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//===-- fd_32.c -----------------------------------------------------------===//
//
// The KLEE Symbolic Virtual Machine
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// Contains 32bit definitions of posix file functions
//===---
#if __GNUC__
#if __x86_64__ || __ppc64__
#define ENV64
#else
#define ENV32
#endif
#endif
#include "klee/Config/Version.h"
#if defined(ENV32) || (LLVM_VERSION_CODE < LLVM_VERSION(3, 3))
#define _LARGEFILE64_SOURCE
#include "fd.h"
#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <sys/syscall.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <sys/time.h>
#include <sys/vfs.h>
#include <fcntl.h>
#include <stdarg.h>
#include <assert.h>
#include <unistd.h>
#include <dirent.h>
/***/
static void __stat64_to_stat(struct stat64 *a, struct stat *b) {
b->st_dev = a->st_dev;
b->st_ino = a->st_ino;
b->st_mode = a->st_mode;
b->st_nlink = a->st_nlink;
b->st_uid = a->st_uid;
b->st_gid = a->st_gid;
b->st_rdev = a->st_rdev;
b->st_size = a->st_size;
b->st_atime = a->st_atime;
b->st_mtime = a->st_mtime;
b->st_ctime = a->st_ctime;
b->st_blksize = a->st_blksize;
b->st_blocks = a->st_blocks;
#ifdef _BSD_SOURCE
b->st_atim.tv_nsec = a->st_atim.tv_nsec;
b->st_mtim.tv_nsec = a->st_mtim.tv_nsec;
b->st_ctim.tv_nsec = a->st_ctim.tv_nsec;
#endif
}
/***/
int open(const char *pathname, int flags, ...) {
mode_t mode = 0;
if (flags & O_CREAT) {
/* get mode */
va_list ap;
va_start(ap, flags);
mode = va_arg(ap, mode_t);
va_end(ap);
}
return __fd_open(pathname, flags, mode);
}
int openat(int fd, const char *pathname, int flags, ...) {
mode_t mode = 0;
if (flags & O_CREAT) {
/* get mode */
va_list ap;
va_start(ap, flags);
mode = va_arg(ap, mode_t);
va_end(ap);
}
return __fd_openat(fd, pathname, flags, mode);
}
off_t lseek(int fd, off_t off, int whence) {
return (off_t) __fd_lseek(fd, off, whence);
}
int __xstat(int vers, const char *path, struct stat *buf) {
struct stat64 tmp;
int res = __fd_stat(path, &tmp);
__stat64_to_stat(&tmp, buf);
return res;
}
int stat(const char *path, struct stat *buf) {
struct stat64 tmp;
int res = __fd_stat(path, &tmp);
__stat64_to_stat(&tmp, buf);
return res;
}
int __lxstat(int vers, const char *path, struct stat *buf) {
struct stat64 tmp;
int res = __fd_lstat(path, &tmp);
__stat64_to_stat(&tmp, buf);
return res;
}
int lstat(const char *path, struct stat *buf) {
struct stat64 tmp;
int res = __fd_lstat(path, &tmp);
__stat64_to_stat(&tmp, buf);
return res;
}
int __fxstat(int vers, int fd, struct stat *buf) {
struct stat64 tmp;
int res = __fd_fstat(fd, &tmp);
__stat64_to_stat(&tmp, buf);
return res;
}
int fstat(int fd, struct stat *buf) {
struct stat64 tmp;
int res = __fd_fstat(fd, &tmp);
__stat64_to_stat(&tmp, buf);
return res;
}
int ftruncate(int fd, off_t length) {
return __fd_ftruncate(fd, length);
}
int statfs(const char *path, struct statfs *buf32) {
#if 0
struct statfs64 buf;
if (__fd_statfs(path, &buf) < 0)
return -1;
buf32->f_type = buf.f_type;
buf32->f_bsize = buf.f_bsize;
buf32->f_blocks = buf.f_blocks;
buf32->f_bfree = buf.f_bfree;
buf32->f_bavail = buf.f_bavail;
buf32->f_files = buf.f_files;
buf32->f_ffree = buf.f_ffree;
buf32->f_fsid = buf.f_fsid;
buf32->f_namelen = buf.f_namelen;
return 0;
#else
return __fd_statfs(path, buf32);
#endif
}
/* Based on uclibc version. We use getdents64 and then rewrite the
results over themselves, as dirent32s. */
ssize_t getdents(int fd, struct dirent *dirp, size_t nbytes) {
struct dirent64 *dp64 = (struct dirent64*) dirp;
ssize_t res = __fd_getdents(fd, dp64, nbytes);
if (res>0) {
struct dirent64 *end = (struct dirent64*) ((char*) dp64 + res);
while (dp64 < end) {
struct dirent *dp = (struct dirent *) dp64;
size_t name_len = (dp64->d_reclen -
(size_t) &((struct dirent64*) 0)->d_name);
dp->d_ino = dp64->d_ino;
dp->d_off = dp64->d_off;
dp->d_reclen = dp64->d_reclen;
dp->d_type = dp64->d_type;
memmove(dp->d_name, dp64->d_name, name_len);
dp64 = (struct dirent64*) ((char*) dp64 + dp->d_reclen);
}
}
return res;
}
int __getdents(unsigned int fd, struct dirent *dirp, unsigned int count)
__attribute__((alias("getdents")));
/* Forward to 64 versions (uclibc expects versions w/o asm specifier) */
__attribute__((weak)) int open64(const char *pathname, int flags, ...) {
mode_t mode = 0;
if (flags & O_CREAT) {
/* get mode */
va_list ap;
va_start(ap, flags);
mode = va_arg(ap, mode_t);
va_end(ap);
}
return __fd_open(pathname, flags, mode);
}
__attribute__((weak)) off64_t lseek64(int fd, off64_t off, int whence) {
return __fd_lseek(fd, off, whence);
}
__attribute__((weak)) int stat64(const char *path, struct stat64 *buf) {
return __fd_stat(path, buf);
}
__attribute__((weak)) int lstat64(const char *path, struct stat64 *buf) {
return __fd_lstat(path, buf);
}
__attribute__((weak)) int fstat64(int fd, struct stat64 *buf) {
return __fd_fstat(fd, buf);
}
#endif
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