--- deliantra/server/common/utils.C 2007/01/15 21:06:18 1.39 +++ deliantra/server/common/utils.C 2016/11/16 23:41:59 1.104 @@ -1,29 +1,27 @@ /* - * CrossFire, A Multiplayer game for X-windows - * - * Copyright (C) 2005, 2006, 2007 Marc Lehmann & Crossfire+ Development Team - * Copyright (C) 2002 Mark Wedel & Crossfire Development Team - * Copyright (C) 1992 Frank Tore Johansen - * - * 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 2 of the License, or - * (at your option) any later version. - * + * This file is part of Deliantra, the Roguelike Realtime MMORPG. + * + * Copyright (©) 2005,2006,2007,2008,2009,2010,2011,2012,2013,2014,2015,2016 Marc Alexander Lehmann / Robin Redeker / the Deliantra team + * + * Deliantra is free software: you can redistribute it and/or modify it under + * the terms of the Affero 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 + * 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, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. * - * The authors can be reached via e-mail at + * You should have received a copy of the Affero GNU General Public License + * and the GNU General Public License along with this program. If not, see + * . + * + * The authors can be reached via e-mail to */ /* - * General convenience functions for crossfire. + * General convenience functions for deliantra. */ #include @@ -34,582 +32,267 @@ #include #include -#include #include +#include -#include +#include +#include -/* - * The random functions here take luck into account when rolling random - * dice or numbers. This function has less of an impact the larger the - * difference becomes in the random numbers. IE, the effect is lessened - * on a 1-1000 roll, vs a 1-6 roll. This can be used by crafty programmers, - * to specifically disable luck in certain rolls, simply by making the - * numbers larger (ie, 1d1000 > 500 vs 1d6 > 3) - */ +#include -/* - * Roll a random number between min and max. Uses op to determine luck, - * and if goodbad is non-zero, luck increases the roll, if zero, it decreases. - * Generally, op should be the player/caster/hitter requesting the roll, - * not the recipient (ie, the poor slob getting hit). [garbled 20010916] - */ +refcnt_base::refcnt_t refcnt_dummy; +ssize_t slice_alloc; -int -random_roll (int min, int max, const object *op, int goodbad) +#if !GCC_VERSION(3,4) +int least_significant_bit (uint32_t x) { - int omin, diff, luck, base, ran; - - omin = min; - diff = max - min + 1; - ((diff > 2) ? (base = 20) : (base = 50)); /* d2 and d3 are corner cases */ + x &= -x; // this isolates the lowest bit - if (max < 1 || diff < 1) - { - LOG (llevError, "Calling random_roll with min=%d max=%d\n", min, max); - return (min); /* avoids a float exception */ - } + int r = 0; - ran = RANDOM (); + if (x & 0xaaaaaaaa) r += 1; + if (x & 0xcccccccc) r += 2; + if (x & 0xf0f0f0f0) r += 4; + if (x & 0xff00ff00) r += 8; + if (x & 0xffff0000) r += 16; - if (op->type != PLAYER) - return ((ran % diff) + min); - - luck = op->stats.luck; - if (RANDOM () % base < MIN (10, abs (luck))) - { - /* we have a winner */ - ((luck > 0) ? (luck = 1) : (luck = -1)); - diff -= luck; - if (diff < 1) - return (omin); /*check again */ - ((goodbad) ? (min += luck) : (diff)); - - return (MAX (omin, MIN (max, (ran % diff) + min))); - } - return ((ran % diff) + min); + return r; } +#endif -/* - * This is a 64 bit version of random_roll above. This is needed - * for exp loss calculations for players changing religions. - */ +/******************************************************************************/ -sint64 -random_roll64 (sint64 min, sint64 max, const object *op, int goodbad) +/* Checks a player-provided string which will become the msg property of + * an object for dangerous input. + */ +bool +msg_is_safe (const char *msg) { - sint64 omin, diff, luck, ran; - int base; + bool safe = true; - omin = min; - diff = max - min + 1; - ((diff > 2) ? (base = 20) : (base = 50)); /* d2 and d3 are corner cases */ + /* Trying to cheat by getting data into the object */ + if (!strncmp (msg, "endmsg", sizeof ("endmsg") - 1) + || strstr (msg, "\nendmsg")) + safe = false; - if (max < 1 || diff < 1) - { - LOG (llevError, "Calling random_roll with min=%" PRId64 " max=%" PRId64 "\n", min, max); - return (min); /* avoids a float exception */ - } + /* Trying to make the object talk, and potentially access arbitrary code */ + if (object::msg_has_dialogue (msg)) + safe = false; - /* Don't know of a portable call to get 64 bit random values. - * So make a call to get two 32 bit random numbers, and just to - * a little byteshifting. Do make sure the first one is only - * 32 bit, so we don't get skewed results - */ - ran = (RANDOM () & 0xffffffff) | ((sint64) RANDOM () << 32); + return safe; +} - if (op->type != PLAYER) - return ((ran % diff) + min); +///////////////////////////////////////////////////////////////////////////// - luck = op->stats.luck; - if (RANDOM () % base < MIN (10, abs (luck))) +void +fork_abort (const char *msg) +{ + if (!fork ()) { - /* we have a winner */ - ((luck > 0) ? (luck = 1) : (luck = -1)); - diff -= luck; - if (diff < 1) - return (omin); /*check again */ - ((goodbad) ? (min += luck) : (diff)); + signal (SIGINT , SIG_IGN); + signal (SIGTERM, SIG_IGN); + signal (SIGABRT, SIG_IGN); + + signal (SIGSEGV, SIG_DFL); + signal (SIGFPE , SIG_DFL); +#ifdef SIGBUS + signal (SIGBUS , SIG_DFL); +#endif + signal (SIGILL , SIG_DFL); + signal (SIGTRAP, SIG_DFL); - return (MAX (omin, MIN (max, (ran % diff) + min))); - } - return ((ran % diff) + min); -} + // try to put corefiles into a subdirectory, if existing, to allow + // an administrator to reduce the I/O load. + chdir ("cores"); -/* - * Roll a number of dice (2d3, 4d6). Uses op to determine luck, - * If goodbad is non-zero, luck increases the roll, if zero, it decreases. - * Generally, op should be the player/caster/hitter requesting the roll, - * not the recipient (ie, the poor slob getting hit). - * The args are num D size (ie 4d6) [garbled 20010916] - */ + // try to detach us from as many external dependencies as possible + // as coredumping can take time by closing all fd's. + { + struct rlimit lim; -int -die_roll (int num, int size, const object *op, int goodbad) -{ - int min, diff, luck, total, i, gotlucky, base, ran; + if (getrlimit (RLIMIT_NOFILE, &lim)) + lim.rlim_cur = 1024; - diff = size; - min = 1; - luck = total = gotlucky = 0; - ((diff > 2) ? (base = 20) : (base = 50)); /* d2 and d3 are corner cases */ - if (size < 2 || diff < 1) - { - LOG (llevError, "Calling die_roll with num=%d