mirror of
https://gitlab.rtems.org/rtems/rtos/rtems.git
synced 2025-11-16 12:34:45 +00:00
Remove getcwd()
This function is provided by Newlib since 2000. Update #3409.
This commit is contained in:
Sebastian Huber
@@ -137,7 +137,6 @@ librtemscpu_a_SOURCES += libcsupport/src/ftruncate.c
|
|||||||
librtemscpu_a_SOURCES += libcsupport/src/ftrylockfile.c
|
librtemscpu_a_SOURCES += libcsupport/src/ftrylockfile.c
|
||||||
librtemscpu_a_SOURCES += libcsupport/src/funlockfile.c
|
librtemscpu_a_SOURCES += libcsupport/src/funlockfile.c
|
||||||
librtemscpu_a_SOURCES += libcsupport/src/getchark.c
|
librtemscpu_a_SOURCES += libcsupport/src/getchark.c
|
||||||
librtemscpu_a_SOURCES += libcsupport/src/getcwd.c
|
|
||||||
librtemscpu_a_SOURCES += libcsupport/src/getdents.c
|
librtemscpu_a_SOURCES += libcsupport/src/getdents.c
|
||||||
librtemscpu_a_SOURCES += libcsupport/src/getegid.c
|
librtemscpu_a_SOURCES += libcsupport/src/getegid.c
|
||||||
librtemscpu_a_SOURCES += libcsupport/src/geteuid.c
|
librtemscpu_a_SOURCES += libcsupport/src/geteuid.c
|
||||||
|
|||||||
@@ -160,10 +160,6 @@ AC_MSG_RESULT([no])
|
|||||||
])
|
])
|
||||||
AC_LANG_POP(C)
|
AC_LANG_POP(C)
|
||||||
|
|
||||||
# Newlib's unix/ directory
|
|
||||||
AC_CHECK_FUNCS([getcwd])
|
|
||||||
# </FIXME>
|
|
||||||
|
|
||||||
# Check if the installed toolchain provides these headers
|
# Check if the installed toolchain provides these headers
|
||||||
# and error out if not.
|
# and error out if not.
|
||||||
AC_CHECK_HEADERS([errno.h sched.h semaphore.h sys/cdefs.h sys/queue.h tar.h threads.h],,
|
AC_CHECK_HEADERS([errno.h sched.h semaphore.h sys/cdefs.h sys/queue.h tar.h threads.h],,
|
||||||
|
|||||||
@@ -1,296 +0,0 @@
|
|||||||
/**
|
|
||||||
* @file
|
|
||||||
*
|
|
||||||
* @brief Get Current Working Directory
|
|
||||||
* @ingroup libcsupport
|
|
||||||
*/
|
|
||||||
|
|
||||||
/*
|
|
||||||
* Copyright (c) 1989, 1991 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.
|
|
||||||
*
|
|
||||||
* Copied from newlib 1.8.1. RTEMS can not build all of the contents
|
|
||||||
* of the UNIX directory but we need this routine.
|
|
||||||
*/
|
|
||||||
|
|
||||||
#if HAVE_CONFIG_H
|
|
||||||
#include "config.h"
|
|
||||||
#endif
|
|
||||||
|
|
||||||
#ifndef HAVE_GETCWD
|
|
||||||
|
|
||||||
/*
|
|
||||||
* Added these when moved to RTEMS
|
|
||||||
*/
|
|
||||||
|
|
||||||
#define _stat stat
|
|
||||||
#define _opendir opendir
|
|
||||||
#define _fstat fstat
|
|
||||||
#define _readdir readdir
|
|
||||||
#define _closedir closedir
|
|
||||||
|
|
||||||
#if defined(LIBC_SCCS) && !defined(lint)
|
|
||||||
static char sccsid[] = "@(#)getcwd.c 5.11 (Berkeley) 2/24/91";
|
|
||||||
#endif /* LIBC_SCCS and not lint */
|
|
||||||
|
|
||||||
#include <sys/stat.h>
|
|
||||||
#include <errno.h>
|
|
||||||
#include <dirent.h>
|
|
||||||
#include <stdio.h>
|
|
||||||
#include <stdlib.h>
|
|
||||||
#include <string.h>
|
|
||||||
#include <unistd.h>
|
|
||||||
#include <reent.h>
|
|
||||||
#include <_syslist.h>
|
|
||||||
|
|
||||||
#define bcopy(a,b,c) memmove (b,a,c)
|
|
||||||
|
|
||||||
#define ISDOT(dp) \
|
|
||||||
(dp->d_name[0] == '.' && (dp->d_name[1] == '\0' || \
|
|
||||||
(dp->d_name[1] == '.' && dp->d_name[2] == '\0')))
|
|
||||||
|
|
||||||
#ifndef _REENT_ONLY
|
|
||||||
|
|
||||||
char *
|
|
||||||
getcwd (
|
|
||||||
char *pt,
|
|
||||||
size_t size)
|
|
||||||
{
|
|
||||||
register struct dirent *dp;
|
|
||||||
register DIR *dir = 0;
|
|
||||||
register dev_t dev;
|
|
||||||
register ino_t ino;
|
|
||||||
register int first;
|
|
||||||
register char *bpt, *bup;
|
|
||||||
struct stat s;
|
|
||||||
dev_t root_dev;
|
|
||||||
ino_t root_ino;
|
|
||||||
size_t ptsize, upsize;
|
|
||||||
int save_errno;
|
|
||||||
char *ept, *eup, *up;
|
|
||||||
|
|
||||||
/*
|
|
||||||
* If no buffer specified by the user, allocate one as necessary.
