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config.c
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/*
* config - configuration routines
*
* Copyright (C) 1999-2007 David I. Bell and Landon Curt Noll
*
* Primary author: David I. Bell
*
* Calc is open software; you can redistribute it and/or modify it under
* the terms of the version 2.1 of the GNU Lesser General Public License
* as published by the Free Software Foundation.
*
* Calc is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General
* Public License for more details.
*
* A copy of version 2.1 of the GNU Lesser General Public License is
* distributed with calc under the filename COPYING-LGPL. You should have
* received a copy with calc; if not, write to Free Software Foundation, Inc.
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* Under source code control: 1991/07/20 00:21:56
* File existed as early as: 1991
*
* Share and enjoy! :-) http://www.isthe.com/chongo/tech/comp/calc/
*/
#include <stdio.h>
#include "have_times.h"
#if defined(HAVE_TIME_H)
#include <time.h>
#endif
#if defined(HAVE_TIMES_H)
#include <times.h>
#endif
#if defined(HAVE_SYS_TIME_H)
#include <sys/time.h>
#endif
#if defined(HAVE_SYS_TIMES_H)
#include <sys/times.h>
#endif
#include "calc.h"
#include "token.h"
#include "zrand.h"
#include "block.h"
#include "nametype.h"
#include "config.h"
#include "str.h"
#include "custom.h"
#include "have_strdup.h"
#if !defined(HAVE_STRDUP)
# define strdup(x) calc_strdup((CONST char *)(x))
#endif /* HAVE_STRDUP */
/*
* deal with systems that lack a defined CLK_TCK
*/
#if defined(CLK_TCK)
# define CALC_HZ ((long)(CLK_TCK))
#else
# define CALC_HZ (0L) /* no defined clock tick rate */
#endif
/*
* Table of configuration types that can be set or read.
*/
NAMETYPE configs[] = {
{"all", CONFIG_ALL},
{"mode", CONFIG_MODE},
{"mode2", CONFIG_MODE2},
{"display", CONFIG_DISPLAY},
{"epsilon", CONFIG_EPSILON},
/*epsilonprec -- tied to epsilon not a configuration type*/
{"trace", CONFIG_TRACE},
{"maxprint", CONFIG_MAXPRINT},
{"mul2", CONFIG_MUL2},
{"sq2", CONFIG_SQ2},
{"pow2", CONFIG_POW2},
{"redc2", CONFIG_REDC2},
{"tilde", CONFIG_TILDE},
{"tab", CONFIG_TAB},
{"quomod", CONFIG_QUOMOD},
{"quo", CONFIG_QUO},
{"mod", CONFIG_MOD},
{"sqrt", CONFIG_SQRT},
{"appr", CONFIG_APPR},
{"cfappr", CONFIG_CFAPPR},
{"cfsim", CONFIG_CFSIM},
{"outround", CONFIG_OUTROUND},
{"round", CONFIG_ROUND},
{"leadzero", CONFIG_LEADZERO},
{"fullzero", CONFIG_FULLZERO},
{"maxscan", CONFIG_MAXSCAN},
{"maxerr", CONFIG_MAXSCAN}, /* old name for maxscan */
{"prompt", CONFIG_PROMPT},
{"more", CONFIG_MORE},
{"blkmaxprint", CONFIG_BLKMAXPRINT},
{"blkverbose", CONFIG_BLKVERBOSE},
{"blkbase", CONFIG_BLKBASE},
{"blkfmt", CONFIG_BLKFMT},
{"resource_debug", CONFIG_RESOURCE_DEBUG},
{"lib_debug", CONFIG_RESOURCE_DEBUG},
{"calc_debug", CONFIG_CALC_DEBUG},
{"user_debug", CONFIG_USER_DEBUG},
{"verbose_quit",CONFIG_VERBOSE_QUIT},
{"ctrl_d", CONFIG_CTRL_D},
{"ctrl-d", CONFIG_CTRL_D}, /* alias for ctrl_d */
{"program", CONFIG_PROGRAM},
{"basename", CONFIG_BASENAME},
{"windows", CONFIG_WINDOWS},
{"cygwin", CONFIG_CYGWIN},
{"compile_custom", CONFIG_COMPILE_CUSTOM},
{"allow_custom", CONFIG_ALLOW_CUSTOM},
{"version", CONFIG_VERSION},
{"baseb", CONFIG_BASEB},
{"redecl_warn", CONFIG_REDECL_WARN},
{"dupvar_warn", CONFIG_DUPVAR_WARN},
{"hz", CONFIG_HZ},
{NULL, 0}
};
/*
* configurations
*/
CONFIG oldstd = { /* backward compatible standard configuration */
MODE_INITIAL, /* current output mode */
