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/*
* Copyright (C) Lucent Technologies 1997
* All Rights Reserved
*
* Permission to use, copy, modify, and distribute this software and
* its documentation for any purpose and without fee is hereby
* granted, provided that the above copyright notice appear in all
* copies and that both that the copyright notice and this
* permission notice and warranty disclaimer appear in supporting
* documentation, and that the name Lucent Technologies or any of
* its entities not be used in advertising or publicity pertaining
* to distribution of the software without specific, written prior
* permission.
*
* LUCENT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS.
* IN NO EVENT SHALL LUCENT OR ANY OF ITS ENTITIES BE LIABLE FOR ANY
* SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
* IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
* ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF
* THIS SOFTWARE.
*/
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2009 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
/* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
/* All Rights Reserved */
#include <stdio.h>
#include <ctype.h>
#include <signal.h>
#include <locale.h>
#include <libintl.h>
#include <stdarg.h>
#include <errno.h>
#include <values.h>
#include <langinfo.h>
#include "awk.h"
#include "y.tab.h"
char *version = "version Aug 27, 2018";
int dbg = 0;
Awkfloat srand_seed = 1;
char *cmdname; /* gets argv[0] for error messages */
char *lexprog; /* points to program argument if it exists */
int compile_time = 2; /* for error printing: */
/* 2 = cmdline, 1 = compile, 0 = running */
static char **pfile = NULL; /* program filenames from -f's */
static int npfile = 0; /* number of filenames */
static int curpfile = 0; /* current filename */
int safe = 0; /* 1 => "safe" mode */
int
main(int argc, char *argv[], char *envp[])
{
const char *fs = NULL;
/*
* At this point, numbers are still scanned as in
* the POSIX locale.
* (POSIX.2, volume 2, P867, L4742-4757)
*/
(void) setlocale(LC_ALL, "");
(void) setlocale(LC_NUMERIC, "C");
#if !defined(TEXT_DOMAIN) /* Should be defined by cc -D */
#define TEXT_DOMAIN "SYS_TEST" /* Use this only if it weren't */
#endif
(void) textdomain(TEXT_DOMAIN);
cmdname = argv[0];
if (argc == 1) {
(void) fprintf(stderr, gettext(
"Usage: %s [-f programfile | 'program'] [-Ffieldsep] "
"[-v var=value] [files]\n"), cmdname);
exit(1);
}
(void) signal(SIGFPE, fpecatch);
srand_seed = 1;
srand((unsigned int)srand_seed);
yyin = NULL;
symtab = makesymtab(NSYMTAB/NSYMTAB);
while (argc > 1 && argv[1][0] == '-' && argv[1][1] != '\0') {
if (strcmp(argv[1], "-version") == 0 ||
strcmp(argv[1], "--version") == 0) {
(void) printf("awk %s\n", version);
exit(0);
break;
}
if (strcmp(argv[1], "--") == 0) {
/* explicit end of args */
argc--;
argv++;
break;
}
switch (argv[1][1]) {
case 's':
if (strcmp(argv[1], "-safe") == 0)
safe = 1;
break;
case 'f': /* next argument is program filename */
if (argv[1][2] != 0) { /* arg is -fsomething */
pfile = realloc(pfile,
sizeof (char *) * (npfile + 1));
if (pfile == NULL)
FATAL("out of space in main");
pfile[npfile++] = &argv[1][2];
} else { /* arg is -f something */
argc--; argv++;
if (argc <= 1)
FATAL("no program filename");
pfile = realloc(pfile,
sizeof (char *) * (npfile + 1));
if (pfile == NULL)
FATAL("out of space in main");
pfile[npfile++] = argv[1];
}
break;
case 'F': /* set field separator */
if (argv[1][2] != 0) { /* arg is -Fsomething */
/* wart: t=>\t */
if (argv[1][2] == 't' && argv[1][3] == 0)
fs = "\t";
else if (argv[1][2] != 0)
fs = &argv[1][2];
} else { /* arg is -F something */
argc--; argv++;
if (argc > 1) {
/* wart: t=>\t */
if (argv[1][0] == 't' &&
argv[1][1] == 0)
fs = "\t";
else if (argv[1][0] != 0)
fs = &argv[1][0];
}
}
if (fs == NULL || *fs == '\0')
WARNING("field separator FS is empty");
break;
case 'v': /* -v a=1 to be done NOW. one -v for each */
if (argv[1][2] != 0) { /* arg is -vsomething */
if (isclvar(&argv[1][2]))
setclvar(&argv[1][2]);
else
FATAL("invalid -v option argument: %s",
&argv[1][2]);
} else { /* arg is -v something */
argc--; argv++;
if (argc <= 1)
FATAL("no variable name");
if (isclvar(argv[1]))
setclvar(argv[1]);
else
FATAL("invalid -v option argument: %s",
argv[1]);
}
break;
case 'd':
dbg = atoi(&argv[1][2]);
if (dbg == 0)
dbg = 1;
(void) printf("awk %s\n", version);
break;
default:
WARNING("unknown option %s ignored", argv[1]);
break;
}
argc--;
argv++;
}
/* argv[1] is now the first argument */
if (npfile == 0) { /* no -f; first argument is program */
if (argc <= 1) {
if (dbg)
exit(0);
FATAL("no program given");
}
dprintf(("program = |%s|\n", argv[1]));
lexprog = argv[1];
argc--;
argv++;
}
recinit(recsize);
syminit();
compile_time = 1;
argv[0] = cmdname; /* put prog name at front of arglist */
dprintf(("argc=%d, argv[0]=%s\n", argc, argv[0]));
arginit(argc, argv);
if (!safe)
envinit(envp);
(void) yyparse();
if (fs)
*FS = qstring(fs, '\0');
dprintf(("errorflag=%d\n", errorflag));
/*
* done parsing, so now activate the LC_NUMERIC
*/
(void) setlocale(LC_ALL, "");
if (errorflag == 0) {
compile_time = 0;
run(winner);
} else
bracecheck();
return (errorflag);
}
int
pgetc(void) /* get 1 character from awk program */
{
int c;
for (;;) {
if (yyin == NULL) {
if (curpfile >= npfile)
return (EOF);
yyin = (strcmp(pfile[curpfile], "-") == 0) ?
stdin : fopen(pfile[curpfile], "rF");
if (yyin == NULL) {
FATAL("can't open file %s", pfile[curpfile]);
}
lineno = 1;
}
if ((c = getc(yyin)) != EOF)
return (c);
if (yyin != stdin)
(void) fclose(yyin);
yyin = NULL;
curpfile++;
}
}
char *
cursource(void) /* current source file name */
{
if (curpfile < npfile)
return (pfile[curpfile]);
else
return (NULL);
}
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