1 %{ 2 /* 3 * CDDL HEADER START 4 * 5 * The contents of this file are subject to the terms of the 6 * Common Development and Distribution License (the "License"). 7 * You may not use this file except in compliance with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 23 /* 24 * Copyright 2008 Sun Microsystems, Inc. All rights reserved. 25 * Use is subject to license terms. 26 */ 27 28 29 #pragma error_messages(off, E_BLOCK_DECL_UNUSED) 30 #pragma error_messages(off, E_EQUALITY_NOT_ASSIGNMENT) 31 #pragma error_messages(off, E_FUNC_RET_MAYBE_IGNORED2) 32 #pragma error_messages(off, E_STMT_NOT_REACHED) 33 34 #include <libintl.h> 35 #include <string.h> 36 37 #include "svccfg.h" 38 #include "svccfg_grammar.h" 39 40 /* 41 * We need to undefine lex's input, unput, and output macros so that references 42 * to these call the functions we provide at the end of this source file, 43 * instead of the default versions based on libc's stdio. 44 */ 45 #ifdef input 46 #undef input 47 #endif 48 49 #ifdef unput 50 #undef unput 51 #endif 52 53 #ifdef output 54 #undef output 55 #endif 56 57 static int input(void); 58 static void unput(int); 59 static void output(int); 60 61 int parens = 0; 62 63 extern int yyerror(const char *); 64 65 %} 66 67 /* 68 * Since command tokens are only valid at the beginning of the command (or 69 * after help), we'll only return them in the INITIAL state, and report them 70 * as SCV_WORDs afterwards. 71 */ 72 %Start WORD 73 74 %% 75 76 #.*$ ; /* comments */ 77 78 <INITIAL>validate { BEGIN WORD; return (SCC_VALIDATE); } 79 <INITIAL>import { BEGIN WORD; return (SCC_IMPORT); } 80 <INITIAL>export { BEGIN WORD; return (SCC_EXPORT); } 81 <INITIAL>archive { BEGIN WORD; return (SCC_ARCHIVE); } 82 <INITIAL>restore { BEGIN WORD; return (SCC_RESTORE); } 83 <INITIAL>apply { BEGIN WORD; return (SCC_APPLY); } 84 <INITIAL>extract { BEGIN WORD; return (SCC_EXTRACT); } 85 <INITIAL>repository { BEGIN WORD; return (SCC_REPOSITORY); } 86 <INITIAL>inventory { BEGIN WORD; return (SCC_INVENTORY); } 87 <INITIAL>set { BEGIN WORD; return (SCC_SET); } 88 <INITIAL>end { BEGIN WORD; return (SCC_END); } 89 <INITIAL>exit { BEGIN WORD; return (SCC_END); } 90 <INITIAL>quit { BEGIN WORD; return (SCC_END); } 91 <INITIAL>help { return (SCC_HELP); } 92 93 <INITIAL>list { BEGIN WORD; return (SCC_LIST); } 94 <INITIAL>add { BEGIN WORD; return (SCC_ADD); } 95 <INITIAL>delete { BEGIN WORD; return (SCC_DELETE); } 96 <INITIAL>select { BEGIN WORD; return (SCC_SELECT); } 97 <INITIAL>unselect { BEGIN WORD; return (SCC_UNSELECT); } 98 99 <INITIAL>listpg { BEGIN WORD; return (SCC_LISTPG); } 100 <INITIAL>addpg { BEGIN WORD; return (SCC_ADDPG); } 101 <INITIAL>delpg { BEGIN WORD; return (SCC_DELPG); } 102 <INITIAL>delhash { BEGIN WORD; return (SCC_DELHASH); } 103 <INITIAL>listprop { BEGIN WORD; return (SCC_LISTPROP); } 104 <INITIAL>setprop { BEGIN WORD; return (SCC_SETPROP); } 105 <INITIAL>delprop { BEGIN WORD; return (SCC_DELPROP); } 106 <INITIAL>editprop { BEGIN WORD; return (SCC_EDITPROP); } 107 <INITIAL>describe { BEGIN WORD; return (SCC_DESCRIBE); } 108 <INITIAL>addpropvalue { BEGIN WORD; return (SCC_ADDPROPVALUE); } 109 <INITIAL>delpropvalue { BEGIN WORD; return (SCC_DELPROPVALUE); } 110 <INITIAL>setenv { BEGIN WORD; return (SCC_SETENV); } 111 <INITIAL>unsetenv { BEGIN WORD; return (SCC_UNSETENV); } 112 113 <INITIAL>listsnap { BEGIN WORD; return (SCC_LISTSNAP); } 114 <INITIAL>selectsnap { BEGIN WORD; return (SCC_SELECTSNAP); } 115 <INITIAL>revert { BEGIN WORD; return (SCC_REVERT); } 116 <INITIAL>refresh { BEGIN WORD; return (SCC_REFRESH); } 117 118 [^ \t\n">=()]+ { 119 if ((yylval.str = strdup(yytext)) == NULL) { 120 yyerror(gettext("Out of memory")); 121 exit(UU_EXIT_FATAL); 122 } 123 124 return SCV_WORD; 125 } 126 127 \"([^"\\]|\\.)*\" { 128 /* 129 * double-quoted strings start at a 130 * double-quote, include characters other than 131 * double-quote and backslash, and 132 * backslashed-characters, and end with a 133 * double-quote. 134 */ 135 136 char *str, *cp; 137 int shift; 138 139 if ((str = strdup(yytext)) == NULL) { 140 yyerror(gettext("Out of memory")); 141 exit(UU_EXIT_FATAL); 142 } 143 144 /* Strip out the backslashes. */ 145 for (cp = str, shift = 0; *cp != '\0'; ++cp) { 146 if (*cp == '\\') { 147 ++cp; 148 149 /* 150 * This can't be null because 151 * the string always ends with 152 * a double-quote. 153 */ 154 155 ++shift; 156 *(cp - shift) = *cp; 157 } else if (shift != 0) 158 *(cp - shift) = *cp; 159 } 160 161 /* Nullify everything after trailing quote */ 162 *(cp - shift) = '\0'; 163 164 yylval.str = str; 165 return SCV_STRING; 166 } 167 168 \n { 169 est->sc_cmd_lineno++; 170 BEGIN INITIAL; 171 return (SCS_NEWLINE); 172 } 173 174 [ \t]+ ; 175 176 ">" { return SCS_REDIRECT; } 177 "=" { return SCS_EQUALS; } 178 "(" { ++parens; return SCS_LPAREN; } 179 ")" { --parens; return SCS_RPAREN; } 180 181 . { 182 uu_die(gettext("unrecognized character %s\n"), 183 yytext); 184 } 185 186 %% 187 188 int 189 yyerror(const char *s) 190 { 191 return (0); 192 } 193 194 static int 195 input(void) 196 { 197 static int saw_eof = 0; 198 199 int c = engine_cmd_getc(est); 200 201 /* 202 * To ensure input is terminated, slip in a newline on EOF. 203 */ 204 if (c == EOF) { 205 if (saw_eof) 206 return (0); 207 208 saw_eof = 1; 209 return ('\n'); 210 } else 211 saw_eof = 0; 212 213 if (c == '\n') 214 yylineno++; 215 216 return (c); 217 } 218 219 static void 220 unput(int c) 221 { 222 if (c == '\n') 223 yylineno--; 224 225 (void) engine_cmd_ungetc(est, c == 0 ? EOF : c); 226 } 227 228 static void 229 output(int c) 230 { 231 char ch = c; 232 engine_cmd_nputs(est, &ch, sizeof (ch)); 233 } 234