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openssl: fix serial number output 

The code extracting the cert serial number was broken and didn't display
it properly.

Bug: https://github.com/bagder/curl/issues/235
Reported-by: dkjjr89
This commit is contained in:
Daniel Stenberg 2015-04-26 16:36:19 +02:00
parent 59f3f92ba6
commit aff153f83a
1 changed files with 8 additions and 14 deletions
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22
lib/vtls/openssl.c
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@ -2472,25 +2472,19 @@ static CURLcode get_cert_chain(struct connectdata *conn,
Curl_ssl_push_certinfo(data, i, "Version", bufp); /* hex */
num=X509_get_serialNumber(x);
if(num->length <= 4) {
value = ASN1_INTEGER_get(num);
infof(data, " Serial Number: %ld (0x%lx)\n", value, value);
snprintf(bufp, CERTBUFFERSIZE, "%lx", value);
}
else {
{
int left = CERTBUFFERSIZE;
ptr = bufp;
*ptr++ = 0;
if(num->type == V_ASN1_NEG_INTEGER)
if(num->type == V_ASN1_NEG_INTEGER) {
*ptr++='-';
left--;
}
for(j=0; (j<num->length) && (left>=4); j++) {
/* TODO: length restrictions */
snprintf(ptr, 3, "%02x%c",num->data[j],
((j+1 == num->length)?'\n':':'));
ptr += 3;
left-=4;
for(j=0; (j<num->length) && (left>=3); j++) {
snprintf(ptr, left, "%02x", num->data[j]);
ptr += 2;
left -= 2;
}
if(num->length)
infof(data, " Serial Number: %s\n", bufp);