mirror of
https://git.hardenedbsd.org/hardenedbsd/HardenedBSD.git
synced 2024-12-23 18:14:56 +01:00
021e5b9d1f
variable directly in tgetent by stderr or stdout output speed. It helps hide in non-standard __set_ospeed function and remove it from other sources (coming soon). Do prototype cleanup too.
754 lines
16 KiB
C
754 lines
16 KiB
C
/*
|
|
* tparm.c
|
|
*
|
|
* By Ross Ridge
|
|
* Public Domain
|
|
* 92/02/01 07:30:36
|
|
*
|
|
*/
|
|
|
|
#include <ctype.h>
|
|
#include <stdarg.h>
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
#include "termcap.h"
|
|
|
|
#ifdef USE_SCCS_IDS
|
|
static const char SCCSid[] = "@(#) mytinfo tparm.c 3.2 92/02/01 public domain, By Ross Ridge";
|
|
#endif
|
|
|
|
#ifndef MAX_PUSHED
|
|
#define MAX_PUSHED 32
|
|
#endif
|
|
|
|
#define ARG 1
|
|
#define NUM 2
|
|
|
|
#define INTEGER 1
|
|
#define STRING 2
|
|
|
|
#define MAX_LINE 640
|
|
|
|
typedef void* anyptr;
|
|
|
|
typedef struct stack_str {
|
|
int type;
|
|
int argnum;
|
|
int value;
|
|
} stack;
|
|
|
|
static stack S[MAX_PUSHED];
|
|
static stack vars['z'-'a'+1];
|
|
static int pos = 0;
|
|
|
|
static struct arg_str {
|
|
int type;
|
|
int integer;
|
|
char *string;
|
|
} arg_list[10];
|
|
|
|
static int argcnt;
|
|
|
|
static va_list tparm_args;
|
|
|
|
static int
|
|
pusharg(arg)
|
|
int arg; {
|
|
if (pos == MAX_PUSHED)
|
|
return 1;
|
|
S[pos].type = ARG;
|
|
S[pos++].argnum = arg;
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
pushnum(num)
|
|
int num; {
|
|
if (pos == MAX_PUSHED)
|
|
return 1;
|
|
S[pos].type = NUM;
|
|
S[pos++].value = num;
|
|
return 0;
|
|
}
|
|
|
|
/* VARARGS2 */
|
|
static int
|
|
getarg(argnum, type, p)
|
|
int argnum, type;
|
|
anyptr p; {
|
|
while (argcnt < argnum) {
|
|
arg_list[argcnt].type = INTEGER;
|
|
arg_list[argcnt++].integer = (int) va_arg(tparm_args, int);
|
|
}
|
|
if (argcnt > argnum) {
|
|
if (arg_list[argnum].type != type)
|
|
return 1;
|
|
else if (type == STRING)
|
|
*(char **)p = arg_list[argnum].string;
|
|
else
|
|
*(int *)p = arg_list[argnum].integer;
|
|
} else {
|
|
arg_list[argcnt].type = type;
|
|
if (type == STRING)
|
|
*(char **)p = arg_list[argcnt++].string
|
|
= (char *) va_arg(tparm_args, char *);
|
|
else
|
|
*(int *)p = arg_list[argcnt++].integer = (int) va_arg(tparm_args, int);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
|
|
static int
|
|
popstring(str)
|
|
char **str; {
|
|
if (pos-- == 0)
|
|
return 1;
|
|
if (S[pos].type != ARG)
|
|
return 1;
|
|
return(getarg(S[pos].argnum, STRING, (anyptr) str));
|
|
}
|
|
|
|
static int
|
|
popnum(num)
|
|
int *num; {
|
|
if (pos-- == 0)
|
|
return 1;
|
|
switch (S[pos].type) {
|
|
case ARG:
|
|
return (getarg(S[pos].argnum, INTEGER, (anyptr) num));
|
|
case NUM:
|
|
*num = S[pos].value;
|
|
return 0;
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
cvtchar(sp, c)
|
|
register char *sp, *c; {
|
|
switch(*sp) {
|
|
case '\\':
|
|
switch(*++sp) {
|
|
case '\'':
|
|
case '$':
|
|
case '\\':
|
|
case '%':
|
|
*c = *sp;
|
|
return 2;
|
|
case '\0':
|
|
*c = '\\';
|
|
return 1;
|
|
case '0':
|
|
if (sp[1] == '0' && sp[2] == '0') {
|
|
*c = '\0';
|
|
return 4;
|
|
}
|
|
*c = '\200'; /* '\0' ???? */
|
|
return 2;
|
|
default:
|
|
*c = *sp;
|
|
return 2;
|
|
}
|
|
default:
|
|
*c = *sp;
|
|
return 1;
|
|
}
|
|
}
|
|
|
|
static int termcap;
|
|
|
|
/* sigh... this has got to be the ugliest code I've ever written.
