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Fix wolfssl_asn1_time_to_tm setting unexpected fields in tm struct.

pull/6403/head
Kareem 2023-05-11 15:15:46 -07:00
parent dbb5ee3b1e
commit 6930179b8e
1 changed files with 10 additions and 2 deletions
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12
src/ssl_asn1.c
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@ -3652,6 +3652,9 @@ static int wolfssl_asn1_time_to_tm(const WOLFSSL_ASN1_TIME* asnTime,
const unsigned char* asn1TimeBuf;
int asn1TimeBufLen;
int i = 0;
#ifdef XMKTIME
struct tm localTm = {0};
#endif
/* Get the string buffer - fixed array, can't fail. */
asn1TimeBuf = wolfSSL_ASN1_TIME_get_data(asnTime);
@ -3706,8 +3709,13 @@ static int wolfssl_asn1_time_to_tm(const WOLFSSL_ASN1_TIME* asnTime,
tm->tm_sec += (asn1TimeBuf[i] - '0');
#ifdef XMKTIME
/* Call XMKTIME on tm to get tm_wday and tm_yday fields populated. */
XMKTIME(tm);
XMEMCPY(&localTm, tm, sizeof(struct tm));
/* Call XMKTIME on tm to get tm_wday and tm_yday fields populated.
Note that localTm is used here to avoid modifying other fields,
such as tm_isdst/tm_gmtoff. */
XMKTIME(&localTm);
tm->tm_wday = localTm.tm_wday;
tm->tm_yday = localTm.tm_yday;
#endif
}