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process.c
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/*----------------------------------------------------------------------------+
| |
| Enhanced HEYU Functionality for Uploaded Timers and Macros |
| Copyright 2002,2003,2004,2005,2006 Charles W. Sullivan |
| |
| |
| As used herein, HEYU is a trademark of Daniel B. Suthers. |
| X10, CM11A, and ActiveHome are trademarks of X-10 (USA) Inc. |
| The author is not affiliated with either entity. |
| |
| Charles W. Sullivan |
| Co-author and Maintainer |
| Greensboro, North Carolina |
| Email ID: cwsulliv01 |
| Email domain: -at- heyu -dot- org |
| |
+----------------------------------------------------------------------------*/
/*
* This program 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.
*
* This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <ctype.h>
#ifdef HAVE_STDLIB_H
#include <stdlib.h>
#endif
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#include <stdio.h>
#ifdef HAVE_STRING_H
#include <string.h>
#endif
#ifdef HAVE_STRINGS_H
#include <strings.h>
#endif
#include <time.h>
#ifdef HAVE_ERRNO_H
#include <errno.h>
#endif
#ifdef HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#ifdef HAVE_SYS_STAT_H
#include <sys/stat.h>
#endif
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#include "x10.h"
#include "sun.h"
#include "process.h"
#define NDSTINTV 6
struct dststruct {
long elapsed; /* Elapsed minutes from 00:00 hours legal time Jan 1st */
int offset; /* Minutes to add to ST to get Legal Time during each */
/* interval. */
} lgls[NDSTINTV], dsts[NDSTINTV], stds[NDSTINTV], stdr[NDSTINTV];
#if 0
#define NDSTINTV (int)(sizeof(lgls)/sizeof(struct dststruct))
#endif
/* Contains info written to or read from the x10record file */
struct record_info x10record = {0, 0, 0, 0, 0, 0, 0, 0};
struct record_info *x10recordp = &x10record;
#define PROMSIZE 1024
/* Global variables */
int line_no;
int timer_size = 0;
int timer_maxsize = 0;
int timer_savesize = 0;
int tevent_size = 0;
int tevent_savesize = 0;
int tevent_maxsize = 0;
int current_timer_generation = 0;
int save_timer_generation = 0;
int timer_generation_delta = 0;
int current_tevent_generation = 0;
int save_tevent_generation = 0;
int tevent_generation_delta = 0;
char default_housecode = 'A';
long int std_tzone; /* Timezone in seconds West of Greenwich */
char *heyu_tzname[2];
/* Directory (terminated with /) containing the critical */
/* heyu files x10config, x10record, and x10macroxref */
char heyu_path[PATH_LEN + 1];
char schedfile[PATH_LEN + 1];
char heyu_script[PATH_LEN + 1];
/* State file */
extern char statefile[];
/* Alternate optional directory (specified in x10config) */
/* for report and non-critical files */
char alt_path[PATH_LEN + 1];
char heyu_config[PATH_LEN + 1]; /* Filename of Heyu configuration file */
int is_writable; /* Flag: Heyu directory is writable */
/* External variables */
extern int verbose, i_am_relay;
extern CONFIG config;
extern CONFIG *configp;
extern struct opt_st *optptr;
char *wday_name[] = {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
char *month_name[] = {"Jan", "Feb", "Mar", "Apr", "May", "Jun",
"Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
/* Extended error management functions - these allow stringing together */
/* error messages from a tree of function calls into a (hopefully) */
/* meaningful message for the user. */
/*----------------------------------------------------------------------------+
| Pass back pointer and size of error message buffer - for internal use by |
| functions below. |
+----------------------------------------------------------------------------*/
void error_area ( char **pointer, int *space )
{
static char error_buffer[1024];
*pointer = error_buffer;
*space = (sizeof(error_buffer)/sizeof(char));
return;
}
/*----------------------------------------------------------------------------+
| Save an error message in error message buffer |
+----------------------------------------------------------------------------*/
void store_error_message ( char *message )
{
char *buffp = NULL;
int space;
