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/* $NetBSD: del.c,v 1.1 2016/10/01 18:37:15 kamil Exp $ */
/*-
* Copyright (c) 2016 The NetBSD Foundation, Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__RCSID("$NetBSD: del.c,v 1.1 2016/10/01 18:37:15 kamil Exp $");
#include <err.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "plist_getline.h"
#include "plist_tree.h"
int
main(int argc, char **argv)
{
int ch;
int iflag = 0;
char *buffer;
FILE *stream;
char *firstline;
int i;
setprogname(argv[0]);
while((ch = getopt(argc, argv, "i")) != -1) {
switch (ch) {
case 'i':
iflag = 1;
break;
default:
errx(EXIT_FAILURE, "Invalid parameter specified");
/* NOTREACHED */
}
}
argc -= optind;
argv += optind;
if (argc < 2)
errx(EXIT_FAILURE, "Missing arguments");
plist_tree_init();
/* No files specified - read from a file */
stream = fopen(argv[0], "r");
if (!stream) {
err(EXIT_FAILURE, "fopen");
}
/* Read entries and put into tree */
/* The first line is special */
if ((buffer = plist_getline(stream)) != NULL) {
firstline = buffer;
}
while ((buffer = plist_getline(stream)) != NULL) {
plist_tree_insert(buffer);
free(buffer);
}
/* Add entries from command line */
for (i = 1; i < argc; i++) {
plist_tree_remove(argv[i]);
}
/* Prepare for write */
if (iflag > 0) { /* If there is in-place mode, reopen the file */
/* Truncate file to 0 */
stream = freopen(argv[0], "w", stream);
if (!stream)
err(EXIT_FAILURE, "open");
/* Is this needed? */
rewind(stream);
} else { /* Set stream to stdout */
stream = stdout;
}
fprintf(stream, "%s\n", firstline);
plist_tree_dump(stream);
return EXIT_SUCCESS;
}
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