size=%d\n", num, size); - return (num); /* avoids a float exception */ - } + for (int i = 0; i < lim.rlim_cur; ++i) + close (i); + } - if (op->type == PLAYER) - luck = op->stats.luck; + { + sigset_t empty; + sigemptyset (&empty); + sigprocmask (SIG_SETMASK, &empty, 0); + } - for (i = 0; i < num; i++) - { - if (RANDOM () % base < MIN (10, abs (luck)) && !gotlucky) - { - /* we have a winner */ - gotlucky++; - ((luck > 0) ? (luck = 1) : (luck = -1)); - diff -= luck; - if (diff < 1) - return (num); /*check again */ - ((goodbad) ? (min += luck) : (diff)); - ran = RANDOM (); - total += MAX (1, MIN (size, (ran % diff) + min)); - } - else - { - total += RANDOM () % size + 1; - } + // try to coredump with SIGTRAP + kill (getpid (), SIGTRAP); + abort (); } - return (total); -} -/* - * Another convenience function. Returns a number between min and max. - * It is suggested one use these functions rather than RANDOM()%, as it - * would appear that a number of off-by-one-errors exist due to improper - * use of %. This should also prevent SIGFPE. - */ + LOG (llevError, "fork abort: %s\n", msg); +} -int -rndm (int min, int max) +void * +salloc_ (int n) throw (std::bad_alloc) { - int diff; + void *ptr = g_slice_alloc (n); - diff = max - min + 1; - if (max < 1 || diff < 1) - return (min); + if (!ptr) + throw std::bad_alloc (); - return (RANDOM () % diff + min); + slice_alloc += n; + return ptr; } -/* decay and destroy perishable items in a map */ -void -maptile::decay_objects () +void * +salloc_ (int n, void *src) throw (std::bad_alloc) { - if (!spaces) - return; - - for (mapspace *ms = spaces + size (); ms-- > spaces; ) - for (object *above, *op = ms->bot; op; op = above) - { - above = op->above; + void *ptr = salloc_ (n); - bool destroy = 0; + if (src) + memcpy (ptr, src, n); + else + memset (ptr, 0, n); - // do not decay anything above unique floor tiles (yet :) - if (QUERY_FLAG (op, FLAG_IS_FLOOR) && QUERY_FLAG (op, FLAG_UNIQUE)) - break; - - if (QUERY_FLAG (op, FLAG_IS_FLOOR) - || QUERY_FLAG (op, FLAG_OBJ_ORIGINAL) - || QUERY_FLAG (op, FLAG_OBJ_SAVE_ON_OVL) - || QUERY_FLAG (op, FLAG_UNIQUE) - || QUERY_FLAG (op, FLAG_OVERLAY_FLOOR) - || QUERY_FLAG (op, FLAG_UNPAID) - || op->is_alive ()) - ; // do not decay - else if (op->is_weapon ()) - { - op->stats.dam--; - if (op->stats.dam < 0) - destroy = 1; - } - else if (op->is_armor ()) - { - op->stats.ac--; - if (op->stats.ac < 0) - destroy = 1; - } - else if (op->type == FOOD) - { - op->stats.food -= rndm (5, 20); - if (op->stats.food < 0) - destroy = 1; - } - else - { - int mat = op->material; - - if (mat & M_PAPER - || mat & M_LEATHER - || mat & M_WOOD - || mat & M_ORGANIC - || mat & M_CLOTH - || mat & M_LIQUID - || (mat & M_IRON && rndm (1, 5) == 1) - || (mat & M_GLASS && rndm (1, 2) == 1) - || ((mat & M_STONE || mat & M_ADAMANT) && rndm (1, 10) == 1) - || ((mat & M_SOFT_METAL || mat & M_BONE) && rndm (1, 3) == 1) - || (mat & M_ICE && temp > 32)) - destroy = 1; - } - - /* adjust overall chance below */ - if (destroy && rndm (0, 1)) - op->destroy (); - } + return ptr; } -/* convert materialname to materialtype_t */ +/******************************************************************************/ -materialtype_t * -name_to_material (const char *name) -{ - materialtype_t *mt, *nmt; +#if DEBUG_SALLOC - mt = NULL; - for (nmt = materialt; nmt != NULL && nmt->next != NULL; nmt = nmt->next) - { - if (strcmp (name, nmt->name) == 0) - { - mt = nmt; - break; - } - } - return mt; -} +#define MAGIC 0xa1b2c35543deadLL -/* when doing transmutation of objects, we have to recheck the resistances, - * as some that did not apply previously, may apply now. - */ - -void -transmute_materialname (object *op, const object *change) +void * +g_slice_alloc (unsigned long size) { - materialtype_t *mt; - int j; - - if (op->materialname == NULL) - return; - - if (change->materialname != NULL && strcmp (op->materialname, change->materialname)) - return; - - if (!op->is_armor ()) - return; - - mt = name_to_material (op->materialname); - if (!mt) - { - LOG (llevError, "archetype '%s>%s' uses nonexistent material '%s'\n", &op->arch->name, &op->name, &op->materialname); - return; - } + unsigned long *p = (unsigned long *) (g_slice_alloc)(size + sizeof (unsigned long)); + *p++ = size ^ MAGIC; + //fprintf (stderr, "g_slice_alloc %ld %p\n", size, p);//D + return (void *)p; +} - for (j = 0; j < NROFATTACKS; j++) - if (op->resist[j] == 0 && change->resist[j] != 0) - { - op->resist[j] += mt->mod[j]; - if (op->resist[j] > 100) - op->resist[j] = 100; - if (op->resist[j] < -100) - op->resist[j] = -100; - } +void * +g_slice_alloc0 (unsigned long size) +{ + return memset (g_slice_alloc (size), 0, size); } -/* set the materialname and type for an item */ void -set_materialname (object *op, int difficulty, materialtype_t *nmt) +g_slice_free1 (unsigned long size, void *ptr) { - materialtype_t *mt, *lmt; - -#ifdef NEW_MATERIAL_CODE - int j; -#endif - - if (op->materialname != NULL) - return; - - - - if (nmt == NULL) + //fprintf (stderr, "g_slice_free %ld %p\n", size, ptr);//D + if (expect_true (ptr)) { - lmt = NULL; -#ifndef NEW_MATERIAL_CODE - for (mt = materialt; mt != NULL && mt->next != NULL; mt = mt->next) - { - if (op->material & mt->material) - { - lmt = mt; - break; - } - } + unsigned long *p = (unsigned long *)ptr; + unsigned long s = *--p ^ MAGIC; -#else - for (mt = materialt; mt != NULL && mt->next != NULL; mt = mt->next) + if (size != (unsigned long)(*p ^ MAGIC)) { - if (op->material & mt->material && rndm (1, 100) <= mt->chance && - difficulty >= mt->difficulty && (op->magic >= mt->magic || mt->magic == 0)) - { - lmt = mt; - if (!(op->is_weapon () || op->is_armor ())) - break; - } + LOG (logBacktrace | llevError, "slice free size (%lx) doesn't match alloc size (%lx)\n", size, s); + abort (); } -#endif - } - else - { - lmt = nmt; - } - if (lmt != NULL) - { -#ifndef NEW_MATERIAL_CODE - op->materialname = lmt->name; - return; -#else + *p = MAGIC; - if (op->stats.dam && op->is_weapon ()) - { - op->stats.dam += lmt->damage; - if (op->stats.dam < 1) - op->stats.dam = 1; - } - if (op->stats.sp && op->type == BOW) - op->stats.sp += lmt->sp; - if (op->stats.wc && op->is_weapon ()) - op->stats.wc += lmt->wc; - if (op->is_armor ()) - { - if (op->stats.ac) - op->stats.ac += lmt->ac; - for (j = 0; j < NROFATTACKS; j++) - if (op->resist[j] != 0) - { - op->resist[j] += lmt->mod[j]; - if (op->resist[j] > 100) - op->resist[j] = 100; - if (op->resist[j] < -100) - op->resist[j] = -100; - } - } - op->materialname = add_string (lmt->name); - /* dont make it unstackable if it