slash.c revision 7c478bd95313f5f23a4c958a745db2134aa03244
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (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 (c) 1984, 1986, 1987, 1988, 1989 AT&T */
/* All Rights Reserved */
#ident "%Z%%M% %I% %E% SMI" /* SVr4.0 1.1 */
#include <stdio.h>
extern char *optarg;
extern int optind;
main(argc, argv)
int argc;
char *argv[];
{
register int c, fromstr;
register char *sptr;
FILE *fp, *fopen();
char *ifile;
int errflag;
errflag = 0;
ifile = NULL;
while((c = getopt(argc, argv, "f:")) != EOF) {
switch(c) {
case 'f':
ifile = optarg;
break;
case '?':
errflag++;
break;
}
}
if (errflag)
exit(1);
if (ifile) { /* from a file */
if ((fp = fopen(ifile, "r")) == NULL)
exit(1);
fromstr = 0;
}
else if (optind == argc) { /* from stdin */
fp = stdin;
fromstr = 0;
}
else { /* from a string */
fromstr = 1;
sptr = argv[1];
}
for (; ;) {
if (fromstr)
c = *sptr++;
else
c = fgetc(fp);
switch(c) {
case '\\':
printf("\\\\");
break;
case '$':
printf("\\$");
break;
case '`':
printf("\\`");
break;
case '\'':
printf("\\'");
break;
case '"':
printf("\\\"");
break;
case '&':
printf("\\&");
break;
case '[':
printf("\\[");
break;
case ']':
printf("\\]");
break;
case '<':
printf("\\<");
break;
case '>':
printf("\\>");
break;
case ';':
printf("\\;");
break;
case '\0':
case EOF:
exit(0);
default:
putchar(c);
break;
}
}
}