+++ /dev/null
-/** @file\r
- Implementation of fopen as declared in <stdio.h>.\r
-\r
- Copyright (c) 2010 - 2011, Intel Corporation. All rights reserved.<BR>\r
- This program and the accompanying materials are licensed and made available\r
- under the terms and conditions of the BSD License that accompanies this\r
- distribution. The full text of the license may be found at\r
- http://opensource.org/licenses/bsd-license.php.\r
-\r
- THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
- WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
-\r
- Copyright (c) 1990, 1993\r
- The Regents of the University of California. All rights reserved.\r
-\r
- This code is derived from software contributed to Berkeley by\r
- Chris Torek.\r
-\r
- Redistribution and use in source and binary forms, with or without\r
- modification, are permitted provided that the following conditions\r
- are met:\r
- - Redistributions of source code must retain the above copyright\r
- notice, this list of conditions and the following disclaimer.\r
- - Redistributions in binary form must reproduce the above copyright\r
- notice, this list of conditions and the following disclaimer in the\r
- documentation and/or other materials provided with the distribution.\r
- - Neither the name of the University nor the names of its contributors\r
- may be used to endorse or promote products derived from this software\r
- without specific prior written permission.\r
-\r
- THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"\r
- AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE\r
- IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE\r
- ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE\r
- LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR\r
- CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF\r
- SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS\r
- INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN\r
- CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\r
- ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\r
- POSSIBILITY OF SUCH DAMAGE.\r
-\r
- NetBSD: fopen.c,v 1.12 2003/08/07 16:43:24 agc Exp\r
- fopen.c 8.1 (Berkeley) 6/4/93"\r
-**/\r
-#include <LibConfig.h>\r
-#include <sys/EfiCdefs.h>\r
-\r
-#include <sys/types.h>\r
-#include <sys/stat.h>\r
-#include <assert.h>\r
-#include <fcntl.h>\r
-#include <stdio.h>\r
-#include <errno.h>\r
-#include <unistd.h>\r
-#include "reentrant.h"\r
-#include "local.h"\r
-\r
-FILE *\r
-fopen(const char *file, const char *mode)\r
-{\r
- FILE *fp;\r
- int f;\r
- int flags, oflags;\r
-\r
- _DIAGASSERT(file != NULL);\r
- if ((flags = __sflags(mode, &oflags)) == 0)\r
- return (NULL);\r
- if ((fp = __sfp()) == NULL)\r
- return (NULL);\r
- if ((f = open(file, oflags, DEFFILEMODE)) < 0)\r
- goto release;\r
- if (oflags & O_NONBLOCK) {\r
- struct stat st;\r
- if (fstat(f, &st) == -1) {\r
- int sverrno = errno;\r
- (void)close(f);\r
- errno = sverrno;\r
- goto release;\r
- }\r
- if (!S_ISREG(st.st_mode)) {\r
- (void)close(f);\r
- errno = EFTYPE;\r
- goto release;\r
- }\r
- }\r
- fp->_file = (short)f;\r
- fp->_flags = (unsigned short)flags;\r
- fp->_cookie = fp;\r
- fp->_read = __sread;\r
- fp->_write = __swrite;\r
- fp->_seek = __sseek;\r
- fp->_close = __sclose;\r
-\r
- /*\r
- * When opening in append mode, even though we use O_APPEND,\r
- * we need to seek to the end so that ftell() gets the right\r
- * answer. If the user then alters the seek pointer, or\r
- * the file extends, this will fail, but there is not much\r
- * we can do about this. (We could set __SAPP and check in\r
- * fseek and ftell.)\r
- */\r
- if (oflags & O_APPEND)\r
- (void) __sseek((void *)fp, (fpos_t)0, SEEK_END);\r
- return (fp);\r
-release:\r
- fp->_flags = 0; /* release */\r
- return (NULL);\r
-}\r
projects / mirror_edk2.git / blobdiff