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2a940c1a22
with internal (_fpos_t and _off_t) datatypes when compiling newlib. * libc/include/sys/unistd.h: Declare _lseek using _off_t. * libc/reent/lseekr.c (_lseek_r): Use _off_t instead of off_t. * libc/stdio/fseeko.c (fseeko): Ditto. * libc/stdio/ftello.c (ftello): Ditto. * libc/stdio/stdio.c (__swrite): Ditto. (__sseek): Ditto. * libc/stdio/fgetpos.c (fgetpos): Use _fpos_t instead of fpos_t. * libc/stdio/fseek.c (fseek): Ditto. * libc/stdio/fsetpos.c (fsetpos): Ditto. * libc/stdio/ftell.c (ftell): Ditto. * libc/stdio/local.h: Declare __sseek using _off_t.
64 lines
1.3 KiB
C
64 lines
1.3 KiB
C
/* Reentrant versions of lseek system call. */
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#include <reent.h>
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#include <unistd.h>
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#include <_syslist.h>
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/* Some targets provides their own versions of this functions. Those
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targets should define REENTRANT_SYSCALLS_PROVIDED in TARGET_CFLAGS. */
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#ifdef _REENT_ONLY
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#ifndef REENTRANT_SYSCALLS_PROVIDED
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#define REENTRANT_SYSCALLS_PROVIDED
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#endif
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#endif
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#ifndef REENTRANT_SYSCALLS_PROVIDED
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/* We use the errno variable used by the system dependent layer. */
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#undef errno
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extern int errno;
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/*
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FUNCTION
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<<_lseek_r>>---Reentrant version of lseek
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INDEX
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_lseek_r
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ANSI_SYNOPSIS
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#include <reent.h>
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off_t _lseek_r(struct _reent *<[ptr]>,
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int <[fd]>, off_t <[pos]>, int <[whence]>);
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TRAD_SYNOPSIS
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#include <reent.h>
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off_t _lseek_r(<[ptr]>, <[fd]>, <[pos]>, <[whence]>)
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struct _reent *<[ptr]>;
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int <[fd]>;
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off_t <[pos]>;
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int <[whence]>;
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DESCRIPTION
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This is a reentrant version of <<lseek>>. It
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takes a pointer to the global data block, which holds
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<<errno>>.
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*/
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_off_t
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_lseek_r (ptr, fd, pos, whence)
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struct _reent *ptr;
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int fd;
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_off_t pos;
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int whence;
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{
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_off_t ret;
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errno = 0;
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if ((ret = _lseek (fd, pos, whence)) == (_off_t) -1 && errno != 0)
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ptr->_errno = errno;
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return ret;
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}
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#endif /* ! defined (REENTRANT_SYSCALLS_PROVIDED) */
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