1 /* 2 * Copyright (C) Lucent Technologies 1997 3 * All Rights Reserved 4 * 5 * Permission to use, copy, modify, and distribute this software and 6 * its documentation for any purpose and without fee is hereby 7 * granted, provided that the above copyright notice appear in all 8 * copies and that both that the copyright notice and this 9 * permission notice and warranty disclaimer appear in supporting 10 * documentation, and that the name Lucent Technologies or any of 11 * its entities not be used in advertising or publicity pertaining 12 * to distribution of the software without specific, written prior 13 * permission. 14 * 15 * LUCENT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, 16 * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. 17 * IN NO EVENT SHALL LUCENT OR ANY OF ITS ENTITIES BE LIABLE FOR ANY 18 * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 19 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER 20 * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, 21 * ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF 22 * THIS SOFTWARE. 23 */ 24 25 /* 26 * CDDL HEADER START 27 * 28 * The contents of this file are subject to the terms of the 29 * Common Development and Distribution License (the "License"). 30 * You may not use this file except in compliance with the License. 31 * 32 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 33 * or http://www.opensolaris.org/os/licensing. 34 * See the License for the specific language governing permissions 35 * and limitations under the License. 36 * 37 * When distributing Covered Code, include this CDDL HEADER in each 38 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 39 * If applicable, add the following below this CDDL HEADER, with the 40 * fields enclosed by brackets "[]" replaced with your own identifying 41 * information: Portions Copyright [yyyy] [name of copyright owner] 42 * 43 * CDDL HEADER END 44 */ 45 46 /* 47 * Copyright 2009 Sun Microsystems, Inc. All rights reserved. 48 * Use is subject to license terms. 49 */ 50 51 /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */ 52 /* All Rights Reserved */ 53 54 #include <stdio.h> 55 #include <ctype.h> 56 #include <signal.h> 57 #include <locale.h> 58 #include <libintl.h> 59 #include <stdarg.h> 60 #include <errno.h> 61 #include <values.h> 62 #include <langinfo.h> 63 #include "awk.h" 64 #include "y.tab.h" 65 66 char *version = "version Aug 27, 2018"; 67 68 int dbg = 0; 69 Awkfloat srand_seed = 1; 70 char *cmdname; /* gets argv[0] for error messages */ 71 char *lexprog; /* points to program argument if it exists */ 72 int compile_time = 2; /* for error printing: */ 73 /* 2 = cmdline, 1 = compile, 0 = running */ 74 75 static char **pfile = NULL; /* program filenames from -f's */ 76 static int npfile = 0; /* number of filenames */ 77 static int curpfile = 0; /* current filename */ 78 79 int safe = 0; /* 1 => "safe" mode */ 80 81 int 82 main(int argc, char *argv[], char *envp[]) 83 { 84 const char *fs = NULL; 85 /* 86 * At this point, numbers are still scanned as in 87 * the POSIX locale. 88 * (POSIX.2, volume 2, P867, L4742-4757) 89 */ 90 (void) setlocale(LC_ALL, ""); 91 (void) setlocale(LC_NUMERIC, "C"); 92 #if !defined(TEXT_DOMAIN) /* Should be defined by cc -D */ 93 #define TEXT_DOMAIN "SYS_TEST" /* Use this only if it weren't */ 94 #endif 95 (void) textdomain(TEXT_DOMAIN); 96 cmdname = argv[0]; 97 if (argc == 1) { 98 (void) fprintf(stderr, gettext( 99 "Usage: %s [-f programfile | 'program'] [-Ffieldsep] " 100 "[-v var=value] [files]\n"), cmdname); 101 exit(1); 102 } 103 (void) signal(SIGFPE, fpecatch); 104 105 srand_seed = 1; 106 srand((unsigned int)srand_seed); 107 108 yyin = NULL; 109 symtab = makesymtab(NSYMTAB/NSYMTAB); 110 while (argc > 1 && argv[1][0] == '-' && argv[1][1] != '\0') { 111 if (strcmp(argv[1], "-version") == 0 || 112 strcmp(argv[1], "--version") == 0) { 113 (void) printf("awk %s\n", version); 114 exit(0); 115 break; 116 } 117 if (strcmp(argv[1], "--") == 0) { 118 /* explicit end of args */ 119 argc--; 120 argv++; 121 break; 122 } 123 switch (argv[1][1]) { 124 case 's': 125 if (strcmp(argv[1], "-safe") == 0) 126 safe = 1; 127 break; 128 case 'f': /* next argument is program filename */ 129 if (argv[1][2] != 0) { /* arg is -fsomething */ 130 pfile = realloc(pfile, 131 sizeof (char *) * (npfile + 1)); 132 if (pfile == NULL) 133 FATAL("out of space in main"); 134 pfile[npfile++] = &argv[1][2]; 135 } else { /* arg is -f something */ 136 argc--; argv++; 137 if (argc <= 1) 138 FATAL("no program filename"); 139 pfile = realloc(pfile, 140 sizeof (char *) * (npfile + 1)); 141 if (pfile == NULL) 142 FATAL("out of space in main"); 143 pfile[npfile++] = argv[1]; 144 } 145 break; 146 case 'F': /* set field separator */ 147 if (argv[1][2] != 0) { /* arg is -Fsomething */ 148 /* wart: t=>\t */ 149 if (argv[1][2] == 't' && argv[1][3] == 0) 150 fs = "\t"; 151 else if (argv[1][2] != 0) 152 fs = &argv[1][2]; 153 } else { /* arg is -F something */ 154 argc--; argv++; 155 if (argc > 1) { 156 /* wart: t=>\t */ 157 if (argv[1][0] == 't' && 158 argv[1][1] == 0) 159 fs = "\t"; 160 else if (argv[1][0] != 0) 161 fs = &argv[1][0]; 162 } 163 } 164 if (fs == NULL || *fs == '\0') 165 WARNING("field separator FS is empty"); 166 break; 167 case 'v': /* -v a=1 to be done NOW. one -v for each */ 168 if (argv[1][2] != 0) { /* arg is -vsomething */ 169 if (isclvar(&argv[1][2])) 170 setclvar(&argv[1][2]); 171 else 172 FATAL("invalid -v option argument: %s", 173 &argv[1][2]); 174 } else { /* arg is -v something */ 175 argc--; argv++; 176 if (argc <= 1) 177 FATAL("no variable name"); 178 if (isclvar(argv[1])) 179 setclvar(argv[1]); 180 else 181 FATAL("invalid -v option argument: %s", 182 argv[1]); 183 } 184 break; 185 case 'd': 186 dbg = atoi(&argv[1][2]); 187 if (dbg == 0) 188 dbg = 1; 189 (void) printf("awk %s\n", version); 190 break; 191 default: 192 WARNING("unknown option %s ignored", argv[1]); 193 break; 194 } 195 argc--; 196 argv++; 197 } 198 /* argv[1] is now the first argument */ 199 if (npfile == 0) { /* no -f; first argument is program */ 200 if (argc <= 1) { 201 if (dbg) 202 exit(0); 203 FATAL("no program given"); 204 } 205 dprintf(("program = |%s|\n", argv[1])); 206 lexprog = argv[1]; 207 argc--; 208 argv++; 209 } 210 recinit(recsize); 211 syminit(); 212 compile_time = 1; 213 argv[0] = cmdname; /* put prog name at front of arglist */ 214 dprintf(("argc=%d, argv[0]=%s\n", argc, argv[0])); 215 arginit(argc, argv); 216 if (!safe) 217 envinit(envp); 218 (void) yyparse(); 219 if (fs) 220 *FS = qstring(fs, '\0'); 221 dprintf(("errorflag=%d\n", errorflag)); 222 /* 223 * done parsing, so now activate the LC_NUMERIC 224 */ 225 (void) setlocale(LC_ALL, ""); 226 227 if (errorflag == 0) { 228 compile_time = 0; 229 run(winner); 230 } else 231 bracecheck(); 232 return (errorflag); 233 } 234 235 int 236 pgetc(void) /* get 1 character from awk program */ 237 { 238 int c; 239 240 for (;;) { 241 if (yyin == NULL) { 242 if (curpfile >= npfile) 243 return (EOF); 244 yyin = (strcmp(pfile[curpfile], "-") == 0) ? 245 stdin : fopen(pfile[curpfile], "rF"); 246 if (yyin == NULL) { 247 FATAL("can't open file %s", pfile[curpfile]); 248 } 249 lineno = 1; 250 } 251 if ((c = getc(yyin)) != EOF) 252 return (c); 253 if (yyin != stdin) 254 (void) fclose(yyin); 255 yyin = NULL; 256 curpfile++; 257 } 258 } 259 260 char * 261 cursource(void) /* current source file name */ 262 { 263 if (curpfile < npfile) 264 return (pfile[curpfile]); 265 else 266 return (NULL); 267 } 268