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/* makepath.c -- Ensure that a directory path exists.
Copyright (C) 1990, 2006-2007, 2010, 2014-2015 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 3, 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.
You should have received a copy of the GNU General Public
License along with this program; if not, write to the Free
Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301 USA. */
/* Written by David MacKenzie <djm@gnu.ai.mit.edu> and
Jim Meyering <meyering@cs.utexas.edu>. */
/* This copy of makepath is almost like the fileutils one, but has
changes for HPUX CDF's. Maybe the 2 versions of makepath can
come together again in the future. */
#include <system.h>
#include <paxlib.h>
#include <stdio.h>
#include <sys/types.h>
#include <sys/stat.h>
#include "cpiohdr.h"
#include "dstring.h"
#include "extern.h"
/* Ensure that the directory ARGPATH exists.
Remove any trailing slashes from ARGPATH before calling this function.
Make all directory components that don't already exist with
permissions 700.
If OWNER and GROUP are non-negative, make them the UID and GID of
created directories.
If VERBOSE_FMT_STRING is nonzero, use it as a printf format
string for printing a message after successfully making a directory,
with the name of the directory that was just made as an argument.
Return 0 if ARGPATH exists as a directory with the proper
ownership and permissions when done, otherwise 1. */
int
make_path (char *argpath,
uid_t owner,
gid_t group,
const char *verbose_fmt_string)
{
char *dirpath; /* A copy we can scribble NULs on. */
struct stat stats;
int retval = 0;
mode_t tmpmode;
mode_t invert_permissions;
int we_are_root = getuid () == 0;
dirpath = alloca (strlen (argpath) + 1);
strcpy (dirpath, argpath);
if (stat (dirpath, &stats))
{
tmpmode = MODE_RWX & ~ newdir_umask;
invert_permissions = we_are_root ? 0 : MODE_WXUSR & ~ tmpmode;
char *slash = dirpath;
while (*slash == '/')
slash++;
while ((slash = strchr (slash, '/')))
{
#ifdef HPUX_CDF
int iscdf;
iscdf = 0;
#endif
*slash = '\0';
if (stat (dirpath, &stats))
{
#ifdef HPUX_CDF
/* If this component of the pathname ends in `+' and is
followed by 2 `/'s, then this is a CDF. We remove the
`+' from the name and create the directory. Later
we will "hide" the directory. */
if ( (*(slash +1) == '/') && (*(slash -1) == '+') )
{
iscdf = 1;
*(slash -1) = '\0';
}
#endif
if (mkdir (dirpath, tmpmode ^ invert_permissions))
{
error (0, errno, _("cannot make directory `%s'"), dirpath);
return 1;
}
else
{
if (verbose_fmt_string != NULL)
error (0, 0, verbose_fmt_string, dirpath);
if (stat (dirpath, &stats))
stat_error (dirpath);
else
{
if (owner != -1)
stats.st_uid = owner;
if (group != -1)
stats.st_gid = group;
delay_set_stat (dirpath, &stats, invert_permissions);
}
#ifdef HPUX_CDF
if (iscdf)
{
/* If this is a CDF, "hide" the directory by setting
its hidden/setuid bit. Also add the `+' back to
its name (since once it's "hidden" we must refer
to as `name+' instead of `name'). */
chmod (dirpath, 04700);
*(slash - 1) = '+';
}
#endif
}
}
else if (!S_ISDIR (stats.st_mode))
{
error (0, 0, _("`%s' exists but is not a directory"), dirpath);
return 1;
}
*slash++ = '/';
/* Avoid unnecessary calls to `stat' when given
pathnames containing multiple adjacent slashes. */
while (*slash == '/')
slash++;
}
/* We're done making leading directories.
Make the final component of the path. */
if (mkdir (dirpath, tmpmode ^ invert_permissions))
{
/* In some cases, if the final component in dirpath was `.' then we
just got an EEXIST error from that last mkdir(). If that's
the case, ignore it. */
if ( (errno != EEXIST) ||
(stat (dirpath, &stats) != 0) ||
(!S_ISDIR (stats.st_mode) ) )
{
error (0, errno, _("cannot make directory `%s'"), dirpath);
return 1;
}
}
else if (stat (dirpath, &stats))
stat_error (dirpath);
else
{
if (owner != -1)
stats.st_uid = owner;
if (group != -1)
stats.st_gid = group;
delay_set_stat (dirpath, &stats, invert_permissions);
}
if (verbose_fmt_string != NULL)
error (0, 0, verbose_fmt_string, dirpath);
}
else
{
/* We get here if the entire path already exists. */
if (!S_ISDIR (stats.st_mode))
{
error (0, 0, _("`%s' exists but is not a directory"), dirpath);
return 1;
}
}
return retval;
}
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