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authormidipix <writeonce@midipix.org>2024-02-19 01:54:51 +0000
committermidipix <writeonce@midipix.org>2024-02-19 02:59:31 +0000
commit8dc63ddc326ec54709c580a400536fcc4ef62622 (patch)
tree2a019207f3ea1ae39273fa8246c0cae7e6341ca4 /src/helper/slbt_realpath.c
parent51c276fbf1686c340588660a754ea04e6099cd37 (diff)
downloadslibtool-8dc63ddc326ec54709c580a400536fcc4ef62622.tar.bz2
slibtool-8dc63ddc326ec54709c580a400536fcc4ef62622.tar.xz
library api's: _util_ (utility helper interfaces) namespace overhaul.
Diffstat (limited to 'src/helper/slbt_realpath.c')
-rw-r--r--src/helper/slbt_realpath.c101
1 files changed, 0 insertions, 101 deletions
diff --git a/src/helper/slbt_realpath.c b/src/helper/slbt_realpath.c
deleted file mode 100644
index 936a9eb..0000000
--- a/src/helper/slbt_realpath.c
+++ /dev/null
@@ -1,101 +0,0 @@
-/*******************************************************************/
-/* slibtool: a skinny libtool implementation, written in C */
-/* Copyright (C) 2016--2024 SysDeer Technologies, LLC */
-/* Released under the Standard MIT License; see COPYING.SLIBTOOL. */
-/*******************************************************************/
-
-#include <fcntl.h>
-#include <stdlib.h>
-#include <limits.h>
-#include <errno.h>
-#include <sys/stat.h>
-#include <slibtool/slibtool.h>
-
-#include "slibtool_driver_impl.h"
-#include "slibtool_readlink_impl.h"
-
-#ifdef HAVE_SYS_SYSCALL_H
-#include <sys/syscall.h>
-#endif
-
-#ifdef _MIDIPIX_ABI
-#include <sys/fs.h>
-#endif
-
-#ifndef ENOTSUP
-#define ENOTSUP EOPNOTSUPP
-#endif
-
-#ifdef SYS___realpathat
-extern long syscall(int, ...);
-#endif
-
-int slbt_realpath(
- int fdat,
- const char * path,
- int options,
- char * buf,
- size_t buflen)
-{
- int ret;
- int fd;
- int fdproc;
- struct stat st;
- struct stat stproc;
- char procfspath[36];
-
- /* common validation */
- if (!buf || (options & O_CREAT)) {
- errno = EINVAL;
- return -1;
- }
-
- /* framework-based wrapper */
-#ifdef _MIDIPIX_ABI
- return __fs_rpath(fdat,path,options,buf,buflen);
-#endif
-
-#ifdef SYS___realpathat
- return syscall(SYS___realpathat,fdat,path,buf,buflen,0);
-#endif
-
- /* buflen */
- if (buflen < PATH_MAX) {
- errno = ENOBUFS;
- return -1;
- }
-
- /* AT_FDCWD */
- if (fdat == AT_FDCWD) {
- return realpath(path,buf) ? 0 : -1;
- }
-
- /* /proc/self/fd */
- if ((fd = openat(fdat,path,options,0)) < 0)
- return -1;
-
- sprintf(procfspath,"/proc/self/fd/%d",fd);
-
- if (slbt_readlinkat(fdat,procfspath,buf,buflen)) {
- close(fd);
- return -1;
- }
-
- if ((fdproc = openat(AT_FDCWD,buf,options|O_NOFOLLOW,0)) < 0) {
- close(fd);
- errno = ELOOP;
- return -1;
- }
-
- ret = fstat(fd,&st) || fstat(fdproc,&stproc);
-
- close(fd);
- close(fdproc);
-
- if (ret || (st.st_dev != stproc.st_dev) || (st.st_ino != stproc.st_ino)) {
- errno = ENOTSUP;
- return -1;
- }
-
- return 0;
-}