ftp.tab.c

含有BACKTARACKING的編譯軟體

#ifndef lint
static const char yysccsid[] = "@(#)yaccpar	1.9 (Berkeley) 02/21/93";
#endif
#define YYBYACC 1
#define YYMAJOR 1
#define YYMINOR 9
#define yyclearin (yychar=(-1))
#define yyerrok (yyerrflag=0)
#define YYRECOVERING (yyerrflag!=0)
extern int yyparse(void);
#define YYPREFIX "yy"
#line 26 "ftp.y"

#ifndef lint
static char sccsid[] = "@(#)ftpcmd.y	5.20.1.1 (Berkeley) 3/2/89";
#endif /* not lint */

#include <sys/param.h>
#include <sys/socket.h>

#include <netinet/in.h>

#include <arpa/ftp.h>

#include <stdio.h>
#include <signal.h>
#include <ctype.h>
#include <pwd.h>
#include <setjmp.h>
#include <syslog.h>
#include <sys/stat.h>
#include <time.h>

extern	struct sockaddr_in data_dest;
extern	int logged_in;
extern	struct passwd *pw;
extern	int guest;
extern	int logging;
extern	int type;
extern	int form;
extern	int debug;
extern	int timeout;
extern	int maxtimeout;
extern  int pdata;
extern	char hostname[], remotehost[];
extern	char proctitle[];
extern	char *globerr;
extern	int usedefault;
extern  int transflag;
extern  char tmpline[];
char	**glob();

static	int cmd_type;
static	int cmd_form;
static	int cmd_bytesz;
char	cbuf[512];
char	*fromname;

