fix gcc8 compiler warnings on string overflows (#905)

[proxmark3-svn] / client / cmdhf14b.c

diff --git a/client/cmdhf14b.c b/client/cmdhf14b.c
index 577b4fc8d975d9b0a50cf9681e706ea1ef6580c6..0c6ff4b37c826b47a17f0fc9d416794ce71d3490 100644 (file)
--- a/client/cmdhf14b.c
+++ b/client/cmdhf14b.c
@@ -679,7 +679,6 @@ int CmdSriWrite(const char *Cmd) {
        uint8_t blockno = -1;
        uint8_t data[4] = {0x00};
        bool isSrix4k = true;
-       char str[20];
 
        if (strlen(Cmd) < 1 || cmdp == 'h' || cmdp == 'H') {
                PrintAndLog("Usage:  hf 14b write <1|2> <BLOCK> <DATA>");
@@ -725,6 +724,7 @@ int CmdSriWrite(const char *Cmd) {
        else
                PrintAndLog("[%s] Write block %02X [ %s ]", (isSrix4k)?"SRIX4K":"SRI512", blockno, sprint_hex(data, 4));
 
+       char str[22];
        sprintf(str, "-ss -c 09 %02x %02x%02x%02x%02x", blockno, data[0], data[1], data[2], data[3]);
 
        CmdHF14BCmdRaw(str);