NetBSD/usr.bin/vi/ex/ex_mkexrc.c

131 lines
3.5 KiB
C

/*-
* Copyright (c) 1992, 1993, 1994
* The Regents of the University of California. 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. 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS 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.
*/
#ifndef lint
static char sccsid[] = "@(#)ex_mkexrc.c 8.14 (Berkeley) 8/17/94";
#endif /* not lint */
#include <sys/types.h>
#include <sys/queue.h>
#include <sys/stat.h>
#include <sys/time.h>
#include <bitstring.h>
#include <errno.h>
#include <fcntl.h>
#include <limits.h>
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <termios.h>
#include <unistd.h>
#include "compat.h"
#include <db.h>
#include <regex.h>
#include <pathnames.h>
#include "vi.h"
#include "excmd.h"
/*
* ex_mkexrc -- :mkexrc[!] [file]
*
* Create (or overwrite) a .exrc file with the current info.
*/
int
ex_mkexrc(sp, ep, cmdp)
SCR *sp;
EXF *ep;
EXCMDARG *cmdp;
{
struct stat sb;
FILE *fp;
int fd, sverrno;
char *fname;
switch (cmdp->argc) {
case 0:
fname = _PATH_EXRC;
break;
case 1:
fname = cmdp->argv[0]->bp;
set_alt_name(sp, fname);
break;
default:
abort();
}
if (!F_ISSET(cmdp, E_FORCE) && !stat(fname, &sb)) {
msgq(sp, M_ERR,
"%s exists, not written; use ! to override", fname);
return (1);
}
/* Create with max permissions of rw-r--r--. */
if ((fd = open(fname, O_CREAT | O_TRUNC | O_WRONLY,
S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH)) < 0) {
msgq(sp, M_SYSERR, fname);
return (1);
}
if ((fp = fdopen(fd, "w")) == NULL) {
sverrno = errno;
(void)close(fd);
errno = sverrno;
goto e2;
}
if (abbr_save(sp, fp) || ferror(fp))
goto e1;
if (map_save(sp, fp) || ferror(fp))
goto e1;
if (opts_save(sp, fp) || ferror(fp))
goto e1;
#ifndef NO_DIGRAPH
digraph_save(sp, fd);
#endif
if (fclose(fp))
goto e2;
msgq(sp, M_INFO, "New .exrc file: %s. ", fname);
return (0);
e1: sverrno = errno;
(void)fclose(fp);
errno = sverrno;
e2: msgq(sp, M_ERR, "%s: incomplete: %s", fname, strerror(errno));
return (1);
}