*/
/* Based in part on the files
* ./sysdeps/unix/sysv/linux/pwrite.c,
- * ./sysdeps/unix/sysv/linux/pread.c,
+ * ./sysdeps/unix/sysv/linux/pread.c,
* sysdeps/posix/pread.c
* sysdeps/posix/pwrite.c
* from GNU libc 2.2.5, but reworked considerably...
#include <sys/syscall.h>
#include <unistd.h>
-#ifndef __UCLIBC_HAS_LFS__
+#ifndef __UCLIBC_HAS_LFS__
# define off64_t off_t
#endif
void *, buf, size_t, count, off64_t, offset);
ssize_t __libc_pread(int fd, void *buf, size_t count, off_t offset)
-{
+{
return(__syscall_pread(fd, buf, count, (off64_t)offset));
}
weak_alias(__libc_pread,pread)
-# ifdef __UCLIBC_HAS_LFS__
+# ifdef __UCLIBC_HAS_LFS__
extern __typeof(pread64) __libc_pread64;
ssize_t __libc_pread64(int fd, void *buf, size_t count, off64_t offset)
-{
+{
return(__syscall_pread(fd, buf, count, offset));
}
weak_alias(__libc_pread64,pread64)
const void *, buf, size_t, count, off64_t, offset);
ssize_t __libc_pwrite(int fd, const void *buf, size_t count, off_t offset)
-{
+{
return(__syscall_pwrite(fd, buf, count, (off64_t)offset));
}
weak_alias(__libc_pwrite,pwrite)
-# ifdef __UCLIBC_HAS_LFS__
+# ifdef __UCLIBC_HAS_LFS__
extern __typeof(pwrite64) __libc_pwrite64;
ssize_t __libc_pwrite64(int fd, const void *buf, size_t count, off64_t offset)
-{
+{
return(__syscall_pwrite(fd, buf, count, offset));
}
weak_alias(__libc_pwrite64,pwrite64)
libc_hidden_proto(write)
libc_hidden_proto(lseek)
-static ssize_t __fake_pread_write(int fd, void *buf,
+static ssize_t __fake_pread_write(int fd, void *buf,
size_t count, off_t offset, int do_pwrite)
{
int save_errno;
ssize_t result;
off_t old_offset;
- /* Since we must not change the file pointer preserve the
+ /* Since we must not change the file pointer preserve the
* value so that we can restore it later. */
if ((old_offset=lseek(fd, 0, SEEK_CUR)) == (off_t) -1)
return -1;
result = read(fd, buf, count);
}
- /* Now we have to restore the position. If this fails we
+ /* Now we have to restore the position. If this fails we
* have to return this as an error. */
save_errno = errno;
if (lseek(fd, old_offset, SEEK_SET) == (off_t) -1)
return(result);
}
-# ifdef __UCLIBC_HAS_LFS__
+# ifdef __UCLIBC_HAS_LFS__
libc_hidden_proto(lseek64)
-static ssize_t __fake_pread_write64(int fd, void *buf,
+static ssize_t __fake_pread_write64(int fd, void *buf,
size_t count, off64_t offset, int do_pwrite)
{
int save_errno;
ssize_t result;
off64_t old_offset;
- /* Since we must not change the file pointer preserve the
+ /* Since we must not change the file pointer preserve the
* value so that we can restore it later. */
if ((old_offset=lseek64(fd, 0, SEEK_CUR)) == (off64_t) -1)
return -1;
/* Set to wanted position. */
- if (lseek64(fd, offset, SEEK_SET) == (off64_t) -1)
- return -1;
+ if (lseek64(fd, offset, SEEK_SET) == (off64_t) -1)
+ return -1;
if (do_pwrite==1) {
/* Write the data. */
}
weak_alias(__libc_pread,pread)
-# ifdef __UCLIBC_HAS_LFS__
+# ifdef __UCLIBC_HAS_LFS__
ssize_t __libc_pread64(int fd, void *buf, size_t count, off64_t offset)
-{
+{
return(__fake_pread_write64(fd, buf, count, offset, 0));
}
weak_alias(__libc_pread64,pread64)
}
weak_alias(__libc_pwrite,pwrite)
-# ifdef __UCLIBC_HAS_LFS__
+# ifdef __UCLIBC_HAS_LFS__
ssize_t __libc_pwrite64(int fd, const void *buf, size_t count, off64_t offset)
-{
+{
return(__fake_pread_write64(fd, (void*)buf, count, offset, 1));
}
weak_alias(__libc_pwrite64,pwrite64)