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send/recv: use _libssh2_recv and _libssh2_send now

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Starting now, we unconditionally use the internal replacement functions
for send() and recv() - creatively named _libssh2_recv() and
_libssh2_send().

On errors, these functions return the negative 'errno' value instead of
the traditional -1. This design allows systems that have no "natural"
errno support to not have to invent it. It also means that no code
outside of these two transfer functions should use the errno variable.
This commit is contained in:
Daniel Stenberg
2010-11-12 21:53:35 +01:00
parent aff9c825c8
commit ca2e81eb1f
6 changed files with 58 additions and 68 deletions
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11
src/libssh2_priv.h
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@@ -998,13 +998,10 @@ _libssh2_debug(LIBSSH2_SESSION * session, int context, const char *format, ...)
#define SSH_OPEN_UNKNOWN_CHANNELTYPE 3
#define SSH_OPEN_RESOURCE_SHORTAGE 4
#if defined( WIN32 ) || defined( __VMS )
ssize_t _libssh2_recv(libssh2_socket_t socket, void *buffer, size_t length, int flags);
ssize_t _libssh2_send(libssh2_socket_t socket, const void *buffer, size_t length, int flags);
#else
#define _libssh2_recv(a,b,c,d) recv(a,b,c,d)
#define _libssh2_send(a,b,c,d) send(a,b,c,d)
#endif
ssize_t _libssh2_recv(libssh2_socket_t socket, void *buffer,
size_t length, int flags);
ssize_t _libssh2_send(libssh2_socket_t socket, const void *buffer,
size_t length, int flags);
#define LIBSSH2_READ_TIMEOUT 60 /* generic timeout in seconds used when
waiting for more data to arrive */