MODE2_INITIAL, /* current secondary output mode */
20, /* current output digits for float or exp */
NULL, /* loaded in at startup - default error for real functions */
EPSILONPREC_DEFAULT, /* binary precision of epsilon */
FALSE, /* tracing flags */
MAXPRINT_DEFAULT, /* number of elements to print */
MUL_ALG2, /* size of number to use multiply alg 2 */
SQ_ALG2, /* size of number to use square alg 2 */
POW_ALG2, /* size of modulus to use REDC for powers */
REDC_ALG2, /* size of modulus to use REDC algorithm 2 */
TRUE, /* ok to print a tilde on approximations */
TRUE, /* ok to print tab before numeric values */
0, /* quomod() default rounding mode */
2, /* quotient // default rounding mode */
0, /* mod % default rounding mode */
24, /* sqrt() default rounding mode */
24, /* appr() default rounding mode */
0, /* cfappr() default rounding mode */
8, /* cfsim() default rounding mode */
2, /* output default rounding mode */
24, /* round()/bround() default rounding mode */
FALSE, /* ok to print leading 0 before decimal pt */
0, /* ok to print trailing 0's */
MAXSCANCOUNT, /* max scan errors before abort */
PROMPT1, /* normal prompt */
PROMPT2, /* prompt when inside multi-line input */
BLK_DEF_MAXPRINT, /* number of octets of a block to print */
FALSE, /* skip duplicate block output lines */
BLK_BASE_HEX, /* block octet print base */
BLK_FMT_HD_STYLE, /* block output format */
0, /* internal calc debug level */
3, /* calc resource file debug level */
0, /* user defined debug level */
FALSE, /* print Quit or abort executed messages */
CTRL_D_VIRGIN_EOF, /* ^D only exits on virgin lines */
NULL, /* our name */
NULL, /* basename of our name */
#if defined(_WIN32)
TRUE, /* running under windows */
#else
FALSE, /* congrats, you are not using windows */
#endif
#if defined(__CYGWIN__)
TRUE, /* compiled under cygwin */
#else
FALSE, /* not compiled with cygwin */
#endif
#if defined(CUSTOM)
TRUE, /* compiled with -DCUSTOM */
#else
FALSE, /* compiled without -DCUSTOM */
#endif
&allow_custom, /* *TRUE=> custom functions are enabled */
NULL, /* version */
BASEB, /* base for calculations */
TRUE, /* warn when redeclaring */
TRUE, /* warn when variable names collide */
};
CONFIG newstd = { /* new non-backward compatible configuration */
MODE_INITIAL, /* current output mode */
MODE2_INITIAL, /* current output mode */
20, /* current output digits for float or exp */
NULL, /* loaded in at startup - default error for real functions */
EPSILONPREC_DEFAULT, /* binary precision of epsilon */
FALSE, /* tracing flags */
MAXPRINT_DEFAULT, /* number of elements to print */
MUL_ALG2, /* size of number to use multiply alg 2 */
SQ_ALG2, /* size of number to use square alg 2 */
POW_ALG2, /* size of modulus to use REDC for powers */
REDC_ALG2, /* size of modulus to use REDC algorithm 2 */
TRUE, /* ok to print a tilde on approximations */
TRUE, /* ok to print tab before numeric values */
0, /* quomod() default rounding mode */
2, /* quotient // default rounding mode */
0, /* mod % default rounding mode */
24, /* sqrt() default rounding mode */
24, /* appr() default rounding mode */
0, /* cfappr() default rounding mode */
8, /* cfsim() default rounding mode */
24, /* output default rounding mode */
24, /* round()/bround() default rounding mode */
TRUE, /* ok to print leading 0 before decimal pt */
0, /* ok to print trailing 0's */
MAXSCANCOUNT, /* max scan errors before abort */
"; ", /* normal prompt */