char	*index();
#line 61 "ftp.tab.c"
#define A 257
#define B 258
#define C 259
#define E 260
#define F 261
#define I 262
#define L 263
#define N 264
#define P 265
#define R 266
#define S 267
#define T 268
#define SP 269
#define CRLF 270
#define COMMA 271
#define STRING 272
#define NUMBER 273
#define USER 274
#define PASS 275
#define ACCT 276
#define REIN 277
#define QUIT 278
#define PORT 279
#define PASV 280
#define TYPE 281
#define STRU 282
#define MODE 283
#define RETR 284
#define STOR 285
#define APPE 286
#define MLFL 287
#define MAIL 288
#define MSND 289
#define MSOM 290
#define MSAM 291
#define MRSQ 292
#define MRCP 293
#define ALLO 294
#define REST 295
#define RNFR 296
#define RNTO 297
#define ABOR 298
#define DELE 299
#define CWD 300
#define LIST 301
#define NLST 302
#define SITE 303
#define STAT 304
#define HELP 305
#define NOOP 306
#define MKD 307
#define RMD 308
#define PWD 309
#define CDUP 310
#define STOU 311
#define SMNT 312
#define SYST 313
#define SIZE 314
#define MDTM 315
#define UMASK 316
#define IDLE 317
#define CHMOD 318
#define LEXERR 319
#define YYERRCODE 256
short yylhs[] = {                                        -1,
    0,    0,    0,    1,    1,    1,    1,    1,    1,    1,
    1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
    1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
    1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
    1,    1,    1,    1,    1,    1,    2,    3,    4,    4,
   12,    5,   13,   13,   13,    6,    6,    6,    6,    6,
    6,    6,    6,    7,    7,    7,    8,    8,    8,   10,
   14,   11,    9,
};
short yylen[] = {                                         2,
    0,    2,    2,    4,    4,    4,    2,    4,    4,    4,
    4,    8,    5,    5,    5,    3,    5,    3,    5,    5,
    2,    5,    4,    2,    3,    5,    2,    4,    2,    5,
    5,    3,    3,    4,    6,    5,    7,    9,    4,    6,
    5,    2,    5,    5,    2,    2,    5,    1,    0,    1,
    1,   11,    1,    1,    1,    1,    3,    1,    3,    1,
    1,    3,    2,    1,    1,    1,    1,    1,    1,    1,
    1,    1,    0,
};
short yydefred[] = {                                      1,
    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
   73,   73,   73,    0,   73,    0,    0,   73,   73,   73,
   73,    0,    0,    0,    0,   73,   73,   73,   73,   73,
    0,   73,   73,    2,    3,   46,    0,    0,   45,    0,
    7,    0,    0,    0,    0,    0,    0,    0,    0,    0,
   24,    0,    0,    0,    0,    0,   21,    0,    0,   27,
   29,    0,    0,    0,    0,    0,   42,    0,    0,   48,
    0,   50,    0,    0,    0,    0,    0,   60,    0,    0,
   64,   66,   65,    0,   68,   69,   67,    0,    0,    0,
    0,    0,    0,   71,    0,   70,    0,    0,   25,    0,
   18,    0,   16,    0,   73,    0,   73,    0,    0,    0,
    0,   32,   33,    0,    0,    0,    4,    5,    0,    6,
    0,    0,    0,   51,   63,    8,    9,   10,    0,    0,
    0,    0,   11,    0,   23,    0,    0,    0,    0,    0,
   34,    0,    0,   39,    0,    0,   28,    0,    0,    0,
    0,    0,    0,   55,   53,   54,   57,   59,   62,   13,
   14,   15,    0,   47,   22,   26,   19,   17,    0,    0,
   36,    0,    0,   20,   30,   31,   41,   43,   44,    0,
    0,   35,   72,    0,   40,    0,    0,    0,   37,    0,
    0,   12,    0,    0,   38,    0,    0,    0,   52,
};
short yydgoto[] = {                                       1,
   34,   35,   71,   73,   75,   80,   84,   88,   45,   95,
  184,  125,  157,   96,
};
short yysindex[] = {                                      0,
 -224, -247, -239, -236, -232, -222, -204, -200, -181, -177,
    0,    0,    0, -166,    0, -161, -199,    0,    0,    0,
