Differential D32943 Diff 104722 usr.bin/uuencode/bin2text2bin.c

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usr.bin/uuencode/bin2text2bin.c

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				/*-
				* SPDX-License-Identifier: BSD-2-Clause
				*
				* Copyright (c) 2021 The FreeBSD Foundation
				*
				* 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 AUTHOR 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 REGENTS 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/param.h>
				#include <libgen.h>
				#include <stdio.h>
				#include <stdlib.h>
				#include <string.h>

				extern int main_decode(int, char *[]);
				extern int main_encode(int, char *[]);

				static int search(const char *const);

				enum coders {
				uuencode, uudecode, b64encode, b64decode
				};

				int
				main(int argc, char *argv[])
				{
				const char *const progname = basename(argv[0]);
				int coder = search(progname);

				if (coder == -1 && argc > 1) {
				argc--;
				argv++;
				coder = search(basename(argv[0]));
				}
				switch (coder) {
				case uuencode:
				case b64encode:
				main_encode(argc, argv);
				break;
				case uudecode:
				case b64decode:
				main_decode(argc, argv);
				break;
				default:
				(void)fprintf(stderr,
				"usage: %s <uuencode \| uudecode> ...\n"
				" %s <b64encode \| b64decode> ...\n",
				progname, progname);
				exit(EXIT_FAILURE);
				}
				}

				static int
				search(const char *const progname)
				{
				#define DESIGNATE(item) [item] = #item
				const char *const known[] = {
				DESIGNATE(uuencode),
				delphijUnsubmitted Not Done Inline Actions I think this should be defined as a global constant as the mapping can also be used to translate the codec enum back to their names. delphij: I think this should be defined as a global constant as the mapping can also be used to…
				pstefAuthorUnsubmitted Done Inline Actions I don't disagree, but it wouldn't serve a purpose yet. For now I decided to limit the scope of its visibility. pstef: I don't disagree, but it wouldn't serve a purpose yet. For now I decided to limit the scope of…
				DESIGNATE(uudecode),
				DESIGNATE(b64encode),
				DESIGNATE(b64decode)
				};

				for (size_t i = 0; i < nitems(known); i++)
				if (strcmp(progname, known[i]) == 0)
				return ((int)i);
				return (-1);
				}