";; ", /* prompt when inside multi-line input */
BLK_DEF_MAXPRINT, /* number of octets of a block to print */
FALSE, /* skip duplicate block output lines */
BLK_BASE_HEX, /* block octet print base */
BLK_FMT_HD_STYLE, /* block output format */
0, /* internal calc debug level */
3, /* calc resource file debug level */
0, /* user defined debug level */
FALSE, /* print Quit or abort executed messages */
CTRL_D_VIRGIN_EOF, /* ^D only exits on virgin lines */
NULL, /* our name */
NULL, /* basename of our name */
#if defined(_WIN32)
TRUE, /* running under windows */
#else
FALSE, /* congrats, you are not using windows */
#endif
#if defined(__CYGWIN__)
TRUE, /* compiled under cygwin */
#else
FALSE, /* not compiled with cygwin */
#endif
#if defined(CUSTOM)
TRUE, /* compiled with -DCUSTOM */
#else
FALSE, /* compiled without -DCUSTOM */
#endif
&allow_custom, /* *TRUE=> custom functions are enabled */
NULL, /* version */
BASEB, /* base for calculations */
TRUE, /* warn when redeclaring */
TRUE, /* warn when variable names collide */
};
CONFIG *conf = NULL; /* loaded in at startup - current configuration */
/*
* Possible output modes.
*/
STATIC NAMETYPE modes[] = {
{"fraction", MODE_FRAC},
{"frac", MODE_FRAC},
{"integer", MODE_INT},
{"int", MODE_INT},
{"real", MODE_REAL},
{"float", MODE_REAL},
{"default", MODE_INITIAL}, /* MODE_REAL */
{"scientific", MODE_EXP},
{"sci", MODE_EXP},
{"exp", MODE_EXP},
{"hexadecimal", MODE_HEX},
{"hex", MODE_HEX},
{"octal", MODE_OCTAL},
{"oct", MODE_OCTAL},
{"binary", MODE_BINARY},
{"bin", MODE_BINARY},
{"off", MODE2_OFF},
{NULL, 0}
};
/*
* Possible block base output modes
*/
STATIC NAMETYPE blk_base[] = {
{"hexadecimal", BLK_BASE_HEX},
{"hex", BLK_BASE_HEX},
{"default", BLK_BASE_HEX},
{"octal", BLK_BASE_OCT},
{"oct", BLK_BASE_OCT},
{"character", BLK_BASE_CHAR},
{"char", BLK_BASE_CHAR},
{"binary", BLK_BASE_BINARY},
{"bin", BLK_BASE_BINARY},
{"raw", BLK_BASE_RAW},
{"none", BLK_BASE_RAW},
{NULL, 0}
};
/*
* Possible block output formats
*/
STATIC NAMETYPE blk_fmt[] = {
{"lines", BLK_FMT_LINE},
{"line", BLK_FMT_LINE},
{"strings", BLK_FMT_STRING},
{"string", BLK_FMT_STRING},
{"str", BLK_FMT_STRING},
{"od_style", BLK_FMT_OD_STYLE},
{"odstyle", BLK_FMT_OD_STYLE},
{"od", BLK_FMT_OD_STYLE},
{"hd_style", BLK_FMT_HD_STYLE},
{"hdstyle", BLK_FMT_HD_STYLE},
{"hd", BLK_FMT_HD_STYLE},
{"default", BLK_FMT_HD_STYLE},
{NULL, 0}
};
/*
* Possible ctrl_d styles
*/
STATIC NAMETYPE ctrl_d[] = {
{"virgin_eof", CTRL_D_VIRGIN_EOF},
{"virgineof", CTRL_D_VIRGIN_EOF},
{"virgin", CTRL_D_VIRGIN_EOF},
{"default", CTRL_D_VIRGIN_EOF},
{"never_eof", CTRL_D_NEVER_EOF},
{"nevereof", CTRL_D_NEVER_EOF},
{"never", CTRL_D_NEVER_EOF},
{"empty_eof", CTRL_D_EMPTY_EOF},
{"emptyeof", CTRL_D_EMPTY_EOF},
{"empty", CTRL_D_EMPTY_EOF},
{NULL, 0}
};
/*
* Possible binary config state values
*/
#define TRUE_STRING "true"
#define FALSE_STRING "false"
STATIC NAMETYPE truth[] = {
{TRUE_STRING, TRUE},
{"t", TRUE},
{"on", TRUE},
{"yes", TRUE},
{"y", TRUE},
{"set", TRUE},
{"1", TRUE},
{FALSE_STRING, FALSE},
{"f", FALSE},
{"off", FALSE},
{"no", FALSE},
{"n", FALSE},
{"unset", FALSE},
{"0", FALSE},
{NULL, 0}
};
/*
* declare static functions
*/
S_FUNC long lookup_long(NAMETYPE *set, char *name);
S_FUNC char *lookup_name(NAMETYPE *set, long val);
S_FUNC int getlen(VALUE *vp, LEN *lp);
/*
* Given a string value which represents a configuration name, return
* the configuration type for that string. Returns negative type if
* the string is unknown.
