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https://git.libssh.org/projects/libssh.git
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examples: Reformat ssh_server.c
Signed-off-by: Jakub Jelen <jjelen@redhat.com> Reviewed-by: Sahana Prasad <sahana@redhat.com> Reviewed-by: Eshan Kelkar <eshankelkar@galorithm.com>
This commit is contained in:
Jakub Jelen
committed by
Sahana Prasad
Sahana Prasad
parent
a001e19882
commit
17a8a8b3c3
@ -135,7 +135,9 @@ static struct argp_option options[] = {
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};
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/* Parse a single option. */
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static error_t parse_opt (int key, char *arg, struct argp_state *state) {
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static error_t
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parse_opt(int key, char *arg, struct argp_state *state)
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{
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/* Get the input argument from argp_parse, which we
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* know is a pointer to our arguments structure. */
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ssh_bind sshbind = state->input;
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@ -163,8 +165,7 @@ static error_t parse_opt (int key, char *arg, struct argp_state *state) {
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strncpy(password, arg, sizeof(password) - 1);
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break;
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case 'v':
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ssh_bind_options_set(sshbind, SSH_BIND_OPTIONS_LOG_VERBOSITY_STR,
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"3");
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ssh_bind_options_set(sshbind, SSH_BIND_OPTIONS_LOG_VERBOSITY_STR, "3");
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break;
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case ARGP_KEY_ARG:
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if (state->arg_num >= 1) {
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@ -188,7 +189,9 @@ static error_t parse_opt (int key, char *arg, struct argp_state *state) {
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/* Our argp parser. */
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static struct argp argp = {options, parse_opt, args_doc, doc, NULL, NULL, NULL};
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#else
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static int parse_opt(int argc, char **argv, ssh_bind sshbind) {
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static int
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parse_opt(int argc, char **argv, ssh_bind sshbind)
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{
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int no_default_keys = 0;
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int rsa_already_set = 0;
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int ecdsa_already_set = 0;
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@ -289,8 +292,14 @@ struct session_data_struct {
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int authenticated;
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};
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static int data_function(ssh_session session, ssh_channel channel, void *data,
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uint32_t len, int is_stderr, void *userdata) {
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static int
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data_function(ssh_session session,
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ssh_channel channel,
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void *data,
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uint32_t len,
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int is_stderr,
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void *userdata)
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{
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struct channel_data_struct *cdata = (struct channel_data_struct *)userdata;
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(void)session;
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@ -304,10 +313,18 @@ static int data_function(ssh_session session, ssh_channel channel, void *data,
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return write(cdata->child_stdin, (char *)data, len);
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}
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static int pty_request(ssh_session session, ssh_channel channel,
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const char *term, int cols, int rows, int py, int px,
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void *userdata) {
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static int
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pty_request(ssh_session session,
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ssh_channel channel,
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const char *term,
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int cols,
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int rows,
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int py,
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int px,
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void *userdata)
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{
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struct channel_data_struct *cdata = (struct channel_data_struct *)userdata;
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int rc;
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(void)session;
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(void)channel;
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@ -318,16 +335,27 @@ static int pty_request(ssh_session session, ssh_channel channel,
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cdata->winsize->ws_xpixel = px;
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cdata->winsize->ws_ypixel = py;
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if (openpty(&cdata->pty_master, &cdata->pty_slave, NULL, NULL,
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cdata->winsize) != 0) {
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rc = openpty(&cdata->pty_master,
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&cdata->pty_slave,
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NULL,
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NULL,
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cdata->winsize);
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if (rc != 0) {
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fprintf(stderr, "Failed to open pty\n");
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return SSH_ERROR;
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}
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return SSH_OK;
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}
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static int pty_resize(ssh_session session, ssh_channel channel, int cols,
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int rows, int py, int px, void *userdata) {
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static int
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pty_resize(ssh_session session,
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ssh_channel channel,
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int cols,
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int rows,
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int py,
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int px,
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void *userdata)
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{
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struct channel_data_struct *cdata = (struct channel_data_struct *)userdata;
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(void)session;
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@ -345,9 +373,13 @@ static int pty_resize(ssh_session session, ssh_channel channel, int cols,
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return SSH_ERROR;
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}
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static int exec_pty(const char *mode, const char *command,
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struct channel_data_struct *cdata) {
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switch(cdata->pid = fork()) {
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static int
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exec_pty(const char *mode,
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const char *command,
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struct channel_data_struct *cdata)
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{
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cdata->pid = fork();
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switch (cdata->pid) {
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case -1:
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close(cdata->pty_master);
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close(cdata->pty_slave);
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@ -368,7 +400,9 @@ static int exec_pty(const char *mode, const char *command,
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return SSH_OK;
