Exemple #1
0
static int find_hash(int fd, const char *hash, char *game_name, size_t max_len)
{
	char token[MAX_TOKEN_LEN] = {0};
	while (1) {
		if (find_token(fd, "game") < 0) {
			return -1;
		}

		if (find_token(fd, "name") < 0) {
			return -1;
		}

		if (get_token(fd, game_name, max_len) < 0) {
			return -1;
		}

		if (find_token(fd, "sha1") < 0) {
			return -1;
		}

		if (get_token(fd, token, MAX_TOKEN_LEN) < 0) {
			return -1;
		}

		if (strcasecmp(hash, token) == 0) {
			return 0;
		}
	}
}
Exemple #2
0
void *cvar_alloc_handle(const char *cvar_parameters,
		void *(*cvar_malloc)(size_t size), void (*cvar_free)(void *cvar_ptr))
{
	cvar_token_t *list_head;;
	cvar_token_t *t;
	handle_t handle;
	handle_t *state = NULL;
	int ret = 0;

	cvar_trace("entry");

	/* Tokenize parameters supplied by filebench. */
	list_head = NULL;
	ret = tokenize(cvar_parameters, DEFAULT_PARAMETER_DELIMITER,
			DEFAULT_KEY_VALUE_DELIMITER, &list_head);
	if (ret)
		goto out;

	/* Get the value of mean and sigma. */
	t = find_token(list_head, RN_MEAN);
	if (t && t->value) {
		t->used = 1;
		handle.mean = atof(t->value);
	} else
		handle.mean = RN_MEAN_DEFAULT;

	t = find_token(list_head, RN_SIGMA);
	if (t && t->value) {
		t->used = 1;
		handle.sigma = atof(t->value);
	} else
		handle.sigma = RN_SIGMA_DEFAULT;

	cvar_trace("mean = %lf, sigma = %lf", handle.mean, handle.sigma);

	t = unused_tokens(list_head);
	if (t) {
		cvar_log_error("Unsupported parameter %s", t->key);
		goto out;
	}

	/* Seed the state. */
	mts_goodseed(&handle.state);

	/* All set. Now allocate space for the handle in the shared segment and
	 * copy the state over. */
	state = (handle_t *) cvar_malloc(sizeof(handle_t));
	if (!state) {
		cvar_log_error("Out of memory");
		goto out;
	}

	*state = handle;

out:
	free_tokens(list_head);

	cvar_trace("exit");
	return state;
}
static int nilfs_read_debug_option(char *page, char **start, off_t off,
				   int count, int *eof, void *data)
{
	int len = 0;
	int flag;

	spin_lock(&debug_info_lock);

	for (flag = 0; flag < NILFS_VERBOSE_LIMIT; flag++) {
		const char *vopt, *p;
		int level = min(MAX_VLEVEL,
				(int)nilfs_debug_info.verbose[flag]);

		if (level >= 0) {
			vopt = find_token(Opt_quiet + level, opt_tokens);
			BUG_ON(vopt == NULL);

			p = find_token(flag, class_tokens);
			if (!p)
				break;

			if (len > 0)
				page[len++] = ' ';
			len += sprintf(page + len, "-%s %s", vopt, p);
		}
	}

	spin_unlock(&debug_info_lock);
	page[len++] = '\n';

	return proc_calc_metrics(page, start, off, count, eof, len);
}
Exemple #4
0
/* read argument string of a single assignment */
char* get_arg( FILE *file, char *name, int type )
{
    char token[MAX_TOKEN_LENGTH];
    char *arg = 0;

    /* search entry_name */
    if ( !find_token( file, name, type, WARNING ) ) return 0;

    /* token was found so read it */
    read_token( file, token );
    /* next token must be an equation */
    read_token( file, token );
    if ( token[0] != '=' ) {
        fprintf( stderr,
                 "get_arg: line %i: '=' expected after token '%s' but found '%s' instead\n", get_line_number( file ), name, token );
        return 0;
    }
    /* get argument */
    read_token( file, token );
    if ( token[0] == 0 )
        fprintf( stderr, "get_arg: line %i: warning: argument for '%s' is empty\n", get_line_number( file ), name );
    arg = strdup( token );
#ifdef FILE_DEBUG
    printf( "get_arg: %s = %s\n", name, arg );
#endif
    return arg;
}
Exemple #5
0
static char *
read_token(struct state_machine *sm)
{
    char *line;
    char *token;

    for (;;) {
        printf("Enter a token (or null to advance to next state): ");
        fflush(stdout);

        line = read_line();

        if (strcmp(line, "") == 0)
            break;

        token = find_token(line, sm->tokens);

        if (token != NULL)
            return token;

        printf("Invalid token entered.\n");
    }

    return NULL;
}
Exemple #6
0
static const char *xfind_token(const char *const string_array[], const char *key)
{
	const char *r = find_token(string_array, key, NULL);
	if (r)
		return r;
	bb_error_msg_and_die("header: %s", key);
}
Exemple #7
0
int find_first_data_track(const char *cue_path,
      int32_t *offset, char *track_path, size_t max_len)
{
   int rv, m, s, f;
   char tmp_token[MAX_TOKEN_LEN];
   char cue_dir[PATH_MAX_LENGTH];
   RFILE *fd;

   strlcpy(cue_dir, cue_path, PATH_MAX_LENGTH);
   path_basedir(cue_dir);

   fd = retro_fopen(cue_path, RFILE_MODE_READ, -1);
   if (!fd)
   {
      RARCH_LOG("Could not open CUE file '%s': %s\n", cue_path,
            strerror(errno));
      return -errno;
   }

   RARCH_LOG("Parsing CUE file '%s'...\n", cue_path);

   while (get_token(fd, tmp_token, MAX_TOKEN_LEN) > 0)
   {
      if (strcmp(tmp_token, "FILE") == 0)
      {
         get_token(fd, tmp_token, MAX_TOKEN_LEN);
         fill_pathname_join(track_path, cue_dir, tmp_token, max_len);

      }
      else if (strcasecmp(tmp_token, "TRACK") == 0)
      {
         get_token(fd, tmp_token, MAX_TOKEN_LEN);
         get_token(fd, tmp_token, MAX_TOKEN_LEN);
         if (strcasecmp(tmp_token, "AUDIO") == 0)
            continue;

         find_token(fd, "INDEX");
         get_token(fd, tmp_token, MAX_TOKEN_LEN);
         get_token(fd, tmp_token, MAX_TOKEN_LEN);
         if (sscanf(tmp_token, "%02d:%02d:%02d", &m, &s, &f) < 3)
         {
            RARCH_LOG("Error parsing time stamp '%s'\n", tmp_token);
            return -errno;
         }
         *offset = ((m * 60) * (s * 75) * f) * 25;