*
* given:
* name configuration name
*/
int
configtype(char *name)
{
NAMETYPE *cp; /* current config pointer */
for (cp = configs; cp->name; cp++) {
if (strcmp(cp->name, name) == 0)
return cp->type;
}
return -1;
}
/*
* lookup_long - given a name and a NAMETYPE, return the int
*
* given:
* set the NAMESET array of name/int pairs
* name mode name
*
* returns:
* numeric value of the name or -1 if not found
*/
S_FUNC long
lookup_long(NAMETYPE *set, char *name)
{
NAMETYPE *cp; /* current config pointer */
for (cp = set; cp->name; cp++) {
if (strcmp(cp->name, name) == 0)
return cp->type;
}
return -1;
}
/*
* lookup_name - given numeric value and a NAMETYPE, return the name
*
* given:
* set the NAMESET array of name/int pairs
* val numeric value to lookup
*
* returns:
* name of the value found of NULL
*/
S_FUNC char *
lookup_name(NAMETYPE *set, long val)
{
NAMETYPE *cp; /* current config pointer */
for (cp = set; cp->name; cp++) {
if (val == cp->type)
return cp->name;
}
return NULL;
}
/*
* Check whether VALUE at vp is a LEN (32-bit signed integer) and if so,
* copy that integer to lp.
*
* Return: 1 ==> not an integer, 2 ==> int > 2^31, 0 ==> OK, -1 ==> error
*/
S_FUNC int
getlen(VALUE *vp, LEN *lp)
{
if (vp->v_type != V_NUM || !qisint(vp->v_num))
return 1;
if (zge31b(vp->v_num->num))
return 2;
*lp = ztoi(vp->v_num->num);
if (*lp < 0)
return -1;
return 0;
}
/*
* Set the specified configuration type to the specified value.
* An error is generated if the type number or value is illegal.
*/
void
setconfig(int type, VALUE *vp)
{
NUMBER *q;
CONFIG *newconf; /* new configuration to set */
long temp;
LEN len = 0;
char *p;
switch (type) {
case CONFIG_ALL:
newconf = NULL; /* firewall */
if (vp->v_type == V_STR) {
if (strcmp(vp->v_str->s_str, "oldstd") == 0) {
newconf = &oldstd;
} else if (strcmp(vp->v_str->s_str, "newstd") == 0) {
newconf = &newstd;
} else {
math_error("CONFIG alias not oldstd or newstd");
/*NOTREACHED*/
}
} else if (vp->v_type != V_CONFIG) {
math_error("non-CONFIG for all");
/*NOTREACHED*/
} else {
newconf = vp->v_config;
}
/* free the current configuration */
config_free(conf);
/* set the new configuration */
conf = config_copy(newconf);
break;
case CONFIG_TRACE:
if (vp->v_type != V_NUM) {
math_error("Non-numeric for trace");
/*NOTREACHED*/
}
q = vp->v_num;
temp = qtoi(q);
if (qisfrac(q) || !zistiny(q->num) ||
((unsigned long) temp > TRACE_MAX)) {
math_error("Bad trace value");
/*NOTREACHED*/
}
conf->traceflags = (FLAG)temp;
break;
case CONFIG_DISPLAY:
if (getlen(vp, &len)) {
math_error("Bad value for display");
/*NOTREACHED*/
}
math_setdigits(len);
break;
case CONFIG_MODE:
if (vp->v_type != V_STR) {
math_error("Non-string for mode");
/*NOTREACHED*/
}
temp = lookup_long(modes, vp->v_str->s_str);
if (temp < 0) {
math_error("Unknown mode \"%s\"", vp->v_str->s_str);
/*NOTREACHED*/
}
math_setmode((int) temp);
break;
case CONFIG_MODE2:
if (vp->v_type != V_STR) {
math_error("Non-string for mode");
/*NOTREACHED*/
