Limit DbpString size to the buffer size, patch by Andreas from proxmark forums

[proxmark3-svn] / armsrc / appmain.c

diff --git a/armsrc/appmain.c b/armsrc/appmain.c
index 4321d9469afabb0f0bf52e755aeee8b7e8083ad3..ecf22adfed41b5e0990dc78452a123966675cfa1 100644 (file)
--- a/armsrc/appmain.c
+++ b/armsrc/appmain.c
@@ -76,6 +76,9 @@ void DbpString(char *str)
        UsbCommand c;\r
        c.cmd = CMD_DEBUG_PRINT_STRING;\r
        c.arg[0] = strlen(str);\r
+       if(c.arg[0] > sizeof(c.d.asBytes)) {\r
+               c.arg[0] = sizeof(c.d.asBytes);\r
+       }\r
        memcpy(c.d.asBytes, str, c.arg[0]);\r
 \r
        UsbSendPacket((BYTE *)&c, sizeof(c));\r