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/* series.c: Functions for finding and reading the data files.
*
* Copyright (C) 2001-2006 by Brian Raiter, under the GNU General Public
* License. No warranty. See COPYING for details.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include "defs.h"
#include "err.h"
#include "fileio.h"
#include "solution.h"
#include "unslist.h"
#include "series.h"
/* The signature bytes of the data files.
*/
#define SIG_DATFILE 0xAAAC
#define SIG_DATFILE_MS 0x0002
#define SIG_DATFILE_LYNX 0x0102
/* The "signature bytes" of the configuration files.
*/
#define SIG_DACFILE 0x656C6966
/* Mini-structure for passing data in and out of findfiles().
*/
typedef struct seriesdata {
gameseries *list; /* the gameseries list */
int allocated; /* number of gameseries currently allocated */
int count; /* number of gameseries filled in */
int usedatdir; /* TRUE if the file is in seriesdatdir. */
} seriesdata;
/* The directory containing the series files (data files and
* configuration files).
*/
char *seriesdir = NULL;
/* The directory containing the configured data files.
*/
char *seriesdatdir = NULL;
/* Calculate a hash value for the given block of data.
*/
static unsigned long hashvalue(unsigned char const *data, unsigned int size)
{
static unsigned long remainders[256] = {
0x00000000, 0x04C11DB7, 0x09823B6E, 0x0D4326D9, 0x130476DC, 0x17C56B6B,
0x1A864DB2, 0x1E475005, 0x2608EDB8, 0x22C9F00F, 0x2F8AD6D6, 0x2B4BCB61,
0x350C9B64, 0x31CD86D3, 0x3C8EA00A, 0x384FBDBD, 0x4C11DB70, 0x48D0C6C7,
0x4593E01E, 0x4152FDA9, 0x5F15ADAC, 0x5BD4B01B, 0x569796C2, 0x52568B75,
0x6A1936C8, 0x6ED82B7F, 0x639B0DA6, 0x675A1011, 0x791D4014, 0x7DDC5DA3,
0x709F7B7A, 0x745E66CD, 0x9823B6E0, 0x9CE2AB57, 0x91A18D8E, 0x95609039,
0x8B27C03C, 0x8FE6DD8B, 0x82A5FB52, 0x8664E6E5, 0xBE2B5B58, 0xBAEA46EF,
0xB7A96036, 0xB3687D81, 0xAD2F2D84, 0xA9EE3033, 0xA4AD16EA, 0xA06C0B5D,
0xD4326D90, 0xD0F37027, 0xDDB056FE, 0xD9714B49, 0xC7361B4C, 0xC3F706FB,
0xCEB42022, 0xCA753D95, 0xF23A8028, 0xF6FB9D9F, 0xFBB8BB46, 0xFF79A6F1,
0xE13EF6F4, 0xE5FFEB43, 0xE8BCCD9A, 0xEC7DD02D, 0x34867077, 0x30476DC0,
0x3D044B19, 0x39C556AE, 0x278206AB, 0x23431B1C, 0x2E003DC5, 0x2AC12072,
0x128E9DCF, 0x164F8078, 0x1B0CA6A1, 0x1FCDBB16, 0x018AEB13, 0x054BF6A4,
0x0808D07D, 0x0CC9CDCA, 0x7897AB07, 0x7C56B6B0, 0x71159069, 0x75D48DDE,
0x6B93DDDB, 0x6F52C06C, 0x6211E6B5, 0x66D0FB02, 0x5E9F46BF, 0x5A5E5B08,
0x571D7DD1, 0x53DC6066, 0x4D9B3063, 0x495A2DD4, 0x44190B0D, 0x40D816BA,
0xACA5C697, 0xA864DB20, 0xA527FDF9, 0xA1E6E04E, 0xBFA1B04B, 0xBB60ADFC,
0xB6238B25, 0xB2E29692, 0x8AAD2B2F, 0x8E6C3698, 0x832F1041, 0x87EE0DF6,
0x99A95DF3, 0x9D684044, 0x902B669D, 0x94EA7B2A, 0xE0B41DE7, 0xE4750050,
0xE9362689, 0xEDF73B3E, 0xF3B06B3B, 0xF771768C, 0xFA325055, 0xFEF34DE2,
0xC6BCF05F, 0xC27DEDE8, 0xCF3ECB31, 0xCBFFD686, 0xD5B88683, 0xD1799B34,