         RARCH_LOG("Found 1st data track on file '%s+%d'\n",
               track_path, *offset);

         rv = 0;
         goto clean;
      }
   }

   rv = -EINVAL;

clean:
   retro_fclose(fd);
   return rv;
}
Exemple #8
0
static void		prepare_input(const char *usr_input, char *buf)
{
	size_t		i;
	size_t		j;
	size_t		k;
	int			tmp;

	i = 0;
	j = 0;
	while (i < MAX_INPUT_SIZE && j < MAX_INPUT_SIZE && usr_input[i] != '\0')
	{
		k = 0;
		if ((tmp = find_token(usr_input + i)) != -1)
		{
			if (i > 0 && usr_input[i - 1] != ' ')
				buf[j++] = ' ';
			while (j < MAX_INPUT_SIZE && k < g_tok[tmp].size)
				buf[j++] = g_tok[tmp].id[k++];
			i += g_tok[tmp].size;
			if (j < MAX_INPUT_SIZE && usr_input[i] != ' ')
				buf[j++] = ' ';
		}
		else
			buf[j++] = usr_input[i++];
	}
}
Exemple #9
0
void prepare_nonterminals()
{
	int i,j,g;
	char token[16];
	char production[256];
	nonterminal_n=0;
	for(i=0;i<production_n;i++)
	{
		g=find_nonterminal(productions[i].name);
		if(g==-1)
		{
			strcpy(nonterminals[nonterminal_n],productions[i].name);
			g=nonterminal_n++;
		}
		productions[i].nonterminal=g;
	}
	for(i=0;i<production_n;i++)
	{
		productions[i].size=0;
		strcpy(production,productions[i].production);
		for(char *p=strtok(production," ");p;p=strtok(NULL," "))
		{
			if(p[0]=='@')
			{
				for(j=0;*++p!='@' && *p!='\0' && j<15;j++)token[j]=*p;
				if(*p!='@')
				{
					printf("Production #%d Is Wrong - Format error\n",i);
					printf("Syntax analyzer construct failed.\n");
					return;
				}
				token[j]='\0';
				g=find_token(token);
				if(g==-1)
				{
					printf("Production #%d Is Wrong - Token name %s not found.\n",i,token);
					printf("Syntax analyzer construct failed.\n");
					return;
				}
				productions[i].elements[productions[i].size].type=1;
				productions[i].elements[productions[i].size].key=g;
			}
			else
			{
				g=find_nonterminal(p);
				if(g==-1)
				{
					printf("Production #%d Is Wrong - Nonterminal name %s not found.\n",i,p);
					printf("Syntax analyzer construct failed.\n");
					return;
				}
				productions[i].elements[productions[i].size].type=0;
				productions[i].elements[productions[i].size].key=g;
			}
			productions[i].size++;
		}
	}
}
Exemple #10
0
static int get_run_info(struct RunInfo* info, char* game_name) {
    int fd = open("./launch.conf", O_RDONLY);
    int rv;
    char token[MAX_TOKEN_LEN];
    if (fd < 0) {
        return -errno;
    }

    memset(info, 0, sizeof(struct RunInfo));

    while (1) {
        if ((rv = get_token(fd, token, MAX_TOKEN_LEN)) < 0) {
            goto clean;
        }

        if (fnmatch(token, game_name, 0) != 0) {
            if ((rv = find_token(fd, ";")) < 0) {
                goto clean;
            }
            continue;
        }

        LOG_DEBUG("Matched rule '%s'", token);

        if ((rv = get_token(fd, token, MAX_TOKEN_LEN)) < 0) {
            goto clean;
        }

        break;
    }

    strncpy(info->core, token, 50);
    info->multitap = 0;
    info->dualanalog = 0;

    if ((rv = get_token(fd, token, MAX_TOKEN_LEN)) < 0) {
        goto clean;
    }

    while (strcmp(token, ";") != 0) {
        if (strcmp(token, "multitap") == 0) {
            info->multitap = 1;
        } else if (strcmp(token, "dualanalog") == 0) {
            info->dualanalog = 1;
        }

        if ((rv = get_token(fd, token, MAX_TOKEN_LEN)) < 0) {
            goto clean;
        }

    }
    rv = 0;
clean:
    close(fd);
    return rv;
}
Exemple #11
0
void first_string(char *s,First *target)
{
	memset(target,0,sizeof(*target));
	char production[256];
	strcpy(production,s);
	Split split(production);
	char *p;
	while(p=split.next())
	{
		if(p[0]=='@')
		{
			int j;
			char token[16];
			for(j=0;*++p!='@' && *p!='\0' && j<15;j++)token[j]=*p;
			if(*p!='@')
			{
				ConstructException ex;
				sprintf(ex.message,"Production \"%s\" Wrong - Format error.",s);
				throw ex;
			}
			token[j]='\0';
			int t=find_token(token);
			if(t==-1)
			{
				ConstructException ex;
				sprintf(ex.message,"Production \"%s\" Is Wrong - Token name %s not found.",s,token);
				throw ex;
			}
			set(target->terminals,t);
			break;
		}
		else
		{
			bool canempty=false,found=false;
			for(int i=0;i<production_n;i++)
			{
				if(strcmp(productions[i].name,p)==0)
				{
					found=true;
					first_dfs(i);
					orfrom(target->terminals,first[i].terminals,token_n);
					if(first[i].empty)canempty=true;
				}
			}
			if(!found)
			{
				ConstructException ex;
				sprintf(ex.message,"Nonterminal %s not found.",p);
				throw ex;
			}
			if(!canempty)break;
		}
	}
	target->empty|=(p==NULL);
}
Exemple #12
0
fs::path Path::MakeAbsolute(fs::path path, std::string const& token) const {
	if (path.empty()) return path;
	int idx = find_token(token.c_str(), token.size());
	if (idx == -1) throw agi::InternalError("Bad token: " + token);

	path.make_preferred();
	const auto str = path.string();
	if (boost::starts_with(str, "?dummy") || boost::starts_with(str, "dummy-audio:"))
		return path;
	return (paths[idx].empty() || path.is_absolute()) ? path : paths[idx]/path;
}
Exemple #13
0
static int 
tokenize(varnam *handle, 
         const char *input, 
         struct strbuf *string)
{
    const char *text,  *remaining;
    int matchpos = 0, counter = 0;
    struct varnam_internal *vi;       
    struct strbuf *lookup;
    struct token *temp = NULL, *last = NULL;

    vi = handle->internal;
    lookup = vi->lookup;