    0, -160, -159, -264, -158,    0,    0,    0,    0,    0,
 -157,    0,    0,    0,    0,    0, -167, -162,    0, -156,
    0, -250, -198, -165, -155, -154, -153, -151, -150, -152,
    0, -145, -252, -229, -217, -302,    0, -144, -146,    0,
    0, -142, -141, -140, -139, -137,    0, -136, -135,    0,
 -134,    0, -133, -132, -130, -131, -128,    0, -249, -127,
    0,    0,    0, -126,    0,    0,    0, -125, -152, -152,
 -152, -205, -152,    0, -124,    0, -152, -152,    0, -152,
    0, -143,    0, -173,    0, -171,    0, -152, -123, -152,
 -152,    0,    0, -152, -152, -152,    0,    0, -138,    0,
 -164, -164, -122,    0,    0,    0,    0,    0, -121, -120,
 -118, -148,    0, -117,    0, -116, -115, -114, -113, -112,
    0, -163, -111,    0, -110, -109,    0, -107, -106, -105,
 -104, -103, -129,    0,    0,    0,    0,    0,    0,    0,
    0,    0, -101,    0,    0,    0,    0,    0, -100, -102,
    0,  -98, -102,    0,    0,    0,    0,    0,    0,  -99,
  -97,    0,    0,  -95,    0,  -96,  -94,  -92,    0, -152,
  -93,    0,  -91,  -90,    0,  -88,  -87,  -86,    0,
};
short yyrindex[] = {                                      0,
    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
    0,    0,  -83,    0,    0,    0,    0,    0,    0,    0,
    0,    0,    0,    0,    0,    0,    0,  -82,    0,    0,
    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
    0,    0,    0,    0,    0,  -81,  -80,    0, -158,    0,
    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
    0,    0,    0,    0,    0,    0,    0,    0,    0,
};
short yygindex[] = {                                      0,
    0,    0,    0,    0,    0,    0,    0,    0,   16,  -89,
  -25,   35,   47,    0,
};
#define YYTABLESIZE 190
short yytable[] = {                                     129,
  130,  131,  104,  134,   59,   60,   76,  136,  137,   77,
  138,   78,   79,  105,  106,  107,   98,   99,  146,  123,
  148,  149,   36,  124,  150,  151,  152,   46,   47,   37,
   49,    2,   38,   52,   53,   54,   55,   39,   58,  100,
  101,   62,   63,   64,   65,   66,   40,   68,   69,    3,
    4,  102,  103,    5,    6,    7,    8,    9,   10,   11,
   12,   13,   81,  132,  133,   41,   82,   83,   42,   14,
   51,   15,   16,   17,   18,   19,   20,   21,   22,   23,
   24,   25,   26,   27,   28,   29,   30,   43,   31,   32,
   33,   44,   85,   86,  154,  140,  141,  143,  144,  155,
  193,   87,   48,  156,   70,  170,  171,   50,   56,   72,
   57,   61,   67,   89,   90,   91,   74,  163,   93,   94,
  142,   92,  145,   97,  108,  109,  110,  111,  139,  112,
  113,  114,  115,  116,  153,  117,  118,  121,  119,  120,
  122,  180,  126,  127,  128,  135,  147,  186,  160,  161,
  124,  162,  164,  165,  166,  167,  168,  159,  173,  169,
  174,  172,  175,  176,  177,  178,  179,  181,  158,  182,
  183,  185,  190,  187,  189,  188,  191,  192,  195,  194,
  196,    0,    0,  198,  197,   73,  199,   49,   56,   58,
};
short yycheck[] = {                                      89,
   90,   91,  305,   93,  269,  270,  257,   97,   98,  260,
  100,  262,  263,  316,  317,  318,  269,  270,  108,  269,
  110,  111,  270,  273,  114,  115,  116,   12,   13,  269,
   15,  256,  269,   18,   19,   20,   21,  270,   23,  269,
  270,   26,   27,   28,   29,   30,  269,   32,   33,  274,
  275,  269,  270,  278,  279,  280,  281,  282,  283,  284,
  285,  286,  261,  269,  270,  270,  265,  266,  269,  294,
  270,  296,  297,  298,  299,  300,  301,  302,  303,  304,
  305,  306,  307,  308,  309,  310,  311,  269,  313,  314,
  315,  269,  258,  259,  259,  269,  270,  269,  270,  264,
  190,  267,  269,  268,  272,  269,  270,  269,  269,  272,
  270,  270,  270,  269,  269,  269,  273,  266,  269,  272,
