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Strip trailing zeroes from cert buffer when using IOTSAFE_NO_GETDATA.

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Kareem
2022-03-21 10:50:06 -07:00
parent e6189a638c
commit af70edb99d
1 changed files with 12 additions and 0 deletions
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12
wolfcrypt/src/port/iotsafe/iotsafe.c
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@@ -495,6 +495,17 @@ static int iotsafe_readfile(uint8_t *file_id, uint16_t file_id_sz,
off += ret/2;
#ifdef IOTSAFE_NO_GETDATA
if (XSTRNCMP(&resp[ret-4], "0000", 4) == 0) {
/* Strip trailing zeros */
for (int idx = 0; idx < off-1; idx+=2) {
if (content[idx] == 0 && content[idx+1] == 0) {
off = idx;
#ifdef DEBUG_IOTSAFE
WOLFSSL_MSG("Stripped trailing zeros from cert buffer.");
WOLFSSL_BUFFER(content, off);
#endif
break;
}
}
break;
}
#endif
@@ -503,6 +514,7 @@ static int iotsafe_readfile(uint8_t *file_id, uint16_t file_id_sz,
return -1;
}
}
return off;
}