u_long *);
*/
int
f_recompile(sp, op, str, valp)
SCR *sp;
OPTION *op;
char *str;
u_long *valp;
{
if (F_ISSET(sp, SC_RE_SEARCH)) {
regfree(&sp->re_c);
F_CLR(sp, SC_RE_SEARCH);
}
if (F_ISSET(sp, SC_RE_SUBST)) {
regfree(&sp->subre_c);
F_CLR(sp, SC_RE_SUBST);
}
return (0);
}
/*
* PUBLIC: int f_reformat(SCR *, OPTION *, char *, u_long *);
*/
int
f_reformat(sp, op, str, valp)
SCR *sp;
OPTION *op;
char *str;
u_long *valp;
{
F_SET(sp, SC_SCR_REFORMAT);
return (0);
}
/*
* PUBLIC: int f_section(SCR *, OPTION *, char *, u_long *);
*/
int
f_section(sp, op, str, valp)
SCR *sp;
OPTION *op;
char *str;
u_long *valp;
{
if (strlen(str) & 1) {
msgq(sp, M_ERR,
"049|The section option must be in two character groups");
return (1);
}
return (0);
}
/*
* PUBLIC: int f_ttywerase(SCR *, OPTION *, char *, u_long *);
*/
int
f_ttywerase(sp, op, str, valp)
SCR *sp;
OPTION *op;
char *str;
u_long *valp;
{
if (!*valp)
O_CLR(sp, O_ALTWERASE);
return (0);
}
/*
* PUBLIC: int f_w300(SCR *, OPTION *, char *, u_long *);
*/
int
f_w300(sp, op, str, valp)
SCR *sp;
OPTION *op;
char *str;
u_long *valp;
{
u_long v;
/* Historical behavior for w300 was < 1200. */
if (sp->gp->scr_baud(sp, &v))
return (1);
if (v >= 1200)
return (0);
return (f_window(sp, op, str, valp));
}
/*
* PUBLIC: int f_w1200(SCR *, OPTION *, char *, u_long *);
*/
int
f_w1200(sp, op, str, valp)
SCR *sp;
OPTION *op;
char *str;
u_long *valp;
{
u_long v;
/* Historical behavior for w1200 was == 1200. */
if (sp->gp->scr_baud(sp, &v))
return (1);
if (v < 1200 || v > 4800)
return (0);
return (f_window(sp, op, str, valp));
}
/*
* PUBLIC: int f_w9600(SCR *, OPTION *, char *, u_long *);
*/
int
f_w9600(sp, op, str, valp)
SCR *sp;
OPTION *op;
char *str;
u_long *valp;
{
u_long v;
/* Historical behavior for w9600 was > 1200. */
if (sp->gp->scr_baud(sp, &v))
return (1);
if (v <= 4800)
return (0);
return (f_window(sp, op, str, valp));
}
/*
* PUBLIC: int f_window(SCR *, OPTION *, char *, u_long *);
*/
int
f_window(sp, op, str, valp)
SCR *sp;
OPTION *op;
char *str;
u_long *valp;
{
if (*valp >= O_VAL(sp, O_LINES) - 1 &&
(*valp = O_VAL(sp, O_LINES) - 1) == 0)
*valp = 1;
return (0);
}
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