+++ /dev/null
-/*\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.\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
- * 1. Redistributions of source code must retain the above copyright\r
- * notice, this list of conditions and the following disclaimer.\r
- * 2. 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
- * 3. 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 REGENTS AND CONTRIBUTORS ``AS IS'' AND\r
- * 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 REGENTS OR CONTRIBUTORS BE LIABLE\r
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL\r
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS\r
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)\r
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT\r
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY\r
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF\r
- * SUCH DAMAGE.\r
-\r
- $NetBSD: fgetstr.c,v 1.4 2006/11/24 19:46:58 christos Exp $\r
- fgetline.c 8.1 (Berkeley) 6/4/93\r
-*/\r
-\r
-/*-\r
- */\r
-#include <LibConfig.h>\r
-#include <sys/EfiCdefs.h>\r
-\r
-#include "namespace.h"\r
-\r
-#include <assert.h>\r
-#include <errno.h>\r
-#include <stdio.h>\r
-#include <stdlib.h>\r
-#include <string.h>\r
-#include "reentrant.h"\r
-#include "local.h"\r
-\r
-/*\r
- * Expand the line buffer. Return -1 on error.\r
-#ifdef notdef\r
- * The `new size' does not account for a terminating '\0',\r
- * so we add 1 here.\r
-#endif\r
- */\r
-int\r
-__slbexpand(FILE *fp, size_t newsize)\r
-{\r
- void *p;\r
-\r
-#ifdef notdef\r
- ++newsize;\r
-#endif\r
- _DIAGASSERT(fp != NULL);\r
- if(fp == NULL) {\r
- errno = EINVAL;\r
- return (-1);\r
- }\r
-\r
- if ((size_t)fp->_lb._size >= newsize)\r
- return (0);\r
- if ((p = realloc(fp->_lb._base, newsize)) == NULL)\r
- return (-1);\r
- fp->_lb._base = p;\r
- fp->_lb._size = (int)newsize;\r
- return (0);\r
-}\r
-\r
-/*\r
- * Get an input line. The returned pointer often (but not always)\r
- * points into a stdio buffer. Fgetline does not alter the text of\r
- * the returned line (which is thus not a C string because it will\r
- * not necessarily end with '\0'), but does allow callers to modify\r
- * it if they wish. Thus, we set __SMOD in case the caller does.\r
- */\r
-char *\r
-__fgetstr(FILE *fp, size_t *lenp, int sep)\r
-{\r
- unsigned char *p;\r
- size_t len;\r
- size_t off;\r
-\r
- _DIAGASSERT(fp != NULL);\r
- _DIAGASSERT(lenp != NULL);\r
- if(fp == NULL) {\r
- errno = EINVAL;\r
- return (NULL);\r
- }\r
-\r
- /* make sure there is input */\r
- if (fp->_r <= 0 && __srefill(fp)) {\r
- *lenp = 0;\r
- return (NULL);\r
- }\r
-\r
- /* look for a newline in the input */\r
- if ((p = memchr((void *)fp->_p, sep, (size_t)fp->_r)) != NULL) {\r
- char *ret;\r
-\r
- /*\r
- * Found one. Flag buffer as modified to keep fseek from\r
- * `optimising' a backward seek, in case the user stomps on\r
- * the text.\r
- */\r
- p++; /* advance over it */\r
- ret = (char *)fp->_p;\r
- *lenp = len = p - fp->_p;\r
- fp->_flags |= __SMOD;\r
- fp->_r -= (int)len;\r
- fp->_p = p;\r
- return (ret);\r
- }\r
-\r
- /*\r
- * We have to copy the current buffered data to the line buffer.\r
- * As a bonus, though, we can leave off the __SMOD.\r
- *\r
- * OPTIMISTIC is length that we (optimistically) expect will\r
- * accommodate the `rest' of the string, on each trip through the\r
- * loop below.\r
- */\r
-#define OPTIMISTIC 80\r
-\r
- for (len = fp->_r, off = 0;; len += fp->_r) {\r
- size_t diff;\r
-\r
- /*\r
- * Make sure there is room for more bytes. Copy data from\r
- * file buffer to line buffer, refill file and look for\r
- * newline. The loop stops only when we find a newline.\r
- */\r
- if (__slbexpand(fp, len + OPTIMISTIC))\r
- goto error;\r
- (void)memcpy((void *)(fp->_lb._base + off), (void *)fp->_p,\r
- len - off);\r
- off = len;\r
- if (__srefill(fp))\r
- break; /* EOF or error: return partial line */\r
- if ((p = memchr((void *)fp->_p, sep, (size_t)fp->_r)) == NULL)\r
- continue;\r
-\r
- /* got it: finish up the line (like code above) */\r
- p++;\r
- diff = p - fp->_p;\r
- len += diff;\r
- if (__slbexpand(fp, len))\r
- goto error;\r
- (void)memcpy((void *)(fp->_lb._base + off), (void *)fp->_p,\r
- diff);\r
- fp->_r -= (int)diff;\r
- fp->_p = p;\r
- break;\r
- }\r
- *lenp = len;\r
-#ifdef notdef\r
- fp->_lb._base[len] = 0;\r
-#endif\r
- return ((char *)fp->_lb._base);\r
-\r
-error:\r
- *lenp = 0; /* ??? */\r
- return (NULL); /* ??? */\r
-}\r
projects / mirror_edk2.git / blobdiff