diff options
Diffstat (limited to 'src/util/slbt_realpath.c')
-rw-r--r-- | src/util/slbt_realpath.c | 88 |
1 files changed, 2 insertions, 86 deletions
diff --git a/src/util/slbt_realpath.c b/src/util/slbt_realpath.c index 9e97427..a21a986 100644 --- a/src/util/slbt_realpath.c +++ b/src/util/slbt_realpath.c @@ -4,31 +4,7 @@ /* 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 +#include "slibtool_realpath_impl.h" int slbt_util_real_path( int fdat, @@ -37,65 +13,5 @@ int slbt_util_real_path( 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; + return slbt_realpath(fdat,path,options,buf,buflen); } |