error_area(&buffp, &space);
if ( space < (int)strlen(message) + 1 ) {
fprintf(stderr, "Internal error: no space - store_error_message()\n");
exit(1);
}
strncpy2(buffp, message, space - 1);
return;
}
/*----------------------------------------------------------------------------+
| Prepend a message to an existing error message in buffer |
+----------------------------------------------------------------------------*/
void add_error_prefix ( char *prefix )
{
char *buffp = NULL;
char *oldmsg = NULL;
int space;
error_area(&buffp, &space);
if ( space < ((int)strlen(prefix) + (int)strlen(buffp) + 1) ) {
fprintf(stderr, "Internal error: no space - add_error_prefix()\n");
exit(1);
}
if ( (oldmsg = strdup(buffp)) == NULL ) {
fprintf(stderr, "Unable to allocate memory for error message\n");
exit(1);
}
strncpy2(buffp, prefix, space - 1);
strncat(buffp, oldmsg, space - 1 - strlen(buffp));
free(oldmsg);
return;
}
/*----------------------------------------------------------------------------+
| Append a message to an existing error message in buffer |
+----------------------------------------------------------------------------*/
void add_error_suffix ( char *suffix )
{
char *buffp = NULL;
int space;
error_area(&buffp, &space);
if ( space < ((int)strlen(buffp) + (int)strlen(suffix) + 1) ) {
fprintf(stderr, "Internal error: no space - add_error_suffix()\n");
exit(1);
}
strncat(buffp, suffix, space - 1 - strlen(buffp));
return;
}
/*----------------------------------------------------------------------------+
| Get pointer to error message buffer |
+----------------------------------------------------------------------------*/
char *error_message ( void )
{
char *buffp = NULL;
int space;
error_area(&buffp, &space);
return buffp;
}
/*----------------------------------------------------------------------------+
| Clear the error message buffer |
+----------------------------------------------------------------------------*/
void clear_error_message( void )
{
char *buffp = NULL;
int space;
error_area(&buffp, &space);
*buffp = '\0';
return;
}
/* Debugging functions */
void tp ( int point )
{
printf("testpoint %d\n", point);
fflush(stdout);
return ;
}
int show_timer_links( TIMER *timerp )
{
int j;
for ( j = 0; j < timer_maxsize; j++ )
printf("%3d %3d\n", j, timerp[j].link);
return 0;
}
/*----------------------------------------------------------------------------+
| Display tokens |
+----------------------------------------------------------------------------*/
void display_tokens ( int tokc, char *tokv[] )
{
int j;
for ( j = 0; j < tokc; j++ ) {
printf(" \"%s\"", tokv[j]);
}
printf("\n");
return;
}
/*----------------------------------------------------------------------------+
| Verify that the start and stop times in any timer are not the same. |
| (If they are, CM11A will not launch the stop macro.) |
| Return the number of timers failing the test. |
+----------------------------------------------------------------------------*/
int check_timer_start_stop ( TIMER *timerp )
{
int j, count;
if ( !timerp )
return 0;
j = 0;
count = 0;
while ( timerp[j].line_no > 0 ) {
if ( timerp[j].generation != current_timer_generation ||
timerp[j].flag_start == NO_EVENT ||
timerp[j].flag_stop == NO_EVENT ) {
j++;
continue;
}
if ( timerp[j].offset_stop == timerp[j].offset_start )
count++;
j++;
}
return count;
}
/*----------------------------------------------------------------------------+
| Verify an unbroken chain of TEVENT links. |
+----------------------------------------------------------------------------*/
int verify_tevent_links ( TEVENT *teventp )
{
int *linker, *linkee;
int j, k, start, size, retcode;
static int sizeint = sizeof(int);
if ( !teventp )
return 0;
size = 0;
while ( teventp[size].line_no > 0 )
size++;
if (!size)
return 0;
linker = calloc( size, sizeint );
if ( linker == NULL ) {
(void)fprintf(stderr, "verify_tevent_links() - Unable to allocate memory 1\n");
return -1;
}
linkee = calloc( size, sizeint );
if ( linkee == NULL ) {
(void)fprintf(stderr, "verify_tevent_links() - Unable to allocate memory 2\n");
return -1;
}
/* Find the start of the chain, i.e., the tevent not linked to by any other */