|
|
Trying to handle everything has its cost, I guess.
|
|
|
|
It actually isn't to hard to figure out if a given % code is supposed
|
|
to be interpeted with its termcap or terminfo meaning since almost
|
|
all terminfo codes are invalid unless something has been pushed on
|
|
the stack and termcap strings will never push things on the stack
|
|
(%p isn't used by termcap). So where we have a choice we make the
|
|
decision by wether or not somthing has been pushed on the stack.
|
|
The static variable termcap keeps track of this; it starts out set
|
|
to 1 and is incremented as each argument processed by a termcap % code,
|
|
however if something is pushed on the stack it's set to 0 and the
|
|
rest of the % codes are interpeted as terminfo % codes. Another way
|
|
of putting it is that if termcap equals one we haven't decided either
|
|
way yet, if it equals zero we're looking for terminfo codes, and if
|
|
its greater than 1 we're looking for termcap codes.
|
|
|
|
Terminfo % codes:
|
|
|
|
%% output a '%'
|
|
%[[:][-+# ][width][.precision]][doxXs]
|
|
output pop according to the printf format
|
|
%c output pop as a char
|
|
%'c' push character constant c.
|
|
%{n} push decimal constant n.
|
|
%p[1-9] push paramter [1-9]
|
|
%g[a-z] push variable [a-z]
|
|
%P[a-z] put pop in variable [a-z]
|
|
%l push the length of pop (a string)
|
|
%+ add pop to pop and push the result
|
|
%- subtract pop from pop and push the result
|
|
%* multiply pop and pop and push the result
|
|
%& bitwise and pop and pop and push the result
|
|
%| bitwise or pop and pop and push the result
|
|
%^ bitwise xor pop and pop and push the result
|
|
%~ push the bitwise not of pop
|
|
%= compare if pop and pop are equal and push the result
|
|
%> compare if pop is less than pop and push the result
|
|
%< compare if pop is greater than pop and push the result
|
|
%A logical and pop and pop and push the result
|
|
%O logical or pop and pop and push the result
|
|
%! push the logical not of pop
|
|
%? condition %t if_true [%e if_false] %;
|
|
if condtion evaulates as true then evaluate if_true,
|
|
else evaluate if_false. elseif's can be done:
|
|
%? cond %t true [%e cond2 %t true2] ... [%e condN %t trueN] [%e false] %;
|
|
%i add one to parameters 1 and 2. (ANSI)
|
|
|
|
Termcap Codes:
|
|
|
|
%% output a %
|
|
%. output parameter as a character
|
|
%d output parameter as a decimal number
|
|
%2 output parameter in printf format %02d
|
|
%3 output parameter in printf format %03d
|
|
%+x add the character x to parameter and output it as a character
|
|
(UW) %-x subtract parameter FROM the character x and output it as a char
|
|
(UW) %ax add the character x to parameter
|
|
(GNU) %a[+*-/=][cp]x
|
|
GNU arithmetic.
|
|
(UW) %sx subtract parameter FROM the character x
|
|
%>xy if parameter > character x then add character y to parameter
|
|
%B convert to BCD (parameter = (parameter/10)*16 + parameter%16)
|
|
%D Delta Data encode (parameter = parameter - 2*(paramter%16))
|
|
%i increment the first two parameters by one
|
|
%n xor the first two parameters by 0140
|
|
(GNU) %m xor the first two parameters by 0177
|
|
%r swap the first two parameters
|
|
(GNU) %b backup to previous parameter
|
|
(GNU) %f skip this parameter
|
|
|
|
Note the two definitions of %a, the GNU defintion is used if the characters
|
|
after the 'a' are valid, otherwise the UW definition is used.