  105,  273,  107,  269,  269,  272,  269,  269,  272,  270,
  270,  269,  269,  269,  273,  270,  270,  269,  271,  270,
  269,  271,  270,  270,  270,  270,  270,  173,  270,  270,
  273,  270,  270,  270,  270,  270,  270,  123,  269,  272,
  270,  273,  270,  270,  270,  270,  270,  269,  122,  270,
  273,  270,  269,  273,  270,  273,  271,  270,  270,  273,
  271,   -1,   -1,  271,  273,  269,  273,  270,  270,  270,
};
#define YYFINAL 1
#ifndef YYDEBUG
#define YYDEBUG 0
#endif
#define YYMAXTOKEN 319
#if YYDEBUG
char *yyname[] = {
"end-of-file",0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,"A","B","C","E","F","I","L","N",
"P","R","S","T","SP","CRLF","COMMA","STRING","NUMBER","USER","PASS","ACCT",
"REIN","QUIT","PORT","PASV","TYPE","STRU","MODE","RETR","STOR","APPE","MLFL",
"MAIL","MSND","MSOM","MSAM","MRSQ","MRCP","ALLO","REST","RNFR","RNTO","ABOR",
"DELE","CWD","LIST","NLST","SITE","STAT","HELP","NOOP","MKD","RMD","PWD","CDUP",
"STOU","SMNT","SYST","SIZE","MDTM","UMASK","IDLE","CHMOD","LEXERR",
};
char *yyrule[] = {
"$accept : cmd_list",
"cmd_list :",
"cmd_list : cmd_list cmd",
"cmd_list : cmd_list rcmd",
"cmd : USER SP username CRLF",
"cmd : PASS SP password CRLF",
"cmd : PORT SP host_port CRLF",
"cmd : PASV CRLF",
"cmd : TYPE SP type_code CRLF",
"cmd : STRU SP struct_code CRLF",
"cmd : MODE SP mode_code CRLF",
"cmd : ALLO SP NUMBER CRLF",
"cmd : ALLO SP NUMBER SP R SP NUMBER CRLF",
"cmd : RETR check_login SP pathname CRLF",
"cmd : STOR check_login SP pathname CRLF",
"cmd : APPE check_login SP pathname CRLF",
"cmd : NLST check_login CRLF",
"cmd : NLST check_login SP STRING CRLF",
"cmd : LIST check_login CRLF",
"cmd : LIST check_login SP pathname CRLF",
"cmd : STAT check_login SP pathname CRLF",
"cmd : STAT CRLF",
"cmd : DELE check_login SP pathname CRLF",
"cmd : RNTO SP pathname CRLF",
"cmd : ABOR CRLF",
"cmd : CWD check_login CRLF",
"cmd : CWD check_login SP pathname CRLF",
"cmd : HELP CRLF",
"cmd : HELP SP STRING CRLF",
"cmd : NOOP CRLF",
"cmd : MKD check_login SP pathname CRLF",
"cmd : RMD check_login SP pathname CRLF",
"cmd : PWD check_login CRLF",
"cmd : CDUP check_login CRLF",
"cmd : SITE SP HELP CRLF",
"cmd : SITE SP HELP SP STRING CRLF",
"cmd : SITE SP UMASK check_login CRLF",
"cmd : SITE SP UMASK check_login SP octal_number CRLF",
"cmd : SITE SP CHMOD check_login SP octal_number SP pathname CRLF",
"cmd : SITE SP IDLE CRLF",
"cmd : SITE SP IDLE SP NUMBER CRLF",
"cmd : STOU check_login SP pathname CRLF",
"cmd : SYST CRLF",
"cmd : SIZE check_login SP pathname CRLF",
"cmd : MDTM check_login SP pathname CRLF",
"cmd : QUIT CRLF",
"cmd : error CRLF",
"rcmd : RNFR check_login SP pathname CRLF",
"username : STRING",
"password :",
"password : STRING",
"byte_size : NUMBER",
"host_port : NUMBER COMMA NUMBER COMMA NUMBER COMMA NUMBER COMMA NUMBER COMMA NUMBER",
"form_code : N",
"form_code : T",
"form_code : C",
"type_code : A",
"type_code : A SP form_code",
"type_code : E",
"type_code : E SP form_code",
"type_code : I",
"type_code : L",
"type_code : L SP byte_size",
"type_code : L byte_size",
"struct_code : F",
"struct_code : R",
"struct_code : P",
"mode_code : S",
"mode_code : B",
"mode_code : C",
"pathname : pathstring",
"pathstring : STRING",
"octal_number : NUMBER",
"check_login :",
};
#endif
#ifndef YYSTYPE
typedef int YYSTYPE;
#endif
#ifdef YYSTACKSIZE
#undef YYMAXDEPTH
#define YYMAXDEPTH YYSTACKSIZE
#else
#ifdef YYMAXDEPTH
#define YYSTACKSIZE YYMAXDEPTH
#else
#define YYSTACKSIZE 500
#define YYMAXDEPTH 500
#endif
#endif
int yydebug;
int yynerrs;
int yyerrflag;
int yychar;
short *yyssp;
YYSTYPE *yyvsp;
YYSTYPE yyval;
YYSTYPE yylval;
short yyss[YYSTACKSIZE];
YYSTYPE yyvs[YYSTACKSIZE];
#define yystacksize YYSTACKSIZE
#line 658 "ftp.y"

