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- /* Copyright (C) 2002-2005 RealVNC Ltd. All Rights Reserved.
- *
- * This is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This software is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this software; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
- * USA.
- */
-
- //
- // util.h - miscellaneous useful bits
- //
-
- #ifndef __RFB_UTIL_H__
- #define __RFB_UTIL_H__
-
- #include <limits.h>
- #include <string.h>
-
- namespace rfb {
-
- // -=- Class to handle cleanup of arrays of characters
- class CharArray {
- public:
- CharArray() : buf(0) {}
- CharArray(char* str) : buf(str) {} // note: assumes ownership
- CharArray(int len) {
- buf = new char[len];
- }
- ~CharArray() {
- delete [] buf;
- }
- // Get the buffer pointer & clear it (i.e. caller takes ownership)
- char* takeBuf() {char* tmp = buf; buf = 0; return tmp;}
- void replaceBuf(char* b) {delete [] buf; buf = b;}
- char* buf;
- private:
- CharArray(const CharArray&);
- CharArray& operator=(const CharArray&);
- };
-
- char* strDup(const char* s);
- void strFree(char* s);
-
- // Returns true if split successful. Returns false otherwise.
- // ALWAYS *copies* first part of string to out1 buffer.
- // If limiter not found, leaves out2 alone (null) and just copies to out1.
- // If out1 or out2 non-zero, calls strFree and zeroes them.
- // If fromEnd is true, splits at end of string rather than beginning.
- // Either out1 or out2 may be null, in which case the split will not return
- // that part of the string. Obviously, setting both to 0 is not useful...
- bool strSplit(const char* src, const char limiter, char** out1, char** out2, bool fromEnd=false);
-
- // Returns true if src contains c
- bool strContains(const char* src, char c);
-
- // Copies src to dest, up to specified length-1, and guarantees termination
- void strCopy(char* dest, const char* src, int destlen);
-
-
- // HELPER functions for timeout handling
-
- // soonestTimeout() is a function to help work out the soonest of several
- // timeouts.
- inline void soonestTimeout(int* timeout, int newTimeout) {
- if (newTimeout && (!*timeout || newTimeout < *timeout))
- *timeout = newTimeout;
- }
-
- // secsToMillis() turns seconds into milliseconds, capping the value so it
- // can't wrap round and become -ve
- inline int secsToMillis(int secs) {
- return (secs < 0 || secs > (INT_MAX/1000) ? INT_MAX : secs * 1000);
- }
- }
-
- // Some platforms (e.g. Windows) include max() and min() macros in their
- // standard headers, but they are also standard C++ template functions, so some
- // C++ headers will undefine them. So we steer clear of the names min and max
- // and define __rfbmin and __rfbmax instead.
-
- #ifndef __rfbmax
- #define __rfbmax(a,b) (((a) > (b)) ? (a) : (b))
- #endif
- #ifndef __rfbmin
- #define __rfbmin(a,b) (((a) < (b)) ? (a) : (b))
- #endif
-
- // Declare strcasecmp() and/or strncasecmp() if absent on this system.
-
- #if !defined(WIN32) && !defined(HAVE_STRCASECMP)
- extern "C" {
- int strcasecmp(const char *s1, const char *s2);
- }
- #endif
- #if !defined(WIN32) && !defined(HAVE_STRNCASECMP)
- extern "C" {
- int strncasecmp(const char *s1, const char *s2, size_t n);
- }
- #endif
-
- #endif
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