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_libssh2_error: Support allocating the error message

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Before this patch "_libssh2_error" required the error message to be a
static string.

This patch adds a new function "_libssh2_error_flags" accepting an
additional "flags" argument and specifically the flag
"LIBSSH2_ERR_FLAG_DUP" indicating that the passed string must be
duplicated into the heap.

Then, the method "_libssh2_error" has been rewritten to use that new
function under the hood.

Signed-off-by: Salvador Fandino <sfandino@yahoo.com>
Signed-off-by: Salvador Fandiño <sfandino@yahoo.com>
This commit is contained in:
Salvador Fandino
2015-10-21 15:03:02 +02:00
committed by Daniel Stenberg
parent d441da3086
commit ad23faaae6
4 changed files with 37 additions and 2 deletions
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5
src/libssh2_priv.h
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@@ -631,6 +631,7 @@ struct _LIBSSH2_SESSION
/* Error tracking */
const char *err_msg;
int err_code;
int err_flags;
/* struct members for packet-level reading */
struct transportpacket packet;
@@ -950,6 +951,10 @@ _libssh2_debug(LIBSSH2_SESSION * session, int context, const char *format, ...)
/* Something very bad is going on */
#define LIBSSH2_MAC_INVALID -1
/* Flags for _libssh2_error_flags */
/* Error message is allocated on the heap */
#define LIBSSH2_ERR_FLAG_DUP 1
/* SSH Packet Types -- Defined by internet draft */
/* Transport Layer */
#define SSH_MSG_DISCONNECT 1