extern jmp_buf errcatch;

#define	CMD	0	/* beginning of command */
#define	ARGS	1	/* expect miscellaneous arguments */
#define	STR1	2	/* expect SP followed by STRING */
#define	STR2	3	/* expect STRING */
#define	OSTR	4	/* optional SP then STRING */
#define	ZSTR1	5	/* SP then optional STRING */
#define	ZSTR2	6	/* optional STRING after SP */
#define	SITECMD	7	/* SITE command */
#define	NSTR	8	/* Number followed by a string */

struct tab {
	char	*name;
	short	token;
	short	state;
	short	implemented;	/* 1 if command is implemented */
	char	*help;
};

struct tab cmdtab[] = {		/* In order defined in RFC 765 */
	{ "USER", USER, STR1, 1,	"<sp> username" },
	{ "PASS", PASS, ZSTR1, 1,	"<sp> password" },
	{ "ACCT", ACCT, STR1, 0,	"(specify account)" },
	{ "SMNT", SMNT, ARGS, 0,	"(structure mount)" },
	{ "REIN", REIN, ARGS, 0,	"(reinitialize server state)" },
	{ "QUIT", QUIT, ARGS, 1,	"(terminate service)", },
	{ "PORT", PORT, ARGS, 1,	"<sp> b0, b1, b2, b3, b4" },
	{ "PASV", PASV, ARGS, 1,	"(set server in passive mode)" },
	{ "TYPE", TYPE, ARGS, 1,	"<sp> [ A | E | I | L ]" },
	{ "STRU", STRU, ARGS, 1,	"(specify file structure)" },
	{ "MODE", MODE, ARGS, 1,	"(specify transfer mode)" },
	{ "RETR", RETR, STR1, 1,	"<sp> file-name" },
	{ "STOR", STOR, STR1, 1,	"<sp> file-name" },
	{ "APPE", APPE, STR1, 1,	"<sp> file-name" },
	{ "MLFL", MLFL, OSTR, 0,	"(mail file)" },
	{ "MAIL", MAIL, OSTR, 0,	"(mail to user)" },
	{ "MSND", MSND, OSTR, 0,	"(mail send to terminal)" },
	{ "MSOM", MSOM, OSTR, 0,	"(mail send to terminal or mailbox)" },
	{ "MSAM", MSAM, OSTR, 0,	"(mail send to terminal and mailbox)" },
	{ "MRSQ", MRSQ, OSTR, 0,	"(mail recipient scheme question)" },
	{ "MRCP", MRCP, STR1, 0,	"(mail recipient)" },
	{ "ALLO", ALLO, ARGS, 1,	"allocate storage (vacuously)" },
	{ "REST", REST, ARGS, 0,	"(restart command)" },
	{ "RNFR", RNFR, STR1, 1,	"<sp> file-name" },
	{ "RNTO", RNTO, STR1, 1,	"<sp> file-name" },
	{ "ABOR", ABOR, ARGS, 1,	"(abort operation)" },
	{ "DELE", DELE, STR1, 1,	"<sp> file-name" },
	{ "CWD",  CWD,  OSTR, 1,	"[ <sp> directory-name ]" },
	{ "XCWD", CWD,	OSTR, 1,	"[ <sp> directory-name ]" },
	{ "LIST", LIST, OSTR, 1,	"[ <sp> path-name ]" },
	{ "NLST", NLST, OSTR, 1,	"[ <sp> path-name ]" },
	{ "SITE", SITE, SITECMD, 1,	"site-cmd [ <sp> arguments ]" },
	{ "SYST", SYST, ARGS, 1,	"(get type of operating system)" },
	{ "STAT", STAT, OSTR, 1,	"[ <sp> path-name ]" },
	{ "HELP", HELP, OSTR, 1,	"[ <sp> <string> ]" },
	{ "NOOP", NOOP, ARGS, 1,	"" },
	{ "MKD",  MKD,  STR1, 1,	"<sp> path-name" },
	{ "XMKD", MKD,  STR1, 1,	"<sp> path-name" },
	{ "RMD",  RMD,  STR1, 1,	"<sp> path-name" },
	{ "XRMD", RMD,  STR1, 1,	"<sp> path-name" },
	{ "PWD",  PWD,  ARGS, 1,	"(return current directory)" },
	{ "XPWD", PWD,  ARGS, 1,	"(return current directory)" },
	{ "CDUP", CDUP, ARGS, 1,	"(change to parent directory)" },
	{ "XCUP", CDUP, ARGS, 1,	"(change to parent directory)" },
	{ "STOU", STOU, STR1, 1,	"<sp> file-name" },
	{ "SIZE", SIZE, OSTR, 1,	"<sp> path-name" },
	{ "MDTM", MDTM, OSTR, 1,	"<sp> path-name" },
	{ NULL,   0,    0,    0,	0 }
};

