/* A Bison parser, made from /home/gd4/gnu/inetutils/ftpd/ftpcmd.y by Bison version A2.5 (Andrew Consortium) */ #define YYBISON 1 /* Identify Bison output. */ #define A 258 #define B 259 #define C 260 #define E 261 #define F 262 #define I 263 #define L 264 #define N 265 #define P 266 #define R 267 #define S 268 #define T 269 #define SP 270 #define CRLF 271 #define COMMA 272 #define USER 273 #define PASS 274 #define ACCT 275 #define REIN 276 #define QUIT 277 #define PORT 278 #define PASV 279 #define TYPE 280 #define STRU 281 #define MODE 282 #define RETR 283 #define STOR 284 #define APPE 285 #define MLFL 286 #define MAIL 287 #define MSND 288 #define MSOM 289 #define MSAM 290 #define MRSQ 291 #define MRCP 292 #define ALLO 293 #define REST 294 #define RNFR 295 #define RNTO 296 #define ABOR 297 #define DELE 298 #define CWD 299 #define LIST 300 #define NLST 301 #define SITE 302 #define STAT 303 #define HELP 304 #define NOOP 305 #define MKD 306 #define RMD 307 #define PWD 308 #define CDUP 309 #define STOU 310 #define SMNT 311 #define SYST 312 #define SIZE 313 #define MDTM 314 #define UMASK 315 #define IDLE 316 #define CHMOD 317 #define LEXERR 318 #define STRING 319 #define NUMBER 320 #line 41 "/home/gd4/gnu/inetutils/ftpd/ftpcmd.y" #ifndef lint static char sccsid[] = "@(#)ftpcmd.y 8.3 (Berkeley) 4/6/94"; #endif /* not lint */ #ifdef HAVE_CONFIG_H #include #endif #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #ifdef TIME_WITH_SYS_TIME # include # include #else # ifdef HAVE_SYS_TIME_H # include # else # include # endif #endif #include #include #ifdef HAVE_SYS_UTSNAME_H #include #endif /* Include glob.h last, because it may define "const" which breaks system headers on some platforms. */ #include #include "extern.h" #if ! defined (NBBY) && defined (CHAR_BIT) #define NBBY CHAR_BIT #endif 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 int usedefault; extern int transflag; extern char tmpline[]; off_t restart_point; static int cmd_type; static int cmd_form; static int cmd_bytesz; char cbuf[512]; char *fromname; struct tab { char *name; short token; short state; short implemented; /* 1 if command is implemented */ char *help; }; extern struct tab cmdtab[], sitetab[]; static char *copy __P((char *)); static void help __P((struct tab *, char *)); static struct tab * lookup __P((struct tab *, char *)); static void sizecmd __P((char *)); static void toolong __P((int)); static int yylex __P((void)); #line 138 "/home/gd4/gnu/inetutils/ftpd/ftpcmd.y" typedef union { int i; char *s; } YYSTYPE; #include #ifndef __cplusplus #ifndef __STDC__ #define const #endif #endif #define YYFINAL 206 #define YYFLAG -32768 #define YYNTBASE 66 #define YYTRANSLATE(x) ((unsigned)(x) <= 320 ? yytranslate[x] : 81) static const char yytranslate[] = { 0, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65 }; #if YYDEBUG != 0 static const short yyprhs[] = { 0, 0, 1, 4, 7, 12, 17, 22, 26, 31, 36, 41, 46, 55, 61, 67, 73, 77, 83, 87, 93, 99, 102, 108, 113, 116, 120, 126, 129, 134, 137, 143, 149, 153, 157, 162, 169, 175, 183, 193, 198, 205, 211, 214, 220, 226, 229, 232, 238, 243, 245, 246, 248, 250, 262, 264, 266, 268, 270, 274, 276, 280, 282, 284, 288, 291, 293, 295, 297, 299, 301, 303, 305, 307, 309 }; static const short yyrhs[] = { -1, 66, 67, 0, 66, 68, 0, 18, 15, 69, 16, 0, 19, 15, 70, 16, 0, 23, 15, 72, 16, 0, 24, 80, 16, 0, 25, 15, 74, 16, 0, 26, 15, 75, 16, 0, 27, 15, 76, 16, 0, 38, 15, 65, 16, 0, 38, 15, 65, 15, 12, 15, 65, 16, 0, 28, 80, 15, 77, 16, 0, 29, 80, 15, 77, 16, 0, 30, 80, 15, 77, 16, 0, 46, 80, 16, 0, 46, 80, 15, 64, 16, 0, 45, 80, 16, 0, 45, 80, 15, 77, 16, 0, 48, 80, 15, 77, 16, 0, 48, 16, 0, 43, 80, 15, 77, 16, 0, 41, 15, 77, 16, 0, 42, 16, 0, 44, 80, 16, 0, 44, 80, 15, 77, 16, 0, 49, 16, 0, 49, 15, 64, 16, 0, 50, 16, 0, 51, 80, 15, 77, 16, 0, 52, 80, 15, 77, 16, 0, 53, 80, 16, 0, 54, 80, 16, 0, 47, 15, 49, 16, 0, 47, 15, 49, 15, 64, 16, 0, 47, 15, 60, 80, 16, 0, 47, 15, 60, 80, 15, 79, 16, 0, 47, 15, 62, 80, 15, 79, 15, 77, 16, 0, 47, 15, 61, 16, 0, 47, 15, 61, 15, 65, 16, 0, 55, 80, 15, 77, 16, 0, 57, 16, 0, 58, 80, 15, 77, 16, 0, 59, 80, 15, 77, 16, 0, 22, 16, 0, 1, 16, 0, 40, 80, 15, 77, 16, 0, 39, 15, 71, 16, 0, 64, 0, 0, 64, 0, 65, 0, 65, 17, 65, 17, 65, 17, 65, 17, 65, 17, 65, 0, 10, 0, 14, 0, 5, 0, 3, 0, 3, 15, 73, 0, 6, 0, 6, 15, 73, 0, 8, 0, 9, 0, 9, 15, 71, 0, 9, 71, 0, 7, 0, 12, 0, 11, 0, 13, 0, 4, 0, 5, 0, 78, 0, 64, 0, 65, 0, 0 }; #endif #if YYDEBUG != 0 static const short yyrline[] = { 0, 173, 174, 179, 183, 188, 193, 205, 209, 244, 256, 268, 272, 276, 283, 290, 297, 302, 309, 314, 321, 328, 332, 339, 350, 354, 359, 366, 370, 385, 389, 396, 403, 408, 413, 417, 421, 431, 446, 460, 466, 485, 492, 538, 555, 576, 581, 587, 599, 612, 616, 620, 624, 628, 642, 646, 650, 657, 662, 667, 672, 677, 681, 686, 692, 700, 704, 708, 715, 719, 723, 730, 767, 771, 798 }; #endif #if YYDEBUG != 0 static const char * const yytname[] = { "$","error","$undefined.","A","B", "C","E","F","I","L","N","P","R","S","T","SP","CRLF","COMMA","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","STRING", "NUMBER","cmd_list","cmd","rcmd","username","password","byte_size","host_port", "form_code","type_code","struct_code","mode_code","pathname","pathstring","octal_number", "check_login", NULL }; #endif static const short yyr1[] = { 0, 66, 66, 66, 67, 67, 67, 67, 67, 67, 67, 67, 67, 67, 67, 67, 67, 67, 67, 67, 67, 67, 67, 67, 67, 67, 67, 67, 67, 67, 67, 67, 67, 67, 67, 67, 67, 67, 67, 67, 67, 67, 67, 67, 67, 67, 67, 68, 68, 69, 70, 70, 71, 72, 73, 73, 73, 74, 74, 74, 74, 74, 74, 74, 74, 75, 75, 75, 76, 76, 76, 77, 78, 79, 