/* Copyright (C) 2004 Manuel Novoa III * * GNU Library General Public License (LGPL) version 2 or later. * * Dedicated to Toni. See uClibc/DEDICATION.mjn3 for details. */ #include "_stdio.h" libc_hidden_proto(fclose) #ifndef __DO_LARGEFILE # define FILEDES_ARG (-1) #endif FILE *freopen(const char * __restrict filename, const char * __restrict mode, register FILE * __restrict stream) { /* * ANSI/ISO allow (implementation-defined) change of mode for an * existing file if filename is NULL. It doesn't look like Linux * supports this, so we don't here. * * NOTE: Whether or not the stream is free'd on failure is unclear * w.r.t. ANSI/ISO. This implementation chooses to NOT free * the stream and associated buffer if they were dynamically * allocated. * NOTE: Previous versions of uClibc did free dynamic storage. * * TODO: Apparently linux allows setting append mode. Implement? */ unsigned short dynmode; register FILE *fp; __STDIO_AUTO_THREADLOCK_VAR; __STDIO_AUTO_THREADLOCK(stream); __STDIO_STREAM_VALIDATE(stream); /* First, flush and close, but don't deallocate, the stream. */ /* This also removes the stream for the open file list. */ dynmode = (stream->__modeflags & (__FLAG_FREEBUF|__FLAG_FREEFILE)); stream->__modeflags &= ~(__FLAG_FREEBUF|__FLAG_FREEFILE); /* Only call fclose on the stream if it is not already closed. */ if ((stream->__modeflags & (__FLAG_READONLY|__FLAG_WRITEONLY)) != (__FLAG_READONLY|__FLAG_WRITEONLY) ) { fclose(stream); /* Failures are ignored. */ } fp = _stdio_fopen(((intptr_t) filename), mode, stream, FILEDES_ARG); /* Reset the allocation flags. */ stream->__modeflags |= dynmode; __STDIO_AUTO_THREADUNLOCK(stream); return fp; } .git/log/package'>package/nspr/patches

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