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 /* 24 * Copyright 2005 Sun Microsystems, Inc. All rights reserved. 25 * Use is subject to license terms. 26 */ 27 28 /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */ 29 /* All Rights Reserved */ 30 31 #pragma ident "%Z%%M% %I% %E% SMI" 32 33 #include <stdio.h> 34 #include <ctype.h> 35 #include <signal.h> 36 #include <locale.h> 37 #include <libintl.h> 38 #include <stdarg.h> 39 #include <errno.h> 40 #include <values.h> 41 #include <langinfo.h> 42 #include "awk.h" 43 #include "y.tab.h" 44 45 char *version = "version Oct 11, 1989"; 46 47 int dbg = 0; 48 uchar *cmdname; /* gets argv[0] for error messages */ 49 uchar *lexprog; /* points to program argument if it exists */ 50 int compile_time = 2; /* for error printing: */ 51 /* 2 = cmdline, 1 = compile, 0 = running */ 52 char radixpoint = '.'; 53 54 static uchar **pfile = NULL; /* program filenames from -f's */ 55 static int npfile = 0; /* number of filenames */ 56 static int curpfile = 0; /* current filename */ 57 58 int 59 main(int argc, char *argv[], char *envp[]) 60 { 61 uchar *fs = NULL; 62 char *nl_radix; 63 /* 64 * At this point, numbers are still scanned as in 65 * the POSIX locale. 66 * (POSIX.2, volume 2, P867, L4742-4757) 67 */ 68 (void) setlocale(LC_ALL, ""); 69 (void) setlocale(LC_NUMERIC, "C"); 70 #if !defined(TEXT_DOMAIN) /* Should be defined by cc -D */ 71 #define TEXT_DOMAIN "SYS_TEST" /* Use this only if it weren't */ 72 #endif 73 (void) textdomain(TEXT_DOMAIN); 74 cmdname = (uchar *)argv[0]; 75 if (argc == 1) { 76 (void) fprintf(stderr, gettext( 77 "Usage: %s [-f programfile | 'program'] [-Ffieldsep] " 78 "[-v var=value] [files]\n"), cmdname); 79 exit(1); 80 } 81 (void) signal(SIGFPE, fpecatch); 82 yyin = NULL; 83 syminit(); 84 while (argc > 1 && argv[1][0] == '-' && argv[1][1] != '\0') { 85 if (strcmp(argv[1], "--") == 0) { 86 /* explicit end of args */ 87 argc--; 88 argv++; 89 break; 90 } 91 switch (argv[1][1]) { 92 case 'f': /* next argument is program filename */ 93 argc--; 94 argv++; 95 if (argc <= 1) 96 ERROR "no program filename" FATAL; 97 pfile = realloc(pfile, sizeof (uchar *) * (npfile + 1)); 98 if (pfile == NULL) 99 ERROR "out of space in main" FATAL; 100 pfile[npfile++] = (uchar *)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 = (uchar *)&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 = (uchar *)&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((uchar *)(++argv)[1])) 126 setclvar((uchar *)argv[1]); 127 break; 128 case 'd': 129 dbg = atoi(&argv[1][2]); 130 if (dbg == 0) 131 dbg = 1; 132 (void) 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 = (uchar *)argv[1]; 147 argc--; 148 argv++; 149 } 150 compile_time = 1; 151 argv[0] = (char *)cmdname; /* put prog name at front of arglist */ 152 dprintf(("argc=%d, argv[0]=%s\n", argc, argv[0])); 153 arginit(argc, (uchar **)argv); 154 envinit((uchar **)envp); 155 yyparse(); 156 if (fs) 157 *FS = 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 return (errorflag); 173 } 174 175 int 176 pgetc(void) /* get program character */ 177 { 178 int c; 179 180 for (;;) { 181 if (yyin == NULL) { 182 if (curpfile >= npfile) 183 return (EOF); 184 yyin = (strcmp((char *)pfile[curpfile], "-") == 0) ? 185 stdin : fopen((char *)pfile[curpfile], "r"); 186 if (yyin == NULL) { 187 ERROR "can't open file %s", 188 pfile[curpfile] FATAL; 189 } 190 } 191 if ((c = getc(yyin)) != EOF) 192 return (c); 193 (void) fclose(yyin); 194 yyin = NULL; 195 curpfile++; 196 } 197 } 198