|
|
|
|
(GNU) used by GNU Emacs termcap libraries
|
|
(UW) used by the University of Waterloo (MFCF) termcap libraries
|
|
|
|
*/
|
|
|
|
char *tparm(const char *str, ...) {
|
|
static char OOPS[] = "OOPS";
|
|
static char buf[MAX_LINE];
|
|
register const char *sp;
|
|
register char *dp;
|
|
register char *fmt;
|
|
char conv_char;
|
|
char scan_for;
|
|
int scan_depth = 0, if_depth;
|
|
static int i, j;
|
|
static char *s, c;
|
|
char fmt_buf[MAX_LINE];
|
|
char sbuf[MAX_LINE];
|
|
|
|
va_start(tparm_args, str);
|
|
|
|
sp = str;
|
|
dp = buf;
|
|
scan_for = 0;
|
|
if_depth = 0;
|
|
argcnt = 0;
|
|
pos = 0;
|
|
termcap = 1;
|
|
while(*sp != '\0') {
|
|
switch(*sp) {
|
|
case '\\':
|
|
if (scan_for) {
|
|
if (*++sp != '\0')
|
|
sp++;
|
|
break;
|
|
}
|
|
*dp++ = *sp++;
|
|
if (*sp != '\0')
|
|
*dp++ = *sp++;
|
|
break;
|
|
case '%':
|
|
sp++;
|
|
if (scan_for) {
|
|
if (*sp == scan_for && if_depth == scan_depth) {
|
|
if (scan_for == ';')
|
|
if_depth--;
|
|
scan_for = 0;
|
|
} else if (*sp == '?')
|
|
if_depth++;
|
|
else if (*sp == ';') {
|
|
if (if_depth == 0)
|
|
return OOPS;
|
|
else
|
|
if_depth--;
|
|
}
|
|
sp++;
|
|
break;
|
|
}
|
|
fmt = NULL;
|
|
switch(*sp) {
|
|
case '%':
|
|
*dp++ = *sp++;
|
|
break;
|
|
case '+':
|
|
if (!termcap) {
|
|
if (popnum(&j) || popnum(&i))
|
|
return OOPS;
|
|
i += j;
|
|
if (pushnum(i))
|
|
return OOPS;
|
|
sp++;
|
|
break;
|
|
}
|
|
;/* FALLTHROUGH */
|
|
case 'C':
|
|
if (*sp == 'C') {
|
|
if (getarg(termcap - 1, INTEGER, &i))
|
|
return OOPS;
|
|
if (i >= 96) {
|
|
i /= 96;
|
|
if (i == '$')
|
|
*dp++ = '\\';
|
|
*dp++ = i;
|
|
}
|
|
}
|
|
fmt = "%c";
|
|
/* FALLTHROUGH */
|
|
case 'a':
|
|
if (!termcap)
|
|
return OOPS;
|
|
if (getarg(termcap - 1, INTEGER, (anyptr) &i))
|
|
return OOPS;
|
|
if (*++sp == '\0')
|
|
return OOPS;
|
|
if ((sp[1] == 'p' || sp[1] == 'c')
|
|
&& sp[2] != '\0' && fmt == NULL) {
|
|
/* GNU aritmitic parameter, what they
|
|
realy need is terminfo. */
|
|
int val, lc;
|
|
if (sp[1] == 'p'
|
|
&& getarg(termcap - 1 + sp[2] - '@',
|
|
INTEGER, (anyptr) &val))
|
|
return OOPS;
|
|
if (sp[1] == 'c') {
|
|
lc = cvtchar(sp + 2, &c) + 2;
|
|
/* Mask out 8th bit so \200 can be
|
|
used for \0 as per GNU doc's */
|
|
val = c & 0177;
|
|
} else
|
|
lc = 2;
|
|
switch(sp[0]) {
|
|
case '=':
|
|
break;
|
|
case '+':
|
|
val = i + val;
|
|
break;
|
|
case '-':
|
|
val = i - val;
|
|
break;
|
|
case '*':
|
|
val = i * val;
|
|
break;
|
|
case '/':
|
|
val = i / val;
|
|
break;
|
|
default:
|
|