    text = input;
    while( *text != '\0' ) 
    {
        strbuf_addc( lookup, *text );
        ++counter;

        temp = find_token( handle, lookup->buffer );
        if (temp) {
            last = temp;
            matchpos = counter;
            if( last->children <= 0 ) break;
        }
        else if( !can_find_token( handle, last, lookup->buffer )) { 
            break;
        }
        ++text;
    }

    if (last) 
    {
        resolve_token(handle, last, string);
        remaining = input + matchpos;
        set_last_token (handle, last);
    }
    else {
        if(lookup->buffer[0] != '_')
            strbuf_addc( string, lookup->buffer[0] );
        remaining = input + 1;
        set_last_token (handle, NULL);
    }

    strbuf_clear (lookup);
    if( strlen( remaining ) > 0 )
        return tokenize( handle, remaining, string );

    return VARNAM_SUCCESS;
}
Exemple #14
0
static int read_launch_conf(struct RunInfo *info, const char *game_name)
{
	int fd = open("./launch.conf", O_RDONLY);
	int rv;
	int bci = 0;
	char token[MAX_TOKEN_LEN];
	if (fd < 0) {
		return -errno;
	}

	while (1) {
		if ((rv = get_token(fd, token, MAX_TOKEN_LEN)) < 0) {
			goto clean;
		}

		if (rl_fnmatch(token, game_name, 0) != 0) {
			if ((rv = find_token(fd, ";")) < 0) {
				goto clean;
			}
			continue;
		}

		LOG_DEBUG("Matched rule '%s'", token);
		break;
	}

	if ((rv = get_token(fd, token, MAX_TOKEN_LEN)) < 0) {
		goto clean;
	}

	while (strcmp(token, ";") != 0) {
		if (strcmp(token, "multitap") == 0) {
			info->multitap = 1;
		} else if (strcmp(token, "dualanalog") == 0) {
			info->dualanalog = 1;
		} else if (token[0] == '!') {
			strncpy(&info->broken_cores[bci], &token[1], PATH_MAX - bci);
			bci += strnlen(&token[1], PATH_MAX) + 1;
		}

		if ((rv = get_token(fd, token, MAX_TOKEN_LEN)) < 0) {
			goto clean;
		}

	}
	rv = 0;
 clean:
	close(fd);
	return rv;
}
Exemple #15
0
void Path::SetToken(const char *token_name, fs::path const& token_value) {
	int idx = find_token(token_name, strlen(token_name));
	if (idx == -1) throw agi::InternalError("Bad token: " + std::string(token_name));

	if (token_value.empty())
		paths[idx] = token_value;
	else if (!token_value.is_absolute())
		paths[idx].clear();
	else {
		paths[idx] = token_value;
		paths[idx].make_preferred();
		if (fs::FileExists(paths[idx]))
			paths[idx] = paths[idx].parent_path();
	}
}
Exemple #16
0
CliNode *cliParserFindCmd_internal(CliMode mode, CliNode *current, const char *str) {
	ASSERT(str != NULL);
	ASSERT(current != NULL);

	*op.word_multimatch = '\0';
	rcpDebug("parser: reset multimatch\n");
	
	// extract the word and set the new value of the string
	const char *ptr = str;
	while (*ptr == ' ')
		ptr++;
	int len = get_word_len(ptr);
	if (len == 0)
		return 0; // all fine, we reached the end of the command
	memcpy(op.word, ptr, len);
	op.word[len] = '\0';

	// walk trough the next list and see if the word is already there
	CliNode *found = find_token(mode, current, op.word);
	if (found == NULL)
		return NULL;
	op.last_node_match = found;
	op.depth++;

	// the node was found, check if this was the last token
	ptr += len;
	while (*ptr == ' ')
		ptr++;
	if (*ptr == '\0')
		return found; // we are at the end of the token list
	
	// test next token
	if (found->rule == NULL)
		return NULL;
	return cliParserFindCmd_internal(mode, found->rule, ptr);
}
Exemple #17
0
static int select_core(char *core_path, size_t max_len,
		const struct RunInfo *info) {
	int fd = open("./cores.conf", O_RDONLY);
	int rv;
	int bci = 0;
	char token[MAX_TOKEN_LEN];
	int broken = 0;
	if (fd < 0) {
		return -errno;
	}

	LOG_INFO("Selecting core for system '%s'", info->system);
	while (1) {
		if ((rv = get_token(fd, token, MAX_TOKEN_LEN)) < 0) {
			goto clean;
		}

		if (rl_fnmatch(token, info->system, 0) != 0) {
			if ((rv = find_token(fd, ";")) < 0) {
				goto clean;
			}
			continue;
		}

		LOG_INFO("Matched system '%s'", token);

		break;
	}

	if ((rv = get_token(fd, token, MAX_TOKEN_LEN)) < 0) {
		goto clean;
	}

	while (strcmp(token, ";") != 0) {
		broken = 0;
		for (bci = 0; info->broken_cores[bci] != '\0';
				bci += strlen(&info->broken_cores[bci]) + 1) {

			LOG_DEBUG("%s, %s", &info->broken_cores[bci], token);
			if (strcmp(&info->broken_cores[bci], token) == 0) {
				broken = 1;
				LOG_DEBUG("Not using core %s because it is "
						"marked broken for this game",
						&info->broken_cores[bci]);
				break;
			}
		}

		if (!broken) {
			goto success;
		}

		if ((rv = get_token(fd, token, MAX_TOKEN_LEN)) < 0) {
			goto clean;
		}

	}
	rv = -EINVAL;
	goto clean;

success:
	snprintf(core_path, max_len, "./cores/%s.so", token);
	rv = 0;
clean:
	close(fd);
	return rv;
}
Exemple #18
0
/*
 * Tokenize the current set of NULL-terminated words, allowing for
 * one token sublevel starting from the current token level.
 */
static int tokenize(t_tokenline *tl, int *words, int num_words,
		t_token **complete_tokens, int *complete_arg)
{
	t_token *token_stack[8], *arg_tokens;
	t_tokenline_parsed *p;
	float arg_float;
	uint32_t arg_uint, suffix_uint;
	int done, arg_needed, w, t, t_idx, size;
	int cur_tsp, cur_tp, cur_bufsize, i;
	char *word, *suffix;

