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* Functions related to run-time configurations.
*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
* Copyright: (C) 1993-2012 Emmanuel Bertin -- IAP/CNRS/UPMC
*
* License: GNU General Public License
*
* SExtractor is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
* SExtractor 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 General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with SExtractor. If not, see <http://www.gnu.org/licenses/>.
*
* Last modified: 18/04/2012
*
*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <ctype.h>
#include <math.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#if defined(USE_THREADS) \
&& (defined(__APPLE__) || defined(FREEBSD) || defined(NETBSD)) /* BSD, Apple */
#include <sys/types.h>
#include <sys/sysctl.h>
#elif defined(USE_THREADS) && defined(HAVE_MPCTL) /* HP/UX */
#include <sys/mpctl.h>
#endif
#include "define.h"
#include "globals.h"
#include "back.h"
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#include "prefs.h"
#include "preflist.h"
#include "fits/fitscat.h"
/********************************* dumpprefs ********************************/
/*
Print the default preference parameters.
*/
void dumpprefs(int state)
{
char **dp;
dp = default_prefs;
while (**dp)
if (**dp != '*')
printf("%s\n",*(dp++));
else if (state)
printf("%s\n",*(dp++)+1);
else
dp++;
return;
}
/********************************* readprefs ********************************/
/*
Read a configuration file in ``standard'' format (see the SExtractor
documentation)
*/
void readprefs(char *filename, char **argkey, char **argval, int narg)
{
FILE *infile;
char *cp, str[MAXCHARL], *keyword, *value, **dp;
int i, ival, nkey, warn, argi, flagc, flagd, flage, flagz;
float dval;
#ifndef NO_ENVVAR
static char value2[MAXCHARL],envname[MAXCHAR];
char *dolpos;
#endif
if ((infile = fopen(filename,"r")) == NULL)
{
flage = 1;
warning(filename, " not found, using internal defaults");
}
else
flage = 0;
/*Build the keyword-list from pkeystruct-array */
for (i=0; key[i].name[0]; i++)
strcpy(keylist[i], key[i].name);
keylist[i][0] = '\0';
/*Scan the configuration file*/
argi=0;
flagc = 0;
flagd = 1;
dp = default_prefs;
for (warn=0;;)
{
if (flagd)
{
if (**dp)
{
if (**dp=='*')
strcpy(str, *(dp++)+1);
else
strcpy(str, *(dp++));
}
else
flagd = 0;
}
if (!flagc && !flagd)
if (flage || !fgets(str, MAXCHARL, infile))
flagc=1;
if (flagc)
{
if (argi<narg)
{
sprintf(str, "%s %s", argkey[argi], argval[argi]);
argi++;
}
else
break;
}
keyword = strtok(str, notokstr);
if (keyword && keyword[0]!=0 && keyword[0]!=(char)'#')
{
if (warn>=10)
error(EXIT_FAILURE, "*Error*: No valid keyword found in ", filename);
nkey = findkeys(keyword, keylist, FIND_STRICT);
if (nkey!=RETURN_ERROR)
{
value = strtok((char *)NULL, notokstr);
#ifndef NO_ENVVAR
/*------ Expansion of environment variables (preceded by '$') */
if (value && (dolpos=strchr(value, '$')))
{
int nc;
char *valuet,*value2t, *envval;
value2t = value2;
valuet = value;
while (dolpos)
{
while (valuet<dolpos)
*(value2t++) = *(valuet++); /* verbatim copy before '$' */
if (*(++valuet) == (char)'{')
valuet++;
strncpy(envname, valuet, nc=strcspn(valuet,"}/:\"\'\\"));
*(envname+nc) = (char)'\0';
if (*(valuet+=nc) == (char)'}')
valuet++;
if (!(envval=getenv(envname)))
error(EXIT_FAILURE, "Environment variable not found: ",
envname);
while(*envval) /* Copy the ENV content */
