/* A Bison parser, made from ftpcmd.y by GNU Bison version 1.28 */ #define YYBISON 1 /* Identify Bison output. */ #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 AUTH 316 #define ADAT 317 #define PROT 318 #define PBSZ 319 #define CCC 320 #define UMASK 321 #define IDLE 322 #define CHMOD 323 #define LEXERR 324 #line 42 "ftpcmd.y" #ifndef lint static char sccsid[] = "@(#)ftpcmd.y 5.24 (Berkeley) 2/25/91"; #endif /* not lint */ #ifdef HAVE_CONFIG_H #include #endif #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include extern char *auth_type; unsigned int maxbuf, actualbuf; unsigned char *ucbuf; #if defined(STDARG) || (defined(__STDC__) && ! defined(VARARGS)) || defined(HAVE_STDARG_H) extern reply(int, char *, ...); extern lreply(int, char *, ...); #endif static int kerror; /* XXX needed for all auth types */ #ifdef KERBEROS extern struct sockaddr_in his_addr, ctrl_addr; #include extern AUTH_DAT kdata; extern Key_schedule schedule; extern MSG_DAT msg_data; #endif /* KERBEROS */ #ifdef GSSAPI #include #include extern gss_ctx_id_t gcontext; #endif #ifndef unix #ifdef _AIX #define unix #endif #ifdef __hpux #define unix #endif #endif #ifndef NBBY #ifdef linux #define NBBY 8 #endif #ifdef __pyrsoft #ifdef MIPSEB #define NBBY 8 #endif #endif #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 char *globerr; extern int usedefault; extern int transflag; extern char tmpline[]; char **ftpglob(); off_t restart_point; static int cmd_type; static int cmd_form; static int cmd_bytesz; char cbuf[FTP_BUFSIZ]; /* was 512 */ char *fromname; /* bison needs these decls up front */ 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[]; struct tab sitetab[]; #line 165 "ftpcmd.y" typedef union { int num; char *str; } YYSTYPE; #include #ifndef __cplusplus #ifndef __STDC__ #define const #endif #endif #define YYFINAL 228 #define YYFLAG -32768 #define YYNTBASE 71 #define YYTRANSLATE(x) ((unsigned)(x) <= 324 ? yytranslate[x] : 87) 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, 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, 66, 67, 68, 69, 70 }; #if YYDEBUG != 0 static const short yyprhs[] = { 0, 0, 1, 4, 7, 12, 17, 22, 26, 31, 34, 39, 44, 49, 54, 59, 68, 74, 80, 86, 90, 96, 100, 106, 112, 115, 121, 126, 129, 133, 139, 142, 147, 150, 156, 162, 166, 170, 175, 182, 188, 196, 206, 211, 218, 224, 227, 233, 239, 244, 249, 252, 255, 261, 266, 268, 269, 271, 273, 285, 287, 289, 291, 293, 295, 297, 299, 301, 305, 307, 311, 313, 315, 319, 322, 324, 326, 328, 330, 332, 334, 336, 338, 340 }; static const short yyrhs[] = { -1, 71, 72, 0, 71, 73, 0, 20, 15, 74, 16, 0, 21, 15, 75, 16, 0, 25, 15, 77, 16, 0, 26, 86, 16, 0, 64, 15, 79, 16, 0, 66, 16, 0, 65, 15, 18, 16, 0, 27, 15, 80, 16, 0, 28, 15, 81, 16, 0, 29, 15, 82, 16, 0, 40, 15, 19, 16, 0, 40, 15, 19, 15, 12, 15, 19, 16, 0, 30, 86, 15, 83, 16, 0, 31, 86, 15, 83, 16, 0, 32, 86, 15, 83, 16, 0, 48, 86, 16, 0, 48, 86, 15, 18, 16, 0, 47, 86, 16, 0, 47, 86, 15, 18, 16, 0, 50, 86, 15, 83, 16, 0, 50, 16, 0, 45, 86, 15, 83, 16, 0, 43, 15, 83, 16, 0, 44, 16, 0, 46, 86, 16, 0, 46, 86, 15, 83, 16, 0, 51, 16, 0, 51, 15, 18, 16, 0, 52, 16, 0, 53, 86, 15, 83, 16, 0, 54, 86, 15, 83, 16, 0, 55, 86, 16, 0, 56, 86, 16, 0, 49, 15, 51, 16, 0, 49, 15, 51, 15, 18, 16, 0, 49, 15, 67, 86, 16, 0, 49, 15, 67, 86, 15, 85, 16, 0, 49, 15, 69, 86, 15, 85, 15, 83, 16, 0, 49, 15, 68, 16, 0, 49, 15, 68, 15, 19, 16, 0, 57, 86, 15, 83, 16, 0, 59, 16, 0, 60, 86, 15, 83, 16, 0, 61, 86, 15, 83, 16, 0, 62, 15, 18, 16, 0, 63, 15, 18, 16, 0, 24, 16, 0, 1, 16, 0, 42, 86, 15, 83, 16, 0, 41, 15, 76, 16, 0, 18, 0, 0, 18, 0, 19, 0, 19, 17, 19, 17, 19, 17, 19, 17, 19, 17, 19, 0, 10, 0, 14, 0, 5, 0, 5, 0, 13, 0, 11, 0, 6, 0, 3, 0, 3, 15, 78, 0, 6, 0, 6, 15, 78, 0, 8, 0, 9, 0, 9, 15, 76, 0, 9, 76, 0, 7, 0, 12, 0, 11, 0, 13, 0, 4, 0, 5, 0, 84, 0, 18, 0, 19, 0, 0 }; #endif #if YYDEBUG != 0 static const short yyrline[] = { 0, 198, 199, 204, 207, 212, 217, 226, 231, 238, 242, 268, 303, 315, 327, 331, 335, 