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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: admin.c,v 1.65 2015/01/16 06:40:06 deraadt Exp $	*/
/*
 * Copyright (c) 2004 Jean-Francois Brousseau <jfb@openbsd.org>
 * Copyright (c) 2005 Joris Vink <joris@openbsd.org>
 * Copyright (c) 2006, 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/types.h>
#include <sys/dirent.h>

#include <errno.h>
#include <fcntl.h>
#include <libgen.h>
#include <string.h>
#include <unistd.h>

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

#define ADM_EFLAG	0x01

void	cvs_admin_local(struct cvs_file *);

struct cvs_cmd cvs_cmd_admin = {
	CVS_OP_ADMIN, CVS_USE_WDIR | CVS_LOCK_REPO, "admin",
	{ "adm", "rcs" },
	"Administrative front-end for RCS",
	"[-ILqU] [-A oldfile] [-a users] [-b branch]\n"
	"[-c string] [-e [users]] [-k mode] [-l [rev]] [-m rev:msg]\n"
	"[-N tag[:rev]] [-n tag[:rev]] [-o rev] [-s state[:rev]]"
	"[-t file | str]\n"
	"[-u [rev]] file ...",
	"A:a:b::c:e::Ik:l::Lm:N:n:o:qs:t:Uu::",
	NULL,
	cvs_admin
};

static int	 runflags = 0;
static int	 lkmode = RCS_LOCK_INVAL;
static char	*alist, *comment, *elist, *logmsg, *logstr, *koptstr;
static char	*oldfilename, *orange, *state, *staterevstr;

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

	flags = CR_RECURSE_DIRS;

	alist = comment = elist = logmsg = logstr = NULL;
	oldfilename = orange = state = statestr = NULL;

	while ((ch = getopt(argc, argv, cvs_cmd_admin.cmd_opts)) != -1) {
		switch (ch) {
		case 'A':
			oldfilename = optarg;
			break;
		case 'a':
			alist = optarg;
			break;
		case 'b':
			break;
		case 'c':
			comment = optarg;
			break;
		case 'e':
			elist = optarg;
			runflags |= ADM_EFLAG;
			break;
		case 'I':
			break;
		case 'k':
			koptstr = optarg;
			kflag = rcs_kflag_get(koptstr);
			if (RCS_KWEXP_INVAL(kflag)) {
				cvs_log(LP_ERR,
				    "invalid RCS keyword expansion mode");
				fatal("%s", cvs_cmd_admin.cmd_synopsis);
			}
			break;
		case 'L':
			if (lkmode == RCS_LOCK_LOOSE) {
				cvs_log(LP_ERR, "-L and -U are incompatible");
				fatal("%s", cvs_cmd_admin.cmd_synopsis);
			}
			lkmode = RCS_LOCK_STRICT;
			break;
		case 'l':
			break;
		case 'm':
			logstr = optarg;
			break;
		case 'N':
			break;
		case 'n':
			break;
		case 'o':
			orange = optarg;
			break;
		case 'q':
			verbosity = 0;
			break;
		case 's':
			statestr = optarg;
			break;
		case 't':
			break;
		case 'U':
			if (lkmode == RCS_LOCK_STRICT) {
				cvs_log(LP_ERR, "-U and -L are incompatible");
				fatal("%s", cvs_cmd_admin.cmd_synopsis);
			}
			lkmode = RCS_LOCK_LOOSE;
			break;
		case 'u':
			break;
		default:
			fatal("%s", cvs_cmd_admin.cmd_synopsis);
		}
	}

	argc -= optind;
	argv += optind;

	if (argc == 0)
		fatal("%s", cvs_cmd_admin.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 (oldfilename != NULL)
			cvs_client_send_request("Argument -A%s", oldfilename);

		if (alist != NULL)
			cvs_client_send_request("Argument -a%s", alist);

		if (comment != NULL)
			cvs_client_send_request("Argument -c%s", comment);

		if (runflags & ADM_EFLAG)
			cvs_client_send_request("Argument -e%s",
			    (elist != NULL) ? elist : "");

		if (koptstr != NULL)
			cvs_client_send_request("Argument -k%s", koptstr);

		if (lkmode == RCS_LOCK_STRICT)
			cvs_client_send_request("Argument -L");
		else if (lkmode == RCS_LOCK_LOOSE)
			cvs_client_send_request("Argument -U");

		if (logstr != NULL)
			cvs_client_send_logmsg(logstr);

		if (orange != NULL)
			cvs_client_send_request("Argument -o%s", orange);

		if (statestr != NULL)
			cvs_client_send_request("Argument -s%s", statestr);

		if (verbosity == 0)
			cvs_client_send_request("Argument -q");

	} else {
		if (statestr != NULL) {
			if ((staterevstr = strchr(statestr, ':')) != NULL)
				*staterevstr++ = '\0';
			state = statestr;
			if (rcs_state_check(state) < 0) {
				cvs_log(LP_ERR, "invalid state `%s'", state);
				state = NULL;
			}
		}

		flags |= CR_REPO;
		cr.fileproc = cvs_admin_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("admin");
		cvs_client_get_responses();
	}

	return (0);
}

void
cvs_admin_local(struct cvs_file *cf)
{
	int i;
	RCSNUM *rev;

