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wj32
b962a69548
git-svn-id: svn://svn.code.sf.net/p/processhacker/code@5810 21ef857c-d57f-4fe0-8362-d861dc6d29cd
105 lines
2.6 KiB
C
105 lines
2.6 KiB
C
/*
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* "$Id: mxml-string.c 387 2009-04-18 17:05:52Z mike $"
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*
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* String functions for Mini-XML, a small XML-like file parsing library.
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*
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* Copyright 2003-2009 by Michael Sweet.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* Contents:
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*
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* _mxml_snprintf() - Format a string.
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* _mxml_strdup() - Duplicate a string.
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* _mxml_strdupf() - Format and duplicate a string.
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* _mxml_vsnprintf() - Format a string into a fixed size buffer.
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* _mxml_vstrdupf() - Format and duplicate a string.
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*/
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/*
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* Include necessary headers...
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*/
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#include <phbase.h>
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#include "config.h"
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/*
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* '_mxml_strdupf()' - Format and duplicate a string.
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*/
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char * /* O - New string pointer */
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_mxml_strdupf(const char *format, /* I - Printf-style format string */
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...) /* I - Additional arguments as needed */
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{
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va_list ap; /* Pointer to additional arguments */
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char *s; /* Pointer to formatted string */
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/*
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* Get a pointer to the additional arguments, format the string,
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* and return it...
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*/
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va_start(ap, format);
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s = _mxml_vstrdupf(format, ap);
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va_end(ap);
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return (s);
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}
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/*
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* '_mxml_vstrdupf()' - Format and duplicate a string.
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*/
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char * /* O - New string pointer */
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_mxml_vstrdupf(const char *format, /* I - Printf-style format string */
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va_list ap) /* I - Pointer to additional arguments */
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{
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int bytes; /* Number of bytes required */
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char *buffer, /* String buffer */
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temp[256]; /* Small buffer for first vsnprintf */
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/*
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* First format with a tiny buffer; this will tell us how many bytes are
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* needed...
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*/
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bytes = _vsnprintf(temp, sizeof(temp), format, ap);
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if (bytes < sizeof(temp))
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{
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/*
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* Hey, the formatted string fits in the tiny buffer, so just dup that...
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*/
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return (PhDuplicateBytesZSafe(temp));
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}
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/*
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* Allocate memory for the whole thing and reformat to the new, larger
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* buffer...
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*/
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if ((buffer = PhAllocateExSafe(bytes + 1, HEAP_ZERO_MEMORY)) != NULL)
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_vsnprintf(buffer, bytes + 1, format, ap);
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/*
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* Return the new string...
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*/
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return (buffer);
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}
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/*
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* End of "$Id: mxml-string.c 387 2009-04-18 17:05:52Z mike $".
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*/
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