80 }; static const short yyr2[] = { 0, 0, 2, 2, 4, 4, 4, 3, 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, 4, 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 }; static const short yydefact[] = { 1, 0, 0, 0, 0, 0, 0, 74, 0, 0, 0, 74, 74, 74, 0, 0, 74, 0, 0, 74, 74, 74, 74, 0, 74, 0, 0, 74, 74, 74, 74, 74, 0, 74, 74, 2, 3, 46, 0, 50, 45, 0, 0, 0, 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, 49, 0, 51, 0, 0, 0, 7, 57, 59, 61, 62, 0, 65, 67, 66, 0, 69, 70, 68, 0, 0, 0, 0, 0, 52, 0, 0, 72, 0, 71, 0, 0, 25, 0, 18, 0, 16, 0, 74, 0, 74, 0, 0, 0, 0, 32, 33, 0, 0, 0, 4, 5, 0, 6, 0, 0, 0, 64, 8, 9, 10, 0, 0, 0, 0, 11, 48, 0, 23, 0, 0, 0, 0, 0, 34, 0, 0, 39, 0, 0, 28, 0, 0, 0, 0, 0, 0, 56, 54, 55, 58, 60, 63, 13, 14, 15, 0, 47, 22, 26, 19, 17, 0, 0, 36, 0, 0, 20, 30, 31, 41, 43, 44, 0, 0, 35, 73, 0, 40, 0, 0, 0, 37, 0, 0, 12, 0, 0, 38, 0, 0, 0, 53, 0, 0 }; static const short yydefgoto[] = { 1, 35, 36, 73, 75, 97, 77, 162, 83, 87, 91, 100, 101, 189, 42 }; static const short yypact[] = {-32768, 36, -12, -3, 5, 6, 27,-32768, 41, 56, 81, -32768,-32768,-32768, 96, 97,-32768, 98, 86,-32768,-32768, -32768,-32768, 99, 92, 3, 100,-32768,-32768,-32768,-32768, -32768, 101,-32768,-32768,-32768,-32768,-32768, 51, 54,-32768, 55, 103, 64, 93, 4, 106, 107, 108, 59, 60, 111, 63,-32768, 113, 10, 18, 29, -46,-32768, 115, 68,-32768,-32768, 118, 119, 120, 121, 123,-32768, 124, 125,-32768, 126,-32768, 127, 128, 130,-32768, 129, 132, -32768, -8, 133,-32768,-32768,-32768, 134,-32768,-32768,-32768, 135, 63, 63, 63, 53,-32768, 136, 63,-32768, 137, -32768, 63, 63,-32768, 63,-32768, 71,-32768, 83,-32768, 91,-32768, 63, 138, 63, 63,-32768,-32768, 63, 63, 63,-32768,-32768, 76,-32768, 87, 87, 60,-32768,-32768, -32768,-32768, 139, 140, 141, 146,-32768,-32768, 143,-32768, 144, 145, 147, 148, 84,-32768, 94, 102,-32768, 150, 152,-32768, 153, 154, 155, 156, 157, 149,-32768,-32768, -32768,-32768,-32768,-32768,-32768,-32768,-32768, 159,-32768,-32768, -32768,-32768,-32768, 160, 110,-32768, 161, 110,-32768,-32768, -32768,-32768,-32768,-32768, 114, 116,-32768,-32768, 162,-32768, 165, 166, 168,-32768, 63, 117,-32768, 169, 170,-32768, 131, 171, 142,-32768, 186,-32768 }; static const short yypgoto[] = {-32768, -32768,-32768,-32768,-32768, -77,-32768, 35,-32768,-32768,-32768, -92,-32768, 11, 19 }; #define YYLAST 207 static const short yytable[] = { 133, 134, 135, 109, 37, 129, 139, 128, 88, 89, 141, 142, 38, 143, 110, 111, 112, 90, 61, 62, 39, 151, 40, 153, 154, 103, 104, 155, 156, 157, 46, 47, 48, 105, 106, 51, 205, 2, 54, 55, 56, 57, 41, 60, 107, 108, 64, 65, 66, 67, 68, 164, 70, 71, 3, 4, 43, 96, 5, 6, 7, 8, 9, 10, 11, 12, 13, 79, 136, 137, 80, 44, 81, 82, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 159, 32, 33, 34, 45, 160, 145, 146, 84, 161, 53, 198, 85, 86, 148, 149, 59, 175, 176, 49, 50, 52, 58, 72, 63, 69, 74, 78, 76, 92, 93, 94, 95, 96, 98, 99, 102, 147, 113, 150, 114, 115, 116, 144, 117, 118, 119, 120, 121, 158, 122, 123, 126, 124, 125, 127, 174, 130, 131, 132, 138, 140, 152, 165, 166, 167, 168, 169, 170, 171, 163, 172, 173, 178, 185, 177, 179, 180, 181, 182, 183, 184, 186, 188, 187, 190, 194, 192, 195, 193, 199, 196, 197, 200, 206, 201, 203, 191, 0, 0, 0, 0, 0, 0, 202, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 204 }; static const short yycheck[] = { 92, 93, 94, 49, 16, 82, 98, 15, 4, 5, 102, 103, 15, 105, 60, 61, 62, 13, 15, 16, 15, 113, 16, 115, 116, 15, 16, 119, 120, 121, 11, 12, 13, 15, 16, 16, 0, 1, 19, 20, 21, 22, 15, 24, 15, 16, 27, 28, 29, 30, 31, 128, 33, 34, 18, 19, 15, 65, 22, 23, 24, 25, 26, 27, 28, 29, 30, 3, 15, 16, 6, 15, 8, 9, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 5, 57, 58, 59, 15, 10, 15, 16, 7, 14, 16, 195, 11, 12, 15, 16, 16, 15, 16, 15, 15, 15, 15, 64, 16, 16, 64, 16, 65, 15, 15, 15, 65, 65, 15, 64, 15, 110, 15, 112, 64, 15, 15, 64, 16, 16, 15, 15, 15, 65, 16, 16, 15, 17, 16, 15, 64, 16, 16, 16, 16, 16, 16, 16, 16, 16, 12, 16, 16, 16, 127, 16, 16, 15, 17, 65, 16, 16, 16, 16, 16, 16, 15, 65, 16, 16, 16, 65, 15, 65, 65, 17, 16, 16, 0, 17, 17, 178, -1, -1, -1, -1, -1, -1, 65, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 65 }; /* -*-C-*- Note some compilers choke on comments on `#line' lines. */ #line 3 "/usr/share/bison.simple" /* Skeleton output parser for bison, Copyright (C) 1984, 1989, 1990 Free Software Foundation, Inc. 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, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ /* As a special exception, when this file is copied by Bison into a Bison output file, you may use that output file without restriction. This special exception was added by the Free Software Foundation in version 1.24 of Bison. */ #ifndef alloca #ifdef __GNUC__ #define alloca __builtin_alloca #else /* not GNU C. */ #if (!defined (__STDC__) && defined (sparc)) || defined (__sparc__) || defined (__sparc) || defined (__sgi) #include #else /* not sparc */ #if defined (MSDOS) && !defined (__TURBOC__) #include #else /* not MSDOS, or __TURBOC__ */ #if defined(_AIX) #include #pragma alloca #else /* not MSDOS, __TURBOC__, or _AIX */ #ifdef __hpux #ifdef __cplusplus extern "C" { void *alloca (unsigned int); }; #else /* not __cplusplus */ void *alloca (); #endif /* not __cplusplus */ #endif /* __hpux */ #endif /* not _AIX */ #endif /* not MSDOS, or __TURBOC__ */ #endif /* not sparc. */ #endif /* not GNU C. */ #endif /* alloca not defined. */ /* This is the parser code that is written into each bison parser when the %semantic_parser declaration is not specified in the grammar. It was written by Richard Stallman by simplifying the hairy parser