}
temp = lookup_long(modes, vp->v_str->s_str);
if (temp < 0) {
math_error("Unknown mode \"%s\"", vp->v_str->s_str);
/*NOTREACHED*/
}
math_setmode2((int) temp);
break;
case CONFIG_EPSILON:
if (vp->v_type != V_NUM) {
math_error("Non-numeric for epsilon");
/*NOTREACHED*/
}
setepsilon(vp->v_num);
break;
case CONFIG_MAXPRINT:
if (getlen(vp, &len)) {
math_error("Bad value for maxprint");
/*NOTREACHED*/
}
conf->maxprint = len;
break;
case CONFIG_MUL2:
if (getlen(vp, &len) || len < 0 || len == 1) {
math_error("Bad value for mul2");
/*NOTREACHED*/
}
if (len == 0)
len = MUL_ALG2;
conf->mul2 = len;
break;
case CONFIG_SQ2:
if (getlen(vp, &len) || len < 0 || len == 1) {
math_error("Bad value for sq2");
/*NOTREACHED*/
}
if (len == 0)
len = SQ_ALG2;
conf->sq2 = len;
break;
case CONFIG_POW2:
if (getlen(vp, &len) || len < 0 || len == 1) {
math_error("Bad value for pow2");
/*NOTREACHED*/
}
if (len == 0)
len = POW_ALG2;
conf->pow2 = len;
break;
case CONFIG_REDC2:
if (getlen(vp, &len) || len < 0 || len == 1) {
math_error("Bad value for redc2");
/*NOTREACHED*/
}
if (len == 0)
len = REDC_ALG2;
conf->redc2 = len;
break;
case CONFIG_TILDE:
if (vp->v_type == V_NUM) {
q = vp->v_num;
conf->tilde_ok = !qiszero(q);
} else if (vp->v_type == V_STR) {
temp = lookup_long(truth, vp->v_str->s_str);
if (temp < 0) {
math_error("Illegal truth value for tilde");
/*NOTREACHED*/
}
conf->tilde_ok = (int)temp;
}
break;
case CONFIG_TAB:
if (vp->v_type == V_NUM) {
q = vp->v_num;
conf->tab_ok = !qiszero(q);
} else if (vp->v_type == V_STR) {
temp = lookup_long(truth, vp->v_str->s_str);
if (temp < 0) {
math_error("Illegal truth value for tab");
/*NOTREACHED*/
}
conf->tab_ok = (int)temp;
}
break;
case CONFIG_QUOMOD:
if (getlen(vp, &len)) {
math_error("Illegal value for quomod");
/*NOTREACHED*/
}
conf->quomod = len;
break;
case CONFIG_QUO:
if (getlen(vp, &len)) {
math_error("Illegal value for quo");
/*NOTREACHED*/
}
conf->quo = len;
break;
case CONFIG_MOD:
if (getlen(vp, &len)) {
math_error("Illegal value for mod");
/*NOTREACHED*/
}
conf->mod = len;
break;
case CONFIG_SQRT:
if (getlen(vp, &len)) {
math_error("Illegal value for sqrt");
/*NOTREACHED*/
}
conf->sqrt = len;
break;
case CONFIG_APPR:
if (getlen(vp, &len)) {
math_error("Illegal value for appr");
/*NOTREACHED*/
}
conf->appr = len;
break;
case CONFIG_CFAPPR:
if (getlen(vp, &len)) {
math_error("Illegal value for cfappr");
/*NOTREACHED*/
}
conf->cfappr = len;
break;
case CONFIG_CFSIM:
if (getlen(vp, &len)) {
math_error("Illegal value for cfsim");
/*NOTREACHED*/
}
conf->cfsim = len;
break;
case CONFIG_OUTROUND:
if (getlen(vp, &len)) {
math_error("Illegal value for outround");
/*NOTREACHED*/
}
conf->outround = len;
break;
case CONFIG_ROUND:
if (getlen(vp, &len)) {
math_error("Illegal value for round");
/*NOTREACHED*/
}
conf->round = len;
break;
case CONFIG_LEADZERO:
if (vp->v_type == V_NUM) {
q = vp->v_num;
conf->leadzero = !qiszero(q);
} else if (vp->v_type == V_STR) {
temp = lookup_long(truth, vp->v_str->s_str);