0xDC3ABDED, 0xD8FBA05A, 0x690CE0EE, 0x6DCDFD59, 0x608EDB80, 0x644FC637,
0x7A089632, 0x7EC98B85, 0x738AAD5C, 0x774BB0EB, 0x4F040D56, 0x4BC510E1,
0x46863638, 0x42472B8F, 0x5C007B8A, 0x58C1663D, 0x558240E4, 0x51435D53,
0x251D3B9E, 0x21DC2629, 0x2C9F00F0, 0x285E1D47, 0x36194D42, 0x32D850F5,
0x3F9B762C, 0x3B5A6B9B, 0x0315D626, 0x07D4CB91, 0x0A97ED48, 0x0E56F0FF,
0x1011A0FA, 0x14D0BD4D, 0x19939B94, 0x1D528623, 0xF12F560E, 0xF5EE4BB9,
0xF8AD6D60, 0xFC6C70D7, 0xE22B20D2, 0xE6EA3D65, 0xEBA91BBC, 0xEF68060B,
0xD727BBB6, 0xD3E6A601, 0xDEA580D8, 0xDA649D6F, 0xC423CD6A, 0xC0E2D0DD,
0xCDA1F604, 0xC960EBB3, 0xBD3E8D7E, 0xB9FF90C9, 0xB4BCB610, 0xB07DABA7,
0xAE3AFBA2, 0xAAFBE615, 0xA7B8C0CC, 0xA379DD7B, 0x9B3660C6, 0x9FF77D71,
0x92B45BA8, 0x9675461F, 0x8832161A, 0x8CF30BAD, 0x81B02D74, 0x857130C3,
0x5D8A9099, 0x594B8D2E, 0x5408ABF7, 0x50C9B640, 0x4E8EE645, 0x4A4FFBF2,
0x470CDD2B, 0x43CDC09C, 0x7B827D21, 0x7F436096, 0x7200464F, 0x76C15BF8,
0x68860BFD, 0x6C47164A, 0x61043093, 0x65C52D24, 0x119B4BE9, 0x155A565E,
0x18197087, 0x1CD86D30, 0x029F3D35, 0x065E2082, 0x0B1D065B, 0x0FDC1BEC,
0x3793A651, 0x3352BBE6, 0x3E119D3F, 0x3AD08088, 0x2497D08D, 0x2056CD3A,
0x2D15EBE3, 0x29D4F654, 0xC5A92679, 0xC1683BCE, 0xCC2B1D17, 0xC8EA00A0,
0xD6AD50A5, 0xD26C4D12, 0xDF2F6BCB, 0xDBEE767C, 0xE3A1CBC1, 0xE760D676,
0xEA23F0AF, 0xEEE2ED18, 0xF0A5BD1D, 0xF464A0AA, 0xF9278673, 0xFDE69BC4,
0x89B8FD09, 0x8D79E0BE, 0x803AC667, 0x84FBDBD0, 0x9ABC8BD5, 0x9E7D9662,
0x933EB0BB, 0x97FFAD0C, 0xAFB010B1, 0xAB710D06, 0xA6322BDF, 0xA2F33668,
0xBCB4666D, 0xB8757BDA, 0xB5365D03, 0xB1F740B4
};
unsigned long accum;
unsigned int i, j;
for (j = 0, accum = 0xFFFFFFFFUL ; j < size ; ++j) {
i = ((accum >> 24) ^ data[j]) & 0x000000FF;
accum = (accum << 8) ^ remainders[i];
}
return accum ^ 0xFFFFFFFFUL;
}
/*
* Reading the data file.
*/
/* Examine the top of a data file and identify its type. FALSE is
* returned if any header bytes appear to be invalid.
*/
static int readseriesheader(gameseries *series)
{
unsigned short val16;
int ruleset;
if (!filereadint16(&series->mapfile, &val16, "not a valid data file"))
return FALSE;
if (val16 != SIG_DATFILE)
return fileerr(&series->mapfile, "not a valid data file");
if (!filereadint16(&series->mapfile, &val16, "not a valid data file"))
return FALSE;
switch (val16) {
case SIG_DATFILE_MS: ruleset = Ruleset_MS; break;
case SIG_DATFILE_LYNX: ruleset = Ruleset_Lynx; break;
default:
fileerr(&series->mapfile, "data file uses an unrecognized ruleset");
return FALSE;
}
if (series->ruleset == Ruleset_None)
series->ruleset = ruleset;
if (!filereadint16(&series->mapfile, &val16, "not a valid data file"))
return FALSE;
series->count = val16;
if (!series->count) {
fileerr(&series->mapfile, "file contains no maps");
return FALSE;
}
return TRUE;
}
/* Read a single level out of the given data file. The level's name,
* password, and time limit are extracted from the data.