342, 349, 356, 361, 368, 373, 380, 387, 391, 398, 409, 413, 418, 425, 429, 444, 448, 455, 462, 467, 472, 476, 480, 490, 505, 519, 525, 539, 546, 570, 587, 609, 613, 618, 623, 628, 640, 649, 652, 656, 659, 662, 675, 679, 683, 689, 693, 697, 701, 707, 712, 717, 722, 727, 731, 736, 742, 749, 753, 757, 763, 767, 771, 777, 816, 819, 844 }; #endif #if YYDEBUG != 0 || defined (YYERROR_VERBOSE) static const char * const yytname[] = { "$","error","$undefined.","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","AUTH","ADAT","PROT", "PBSZ","CCC","UMASK","IDLE","CHMOD","LEXERR","cmd_list","cmd","rcmd","username", "password","byte_size","host_port","form_code","prot_code","type_code","struct_code", "mode_code","pathname","pathstring","octal_number","check_login", NULL }; #endif static const short yyr1[] = { 0, 71, 71, 71, 72, 72, 72, 72, 72, 72, 72, 72, 72, 72, 72, 72, 72, 72, 72, 72, 72, 72, 72, 72, 72, 72, 72, 72, 72, 72, 72, 72, 72, 72, 72, 72, 72, 72, 72, 72, 72, 72, 72, 72, 72, 72, 72, 72, 72, 72, 72, 72, 73, 73, 74, 75, 75, 76, 77, 78, 78, 78, 79, 79, 79, 79, 80, 80, 80, 80, 80, 80, 80, 80, 81, 81, 81, 82, 82, 82, 83, 84, 85, 86 }; static const short yyr2[] = { 0, 0, 2, 2, 4, 4, 4, 3, 4, 2, 4, 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, 4, 4, 2, 2, 5, 4, 1, 0, 1, 1, 11, 1, 1, 1, 1, 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, 83, 0, 0, 0, 83, 83, 83, 0, 0, 83, 0, 0, 83, 83, 83, 83, 0, 83, 0, 0, 83, 83, 83, 83, 83, 0, 83, 83, 0, 0, 0, 0, 0, 2, 3, 51, 0, 55, 50, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 27, 0, 0, 0, 0, 0, 24, 0, 0, 30, 32, 0, 0, 0, 0, 0, 45, 0, 0, 0, 0, 0, 0, 9, 54, 0, 56, 0, 0, 0, 7, 66, 68, 70, 71, 0, 74, 76, 75, 0, 78, 79, 77, 0, 0, 0, 0, 0, 57, 0, 0, 81, 0, 80, 0, 0, 28, 0, 21, 0, 19, 0, 83, 0, 83, 0, 0, 0, 0, 35, 36, 0, 0, 0, 0, 0, 62, 65, 64, 63, 0, 0, 4, 5, 0, 6, 0, 0, 0, 73, 11, 12, 13, 0, 0, 0, 0, 14, 53, 0, 26, 0, 0, 0, 0, 0, 37, 0, 0, 42, 0, 0, 31, 0, 0, 0, 0, 0, 48, 49, 8, 10, 0, 61, 59, 60, 67, 69, 72, 16, 17, 18, 0, 52, 25, 29, 22, 20, 0, 0, 39, 0, 0, 23, 33, 34, 44, 46, 47, 0, 0, 38, 82, 0, 43, 0, 0, 0, 40, 0, 0, 15, 0, 0, 41, 0, 0, 0, 58, 0, 0 }; static const short yydefgoto[] = { 1, 40, 41, 83, 85, 107, 87, 184, 138, 93, 97, 101, 110, 111, 211, 47 }; static const short yypact[] = {-32768, 36, -13, -10, -2, 26, 60,-32768, 79, 92, 99, -32768,-32768,-32768, 105, 106,-32768, 107, 35,-32768,-32768, -32768,-32768, 108, 109, 10, 110,-32768,-32768,-32768,-32768, -32768, 111,-32768,-32768, 113, 114, 115, 116, 117,-32768, -32768,-32768, 0, 1,-32768, 118, 119, 100, 62, 4, 121, 123, 125, 124, 126, 127, 128,-32768, 129, 18, 29, 89, 3,-32768, 132, 130,-32768,-32768, 134, 135, 136, 137, 139,-32768, 140, 141, 133, 142, 9, 143, -32768,-32768, 146,-32768, 147, 148, 150,-32768, 144, 149, -32768, 40, 151,-32768,-32768,-32768, 152,-32768,-32768,-32768, 153, 128, 128, 128, 95,-32768, 154, 128,-32768, 155, -32768, 128, 128,-32768, 156,-32768, 157,-32768, 97,-32768, 101,-32768, 128, 160, 128, 128,-32768,-32768, 128, 128, 128, 161, 162,-32768,-32768,-32768,-32768, 163, 164,-32768, -32768, 138,-32768, 2, 2, 126,-32768,-32768,-32768,-32768, 165, 166, 167, 112,-32768,-32768, 168,-32768, 169, 170, 171, 172, 173,-32768, 103, 174,-32768, 158, 176,-32768, 178, 179, 180, 181, 182,-32768,-32768,-32768,-32768, 183, -32768,-32768,-32768,-32768,-32768,-32768,-32768,-32768,-32768, 175, -32768,-32768,-32768,-32768,-32768, 185, 184,-32768, 186, 184, -32768,-32768,-32768,-32768,-32768,-32768, 187, 188,-32768,-32768, 189,-32768, 193, 192, 194,-32768, 128, 195,-32768, 196, 198,-32768, 197, 200, 199,-32768, 204,-32768 }; static const short yypgoto[] = {-32768, -32768,-32768,-32768,-32768, -88,-32768, -11,-32768,-32768,-32768, -32768, -102,-32768, -68, 19 }; #define YYLAST 218 static const short yytable[] = { 151, 152, 153, 42, 147, 43, 157, 181, 98, 99, 159, 160, 182, 44, 134, 135, 183, 100, 82, 84, 136, 169, 137, 171, 172, 66, 67, 173, 174, 175, 51, 52, 53, 113, 114, 56, 