struct tab sitetab[] = {
	{ "UMASK", UMASK, ARGS, 1,	"[ <sp> umask ]" },
	{ "IDLE", IDLE, ARGS, 1,	"[ <sp> maximum-idle-time ]" },
	{ "CHMOD", CHMOD, NSTR, 1,	"<sp> mode <sp> file-name" },
	{ "HELP", HELP, OSTR, 1,	"[ <sp> <string> ]" },
	{ NULL,   0,    0,    0,	0 }
};

struct tab *
lookup(p, cmd)
	register struct tab *p;
	char *cmd;
{

	for (; p->name != NULL; p++)
		if (strcmp(cmd, p->name) == 0)
			return (p);
	return (0);
}

#include <arpa/telnet.h>

/*
 * getline - a hacked up version of fgets to ignore TELNET escape codes.
 */
char *
getline(s, n, iop)
	char *s;
	register FILE *iop;
{
	register c;
	register char *cs;

	cs = s;
/* tmpline may contain saved command from urgent mode interruption */
	for (c = 0; tmpline[c] != '\0' && --n > 0; ++c) {
		*cs++ = tmpline[c];
		if (tmpline[c] == '\n') {
			*cs++ = '\0';
			if (debug)
				syslog(LOG_DEBUG, "command: %s", s);
			tmpline[0] = '\0';
			return(s);
		}
		if (c == 0)
			tmpline[0] = '\0';
	}
	while ((c = getc(iop)) != EOF) {
		c &= 0377;
		if (c == IAC) {
		    if ((c = getc(iop)) != EOF) {
			c &= 0377;
			switch (c) {
			case WILL:
			case WONT:
				c = getc(iop);
				printf("%c%c%c", IAC, DONT, 0377&c);
				(void) fflush(stdout);
				continue;
			case DO:
			case DONT:
				c = getc(iop);
				printf("%c%c%c", IAC, WONT, 0377&c);
				(void) fflush(stdout);
				continue;
			case IAC:
				break;
			default:
				continue;	/* ignore command */
			}
		    }
		}
		*cs++ = c;
		if (--n <= 0 || c == '\n')
			break;
	}
	if (c == EOF && cs == s)
		return (NULL);
	*cs++ = '\0';
	if (debug)
		syslog(LOG_DEBUG, "command: %s", s);
	return (s);
}

static int
toolong()
{
	time_t now;
	extern char *ctime();
	extern time_t time();

	reply(421,
	  "Timeout (%d seconds): closing control connection.", timeout);
	(void) time(&now);
	if (logging) {
		syslog(LOG_INFO,
			"User %s timed out after %d seconds at %s",
			(pw ? pw -> pw_name : "unknown"), timeout, ctime(&now));
	}
	dologout(1);
}

yylex()
{
	static int cpos, state;
	register char *cp, *cp2;
	register struct tab *p;
	int n;
	char c, *strpbrk();
	char *copy();

	for (;;) {
		switch (state) {

		case CMD:
			(void) signal(SIGALRM, toolong);
			(void) alarm((unsigned) timeout);
			if (getline(cbuf, sizeof(cbuf)-1, stdin) == NULL) {
				reply(221, "You could at least say goodbye.");
				dologout(0);
			}
			(void) alarm(0);
#ifdef SETPROCTITLE
			if (strncasecmp(cbuf, "PASS", 4) != NULL)
				setproctitle("%s: %s", proctitle, cbuf);
#endif /* SETPROCTITLE */