doesn't need to be */ - if (op->is_weapon () || op->is_armor ()) - { - op->weight = (op->weight * lmt->weight) / 100; - op->value = (op->value * lmt->value) / 100; - } -#endif + (g_slice_free1)(s + sizeof (unsigned long), p); } } -/* - * Strip out the media tags from a String. - * Warning the input string will contain the result string - */ -void -strip_media_tag (char *message) -{ - int in_tag = 0; - char *dest; - char *src; +#endif - src = dest = message; - while (*src != '\0') - { - if (*src == '[') - { - in_tag = 1; - } - else if (in_tag && (*src == ']')) - in_tag = 0; - else if (!in_tag) - { - *dest = *src; - dest++; - } - src++; - } - *dest = '\0'; -} +/******************************************************************************/ -const char * -strrstr (const char *haystack, const char *needle) +refcnt_buf::refcnt_buf (size_t size) { - const char *lastneedle; + static uint32_t empty_buf [2] = { 0, 1 }; // 2 == never deallocated + data = (char *)empty_buf + overhead; + assert (overhead == sizeof (empty_buf)); + inc (); +} - lastneedle = NULL; - while ((haystack = strstr (haystack, needle)) != NULL) - { - lastneedle = haystack; - haystack++; - } - return lastneedle; +refcnt_buf::refcnt_buf (void *data, size_t size) +{ + _alloc (size); + memcpy (this->data, data, size); +} +refcnt_buf::~refcnt_buf () +{ + dec (); } -#define EOL_SIZE (sizeof("\n")-1) void -strip_endline (char *buf) +refcnt_buf::_dealloc () { - if (strlen (buf) < sizeof ("\n")) - { - return; - } - if (!strcmp (buf + strlen (buf) - EOL_SIZE, "\n")) - buf[strlen (buf) - EOL_SIZE] = '\0'; + sfree (data - overhead, size () + overhead); } -/** - * Replace in string src all occurrences of key by replacement. The resulting - * string is put into result; at most resultsize characters (including the - * terminating null character) will be written to result. - */ -void -replace (const char *src, const char *key, const char *replacement, char *result, size_t resultsize) +refcnt_buf & +refcnt_buf::operator =(const refcnt_buf &src) { - size_t resultlen; - size_t keylen; + dec (); + data = src.data; + inc (); + return *this; +} - /* special case to prevent infinite loop if key==replacement=="" */ - if (strcmp (key, replacement) == 0) - { - snprintf (result, resultsize, "%s", src); - return; - } +/******************************************************************************/ - keylen = strlen (key); +int +assign (char *dst, const char *src, int maxsize) +{ + if (!src) + src = ""; + + int len = strlen (src); - resultlen = 0; - while (*src != '\0' && resultlen + 1 < resultsize) + if (len >= maxsize) { - if (strncmp (src, key, keylen) == 0) + if (maxsize <= 4) { - snprintf (result + resultlen, resultsize - resultlen, "%s", replacement); - resultlen += strlen (result + resultlen); - src += keylen; + memset (dst, '.', maxsize - 2); + dst [maxsize - 1] = 0; } else { - result[resultlen++] = *src++; + memcpy (dst, src, maxsize - 4); + memcpy (dst + maxsize - 4, "...", 4); } - } - result[resultlen] = '\0'; -} - -/** - * Taking a string as an argument, mutate it into a string that looks like a list. - * a 'list' for the purposes here, is a string of items, seperated by commas, except - * for the last entry, which has an 'and' before it, and a full stop (period) after it. - * This