if (temp < 0) { {
math_error("Illegal truth value for leadzero");
/*NOTREACHED*/
}
}
conf->leadzero = (int)temp;
}
break;
case CONFIG_FULLZERO:
if (vp->v_type == V_NUM) {
q = vp->v_num;
conf->fullzero = !qiszero(q);
} else if (vp->v_type == V_STR) {
temp = lookup_long(truth, vp->v_str->s_str);
if (temp < 0) { {
math_error("Illegal truth value for fullzero");
/*NOTREACHED*/
}
}
conf->fullzero = (int)temp;
}
break;
case CONFIG_MAXSCAN:
if (vp->v_type != V_NUM) {
math_error("Non-numeric for maxscancount");
/*NOTREACHED*/
}
q = vp->v_num;
temp = qtoi(q);
if (qisfrac(q) || qisneg(q) || !zistiny(q->num))
temp = -1;
if (temp < 0) {
math_error("Maxscan value is out of range");
/*NOTREACHED*/
}
conf->maxscancount = temp;
break;
case CONFIG_PROMPT:
if (vp->v_type != V_STR) {
math_error("Non-string for prompt");
/*NOTREACHED*/
}
p = (char *)malloc(vp->v_str->s_len + 1);
if (p == NULL) {
math_error("Cannot duplicate new prompt");
/*NOTREACHED*/
}
strncpy(p, vp->v_str->s_str, vp->v_str->s_len + 1);
free(conf->prompt1);
conf->prompt1 = p;
break;
case CONFIG_MORE:
if (vp->v_type != V_STR) {
math_error("Non-string for more prompt");
/*NOTREACHED*/
}
p = (char *)malloc(vp->v_str->s_len + 1);
if (p == NULL) {
math_error("Cannot duplicate new more prompt");
/*NOTREACHED*/
}
strncpy(p, vp->v_str->s_str, vp->v_str->s_len + 1);
free(conf->prompt2);
conf->prompt2 = p;
break;
case CONFIG_BLKMAXPRINT:
if (vp->v_type != V_NUM) {
math_error("Non-numeric for blkmaxprint");
/*NOTREACHED*/
}
q = vp->v_num;
temp = qtoi(q);
if (qisfrac(q) || qisneg(q) || !zistiny(q->num))
temp = -1;
if (temp < 0) {
math_error("Blkmaxprint value is out of range");
/*NOTREACHED*/
}
conf->blkmaxprint = temp;
break;
case CONFIG_BLKVERBOSE:
if (vp->v_type == V_NUM) {
q = vp->v_num;
conf->blkverbose = !qiszero(q);
} else if (vp->v_type == V_STR) {
temp = lookup_long(truth, vp->v_str->s_str);
if (temp < 0) {
math_error("Illegal truth value for blkverbose");
/*NOTREACHED*/
}
conf->blkverbose = (int)temp;
}
break;
case CONFIG_BLKBASE:
if (vp->v_type != V_STR) {
math_error("Non-string for blkbase");
/*NOTREACHED*/
}
temp = lookup_long(blk_base, vp->v_str->s_str);
if (temp < 0) {
math_error("Unknown mode \"%s\" for blkbase",
vp->v_str->s_str);
/*NOTREACHED*/
}
conf->blkbase = temp;
break;
case CONFIG_BLKFMT:
if (vp->v_type != V_STR) {
math_error("Non-string for blkfmt");
/*NOTREACHED*/
}
temp = lookup_long(blk_fmt, vp->v_str->s_str);
if (temp < 0) {
math_error("Unknown mode \"%s\" for blkfmt",
vp->v_str->s_str);
/*NOTREACHED*/
}
conf->blkfmt = temp;
break;
case CONFIG_CALC_DEBUG:
if (vp->v_type != V_NUM) {
math_error("Non numeric for calc_debug");
/*NOTREACHED*/
}
q = vp->v_num;
temp = qtoi(q);
if (qisfrac(q) || !zistiny(q->num)) {
math_error("Illegal calc_debug parameter value");
/*NOTREACHED*/
}
conf->calc_debug = temp;
break;
case CONFIG_RESOURCE_DEBUG:
if (vp->v_type != V_NUM) {
math_error("Non numeric for resource_debug");
/*NOTREACHED*/
}