227, 2, 59, 60, 61, 62, 45, 65, 115, 116, 69, 70, 71, 72, 73, 58, 75, 76, 119, 146, 3, 4, 186, 106, 5, 6, 7, 8, 9, 10, 11, 12, 13, 94, 120, 121, 122, 95, 96, 46, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 48, 32, 33, 34, 35, 36, 37, 38, 39, 89, 117, 118, 90, 49, 91, 92, 154, 155, 163, 164, 50, 220, 166, 167, 197, 198, 54, 55, 57, 63, 190, 64, 68, 74, 77, 78, 79, 80, 213, 81, 185, 88, 102, 86, 103, 165, 104, 168, 108, 105, 112, 106, 109, 123, 124, 125, 126, 132, 127, 128, 129, 130, 131, 180, 0, 144, 133, 139, 140, 141, 145, 142, 143, 148, 149, 150, 156, 158, 0, 200, 161, 162, 170, 176, 177, 178, 179, 187, 188, 189, 191, 192, 193, 194, 195, 0, 208, 196, 201, 199, 202, 203, 204, 205, 206, 0, 207, 209, 212, 210, 228, 216, 214, 215, 217, 218, 219, 0, 222, 0, 221, 223, 224, 225, 226 }; static const short yycheck[] = { 102, 103, 104, 16, 92, 15, 108, 5, 4, 5, 112, 113, 10, 15, 5, 6, 14, 13, 18, 18, 11, 123, 13, 125, 126, 15, 16, 129, 130, 131, 11, 12, 13, 15, 16, 16, 0, 1, 19, 20, 21, 22, 16, 24, 15, 16, 27, 28, 29, 30, 31, 16, 33, 34, 51, 15, 20, 21, 146, 19, 24, 25, 26, 27, 28, 29, 30, 31, 32, 7, 67, 68, 69, 11, 12, 15, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 15, 59, 60, 61, 62, 63, 64, 65, 66, 3, 15, 16, 6, 15, 8, 9, 15, 16, 15, 16, 15, 217, 15, 16, 15, 16, 15, 15, 15, 15, 12, 16, 16, 16, 15, 15, 15, 15, 200, 16, 145, 16, 15, 19, 15, 120, 15, 122, 15, 19, 15, 19, 18, 15, 18, 15, 15, 18, 16, 16, 15, 15, 15, 19, -1, 15, 18, 18, 16, 16, 15, 17, 16, 16, 16, 16, 16, 16, -1, 15, 18, 18, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, -1, 15, 18, 16, 19, 16, 16, 16, 16, 16, -1, 17, 16, 16, 19, 0, 16, 19, 19, 15, 17, 16, -1, 16, -1, 19, 17, 19, 17, 19 }; /* -*-C-*- Note some compilers choke on comments on `#line' lines. */ #line 3 "/usr/lib/bison.simple" /* This file comes from bison-1.28. */ /* 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, 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. */ /* 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. */ #ifndef YYSTACK_USE_ALLOCA #ifdef alloca #define YYSTACK_USE_ALLOCA #else /* alloca not defined */ #ifdef __GNUC__ #define YYSTACK_USE_ALLOCA #define alloca __builtin_alloca #else /* not GNU C. */ #if (!defined (__STDC__) && defined (sparc)) || defined (__sparc__) || defined (__sparc) || defined (__sgi) || (defined (__sun) && defined (__i386)) #define YYSTACK_USE_ALLOCA #include #else /* not sparc */ /* We think this test detects Watcom and Microsoft C. */ /* This used to test MSDOS, but that is a bad idea since that symbol is in the user namespace. */ #if (defined (_MSDOS) || defined (_MSDOS_)) && !defined (__TURBOC__) #if 0 /* No need for malloc.h, which pollutes the namespace; instead, just don't use alloca. */ #include #endif #else /* not MSDOS, or __TURBOC__ */ #if defined(_AIX) /* I don't know what this was needed for, but it pollutes the namespace. So I turned it off. rms, 2 May 1997. */ /* #include */ #pragma alloca #define YYSTACK_USE_ALLOCA #else /* not MSDOS, or __TURBOC__, or _AIX */ #if 0 #ifdef __hpux /* haible@ilog.fr says this works for HPUX 9.05 and up, and on HPUX 10. Eventually we can turn this on. */ #define YYSTACK_USE_ALLOCA #define alloca __builtin_alloca #endif /* __hpux */ #endif #endif /* not _AIX */ #endif /* not MSDOS, or __TURBOC__ */ #endif /* not sparc */ #endif /* not GNU C */ #endif /* alloca not defined */ #endif /* YYSTACK_USE_ALLOCA not defined */ #ifdef YYSTACK_USE_ALLOCA #define YYSTACK_ALLOC alloca #else #define YYSTACK_ALLOC malloc #endif /* 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 goto yyacceptlab #define YYABORT goto yyabortlab #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 /* Define __yy_memcpy. Note that the size argument should be passed with type unsigned int, because that is what the non-GCC definitions require. With GCC, __builtin_memcpy takes an arg of type size_t, but it can handle unsigned int. */ #if __GNUC__ > 1 /* GNU C and GNU C++ define