*(value2t++) = *(envval++);
while(*valuet && *valuet!=(char)'$')/* Continue verbatim copy */
*(value2t++) = *(valuet++);
if (*valuet)
dolpos = valuet;
else
{
dolpos = NULL;
*value2t = (char)'\0';
}
}
value = value2;
}
#endif
switch(key[nkey].type)
{
case P_FLOAT:
if (!value || value[0]==(char)'#')
error(EXIT_FAILURE, keyword," keyword has no value!");
dval = atof(value);
if (dval>=key[nkey].dmin && dval<=key[nkey].dmax)
*(double *)(key[nkey].ptr) = dval;
else
error(EXIT_FAILURE, keyword," keyword out of range");
break;
case P_INT:
if (!value || value[0]==(char)'#')
error(EXIT_FAILURE, keyword," keyword has no value!");
ival = atoi(value);
if (ival>=key[nkey].imin && ival<=key[nkey].imax)
*(int *)(key[nkey].ptr) = ival;
else
error(EXIT_FAILURE, keyword, " keyword out of range");
break;
case P_STRING:
if (!value || value[0]==(char)'#')
error(EXIT_FAILURE, keyword," string is empty!");
strcpy((char *)key[nkey].ptr, value);
break;
case P_BOOL:
if (!value || value[0]==(char)'#')
error(EXIT_FAILURE, keyword," keyword has no value!");
if ((cp = strchr("yYnN", (int)value[0])))
*(int *)(key[nkey].ptr) = (tolower((int)*cp)=='y')?1:0;
else
error(EXIT_FAILURE, keyword, " value must be Y or N");
break;
case P_KEY:
if (!value || value[0]==(char)'#')
error(EXIT_FAILURE, keyword," keyword has no value!");
if ((ival = findkeys(value, key[nkey].keylist,FIND_STRICT))
!= RETURN_ERROR)
*(int *)(key[nkey].ptr) = ival;
else
error(EXIT_FAILURE, keyword, " set to an unknown keyword");
break;
case P_BOOLLIST:
for (i=0; i<MAXLIST&&value&&value[0]!=(char)'#'; i++)
{
if (i>=key[nkey].nlistmax)
error(EXIT_FAILURE, keyword, " has too many members");
if ((cp = strchr("yYnN", (int)value[0])))
((int *)(key[nkey].ptr))[i] = (tolower((int)*cp)=='y')?1:0;
else
error(EXIT_FAILURE, keyword, " value must be Y or N");
value = strtok((char *)NULL, notokstr);
}
if (i<key[nkey].nlistmin)
error(EXIT_FAILURE, keyword, " list has not enough members");
*(key[nkey].nlistptr) = i;
break;
case P_INTLIST:
for (i=0; i<MAXLIST&&value&&value[0]!=(char)'#'; i++)
{
if (i>=key[nkey].nlistmax)
error(EXIT_FAILURE, keyword, " has too many members");
ival = strtol(value, NULL, 0);
if (ival>=key[nkey].imin && ival<=key[nkey].imax)
((int *)key[nkey].ptr)[i] = ival;
else
error(EXIT_FAILURE, keyword, " keyword out of range");
value = strtok((char *)NULL, notokstr);
}
if (i<key[nkey].nlistmin)
error(EXIT_FAILURE, keyword, " list has not enough members");
*(key[nkey].nlistptr) = i;
break;
case P_FLOATLIST:
for (i=0; i<MAXLIST&&value&&value[0]!=(char)'#'; i++)
{
if (i>=key[nkey].nlistmax)
error(EXIT_FAILURE, keyword, " has too many members");
dval = atof(value);
if (dval>=key[nkey].dmin && dval<=key[nkey].dmax)
((double *)key[nkey].ptr)[i] = dval;
else
error(EXIT_FAILURE, keyword, " keyword out of range");
value = strtok((char *)NULL, notokstr);
}
if (i<key[nkey].nlistmin)
error(EXIT_FAILURE, keyword, " list has not enough members");
*(key[nkey].nlistptr) = i;
break;
case P_KEYLIST:
for (i=0; i<MAXLIST && value && value[0]!=(char)'#'; i++)
{
if (i>=key[nkey].nlistmax)
error(EXIT_FAILURE, keyword, " has too many members");
if ((ival = findkeys(value, key[nkey].keylist, FIND_STRICT))
!= RETURN_ERROR)
((int *)(key[nkey].ptr))[i] = ival;
else
error(EXIT_FAILURE, keyword, " set to an unknown keyword");
value = strtok((char *)NULL, notokstr);
}
if (i<key[nkey].nlistmin)
error(EXIT_FAILURE, keyword, " list has not enough members");
