mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-20 11:11:24 +00:00
126 lines
3.1 KiB
C
126 lines
3.1 KiB
C
/* mkrmdir.c -- BSD compatible directory functions for System V
|
|
Copyright (C) 1988, 1990 Free Software Foundation, Inc.
|
|
|
|
This program is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation; either version 2, or (at your option)
|
|
any later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details. */
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
#include "config.h"
|
|
#endif
|
|
|
|
#include <sys/types.h>
|
|
#include <sys/stat.h>
|
|
#include <errno.h>
|
|
#ifndef STDC_HEADERS
|
|
extern int errno;
|
|
#endif
|
|
|
|
/* mkdir and rmdir adapted from GNU tar. */
|
|
|
|
/* Make directory DPATH, with permission mode DMODE.
|
|
|
|
Written by Robert Rother, Mariah Corporation, August 1985
|
|
(sdcsvax!rmr or rmr@uscd). If you want it, it's yours.
|
|
|
|
Severely hacked over by John Gilmore to make a 4.2BSD compatible
|
|
subroutine. 11Mar86; hoptoad!gnu
|
|
|
|
Modified by rmtodd@uokmax 6-28-87 -- when making an already existing dir,
|
|
subroutine didn't return EEXIST. It does now. */
|
|
|
|
int
|
|
mkdir (dpath, dmode)
|
|
char *dpath;
|
|
int dmode;
|
|
{
|
|
int cpid, status;
|
|
struct stat statbuf;
|
|
|
|
if (stat (dpath, &statbuf) == 0)
|
|
{
|
|
errno = EEXIST; /* stat worked, so it already exists. */
|
|
return -1;
|
|
}
|
|
|
|
/* If stat fails for a reason other than non-existence, return error. */
|
|
if (! existence_error (errno))
|
|
return -1;
|
|
|
|
cpid = fork ();
|
|
switch (cpid)
|
|
{
|
|
case -1: /* Cannot fork. */
|
|
return -1; /* errno is set already. */
|
|
|
|
case 0: /* Child process. */
|
|
/* Cheap hack to set mode of new directory. Since this child
|
|
process is going away anyway, we zap its umask.
|
|
This won't suffice to set SUID, SGID, etc. on this
|
|
directory, so the parent process calls chmod afterward. */
|
|
status = umask (0); /* Get current umask. */
|
|
umask (status | (0777 & ~dmode)); /* Set for mkdir. */
|
|
execl ("/bin/mkdir", "mkdir", dpath, (char *) 0);
|
|
_exit (1);
|
|
|
|
default: /* Parent process. */
|
|
while (wait (&status) != cpid) /* Wait for kid to finish. */
|
|
/* Do nothing. */ ;
|
|
|
|
if (status & 0xFFFF)
|
|
{
|
|
errno = EIO; /* /bin/mkdir failed. */
|
|
return -1;
|
|
}
|
|
return chmod (dpath, dmode);
|
|
}
|
|
}
|
|
|
|
/* Remove directory DPATH.
|
|
Return 0 if successful, -1 if not. */
|
|
|
|
int
|
|
rmdir (dpath)
|
|
char *dpath;
|
|
{
|
|
int cpid, status;
|
|
struct stat statbuf;
|
|
|
|
if (stat (dpath, &statbuf) != 0)
|
|
return -1; /* stat set errno. */
|
|
|
|
if ((statbuf.st_mode & S_IFMT) != S_IFDIR)
|
|
{
|
|
errno = ENOTDIR;
|
|
return -1;
|
|
}
|
|
|
|
cpid = fork ();
|
|
switch (cpid)
|
|
{
|
|
case -1: /* Cannot fork. */
|
|
return -1; /* errno is set already. */
|
|
|
|
case 0: /* Child process. */
|
|
execl ("/bin/rmdir", "rmdir", dpath, (char *) 0);
|
|
_exit (1);
|
|
|
|
default: /* Parent process. */
|
|
while (wait (&status) != cpid) /* Wait for kid to finish. */
|
|
/* Do nothing. */ ;
|
|
|
|
if (status & 0xFFFF)
|
|
{
|
|
errno = EIO; /* /bin/rmdir failed. */
|
|
return -1;
|
|
}
|
|
return 0;
|
|
}
|
|
}
|