used when %semantic_parser is specified. */ /* Note: there must be only one dollar sign in this file. It is replaced by the list of actions, each action as one case of the switch. */ #define yyerrok (yyerrstatus = 0) #define yyclearin (yychar = YYEMPTY) #define YYEMPTY -2 #define YYEOF 0 #define YYACCEPT return(0) #define YYABORT return(1) #define YYERROR goto yyerrlab1 /* Like YYERROR except do call yyerror. This remains here temporarily to ease the transition to the new meaning of YYERROR, for GCC. Once GCC version 2 has supplanted version 1, this can go. */ #define YYFAIL goto yyerrlab #define YYRECOVERING() (!!yyerrstatus) #define YYBACKUP(token, value) \ do \ if (yychar == YYEMPTY && yylen == 1) \ { yychar = (token), yylval = (value); \ yychar1 = YYTRANSLATE (yychar); \ YYPOPSTACK; \ goto yybackup; \ } \ else \ { yyerror ("syntax error: cannot back up"); YYERROR; } \ while (0) #define YYTERROR 1 #define YYERRCODE 256 #ifndef YYPURE #define YYLEX yylex() #endif #ifdef YYPURE #ifdef YYLSP_NEEDED #ifdef YYLEX_PARAM #define YYLEX yylex(&yylval, &yylloc, YYLEX_PARAM) #else #define YYLEX yylex(&yylval, &yylloc) #endif #else /* not YYLSP_NEEDED */ #ifdef YYLEX_PARAM #define YYLEX yylex(&yylval, YYLEX_PARAM) #else #define YYLEX yylex(&yylval) #endif #endif /* not YYLSP_NEEDED */ #endif /* If nonreentrant, generate the variables here */ #ifndef YYPURE int yychar; /* the lookahead symbol */ YYSTYPE yylval; /* the semantic value of the */ /* lookahead symbol */ #ifdef YYLSP_NEEDED YYLTYPE yylloc; /* location data for the lookahead */ /* symbol */ #endif int yynerrs; /* number of parse errors so far */ #endif /* not YYPURE */ #if YYDEBUG != 0 int yydebug; /* nonzero means print parse trace */ /* Since this is uninitialized, it does not stop multiple parsers from coexisting. */ #endif /* YYINITDEPTH indicates the initial size of the parser's stacks */ #ifndef YYINITDEPTH #define YYINITDEPTH 200 #endif /* YYMAXDEPTH is the maximum size the stacks can grow to (effective only if the built-in stack extension method is used). */ #if YYMAXDEPTH == 0 #undef YYMAXDEPTH #endif #ifndef YYMAXDEPTH #define YYMAXDEPTH 10000 #endif /* Prevent warning if -Wstrict-prototypes. */ #ifdef __GNUC__ int yyparse (void); #endif #if __GNUC__ > 1 /* GNU C and GNU C++ define this. */ #define __yy_memcpy(FROM,TO,COUNT) __builtin_memcpy(TO,FROM,COUNT) #else /* not GNU C or C++ */ #ifndef __cplusplus /* This is the most reliable way to avoid incompatibilities in available built-in functions on various systems. */ static void __yy_memcpy (from, to, count) char *from; char *to; int count; { register char *f = from; register char *t = to; register int i = count; while (i-- > 0) *t++ = *f++; } #else /* __cplusplus */ /* This is the most reliable way to avoid incompatibilities in available built-in functions on various systems. */ static void __yy_memcpy (char *from, char *to, int count) { register char *f = from; register char *t = to; register int i = count; while (i-- > 0) *t++ = *f++; } #endif #endif #line 192 "/usr/share/bison.simple" /* The user can define YYPARSE_PARAM as the name of an argument to be passed into yyparse. The argument should have type void *. It should actually point to an object. Grammar actions can access the variable by casting it to the proper pointer type. */ #ifdef YYPARSE_PARAM #define YYPARSE_PARAM_DECL void *YYPARSE_PARAM; #else #define YYPARSE_PARAM #define YYPARSE_PARAM_DECL #endif int yyparse(YYPARSE_PARAM) YYPARSE_PARAM_DECL { register int yystate; register int yyn; register short *yyssp; register YYSTYPE *yyvsp; int yyerrstatus; /* number of tokens to shift before error messages enabled */ int yychar1 = 0; /* lookahead token as an internal (translated) token number */ short yyssa[YYINITDEPTH]; /* the state stack */ YYSTYPE yyvsa[YYINITDEPTH]; /* the semantic value stack */ short *yyss = yyssa; /* refer to the stacks thru separate pointers */ YYSTYPE *yyvs = yyvsa; /* to allow yyoverflow to reallocate them elsewhere */ #ifdef YYLSP_NEEDED YYLTYPE yylsa[YYINITDEPTH]; /* the location stack */ YYLTYPE *yyls = yylsa; YYLTYPE *yylsp; #define YYPOPSTACK (yyvsp--, yyssp--, yylsp--) #else #define YYPOPSTACK (yyvsp--, yyssp--) #endif int yystacksize = YYINITDEPTH; #ifdef YYPURE int yychar; YYSTYPE yylval; int yynerrs; #ifdef YYLSP_NEEDED YYLTYPE yylloc; #endif #endif YYSTYPE yyval; /* the variable used to return */ /* semantic values from the action */ /* routines */ int yylen; #if YYDEBUG != 0 if (yydebug) fprintf(stderr, "Starting parse\n"); #endif yystate = 0; yyerrstatus = 0; yynerrs = 0; yychar = YYEMPTY; /* Cause a token to be read. */ /* Initialize stack pointers. Waste one element of value and location stack so that they stay on the same level as the state stack. The wasted elements are never initialized. */ yyssp = yyss - 1; yyvsp = yyvs; #ifdef YYLSP_NEEDED yylsp = yyls; #endif /* Push a new state, which is found in yystate . */ /* In all cases, when you get here, the value and location stacks have just been pushed. so pushing a state here evens the stacks. */ yynewstate: *++yyssp = yystate; if (yyssp >= yyss + yystacksize - 1) { /* Give user a chance to reallocate the stack */ /* Use copies of these so that the &'s don't force the real ones into memory. */ YYSTYPE *yyvs1 = yyvs; short *yyss1 = yyss; #ifdef YYLSP_NEEDED YYLTYPE *yyls1 = yyls; #endif /* Get the current used size of the three stacks, in elements. */ int size = yyssp - yyss + 1; #ifdef yyoverflow /* Each stack pointer address is followed by the size of the data in use in that stack, in bytes. */ #ifdef YYLSP_NEEDED /* This used to be a