*(key[nkey].nlistptr) = i;
break;
case P_STRINGLIST:
if (!value || value[0]==(char)'#')
{
value = "";
flagz = 1;
}
else
flagz = 0;
for (i=0; i<MAXLIST && value && value[0]!=(char)'#'; i++)
{
if (i>=key[nkey].nlistmax)
error(EXIT_FAILURE, keyword, " has too many members");
free(((char **)key[nkey].ptr)[i]);
QMALLOC(((char **)key[nkey].ptr)[i], char, MAXCHAR);
strcpy(((char **)key[nkey].ptr)[i], value);
value = strtok((char *)NULL, notokstr);
}
if (i<key[nkey].nlistmin)
error(EXIT_FAILURE, keyword, " list has not enough members");
*(key[nkey].nlistptr) = flagz?0:i;
break;
default:
error(EXIT_FAILURE, "*Internal ERROR*: Type Unknown",
" in readprefs()");
break;
}
key[nkey].flag = 1;
}
else
{
warning(keyword, " keyword unknown");
warn++;
}
}
}
for (i=0; key[i].name[0]; i++)
if (!key[i].flag)
error(EXIT_FAILURE, key[i].name, " configuration keyword missing");
if (!flage)
fclose(infile);
return;
}
/********************************** findkeys **********************************/
/*
find an item within a list of keywords, SExtractor version.
*/
int findkeys(char *str, char keyw[][32], int mode)
{
int i;
for (i=0; keyw[i][0]; i++)
if (!cistrcmp(str, keyw[i], mode))
return i;
return RETURN_ERROR;
}
/******************************* cistrcmp ***********************************/
/*
case-insensitive strcmp.
*/
int cistrcmp(char *cs, char *ct, int mode)
{
int i, diff;
if (mode)
{
for (i=0; cs[i]&&ct[i]; i++)
if ((diff=tolower((int)cs[i])-tolower((int)ct[i])))
return diff;
}
else
{
for (i=0; cs[i]||ct[i]; i++)
if ((diff=tolower((int)cs[i])-tolower((int)ct[i])))
return diff;
}
return 0;
}
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/********************************* preprefs **********************************/
/*
Set number of threads and endianity.
*/
void preprefs()
{
unsigned short ashort=1;
#ifdef USE_THREADS
int nproc;
#endif
/* Test if byteswapping will be needed */
bswapflag = *((char *)&ashort);
/* Multithreading */
#ifdef USE_THREADS
if (!prefs.nthreads)
{
/*-- Get the number of processors for parallel builds */
/*-- See, e.g. http://ndevilla.free.fr/threads */
nproc = -1;
#if defined(_SC_NPROCESSORS_ONLN) /* AIX, Solaris, Linux */
nproc = (int)sysconf(_SC_NPROCESSORS_ONLN);
#elif defined(_SC_NPROCESSORS_CONF)
nproc = (int)sysconf(_SC_NPROCESSORS_CONF);
#elif defined(__APPLE__) || defined(FREEBSD) || defined(NETBSD) /* BSD, Apple */
{
int mib[2];
size_t len;
mib[0] = CTL_HW;
mib[1] = HW_NCPU;
len = sizeof(nproc);
sysctl(mib, 2, &nproc, &len, NULL, 0);
}
#elif defined (_SC_NPROC_ONLN) /* SGI IRIX */
nproc = sysconf(_SC_NPROC_ONLN);
#elif defined(HAVE_MPCTL) /* HP/UX */
nproc = mpctl(MPC_GETNUMSPUS_SYS, 0, 0);
#endif
if (nproc>0)
prefs.nthreads = nproc;
else
{
prefs.nthreads = 2;
warning("Cannot find the number of CPUs on this system:",
"NTHREADS defaulted to 2");
}
}
Emmanuel Bertin
committed
#ifndef HAVE_ATLAS_MP
if (prefs.nthreads>1)
warning("This executable has been compiled using a version of the ATLAS "
"library without support for multithreading. ",
"Performance will be degraded.");
#endif
#else
if (prefs.nthreads != 1)
{
prefs.nthreads = 1;
warning("NTHREADS != 1 ignored: ",
"this build of " BANNER " is single-threaded");
}
#endif
}
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/********************************* useprefs **********************************/
/*
Update various structures according to the prefs.
