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Fix sloppy wording around stricly less-than vs less or equal

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Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
This commit is contained in:
Gilles Peskine 2021-03-01 11:39:21 +01:00
parent 58ec378912
commit 121d7c7c14
2 changed files with 8 additions and 8 deletions
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4
include/mbedtls/net_sockets.h
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@ -184,7 +184,7 @@ int mbedtls_net_accept( mbedtls_net_context *bind_ctx,
*
* \note The current implementation of this function uses
* select() and returns an error if the file descriptor
* is beyond \c FD_SETSIZE.
* is \c FD_SETSIZE or greater.
*
* \param ctx Socket to check
* \param rw Bitflag composed of MBEDTLS_NET_POLL_READ and
@ -269,7 +269,7 @@ int mbedtls_net_send( void *ctx, const unsigned char *buf, size_t len );
*
* \note The current implementation of this function uses
* select() and returns an error if the file descriptor
* is beyond \c FD_SETSIZE.
* is \c FD_SETSIZE or greater.
*
* \param ctx Socket
* \param buf The buffer to write to

12
library/net_sockets.c
View file

@ -497,9 +497,9 @@ int mbedtls_net_poll( mbedtls_net_context *ctx, uint32_t rw, uint32_t timeout )
return( MBEDTLS_ERR_NET_INVALID_CONTEXT );
/* A limitation of select() is that it only works with file descriptors
* up to FD_SETSIZE. This is a limitation of the fd_set type. Error out
* early, because attempting to call FD_SET on a large file descriptor
* is a buffer overflow on typical platforms. */
* that are strictly less than FD_SETSIZE. This is a limitation of the
* fd_set type. Error out early, because attempting to call FD_SET on a
* large file descriptor is a buffer overflow on typical platforms. */
if( fd >= FD_SETSIZE )
return( MBEDTLS_ERR_NET_POLL_FAILED );
@ -623,9 +623,9 @@ int mbedtls_net_recv_timeout( void *ctx, unsigned char *buf,
return( MBEDTLS_ERR_NET_INVALID_CONTEXT );
/* A limitation of select() is that it only works with file descriptors
* up to FD_SETSIZE. This is a limitation of the fd_set type. Error out
* early, because attempting to call FD_SET on a large file descriptor
* is a buffer overflow on typical platforms. */
* that are strictly less than FD_SETSIZE. This is a limitation of the
* fd_set type. Error out early, because attempting to call FD_SET on a
* large file descriptor is a buffer overflow on typical platforms. */
if( fd >= FD_SETSIZE )
return( MBEDTLS_ERR_NET_POLL_FAILED );