+++ /dev/null
-/** @file\r
- Implementation of internal function to return the (stdio) flags for a given mode.\r
-\r
- Copyright (c) 2010, 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: flags.c,v 1.14 2003/08/07 16:43:23 agc Exp\r
- flags.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 <assert.h>\r
-#include <fcntl.h>\r
-#include <stdio.h>\r
-#include <errno.h>\r
-#include "reentrant.h"\r
-#include "local.h"\r
-\r
-/*\r
- * Return the (stdio) flags for a given mode. Store the flags\r
- * to be passed to an open() syscall through *optr.\r
- * Return 0 on error.\r
- */\r
-int\r
-__sflags(const char *mode, int *optr)\r
-{\r
- int ret, m, o;\r
-\r
- _DIAGASSERT(mode != NULL);\r
-\r
- switch (*mode++) {\r
-\r
- case 'r': /* open for reading */\r
- ret = __SRD;\r
- m = O_RDONLY;\r
- o = 0;\r
- break;\r
-\r
- case 'w': /* open for writing */\r
- ret = __SWR;\r
- m = O_WRONLY;\r
- o = O_CREAT | O_TRUNC;\r
- break;\r
-\r
- case 'a': /* open for appending */\r
- ret = __SWR;\r
- m = O_WRONLY;\r
- o = O_CREAT | O_APPEND;\r
- break;\r
-\r
- default: /* illegal mode */\r
- errno = EINVAL;\r
- return (0);\r
- }\r
-\r
- /*\r
- * [rwa]\+ or [rwa]b\+ means read and write\r
- * f means open only plain files.\r
- */\r
- for (; *mode; mode++)\r
- switch (*mode) {\r
- case '+':\r
- ret = __SRW;\r
- m = O_RDWR;\r
- break;\r
- case 'f':\r
- o |= O_NONBLOCK;\r
- break;\r
- case 'b':\r
- break;\r
- default: /* We could produce a warning here */\r
- break;\r
- }\r
-\r
- *optr = m | o;\r
- return (ret);\r
-}\r
projects / mirror_edk2.git / blobdiff