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

	cvs_file_classify(cf, cvs_directory_tag);

	if (cf->file_type == CVS_DIR) {
		if (verbosity > 1)
			cvs_log(LP_NOTICE, "Administrating %s", cf->file_name);
		return;
	}

	if (cf->file_ent == NULL)
		return;
	else if (cf->file_status == FILE_ADDED) {
		cvs_log(LP_ERR, "cannot admin newly added file `%s'",
		    cf->file_name);
		return;
	}

	if (cf->file_rcs == NULL) {
		cvs_log(LP_ERR, "lost RCS file for `%s'", cf->file_path);
		return;
	}

	if (verbosity > 0)
		cvs_printf("RCS file: %s\n", cf->file_rcs->rf_path);

	if (oldfilename != NULL) {
		struct cvs_file *ocf;
		struct rcs_access *acp;
		int ofd;
		char *d, *f, fpath[PATH_MAX], repo[PATH_MAX];


		if ((f = basename(oldfilename)) == NULL)
			fatal("cvs_admin_local: basename failed");
		if ((d = dirname(oldfilename)) == NULL)
			fatal("cvs_admin_local: dirname failed");

		cvs_get_repository_path(d, repo, PATH_MAX);

		(void)xsnprintf(fpath, PATH_MAX, "%s/%s", repo, f);

		if (strlcat(fpath, RCS_FILE_EXT, PATH_MAX) >= PATH_MAX)
			fatal("cvs_admin_local: truncation");

		if ((ofd = open(fpath, O_RDONLY)) == -1)
			fatal("cvs_admin_local: open: `%s': %s", fpath,
			    strerror(errno));

		/* XXX: S_ISREG() check instead of blindly using CVS_FILE? */
		ocf = cvs_file_get_cf(d, f, oldfilename, ofd, CVS_FILE, 0);

		ocf->file_rcs = rcs_open(fpath, ofd, RCS_READ, 0444);
		if (ocf->file_rcs == NULL)
			fatal("cvs_admin_local: rcs_open failed");

		TAILQ_FOREACH(acp, &(ocf->file_rcs->rf_access), ra_list)
			rcs_access_add(cf->file_rcs, acp->ra_name);

		cvs_file_free(ocf);
	}

	if (alist != NULL) {
		struct cvs_argvector *aargv;

		aargv = cvs_strsplit(alist, ",");
		for (i = 0; aargv->argv[i] != NULL; i++)
			rcs_access_add(cf->file_rcs, aargv->argv[i]);

		cvs_argv_destroy(aargv);
	}

	if (comment != NULL)
		rcs_comment_set(cf->file_rcs, comment);

	if (elist != NULL) {
		struct cvs_argvector *eargv;

		eargv = cvs_strsplit(elist, ",");
		for (i = 0; eargv->argv[i] != NULL; i++)
			rcs_access_remove(cf->file_rcs, eargv->argv[i]);

		cvs_argv_destroy(eargv);
	} else if (runflags & ADM_EFLAG) {
		struct rcs_access *rap;

		while (!TAILQ_EMPTY(&(cf->file_rcs->rf_access))) {
			rap = TAILQ_FIRST(&(cf->file_rcs->rf_access));
			TAILQ_REMOVE(&(cf->file_rcs->rf_access), rap, ra_list);
			xfree(rap->ra_name);
			xfree(rap);
		}
		/* no synced anymore */
		cf->file_rcs->rf_flags &= ~RCS_SYNCED;
	}

	/* Default `-kv' is accepted here. */
	if (kflag) {
		if (cf->file_rcs->rf_expand == NULL ||
		    strcmp(cf->file_rcs->rf_expand, koptstr) != 0)
			rcs_kwexp_set(cf->file_rcs, kflag);
	}

	if (logstr != NULL) {
		if ((logmsg = strchr(logstr, ':')) == NULL) {
			cvs_log(LP_ERR, "missing log message");
			return;
		}

		*logmsg++ = '\0';
		if ((rev = rcsnum_parse(logstr)) == NULL) {
			cvs_log(LP_ERR, "`%s' bad revision number", logstr);
			return;
		}

		if (rcs_rev_setlog(cf->file_rcs, rev, logmsg) < 0) {
			cvs_log(LP_ERR, "failed to set logmsg for `%s' to `%s'",
			    logstr, logmsg);
			rcsnum_free(rev);
			return;
		}

		rcsnum_free(rev);
	}

	if (orange != NULL) {
		struct rcs_delta *rdp, *nrdp;
		char b[CVS_REV_BUFSZ];

		cvs_revision_select(cf->file_rcs, orange);
		for (rdp = TAILQ_FIRST(&(cf->file_rcs->rf_delta));
		    rdp != NULL; rdp = nrdp) {
			nrdp = TAILQ_NEXT(rdp, rd_list);

			/*
			 * Delete selected revisions.
			 */
			if (rdp->rd_flags & RCS_RD_SELECT) {
				rcsnum_tostr(rdp->rd_num, b, sizeof(b));
				if (verbosity > 0)
					cvs_printf("deleting revision %s\n", b);

				(void)rcs_rev_remove(cf->file_rcs, rdp->rd_num);
			}
		}
	}

	if (state != NULL) {
		if (staterevstr != NULL) {
			if ((rev = rcsnum_parse(staterevstr)) == NULL) {
				cvs_log(LP_ERR, "`%s' bad revision number",
				    staterevstr);
				return;
			}
		} else if (cf->file_rcs->rf_head != NULL) {
			rev = rcsnum_alloc();
			rcsnum_cpy(cf->file_rcs->rf_head, rev, 0);
		} else {
			cvs_log(LP_ERR, "head revision missing");
			return;
		}

		(void)rcs_state_set(cf->file_rcs, rev, state);

		rcsnum_free(rev);
	}

	if (lkmode != RCS_LOCK_INVAL)
		(void)rcs_lock_setmode(cf->file_rcs, lkmode);

	rcs_write(cf->file_rcs);

	if (verbosity > 0)
		cvs_printf("done\n");
}