function will also strip all trailing non alphanumeric characters. - * It does not insert an oxford comma. - */ - -void -make_list_like (char *input) -{ - char *p, tmp[MAX_BUF]; - int i; - - if (!input || strlen (input) > MAX_BUF - 5) - return; - /* bad stuff would happen if we continued here, the -5 is to make space for ' and ' */ - - strncpy (tmp, input, MAX_BUF - 5); - /*trim all trailing commas, spaces etc. */ - for (i = strlen (tmp); !isalnum (tmp[i]) && i >= 0; i--) - tmp[i] = '\0'; - strcat (tmp, "."); - - p = strrchr (tmp, ','); - if (p) - { - *p = '\0'; - strcpy (input, tmp); - p++; - strcat (input, " and"); - strcat (input, p); + len = maxsize; } else - strcpy (input, tmp); - - return; -} - -///////////////////////////////////////////////////////////////////////////// + memcpy (dst, src, ++len); -void -fork_abort (const char *msg) -{ - if (!fork ()) - { - signal (SIGABRT, SIG_DFL); - abort (); - } - - LOG (llevError, "fork abort: %s\n", msg); + return len; } -void *salloc_ (int n) throw (std::bad_alloc) +char * +vformat (const char *format, va_list ap) { - void *ptr = g_slice_alloc (n); + static dynbuf_text bufs[8]; + static int bufidx; - if (!ptr) - throw std::bad_alloc (); + dynbuf_text &buf = bufs [++bufidx & 7]; - return ptr; + buf.clear (); + buf.vprintf (format, ap); + return buf; } -void *salloc_ (int n, void *src) throw (std::bad_alloc) +char * +format (const char *format, ...) { - void *ptr = salloc_ (n); + va_list ap; + va_start (ap, format); + char *buf = vformat (format, ap); + va_end (ap); - if (src) - memcpy (ptr, src, n); - else - memset (ptr, 0, n); - - return ptr; + return buf; } -void assign (char *dst, const char *src, int maxlen) -{ - if (!src) - src = ""; - - int len = strlen (src); - - if (len >= maxlen - 1) - { - if (maxlen <= 4) - { - memset (dst, '.', maxlen - 1); - dst [maxlen - 1] = 0; - } - else - { - memcpy (dst, src, maxlen - 4); - memcpy (dst + maxlen - 4, "...", 4); - } - } - else - memcpy (dst, src, len + 1); -} - -tstamp now () +tstamp +now () { struct timeval tv; @@ -627,3 +310,84 @@ return diff <= 1 || diff >= 7; } +/* crc32 0xdebb20e3 table and supplementary functions. */ +extern const uint32_t crc_32_tab[256] = +{ + 0x00000000UL, 0x77073096UL, 0xee0e612cUL, 0x990951baUL, 0x076dc419UL, + 0x706af48fUL, 0xe963a535UL, 0x9e6495a3UL, 0x0edb8832UL, 0x79dcb8a4UL, + 0xe0d5e91eUL, 0x97d2d988UL, 0x09b64c2bUL, 0x7eb17cbdUL, 0xe7b82d07UL, + 0x90bf1d91UL, 0x1db71064UL, 0x6ab020f2UL, 0xf3b97148UL, 0x84be41deUL, + 0x1adad47dUL, 0x6ddde4ebUL, 0xf4d4b551UL, 0x83d385c7UL, 0x136c9856UL, + 0x646ba8c0UL, 0xfd62f97aUL, 0x8a65c9ecUL, 0x14015c4fUL, 0x63066cd9UL, + 0xfa0f3d63UL, 0x8d080df5UL, 0x3b6e20c8UL, 0x4c69105eUL, 0xd56041e4UL, + 0xa2677172UL, 0x3c03e4d1UL, 0x4b04d447UL, 0xd20d85fdUL, 0xa50ab56bUL, + 0x35b5a8faUL, 0x42b2986cUL, 0xdbbbc9d6UL, 0xacbcf940UL, 0x32d86ce3UL, + 0x45df5c75UL, 0xdcd60dcfUL, 0xabd13d59UL, 0x26d930acUL, 0x51de003aUL, + 0xc8d75180UL, 0xbfd06116UL, 0x21b4f4b5UL, 0x56b3c423UL, 0xcfba9599UL, + 0xb8bda50fUL, 0x2802b89eUL, 0x5f058808UL, 0xc60cd9b2UL, 0xb10be924UL, + 0x2f6f7c87UL, 0x58684c11UL, 0xc1611dabUL, 0xb6662d3dUL, 0x76dc4190UL, + 0x01db7106UL, 0x98d220bcUL, 0xefd5102aUL, 0x71b18589UL, 0x06b6b51fUL, + 0x9fbfe4a5UL, 0xe8b8d433UL, 0x7807c9a2UL, 0x0f00f934UL, 0x9609a88eUL, + 