*/
static int readleveldata(fileinfo *file, gamesetup *game)
{
unsigned char *data;
unsigned char const *dataend;
unsigned short size;
int n;
if (!filereadint16(file, &size, NULL))
return FALSE;
data = filereadbuf(file, size, "missing or invalid level data");
if (!data)
return FALSE;
if (size < 2) {
fileerr(file, "invalid level data");
free(data);
return FALSE;
}
game->levelsize = size;
game->leveldata = data;
dataend = game->leveldata + game->levelsize;
game->number = data[0] | (data[1] << 8);
if (size < 10)
goto badlevel;
game->time = data[2] | (data[3] << 8);
game->besttime = TIME_NIL;
game->passwd[0] = '\0';
data += data[8] | (data[9] << 8);
data += 10;
if (data + 2 >= dataend)
goto badlevel;
data += data[0] | (data[1] << 8);
data += 2;
size = data[0] | (data[1] << 8);
data += 2;
if (data + size != dataend)
warn("level %d: inconsistent size data (%d vs %d)",
game->number, dataend - data, size);
while (data + 2 < dataend) {
size = data[1];
data += 2;
if (size > dataend - data)
size = dataend - data;
switch (data[-2]) {
case 1:
if (size > 1)
game->time = data[0] | (data[1] << 8);
break;
case 3:
memcpy(game->name, data, size);
game->name[size] = '\0';
break;
case 6:
for (n = 0 ; n < size && n < 15 && data[n] ; ++n)
game->passwd[n] = data[n] ^ 0x99;
game->passwd[n] = '\0';
break;
case 8:
warn("level %d: ignoring field 8 password", game->number);
break;
}
data += size;
}
if (!game->passwd[0] || strlen(game->passwd) != 4)
goto badlevel;
game->levelhash = hashvalue(game->leveldata, game->levelsize);
return TRUE;
badlevel:
free(game->leveldata);
game->levelsize = 0;
game->leveldata = NULL;
errmsg(file->name, "level %d: invalid level data", game->number);
return FALSE;
}
/* Assuming that the series passed in is in fact the original
* chips.dat file, this function undoes the changes that MS introduced
* to the original Lynx levels. A rather "ad hack" way to accomplish
* this, but it permits this fixup to occur without requiring the user
* to perform a special one-time task. Four passwords are repaired, a
* possibly missing wall in level 88 is restored, the beartrap wirings
* of levels 99 and 111 are fixed, the layout changes to 121 and 127
* are undone, and level 145 is removed.
*/
static int undomschanges(gameseries *series)
{
struct { int num, pos, val; } *fixup, fixups[] = {
{ 5, 0x011D, 'P' ^ 0x99 }, { 95, 0x035F, 'W' ^ 0x99 },
{ 9, 0x032D, 'V' ^ 0x99 }, { 95, 0x0360, 'V' ^ 0x99 },
{ 9, 0x032E, 'U' ^ 0x99 }, { 95, 0x0361, 'H' ^ 0x99 },
{ 27, 0x01E7, 'D' ^ 0x99 }, { 95, 0x0362, 'Y' ^ 0x99 },
{ 87, 0x0148, 0x09 }, { 120, 0x0195, 0x00 },
{ 98, 0x0340, 8 }, { 98, 0x0342, 14 },
{ 98, 0x034A, 23 }, { 98, 0x034C, 14 },
{ 98, 0x0354, 8 }, { 98, 0x0356, 16 },
{ 98, 0x035E, 23 }, { 98, 0x0360, 16 },
{ 98, 0x0368, 16 }, { 98, 0x036A, 18 },
{ 98, 0x0372, 6 }, { 98, 0x0374, 20 },
{ 98, 0x037C, 16 }, { 98, 0x037E, 20 },
{ 98, 0x0386, 23 }, { 98, 0x0388, 23 },
{ 98, 0x0390, 23 }, { 98, 0x0392, 25 },
{ 110, 0x02B6, 22 }, { 110, 0x02B8, 11 },
{ 110, 0x02C0, 15 }, { 110, 0x02C2, 6 },
{ 126, 0x00B6, 0x00 }, { 126, 0x00C2, 0x01 },
{ 126, 0x01B6, 0x01 }, { 126, 0x01C2, 0x00 },
{ -1, -1, -1 }
};
if (series->count != 149)
return FALSE;
for (fixup = fixups ; fixup->num >= 0 ; ++fixup)
if (series->games[fixup->num].levelsize <= fixup->pos)
return FALSE;
free(series->games[144].leveldata);
memmove(series->games + 144, series->games + 145,
4 * sizeof *series->games);
--series->count;
for (fixup = fixups ; fixup->num >= 0 ; ++fixup)
series->games[fixup->num].leveldata[fixup->pos] = fixup->val;
series->games[5].passwd[3] = 'P';
series->games[9].passwd[0] = 'V';
series->games[9].passwd[1] = 'U';
series->games[27].passwd[3] = 'D';
series->games[95].passwd[0] = 'W';
series->games[95].passwd[1] = 'V';
series->games[95].passwd[2] = 'H';
series->games[95].passwd[3] = 'Y';
return TRUE;
}
/*
* Functions to read the data files.
