00001 /* 00002 * Copyright (C) 2001-2003 by egnite Software GmbH. All rights reserved. 00003 * 00004 * Redistribution and use in source and binary forms, with or without 00005 * modification, are permitted provided that the following conditions 00006 * are met: 00007 * 00008 * 1. Redistributions of source code must retain the above copyright 00009 * notice, this list of conditions and the following disclaimer. 00010 * 2. Redistributions in binary form must reproduce the above copyright 00011 * notice, this list of conditions and the following disclaimer in the 00012 * documentation and/or other materials provided with the distribution. 00013 * 3. Neither the name of the copyright holders nor the names of 00014 * contributors may be used to endorse or promote products derived 00015 * from this software without specific prior written permission. 00016 * 00017 * THIS SOFTWARE IS PROVIDED BY EGNITE SOFTWARE GMBH AND CONTRIBUTORS 00018 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 00019 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 00020 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL EGNITE 00021 * SOFTWARE GMBH OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 00022 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 00023 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS 00024 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 00025 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 00026 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF 00027 * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 00028 * SUCH DAMAGE. 00029 * 00030 * For additional information see http://www.ethernut.de/ 00031 * 00032 */ 00033 00034 /* 00035 * $Log: fopen.c,v $ 00036 * Revision 1.1.1.1 2003/05/09 14:40:26 haraldkipp 00037 * Initial using 3.2.1 00038 * 00039 * Revision 1.1 2003/02/04 17:49:05 harald 00040 * *** empty log message *** 00041 * 00042 */ 00043 00044 #include "nut_io.h" 00045 00046 #include <errno.h> 00047 #include <io.h> 00048 #include <fcntl.h> 00049 #include <stdlib.h> 00050 00055 00056 FILE *__iob[FOPEN_MAX] = { (FILE *) 1, (FILE *) 2, (FILE *) 3 }; 00057 00076 FILE *fopen(CONST char *name, CONST char *mode) 00077 { 00078 int mflags = _O_TEXT; 00079 u_char i; 00080 00081 /* 00082 * Translate file mode. 00083 */ 00084 if ((mflags = _fmode(mode)) == EOF) 00085 return 0; 00086 00087 for (i = 3; __iob[i]; i++) 00088 if (i >= FOPEN_MAX - 1) { 00089 errno = ENFILE; 00090 return 0; 00091 } 00092 00093 if ((__iob[i] = malloc(sizeof(FILE))) == 0) 00094 return 0; 00095 00096 if ((__iob[i]->iob_fd = _open(name, mflags)) == -1) { 00097 free(__iob[i]); 00098 __iob[i] = 0; 00099 return 0; 00100 } 00101 00102 __iob[i]->iob_mode = mflags; 00103 __iob[i]->iob_flags = 0; 00104 __iob[i]->iob_unget = 0; 00105 00106 return __iob[i]; 00107 } 00108