conditional around just the two extra args, but that might be undefined if yyoverflow is a macro. */ yyoverflow("parser stack overflow", &yyss1, size * sizeof (*yyssp), &yyvs1, size * sizeof (*yyvsp), &yyls1, size * sizeof (*yylsp), &yystacksize); #else yyoverflow("parser stack overflow", &yyss1, size * sizeof (*yyssp), &yyvs1, size * sizeof (*yyvsp), &yystacksize); #endif yyss = yyss1; yyvs = yyvs1; #ifdef YYLSP_NEEDED yyls = yyls1; #endif #else /* no yyoverflow */ /* Extend the stack our own way. */ if (yystacksize >= YYMAXDEPTH) { yyerror("parser stack overflow"); return 2; } yystacksize *= 2; if (yystacksize > YYMAXDEPTH) yystacksize = YYMAXDEPTH; yyss = (short *) alloca (yystacksize * sizeof (*yyssp)); __yy_memcpy ((char *)yyss1, (char *)yyss, size * sizeof (*yyssp)); yyvs = (YYSTYPE *) alloca (yystacksize * sizeof (*yyvsp)); __yy_memcpy ((char *)yyvs1, (char *)yyvs, size * sizeof (*yyvsp)); #ifdef YYLSP_NEEDED yyls = (YYLTYPE *) alloca (yystacksize * sizeof (*yylsp)); __yy_memcpy ((char *)yyls1, (char *)yyls, size * sizeof (*yylsp)); #endif #endif /* no yyoverflow */ yyssp = yyss + size - 1; yyvsp = yyvs + size - 1; #ifdef YYLSP_NEEDED yylsp = yyls + size - 1; #endif #if YYDEBUG != 0 if (yydebug) fprintf(stderr, "Stack size increased to %d\n", yystacksize); #endif if (yyssp >= yyss + yystacksize - 1) YYABORT; } #if YYDEBUG != 0 if (yydebug) fprintf(stderr, "Entering state %d\n", yystate); #endif goto yybackup; yybackup: /* Do appropriate processing given the current state. */ /* Read a lookahead token if we need one and don't already have one. */ /* yyresume: */ /* First try to decide what to do without reference to lookahead token. */ yyn = yypact[yystate]; if (yyn == YYFLAG) goto yydefault; /* Not known => get a lookahead token if don't already have one. */ /* yychar is either YYEMPTY or YYEOF or a valid token in external form. */ if (yychar == YYEMPTY) { #if YYDEBUG != 0 if (yydebug) fprintf(stderr, "Reading a token: "); #endif yychar = YYLEX; } /* Convert token to internal form (in yychar1) for indexing tables with */ if (yychar <= 0) /* This means end of input. */ { yychar1 = 0; yychar = YYEOF; /* Don't call YYLEX any more */ #if YYDEBUG != 0 if (yydebug) fprintf(stderr, "Now at end of input.\n"); #endif } else { yychar1 = YYTRANSLATE(yychar); #if YYDEBUG != 0 if (yydebug) { fprintf (stderr, "Next token is %d (%s", yychar, yytname[yychar1]); /* Give the individual parser a way to print the precise meaning of a token, for further debugging info. */ #ifdef YYPRINT YYPRINT (stderr, yychar, yylval); #endif fprintf (stderr, ")\n"); } #endif } yyn += yychar1; if (yyn < 0 || yyn > YYLAST || yycheck[yyn] != yychar1) goto yydefault; yyn = yytable[yyn]; /* yyn is what to do for this token type in this state. Negative => reduce, -yyn is rule number. Positive => shift, yyn is new state. New state is final state => don't bother to shift, just return success. 0, or most negative number => error. */ if (yyn < 0) { if (yyn == YYFLAG) goto yyerrlab; yyn = -yyn; goto yyreduce; } else if (yyn == 0) goto yyerrlab; if (yyn == YYFINAL) YYACCEPT; /* Shift the lookahead token. */ #if YYDEBUG != 0 if (yydebug) fprintf(stderr, "Shifting token %d (%s), ", yychar, yytname[yychar1]); #endif /* Discard the token being shifted unless it is eof. */ if (yychar != YYEOF) yychar = YYEMPTY; *++yyvsp = yylval; #ifdef YYLSP_NEEDED *++yylsp = yylloc; #endif /* count tokens shifted since error; after three, turn off error status. */ if (yyerrstatus) yyerrstatus--; yystate = yyn; goto yynewstate; /* Do the default action for the current state. */ yydefault: yyn = yydefact[yystate]; if (yyn == 0) goto yyerrlab; /* Do a reduction. yyn is the number of a rule to reduce with. */ yyreduce: yylen = yyr2[yyn]; if (yylen > 0) yyval = yyvsp[1-yylen]; /* implement default value of the action */ #if YYDEBUG != 0 if (yydebug) { int i; fprintf (stderr, "Reducing via rule %d (line %d), ", yyn, yyrline[yyn]); /* Print the symbols being reduced, and their result. */ for (i = yyprhs[yyn]; yyrhs[i] > 0; i++) fprintf (stderr, "%s ", yytname[yyrhs[i]]); fprintf (stderr, " -> %s\n", yytname[yyr1[yyn]]); } #endif switch (yyn) { case 2: #line 175 "/home/gd4/gnu/inetutils/ftpd/ftpcmd.y" { fromname = (char *) 0; restart_point = (off_t) 0; ; break;} case 4: #line 184 "/home/gd4/gnu/inetutils/ftpd/ftpcmd.y" { user(yyvsp[-1].s); free(yyvsp[-1].s); ; break;} case 5: #line 189 "/home/gd4/gnu/inetutils/ftpd/ftpcmd.y" { pass(yyvsp[-1].s); free(yyvsp[-1].s); ; break;} case 6: #line 194 "/home/gd4/gnu/inetutils/ftpd/ftpcmd.y" { usedefault = 0; if (pdata >= 0) { (void) close(pdata); pdata = -1; } reply(200, "PORT command successful."); ; break;} case 7: #line 206 "/home/gd4/gnu/inetutils/ftpd/ftpcmd.y" { passive(); ; break;} case 8: #line 210 "/home/gd4/gnu/inetutils/ftpd/ftpcmd.y" { switch (cmd_type) { case TYPE_A: if (cmd_form == FORM_N) { reply(200, "Type set to A."); type = cmd_type; form = cmd_form; } else reply(504, "Form must be N."); break; case TYPE_E: reply(504, "Type E not implemented."); break; case TYPE_I: reply(200, "Type set to I."); type = cmd_type; break; case TYPE_L: #if defined (NBBY) && NBBY == 8 if (cmd_bytesz == 8) { reply(200, "Type set to L (byte size 8)."); type = cmd_type; } else reply(504, "Byte size must be 8."); #else /* NBBY == 8 */ UNIMPLEMENTED for NBBY != 8 #endif /* NBBY == 8 */ } ; break;} case 9: #line 245 "/home/gd4/gnu/inetutils/ftpd/ftpcmd.y" { switch (yyvsp[-1].i) { case STRU_F: reply(200, "STRU F ok."); break; default: reply(504, "Unimplemented STRU type."); } ; break;} case 10: #line 257 "/home/gd4/gnu/inetutils/ftpd/ftpcmd.y" { switch (yyvsp[-1].i) { case MODE_S: reply(200, "MODE S ok."); break; default: reply(502, "Unimplemented MODE type."); } ; break;} case 11: #line 269 "/home/gd4/gnu/inetutils/ftpd/ftpcmd.y" { reply(202, "ALLO command ignored."); ; break;} case 12: #line 273 "/home/gd4/gnu/inetutils/ftpd/ftpcmd.y" { reply(202, "ALLO command ignored."); ; break;} case 13: #line 277 "/home/gd4/gnu/inetutils/ftpd/ftpcmd.y" { if (yyvsp[-3].i && yyvsp[-1].s != NULL) retrieve((char *) 0, yyvsp[-1].s); if (yyvsp[-1].s != NULL) free(yyvsp[-1].s); ; break;} case 14: #line 284 "/home/gd4/gnu/inetutils/ftpd/ftpcmd.y" { if (yyvsp[-3].i && yyvsp[-1].s != NULL) store(yyvsp[-1].s, "w", 0); if (yyvsp[-1].s != NULL) free(yyvsp[-1].s); ; break;} case 15: #line 291 "/home/gd4/gnu/inetutils/ftpd/ftpcmd.y" { if (yyvsp[-3].i && yyvsp[-1].s != NULL) store(yyvsp[-1].s, "a", 0); if (yyvsp[-1].s != NULL) free(yyvsp[-1].s); ; break;} case 16: #line 298 "/home/gd4/gnu/inetutils/ftpd/ftpcmd.y" { if (yyvsp[-1].i) send_file_list("."); ; break;} case 17: #line 303 "/home/gd4/gnu/inetutils/ftpd/ftpcmd.y" { if (yyvsp[-3].i && yyvsp[-1].s != NULL) send_file_list(yyvsp[-1].s); if (yyvsp[-1].s != NULL) free(yyvsp[-1].s); ; break;} case 18: #line 310 "/home/gd4/gnu/inetutils/ftpd/ftpcmd.y" { if (yyvsp[-1].i) retrieve("/bin/ls -lgA", ""); ; break;} case 19: #line 315 "/home/gd4/gnu/inetutils/ftpd/ftpcmd.y" { if (yyvsp[-3].i && yyvsp[-1].s != NULL) retrieve("/bin/ls -lgA %s", yyvsp[-1].s); if (yyvsp[-1].s != NULL) free(yyvsp[-1].s); ; break;} case 20: #line 322 "/home/gd4/gnu/inetutils/ftpd/ftpcmd.y" { if (yyvsp[-3].i && yyvsp[-1].s != NULL) statfilecmd(yyvsp[-1].s); if (yyvsp[-1].s != NULL) free(yyvsp[-1].s); ; break;} case 21: #line 329 "/home/gd4/gnu/inetutils/ftpd/ftpcmd.y" { statcmd(); ; break;} case 22: #line 333 "/home/gd4/gnu/inetutils/ftpd/ftpcmd.y" { if (yyvsp[-3].i && yyvsp[-1].s != NULL) delete(yyvsp[-1].s); if (yyvsp[-1].s != NULL) free(yyvsp[-1].s); ; break;} case 23: #line 340 "/home/gd4/gnu/inetutils/ftpd/ftpcmd.y" { if (fromname) { renamecmd(fromname, yyvsp[-1].s); free(fromname); fromname = (char *) 0; } else { reply(503, "Bad sequence of commands."); } free(yyvsp[-1].s); ; break;} case 24: #line 351 "/home/gd4/gnu/inetutils/ftpd/ftpcmd.y" { reply(225, "ABOR command successful."); ; break;} case 25: #line 355 "/home/gd4/gnu/inetutils/ftpd/ftpcmd.y" { if (yyvsp[-1].i) cwd(pw->pw_dir); ; break;} case 26: #line 360 "/home/gd4/gnu/inetutils/ftpd/ftpcmd.y" { if (yyvsp[-3].i && yyvsp[-1].s != NULL) cwd(yyvsp[-1].s); if (yyvsp[-1].s != NULL) free(yyvsp[-1].s); ; break;} case 27: #line 367 "/home/gd4/gnu/inetutils/ftpd/ftpcmd.y" { help(cmdtab, (char *) 0); ; break;} case 28: #line 371 "/home/gd4/gnu/inetutils/ftpd/ftpcmd.y" { char *cp = yyvsp[-1].s; if (strncasecmp(cp, "SITE", 4) == 0) { cp = yyvsp[-1].s + 4; if (*cp == ' ') cp++; if (*cp) help(sitetab, cp); else help(sitetab, (char *) 0); } else help(cmdtab, yyvsp[-1].s); ; break;} case 29: #line 386 "/home/gd4/gnu/inetutils/ftpd/ftpcmd.y" { reply(200, "NOOP command successful."); ; break;} case 30: #line 390 "/home/gd4/gnu/inetutils/ftpd/ftpcmd.y" { if (yyvsp[-3].i && yyvsp[-1].s != NULL) makedir(yyvsp[-1].s); if (yyvsp[-1].s != NULL) free(yyvsp[-1].s); ; break;} case 31: #line 397 "/home/gd4/gnu/inetutils/ftpd/ftpcmd.y" { if (yyvsp[-3].i && yyvsp[-1].s != NULL) removedir(yyvsp[-1].s); if (yyvsp[-1].s != NULL) free(yyvsp[-1].s); ; break;} case 32: #line 404 "/home/gd4/gnu/inetutils/ftpd/ftpcmd.y" { if (yyvsp[-1].i) pwd(); ; break;} case 33: #line 409 "/home/gd4/gnu/inetutils/ftpd/ftpcmd.y" { if (yyvsp[-1].i) cwd(".."); ; break;} case 34: #line 414 "/home/gd4/gnu/inetutils/ftpd/ftpcmd.y" { help(sitetab, (char *) 0); ; break;} case 35: #line 418 "/home/gd4/gnu/inetutils/ftpd/ftpcmd.y" { help(sitetab, yyvsp[-1].s); ; break;} case 36: #line 422 "/home/gd4/gnu/inetutils/ftpd/ftpcmd.y" { int oldmask; if (yyvsp[-1].i) { oldmask = umask(0); (void) umask(oldmask); reply(200, "Current UMASK is %03o", oldmask); } ; break;} case 37: #line 432 "/home/gd4/gnu/inetutils/ftpd/ftpcmd.y" { int oldmask; if (yyvsp[-3].i) { if ((yyvsp[-1].i == -1) || (yyvsp[-1].i > 0777)) { reply(501, "Bad UMASK value"); } else { oldmask = umask(yyvsp[-1].i); reply(200, "UMASK set to %03o (was %03o)", yyvsp[-1].i, oldmask); } } ; break;} case 38: #line 447 "/home/gd4/gnu/inetutils/ftpd/ftpcmd.y" { if (yyvsp[-5].i && (yyvsp[-1].s != NULL)) { if (yyvsp[-3].i > 0777) reply(501, "CHMOD: Mode value must be between 0 and 0777"); else if (chmod(yyvsp[-1].s, yyvsp[-3].i) < 0) perror_reply(550, yyvsp[-1].s); else reply(200, "CHMOD command successful."); } if (yyvsp[-1].s != NULL) free(yyvsp[-1].s); ; break;} case 39: #line 461 "/home/gd4/gnu/inetutils/ftpd/ftpcmd.y" { reply(200, "Current IDLE time limit is %d seconds; max %d", timeout, maxtimeout); ; break;} case 40: #line 467 "/home/gd4/gnu/inetutils/ftpd/ftpcmd.y" { if (!guest && yyvsp[-1].i == 0) { timeout = 0; alarm (0); reply (200, "IDLE time limit disabled"); } if (yyvsp[-1].i < 30 || yyvsp[-1].i > maxtimeout) { reply(501, "Maximum IDLE time must be between 30 and %d seconds", maxtimeout); } else { timeout = yyvsp[-1].i; (void) alarm((unsigned) timeout); reply(200, "Maximum IDLE time set to %d seconds", timeout); } ; break;} case 41: #line 486 "/home/gd4/gnu/inetutils/ftpd/ftpcmd.y" { if (yyvsp[-3].i && yyvsp[-1].s != NULL) store(yyvsp[-1].s, "w", 1); if (yyvsp[-1].s != NULL) free(yyvsp[-1].s); ; break;} case 42: #line 493 "/home/gd4/gnu/inetutils/ftpd/ftpcmd.y" { char *type; /* The official rfc-defined os type. */ char *version = 0; /* A more specific type. */ #ifdef