curl/curl-7.20.0-read.patch

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From 5ec0b463ea3e788e20d381ae97302f5965b1d4c5 Mon Sep 17 00:00:00 2001
From: Kamil Dudka <kdudka@redhat.com>
Date: Thu, 18 Mar 2010 22:06:14 +0100
Subject: [PATCH 1/2] Curl_read: do not silently ingore an error
thrown from Curl_ssl_recv()
Signed-off-by: Kamil Dudka <kdudka@redhat.com>
---
lib/sendf.c | 6 ++++--
lib/sslgen.c | 10 +++++-----
2 files changed, 9 insertions(+), 7 deletions(-)
diff --git a/lib/sendf.c b/lib/sendf.c
index 359f43d..a366fd1 100644
--- a/lib/sendf.c
+++ b/lib/sendf.c
@@ -538,9 +538,11 @@ int Curl_read(struct connectdata *conn, /* connection data */
if(conn->ssl[num].state == ssl_connection_complete) {
nread = Curl_ssl_recv(conn, num, buffertofill, bytesfromsocket);
- if(nread == -1) {
+ if(nread == -1)
return -1; /* -1 from Curl_ssl_recv() means EWOULDBLOCK */
- }
+ else if(nread == -2)
+ /* -2 from Curl_ssl_recv() means a true error, not EWOULDBLOCK */
+ return CURLE_RECV_ERROR;
}
else if(Curl_ssh_enabled(conn, (PROT_SCP|PROT_SFTP))) {
if(conn->protocol & PROT_SCP)
diff --git a/lib/sslgen.c b/lib/sslgen.c
index 9167bf7..78ff8a3 100644
--- a/lib/sslgen.c
+++ b/lib/sslgen.c
@@ -399,7 +399,7 @@ struct curl_slist *Curl_ssl_engines_list(struct SessionHandle *data)
return curlssl_engines_list(data);
}
-/* return number of sent (non-SSL) bytes */
+/* return number of sent (non-SSL) bytes; -1 on error */
ssize_t Curl_ssl_send(struct connectdata *conn,
int sockindex,
const void *mem,
@@ -411,8 +411,8 @@ ssize_t Curl_ssl_send(struct connectdata *conn,
/* return number of received (decrypted) bytes */
/*
- * If the read would block (EWOULDBLOCK) we return -1. Otherwise we return
- * a regular CURLcode value.
+ * If the read would block (EWOULDBLOCK) we return -1. If an error occurs during
+ * the read, we return -2. Otherwise we return the count of bytes transfered.
*/
ssize_t Curl_ssl_recv(struct connectdata *conn, /* connection data */
int sockindex, /* socketindex */
@@ -425,9 +425,9 @@ ssize_t Curl_ssl_recv(struct connectdata *conn, /* connection data */
nread = curlssl_recv(conn, sockindex, mem, len, &block);
if(nread == -1) {
if(!block)
- return 0; /* this is a true error, not EWOULDBLOCK */
+ return -2; /* this is a true error, not EWOULDBLOCK */
else
- return -1;
+ return -1; /* EWOULDBLOCK */
}
return nread;
--
1.7.0.2