*/
/* Load all levels from the given data file, and all of the user's
* saved solutions.
*/
int readseriesfile(gameseries *series)
{
int n;
if (series->gsflags & GSF_ALLMAPSREAD)
return TRUE;
if (series->count <= 0) {
errmsg(series->filebase, "cannot read from empty level set");
return FALSE;
}
if (!series->mapfile.fp) {
if (!openfileindir(&series->mapfile, seriesdir,
series->mapfilename, "rb", "unknown error"))
return FALSE;
if (!readseriesheader(series))
return FALSE;
}
xalloc(series->games, series->count * sizeof *series->games);
memset(series->games + series->allocated, 0,
(series->count - series->allocated) * sizeof *series->games);
series->allocated = series->count;
n = 0;
while (n < series->count && !filetestend(&series->mapfile)) {
if (readleveldata(&series->mapfile, series->games + n))
++n;
else
--series->count;
}
fileclose(&series->mapfile, NULL);
series->gsflags |= GSF_ALLMAPSREAD;
if (series->gsflags & GSF_LYNXFIXES)
undomschanges(series);
markunsolvablelevels(series);
readsolutions(series);
return TRUE;
}
/* Free all memory allocated for the given gameseries.
*/
void freeseriesdata(gameseries *series)
{
gamesetup *game;
int n;
clearsolutions(series);
fileclose(&series->mapfile, NULL);
clearfileinfo(&series->mapfile);
free(series->mapfilename);
series->mapfilename = NULL;
free(series->savefilename);
series->savefilename = NULL;
series->gsflags = 0;
series->solheaderflags = 0;
for (n = 0, game = series->games ; n < series->count ; ++n, ++game) {
free(game->leveldata);
game->leveldata = NULL;
game->levelsize = 0;
}
free(series->games);
series->games = NULL;
series->allocated = 0;
series->count = 0;
series->ruleset = Ruleset_None;
series->gsflags = 0;
*series->filebase = '\0';
*series->name = '\0';
}
/*
* Reading the configuration file.
*/
/* Parse the lines of the given configuration file. The return value
* is the name of the corresponding data file, or NULL if the
* configuration file could not be read or contained a syntax error.
*/
static char *readconfigfile(fileinfo *file, gameseries *series)
{
static char datfilename[256];
char buf[256];
char name[256];
char value[256];
char *p;
int lineno, n;
n = sizeof buf - 1;
if (!filegetline(file, buf, &n, "invalid configuration file"))
return NULL;
if (sscanf(buf, "file = %s", datfilename) != 1) {
fileerr(file, "bad filename in configuration file");
return NULL;
}
for (lineno = 2 ; ; ++lineno) {
n = sizeof buf - 1;
if (!filegetline(file, buf, &n, NULL))
break;
for (p = buf ; isspace(*p) ; ++p) ;
if (!*p || *p == '#')
continue;
if (sscanf(buf, "%[^= \t] = %s", name, value) != 2) {
fileerr(file, "invalid configuration file syntax");
return NULL;
}
for (p = name ; (*p = tolower(*p)) != '\0' ; ++p) ;
if (!strcmp(name, "name")) {
sprintf(series->name, "%.*s", sizeof series->name - 1,
skippathname(value));
} else if (!strcmp(name, "lastlevel")) {
n = (int)strtol(value, &p, 10);
if (*p || n <= 0) {
fileerr(file, "invalid lastlevel in configuration file");
return NULL;
}
series->final = n;
} else if (!strcmp(name, "ruleset")) {
for (p = value ; (*p = tolower(*p)) != '\0' ; ++p) ;
if (strcmp(value, "ms") && strcmp(value, "lynx")) {
fileerr(file, "invalid ruleset in configuration file");
return NULL;
}
series->ruleset = *value == 'm' ? Ruleset_MS : Ruleset_Lynx;
} else if (!strcmp(name, "usepasswords")) {
if (tolower(*value) == 'n')
series->gsflags |= GSF_IGNOREPASSWDS;
else
series->gsflags &= ~GSF_IGNOREPASSWDS;
} else if (!strcmp(name, "fixlynx")) {
if (tolower(*value) == 'n')
series->gsflags &= ~GSF_LYNXFIXES;
else
series->gsflags |= GSF_LYNXFIXES;
} else {
warn("line %d: directive \"%s\" unknown", lineno, name);
fileerr(file, "unrecognized setting in configuration file");
return NULL;
}
}
return datfilename;
}
/*
* Functions to locate the series files.