/* Not really GNU's %a after all... */
|
|
lc = cvtchar(sp, &c);
|
|
val = c + i;
|
|
break;
|
|
}
|
|
arg_list[termcap - 1].integer = val;
|
|
sp += lc;
|
|
break;
|
|
}
|
|
sp += cvtchar(sp, &c);
|
|
arg_list[termcap - 1].integer = c + i;
|
|
if (fmt == NULL)
|
|
break;
|
|
sp--;
|
|
/* FALLTHROUGH */
|
|
case '-':
|
|
if (!termcap) {
|
|
if (popnum(&j) || popnum(&i))
|
|
return OOPS;
|
|
i -= j;
|
|
if (pushnum(i))
|
|
return OOPS;
|
|
sp++;
|
|
break;
|
|
}
|
|
fmt = "%c";
|
|
/* FALLTHROUGH */
|
|
case 's':
|
|
if (termcap && (fmt == NULL || *sp == '-')) {
|
|
if (getarg(termcap - 1, INTEGER, &i))
|
|
return OOPS;
|
|
if (*++sp == '\0')
|
|
return OOPS;
|
|
sp += cvtchar(sp, &c);
|
|
arg_list[termcap - 1].integer = c - i;
|
|
if (fmt == NULL)
|
|
break;
|
|
sp--;
|
|
}
|
|
if (!termcap)
|
|
return OOPS;
|
|
;/* FALLTHROUGH */
|
|
case '.':
|
|
if (termcap && fmt == NULL)
|
|
fmt = "%c";
|
|
;/* FALLTHROUGH */
|
|
case 'd':
|
|
if (termcap && fmt == NULL)
|
|
fmt = "%d";
|
|
;/* FALLTHROUGH */
|
|
case '2':
|
|
if (termcap && fmt == NULL)
|
|
fmt = "%02d";
|
|
;/* FALLTHROUGH */
|
|
case '3':
|
|
if (termcap && fmt == NULL)
|
|
fmt = "%03d";
|
|
;/* FALLTHROUGH */
|
|
case ':': case ' ': case '#': case 'u':
|
|
case 'x': case 'X': case 'o': case 'c':
|
|
case '0': case '1': case '4': case '5':
|
|
case '6': case '7': case '8': case '9':
|
|
if (fmt == NULL) {
|
|
if (termcap)
|
|
return OOPS;
|
|
if (*sp == ':')
|
|
sp++;
|
|
fmt = fmt_buf;
|
|
*fmt++ = '%';
|
|
while(*sp != 's' && *sp != 'x' && *sp != 'X' && *sp != 'd' && *sp != 'o' && *sp != 'c' && *sp != 'u') {
|
|
if (*sp == '\0')
|
|
return OOPS;
|
|
*fmt++ = *sp++;
|
|
}
|
|
*fmt++ = *sp;
|
|
*fmt = '\0';
|
|
fmt = fmt_buf;
|
|
}
|
|
conv_char = fmt[strlen(fmt) - 1];
|
|
if (conv_char == 's') {
|
|
if (popstring(&s))
|
|
return OOPS;
|
|
sprintf(sbuf, fmt, s);
|
|
} else {
|
|
if (termcap) {
|
|
if (getarg(termcap++ - 1,
|
|
INTEGER, &i))
|
|
return OOPS;
|
|
} else
|
|
if (popnum(&i))
|
|
return OOPS;
|
|
if (i == 0 && conv_char == 'c')
|
|
strcpy(sbuf, "\000");
|
|
else
|
|
sprintf(sbuf, fmt, i);
|
|
}
|
|
sp++;
|
|
fmt = sbuf;
|
|
while(*fmt != '\0') {
|
|
if (*fmt == '$')
|
|
*dp++ = '\\';
|
|
*dp++ = *fmt++;
|
|
}
|
|
break;
|
|
case 'r':
|
|
if (!termcap || getarg(1, INTEGER, &i))
|
|
return OOPS;
|
|
arg_list[1].integer = arg_list[0].integer;
|
|
arg_list[0].integer = i;
|
|
sp++;
|
|
break;
|
|
case 'i':
|
|
if (getarg(1, INTEGER, &i)
|
|
|| arg_list[0].type != INTEGER)
|
|
return OOPS;
|
|
