1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * 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 * Copyright (c) 1999 by Sun Microsystems, Inc. 24 * All rights reserved. 25 */ 26 /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */ 27 /* All Rights Reserved */ 28 29 30 #pragma ident "%Z%%M% %I% %E% SMI" /* SVr4.0 2.12 */ 31 32 #include <stdio.h> 33 #include <ctype.h> 34 #include <signal.h> 35 #include <locale.h> 36 #include <libintl.h> 37 #include <stdarg.h> 38 #include <errno.h> 39 #include <values.h> 40 #include <langinfo.h> 41 #include "awk.h" 42 #include "y.tab.h" 43 44 char *version = "version Oct 11, 1989"; 45 46 int dbg = 0; 47 uchar *cmdname; /* gets argv[0] for error messages */ 48 extern FILE *yyin; /* lex input file */ 49 uchar *lexprog; /* points to program argument if it exists */ 50 extern int errorflag; /* non-zero if any syntax errors; set by yyerror */ 51 int compile_time = 2; /* for error printing: */ 52 /* 2 = cmdline, 1 = compile, 0 = running */ 53 54 uchar *pfile[20]; /* program filenames from -f's */ 55 int npfile = 0; /* number of filenames */ 56 int curpfile = 0; /* current filename */ 57 char radixpoint = '.'; 58 59 main(argc, argv, envp) 60 int argc; 61 uchar *argv[], *envp[]; 62 { 63 uchar *fs = NULL; 64 char *nl_radix; 65 extern void fpecatch(); 66 /* 67 * At this point, numbers are still scanned as in 68 * the POSIX locale. 69 * (POSIX.2, volume 2, P867, L4742-4757) 70 */ 71 (void) setlocale(LC_ALL, ""); 72 (void) setlocale(LC_NUMERIC, "C"); 73 #if !defined(TEXT_DOMAIN) /* Should be defined by cc -D */ 74 #define TEXT_DOMAIN "SYS_TEST" /* Use this only if it weren't */ 75 #endif 76 (void) textdomain(TEXT_DOMAIN); 77 cmdname = argv[0]; 78 if (argc == 1) { 79 fprintf(stderr, gettext( 80 "Usage: %s [-f programfile | 'program'] [-Ffieldsep] " 81 "[-v var=value] [files]\n"), cmdname); 82 exit(1); 83 } 84 signal(SIGFPE, fpecatch); 85 yyin = NULL; 86 syminit(); 87 while (argc > 1 && argv[1][0] == '-' && argv[1][1] != '\0') { 88 if (strcmp(argv[1], "--") == 0) { 89 /* explicit end of args */ 90 argc--; 91 argv++; 92 break; 93 } 94 switch (argv[1][1]) { 95 case 'f': /* next argument is program filename */ 96 argc--; 97 argv++; 98 if (argc <= 1) 99 ERROR "no program filename" FATAL; 100 pfile[npfile++] = argv[1]; 101 break; 102 case 'F': /* set field separator */ 103 if (argv[1][2] != 0) { /* arg is -Fsomething */ 104 /* wart: t=>\t */ 105 if (argv[1][2] == 't' && argv[1][3] == 0) 106 fs = (uchar *) "\t"; 107 else if (argv[1][2] != 0) 108 fs = &argv[1][2]; 109 } else { /* arg is -F something */ 110 argc--; argv++; 111 if (argc > 1) { 112 /* wart: t=>\t */ 113 if (argv[1][0] == 't' && 114 argv[1][1] == 0) 115 fs = (uchar *) "\t"; 116 else if (argv[1][0] != 0) 117 fs = &argv[1][0]; 118 } 119 } 120 if (fs == NULL || *fs == '\0') 121 ERROR "field separator FS is empty" WARNING; 122 break; 123 case 'v': /* -v a=1 to be done NOW. one -v for each */ 124 if (argv[1][2] == '\0' && --argc > 1 && 125 isclvar((++argv)[1])) 126 setclvar(argv[1]); 127 break; 128 case 'd': 129 dbg = atoi(&argv[1][2]); 130 if (dbg == 0) 131 dbg = 1; 132 printf("awk %s\n", version); 133 break; 134 default: 135 ERROR "unknown option %s ignored", argv[1] WARNING; 136 break; 137 } 138 argc--; 139 argv++; 140 } 141 /* argv[1] is now the first argument */ 142 if (npfile == 0) { /* no -f; first argument is program */ 143 if (argc <= 1) 144 ERROR "no program given" FATAL; 145 dprintf(("program = |%s|\n", argv[1])); 146 lexprog = argv[1]; 147 argc--; 148 argv++; 149 } 150 compile_time = 1; 151 argv[0] = cmdname; /* put prog name at front of arglist */ 152 dprintf(("argc=%d, argv[0]=%s\n", argc, argv[0])); 153 arginit(argc, argv); 154 envinit(envp); 155 yyparse(); 156 if (fs) 157 *FS = tostring(qstring(fs, '\0')); 158 dprintf(("errorflag=%d\n", errorflag)); 159 /* 160 * done parsing, so now activate the LC_NUMERIC 161 */ 162 (void) setlocale(LC_ALL, ""); 163 nl_radix = nl_langinfo(RADIXCHAR); 164 if (nl_radix) 165 radixpoint = *nl_radix; 166 167 if (errorflag == 0) { 168 compile_time = 0; 169 run(winner); 170 } else 171 bracecheck(); 172 exit(errorflag); 173 } 174 175 pgetc() /* get program character */ 176 { 177 int c; 178 179 for (;;) { 180 if (yyin == NULL) { 181 if (curpfile >= npfile) 182 return (EOF); 183 yyin = (strcmp((char *) pfile[curpfile], "-") == 0) ? 184 stdin : fopen((char *) pfile[curpfile], "r"); 185 if (yyin == NULL) 186 ERROR "can't open file %s", 187 pfile[curpfile] FATAL; 188 } 189 if ((c = getc(yyin)) != EOF) 190 return (c); 191 yyin = NULL; 192 curpfile++; 193 } 194 } 195