*/
/* Open the given file and read the information in the file header (or
* the entire file if it is a configuration file), then allocate and
* initialize a gameseries structure for the file and add it to the
* list stored under the second argument. This function is used as a
* findfiles() callback.
*/
static int getseriesfile(char *filename, void *data)
{
fileinfo file;
seriesdata *sdata = (seriesdata*)data;
gameseries *series;
unsigned long magic;
char *datfilename;
int config, f;
clearfileinfo(&file);
if (!openfileindir(&file, seriesdir, filename, "rb", "unknown error"))
return 0;
if (!filereadint32(&file, &magic, "unexpected EOF")) {
fileclose(&file, NULL);
return 0;
}
filerewind(&file, NULL);
if (magic == SIG_DACFILE) {
config = TRUE;
} else if ((magic & 0xFFFF) == SIG_DATFILE) {
config = FALSE;
} else {
fileerr(&file, "not a valid data file or configuration file");
fileclose(&file, NULL);
return 0;
}
if (sdata->count >= sdata->allocated) {
sdata->allocated = sdata->count + 1;
xalloc(sdata->list, sdata->allocated * sizeof *sdata->list);
}
series = sdata->list + sdata->count;
series->mapfilename = NULL;
clearfileinfo(&series->savefile);
series->savefilename = NULL;
series->gsflags = 0;
series->solheaderflags = 0;
series->allocated = 0;
series->count = 0;
series->final = 0;
series->ruleset = Ruleset_None;
series->games = NULL;
sprintf(series->filebase, "%.*s", sizeof series->filebase - 1, filename);
sprintf(series->name, "%.*s", sizeof series->name - 1,
skippathname(filename));
f = FALSE;
if (config) {
fileclose(&file, NULL);
if (!openfileindir(&file, seriesdir, filename, "r", "unknown error"))
return 0;
clearfileinfo(&series->mapfile);
free(series->mapfilename);
series->mapfilename = NULL;
datfilename = readconfigfile(&file, series);
fileclose(&file, NULL);
if (datfilename) {
if (openfileindir(&series->mapfile, seriesdatdir,
datfilename, "rb", NULL))
f = readseriesheader(series);
else
warn("cannot use %s: %s unavailable", filename, datfilename);
fileclose(&series->mapfile, NULL);
clearfileinfo(&series->mapfile);
if (f)
series->mapfilename = getpathforfileindir(seriesdatdir,
datfilename);
}
} else {
series->mapfile = file;
f = readseriesheader(series);
fileclose(&series->mapfile, NULL);
clearfileinfo(&series->mapfile);
if (f)
series->mapfilename = getpathforfileindir(seriesdir, filename);
}
if (f)
++sdata->count;
return 0;
}
/* A callback function to compare two gameseries structures by
* comparing their filenames.
*/
static int gameseriescmp(void const *a, void const *b)
{
return strcmp(((gameseries*)a)->name, ((gameseries*)b)->name);
}
/* Search the series directory and generate an array of gameseries
* structures corresponding to the data files found there. The array
* is returned through list, and the size of the array is returned
* through count. If preferred is not NULL, then the array returned
* will only contain the series with that string as its filename
* (presuming it can be found). The program will be aborted if a
* serious error occurs or if no series can be found.
