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REVIEWED: TraceLog(), avoid possible buffer overflow

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This commit is contained in:
Ray 2023-03-15 13:03:55 +01:00
parent cf04425bc2
commit ad2067340f
1 changed files with 3 additions and 2 deletions
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5
src/utils.c
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@ -54,7 +54,7 @@
// Defines and Macros // Defines and Macros
//---------------------------------------------------------------------------------- //----------------------------------------------------------------------------------
#ifndef MAX_TRACELOG_MSG_LENGTH #ifndef MAX_TRACELOG_MSG_LENGTH
#define MAX_TRACELOG_MSG_LENGTH 128 // Max length of one trace-log message #define MAX_TRACELOG_MSG_LENGTH 256 // Max length of one trace-log message
#endif #endif
//---------------------------------------------------------------------------------- //----------------------------------------------------------------------------------
@ -145,7 +145,8 @@ void TraceLog(int logType, const char *text, ...)
default: break; default: break;
} }
strcat(buffer, text); unsigned int textSize = strlen(text);
memcpy(buffer + strlen(buffer), text, (textSize < (MAX_TRACELOG_MSG_LENGTH - 12))? textSize : (MAX_TRACELOG_MSG_LENGTH - 12));
strcat(buffer, "\n"); strcat(buffer, "\n");
vprintf(buffer, args); vprintf(buffer, args);
fflush(stdout); fflush(stdout);