*/
void useprefs()
{
int i, margin, naper;
char *str;
/*-------------------------------- Images ----------------------------------*/
prefs.dimage_flag = (prefs.nimage_name>1);
/*--------------------------------- ASSOC ----------------------------------*/
prefs.assoc_flag = FLAG(obj2.assoc) || FLAG(obj2.assoc_number);
/*-------------------------------- Extracting ------------------------------*/
if (prefs.nthresh_type<2)
prefs.thresh_type[1] = prefs.thresh_type[0];
/*-------------------------------- Deblending ------------------------------*/
prefs.deb_maxarea = (prefs.ext_minarea<MAXDEBAREA ?
prefs.ext_minarea:MAXDEBAREA);
/*-------------------------------- Astrometry ------------------------------*/
prefs.world_flag = FLAG(obj2.mxw) || FLAG(obj2.mamaposx)
|| FLAG(obj2.peakxw) || FLAG(obj2.winpos_xw)
|| FLAG(obj2.mx2w) || FLAG(obj2.win_mx2w)
|| FLAG(obj2.xw_prof) || FLAG(obj2.poserrmx2w_prof)
|| FLAG(obj2.poserr_mx2w) || FLAG(obj2.winposerr_mx2w)
Emmanuel Bertin
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|| FLAG(obj2.area_flagw) || FLAG(obj2.prof_flagw)
|| FLAG(obj2.fwhmw_psf)
|| (FLAG(obj2.sprob) && prefs.pixel_scale == 0.0);
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/* Default astrometric settings */
strcpy(prefs.coosys, "ICRS");
prefs.epoch = 2000.0;
/*-------------------------------- Photometry ------------------------------*/
/* Find the largest APERture-photometry vector */
if (FLAG(obj2.flux_aper))
{
naper = prefs.flux_apersize;
if (prefs.fluxerr_apersize>naper)
naper = prefs.fluxerr_apersize;
if (prefs.mag_apersize>naper)
naper = prefs.mag_apersize;
if (prefs.magerr_apersize>naper)
naper = prefs.magerr_apersize;
if (naper>prefs.naper)
{
warning("Not enough apertures provided in config.:\n",
" some APER photometric values will remain blank ");
naper = prefs.naper;
}
else
prefs.naper = naper;
}
else
naper = 0; /* To avoid gcc -Wall warnings */
/* Find the largest "minimum margin" necessary for apertures */
prefs.cleanmargin = 0;
if (FLAG(obj2.vignet)
&& (margin=(prefs.vignetsize[1]+1)/2) > prefs.cleanmargin)
prefs.cleanmargin = margin;
if (FLAG(obj2.vigshift)
&& (margin=(prefs.vigshiftsize[1]+1)/2+3)>prefs.cleanmargin)
prefs.cleanmargin = margin;
if (FLAG(obj2.flux_aper))
for (i=0; i<naper; i++)
if ((margin=(int)((prefs.apert[i]+1)/2)+1) > prefs.cleanmargin)
prefs.cleanmargin = margin;
/* Growth-curve flag */
if (FLAG(obj2.flux_growth)
|| FLAG(obj2.mag_growth)
|| FLAG(obj2.flux_radius)
|| FLAG(obj2.hl_radius)
|| FLAG(obj2.flux_growthstep)
|| FLAG(obj2.mag_growthstep))
prefs.growth_flag = 1;
if (FLAG(obj2.flux_radius) && prefs.flux_radiussize)
if (prefs.nflux_frac>prefs.flux_radiussize)
prefs.nflux_frac = prefs.flux_radiussize;
/*------------------------------- MASKing ----------------------------------*/
prefs.blank_flag = (prefs.mask_type!=MASK_NONE);
/*--------------------------- SOM-fitting ----------------------------------*/
prefs.somfit_flag = FLAG(obj2.flux_somfit);
/*------------------------------ Background --------------------------------*/
if (prefs.nbacksize<2)
prefs.backsize[1] = prefs.backsize[0];
if (prefs.nbackfsize<2)
prefs.backfsize[1] = prefs.backfsize[0];
if (prefs.nback_type<2)
prefs.back_type[1] = prefs.back_type[0];
/*------------------------------ FLAG-images -------------------------------*/
prefs.nimaisoflag = (prefs.imaflag_size > prefs.imanflag_size) ?