0xe10e9818UL, 0x7f6a0dbbUL, 0x086d3d2dUL, 0x91646c97UL, 0xe6635c01UL, + 0x6b6b51f4UL, 0x1c6c6162UL, 0x856530d8UL, 0xf262004eUL, 0x6c0695edUL, + 0x1b01a57bUL, 0x8208f4c1UL, 0xf50fc457UL, 0x65b0d9c6UL, 0x12b7e950UL, + 0x8bbeb8eaUL, 0xfcb9887cUL, 0x62dd1ddfUL, 0x15da2d49UL, 0x8cd37cf3UL, + 0xfbd44c65UL, 0x4db26158UL, 0x3ab551ceUL, 0xa3bc0074UL, 0xd4bb30e2UL, + 0x4adfa541UL, 0x3dd895d7UL, 0xa4d1c46dUL, 0xd3d6f4fbUL, 0x4369e96aUL, + 0x346ed9fcUL, 0xad678846UL, 0xda60b8d0UL, 0x44042d73UL, 0x33031de5UL, + 0xaa0a4c5fUL, 0xdd0d7cc9UL, 0x5005713cUL, 0x270241aaUL, 0xbe0b1010UL, + 0xc90c2086UL, 0x5768b525UL, 0x206f85b3UL, 0xb966d409UL, 0xce61e49fUL, + 0x5edef90eUL, 0x29d9c998UL, 0xb0d09822UL, 0xc7d7a8b4UL, 0x59b33d17UL, + 0x2eb40d81UL, 0xb7bd5c3bUL, 0xc0ba6cadUL, 0xedb88320UL, 0x9abfb3b6UL, + 0x03b6e20cUL, 0x74b1d29aUL, 0xead54739UL, 0x9dd277afUL, 0x04db2615UL, + 0x73dc1683UL, 0xe3630b12UL, 0x94643b84UL, 0x0d6d6a3eUL, 0x7a6a5aa8UL, + 0xe40ecf0bUL, 0x9309ff9dUL, 0x0a00ae27UL, 0x7d079eb1UL, 0xf00f9344UL, + 0x8708a3d2UL, 0x1e01f268UL, 0x6906c2feUL, 0xf762575dUL, 0x806567cbUL, + 0x196c3671UL, 0x6e6b06e7UL, 0xfed41b76UL, 0x89d32be0UL, 0x10da7a5aUL, + 0x67dd4accUL, 0xf9b9df6fUL, 0x8ebeeff9UL, 0x17b7be43UL, 0x60b08ed5UL, + 0xd6d6a3e8UL, 0xa1d1937eUL, 0x38d8c2c4UL, 0x4fdff252UL, 0xd1bb67f1UL, + 0xa6bc5767UL, 0x3fb506ddUL, 0x48b2364bUL, 0xd80d2bdaUL, 0xaf0a1b4cUL, + 0x36034af6UL, 0x41047a60UL, 0xdf60efc3UL, 0xa867df55UL, 0x316e8eefUL, + 0x4669be79UL, 0xcb61b38cUL, 0xbc66831aUL, 0x256fd2a0UL, 0x5268e236UL, + 0xcc0c7795UL, 0xbb0b4703UL, 0x220216b9UL, 0x5505262fUL, 0xc5ba3bbeUL, + 0xb2bd0b28UL, 0x2bb45a92UL, 0x5cb36a04UL, 0xc2d7ffa7UL, 0xb5d0cf31UL, + 0x2cd99e8bUL, 0x5bdeae1dUL, 0x9b64c2b0UL, 0xec63f226UL, 0x756aa39cUL, + 0x026d930aUL, 0x9c0906a9UL, 0xeb0e363fUL, 0x72076785UL, 0x05005713UL, + 0x95bf4a82UL, 0xe2b87a14UL, 0x7bb12baeUL, 0x0cb61b38UL, 0x92d28e9bUL, + 0xe5d5be0dUL, 0x7cdcefb7UL, 0x0bdbdf21UL, 0x86d3d2d4UL, 0xf1d4e242UL, + 0x68ddb3f8UL, 0x1fda836eUL, 0x81be16cdUL, 0xf6b9265bUL, 0x6fb077e1UL, + 0x18b74777UL, 0x88085ae6UL, 0xff0f6a70UL, 0x66063bcaUL, 0x11010b5cUL, + 0x8f659effUL, 0xf862ae69UL, 0x616bffd3UL, 0x166ccf45UL, 0xa00ae278UL, + 0xd70dd2eeUL, 0x4e048354UL, 0x3903b3c2UL, 0xa7672661UL, 0xd06016f7UL, + 0x4969474dUL, 0x3e6e77dbUL, 0xaed16a4aUL, 0xd9d65adcUL, 0x40df0b66UL, + 0x37d83bf0UL, 0xa9bcae53UL, 0xdebb9ec5UL, 0x47b2cf7fUL, 0x30b5ffe9UL, + 0xbdbdf21cUL, 0xcabac28aUL, 0x53b39330UL, 0x24b4a3a6UL, 0xbad03605UL, + 0xcdd70693UL, 0x54de5729UL, 0x23d967bfUL, 0xb3667a2eUL, 0xc4614ab8UL, + 0x5d681b02UL, 0x2a6f2b94UL, 0xb40bbe37UL, 0xc30c8ea1UL, 0x5a05df1bUL, + 0x2d02ef8dL +}; + +void +thread::start (void *(*start_routine)(void *), void *arg) +{ + pthread_attr_t attr; + + pthread_attr_init (&attr); + pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED); + pthread_attr_setstacksize (&attr, PTHREAD_STACK_MIN < sizeof (long) * 4096 + ? sizeof (long) * 4096 : PTHREAD_STACK_MIN); +#ifdef PTHREAD_SCOPE_PROCESS + pthread_attr_setscope (&attr, PTHREAD_SCOPE_PROCESS); +#endif + + sigset_t fullsigset, oldsigset; + sigfillset (&fullsigset); + + pthread_sigmask (SIG_SETMASK, &fullsigset, &oldsigset); + + if (pthread_create (&id, &attr, start_routine, arg)) + cleanup ("unable to create a new thread"); + + pthread_sigmask (SIG_SETMASK, &oldsigset, 0); +} +