*/
static int getseriesfiles(char const *preferred, gameseries **list, int *count)
{
seriesdata s;
int n;
s.list = NULL;
s.allocated = 0;
s.count = 0;
s.usedatdir = FALSE;
if (preferred && *preferred && haspathname(preferred)) {
if (getseriesfile((char*)preferred, &s) < 0)
return FALSE;
if (!s.count) {
errmsg(preferred, "couldn't read data file");
return FALSE;
}
*seriesdir = '\0';
s.list[0].gsflags |= GSF_NODEFAULTSAVE;
} else {
if (!*seriesdir)
return FALSE;
if (!findfiles(seriesdir, &s, getseriesfile) || !s.count) {
errmsg(seriesdir, "directory contains no data files");
return FALSE;
}
if (preferred && *preferred) {
for (n = 0 ; n < s.count ; ++n) {
if (!strcmp(s.list[n].name, preferred)) {
s.list[0] = s.list[n];
s.count = 1;
n = 0;
break;
}
}
if (n == s.count) {
errmsg(preferred, "no such data file");
return FALSE;
}
}
if (s.count > 1)
qsort(s.list, s.count, sizeof *s.list, gameseriescmp);
}
*list = s.list;
*count = s.count;
return TRUE;
}
/* Produce a list of the series that are available for play. An array
* of gameseries structures is returned through pserieslist, the size
* of the array is returned through pcount, and a table of the the
* filenames is returned through table. preferredfile, if not NULL,
* limits the results to just the series with that filename.
*/
int createserieslist(char const *preferredfile, gameseries **pserieslist,
int *pcount, tablespec *table)
{
static char const *rulesetname[Ruleset_Count];
gameseries *serieslist;
char **ptrs;
char *textheap;
int listsize;
int used, col, n, y;
if (!getseriesfiles(preferredfile, &serieslist, &listsize))
return FALSE;
if (!table) {
*pserieslist = serieslist;
*pcount = listsize;
return TRUE;
}
col = 8;
for (n = 0 ; n < listsize ; ++n)
if (col < (int)strlen(serieslist[n].name))
col = strlen(serieslist[n].name);
if (col > 48)
col = 48;
rulesetname[Ruleset_Lynx] = "Lynx";
rulesetname[Ruleset_MS] = "MS";
ptrs = malloc((listsize + 1) * 2 * sizeof *ptrs);
textheap = malloc((listsize + 1) * (col + 32));
if (!ptrs || !textheap)
memerrexit();
n = 0;
used = 0;
ptrs[n++] = textheap + used;
used += 1 + sprintf(textheap + used, "1-Filename");
ptrs[n++] = textheap + used;
used += 1 + sprintf(textheap + used, "1.Ruleset");
for (y = 0 ; y < listsize ; ++y) {
ptrs[n++] = textheap + used;
used += 1 + sprintf(textheap + used,
"1-%-*s", col, serieslist[y].name);
ptrs[n++] = textheap + used;
used += 1 + sprintf(textheap + used,
"1.%s", rulesetname[serieslist[y].ruleset]);
}
*pserieslist = serieslist;
*pcount = listsize;
table->rows = listsize + 1;
table->cols = 2;
table->sep = 2;
table->collapse = 0;
table->items = ptrs;
return TRUE;
}
/* Make an independent copy of a single gameseries structure from list.
*/
void getseriesfromlist(gameseries *dest, gameseries const *list, int index)
{
int n;
*dest = list[index];
n = strlen(list[index].mapfilename) + 1;
if (!(dest->mapfilename = malloc(n)))
memerrexit();
memcpy(dest->mapfilename, list[index].mapfilename, n);
}
/* Free all memory allocated by the createserieslist() table.
*/
void freeserieslist(gameseries *list, int count, tablespec *table)
{
int n;
if (list) {
for (n = 0 ; n < count ; ++n)
free(list[n].mapfilename);
free(list);
}
if (table) {
free((void*)table->items[0]);
free(table->items);
}
}
/*
* Miscellaneous functions
*/
/* A function for looking up a specific level in a series by number
* and/or password.
*/
int findlevelinseries(gameseries const *series, int number, char const *passwd)
{
int i, n;
n = -1;
if (number) {
for (i = 0 ; i < series->count ; ++i) {
if (series->games[i].number == number) {
if (!passwd || !strcmp(series->games[i].passwd, passwd)) {
if (n >= 0)
return -1;
n = i;
}
}
}
} else if (passwd) {
for (i = 0 ; i < series->count ; ++i) {
if (!strcmp(series->games[i].passwd, passwd)) {
if (n >= 0)
return -1;
n = i;
}
}
} else {
return -1;
}
return n;
}
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