HAVE_UNAME struct utsname u; if (uname (&u) == 0) { version = malloc (strlen (u.sysname) + 1 + strlen (u.release) + 1); if (version) sprintf (version, "%s %s", u.sysname, u.release); } #else #ifdef BSD version = "BSD"; #endif #endif #ifdef unix type = "UNIX"; #else type = "UNKNOWN"; #endif if (version) reply(215, "%s Type: L%d Version: %s", type, NBBY, version); else reply(215, "%s Type: L%d", type, NBBY); #ifdef HAVE_UNAME if (version) free (version); #endif ; break;} case 43: #line 539 "/home/gd4/gnu/inetutils/ftpd/ftpcmd.y" { if (yyvsp[-3].i && yyvsp[-1].s != NULL) sizecmd(yyvsp[-1].s); if (yyvsp[-1].s != NULL) free(yyvsp[-1].s); ; break;} case 44: #line 556 "/home/gd4/gnu/inetutils/ftpd/ftpcmd.y" { if (yyvsp[-3].i && yyvsp[-1].s != NULL) { struct stat stbuf; if (stat(yyvsp[-1].s, &stbuf) < 0) reply(550, "%s: %s", yyvsp[-1].s, strerror(errno)); else if (!S_ISREG(stbuf.st_mode)) { reply(550, "%s: not a plain file.", yyvsp[-1].s); } else { struct tm *t; t = gmtime(&stbuf.st_mtime); reply(213, "19%02d%02d%02d%02d%02d%02d", t->tm_year, t->tm_mon+1, t->tm_mday, t->tm_hour, t->tm_min, t->tm_sec); } } if (yyvsp[-1].s != NULL) free(yyvsp[-1].s); ; break;} case 45: #line 577 "/home/gd4/gnu/inetutils/ftpd/ftpcmd.y" { reply(221, "Goodbye."); dologout(0); ; break;} case 46: #line 582 "/home/gd4/gnu/inetutils/ftpd/ftpcmd.y" { yyerrok; ; break;} case 47: #line 588 "/home/gd4/gnu/inetutils/ftpd/ftpcmd.y" { char *renamefrom(); restart_point = (off_t) 0; if (yyvsp[-3].i && yyvsp[-1].s) { fromname = renamefrom(yyvsp[-1].s); if (fromname == (char *) 0 && yyvsp[-1].s) { free(yyvsp[-1].s); } } ; break;} case 48: #line 600 "/home/gd4/gnu/inetutils/ftpd/ftpcmd.y" { fromname = (char *) 0; restart_point = yyvsp[-1].i; /* XXX $3 is only "int" */ reply(350, (sizeof(restart_point) > sizeof(long) ? "Restarting at %qd. %s" : "Restarting at %ld. %s"), restart_point, "Send STORE or RETRIEVE to initiate transfer."); ; break;} case 50: #line 617 "/home/gd4/gnu/inetutils/ftpd/ftpcmd.y" { yyval.s = (char *)calloc(1, sizeof(char)); ; break;} case 53: #line 630 "/home/gd4/gnu/inetutils/ftpd/ftpcmd.y" { char *a, *p; a = (char *)&data_dest.sin_addr; a[0] = yyvsp[-10].i; a[1] = yyvsp[-8].i; a[2] = yyvsp[-6].i; a[3] = yyvsp[-4].i; p = (char *)&data_dest.sin_port; p[0] = yyvsp[-2].i; p[1] = yyvsp[0].i; data_dest.sin_family = AF_INET; ; break;} case 54: #line 643 "/home/gd4/gnu/inetutils/ftpd/ftpcmd.y" { yyval.i = FORM_N; ; break;} case 55: #line 647 "/home/gd4/gnu/inetutils/ftpd/ftpcmd.y" { yyval.i = FORM_T; ; break;} case 56: #line 651 "/home/gd4/gnu/inetutils/ftpd/ftpcmd.y" { yyval.i = FORM_C; ; break;} case 57: #line 658 "/home/gd4/gnu/inetutils/ftpd/ftpcmd.y" { cmd_type = TYPE_A; cmd_form = FORM_N; ; break;} case 58: #line 663 "/home/gd4/gnu/inetutils/ftpd/ftpcmd.y" { cmd_type = TYPE_A; cmd_form = yyvsp[0].i; ; break;} case 59: #line 668 "/home/gd4/gnu/inetutils/ftpd/ftpcmd.y" { cmd_type = TYPE_E; cmd_form = FORM_N; ; break;} case 60: #line 673 "/home/gd4/gnu/inetutils/ftpd/ftpcmd.y" { cmd_type = TYPE_E; cmd_form = yyvsp[0].i; ; break;} case 61: #line 678 "/home/gd4/gnu/inetutils/ftpd/ftpcmd.y" { cmd_type = TYPE_I; ; break;} case 62: #line 682 "/home/gd4/gnu/inetutils/ftpd/ftpcmd.y" { cmd_type = TYPE_L; cmd_bytesz = NBBY; ; break;} case 63: #line 687 "/home/gd4/gnu/inetutils/ftpd/ftpcmd.y" { cmd_type = TYPE_L; cmd_bytesz = yyvsp[0].i; ; break;} case 64: #line 693 "/home/gd4/gnu/inetutils/ftpd/ftpcmd.y" { cmd_type = TYPE_L; cmd_bytesz = yyvsp[0].i; ; break;} case 65: #line 701 "/home/gd4/gnu/inetutils/ftpd/ftpcmd.y" { yyval.i = STRU_F; ; break;} case 66: #line 705 "/home/gd4/gnu/inetutils/ftpd/ftpcmd.y" { yyval.i = STRU_R; ; break;} case 67: #line 709 "/home/gd4/gnu/inetutils/ftpd/ftpcmd.y" { yyval.i = STRU_P; ; break;} case 68: #line 716 "/home/gd4/gnu/inetutils/ftpd/ftpcmd.y" { yyval.i = MODE_S; ; break;} case 69: #line 720 "/home/gd4/gnu/inetutils/ftpd/ftpcmd.y" { yyval.i = MODE_B; ; break;} case 70: #line 724 "/home/gd4/gnu/inetutils/ftpd/ftpcmd.y" { yyval.i = MODE_C; ; break;} case 71: #line 731 "/home/gd4/gnu/inetutils/ftpd/ftpcmd.y" { /* * Problem: this production is used for all pathname * processing, but only gives a 550 error reply. * This is a valid reply in some cases but not in others. */ if (logged_in && yyvsp[0].s && *yyvsp[0].s == '~') { glob_t gl; int flags = GLOB_NOCHECK; #ifdef GLOB_BRACE flags |= GLOB_BRACE; #endif #ifdef GLOB_QUOTE flags |= GLOB_QUOTE; #endif #ifdef GLOB_TILDE flags |= GLOB_TILDE; #endif memset(&gl, 0, sizeof(gl)); if (glob(yyvsp[0].s, flags, NULL, &gl) || gl.gl_pathc == 0) { reply(550, "not found"); yyval.s = NULL; } else { yyval.s = strdup(gl.gl_pathv[0]); } globfree(&gl); free(yyvsp[0].s); } else yyval.s = yyvsp[0].s; ; break;} case 73: #line 772 "/home/gd4/gnu/inetutils/ftpd/ftpcmd.y" { int ret, dec, multby, digit; /* * Convert a number that was read as decimal number * to what it would be if it had been read as octal. */ dec = yyvsp[0].i; multby = 1; ret = 0; while (dec) { digit = dec%10; if (digit > 7) { ret = -1; break; } ret += digit * multby; multby *= 8; dec /= 10; } yyval.i = ret; ; break;} case 74: #line 799 "/home/gd4/gnu/inetutils/ftpd/ftpcmd.y" { if (logged_in) yyval.i = 1; else { reply(530, "Please login with USER and PASS."); yyval.i = 0; } ; break;} } /* the action file gets copied in in place of this dollarsign */ #line 487 "/usr/share/bison.simple" yyvsp -= yylen; yyssp -= yylen; #ifdef YYLSP_NEEDED yylsp -= yylen; #endif #if YYDEBUG != 0 if (yydebug) { short *ssp1 = yyss - 1; fprintf (stderr, "state stack now"); while (ssp1 != yyssp) fprintf (stderr, " %d", *++ssp1); fprintf (stderr, "\n"); } #endif *++yyvsp = yyval; #ifdef YYLSP_NEEDED yylsp++; if (yylen == 0) { yylsp->first_line = yylloc.first_line; yylsp->first_column = yylloc.first_column; yylsp->last_line = (yylsp-1)->last_line; yylsp->last_column = (yylsp-1)->last_column; yylsp->text = 0; } else { yylsp->last_line = (yylsp+yylen-1)->last_line; yylsp->last_column = (yylsp+yylen-1)->last_column; } #endif /* Now "shift" the result of the reduction. Determine what state that goes to, based on the state we popped back to and the rule number reduced by. */ yyn = yyr1[yyn]; yystate = yypgoto[yyn - YYNTBASE] + *yyssp; if (yystate >= 0 && yystate <= YYLAST && yycheck[yystate] == *yyssp) yystate = yytable[yystate]; else yystate = yydefgoto[yyn - YYNTBASE]; goto yynewstate; yyerrlab: /* here on detecting error */ if (! yyerrstatus) /* If not already recovering from an error, report this error. */ { ++yynerrs; #ifdef YYERROR_VERBOSE yyn = yypact[yystate]; if (yyn > YYFLAG && yyn < YYLAST) { int size = 0; char *msg; int x, count; count = 0; /* Start X at -yyn if nec to avoid negative indexes in yycheck. */ for (x = (yyn < 0 ? -yyn : 0); x < (sizeof(yytname) / sizeof(char *)); x++) if (yycheck[x + yyn] == x) size += strlen(yytname[x]) + 15, count++; msg = (char *) malloc(size + 15); if (msg != 0) { strcpy(msg, "parse error"); if (count < 5) { count = 0; for (x = (yyn < 0 ? -yyn : 0); x < (sizeof(yytname) / sizeof(char *)); x++) if (yycheck[x + yyn] == x) { strcat(msg, count == 0 ? ", expecting `" : " or `"); strcat(msg, yytname[x]); strcat(msg, "'"); count++; } } yyerror(msg); free(msg); } else yyerror ("parse error; also virtual memory exceeded"); } else #endif /* YYERROR_VERBOSE */ yyerror("parse error"); } goto yyerrlab1; yyerrlab1: /* here on error raised explicitly by an action */ if (yyerrstatus == 3) { /* if just tried and failed to reuse lookahead token after an error, discard it. */ /* return failure if at end of input */ if (yychar == YYEOF) YYABORT; #if YYDEBUG != 0 if (yydebug) fprintf(stderr, "Discarding token %d (%s).\n", yychar, yytname[yychar1]); #endif yychar = YYEMPTY; } /* Else will try to reuse lookahead token after shifting the error token. */ yyerrstatus = 3; /* Each real token shifted decrements this */ goto yyerrhandle; yyerrdefault: /* current state does not do anything special for the error token. */ #if 0 /* This is wrong; only states that explicitly want error tokens should shift them. */ yyn = yydefact[yystate]; /* If its default is to accept any token, ok. Otherwise pop it.*/ if (yyn) goto yydefault; #endif yyerrpop: /* pop the current state because it cannot handle the error token */ if (yyssp == yyss) YYABORT; yyvsp--; yystate = *--yyssp; #ifdef YYLSP_NEEDED yylsp--; #endif #if YYDEBUG != 0 if (yydebug) { short *ssp1 = yyss - 1; fprintf (stderr, "Error: state stack now"); while (ssp1 != yyssp) fprintf (stderr, " %d", *++ssp1); fprintf (stderr, "\n"); } #endif yyerrhandle: yyn = yypact[yystate]; if (yyn == YYFLAG) goto yyerrdefault; yyn += YYTERROR; if (yyn < 0 || yyn > YYLAST || yycheck[yyn] != YYTERROR) goto yyerrdefault; yyn = yytable[yyn]; if (yyn < 0) { if (yyn == YYFLAG) goto yyerrpop; yyn = -yyn; goto yyreduce; } else if (yyn == 0) goto yyerrpop; if (yyn == YYFINAL) YYACCEPT; #if YYDEBUG != 0 if (yydebug) fprintf(stderr, "Shifting error token, "); #endif *++yyvsp = yylval; #ifdef YYLSP_NEEDED *++yylsp = yylloc; #endif yystate = yyn; goto yynewstate; } #line 809 "/home/gd4/gnu/inetutils/ftpd/ftpcmd.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 cmdtab[] = { /* In order defined in RFC 765 */ { "USER", USER, STR1, 1, " username" }, { "PASS", PASS, ZSTR1, 1, " 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, " b0, b1, b2, b3, b4" }, { "PASV", PASV, ARGS, 1, "(set server in passive mode)" }, { "TYPE", TYPE, ARGS, 1, " [ A | E | I | L ]" }, { "STRU", STRU, ARGS, 1, "(specify file structure)" }, { "MODE", MODE, ARGS, 1, "(specify transfer mode)" }, { "RETR", RETR, STR1, 1, " file-name" }, { "STOR", STOR, STR1, 1, " file-name" }, { "APPE", APPE, STR1, 1, " 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, 1, " offset (restart command)" }, { "RNFR", RNFR, STR1, 1, " file-name" }, { "RNTO", RNTO, STR1, 1, " file-name" }, { "ABOR", ABOR, ARGS, 1, "(abort operation)" }, { "DELE", DELE, STR1, 1, " file-name" }, { "CWD", CWD, OSTR, 1, "[ directory-name ]" }, { "XCWD", CWD, OSTR, 1, "[ directory-name ]" }, { "LIST", LIST, OSTR, 1, "[ path-name ]" }, { "NLST", NLST, OSTR, 1, "[ path-name ]" }, { "SITE", SITE, SITECMD, 1, "site-cmd [ arguments ]" }, { "SYST", SYST, ARGS, 1, "(get type of operating system)" }, { "STAT", STAT, OSTR, 1, "[ path-name ]" }, { "HELP", HELP, OSTR, 1, "[ ]" }, { "NOOP", NOOP, ARGS, 1, "" }, { "MKD", MKD, STR1, 1, " path-name" }, { "XMKD", MKD, STR1, 1, " path-name" }, { "RMD", RMD, STR1, 1, " path-name" }, { "XRMD", RMD, STR1, 1, " 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, " file-name" }, { "SIZE", SIZE, OSTR, 1, " path-name" }, { "MDTM", MDTM, OSTR, 1, " path-name" }, { NULL, 0, 0, 0, 0 } }; struct tab sitetab[] = { { "UMASK", UMASK, ARGS, 1, "[ umask ]" }, { "IDLE", IDLE, ARGS, 1, "[ maximum-idle-time ]" }, { "CHMOD", CHMOD, NSTR, 1, " mode file-name" }, { "HELP", HELP, OSTR, 1, "[ ]" }, { NULL, 0, 0, 0, 0 } }; static struct tab * lookup(p, cmd) struct tab *p; char *cmd; { for (; p->name != NULL; p++) if (strcmp(cmd, p->name) == 0) return (p); return (0); } #include /* * getline - a hacked up version of fgets to ignore TELNET escape codes. */ char * telnet_fgets(s, n, iop) char *s; int n; FILE *iop; { int 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) { if (!guest && strncasecmp("pass ", s, 5) == 0) { /* Don't syslog passwords */ syslog(LOG_DEBUG, "command: %.5s ???", s); } else { register char *cp; register int len; /* Don't syslog trailing CR-LF */ len = strlen(s); cp = s + len - 1; while (cp >= s && (*cp == '\n' || *cp == '\r')) { --cp; --len; } syslog(LOG_DEBUG, "command: %.