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openssl: use strerror on SSL_ERROR_SYSCALL

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Instead of showing the somewhat nonsensical errno number, use strerror()
to provide a more relatable error message.

Closes #4411
This commit is contained in:
Daniel Stenberg 2019-09-24 14:03:23 +02:00
parent 2078e7701b
commit 0ab38f5fd6
No known key found for this signature in database
GPG Key ID: 5CC908FDB71E12C2
1 changed files with 8 additions and 2 deletions
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10
lib/vtls/openssl.c
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@ -44,6 +44,7 @@
#include "strcase.h"
#include "hostcheck.h"
#include "multiif.h"
#include "strerror.h"
#include "curl_printf.h"
#include <openssl/ssl.h>
#include <openssl/rand.h>
@ -3825,8 +3826,8 @@ static ssize_t ossl_send(struct connectdata *conn,
*curlcode = CURLE_AGAIN;
return -1;
case SSL_ERROR_SYSCALL:
failf(conn->data, "SSL_write() returned SYSCALL, errno = %d",
SOCKERRNO);
Curl_strerror(SOCKERRNO, error_buffer, sizeof(error_buffer));
failf(conn->data, OSSL_PACKAGE " SSL_write: %s", error_buffer);
*curlcode = CURLE_SEND_ERROR;
return -1;
case SSL_ERROR_SSL:
@ -3893,6 +3894,11 @@ static ssize_t ossl_recv(struct connectdata *conn, /* connection data */
/* there's data pending, re-invoke SSL_read() */
*curlcode = CURLE_AGAIN;
return -1;
case SSL_ERROR_SYSCALL:
Curl_strerror(SOCKERRNO, error_buffer, sizeof(error_buffer));
failf(conn->data, OSSL_PACKAGE " SSL_read: %s", error_buffer);
*curlcode = CURLE_RECV_ERROR;
return -1;
default:
/* openssl/ssl.h for SSL_ERROR_SYSCALL says "look at error stack/return
value/errno" */