freebsd-skq/contrib/nvi/ex/ex_mkexrc.c

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/*-
* Copyright (c) 1992, 1993, 1994
* The Regents of the University of California. All rights reserved.
* Copyright (c) 1992, 1993, 1994, 1995, 1996
* Keith Bostic. All rights reserved.
*
* See the LICENSE file for redistribution information.
*/
#include "config.h"
#ifndef lint
static const char sccsid[] = "$Id: ex_mkexrc.c,v 10.13 2001/06/25 15:19:17 skimo Exp $";
#endif /* not lint */
#include <sys/types.h>
#include <sys/queue.h>
#include <sys/stat.h>
#include <bitstring.h>
#include <errno.h>
#include <fcntl.h>
#include <limits.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "../common/common.h"
#include "pathnames.h"
/*
* ex_mkexrc -- :mkexrc[!] [file]
*
* Create (or overwrite) a .exrc file with the current info.
*
2015-04-10 13:26:05 +00:00
* PUBLIC: int ex_mkexrc(SCR *, EXCMD *);
*/
int
ex_mkexrc(SCR *sp, EXCMD *cmdp)
{
struct stat sb;
FILE *fp;
int fd, sverrno;
char *fname;
size_t flen;
switch (cmdp->argc) {
case 0:
fname = _PATH_EXRC;
break;
case 1:
INT2CHAR(sp, cmdp->argv[0]->bp, cmdp->argv[0]->len + 1,
fname, flen);
set_alt_name(sp, fname);
break;
default:
abort();
}
if (!FL_ISSET(cmdp->iflags, E_C_FORCE) && !stat(fname, &sb)) {
msgq_str(sp, M_ERR, fname,
"137|%s exists, not written; use ! to override");
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_str(sp, M_SYSERR, fname, "%s");
return (1);
}
if ((fp = fdopen(fd, "w")) == NULL) {
sverrno = errno;
(void)close(fd);
goto e2;
}
if (seq_save(sp, fp, "abbreviate ", SEQ_ABBREV) || ferror(fp))
goto e1;
if (seq_save(sp, fp, "map ", SEQ_COMMAND) || ferror(fp))
goto e1;
if (seq_save(sp, fp, "map! ", SEQ_INPUT) || ferror(fp))
goto e1;
if (opts_save(sp, fp) || ferror(fp))
goto e1;
if (fclose(fp)) {
sverrno = errno;
goto e2;
}
msgq_str(sp, M_INFO, fname, "138|New exrc file: %s");
return (0);
e1: sverrno = errno;
(void)fclose(fp);
e2: errno = sverrno;
msgq_str(sp, M_SYSERR, fname, "%s");
return (1);
}