	done = FALSE;
	p = &tl->parsed;
	token_stack[0] = tl->token_levels[tl->token_level];
	cur_tsp = 0;
	cur_tp = 0;
	cur_bufsize = 0;
	arg_needed = 0;
	arg_tokens = NULL;
	for (w = 0; w < num_words; w++) {
		word = tl->buf + words[w];
		if (done) {
			if (!complete_tokens)
				tl->print(tl->user, "Too many arguments."NL);
			return FALSE;
		} else if (!arg_needed) {
			/* Token needed. */
			if ((suffix = strchr(word, TL_TOKEN_DELIMITER))) {
				*suffix++ = 0;
				if (!str_to_uint(suffix, &suffix_uint)) {
					tl->print(tl->user, "Invalid number."NL);
					return FALSE;
				}
			} else {
				suffix_uint = 0;
			}

			if ((t_idx = find_token(token_stack[cur_tsp], tl->token_dict, word)) > -1) {
				t = token_stack[cur_tsp][t_idx].token;
				p->tokens[cur_tp++] = t;
				if (t == T_ARG_UINT) {
					/* Integer token. */
					str_to_uint(word, &arg_uint);
					p->tokens[cur_tp++] = cur_bufsize;
					memcpy(p->buf + cur_bufsize, &arg_uint, sizeof(uint32_t));
					cur_bufsize += sizeof(uint32_t);
				}
				if (suffix) {
					if (!(token_stack[cur_tsp][t_idx].flags &
							T_FLAG_SUFFIX_TOKEN_DELIM_INT)) {
						if (!complete_tokens)
							tl->print(tl->user, "Token suffix not allowed."NL);
						return FALSE;
					}
					if (suffix_uint > 1) {
						p->tokens[cur_tp++] = T_ARG_TOKEN_SUFFIX_INT;
						p->tokens[cur_tp++] = cur_bufsize;
						memcpy(p->buf + cur_bufsize, &suffix_uint, sizeof(uint32_t));
						cur_bufsize += sizeof(uint32_t);
					}
				}
				p->last_token_entry = &token_stack[cur_tsp][t_idx];

				if (token_stack[cur_tsp][t_idx].arg_type == T_ARG_HELP) {
					/* Nothing to do, just keep cur_tsp from increasing. */
				} else if (token_stack[cur_tsp][t_idx].arg_type) {
					/* Token needs an argument */
					arg_needed = token_stack[cur_tsp][t_idx].arg_type;
					if (arg_needed == T_ARG_TOKEN)
						/* Argument is one of these subtokens. */
						arg_tokens = token_stack[cur_tsp][t_idx].subtokens;
				} else if (token_stack[cur_tsp][t_idx].subtokens) {
					/* Switch to a new token set. */
					token_stack[cur_tsp + 1] = token_stack[cur_tsp][t_idx].subtokens;
					cur_tsp++;
				} else {
					/* Not expecting any more arguments or tokens. */
					done = tl->one_command_per_line;
				}
			} else {
				/*
				 * No matching token found, but maybe the token
				 * set allows freeform strings?
				 */
				for (i = 0; token_stack[cur_tsp][i].token; i++) {
					if (token_stack[cur_tsp][i].token == T_ARG_STRING)
						break;
				}
				if (token_stack[cur_tsp][i].token) {
					/* Add it in as a token. */
					p->tokens[cur_tp++] = T_ARG_STRING;
					p->tokens[cur_tp++] = cur_bufsize;
					size = strlen(word) + 1;
					memcpy(p->buf + cur_bufsize, word, size);
					cur_bufsize += size;
					p->buf[cur_bufsize] = 0;
				} else {
					if (!complete_tokens)
						tl->print(tl->user, "Invalid command."NL);
					return FALSE;
				}
			}
		} else {
			/* Parse word as the type in arg_needed */
			switch (arg_needed) {
			case T_ARG_UINT:
				str_to_uint(word, &arg_uint);
				if (*suffix) {
					switch(*suffix)
					{
					case 'k':
						arg_uint *= 1000;
						break;
					case 'm':
						arg_uint *= 1000000;
						break;
					case 'g':
						arg_uint *= 1000000000L;
						break;
					default:
						if (!complete_tokens)
							tl->print(tl->user, "Invalid value."NL);
						return FALSE;
					}
				}
				p->tokens[cur_tp++] = T_ARG_UINT;
				p->tokens[cur_tp++] = cur_bufsize;
				memcpy(p->buf + cur_bufsize, &arg_uint, sizeof(uint32_t));
				cur_bufsize += sizeof(uint32_t);
				break;
			case T_ARG_FLOAT:
				arg_float = strtof(word, &suffix);
				if (*suffix) {
					switch(*suffix)
					{
					case 'k':
						arg_float *= 1000;
						break;
					case 'm':
						arg_float *= 1000000;
						break;
					case 'g':
						arg_float *= 1000000000L;
						break;
					default:
						if (!complete_tokens)
							tl->print(tl->user, "Invalid value."NL);
						return FALSE;
					}
				}
				p->tokens[cur_tp++] = T_ARG_FLOAT;
				p->tokens[cur_tp++] = cur_bufsize;
				memcpy(p->buf + cur_bufsize, &arg_float, sizeof(float));
				cur_bufsize += sizeof(float);
				break;
			case T_ARG_STRING:
				p->tokens[cur_tp++] = T_ARG_STRING;
				p->tokens[cur_tp++] = cur_bufsize;
				size = strlen(word) + 1;
				memcpy(p->buf + cur_bufsize, word, size);
				cur_bufsize += size;
				p->buf[cur_bufsize] = 0;
				break;
			case T_ARG_TOKEN:
				if ((t_idx = find_token(arg_tokens, tl->token_dict, word)) > -1) {
					p->tokens[cur_tp++] = arg_tokens[t_idx].token;
					p->last_token_entry = &arg_tokens[t_idx];
				} else {
					if (!complete_tokens)
						tl->print(tl->user, "Invalid value."NL);
					return FALSE;
				}
				break;
			}
			arg_needed = 0;
			done = tl->one_command_per_line;
		}
	}
	if (arg_needed && !complete_tokens) {
		tl->print(tl->user, "Missing argument."NL);
		return FALSE;
	}

	p->tokens[cur_tp] = 0;

	if (complete_tokens) {
		if (done) {
			/* Nothing to add. */
			*complete_tokens = NULL;
		} else {
			/* Fill in the completion token list. */
			if (arg_needed == T_ARG_TOKEN)
				*complete_tokens = arg_tokens;
			else
				*complete_tokens = token_stack[cur_tsp];
		}
	}
	if (complete_arg)
		*complete_arg = arg_needed;

	return TRUE;
}
Exemple #19
0
int main(int argc, char **argv) {

	int offset=2,i;

	int linenum=0,lastline=0,link_offset;
	int link_value=0x801; /* start of applesoft program */
	int token;

	while(1) {
		/* get line from input file */
		line_ptr=fgets(input_line,BUFSIZ,stdin);
		line++;
		if (line_ptr==NULL) break;

