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 (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 22 /* 23 * Copyright 2009 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */ 28 /* All Rights Reserved */ 29 30 #include <stdio.h> 31 #include <ctype.h> 32 #include <signal.h> 33 #include <locale.h> 34 #include <libintl.h> 35 #include <stdarg.h> 36 #include <errno.h> 37 #include <values.h> 38 #include <langinfo.h> 39 #include "awk.h" 40 #include "y.tab.h" 41 42 char *version = "version Oct 11, 1989"; 43 44 int dbg = 0; 45 uchar *cmdname; /* gets argv[0] for error messages */ 46 uchar *lexprog; /* points to program argument if it exists */ 47 int compile_time = 2; /* for error printing: */ 48 /* 2 = cmdline, 1 = compile, 0 = running */ 49 char radixpoint = '.'; 50 51 static uchar **pfile = NULL; /* program filenames from -f's */ 52 static int npfile = 0; /* number of filenames */ 53 static int curpfile = 0; /* current filename */ 54 55 int 56 main(int argc, char *argv[], char *envp[]) 57 { 58 uchar *fs = NULL; 59 char *nl_radix; 60 /* 61 * At this point, numbers are still scanned as in 62 * the POSIX locale. 63 * (POSIX.2, volume 2, P867, L4742-4757) 64 */ 65 (void) setlocale(LC_ALL, ""); 66 (void) setlocale(LC_NUMERIC, "C"); 67 #if !defined(TEXT_DOMAIN) /* Should be defined by cc -D */ 68 #define TEXT_DOMAIN "SYS_TEST" /* Use this only if it weren't */ 69 #endif 70 (void) textdomain(TEXT_DOMAIN); 71 cmdname = (uchar *)argv[0]; 72 if (argc == 1) { 73 (void) fprintf(stderr, gettext( 74 "Usage: %s [-f programfile | 'program'] [-Ffieldsep] " 75 "[-v var=value] [files]\n"), cmdname); 76 exit(1); 77 } 78 (void) signal(SIGFPE, fpecatch); 79 yyin = NULL; 80 syminit(); 81 while (argc > 1 && argv[1][0] == '-' && argv[1][1] != '\0') { 82 if (strcmp(argv[1], "--") == 0) { 83 /* explicit end of args */ 84 argc--; 85 argv++; 86 break; 87 } 88 switch (argv[1][1]) { 89 case 'f': /* next argument is program filename */ 90 argc--; 91 argv++; 92 if (argc <= 1) 93 ERROR "no program filename" FATAL; 94 pfile = realloc(pfile, sizeof (uchar *) * (npfile + 1)); 95 if (pfile == NULL) 96 ERROR "out of space in main" FATAL; 97 pfile[npfile++] = (uchar *)argv[1]; 98 break; 99 case 'F': /* set field separator */ 100 if (argv[1][2] != 0) { /* arg is -Fsomething */ 101 /* wart: t=>\t */ 102 if (argv[1][2] == 't' && argv[1][3] == 0) 103 fs = (uchar *) "\t"; 104 else if (argv[1][2] != 0) 105 fs = (uchar *)&argv[1][2]; 106 } else { /* arg is -F something */ 107 argc--; argv++; 108 if (argc > 1) { 109 /* wart: t=>\t */ 110 if (argv[1][0] == 't' && 111 argv[1][1] == 0) 112 fs = (uchar *) "\t"; 113 else if (argv[1][0] != 0) 114 fs = (uchar *)&argv[1][0]; 115 } 116 } 117 if (fs == NULL || *fs == '\0') 118 ERROR "field separator FS is empty" WARNING; 119 break; 120 case 'v': /* -v a=1 to be done NOW. one -v for each */ 121 if (argv[1][2] == '\0' && --argc > 1 && 122 isclvar((uchar *)(++argv)[1])) 123 setclvar((uchar *)argv[1]); 124 break; 125 case 'd': 126 dbg = atoi(&argv[1][2]); 127 if (dbg == 0) 128 dbg = 1; 129 (void) printf("awk %s\n", version); 130 break; 131 default: 132 ERROR "unknown option %s ignored", argv[1] WARNING; 133 break; 134 } 135 argc--; 136 argv++; 137 } 138 /* argv[1] is now the first argument */ 139 if (npfile == 0) { /* no -f; first argument is program */ 140 if (argc <= 1) { 141 if (dbg) 142 exit(0); 143 ERROR "no program given" FATAL; 144 } 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 (void) 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