X-Git-Url: https://pd.if.org/git/?a=blobdiff_plain;f=functions%2Fstdio%2Ffreopen.c;h=9c49756d5e73dcdea7a4f89e53b5547deff06081;hb=b43055b06b74c0a45128531e4f18bef0c5a49efc;hp=682e3c6c1e8f4eee7e1839cf6e60ba2fb7f724dd;hpb=a7a8d2f1c85c2d7760d4d3479e90466cc3a81b04;p=pdclib diff --git a/functions/stdio/freopen.c b/functions/stdio/freopen.c index 682e3c6..9c49756 100644 --- a/functions/stdio/freopen.c +++ b/functions/stdio/freopen.c @@ -14,8 +14,13 @@ #include #include -struct _PDCLIB_file_t * freopen( const char * _PDCLIB_restrict filename, const char * _PDCLIB_restrict mode, struct _PDCLIB_file_t * _PDCLIB_restrict stream ) +struct _PDCLIB_file_t * freopen( + const char * _PDCLIB_restrict filename, + const char * _PDCLIB_restrict mode, + struct _PDCLIB_file_t * _PDCLIB_restrict stream ) { + flockfile( stream ); + unsigned int status = stream->status & ( _IONBF | _IOLBF | _IOFBF | _PDCLIB_FREEBUFFER | _PDCLIB_DELONCLOSE ); /* TODO: This function can change wide orientation of a stream */ if ( stream->status & _PDCLIB_FWRITE ) @@ -25,9 +30,11 @@ struct _PDCLIB_file_t * freopen( const char * _PDCLIB_restrict filename, const c if ( ( filename == NULL ) && ( stream->filename == NULL ) ) { /* TODO: Special handling for mode changes on std-streams */ + funlockfile( stream ); return NULL; } - _PDCLIB_close( stream->handle ); + stream->ops->close(stream->handle); + /* TODO: It is not nice to do this on a stream we just closed. It does not matter with the current implementation of clearerr(), but it might start to matter if someone replaced that implementation. @@ -49,16 +56,19 @@ struct _PDCLIB_file_t * freopen( const char * _PDCLIB_restrict filename, const c /* Allocate new buffer */ if ( ( stream->filename = (char *)malloc( strlen( filename ) ) ) == NULL ) { + funlockfile( stream ); return NULL; } strcpy( stream->filename, filename ); } if ( ( mode == NULL ) || ( filename[0] == '\0' ) ) { + funlockfile( stream ); return NULL; } if ( ( stream->status = _PDCLIB_filemode( mode ) ) == 0 ) { + funlockfile( stream ); return NULL; } /* Re-add the flags we saved above */ @@ -67,10 +77,13 @@ struct _PDCLIB_file_t * freopen( const char * _PDCLIB_restrict filename, const c stream->bufend = 0; stream->ungetidx = 0; /* TODO: Setting mbstate */ - if ( ( stream->handle = _PDCLIB_open( filename, stream->status ) ) == _PDCLIB_NOHANDLE ) + if ( ! _PDCLIB_open( &stream->handle, &stream->ops, filename, + stream->status ) ) { + funlockfile( stream ); return NULL; } + funlockfile( stream ); return stream; }