		/* VMW extension: use leading ' as a comment char */
		if (line_ptr[0]=='\'') continue;

		/* skip empty lines */
		if (line_ptr[0]=='\n') continue;

		linenum=getnum();
		if ((linenum>65535) || (linenum<0)) {
			fprintf(stderr,"Invalid line number %d\n",linenum);
			exit(-1);
		}
		if (linenum<lastline) {
			fprintf(stderr,"Line counted backwards %d->%d\n",
				lastline,linenum);
			exit(-1);
		}
		lastline=linenum;

		link_offset=offset;
		check_oflo(offset+4);
		output[offset+2]=LOW(linenum);
		output[offset+3]=HIGH(linenum);
		offset+=4;

		while(1) {
			token=find_token();
			output[offset]=token;
			offset++;
			check_oflo(offset);
			if (!token) break;
		}

		/* remarks end at end of line */
		in_rem=0;

		/* 2 bytes is to ignore size from beginning of file */
		link_value=0x801+(offset-2);

		/* point link value to next line */
		check_oflo(offset+2);
		output[link_offset]=LOW(link_value);
		output[link_offset+1]=HIGH(link_value);
	}
	/* set last link field to $00 $00 which indicates EOF */
	check_oflo(offset+2);
	output[offset]='\0';
	output[offset+1]='\0';
	offset+=2;

	/* Set filesize */
	/* -1 to match observed values */
	output[0]=LOW(offset-1);
	output[1]=HIGH(offset-1);
	/* output our file */
	for(i=0;i<offset;i++) putchar(output[i]);

	return 0;
}
Exemple #20
0
static int parse(const char *boundary, char **argv)
{
	char *line, *s, *p;
	const char *type;
	int boundary_len = strlen(boundary);
	const char *delims = " ;\"\t\r\n";
	const char *uniq;
	int ntokens;
	const char *tokens[32]; // 32 is enough

	// prepare unique string pattern
	uniq = xasprintf("%%llu.%u.%s", (unsigned)getpid(), safe_gethostname());

//bb_info_msg("PARSE[%s]", terminator);

	while ((line = xmalloc_fgets_str(stdin, "\r\n\r\n")) != NULL) {

		// seek to start of MIME section
		// N.B. to avoid false positives let us seek to the _last_ occurance
		p = NULL;
		s = line;
		while ((s=strcasestr(s, "Content-Type:")) != NULL)
			p = s++;
		if (!p)
			goto next;
//bb_info_msg("L[%s]", p);

		// split to tokens
		// TODO: strip of comments which are of form: (comment-text)
		ntokens = 0;
		tokens[ntokens] = NULL;
		for (s = strtok(p, delims); s; s = strtok(NULL, delims)) {
			tokens[ntokens] = s;
			if (ntokens < ARRAY_SIZE(tokens) - 1)
				ntokens++;
//bb_info_msg("L[%d][%s]", ntokens, s);
		}
		tokens[ntokens] = NULL;
//bb_info_msg("N[%d]", ntokens);

		// analyse tokens
		type = find_token(tokens, "Content-Type:", "text/plain");
//bb_info_msg("T[%s]", type);
		if (0 == strncasecmp(type, "multipart/", 10)) {
			if (0 == strcasecmp(type+10, "mixed")) {
				parse(xfind_token(tokens, "boundary="), argv);
			} else
				bb_error_msg_and_die("no support of content type '%s'", type);
		} else {
			pid_t pid = pid;
			int rc;
			FILE *fp;
			// fetch charset
			const char *charset = find_token(tokens, "charset=", CONFIG_FEATURE_MIME_CHARSET);
			// fetch encoding
			const char *encoding = find_token(tokens, "Content-Transfer-Encoding:", "7bit");
			// compose target filename
			char *filename = (char *)find_token(tokens, "filename=", NULL);
			if (!filename)
				filename = xasprintf(uniq, monotonic_us());
			else
				filename = bb_get_last_path_component_strip(xstrdup(filename));

			// start external helper, if any
			if (opts & OPT_X) {
				int fd[2];
				xpipe(fd);
				pid = vfork();
				if (0 == pid) {
					// child reads from fd[0]
					xdup2(fd[0], STDIN_FILENO);
					close(fd[0]); close(fd[1]);
					xsetenv("CONTENT_TYPE", type);
					xsetenv("CHARSET", charset);
					xsetenv("ENCODING", encoding);
					xsetenv("FILENAME", filename);
					BB_EXECVP(*argv, argv);
					_exit(EXIT_FAILURE);
				}
				// parent dumps to fd[1]
				close(fd[0]);
				fp = fdopen(fd[1], "w");
				signal(SIGPIPE, SIG_IGN); // ignore EPIPE
			// or create a file for dump
			} else {
				char *fname = xasprintf("%s%s", *argv, filename);
				fp = xfopen_for_write(fname);
				free(fname);
			}

			// housekeeping
			free(filename);

			// dump to fp
			if (0 == strcasecmp(encoding, "base64")) {
				decode_base64(stdin, fp);
			} else if (0 != strcasecmp(encoding, "7bit")
				&& 0 != strcasecmp(encoding, "8bit")) {
				// quoted-printable, binary, user-defined are unsupported so far
				bb_error_msg_and_die("no support of encoding '%s'", encoding);
			} else {
				// N.B. we have written redundant \n. so truncate the file
				// The following weird 2-tacts reading technique is due to
				// we have to not write extra \n at the end of the file
				// In case of -x option we could truncate the resulting file as
				// fseek(fp, -1, SEEK_END);
				// if (ftruncate(fileno(fp), ftell(fp)))
				//	bb_perror_msg("ftruncate");
				// But in case of -X we have to be much more careful. There is
				// no means to truncate what we already have sent to the helper.
				p = xmalloc_fgets_str(stdin, "\r\n");
				while (p) {
					if ((s = xmalloc_fgets_str(stdin, "\r\n")) == NULL)
						break;
					if ('-' == s[0] && '-' == s[1]
						&& 0 == strncmp(s+2, boundary, boundary_len))
						break;
					fputs(p, fp);
					p = s;
				}

/*
				while ((s = xmalloc_fgetline_str(stdin, "\r\n")) != NULL) {
					if ('-' == s[0] && '-' == s[1]
						&& 0 == strncmp(s+2, boundary, boundary_len))
						break;
					fprintf(fp, "%s\n", s);
				}
				// N.B. we have written redundant \n. so truncate the file
				fseek(fp, -1, SEEK_END);
				if (ftruncate(fileno(fp), ftell(fp)))
					bb_perror_msg("ftruncate");
*/
			}
			fclose(fp);