for ( j = 0; j < size; j++ ) {
linker[j] = 0;
}
for ( j = 0; j < size; j++ ) {
k = teventp[j].link;
if ( k > (size - 1) ) {
(void)fprintf(stderr,
"verify_tevent_links() - link %d out of bound %d at index %d\n", k, size - 1, j);
return -1;
}
if ( k >= 0 )
linker[k] = 1;
}
for ( start = 0; start < size; start++ ) {
if ( linker[start] == 0 )
break;
}
for ( j = 0; j < size; j++ ) {
linkee[j] = 0;
linker[j] = -1;
}
k = start;
for ( j = 0; j < size; j++ ) {
k = teventp[k].link;
if ( k < 0 && j < (size - 1) ) {
(void)fprintf(stderr,
"verify_tevent_links() - premature end of %d length chain at index %d\n", size, j);
return -1;
}
if ( k > (size - 1) ) {
(void)fprintf(stderr,
"verify_tevent_links() - link %d out of bound %d at index %d\n", k, size - 1, j);
return -1;
}
if ( k >= 0 ) {
linkee[k] += 1;
linker[k] = j;
}
}
retcode = 0;
for ( k = 1; k < size; k++ ) {
if ( linkee[k] == 0 ) {
(void)fprintf(stderr, "teventp[linkee[%d]] is not in chain.\n", k);
retcode = 1;
}
if ( linkee[k] > 1 ) {
(void)fprintf(stderr, "teventp[linkee[%d]] is multiply linked.\n", k);
retcode = 1;
}
if ( linkee[k] == -1 ) {
(void)fprintf(stderr, "End of chain at index %d\n", linker[k]);
retcode = 1;
}
}
free(linker);
free(linkee);
return retcode;
}
/*----------------------------------------------------------------------------+
| Verify an unbroken chain of TIMER links. |
+----------------------------------------------------------------------------*/
int verify_timer_links ( TIMER *timerp )
{
int *linker, *linkee;
int j, k, start, size, retcode;
static int sizeint = sizeof(int);
if ( !timerp )
return 0;
size = 0;
while ( timerp[size].line_no > 0 )
size++;
if (!size)
return 0;
linker = calloc( size, sizeint );
if ( linker == NULL ) {
(void)fprintf(stderr, "verify_timer_links() - Unable to allocate memory 1\n");
return -1;
}
linkee = calloc( size, sizeint );
if ( linkee == NULL ) {
(void)fprintf(stderr, "verify_timer_links() - Unable to allocate memory 2\n");
return -1;
}
/* Find the start of the chain, i.e., the timer not linked to by any other */
for ( j = 0; j < size; j++ ) {
linker[j] = 0;
}
for ( j = 0; j < size; j++ ) {
k = timerp[j].link;
if ( k > (size - 1) ) {
(void)fprintf(stderr,
"verify_timer_links() - link %d out of bound %d at index %d\n", k, size - 1, j);
return -1;
}
if ( k >= 0 )
linker[k] = 1;
}
for ( start = 0; start < size; start++ ) {
if ( linker[start] == 0 )
break;
}
for ( j = 0; j < size; j++ ) {
linkee[j] = 0;
linker[j] = -1;
}
for ( j = 0; j < size; j++ ) {
linkee[j] = 0;
linker[j] = -1;
}
k = start;
for ( j = 0; j < size; j++ ) {
k = timerp[k].link;
if ( k < 0 && j < (size - 1) ) {
(void)fprintf(stderr,
"verify_timerp_links() - premature end of %d length chain at index %d\n", size, j);
return -1;
}
if ( k > (size - 1) ) {
(void)fprintf(stderr,
"verify_timerp_links() - link %d out of bound %d at index %d\n", k, size, j);
return -1;
}
if ( k >= 0 ) {
linkee[k] += 1;
linker[k] = j;
}
}
retcode = 0;
for ( k = 1; k < size; k++ ) {
if ( linkee[k] == 0 ) {
(void)fprintf(stderr, "timerp[linkee[%d]] is not in chain.\n", k);
retcode = 1;
}
if ( linkee[k] > 1 ) {
(void)fprintf(stderr, "timerp[linkee[%d]] is multiply linked.\n", k);
retcode = 1;
}
if ( linkee[k] == -1 ) {
(void)fprintf(stderr, "End of chain at index %d\n", linker[k]);
retcode = 1;
}
}
free( linker );
free( linkee );
return retcode;
}
/* String/array manipulation functions */
/*----------------------------------------------------------------------------+
| Trim leading and trailing whitespace from argument string and return |
| pointer to string. Argument string itself is modified. |
+----------------------------------------------------------------------------*/
char *strtrim( char *string )
{
char *ss ;
char *sd ;
ss = sd = string ;
/* Move pointer to first non-whitespace character */
while ( *ss == ' ' || *ss == '\t' || *ss == '\n' || *ss == '\r')
ss++ ;
/* Close up leading whitespace */
while ( (*sd++ = *ss++) != '\0' )
;
/* Back up pointer to character before terminating NULL */
sd -= 2 ;
/* Replace trailing whitespace with NULLs */
while( sd >= string
&& ( *sd == ' ' || *sd == '\t' || *sd == '\n' || *sd == '\r' ) )