this. */ #define __yy_memcpy(TO,FROM,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 (to, from, count) char *to; char *from; unsigned 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 *to, char *from, unsigned int count) { register char *t = to; register char *f = from; register int i = count; while (i-- > 0) *t++ = *f++; } #endif #endif #line 217 "/usr/lib/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 #ifdef __cplusplus #define YYPARSE_PARAM_ARG void *YYPARSE_PARAM #define YYPARSE_PARAM_DECL #else /* not __cplusplus */ #define YYPARSE_PARAM_ARG YYPARSE_PARAM #define YYPARSE_PARAM_DECL void *YYPARSE_PARAM; #endif /* not __cplusplus */ #else /* not YYPARSE_PARAM */ #define YYPARSE_PARAM_ARG #define YYPARSE_PARAM_DECL #endif /* not YYPARSE_PARAM */ /* Prevent warning if -Wstrict-prototypes. */ #ifdef __GNUC__ #ifdef YYPARSE_PARAM int yyparse (void *); #else int yyparse (void); #endif #endif int yyparse(YYPARSE_PARAM_ARG) 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; int yyfree_stacks = 0; #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"); if (yyfree_stacks) { free (yyss); free (yyvs); #ifdef YYLSP_NEEDED free (yyls); #endif } return 2; } yystacksize *= 2; if (yystacksize > YYMAXDEPTH) yystacksize = YYMAXDEPTH; #ifndef YYSTACK_USE_ALLOCA yyfree_stacks = 1; #endif yyss = (short *) YYSTACK_ALLOC (yystacksize * sizeof (*yyssp)); __yy_memcpy ((char *)yyss, (char *)yyss1, size * (unsigned int) sizeof (*yyssp)); yyvs = (YYSTYPE *) YYSTACK_ALLOC (yystacksize * sizeof (*yyvsp)); __yy_memcpy ((char *)yyvs, (char *)yyvs1, size * (unsigned int) sizeof (*yyvsp)); #ifdef YYLSP_NEEDED yyls = (YYLTYPE *) YYSTACK_ALLOC (yystacksize * sizeof (*yylsp)); __yy_memcpy ((char *)yyls, (char *)yyls1, size * (unsigned int) 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 200 "ftpcmd.y" { fromname = (char *) 0; restart_point = (off_t) 0; ; break;} case 4: #line 208 "ftpcmd.y" { user((char *) yyvsp[-1].str); free((char *) yyvsp[-1].str); ; break;} case 5: #line 213 "ftpcmd.y" { pass((char *) yyvsp[-1].str); free((char *) yyvsp[-1].str); ; break;} case 6: #line 218 "ftpcmd.y" { usedefault = 0; if (pdata >= 0) { (void) close(pdata); pdata = -1; } reply(200, "PORT command successful."); ; break;} case 7: #line 227 "ftpcmd.y" { if (yyvsp[-1].num) passive(); ; break;} case 8: #line 232 "ftpcmd.y" { if (maxbuf) setlevel (yyvsp[-1].num); else reply(503, "Must first set PBSZ"); ; break;} case 9: #line 239 "ftpcmd.y" { reply(534, "CCC not supported"); ; break;} case 10: #line 243 "ftpcmd.y" { /* Others may want to do something more fancy here */ if (!auth_type) reply(503, "Must first perform authentication"); else if (strlen(yyvsp[-1].str) > 10 || strlen(yyvsp[-1].str) == 10 && strcmp(yyvsp[-1].str,"4294967296") >= 0) reply(501, "Bad value for PBSZ: %s", yyvsp[-1].str); else if (actualbuf >= (maxbuf =(unsigned int) atol(yyvsp[-1].str))) reply(200, "PBSZ=%u", actualbuf); else { if (ucbuf) (void) free(ucbuf); actualbuf = (unsigned int) atol(yyvsp[-1].str); /* I attempt what is asked for first, and if that fails, I try dividing by 4 */ while ((ucbuf = (unsigned char *)malloc(actualbuf)) == NULL) if (actualbuf) lreply(200, "Trying %u", actualbuf >>= 2); else { perror_reply(421, "Local resource failure: malloc"); dologout(1); } reply(200, "PBSZ=%u", maxbuf = actualbuf); } ; break;} case 11: #line 269 "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 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 12: #line 304 "ftpcmd.y" { switch (yyvsp[-1].num) { case STRU_F: reply(200, "STRU F ok."); break; default: reply(504, "Unimplemented STRU type."); } ; break;} case 13: #line 316 "ftpcmd.y" { switch (yyvsp[-1].num) { case MODE_S: reply(200, "MODE S ok."); break; default: reply(502, "Unimplemented MODE type."); } ; break;} case 14: #line 328 "ftpcmd.y" { reply(202, "ALLO command ignored."); ; break;} case 15: #line 332 "ftpcmd.y" { reply(202, "ALLO command ignored."); ; break;} case 16: #line 336 "ftpcmd.y" { if (yyvsp[-3].num && yyvsp[-1].str != NULL) retrieve((char *) 0, (char *) yyvsp[-1].str); if (yyvsp[-1].str != NULL) free((char *) yyvsp[-1].str); ; break;} case 17: #line 343 "ftpcmd.y" { if (yyvsp[-3].num && yyvsp[-1].str != NULL) store_file((char *) yyvsp[-1].str, "w", 0); if (yyvsp[-1].str != NULL) free((char *) yyvsp[-1].str); ; break;} case 18: #line 350 "ftpcmd.y" { if (yyvsp[-3].num && yyvsp[-1].str != NULL) store_file((char *) yyvsp[-1].str, "a", 0); if (yyvsp[-1].str != NULL) free((char *) yyvsp[-1].str); ; break;} case 19: #line 357 "ftpcmd.y" { if (yyvsp[-1].num) send_file_list("."); ; break;} case 20: #line 362 "ftpcmd.y" { if (yyvsp[-3].num && yyvsp[-1].str != NULL) send_file_list((char *) yyvsp[-1].str); if (yyvsp[-1].str != NULL) free((char *) yyvsp[-1].str); ; break;} case 21: #line 369 "ftpcmd.y" { if (yyvsp[-1].num) retrieve("/bin/ls -lgA", ""); ; break;} case 22: #line 374 "ftpcmd.y" { if (yyvsp[-3].num && yyvsp[-1].str != NULL) retrieve("/bin/ls -lgA %s", (char *) yyvsp[-1].str); if (yyvsp[-1].str != NULL) free((char *) yyvsp[-1].str); ; break;} case 23: #line 381 "ftpcmd.y" { if (yyvsp[-3].num && yyvsp[-1].str != NULL) statfilecmd((char *) yyvsp[-1].str); if (yyvsp[-1].str != NULL) free((char *) yyvsp[-1].str); ; break;} case 24: #line 388 "ftpcmd.y" { statcmd(); ; break;} case 25: #line 392 "ftpcmd.y" { if (yyvsp[-3].num && yyvsp[-1].str != NULL) delete_file((char *) yyvsp[-1].str); if (yyvsp[-1].str != NULL) free((char *) yyvsp[-1].str); ; break;} case 26: #line 399 "ftpcmd.y" { if (fromname) { renamecmd(fromname, (char *) yyvsp[-1].str); free(fromname); fromname = (char *) 0; } else { reply(503, "Bad sequence of commands."); } free((char *) yyvsp[-1].str); ; break;} case 27: #line 410 "ftpcmd.y" { reply(225, "ABOR command successful."); ; break;} case 28: #line 414 "ftpcmd.y" { if (yyvsp[-1].num) cwd(pw->pw_dir); ; break;} case 29: #line 419 "ftpcmd.y" { if (yyvsp[-3].num && yyvsp[-1].str != NULL) cwd((char *) yyvsp[-1].str); if (yyvsp[-1].str != NULL) free((char *) yyvsp[-1].str); ; break;} case 30: #line 426 "ftpcmd.y" { help(cmdtab, (char *) 0); ; break;} case 31: #line 430 "ftpcmd.y" { register char *cp = (char *)yyvsp[-1].str; if (strncasecmp(cp, "SITE", 4) == 0) { cp = (char *)yyvsp[-1].str + 4; if (*cp == ' ') cp++; if (*cp) help(sitetab, cp); else help(sitetab, (char *) 0); } else help(cmdtab, (char *) yyvsp[-1].str); ; break;} case 32: #line 445 "ftpcmd.y" { reply(200, "NOOP command successful."); ; break;} case 33: #line 449 "ftpcmd.y" { if (yyvsp[-3].num && yyvsp[-1].str != NULL) makedir((char *) yyvsp[-1].str); if (yyvsp[-1].str != NULL) free((char *) yyvsp[-1].str); ; break;} case 34: #line 456 "ftpcmd.y" { if (yyvsp[-3].num && yyvsp[-1].str != NULL) removedir((char *) yyvsp[-1].str); if (yyvsp[-1].str != NULL) free((char *) yyvsp[-1].str); ; break;} case 35: #line 463 "ftpcmd.y" { if (yyvsp[-1].num) pwd(); ; break;} case 36: #line 468 "ftpcmd.y" { if (yyvsp[-1].num) cwd(".."); ; break;} case 37: #line 473 "ftpcmd.y" { help(sitetab, (char *) 0); ; break;} case 38: #line 477 "ftpcmd.y" { help(sitetab, (char *) yyvsp[-1].str); ; break;} case 39: #line 481 "ftpcmd.y" { int oldmask; if (yyvsp[-1].num) { oldmask = umask(0); (void) umask(oldmask); reply(200, "Current UMASK is %03o", oldmask); } ; break;} case 40: #line 491 "ftpcmd.y" { int oldmask; if (yyvsp[-3].num) { if ((yyvsp[-1].num == -1) || (yyvsp[-1].num > 0777)) { reply(501, "Bad UMASK value"); } else { oldmask = umask(yyvsp[-1].num); reply(200, "UMASK set to %03o (was %03o)", yyvsp[-1].num, oldmask); } } ; break;} case 41: #line 506 "ftpcmd.y" { if (yyvsp[-5].num && (yyvsp[-1].str != NULL)) { if (yyvsp[-3].num > 0777) reply(501, "CHMOD: Mode value must be between 0 and 0777"); else if (chmod((char *) yyvsp[-1].str, yyvsp[-3].num) < 0) perror_reply(550, (char *) yyvsp[-1].str); else reply(200, "CHMOD command successful."); } if (yyvsp[-1].str != NULL) free((char *) yyvsp[-1].str); ; break;} case 