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[/] [openrisc/] [trunk/] [gnu-stable/] [newlib-1.18.0/] [newlib/] [libc/] [sys/] [linux/] [pread.c] - Rev 207
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/* Linux version of pread so we can have a weak_alias */ #include <_ansi.h> #include <unistd.h> #include <reent.h> #include <machine/weakalias.h> ssize_t _DEFUN (_pread_r, (rptr, fd, buf, n, off), struct _reent *rptr _AND int fd _AND _PTR buf _AND size_t n _AND off_t off) { off_t cur_pos; _READ_WRITE_RETURN_TYPE num_read; if ((cur_pos = _lseek_r (rptr, fd, 0, SEEK_CUR)) == (off_t)-1) return -1; if (_lseek_r (rptr, fd, off, SEEK_SET) == (off_t)-1) return -1; num_read = _read_r (rptr, fd, buf, n); if (_lseek_r (rptr, fd, cur_pos, SEEK_SET) == (off_t)-1) return -1; return (ssize_t)num_read; } #ifndef _REENT_ONLY ssize_t _DEFUN (__libc_pread, (fd, buf, n, off), int fd _AND _PTR buf _AND size_t n _AND off_t off) { return _pread_r (_REENT, fd, buf, n, off); } weak_alias(__libc_pread,pread) #endif
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