*sd-- = '\0' ;
return string ;
}
/*----------------------------------------------------------------------------+
| Convert a string to lower case. Return pointer to string. |
+----------------------------------------------------------------------------*/
char *strlower ( char *string )
{
char *sp = string ;
while ( *sp ) {
*sp = tolower((int)(*sp));
sp++ ;
}
return string;
}
/*----------------------------------------------------------------------------+
| Convert a string to Upper case. Return pointer to string. |
+----------------------------------------------------------------------------*/
char *strupper ( char *string )
{
char *sp = string ;
while ( *sp ) {
*sp = toupper((int)(*sp));
sp++ ;
}
return string;
}
/*----------------------------------------------------------------------------+
| Copy n characters from source to target string and append a trailing null. |
| Return a pointer to the target. (Length of target string must be n+1). |
+----------------------------------------------------------------------------*/
char *strncpy2 ( char *target, char *source, int n )
{
char *sp, *tp;
int count;
sp = source; tp = target; count = n;
while ( count-- > 0 && *sp ) {
*tp++ = *sp++ ;
}
*tp = '\0';
return target;
}
/*----------------------------------------------------------------------------+
| Convert high and low ulongs of a ulonglong to a double. |
+----------------------------------------------------------------------------*/
double hilo2dbl ( unsigned long high, unsigned long low )
{
#ifdef HAVE_UNSIGNED_LONG_LONG_INT
unsigned long long ull;
ull = (unsigned long long)high << 32 | (unsigned long long)low;
return (double)ull;
#else
return (double)high * 4294967296.0 + (double)low;
#endif
}
/*--------------------------------------------------------------------+
| Break up the string 'str' into tokens delimited by characters in |
| 'delim' and create the list 'tokv' of pointers to these tokens. |
| The original string is modified. Free 'tokv' after use. |
+--------------------------------------------------------------------*/
int tokenize ( char *str, char *delim, int *tokc, char ***tokv )
{
char *sp, *tp;
static int sizchptr = sizeof(char *);
*tokc = 0;
*tokv = NULL;
sp = str;
while ( *sp != '\0' ) {
/* Bypass leading delimiters */
while ( *sp != '\0' && strchr(delim, *sp) != NULL )
sp++;
if ( *sp == '\0' )
return 0;
tp = sp;
/* Advance to the next delimiter */
while ( *sp != '\0' && strchr(delim, *sp) == NULL )
sp++;
/* Terminate the token if not already at end of string */
if ( *sp != '\0' )
*sp++ = '\0';
/* Allocate space for the pointer */
if ( *tokc == 0 )
*tokv = calloc(1, sizchptr);
else
*tokv = realloc(*tokv, (*tokc + 1) * sizchptr);
if ( *tokv == NULL ) {
fprintf(stderr, "Unable to allocate memory in tokenize()\n");
exit(1);
}
(*tokv)[(*tokc)++] = tp;
}
/* Add a terminating NULL */
if ( *tokc == 0 )
*tokv = calloc(1, sizchptr);
else
*tokv = realloc(*tokv, (*tokc + 1) * sizchptr);
if ( *tokv == NULL ) {
fprintf(stderr, "Unable to allocate memory in tokenize()\n");
exit(1);
}
(*tokv)[(*tokc)] = (char *)NULL;
return 0;
}
/*--------------------------------------------------------------------+
| Copy maxlen-1 characters to target of the token delimited by delim |
| from the char string *nextpp. On return, *nextpp points to the |
| character following the token (or the part copied thereof). |
| The original string is unchanged. |
+--------------------------------------------------------------------*/
char *get_token( char *target, char **nextpp, char *delim, int maxlen )
{
char *sp, *tp;
int count = 0;
sp = *nextpp;
tp = target;
/* Bypass leading delimiters */
while ( *sp && strchr(delim, *sp) ) {
sp++ ;
}
/* Transfer up to maxlen-1 characters */
while ( *sp && !strchr(delim, *sp) && count < maxlen ) {
*tp++ = *sp++ ;
count++ ;
}
*nextpp = sp;
/* Terminate with a null character */
*tp = '\0';
return target;
}
/*---------------------------------------------------------------------+
| Left rotate the contents of an array. |
+---------------------------------------------------------------------*/
void lrotarray ( unsigned char *array, int length )
{
unsigned char hold;