42: #line 520 "ftpcmd.y" { reply(200, "Current IDLE time limit is %d seconds; max %d", timeout, maxtimeout); ; break;} case 43: #line 526 "ftpcmd.y" { if (yyvsp[-1].num < 30 || yyvsp[-1].num > maxtimeout) { reply(501, "Maximum IDLE time must be between 30 and %d seconds", maxtimeout); } else { timeout = yyvsp[-1].num; (void) alarm((unsigned) timeout); reply(200, "Maximum IDLE time set to %d seconds", timeout); } ; break;} case 44: #line 540 "ftpcmd.y" { if (yyvsp[-3].num && yyvsp[-1].str != NULL) store_file((char *) yyvsp[-1].str, "w", 1); if (yyvsp[-1].str != NULL) free((char *) yyvsp[-1].str); ; break;} case 45: #line 547 "ftpcmd.y" { #ifdef unix #ifdef __svr4__ #undef BSD #endif #ifdef BSD reply(215, "UNIX Type: L%d Version: BSD-%d", NBBY, BSD); #else /* BSD */ reply(215, "UNIX Type: L%d", NBBY); #endif /* BSD */ #else /* unix */ reply(215, "UNKNOWN Type: L%d", NBBY); #endif /* unix */ ; break;} case 46: #line 571 "ftpcmd.y" { if (yyvsp[-3].num && yyvsp[-1].str != NULL) sizecmd((char *) yyvsp[-1].str); if (yyvsp[-1].str != NULL) free((char *) yyvsp[-1].str); ; break;} case 47: #line 588 "ftpcmd.y" { if (yyvsp[-3].num && yyvsp[-1].str != NULL) { struct stat stbuf; if (stat((char *) yyvsp[-1].str, &stbuf) < 0) perror_reply(550, "%s", (char *) yyvsp[-1].str); else if ((stbuf.st_mode&S_IFMT) != S_IFREG) { reply(550, "%s: not a plain file.", (char *) yyvsp[-1].str); } else { register struct tm *t; struct tm *gmtime(); t = gmtime(&stbuf.st_mtime); reply(213, "%04d%02d%02d%02d%02d%02d", 1900 + t->tm_year, t->tm_mon+1, t->tm_mday, t->tm_hour, t->tm_min, t->tm_sec); } } if (yyvsp[-1].str != NULL) free((char *) yyvsp[-1].str); ; break;} case 48: #line 610 "ftpcmd.y" { auth((char *) yyvsp[-1].str); ; break;} case 49: #line 614 "ftpcmd.y" { auth_data((char *) yyvsp[-1].str); free((char *) yyvsp[-1].str); ; break;} case 50: #line 619 "ftpcmd.y" { reply(221, "Goodbye."); dologout(0); ; break;} case 51: #line 624 "ftpcmd.y" { yyerrok; ; break;} case 52: #line 629 "ftpcmd.y" { char *renamefrom(); restart_point = (off_t) 0; if (yyvsp[-3].num && yyvsp[-1].str) { fromname = renamefrom((char *) yyvsp[-1].str); if (fromname == (char *) 0 && yyvsp[-1].str) { free((char *) yyvsp[-1].str); } } ; break;} case 53: #line 641 "ftpcmd.y" { fromname = (char *) 0; restart_point = yyvsp[-1].num; reply(350, "Restarting at %ld. %s", restart_point, "Send STORE or RETRIEVE to initiate transfer."); ; break;} case 55: #line 653 "ftpcmd.y" { *(char **)&(yyval.str) = (char *)calloc(1, sizeof(char)); ; break;} case 58: #line 664 "ftpcmd.y" { register char *a, *p; a = (char *)&data_dest.sin_addr; a[0] = yyvsp[-10].num; a[1] = yyvsp[-8].num; a[2] = yyvsp[-6].num; a[3] = yyvsp[-4].num; p = (char *)&data_dest.sin_port; p[0] = yyvsp[-2].num; p[1] = yyvsp[0].num; data_dest.sin_family = AF_INET; ; break;} case 59: #line 676 "ftpcmd.y" { yyval.num = FORM_N; ; break;} case 60: #line 680 "ftpcmd.y" { yyval.num = FORM_T; ; break;} case 61: #line 684 "ftpcmd.y" { yyval.num = FORM_C; ; break;} case 62: #line 690 "ftpcmd.y" { yyval.num = PROT_C; ; break;} case 63: #line 694 "ftpcmd.y" { yyval.num = PROT_S; ; break;} case 64: #line 698 "ftpcmd.y" { yyval.num = PROT_P; ; break;} case 65: #line 702 "ftpcmd.y" { yyval.num = PROT_E; ; break;} case 66: #line 708 "ftpcmd.y" { cmd_type = TYPE_A; cmd_form = FORM_N; ; break;} case 67: #line 713 "ftpcmd.y" { cmd_type = TYPE_A; cmd_form = yyvsp[0].num; ; break;} case 68: #line 718 "ftpcmd.y" { cmd_type = TYPE_E; cmd_form = FORM_N; ; break;} case 69: #line 723 "ftpcmd.y" { cmd_type = TYPE_E; cmd_form = yyvsp[0].num; ; break;} case 70: #line 728 "ftpcmd.y" { cmd_type = TYPE_I; ; break;} case 71: #line 732 "ftpcmd.y" { cmd_type = TYPE_L; cmd_bytesz = NBBY; ; break;} case 72: #line 737 "ftpcmd.y" { cmd_type = TYPE_L; cmd_bytesz = yyvsp[0].num; ; break;} case 73: #line 743 "ftpcmd.y" { cmd_type = TYPE_L; cmd_bytesz = yyvsp[0].num; ; break;} case 74: #line 750 "ftpcmd.y" { yyval.num = STRU_F; ; break;} case 