115 lines
2.9 KiB
C
115 lines
2.9 KiB
C
/* $NetBSD: del.c,v 1.2 2021/05/11 09:24:17 wiz Exp $ */
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/*-
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* Copyright (c) 2016 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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#include <err.h>
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#include <fcntl.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include "plist_getline.h"
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#include "plist_tree.h"
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int
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main(int argc, char **argv)
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{
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int ch;
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int iflag = 0;
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char *buffer;
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FILE *stream;
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char *firstline;
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int i;
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setprogname(argv[0]);
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while((ch = getopt(argc, argv, "i")) != -1) {
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switch (ch) {
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case 'i':
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iflag = 1;
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break;
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default:
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errx(EXIT_FAILURE, "Invalid parameter specified");
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/* NOTREACHED */
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}
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}
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argc -= optind;
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argv += optind;
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if (argc < 2)
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errx(EXIT_FAILURE, "Missing arguments");
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plist_tree_init();
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/* No files specified - read from a file */
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stream = fopen(argv[0], "r");
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if (!stream) {
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err(EXIT_FAILURE, "fopen");
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}
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/* Read entries and put into tree */
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/* The first line is special */
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if ((buffer = plist_getline(stream)) != NULL) {
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firstline = buffer;
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}
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while ((buffer = plist_getline(stream)) != NULL) {
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plist_tree_insert(buffer);
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free(buffer);
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}
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/* Add entries from command line */
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for (i = 1; i < argc; i++) {
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plist_tree_remove(argv[i]);
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}
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/* Prepare for write */
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if (iflag > 0) { /* If there is in-place mode, reopen the file */
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/* Truncate file to 0 */
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stream = freopen(argv[0], "w", stream);
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if (!stream)
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err(EXIT_FAILURE, "open");
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/* Is this needed? */
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rewind(stream);
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} else { /* Set stream to stdout */
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stream = stdout;
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}
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fprintf(stream, "%s\n", firstline);
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plist_tree_dump(stream);
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return EXIT_SUCCESS;
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}
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