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transport.c: Add some comments

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This commit is contained in:
Dan Fandrich
2023-01-06 13:48:37 -08:00
parent 16619a8edd
commit 1e1a74eb7e
1 changed files with 16 additions and 9 deletions
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src/transport.c
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@@ -122,7 +122,8 @@ debugdump(LIBSSH2_SESSION * session,
#endif
/* decrypt() decrypts 'len' bytes from 'source' to 'dest'.
/* decrypt() decrypts 'len' bytes from 'source' to 'dest' in units of
* blocksize.
*
* returns 0 on success and negative on failure
*/
@@ -274,13 +275,17 @@ int _libssh2_transport_read(LIBSSH2_SESSION * session)
{
int rc;
struct transportpacket *p = &session->packet;
int remainbuf;
int remainpack;
int numbytes;
int numdecrypt;
unsigned char block[MAX_BLOCKSIZE];
int blocksize;
int encrypted = 1;
int remainpack; /* how much there is left to add to the current payload
package */
int remainbuf; /* how much data there is remaining in the buffer to deal
with before we should read more from the network */
int numbytes; /* how much data to deal with from the buffer on this
iteration through the loop */
int numdecrypt; /* number of bytes to decrypt this iteration */
unsigned char block[MAX_BLOCKSIZE]; /* working block buffer */
int blocksize; /* minimum number of bytes we need before we can
use them */
int encrypted = 1; /* whether the packet is encrypted or not */
/* default clear the bit */
session->socket_block_directions &= ~LIBSSH2_SESSION_BLOCK_INBOUND;
@@ -400,7 +405,9 @@ int _libssh2_transport_read(LIBSSH2_SESSION * session)
numbytes = remainbuf;
if(!p->total_num) {
size_t total_num;
size_t total_num; /* the number of bytes following the initial
(5 bytes) packet length and padding length
fields */
/* No payload package area allocated yet. To know the
size of this payload, we need to decrypt the first