75: #line 754 "ftpcmd.y" { yyval.num = STRU_R; ; break;} case 76: #line 758 "ftpcmd.y" { yyval.num = STRU_P; ; break;} case 77: #line 764 "ftpcmd.y" { yyval.num = MODE_S; ; break;} case 78: #line 768 "ftpcmd.y" { yyval.num = MODE_B; ; break;} case 79: #line 772 "ftpcmd.y" { yyval.num = MODE_C; ; break;} case 80: #line 778 "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].str && strncmp((char *) yyvsp[0].str, "~", 1) == 0) { char **globlist; globlist = ftpglob(yyvsp[0].str); if (globerr) { reply(550, globerr); yyval.str = NULL; if (globlist) { blkfree(globlist); free((char *) globlist); } } else if (globlist && *globlist) { yyval.str = *globlist; blkfree(&globlist[1]); free((char *) globlist); } else { if (globlist) { blkfree(globlist); free((char *) globlist); } errno = ENOENT; perror_reply(550, yyvsp[0].str); yyval.str = NULL; } free((char *) yyvsp[0].str); } else yyval.str = yyvsp[0].str; ; break;} case 82: #line 820 "ftpcmd.y" { register 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].num; multby = 1; ret = 0; while (dec) { digit = dec%10; if (digit > 7) { ret = -1; break; } ret += digit * multby; multby *= 8; dec /= 10; } yyval.num = ret; ; break;} case 83: #line 845 "ftpcmd.y" { if (logged_in) yyval.num = 1; else { reply(530, "Please login with USER and PASS."); yyval.num = 0; } ; break;} } /* the action file gets copied in in place of this dollarsign */ #line 543 "/usr/lib/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; yyacceptlab: /* YYACCEPT comes here. */ if (yyfree_stacks) { free (yyss); free (yyvs); #ifdef YYLSP_NEEDED free (yyls); #endif } return 0; yyabortlab: /* YYABORT comes here. */ if (yyfree_stacks) { free (yyss); free (yyvs); #ifdef YYLSP_NEEDED free (yyls); #endif } return 1; } #line 855 "ftpcmd.y" 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, "(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" }, { "AUTH", AUTH, STR1, 1, " auth-type" }, { "ADAT", ADAT, STR1, 1, " auth-data" }, { "PROT", PROT, ARGS, 1, " protection-level" }, { "PBSZ", PBSZ, STR1, 1, " buffer-size" }, { "CCC", CCC, ARGS, 1, "(clear command channel)" }, { "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 } }; 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 /* * 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 (auth_type) { char out[sizeof(cbuf)], *cp; int len, mic; if ((cs = strpbrk(s, " \r\n"))) *cs++ = '\0'; upper(s); #ifdef NOCONFIDENTIAL if (!strcmp(s, "CONF")) { reply(537, "CONF protected commands not supported."); *s = '\0'; return(s); } #endif if ((mic = strcmp(s, "ENC")) && strcmp(s, "MIC") #ifndef NOCONFIDENTIAL && strcmp(s, "CONF") #endif ) { reply(533, "All commands must be protected."); syslog(LOG_ERR, "Unprotected command received"); *s = '\0'; return(s); } else if (debug) syslog(LOG_INFO, "command %s received (mic=%d)", s, mic); /* Some paranoid sites may want to require that commands be encrypted. */ #ifdef PARANOID if (mic) { reply(533, "All commands must be ENC protected. Retry command under ENC."); *s = '\0'; return(s); } #endif /* PARANOID */ #ifdef NOENCRYPTION if (!mic) { reply(533, "ENC protection not supported. Retry command under MIC."); *s = '\0'; return(s); } #endif /* NOENCRYPTION */ if ((cp = strpbrk(cs, " \r\n"))) *cp = '\0'; if (kerror = radix_encode(cs, out, &len, 1)) { reply(501, "Can't base 64 decode argument to %s command (%s)", mic ? "MIC" : "ENC", radix_error(kerror)); *s = '\0'; return(s); } if (debug) syslog(LOG_DEBUG, "getline got %d from %s <%s>\n", len, cs, mic?"MIC":"ENC"); #ifdef SRP if (strcmp(auth_type, "SRP") == 0) { int outlen; if ((outlen = srp_decode (!mic, (unsigned char *) out, (unsigned char *) out, len)) < 0) { reply (535, "%s", mic ? "MIC command modified" : "ENC command garbled"); syslog (LOG_ERR,"%s failed", mic ? "MIC srp_decode" : "ENC srp_decode"); *s = '\0'; return s; } else { (void) memcpy (s, out, outlen); (void) strcpy (s+outlen, "\r\n"); } } #endif #ifdef KERBEROS if (strcmp(auth_type, "KERBEROS_V4") == 