prefs.imaflag_size : prefs.imanflag_size;
prefs.nimaflag = (prefs.nimaisoflag < prefs.nfimage_name) ?
prefs.nimaisoflag : prefs.nfimage_name;
/*----------------------------- CHECK-images -------------------------------*/
prefs.check_flag = 0;
for (i=0; i<prefs.ncheck_type; i++)
if (prefs.check_type[i] != CHECK_NONE) /* at least 1 is not NONE */
prefs.check_flag = 1;
if (prefs.check_flag && prefs.ncheck_name!=prefs.ncheck_type)
error(EXIT_FAILURE, "*Error*: CHECKIMAGE_NAME(s) and CHECKIMAGE_TYPE(s)",
" are not in equal number");
/*---------------------------- PSF-fitting ---------------------------------*/
if (FLAG(obj2.flux_psf) )
{
prefs.psffit_flag = 1;
/* We deactivate double-PSF fits for now */
/*
prefs.dpsffit_flag = (prefs.npsf_name>1);
*/
}
if (prefs.check_flag)
for (i=0; i<prefs.ncheck_type; i++)
if (prefs.check_type[i] == CHECK_SUBPSFPROTOS
|| prefs.check_type[i] == CHECK_PSFPROTOS)
prefs.psffit_flag = 1;
if (prefs.psffit_flag)
prefs.psf_flag = 1;
if (prefs.dpsffit_flag)
prefs.dpsf_flag = 1;
/*---------------------------- PC-fitting ----------------------------------*/
/* PC-fitting is possible only if a PSF file is loaded */
if (prefs.psf_flag)
{
prefs.pc_flag = FLAG(obj2.mx2_pc);
if (prefs.check_flag)
for (i=0; i<prefs.ncheck_type; i++)
if (prefs.check_type[i] == CHECK_SUBPCPROTOS
|| prefs.check_type[i] == CHECK_PCPROTOS
|| prefs.check_type[i] == CHECK_PCOPROTOS)
prefs.pc_flag = 1;
}
/*----------------------------- Model-fitting -------------------------------*/
if (prefs.check_flag)
for (i=0; i<prefs.ncheck_type; i++)
if (prefs.check_type[i] == CHECK_PROFILES
|| prefs.check_type[i] == CHECK_SUBPROFILES
|| prefs.check_type[i] == CHECK_SPHEROIDS
|| prefs.check_type[i] == CHECK_SUBSPHEROIDS
|| prefs.check_type[i] == CHECK_DISKS
|| prefs.check_type[i] == CHECK_SUBDISKS)
if (prefs.prof_flag)
prefs.psf_flag = 1;
if (prefs.dprof_flag)
prefs.dpsf_flag = 1;
Emmanuel Bertin
committed
/*-------------------------- Tracking the PSF FWHM --------------------------*/
if (prefs.seeing_fwhm == 0 && (FLAG(obj2.sprob) || FLAG(obj2.fwhm_psf)))
prefs.psf_flag = 1;
/*-------------------------- Pattern-fitting -------------------------------*/
/* Profile-fitting is possible only if a PSF file is loaded */
if (prefs.check_flag)
for (i=0; i<prefs.ncheck_type; i++)
if (prefs.check_type[i] == CHECK_PATTERNS)
prefs.pattern_flag = 1;
/*----------------------------- WEIGHT-images ------------------------------*/
if (prefs.nweight_type<2)
prefs.weight_type[1] = prefs.weight_type[0];
prefs.dweight_flag = (prefs.weight_type[0]!= WEIGHT_NONE);
prefs.weight_flag = (prefs.weight_type[1]!= WEIGHT_NONE);
if (prefs.dweight_flag || prefs.weight_flag)
{
/*-- Handle the default weight-threshold values */
if (prefs.nweight_thresh<2)
for (i=2; --i >= prefs.nweight_thresh;)
prefs.weight_thresh[i] = (prefs.weight_type[i]==WEIGHT_FROMWEIGHTMAP)?