			// finalize helper
			if (opts & OPT_X) {
				signal(SIGPIPE, SIG_DFL);
				// exit if helper exited >0
				rc = wait4pid(pid);
				if (rc)
					return rc+20;
			}

			// check multipart finalized
			if (s && '-' == s[2+boundary_len] && '-' == s[2+boundary_len+1]) {
				free(line);
				break;
			}
		}
 next:
 		free(line);
	}

//bb_info_msg("ENDPARSE[%s]", boundary);

	return EXIT_SUCCESS;
}
// split a string into individual tokens
void tokenise(const std::string &line, const std::string &filename, int line_num, const Options &opt,
    /*out*/ std::vector<Token> &tokens,
    bool test_is_raw_python = false   // whether --test input is raw python code (vs just a list of boolean expressions)
)
{
    size_t pos = 0;
    size_t len = line.length();
    bool found_assign_op = false;
    bool ids_can_be_keywords = opt.assign || (opt.test && !test_is_raw_python);

    while (pos < len)
    {
        size_t space_start = pos;

        // skip whitespace (and finish if end of line or comment)
        while (std::isspace(char_at(line, pos))) { ++pos; }
        if (pos >= len || line[pos] == '#') { break; }

        size_t num_spaces = pos - space_start;
        size_t tok_start = pos;
        char ch = line[pos];
        char next_ch = char_at(line, pos + 1);
        token_type type = t_undefined;
        std::string tok_str;

        if (opt.assign && found_assign_op)
        {
            type = t_string;
            pos = len;
            tok_str = trim_spaces(line.substr(tok_start, pos - tok_start));
            if (is_quoted(tok_str))
            {
                // make sure quotes are of the right type
                std::string unquoted_tok_str = tok_str.substr(1, tok_str.length() - 2);
                tok_str = quote(unquoted_tok_str, '\'');
            }
            else if (!is_number(tok_str)) { tok_str = quote(tok_str, '\''); }
        }
        else
        if (is_start_of_id(ch))
        {
            // TODO: maybe allow spaces around array indexes , e.g. "a/b[ 10 ]/c"
            while (is_id(char_at(line, pos))) { ++pos; }
            std::string id = line.substr(tok_start, pos - tok_start);
            check_transform_id(id);
            if (is_keyword(id) && !(ids_can_be_keywords && is_keyword_allowed_as_id(id))) { tok_str = id; type = t_keyword; }
            else if (id != kwd_expect && next_nonblank_char(line, pos) == '(') { tok_str = id; type = t_function; }
            else { tok_str = (opt.demangle ? demangle_id(id, true) : mangle_id(id)); type = t_id; }
        }
        else
        if (std::isdigit(ch) ||
            (ch == '.' && std::isdigit(next_ch)) ||
            (ch == '-' && (std::isdigit(next_ch) || next_ch == '.')))
        {
            bool any_digits = false;

            if (ch == '-') { ++pos; }
            while (std::isdigit(char_at(line, pos))) { ++pos; any_digits = true; }

            if (char_at(line, pos) == '.')
            {
                ++pos;
                while (std::isdigit(char_at(line, pos))) { ++pos; any_digits = true; }
            }

            // check for scientific notation
            // (TODO: merge common code with is_number function)
            if (any_digits && std::tolower(char_at(line, pos)) == 'e')
            {
                size_t pos2 = pos + 1;
                if (char_at(line, pos2) == '+' || char_at(line, pos2) == '-')
                {
                    ++pos2;
                    if (std::isdigit(char_at(line, pos2)))
                    { for (pos = pos2 + 1;std::isdigit(char_at(line, pos));++pos) { } }
                }
            }

            if (any_digits) { type = t_number; }
            else { type = t_operator; pos = tok_start + 1; }  // token is a single character ("-" or ".")

            tok_str = line.substr(tok_start, pos - tok_start);
        }
        else
        if (ch == '\"' || ch == '\'')
        {
            for (++pos;pos < len && line[pos] != ch;++pos)
            {
                // check for escape character
                if (line[pos] == '\\') { if (++pos >= len) break; }
            }
            if (pos < len) { ++pos; }
            tok_str = line.substr(tok_start, pos - tok_start);
            type = t_string;
        }
        else
        {
            pos += operator_length(line, pos);
            tok_str = line.substr(tok_start, pos - tok_start);
            type = t_operator;
            if (tok_str == "=")
            {
                found_assign_op = true;
                if (opt.test && (!test_is_raw_python || 
                    (tokens.size() > 0 && tokens[0].type == t_id && tokens[0].str == kwd_expect)))
                { tok_str = "=="; }
            }
        }

        tokens.push_back(Token(type, tok_str, num_spaces));

        if (!opt.command && tokens.size() == 1)
        {
            // Python will complain if the line is indented
            tokens[0].spaces_before = 0;
        }
    }

    transform_special_tokens(tokens, filename, line_num);

    if (opt.assign)
    {
        // transform var= into var=''
        if (tokens.size() == 2 && tokens[1].str == "=") { tokens.push_back(Token(t_string, "''", 0)); }
    }

    if (opt.test) { force_string_comparison_if_quoted(tokens); }

    if (opt.command)
    {
        // add any missing ":" at the end of the line
        if (tokens.size() > 0 && tokens[0].type == t_keyword)
        {
            // check if there is a ":" anywhere in the line
            if (find_token(tokens, t_operator, ":") == -1)
            {
                if (tokens[0].str == "if" || tokens[0].str == "else" || tokens[0].str == "elif" ||
                    tokens[0].str == "while" || tokens[0].str == "for" || tokens[0].str == "try" ||
                    tokens[0].str == "except" || tokens[0].str == "finally")
                { tokens.push_back(Token(t_operator, ":", 0)); }
            }
        }
    }
}
int find_first_data_track(const char *cue_path,
      int32_t *offset, char *track_path, size_t max_len)
{
   int rv;
   char tmp_token[MAX_TOKEN_LEN];
   RFILE *fd                     = 
      filestream_open(cue_path, RFILE_MODE_READ, -1);

   if (!fd)
   {
      RARCH_LOG("Could not open CUE file '%s': %s\n", cue_path,
            strerror(errno));
      return -errno;
   }