*s", len, s); } } return (s); } static void toolong(signo) int signo; { reply(421, "Timeout (%d seconds): closing control connection.", timeout); if (logging) syslog(LOG_INFO, "User %s timed out after %d seconds", (pw ? pw -> pw_name : "unknown"), timeout); dologout(1); } static int yylex() { static int cpos, state; char *cp, *cp2; struct tab *p; int n; char c; for (;;) { switch (state) { case CMD: (void) signal(SIGALRM, toolong); (void) alarm((unsigned) timeout); if (telnet_fgets(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 */ if ((cp = strchr(cbuf, '\r'))) { *cp++ = '\n'; *cp = '\0'; } if ((cp = strpbrk(cbuf, " \n"))) cpos = cp - cbuf; if (cpos == 0) cpos = 4; c = cbuf[cpos]; cbuf[cpos] = '\0'; upper(cbuf); p = lookup(cmdtab, cbuf); cbuf[cpos] = c; if (p != 0) { if (p->implemented == 0) { nack(p->name); longjmp(errcatch,0); /* NOTREACHED */ } state = p->state; yylval.s = p->name; return (p->token); } break; case SITECMD: if (cbuf[cpos] == ' ') { cpos++; return (SP); } cp = &cbuf[cpos]; if ((cp2 = strpbrk(cp, " \n"))) cpos = cp2 - cbuf; c = cbuf[cpos]; cbuf[cpos] = '\0'; upper(cp); p = lookup(sitetab, cp); cbuf[cpos] = c; if (p != 0) { if (p->implemented == 0) { state = CMD; nack(p->name); longjmp(errcatch,0); /* NOTREACHED */ } state = p->state; yylval.s = p->name; return (p->token); } state = CMD; break; case OSTR: if (cbuf[cpos] == '\n') { state = CMD; return (CRLF); } /* FALLTHROUGH */ case STR1: case ZSTR1: dostr1: if (cbuf[cpos] == ' ') { cpos++; state = state == OSTR ? STR2 : ++state; return (SP); } break; case ZSTR2: if (cbuf[cpos] == '\n') { state = CMD; return (CRLF); } /* FALLTHROUGH */ case STR2: cp = &cbuf[cpos]; n = strlen(cp); cpos += n - 1; /* * Make sure the string is nonempty and \n terminated. */ if (n > 1 && cbuf[cpos] == '\n') { cbuf[cpos] = '\0'; yylval.s = copy(cp); cbuf[cpos] = '\n'; state = ARGS; return (STRING); } break; case NSTR: if (cbuf[cpos] == ' ') { cpos++; return (SP); } if (isdigit(cbuf[cpos])) { cp = &cbuf[cpos]; while (isdigit(cbuf[++cpos])) ; c = cbuf[cpos]; cbuf[cpos] = '\0'; yylval.i = atoi(cp); cbuf[cpos] = c; state = STR1; return (NUMBER); } state = STR1; goto dostr1; case ARGS: if (isdigit(cbuf[cpos])) { cp = &cbuf[cpos]; while (isdigit(cbuf[++cpos])) ; c = cbuf[cpos]; cbuf[cpos] = '\0'; yylval.i = atoi(cp); cbuf[cpos] = c; return (NUMBER); } switch (cbuf[cpos++]) { case '\n': state = CMD; return (CRLF); case ' ': return (SP); case ',': return (COMMA); case 'A': case 'a': return (A); case 'B': case 'b': return (B); case 'C': case 'c': return (C); case 'E': case 'e': return (E); case 'F': case 'f': return (F); case 'I': case 'i': return (I); case 'L': case 'l': return (L); case 'N': case 'n': return (N); case 'P': case 'p': return (P); case 'R': case 'r': return (R); case 'S': case 's': return (S); case 'T': case 't': return (T); } break; default: fatal("Unknown state in scanner."); } yyerror((char *) 0); state = CMD; longjmp(errcatch,0); } } void upper(s) char *s; { while (*s != '\0') { if (islower(*s)) *s = toupper(*s); s++; } } static char * copy(s) char *s; { char *p; p = malloc((unsigned) strlen(s) + 1); if (p == NULL) fatal("Ran out of memory."); (void) strcpy(p, s); return (p); } static void help(ctab, s) struct tab *ctab; char *s; { struct tab *c; int width, NCMDS; char *type; if (ctab == sitetab) type = "SITE "; else type = ""; width = 0, NCMDS = 0; for (c = ctab; c->name != NULL; c++) { int len = strlen(c->name); if (len > width) width = len; NCMDS++; } width = (width + 8) &~ 7; if (s == 0) { int i, j, w; int columns, lines; lreply(214, "The following %scommands are recognized %s.", type, "(* =>'s unimplemented)"); columns = 76 / width; if (columns == 0) columns = 1; lines = (NCMDS + columns - 1) / columns; for (i = 0; i < lines; i++) { printf(" "); for (j = 0; j < columns; j++) { c = ctab + j * lines + i; printf("%s%c", c->name, c->implemented ? ' ' : '*'); if (c + lines >= &ctab[NCMDS]) break; w = strlen(c->name) + 1; while (w < width) { putchar(' '); w++; } } printf("\r\n"); } (void) fflush(stdout); reply(214, "Direct comments to ftp-bugs@%s.", hostname); return; } upper(s); c = lookup(ctab, s); if (c == (struct tab *)0) { reply(502, "Unknown command %s.", s); return; } if (c->implemented) reply(214, "Syntax: %s%s %s", type, c->name, c->help); else reply(214, "%s%-*s\t%s; unimplemented.", type, width, c->name, c->help); } static void sizecmd(filename) char *filename; { switch (type) { case TYPE_L: case TYPE_I: { struct stat stbuf; if (stat(filename, &stbuf) < 0 || !S_ISREG(stbuf.st_mode)) reply(550, "%s: not a plain file.", filename); else reply(213, (sizeof (stbuf.st_size) > sizeof(long) ? "%qu" : "%lu"), stbuf.st_size); break; } case TYPE_A: { FILE *fin; int c; off_t count; struct stat stbuf; fin = fopen(filename, "r"); if (fin == NULL) { perror_reply(550, filename); return; } if (fstat(fileno(fin), &stbuf) < 0 || !S_ISREG(stbuf.st_mode)) { reply(550, "%s: not a plain file.", filename); (void) fclose(fin); return; } count = 0; while((c=getc(fin)) != EOF) { if (c == '\n') /* will get expanded to \r\n */ count++; count++; } (void) fclose(fin); reply(213, sizeof(count) > sizeof(long) ? "%qd" : "%ld", count); break; } default: reply(504, "SIZE not implemented for Type %c.", "?AEIL"[type]); } }