0) { if ((kerror = mic ? krb_rd_safe((unsigned char *)out, len, &kdata.session, &his_addr, &ctrl_addr, &msg_data) : krb_rd_priv((unsigned char *)out, len, schedule, &kdata.session, &his_addr, &ctrl_addr, &msg_data)) != KSUCCESS) { reply(535, "%s! (%s)", mic ? "MIC command modified" : "ENC command garbled", krb_get_err_text(kerror)); syslog(LOG_ERR,"%s failed: %s", mic ? "MIC krb_rd_safe" : "ENC krb_rd_priv", krb_get_err_text(kerror)); *s = '\0'; return(s); } (void) memcpy(s, msg_data.app_data, msg_data.app_length); (void) strcpy(s+msg_data.app_length, "\r\n"); } #endif /* KERBEROS */ #ifdef GSSAPI /* we know this is a MIC or ENC already, and out/len already has the bits */ if (strcmp(auth_type, "GSSAPI") == 0) { gss_buffer_desc xmit_buf, msg_buf; OM_uint32 maj_stat, min_stat; int conf_state; xmit_buf.value = out; xmit_buf.length = len; /* decrypt the message */ conf_state = !mic; maj_stat = gss_unseal(&min_stat, gcontext, &xmit_buf, &msg_buf, &conf_state, NULL); if (maj_stat == GSS_S_CONTINUE_NEEDED) { if (debug) syslog(LOG_DEBUG, "%s-unseal continued", mic?"MIC":"ENC"); reply(535, "%s-unseal continued, oops", mic?"MIC":"ENC"); *s = 0; return s; } if (maj_stat != GSS_S_COMPLETE) { reply_gss_error(535, maj_stat, min_stat, mic? "failed unsealing MIC message": "failed unsealing ENC message"); *s = 0; return s; } memcpy(s, msg_buf.value, msg_buf.length); strcpy(s+msg_buf.length-(s[msg_buf.length-1]?0:1), "\r\n"); gss_release_buffer(&min_stat, &msg_buf); } #endif /* GSSAPI */ /* Other auth types go here ... */ } #if defined KERBEROS || defined GSSAPI || defined SRP /* or other auth types */ else { /* !auth_type */ if ( (!(strncmp(s, "ENC", 3))) || (!(strncmp(s, "MIC", 3))) #ifndef NOCONFIDENTIAL || (!(strncmp(s, "CONF", 4))) #endif ) { reply(503, "Must perform authentication before sending protected commands"); *s = '\0'; return(s); } } #endif /* KERBEROS */ if (debug) syslog(LOG_DEBUG, "command: <%s>(%d)", s, strlen(s)); return (s); } static RETSIGTYPE toolong(sig) int sig; { time_t now; 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, *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); /* If getline() finds an error, the string is null */ if (*cbuf == '\0') continue; #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.str = 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.str = 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.str = 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.num = 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.num = 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); } } upper(s) register char *s; { while (*s != '\0') { if (islower(*s)) *s = toupper(*s); s++; } } 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); } help(ctab, s) struct tab *ctab; char *s; { register struct tab *c; register int width, NCMDS; char str[80]; 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) { register 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++) { strcpy(str, " "); for (j = 0; j < columns; j++) { c = ctab + j * lines + i; sprintf(&str[strlen(str)], "%s%c", c->name, c->implemented ? ' ' : '*'); if (c + lines >= &ctab[NCMDS]) break; w = strlen(c->name) + 1; while (w < width) { strcat(str, " "); w++; } } reply(0, "%s", str); } 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); } sizecmd(filename) char *filename; { switch (type) { case TYPE_L: case TYPE_I: { struct stat stbuf; if (stat(filename, &stbuf) < 0 || (stbuf.st_mode&S_IFMT) != S_IFREG) reply(550, "%s: not a plain file.", filename); else reply(213, "%lu", stbuf.st_size); break;} case TYPE_A: { FILE *fin; register int c; register long count; struct stat stbuf; fin = fopen(filename, "r"); if (fin == NULL) { perror_reply(550, filename); return; } if (fstat(fileno(fin), &stbuf) < 0 || (stbuf.st_mode&S_IFMT) != S_IFREG) { 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, "%ld", count); break;} default: reply(504, "SIZE not implemented for Type %c.", "?AEIL"[type]); } }