Return to init.c CVS log

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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: init.c,v 1.39 2015/01/16 06:40:07 deraadt Exp $	*/
/*
 * Copyright (c) 2004 Jean-Francois Brousseau <jfb@openbsd.org>
 * Copyright (c) 2006 Xavier Santolaria <xsa@openbsd.org>
 * 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. The name of the author may not be used to endorse or promote products
 *    derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED ``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 AUTHOR 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/stat.h>

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

#include "atomicio.h"
#include "cvs.h"
#include "init.h"
#include "remote.h"

void	cvs_init_local(void);

static void init_mkdir(const char *, mode_t);
static void init_mkfile(char *, const char **);

struct cvsroot_file {
	char			*cf_path;
	const char		**cf_content;
};

static const struct cvsroot_file cvsroot_files[] = {
	{ CVS_PATH_CHECKOUTLIST,	NULL			},
	{ CVS_PATH_COMMITINFO,		NULL			},
	{ CVS_PATH_CONFIG,		config_contents		},
	{ CVS_PATH_CVSWRAPPERS,		NULL			},
	{ CVS_PATH_EDITINFO,		NULL			},
	{ CVS_PATH_HISTORY,		NULL			},
	{ CVS_PATH_LOGINFO,		NULL			},
	{ CVS_PATH_MODULES,		NULL			},
	{ CVS_PATH_NOTIFY_R,		NULL			},
	{ CVS_PATH_RCSINFO,		NULL			},
	{ CVS_PATH_TAGINFO,		NULL			},
	{ CVS_PATH_VALTAGS,		NULL			},
	{ CVS_PATH_VERIFYMSG,		NULL			}
};

static const char *cvsroot_dirs[2] = {
	CVS_PATH_ROOT, CVS_PATH_EMPTYDIR
};

#define INIT_NFILES	(sizeof(cvsroot_files)/sizeof(cvsroot_files[0]))
#define INIT_NDIRS	(sizeof(cvsroot_dirs)/sizeof(cvsroot_dirs[0]))

struct cvs_cmd cvs_cmd_init = {
	CVS_OP_INIT, 0, "init",
	{ { 0 }, { 0 } },
	"Create a CVS repository if it doesn't exist",
	"",
	"",
	NULL,
	cvs_init
};

int
cvs_init(int argc, char **argv)
{
	if (argc > 1)
		fatal("init does not take any extra arguments");

	if (current_cvsroot->cr_method != CVS_METHOD_LOCAL) {
		cvs_client_connect_to_server();
		cvs_client_send_request("init %s", current_cvsroot->cr_dir);
		cvs_client_get_responses();
	} else
		cvs_init_local();

	return (0);
}

void
cvs_init_local(void)
{
	u_int i;
	char path[PATH_MAX];

	cvs_log(LP_TRACE, "cvs_init_local()");

	/* Create repository root directory if it does not already exist */
	init_mkdir(current_cvsroot->cr_dir, 0777);

	for (i = 0; i < INIT_NDIRS; i++) {
		(void)xsnprintf(path, PATH_MAX, "%s/%s",
		    current_cvsroot->cr_dir, cvsroot_dirs[i]);

		init_mkdir(path, 0777);
	}

	for (i = 0; i < INIT_NFILES; i++) {
		(void)xsnprintf(path, PATH_MAX, "%s/%s",
		    current_cvsroot->cr_dir, cvsroot_files[i].cf_path);

		init_mkfile(path, cvsroot_files[i].cf_content);
	}
}

static void
init_mkdir(const char *path, mode_t mode)
{
	struct stat st;

	if (mkdir(path, mode) == -1) {
		if (!(errno == EEXIST ||
		    (errno == EACCES && (stat(path, &st) == 0) &&
		    S_ISDIR(st.st_mode)))) {
			fatal("init_mkdir: mkdir: `%s': %s",
			    path, strerror(errno));
		}
	}
}

static void
init_mkfile(char *path, const char **content)
{
	BUF *b;
	size_t len;
	int fd, openflags, rcsflags;
	char rpath[PATH_MAX];
	const char **p;
	RCSFILE *file;

	openflags = O_WRONLY | O_CREAT | O_EXCL;
	rcsflags = RCS_WRITE | RCS_CREATE;

	if ((fd = open(path, openflags, 0444)) == -1)
		fatal("init_mkfile: open: `%s': %s", path, strerror(errno));

	if (content != NULL) {
		for (p = content; *p != NULL; ++p) {
			len = strlen(*p);
			if (atomicio(vwrite, fd, *p, len) != len)
				fatal("init_mkfile: atomicio failed");
		}
	}

	/*
	 * Make sure history and val-tags files are world-writable.
	 * Every user should be able to write to them.
	 */
	if (strcmp(strrchr(CVS_PATH_HISTORY, '/'), strrchr(path, '/')) == 0 ||
	    strcmp(strrchr(CVS_PATH_VALTAGS, '/'), strrchr(path, '/')) == 0) {
		(void)fchmod(fd, 0666);
		(void)close(fd);
		return;
	}

	(void)xsnprintf(rpath, PATH_MAX, "%s%s", path, RCS_FILE_EXT);

	if ((file = rcs_open(rpath, -1, rcsflags, 0444)) == NULL)
		fatal("failed to create RCS file for `%s'", path);

	b = buf_load(path);

	if (rcs_rev_add(file, RCS_HEAD_REV, "initial checkin", -1, NULL) == -1)
		fatal("init_mkfile: failed to add new revision");

	/* b buffer is free'd in rcs_deltatext_set */
	if (rcs_deltatext_set(file, file->rf_head, b) == -1)
		fatal("init_mkfile: failed to set delta");

	file->rf_flags &= ~RCS_SYNCED;
	rcs_close(file);
	(void)close(fd);
}