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Extension checking fixes.

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When looking for an extension we need to set the last found
position to -1 to properly search all extensions.

PR#3309

(Imported from upstream's 5cd5e0219d2e9a8c1f2fec3d867f38179c3a86af)
This commit is contained in:
Adam Langley 2014-06-20 12:00:00 -07:00
parent 56475207be
commit 548523fd5e
1 changed files with 3 additions and 3 deletions
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6
crypto/x509v3/v3_purp.c
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@ -382,8 +382,8 @@ static void x509v3_cache_extensions(X509 *x)
/* Handle proxy certificates */
if((pci=X509_get_ext_d2i(x, NID_proxyCertInfo, NULL, NULL))) {
if (x->ex_flags & EXFLAG_CA
|| X509_get_ext_by_NID(x, NID_subject_alt_name, 0) >= 0
|| X509_get_ext_by_NID(x, NID_issuer_alt_name, 0) >= 0) {
|| X509_get_ext_by_NID(x, NID_subject_alt_name, -1) >= 0
|| X509_get_ext_by_NID(x, NID_issuer_alt_name, -1) >= 0) {
x->ex_flags |= EXFLAG_INVALID;
}
if (pci->pcPathLengthConstraint) {
@ -675,7 +675,7 @@ static int check_purpose_timestamp_sign(const X509_PURPOSE *xp, const X509 *x,
return 0;
/* Extended Key Usage MUST be critical */
i_ext = X509_get_ext_by_NID((X509 *) x, NID_ext_key_usage, 0);
i_ext = X509_get_ext_by_NID((X509 *) x, NID_ext_key_usage, -1);
if (i_ext >= 0)
{
X509_EXTENSION *ext = X509_get_ext((X509 *) x, i_ext);