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Fix #157: Allow to set terminal modes for PTYs

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Added the new function `ssh_channel_request_pty_size_modes` which allows
to pass additional encoded SSH terminal modes (see opcodes in RFC 4245).

Signed-off-by: Daniel Evers (daniel.evers@utimaco.com)
Reviewed-by: Jakub Jelen <jjelen@redhat.com>
This commit is contained in:
Daniel Evers
2023-10-11 19:01:06 +02:00
committed by Jakub Jelen
parent 6ad455a8ac
commit 1291ceb17d
6 changed files with 171 additions and 7 deletions
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22
src/channels.c
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@@ -1927,13 +1927,17 @@ error:
*
* @param[in] row The number of rows.
*
* @param[in] modes Encoded SSH terminal modes for the PTY
*
* @param[in] modes_len Number of bytes in 'modes'
*
* @return SSH_OK on success,
* SSH_ERROR if an error occurred,
* SSH_AGAIN if in nonblocking mode and call has
* to be done again.
*/
int ssh_channel_request_pty_size(ssh_channel channel, const char *terminal,
int col, int row)
int ssh_channel_request_pty_size_modes(ssh_channel channel, const char *terminal,
int col, int row, const unsigned char* modes, size_t modes_len)
{
ssh_session session;
ssh_buffer buffer = NULL;
@@ -1963,14 +1967,14 @@ int ssh_channel_request_pty_size(ssh_channel channel, const char *terminal,
}
rc = ssh_buffer_pack(buffer,
"sdddddb",
"sdddddP",
terminal,
col,
row,
0, /* pix */
0, /* pix */
1, /* add a 0byte string */
0);
(uint32_t)modes_len,
modes_len, modes);
if (rc != SSH_OK) {
ssh_set_error_oom(session);
@@ -1984,6 +1988,14 @@ error:
return rc;
}
int ssh_channel_request_pty_size(ssh_channel channel, const char *terminal,
int col, int row)
{
/* default modes/options: none */
const unsigned char modes[1] = {0};
return ssh_channel_request_pty_size_modes(channel, terminal, col, row, modes, sizeof(modes));
}
/**
* @brief Request a PTY.
*