int j;
hold = array[0];
for ( j = 0; j < length - 1; j++ )
array[j] = array[j + 1];
array[length - 1] = hold;
return;
}
/*---------------------------------------------------------------------+
| Right rotate the contents of an array. |
+---------------------------------------------------------------------*/
void rrotarray ( unsigned char *array, int length )
{
unsigned char hold;
int j;
hold = array[length - 1];
for ( j = length - 1; j > 0; j-- )
array[j] = array[j - 1];
array[0] = hold;
return;
}
/* X10 Encoding/Decoding functions */
/*---------------------------------------------------------------------+
| Convert housecode letter to x10 code. |
+---------------------------------------------------------------------*/
unsigned char hc2code ( char hc )
{
/* X10 codes for housecode letters A through P */
static unsigned char code[] =
{6,14,2,10,1,9,5,13,7,15,3,11,0,8,4,12};
return code[(toupper((int)hc) - 'A') & 0x0f];
}
/*---------------------------------------------------------------------+
| Convert x10 code to housecode letter. |
+---------------------------------------------------------------------*/
char code2hc ( unsigned char code )
{
char *hcode = "MECKOGAINFDLPHBJ";
return hcode[code & 0x0fu];
}
/*---------------------------------------------------------------------+
| Convert X10 unit number (1-16) to x10 code. |
+---------------------------------------------------------------------*/
unsigned char unit2code ( int unit )
{
/* X10 codes for unit 1 through 16 */
static unsigned char code[] =
{6,14,2,10,1,9,5,13,7,15,3,11,0,8,4,12};
return (unit > 0 && unit < 17) ? code[unit - 1] : 0xff;
}
/*---------------------------------------------------------------------+
| Convert X10 code to X10 unit number (1-16). |
+---------------------------------------------------------------------*/
int code2unit ( unsigned char code )
{
static int units[] = {13,5,3,11,15,7,1,9,14,6,4,12,16,8,2,10};
return units[code & 0x0fu];
}
/*---------------------------------------------------------------------+
| Convert bit position (0-15) in X10 bitmap to unit number. |
+---------------------------------------------------------------------*/
int bitpos2unit ( int bitpos )
{
static int units[] = {13,5,3,11,15,7,1,9,14,6,4,12,16,8,2,10};
return units[bitpos & 0x0f];
}
/*---------------------------------------------------------------------+
| Return X10 bitmap for Days of Week string. |
+---------------------------------------------------------------------*/
unsigned char dow2bmap ( char *dow )
{
char *pattern = "smtwtfs";
unsigned char bmap = 0;
unsigned char mask = 0x01;
char buffer[16];
int j;
if ( strlen(dow) != 7 )
return 0xff;
strncpy2(buffer, dow, sizeof(buffer) - 1);
strlower(buffer);
for ( j = 0; j < 7; j++ ) {
if ( buffer[j] == pattern[j] ) {
bmap |= mask;
mask = mask << 1 ;
}
else if ( buffer[j] == '.' )
mask = mask << 1 ;
else
return 0xff ;
}
return bmap;
}
/*---------------------------------------------------------+
| Return Days of Week string for X10 bitmap argument |
+---------------------------------------------------------*/
char *bmap2dow( unsigned char bmap )
{
static char buff[10];
int j;
char *days = "smtwtfs";
char *err = "-error-";
unsigned char mask = 0x01;
if ( bmap > 127 )
return err;
for ( j = 0; j < 7; j++ ) {
buff[j] = (mask & bmap) ? days[j] : '.' ;
mask = mask << 1;
}
buff[7] = '\0';
return buff;
}
/*---------------------------------------------------------+
| Return Linux tm_wday (Sun = 0) for X10 bitmap. |
| (Assumes only one wday represented in the bitmap.) |
+---------------------------------------------------------*/
int bmap2wday ( unsigned char bmap )
{
int j;
j = 0;
while ( (bmap = (bmap >> 1)) != 0 )
j++;
return j;
}
/*---------------------------------------------------------+
| Return ASCII weekday name for X10 DOW bitmap. |
| (Assumes only one wday represented in the bitmap.) |
+---------------------------------------------------------*/
char *bmap2ascdow ( unsigned char bmap )
{
return wday_name[bmap2wday(bmap)];
}
/*---------------------------------------------------------------------+
| Reverse the order of the lower 4 bits, e.g., 1 -> 8 and 8 -> 1 |