   RARCH_LOG("Parsing CUE file '%s'...\n", cue_path);

   tmp_token[0] = '\0';

   while (get_token(fd, tmp_token, MAX_TOKEN_LEN) > 0)
   {
      if (!string_is_empty(tmp_token))
      {
         if (string_is_equal_fast(tmp_token, "FILE", 4))
         {
            char cue_dir[PATH_MAX_LENGTH];

            cue_dir[0] = '\0';

            fill_pathname_basedir(cue_dir, cue_path, sizeof(cue_dir));

            get_token(fd, tmp_token, MAX_TOKEN_LEN);
            fill_pathname_join(track_path, cue_dir, tmp_token, max_len);

         }
         else if (string_is_equal_fast(tmp_token, "TRACK", 5))
         {
            int m, s, f;
            get_token(fd, tmp_token, MAX_TOKEN_LEN);
            get_token(fd, tmp_token, MAX_TOKEN_LEN);

            if (string_is_equal_fast(tmp_token, "AUDIO", 5))
               continue;

            find_token(fd, "INDEX");
            get_token(fd, tmp_token, MAX_TOKEN_LEN);
            get_token(fd, tmp_token, MAX_TOKEN_LEN);

            if (sscanf(tmp_token, "%02d:%02d:%02d", &m, &s, &f) < 3)
            {
               RARCH_LOG("Error parsing time stamp '%s'\n", tmp_token);
               filestream_close(fd);
               return -errno;
            }

            *offset = ((m * 60) * (s * 75) * f) * 25;

            RARCH_LOG("%s '%s+%d'\n",
                  msg_hash_to_str(MSG_FOUND_FIRST_DATA_TRACK_ON_FILE),
                  track_path, *offset);

            rv = 0;
            goto clean;
         }
      }
   }

   rv = -EINVAL;

clean:
   filestream_close(fd);
   return rv;
}
Exemple #23
0
void *cvar_alloc_handle(const char *cvar_parameters,
		void *(*cvar_malloc)(size_t size), void (*cvar_free)(void *cvar_ptr))
{
	cvar_token_t *list_head;;
	cvar_token_t *t;
	handle_t handle;
	handle_t *state = NULL;
	int ret = 0;

	cvar_trace("entry");

	/* Tokenize parameters supplied by filebench. */
	list_head = NULL;
	ret = tokenize(cvar_parameters, DEFAULT_PARAMETER_DELIMITER,
			DEFAULT_KEY_VALUE_DELIMITER, &list_head);
	if (ret)
		goto out;

	/* Get the value of lower, upper and mode. */
	t = find_token(list_head, RT_LOWER);
	if (t && t->value) {
		t->used = 1;
		handle.lower = atof(t->value);
	} else
		handle.lower = RT_LOWER_DEFAULT;

	t = find_token(list_head, RT_UPPER);
	if (t && t->value) {
		t->used = 1;
		handle.upper = atof(t->value);
	} else
		handle.upper = RT_UPPER_DEFAULT;

	t = find_token(list_head, RT_MODE);
	if (t && t->value) {
		t->used = 1;
		handle.mode = atof(t->value);
	} else
		handle.mode = RT_MODE_DEFAULT;

	cvar_trace("lower = %lf, upper = %lf, mode = %lf", handle.lower,
			handle.upper, handle.mode);

	/* Validate parameters. */
	if (handle.upper < handle.lower) {
		cvar_log_error("Invalid parameter values: lower = %lf and upper = %lf. "
				"upper must be greater than lower", handle.lower, handle.upper);
		goto out;
	}

	if ((handle.mode > handle.upper) || (handle.mode < handle.lower)) {
		cvar_log_error("Invalid parameter values: lower = %lf, mode = %lf and "
				"upper = %lf. mode must be between lower and upper",
				handle.lower, handle.mode, handle.upper);
		goto out;
	}

	/* Check if there are unused tokens. */
	t = unused_tokens(list_head);
	if (t) {
		cvar_log_error("Unsupported parameter %s", t->key);
		goto out;
	}

	/* Seed the state. */
	mts_goodseed(&handle.state);

	/* All set. Now allocate space for the handle in the shared segment and
	 * copy the state over. */
	state = (handle_t *) cvar_malloc(sizeof(handle_t));
	if (!state) {
		cvar_log_error("Out of memory");
		goto out;
	}

	*state = handle;

out:
	free_tokens(list_head);

	cvar_trace("exit");
	return state;
}
Exemple #24
0
fs::path Path::MakeRelative(fs::path const& path, std::string const& token) const {
	int idx = find_token(token.c_str(), token.size());
	if (idx == -1) throw agi::InternalError("Bad token: " + token);

	return MakeRelative(path, paths[idx]);
}
Exemple #25
0
fs::path Path::Decode(std::string const& path) const {
	int idx = find_token(path.c_str(), path.size());
	if (idx == -1 || paths[idx].empty())
		return fs::path(path).make_preferred();
	return (paths[idx]/path.substr(strlen(tokens[idx]))).make_preferred();
}
Exemple #26
0
/* This driver uses INST_IO links,
 * the string has to be of the format
 *
 *      @PLC tag flags
 *
 * count: number of array elements to read (only != 1 for waveform record)
 * bits: if >0 indicates that we want binary data,
 *       then it's the number of bits
 */
static long analyze_link(dbCommon *rec,
                         EIPCallback cbtype,
                         const DBLINK *link,
                         size_t count,
                         size_t bits)
{
    DevicePrivate  *pvt = (DevicePrivate *)rec->dpvt;
    char           *p, *end;
    size_t         i, tag_len, last_element, bit=0;
    unsigned long  mask;
    double         period = 0.0;
    eip_bool       single_element = false;
    SpecialOptions special = 0;
    
    if (! EIP_strdup(&pvt->link_text, link->value.instio.string,
                     strlen (link->value.instio.string)))
    {
        errlogPrintf("devEtherIP (%s): Cannot copy link\n", rec->name);
        return S_dev_noMemory;
    }
    /* Find PLC */
    p = find_token(pvt->link_text, &end);
    if (! p)
    {
        errlogPrintf("devEtherIP (%s): Missing PLC in link '%s'\n",
                     rec->name, pvt->link_text);
        return S_db_badField;
    }
    if (! EIP_strdup(&pvt->PLC_name, p, end-p))
    {
        errlogPrintf("devEtherIP (%s): Cannot copy PLC\n", rec->name);
        return S_dev_noMemory;
    }

    /* Find Tag */
    p = find_token(end, &end);
    if (! p)
    {
        errlogPrintf("devEtherIP (%s): Missing tag in link '%s'\n",
                     rec->name, pvt->link_text);
        return(S_db_badField);
    }
    tag_len = end-p;
    if (! EIP_strdup(&pvt->string_tag, p, tag_len))
    {
        errlogPrintf("devEtherIP (%s): Cannot copy tag\n", rec->name);
        return S_dev_noMemory;
    }
    
