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Diffstat (limited to 'source/tools/acpisrc/asutils.c')
| -rw-r--r-- | source/tools/acpisrc/asutils.c | 234 |
1 files changed, 234 insertions, 0 deletions
diff --git a/source/tools/acpisrc/asutils.c b/source/tools/acpisrc/asutils.c new file mode 100644 index 0000000..a596ea8 --- /dev/null +++ b/source/tools/acpisrc/asutils.c @@ -0,0 +1,234 @@ + +/****************************************************************************** + * + * Module Name: asutils - common utilities + * + *****************************************************************************/ + +/* + * Copyright (C) 2000 - 2012, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include "acpisrc.h" + + +/****************************************************************************** + * + * FUNCTION: AsSkipUntilChar + * + * DESCRIPTION: Find the next instance of the input character + * + ******************************************************************************/ + +char * +AsSkipUntilChar ( + char *Buffer, + char Target) +{ + + while (*Buffer != Target) + { + if (!*Buffer) + { + return NULL; + } + + Buffer++; + } + + return (Buffer); +} + + +/****************************************************************************** + * + * FUNCTION: AsSkipPastChar + * + * DESCRIPTION: Find the next instance of the input character, return a buffer + * pointer to this character+1. + * + ******************************************************************************/ + +char * +AsSkipPastChar ( + char *Buffer, + char Target) +{ + + while (*Buffer != Target) + { + if (!*Buffer) + { + return NULL; + } + + Buffer++; + } + + Buffer++; + + return (Buffer); +} + + +/****************************************************************************** + * + * FUNCTION: AsReplaceData + * + * DESCRIPTION: This function inserts and removes data from the file buffer. + * if more data is inserted than is removed, the data in the buffer + * is moved to make room. If less data is inserted than is removed, + * the remaining data is moved to close the hole. + * + ******************************************************************************/ + +char * +AsReplaceData ( + char *Buffer, + UINT32 LengthToRemove, + char *BufferToAdd, + UINT32 LengthToAdd) +{ + UINT32 BufferLength; + + + /* + * Buffer is a string, so the length must include the terminating zero + */ + BufferLength = strlen (Buffer) + 1; + + if (LengthToRemove != LengthToAdd) + { + /* + * Move some of the existing data + * 1) If adding more bytes than removing, make room for the new data + * 2) if removing more bytes than adding, delete the extra space + */ + if (LengthToRemove > 0) + { + Gbl_MadeChanges = TRUE; + memmove ((Buffer + LengthToAdd), (Buffer + LengthToRemove), (BufferLength - LengthToRemove)); + } + } + + /* + * Now we can move in the new data + */ + if (LengthToAdd > 0) + { + Gbl_MadeChanges = TRUE; + memmove (Buffer, BufferToAdd, LengthToAdd); + } + + return (Buffer + LengthToAdd); +} + + +/****************************************************************************** + * + * FUNCTION: AsInsertData + * + * DESCRIPTION: This function inserts and removes data from the file buffer. + * if more data is inserted than is removed, the data in the buffer + * is moved to make room. If less data is inserted than is removed, + * the remaining data is moved to close the hole. + * + ******************************************************************************/ + +char * +AsInsertData ( + char *Buffer, + char *BufferToAdd, + UINT32 LengthToAdd) +{ + UINT32 BufferLength; + + + if (LengthToAdd > 0) + { + /* + * Buffer is a string, so the length must include the terminating zero + */ + BufferLength = strlen (Buffer) + 1; + + /* + * Move some of the existing data + * 1) If adding more bytes than removing, make room for the new data + * 2) if removing more bytes than adding, delete the extra space + */ + Gbl_MadeChanges = TRUE; + memmove ((Buffer + LengthToAdd), Buffer, BufferLength); + + /* + * Now we can move in the new data + */ + memmove (Buffer, BufferToAdd, LengthToAdd); + } + + return (Buffer + LengthToAdd); +} + + +/****************************************************************************** + * + * FUNCTION: AsRemoveData + * + * DESCRIPTION: This function inserts and removes data from the file buffer. + * if more data is inserted than is removed, the data in the buffer + * is moved to make room. If less data is inserted than is removed, + * the remaining data is moved to close the hole. + * + ******************************************************************************/ + +char * +AsRemoveData ( + char *StartPointer, + char *EndPointer) +{ + UINT32 BufferLength; + + + /* + * Buffer is a string, so the length must include the terminating zero + */ + BufferLength = strlen (EndPointer) + 1; + + Gbl_MadeChanges = TRUE; + memmove (StartPointer, EndPointer, BufferLength); + + return (StartPointer); +} + |