0.0 : BIG;
/*-- Weight rescaling flags */
if (prefs.nwscale_flag<2)
prefs.wscale_flag[1] = (prefs.weight_type[1]==WEIGHT_FROMBACK)?
BACK_WSCALE : prefs.wscale_flag[0];
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/*-- Check WEIGHT_IMAGE parameter(s) */
if ((!prefs.nwimage_name
&& ((prefs.weight_type[0]!=WEIGHT_FROMBACK
&& prefs.weight_type[0]!=WEIGHT_NONE)
|| (prefs.weight_type[1]!=WEIGHT_FROMBACK
&& prefs.weight_type[1]!=WEIGHT_NONE)))
|| (prefs.nwimage_name<2
&& prefs.weight_type[0]!=WEIGHT_FROMBACK
&& prefs.weight_type[0]!=WEIGHT_NONE
&& prefs.weight_type[1]!=WEIGHT_FROMBACK
&& prefs.weight_type[1]!=WEIGHT_NONE
&& prefs.weight_type[0]!=prefs.weight_type[1]))
error(EXIT_FAILURE, "*Error*: WEIGHT_IMAGE missing","");
if (prefs.nwimage_name && prefs.nwimage_name<2)
prefs.wimage_name[1] = prefs.wimage_name[0];
if (prefs.nwimage_name==2 && prefs.nweight_type==1)
prefs.nweight_type = 2;
/*-- If detection-only interpolation is needed with 1 Weight image... */
/*-- ...pretend we're using 2, with only one being interpolated */
if (prefs.nweight_type==1
&& prefs.nwimage_name && prefs.wimage_name[1]==prefs.wimage_name[0]
&& prefs.interp_type[0]==INTERP_VARONLY )
{
prefs.nweight_type = 2;
prefs.weight_type[1] = prefs.weight_type[0];
prefs.weight_type[0] = WEIGHT_FROMINTERP;
prefs.wimage_name[1] = prefs.wimage_name[0];
prefs.interp_type[1] = INTERP_NONE;
prefs.dweight_flag = 1;
if (prefs.nweight_thresh<2)
{
prefs.nweight_thresh = 2;
prefs.weight_thresh[1] = prefs.weight_thresh[0];
}
}
}
/*------------------------------ Catalogue ---------------------------------*/
if (!strcmp(prefs.cat_name, "STDOUT"))
prefs.pipe_flag = 1;
if ((str=strrchr(prefs.filter_name, '/')))
strcpy(thecat.filter_name, str+1);
else
strcpy(thecat.filter_name, prefs.filter_name);
if ((str=strrchr(prefs.prefs_name, '/')))
strcpy(thecat.prefs_name, str+1);
else
strcpy(thecat.prefs_name, prefs.prefs_name);
if ((str=strrchr(prefs.nnw_name, '/')))
strcpy(thecat.nnw_name, str+1);
else
strcpy(thecat.nnw_name, prefs.nnw_name);
if ((str=strrchr(prefs.image_name[prefs.nimage_name-1], '/')))
strcpy(thecat.image_name, str+1);
else
strcpy(thecat.image_name, prefs.image_name[prefs.nimage_name-1]);
sprintf(thecat.soft_name, "%s %s", BANNER, VERSION);
return;
}
/********************************* endprefs *********************************/
/*
Mostly free memory allocate for static arrays.
*/
void endprefs(void)
{
int i;
for (i=0; i<prefs.nfimage_name; i++)
free(prefs.fimage_name[i]);
for (i=0; i<prefs.nwimage_name; i++)
free(prefs.wimage_name[i]);
for (i=0; i<prefs.npsf_name; i++)
free(prefs.psf_name[i]);
for (i=0; i<prefs.ncheck_name; i++)
free(prefs.check_name[i]);
return;
}