arg_list[1].integer++;
|
|
arg_list[0].integer++;
|
|
sp++;
|
|
break;
|
|
case 'n':
|
|
if (!termcap || getarg(1, INTEGER, &i))
|
|
return OOPS;
|
|
arg_list[0].integer ^= 0140;
|
|
arg_list[1].integer ^= 0140;
|
|
sp++;
|
|
break;
|
|
case '>':
|
|
if (!termcap) {
|
|
if (popnum(&j) || popnum(&i))
|
|
return OOPS;
|
|
i = (i > j);
|
|
if (pushnum(i))
|
|
return OOPS;
|
|
sp++;
|
|
break;
|
|
}
|
|
if (getarg(termcap-1, INTEGER, &i))
|
|
return OOPS;
|
|
sp += cvtchar(sp, &c);
|
|
if (i > c) {
|
|
sp += cvtchar(sp, &c);
|
|
arg_list[termcap-1].integer += c;
|
|
} else
|
|
sp += cvtchar(sp, &c);
|
|
sp++;
|
|
break;
|
|
case 'B':
|
|
if (!termcap || getarg(termcap-1, INTEGER, &i))
|
|
return OOPS;
|
|
arg_list[termcap-1].integer = 16*(i/10)+i%10;
|
|
sp++;
|
|
break;
|
|
case 'D':
|
|
if (!termcap || getarg(termcap-1, INTEGER, &i))
|
|
return OOPS;
|
|
arg_list[termcap-1].integer = i - 2 * (i % 16);
|
|
sp++;
|
|
break;
|
|
case 'p':
|
|
if (termcap > 1)
|
|
return OOPS;
|
|
if (*++sp == '\0')
|
|
return OOPS;
|
|
if (*sp == '0')
|
|
i = 9;
|
|
else
|
|
i = *sp - '1';
|
|
if (i < 0 || i > 9)
|
|
return OOPS;
|
|
if (pusharg(i))
|
|
return OOPS;
|
|
termcap = 0;
|
|
sp++;
|
|
break;
|
|
case 'P':
|
|
if (termcap || *++sp == '\0')
|
|
return OOPS;
|
|
i = *sp++ - 'a';
|
|
if (i < 0 || i > 25)
|
|
return OOPS;
|
|
if (pos-- == 0)
|
|
return OOPS;
|
|
switch(vars[i].type = S[pos].type) {
|
|
case ARG:
|
|
vars[i].argnum = S[pos].argnum;
|
|
break;
|
|
case NUM:
|
|
vars[i].value = S[pos].value;
|
|
break;
|
|
}
|
|
break;
|
|
case 'g':
|
|
if (termcap || *++sp == '\0')
|
|
return OOPS;
|
|
i = *sp++ - 'a';
|
|
if (i < 0 || i > 25)
|
|
return OOPS;
|
|
switch(vars[i].type) {
|
|
case ARG:
|
|
if (pusharg(vars[i].argnum))
|
|
return OOPS;
|
|
break;
|
|
case NUM:
|
|
if (pushnum(vars[i].value))
|
|
return OOPS;
|
|
break;
|
|
}
|
|
break;
|
|
case '\'':
|
|
if (termcap > 1)
|
|
return OOPS;
|
|
if (*++sp == '\0')
|
|
return OOPS;
|
|
sp += cvtchar(sp, &c);
|
|
if (pushnum(c) || *sp++ != '\'')
|
|
return OOPS;
|
|
termcap = 0;
|
|
break;
|
|
case '{':
|
|
if (termcap > 1)
|
|
return OOPS;
|
|
i = 0;
|
|
sp++;
|
|
while(isdigit(*sp))
|
|
i = 10 * i + *sp++ - '0';
|
|
if (*sp++ != '}' || pushnum(i))
|
|
return OOPS;
|
|
termcap = 0;
|
|
break;
|
|
case 'l':
|
|
if (termcap || popstring(&s))
|
|
return OOPS;
|
|
i = strlen(s);
|
|
if (pushnum(i))
|
|
return OOPS;
|
|
sp++;
|
|
break;
|
|
case '*':
|
|
if (termcap || popnum(&j) || popnum(&i))
|
|
return OOPS;
|
|