| while leaving the upper bits unchanged. |
+---------------------------------------------------------------------*/
unsigned char rev_low_nybble ( unsigned char input )
{
static unsigned char rev_table[] =
{0, 8, 4, 12, 2, 10, 6, 14, 1, 9, 5, 13, 3, 11, 7, 15};
int j;
j = (int)(input & 0x0fu);
return (input & 0xf0u) | rev_table[j];
}
/*---------------------------------------------------------------------+
| Reverse the order of the bits in a byte. |
+---------------------------------------------------------------------*/
unsigned char rev_byte_bits ( unsigned char input )
{
int j;
unsigned char output = 0;
for ( j = 0; j < 8; j++ ) {
if ( input & (1 << j) )
output |= (0x80 >> j);
}
return output;
}
/*---------------------------------------------------------------------+
| Rotate the x10 Day of Week bitmap one bit to the left. This has |
| the effect of moving the day of an event into the following day, |
| e.g., bmap(".mt..fs") ==> bmap("s.tw..s") |
+---------------------------------------------------------------------*/
unsigned char lrotbmap ( unsigned char bmap )
{
return ( ((bmap & 0x40u) >> 6) | ( (bmap & 0x3fu) << 1 ) );
}
/*---------------------------------------------------------------------+
| Rotate the x10 Day of Week bitmap one bit to the right. This has |
| the effect of moving the day of an event into the preceding day, |
| e.g., bmap(".mt..fs") ==> bmap("sm..tf.") |
+---------------------------------------------------------------------*/
unsigned char rrotbmap ( unsigned char bmap )
{
return ( ((bmap & 0x01u) << 6) | ( (bmap & 0x7fu) >> 1 ) );
}
/*---------------------------------------------------------------------+
| Return the code for a unit in a bitmap which is presumed to contain |
| only a single unit or 0. If the bitmap contains more than a single |
| unit, an error value of 0xff is returned. |
+---------------------------------------------------------------------*/
unsigned char single_bmap_unit( unsigned int bitmap )
{
unsigned int invmap[] = {6,14,2,10,1,9,5,13,7,15,3,11,0,8,4,12};
unsigned int mask = 1;
unsigned char units[17], nunits;
int j;
nunits = 0; units[0] = 0;
for ( j = 0; j < 16; j++ ) {
mask = 0x01 << invmap[j] ;
if ( bitmap & mask ) {
units[nunits++] = invmap[j];
}
}
return (nunits <= 1) ? units[0] : 0xff;
}
/*---------------------------------------------------------------------+
| Parse the units list and return an X10 unit bitmap containing only |
| the first unit in the units list, with unit 0 acceptable. |
+---------------------------------------------------------------------*/
unsigned int units2single ( char *str )
{
static int umap[] = {6,14,2,10,1,9,5,13,7,15,3,11,0,8,4,12};
int unit;
char buffer[256];
char errmsg[64];
char *tail, *sp;
tail = str;
if ( *get_token(buffer, &tail, "-,", 255) == '\0' )
return 0;
unit = (int)strtol(buffer, &sp, 10);
if ( *sp ) {
sprintf(errmsg,
"Warning: Invalid character '%c' in units list (ignored).\n", *sp);
store_error_message(errmsg);
return 0;
}
if ( unit < 0 || unit > 16 ) {
sprintf(errmsg, "Warning: Unit number %d outside range 0-16 (ignored).\n", unit);
store_error_message(errmsg);
return 0;
}
if ( unit == 0 )
return 0;
return ( 1 << umap[unit - 1] );
}
/*---------------------------------------------------------------------+
| Parse the flags list and return a long bitmap, with bit 0 = flag 1, |
| bit 1 = flag 2, etc. |
+---------------------------------------------------------------------*/
unsigned long flags2longmap ( char *str )
{
char buffer[256];
char errmsg[80];
char *tail, *sp;
int flagmax = 32;
int flist[32];
int j, ustart, flag;
unsigned long longmap;
if ( strchr(str, '*') ) {
longmap = 0xffffffff;
return longmap;
}
for ( j = 0; j < 32; j++ )
flist[j] = 0;
ustart = 0; tail = str;
while ( *(get_token(buffer, &tail, "-,", 255)) ) {
flag = (int)strtol(buffer, &sp, 10);
if ( *sp ) {
sprintf(errmsg, "Invalid char '%c' in flags list.", *sp);
store_error_message(errmsg);
return 0;
}
if ( flag < 1 || flag > flagmax ) {
sprintf(errmsg, "Flag number %d outside range 1-%d.", flag, flagmax);
store_error_message(errmsg);
return 0;
}
if ( *tail == ',' || *tail == '\0' ) {