|
|
||||||
* If a buffer is specified, the size has to be non-zero. The path
|
|
||||||
* is built from the end of the buffer backwards.
|
|
||||||
*/
|
|
||||||
|
|
||||||
if (pt)
|
|
||||||
{
|
|
||||||
ptsize = 0;
|
|
||||||
if (!size)
|
|
||||||
{
|
|
||||||
errno = EINVAL;
|
|
||||||
return (char *) NULL;
|
|
||||||
}
|
|
||||||
ept = pt + size;
|
|
||||||
}
|
|
||||||
else
|
|
||||||
{
|
|
||||||
if (!(pt = (char *) malloc (ptsize = 1024 - 4)))
|
|
||||||
{
|
|
||||||
return (char *) NULL;
|
|
||||||
}
|
|
||||||
ept = pt + ptsize;
|
|
||||||
}
|
|
||||||
bpt = ept - 1;
|
|
||||||
*bpt = '\0';
|
|
||||||
|
|
||||||
/*
|
|
||||||
* Allocate bytes (1024 - malloc space) for the string of "../"'s.
|
|
||||||
* Should always be enough (it's 340 levels). If it's not, allocate
|
|
||||||
* as necessary. Special * case the first stat, it's ".", not "..".
|
|
||||||
*/
|
|
||||||
|
|
||||||
if (!(up = (char *) malloc (upsize = 1024 - 4)))
|
|
||||||
{
|
|
||||||
goto err;
|
|
||||||
}
|
|
||||||
eup = up + MAXPATHLEN;
|
|
||||||
bup = up;
|
|
||||||
up[0] = '.';
|
|
||||||
up[1] = '\0';
|
|
||||||
|
|
||||||
/* Save root values, so know when to stop. */
|
|
||||||
if (stat ("/", &s))
|
|
||||||
goto err;
|
|
||||||
root_dev = s.st_dev;
|
|
||||||
root_ino = s.st_ino;
|
|
||||||
|
|
||||||
errno = 0; /* XXX readdir has no error return. */
|
|
||||||
|
|
||||||
for (first = 1;; first = 0)
|
|
||||||
{
|
|
||||||
/* Stat the current level. */
|
|
||||||
if (_stat (up, &s))
|
|
||||||
goto err;
|
|
||||||
|
|
||||||
/* Save current node values. */
|
|
||||||
ino = s.st_ino;
|
|
||||||
dev = s.st_dev;
|
|
||||||
|
|
||||||
/* Check for reaching root. */
|
|
||||||
if (root_dev == dev && root_ino == ino)
|
|
||||||
{
|
|
||||||
*--bpt = '/';
|
|
||||||
/*
|
|
||||||
* It's unclear that it's a requirement to copy the
|
|
||||||
* path to the beginning of the buffer, but it's always
|
|
||||||
* been that way and stuff would probably break.
|
|
||||||
*/
|
|
||||||
(void) bcopy (bpt, pt, ept - bpt);
|
|
||||||
free (up);
|
|
||||||
return pt;
|
|
||||||
}
|
|
||||||
|
|
||||||
/*
|
|
||||||
* Build pointer to the parent directory, allocating memory
|
|
||||||
* as necessary. Max length is 3 for "../", the largest
|
|
||||||
* possible component name, plus a trailing NULL.