q = vp->v_num;
temp = qtoi(q);
if (qisfrac(q) || !zistiny(q->num)) {
math_error("Illegal resource_debug parameter value");
/*NOTREACHED*/
}
conf->resource_debug = temp;
break;
case CONFIG_USER_DEBUG:
if (vp->v_type != V_NUM) {
math_error("Non numeric for user_debug");
/*NOTREACHED*/
}
q = vp->v_num;
temp = qtoi(q);
if (qisfrac(q) || !zistiny(q->num)) {
math_error("Illegal user_debug parameter value");
/*NOTREACHED*/
}
conf->user_debug = temp;
break;
case CONFIG_VERBOSE_QUIT:
if (vp->v_type == V_NUM) {
q = vp->v_num;
conf->verbose_quit = !qiszero(q);
} else if (vp->v_type == V_STR) {
temp = lookup_long(truth, vp->v_str->s_str);
if (temp < 0) {
math_error("Illegal truth value "
"for verbose_quit");
/*NOTREACHED*/
}
conf->verbose_quit = (int)temp;
}
break;
case CONFIG_CTRL_D:
if (vp->v_type != V_STR) {
math_error("Non-string for ctrl_d");
/*NOTREACHED*/
}
temp = lookup_long(ctrl_d, vp->v_str->s_str);
if (temp < 0) {
math_error("Unknown mode \"%s\" for ctrl_d",
vp->v_str->s_str);
/*NOTREACHED*/
}
conf->ctrl_d = temp;
break;
case CONFIG_PROGRAM:
math_error("The program config parameter is read-only");
/*NOTREACHED*/
case CONFIG_BASENAME:
math_error("The basename config parameter is read-only");
/*NOTREACHED*/
case CONFIG_WINDOWS:
math_error("The windows config parameter is read-only");
/*NOTREACHED*/
case CONFIG_CYGWIN:
math_error("The cygwin config parameter is read-only");
/*NOTREACHED*/
case CONFIG_COMPILE_CUSTOM:
math_error("The custom config parameter is read-only");
/*NOTREACHED*/
case CONFIG_ALLOW_CUSTOM:
math_error("The allow_custom config parameter is read-only");
/*NOTREACHED*/
case CONFIG_VERSION:
math_error("The version config parameter is read-only");
/*NOTREACHED*/
case CONFIG_BASEB:
math_error("The baseb config parameter is read-only");
/*NOTREACHED*/
case CONFIG_REDECL_WARN:
if (vp->v_type == V_NUM) {
q = vp->v_num;
conf->redecl_warn = !qiszero(q);
} else if (vp->v_type == V_STR) {
temp = lookup_long(truth, vp->v_str->s_str);
if (temp < 0) {
math_error("Illegal truth value for "
"redecl_warn");
/*NOTREACHED*/
}
conf->redecl_warn = (int)temp;
}
break;
case CONFIG_DUPVAR_WARN:
if (vp->v_type == V_NUM) {
q = vp->v_num;
conf->dupvar_warn = !qiszero(q);
} else if (vp->v_type == V_STR) {
temp = lookup_long(truth, vp->v_str->s_str);
if (temp < 0) {
math_error("Illegal truth value for "
"dupvar_warn");
/*NOTREACHED*/
}
conf->dupvar_warn = (int)temp;
}
break;
case CONFIG_HZ:
math_error("The clock tick rate config parameter is read-only");
/*NOTREACHED*/
default:
math_error("Setting illegal config parameter");
/*NOTREACHED*/
}
}
/*
* config_copy - copy the configuration from one value to another
*
* given:
* src copy this configuration
*
* returns:
* pointer to the configuration copy
*/
CONFIG *
config_copy(CONFIG *src)
{
CONFIG *dest; /* the new CONFIG to return */
/*
* firewall
*/
if (src == NULL || src->epsilon == NULL || src->prompt1 == NULL ||
src->prompt2 == NULL) {
math_error("bad CONFIG value");