i *= j;
|
|
if (pushnum(i))
|
|
return OOPS;
|
|
sp++;
|
|
break;
|
|
case '/':
|
|
if (termcap || popnum(&j) || popnum(&i))
|
|
return OOPS;
|
|
i /= j;
|
|
if (pushnum(i))
|
|
return OOPS;
|
|
sp++;
|
|
break;
|
|
case 'm':
|
|
if (termcap) {
|
|
if (getarg(1, INTEGER, &i))
|
|
return OOPS;
|
|
arg_list[0].integer ^= 0177;
|
|
arg_list[1].integer ^= 0177;
|
|
sp++;
|
|
break;
|
|
}
|
|
if (popnum(&j) || popnum(&i))
|
|
return OOPS;
|
|
i %= j;
|
|
if (pushnum(i))
|
|
return OOPS;
|
|
sp++;
|
|
break;
|
|
case '&':
|
|
if (popnum(&j) || popnum(&i))
|
|
return OOPS;
|
|
i &= j;
|
|
if (pushnum(i))
|
|
return OOPS;
|
|
sp++;
|
|
break;
|
|
case '|':
|
|
if (popnum(&j) || popnum(&i))
|
|
return OOPS;
|
|
i |= j;
|
|
if (pushnum(i))
|
|
return OOPS;
|
|
sp++;
|
|
break;
|
|
case '^':
|
|
if (popnum(&j) || popnum(&i))
|
|
return OOPS;
|
|
i ^= j;
|
|
if (pushnum(i))
|
|
return OOPS;
|
|
sp++;
|
|
break;
|
|
case '=':
|
|
if (popnum(&j) || popnum(&i))
|
|
return OOPS;
|
|
i = (i == j);
|
|
if (pushnum(i))
|
|
return OOPS;
|
|
sp++;
|
|
break;
|
|
case '<':
|
|
if (popnum(&j) || popnum(&i))
|
|
return OOPS;
|
|
i = (i < j);
|
|
if (pushnum(i))
|
|
return OOPS;
|
|
sp++;
|
|
break;
|
|
case 'A':
|
|
if (popnum(&j) || popnum(&i))
|
|
return OOPS;
|
|
i = (i && j);
|
|
if (pushnum(i))
|
|
return OOPS;
|
|
sp++;
|
|
break;
|
|
case 'O':
|
|
if (popnum(&j) || popnum(&i))
|
|
return OOPS;
|
|
i = (i || j);
|
|
if (pushnum(i))
|
|
return OOPS;
|
|
sp++;
|
|
break;
|
|
case '!':
|
|
if (popnum(&i))
|
|
return OOPS;
|
|
i = !i;
|
|
if (pushnum(i))
|
|
return OOPS;
|
|
sp++;
|
|
break;
|
|
case '~':
|
|
if (popnum(&i))
|
|
return OOPS;
|
|
i = ~i;
|
|
if (pushnum(i))
|
|
return OOPS;
|
|
sp++;
|
|
break;
|
|
case '?':
|
|
if (termcap > 1)
|
|
return OOPS;
|
|
termcap = 0;
|
|
if_depth++;
|
|
sp++;
|
|
break;
|
|
case 't':
|
|
if (popnum(&i) || if_depth == 0)
|
|
return OOPS;
|
|
if (!i) {
|
|
scan_for = 'e';
|
|
scan_depth = if_depth;
|
|
}
|
|
sp++;
|
|
break;
|
|
case 'e':
|
|
if (if_depth == 0)
|
|
return OOPS;
|
|
scan_for = ';';
|
|
scan_depth = if_depth;
|
|
sp++;
|
|
break;
|
|
case ';':
|
|
if (if_depth-- == 0)
|
|
return OOPS;
|
|
sp++;
|
|
break;
|
|
case 'b':
|
|
if (--termcap < 1)
|
|
return OOPS;
|
|
sp++;
|
|
break;
|
|
case 'f':
|
|
if (!termcap++)
|
|
return OOPS;
|
|
sp++;
|
|
break;
|
|
}
|
|
break;
|
|
default:
|
|
if (scan_for)
|
|
sp++;
|
|
else
|
|
*dp++ = *sp++;
|
|
break;
|
|
}
|
|
}
|
|
va_end(tparm_args);
|
|
*dp = '\0';
|
|
return buf;
|
|
}
|