    /* Check for more flags */
    while ((p = find_token(end, &end)))
    {
        for (i=0, mask=1;
             mask < SPCO_INVALID;
             ++i, mask=mask<<1)
        {
            if (strncmp(p,
                        special_options[i].text,
                        special_options[i].len) == 0)
            {
                special |= mask;
                if (mask==SPCO_READ_SINGLE_ELEMENT)
                {
                    if (count != 1)
                    {
                        errlogPrintf("devEtherIP (%s): "
                                     "Array record cannot use 'E' flag "
                                     "('%s')\n",
                                     rec->name, pvt->link_text);
                        return S_db_badField;
                    }
                    single_element = true;
                }
                else if (mask==SPCO_SCAN_PERIOD)
                {
                    period = strtod(p+2, &end);
                    if (end==p || period==HUGE_VAL || period==-HUGE_VAL)
                    {
                        errlogPrintf("devEtherIP (%s): "
                                     "Error in scan flag in link '%s'\n",
                                     rec->name, pvt->link_text);
                        return S_db_badField;
                    }
                }
                else if (mask==SPCO_BIT)
                {
                    bit = strtod(p+2, &end);
                    if (end==p || period==HUGE_VAL || period==-HUGE_VAL)
                    {
                        errlogPrintf("devEtherIP (%s): "
                                     "Error in bit flag in link '%s'\n",
                                     rec->name, pvt->link_text);
                        return S_db_badField;
                    }
                }
                break;
            }
        }
        if (mask >= SPCO_INVALID)
        {
            errlogPrintf("devEtherIP (%s): Invalid flag '%s' in link '%s'\n",
                         rec->name, p, pvt->link_text);
            return S_db_badField;
        }
    }
    
    pvt->special = special;
    if (period <= 0.0) /* no scan flag-> get SCAN field: */
    {
        period = get_period(rec);
        if (period <= 0)
            period = drvEtherIP_default_rate;
        if (period <= 0)
        {
            errlogPrintf("devEtherIP (%s): cannot decode SCAN field,"
                         " no scan flag given\n", rec->name);
            period = 1.0; /* default scan rate */
            errlogPrintf("Device support will use the default of %g secs, ",
                         period);
            errlogPrintf("please complete the record configuration\n");
        }
    }
    
    /* Parsed link_text into PLC_name, string_tag, special flags.
     * Analyse further */
    pvt->element = 0;
    p = &pvt->string_tag[tag_len-1];
    if (*p == ']') /* array tag? */
    {
        if (! single_element)
        {   /* Cut "array_tag[el]" into "array_tag" + el */
            while (p > pvt->string_tag)
                if (*(--p) == '[')
                    break;
            if (p <= pvt->string_tag)
            {
                errlogPrintf("devEtherIP (%s): malformed array tag in '%s'\n",
                             rec->name, pvt->link_text);
                return S_db_badField;
            }
            /* read element number */
            pvt->element = strtol(p+1, &end, 0);
            if (end==p+1 || pvt->element==LONG_MAX || pvt->element==LONG_MIN)
            {
                errlogPrintf("devEtherIP (%s): malformed array tag in '%s'\n",
                             rec->name, pvt->link_text);
                return S_db_badField;
            }
            /* remove element number text from tag */
            *p = '\0';
        }
    }

    pvt->plc = drvEtherIP_find_PLC(pvt->PLC_name);
    if (! pvt->plc)
    {
        errlogPrintf("devEtherIP (%s): unknown PLC '%s'\n",
                     rec->name, pvt->PLC_name);
        return S_db_badField;
    }

    if (count > 1 && (bits > 0  || (special & SPCO_BIT)))
    {
        errlogPrintf("devEtherIP (%s): cannot access bits for array records\n",
                     rec->name);
        return S_db_badField;
    }
    /* For Element==0 the following makes no difference, only
     * for binary records (bits=1 or more)
     * Options:
     * a) assume BOOL array (default)
     * b) non-BOOL, SPCO_BIT selected a bit in INT, DINT, ...
     */
    if (bits>0 && !(special & SPCO_BIT))
    {
        /* For element>0, assume that it's a BOOL array,
         * so the data is packed into UDINTs (CIP "BITS").
         * The actual element requested is the UDINT index,
         * not the bit#.
         * Pick the bits within the UDINT via the mask. */
        pvt->mask = 1U << (pvt->element & 0x1F); /* 0x1F == 31 */
        last_element = pvt->element + bits - 1;
        pvt->element >>= 5;
        last_element >>= 5;
    }
Exemple #27
0
void *cvar_alloc_handle(const char *cvar_parameters,
		void *(*cvar_malloc)(size_t size), void (*cvar_free)(void *cvar_ptr))
{
	cvar_token_t *list_head;;
	cvar_token_t *t;
	handle_t handle;
	handle_t *state = NULL;
	int ret = 0;

	cvar_trace("entry");

	/* Tokenize parameters supplied by filebench. */
	list_head = NULL;
	ret = tokenize(cvar_parameters, DEFAULT_PARAMETER_DELIMITER,
			DEFAULT_KEY_VALUE_DELIMITER, &list_head);
	if (ret)
		goto out;

	/* Get the value of shape and rate. */
	t = find_token(list_head, RER_SHAPE);
	if (t && t->value) {
		t->used = 1;
		handle.shape = atoi(t->value);
	} else
		handle.shape = RER_SHAPE_DEFAULT;

	t = find_token(list_head, RER_RATE);
	if (t && t->value) {
		t->used = 1;
		handle.rate = atof(t->value);
	} else
		handle.rate = RER_RATE_DEFAULT;

	cvar_trace("shape = %d, rate = %lf", handle.shape, handle.rate);

	/* Validate parameters. */
	if (handle.shape < 0) {
		cvar_log_error("Invalid parameter value: shape = %d. shape is a "
				"non-zero positive integer", handle.shape);
		goto out;
	}

	if (handle.rate < 0) {
		cvar_log_error("Invalid parameter value: rate = %lf. rate is a "
				"non-zero positive rational number", handle.rate);
		goto out;
	}

	t = unused_tokens(list_head);
	if (t) {
		cvar_log_error("Unsupported parameter %s", t->key);
		goto out;
	}

	/* Seed the state. */
	mts_goodseed(&handle.state);

	/* All set. Now allocate space for the handle in the shared segment and
	 * copy the state over. */
	state = (handle_t *) cvar_malloc(sizeof(handle_t));
	if (!state) {
		cvar_log_error("Out of memory");
		goto out;
	}

	*state = handle;

out:
	free_tokens(list_head);

	cvar_trace("exit");
	return state;
}