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Replace <sys/param.h> with <limits.h> and other less dirty headers where
possible.  Annotate <sys/param.h> lines with their current reasons.  Switch
to PATH_MAX, NGROUPS_MAX, HOST_NAME_MAX+1, LOGIN_NAME_MAX, etc.  Change
MIN() and MAX() to local definitions of MINIMUM() and MAXIMUM() where
sensible to avoid pulling in the pollution.  These are the files confirmed
through binary verification.
ok guenther, millert, doug (helped with the verification protocol)

/*	$OpenBSD: release.c,v 1.42 2015/01/16 06:40:07 deraadt Exp $	*/
/*-
 * Copyright (c) 2005-2007 Xavier Santolaria <xsa@openbsd.org>
 *
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, 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.
 */

#include <sys/stat.h>

#include <string.h>
#include <unistd.h>

#include "cvs.h"
#include "remote.h"

void	cvs_release_local(struct cvs_file *);

static void	release_check_files(struct cvs_file *);

static int	dflag = 0;
static int	files_altered = 0;

struct cvs_cmd cvs_cmd_release = {
	CVS_OP_RELEASE, CVS_USE_WDIR, "release",
	{ "re", "rel" },
	"Indicate that a Module is no longer in use",
	"[-d] dir...",
	"d",
	NULL,
	cvs_release
};

int
cvs_release(int argc, char **argv)
{
	int ch;
	int flags;
	struct cvs_recursion cr;

	flags = CR_REPO;

	while ((ch = getopt(argc, argv, cvs_cmd_release.cmd_opts)) != -1) {
		switch (ch) {
		case 'd':
			dflag = 1;
			break;
		default:
			fatal("%s", cvs_cmd_release.cmd_synopsis);
		}
	}

	argc -= optind;
	argv += optind;

	if (argc == 0)
		fatal("%s", cvs_cmd_release.cmd_synopsis);

	cr.enterdir = NULL;
	cr.leavedir = NULL;

	if (current_cvsroot->cr_method != CVS_METHOD_LOCAL) {
		cvs_client_connect_to_server();
		cr.fileproc = cvs_client_sendfile;

		if (dflag == 1)
			cvs_client_send_request("Argument -d");
	} else
		cr.fileproc = cvs_release_local;

	cr.flags = flags;

	cvs_file_run(argc, argv, &cr);

	if (current_cvsroot->cr_method != CVS_METHOD_LOCAL) {
		cvs_client_send_files(argv, argc);
		cvs_client_senddir(".");
		cvs_client_send_request("release");
		cvs_client_get_responses();
	}

	return (0);
}

void
cvs_release_local(struct cvs_file *cf)
{
	struct stat st;
	struct cvs_recursion cr;
	char *wdir, cwd[PATH_MAX];
	char *arg = ".";
	int saved_noexec;

	if (cf->file_type == CVS_FILE)
		return;

	cvs_log(LP_TRACE, "cvs_release_local(%s)", cf->file_path);

	cvs_file_classify(cf, cvs_directory_tag);

	if (cvs_server_active == 1) {
		cvs_history_add(CVS_HISTORY_RELEASE, cf, NULL);
		return;
	}

	if ((wdir = getcwd(cwd, sizeof(cwd))) == NULL)
		fatal("getcwd failed");

	if (cf->file_type == CVS_DIR) {
		if (!strcmp(cf->file_name, "."))
			return;

		/* chdir before updating the directory. */
		cvs_chdir(cf->file_path, 0);

		if (stat(CVS_PATH_CVSDIR, &st) == -1 || !S_ISDIR(st.st_mode)) {
			if (verbosity > 0)
				cvs_log(LP_ERR, "no repository directory: %s",
				    cf->file_path);
			return;
		}
	}

	/* Skip the interactive part if -Q is specified. */
	if (verbosity == 0)
		goto delete;

	saved_noexec = cvs_noexec;
	cvs_noexec = 1;

	cr.enterdir = NULL;
	cr.leavedir = NULL;
	cr.fileproc = cvs_update_local;
	cr.flags = CR_REPO | CR_RECURSE_DIRS;

	cvs_file_run(1, &arg, &cr);

	cvs_noexec = saved_noexec;

	cr.enterdir = NULL;
	cr.leavedir = NULL;
	cr.fileproc = release_check_files;
	cr.flags = CR_RECURSE_DIRS;

	cvs_file_run(1, &arg, &cr);

	(void)printf("You have [%d] altered files in this repository.\n",
	    files_altered);
	(void)printf("Are you sure you want to release %sdirectory `%s': ",
		(dflag == 1) ? "(and delete) " : "", cf->file_path);

	if (cvs_yesno() == -1) {
		(void)fprintf(stderr,
		    "** `%s' aborted by user choice.\n", cmdp->cmd_name);

		/* change back to original working dir */
		cvs_chdir(wdir, 0);

		return;
	}

	/* change back to original working dir */
	cvs_chdir(wdir, 0);

delete:
	if (dflag == 1) {
		if (cvs_rmdir(cf->file_path) != 0)
			fatal("cvs_release_local: cvs_rmdir failed");
	}
}

static void
release_check_files(struct cvs_file *cf)
{
	cvs_log(LP_TRACE, "release_check_files(%s)", cf->file_path);

	cvs_file_classify(cf, cvs_directory_tag);

	if (cf->file_status == FILE_MERGE ||
	    cf->file_status == FILE_ADDED ||
	    cf->file_status == FILE_PATCH ||
	    cf->file_status == FILE_CONFLICT)
		files_altered++;
}