|
|
||||||
*/
|
|
||||||
|
|
||||||
if (bup + 3 + MAXNAMLEN + 1 >= eup)
|
|
||||||
{
|
|
||||||
if (!(up = (char *) realloc (up, upsize *= 2)))
|
|
||||||
{
|
|
||||||
goto err;
|
|
||||||
}
|
|
||||||
bup = up;
|
|
||||||
eup = up + upsize;
|
|
||||||
}
|
|
||||||
*bup++ = '.';
|
|
||||||
*bup++ = '.';
|
|
||||||
*bup = '\0';
|
|
||||||
|
|
||||||
/* Open and stat parent directory. */
|
|
||||||
if (!(dir = _opendir (up)) || _fstat (__dirfd (dir), &s))
|
|
||||||
goto err;
|
|
||||||
|
|
||||||
/* Add trailing slash for next directory. */
|
|
||||||
*bup++ = '/';
|
|
||||||
|
|
||||||
/*
|
|
||||||
* If it's a mount point, have to stat each element because
|
|
||||||
* the inode number in the directory is for the entry in the
|
|
||||||
* parent directory, not the inode number of the mounted file.
|
|
||||||
*/
|
|
||||||
|
|
||||||
save_errno = 0;
|
|
||||||
if (s.st_dev == dev)
|
|
||||||
{
|
|
||||||
for (;;)
|
|
||||||
{
|
|
||||||
if (!(dp = _readdir (dir)))
|
|
||||||
goto notfound;
|
|
||||||
if (dp->d_ino == ino)
|
|
||||||
break;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
else
|
|
||||||
for (;;)
|
|
||||||
{
|
|
||||||
if (!(dp = _readdir (dir)))
|
|
||||||
goto notfound;
|
|
||||||
if (ISDOT (dp))
|
|
||||||
continue;
|
|
||||||
bcopy (dp->d_name, bup, strlen (dp->d_name) + 1);
|
|
||||||
|
|
||||||
/* Save the first error for later. */
|
|
||||||
if (stat (up, &s))
|
|
||||||
{
|
|
||||||
if (!save_errno)
|
|
||||||
save_errno = errno;
|
|
||||||
errno = 0;
|
|
||||||
continue;
|
|
||||||
}
|
|
||||||
if (s.st_dev == dev && s.st_ino == ino)
|
|
||||||
break;
|
|
||||||
}
|
|
||||||
|
|
||||||
/*
|
|
||||||
* Check for length of the current name, preceding slash,
|
|
||||||
* leading slash.
|
|
||||||
*/
|
|
||||||
|
|
||||||
if (bpt - pt <= strlen (dp->d_name) + (first ? 1 : 2))
|
|
||||||
{
|
|
||||||
size_t len, off;
|
|
||||||
|
|
||||||
if (!ptsize)
|
|
||||||
{
|
|
||||||
errno = ERANGE;
|
|
||||||
goto err;
|
|
||||||
}
|
|
||||||
off = bpt - pt;
|
|
||||||
len = ept - bpt;
|
|
||||||
if (!(pt = (char *) realloc (pt, ptsize *= 2)))
|
|
||||||
{
|
|
||||||
goto err;
|
|
||||||
}
|
|
||||||
bpt = pt + off;
|
|
||||||
ept = pt + ptsize;
|
|
||||||
(void) bcopy (bpt, ept - len, len);
|
|
||||||
bpt = ept - len;
|
|
||||||
}
|
|
||||||
if (!first)
|
|
||||||
*--bpt = '/';
|
|
||||||
bpt -= strlen (dp->d_name);
|
|
||||||
bcopy (dp->d_name, bpt, strlen (dp->d_name));
|
|
||||||
(void) _closedir (dir);
|
|
||||||
dir = 0;
|
|
||||||
|
|
||||||
/* Truncate any file name. */
|
|
||||||
*bup = '\0';
|
|
||||||
}
|
|
||||||
|
|
||||||
notfound:
|
|
||||||
/*
|
|
||||||
* If readdir set errno, use it, not any saved error; otherwise,
|
|
||||||
* didn't find the current directory in its parent directory, set
|
|
||||||
* errno to ENOENT.
|
|
||||||
*/
|
|
||||||
|
|
||||||
if (!errno)
|
|
||||||
errno = save_errno ? save_errno : ENOENT;
|
|
||||||
/* FALLTHROUGH */
|
|
||||||
|
|
||||||
err:
|
|
||||||
if(dir)
|
|
||||||
(void) _closedir (dir);
|
|
||||||
if (ptsize)
|
|
||||||
free (pt);
|
|
||||||
free (up);
|
|
||||||
return (char *) NULL;
|
|
||||||
}
|
|
||||||
|
|
||||||
#endif /* _REENT_ONLY */
|
|
||||||
|
|
||||||
#endif
|
|
||||||
Reference in New Issue
Block a user