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}
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static int exec_nopty(const char *command, struct channel_data_struct *cdata) {
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static int
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exec_nopty(const char *command, struct channel_data_struct *cdata)
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{
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int in[2], out[2], err[2];
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/* Do the plumbing to be able to talk with the child process. */
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@ -382,7 +416,8 @@ static int exec_nopty(const char *command, struct channel_data_struct *cdata) {
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goto stderr_failed;
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}
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switch(cdata->pid = fork()) {
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cdata->pid = fork();
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switch (cdata->pid) {
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case -1:
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goto fork_failed;
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case 0:
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@ -424,11 +459,14 @@ stdin_failed:
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return SSH_ERROR;
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}
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static int exec_request(ssh_session session, ssh_channel channel,
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const char *command, void *userdata) {
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static int
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exec_request(ssh_session session,
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ssh_channel channel,
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const char *command,
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void *userdata)
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{
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struct channel_data_struct *cdata = (struct channel_data_struct *)userdata;
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(void)session;
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(void)channel;
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@ -442,8 +480,9 @@ static int exec_request(ssh_session session, ssh_channel channel,
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return exec_nopty(command, cdata);
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}
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static int shell_request(ssh_session session, ssh_channel channel,
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void *userdata) {
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static int
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shell_request(ssh_session session, ssh_channel channel, void *userdata)
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{
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struct channel_data_struct *cdata = (struct channel_data_struct *)userdata;
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(void)session;
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@ -460,8 +499,12 @@ static int shell_request(ssh_session session, ssh_channel channel,
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return SSH_OK;
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}
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static int subsystem_request(ssh_session session, ssh_channel channel,
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const char *subsystem, void *userdata) {
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static int
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subsystem_request(ssh_session session,
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ssh_channel channel,
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const char *subsystem,
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void *userdata)
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{
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/* subsystem requests behave similarly to exec requests. */
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if (strcmp(subsystem, "sftp") == 0) {
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return exec_request(session, channel, SFTP_SERVER_PATH, userdata);
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@ -469,8 +512,12 @@ static int subsystem_request(ssh_session session, ssh_channel channel,
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return SSH_ERROR;
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}
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static int auth_password(ssh_session session, const char *user,
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const char *pass, void *userdata) {
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static int
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auth_password(ssh_session session,
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const char *user,
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const char *pass,
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void *userdata)
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{
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struct session_data_struct *sdata = (struct session_data_struct *)userdata;
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(void)session;
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@ -484,7 +531,8 @@ static int auth_password(ssh_session session, const char *user,
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return SSH_AUTH_DENIED;
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}
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static int auth_publickey(ssh_session session,
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static int
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auth_publickey(ssh_session session,
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const char *user,
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struct ssh_key_struct *pubkey,
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char signature_state,
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@ -598,14 +646,18 @@ static int auth_publickey(ssh_session session,
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return SSH_AUTH_DENIED;
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}
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static ssh_channel channel_open(ssh_session session, void *userdata) {
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static ssh_channel
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channel_open(ssh_session session, void *userdata)
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{
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struct session_data_struct *sdata = (struct session_data_struct *)userdata;
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sdata->channel = ssh_channel_new(session);
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return sdata->channel;
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}
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static int process_stdout(socket_t fd, int revents, void *userdata) {
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static int
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process_stdout(socket_t fd, int revents, void *userdata)
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{
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char buf[BUF_SIZE];
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int n = -1;
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ssh_channel channel = (ssh_channel)userdata;
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@ -620,7 +672,9 @@ static int process_stdout(socket_t fd, int revents, void *userdata) {
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return n;
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}
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static int process_stderr(socket_t fd, int revents, void *userdata) {
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static int
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process_stderr(socket_t fd, int revents, void *userdata)
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{
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char buf[BUF_SIZE];
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int n = -1;
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ssh_channel channel = (ssh_channel)userdata;
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@ -635,7 +689,9 @@ static int process_stderr(socket_t fd, int revents, void *userdata) {
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return n;
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}
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static void handle_session(ssh_event event, ssh_session session) {
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static void
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handle_session(ssh_event event, ssh_session session)
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{
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int n;
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int rc = 0;
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@ -782,12 +838,14 @@ static void handle_session(ssh_event event, ssh_session session) {
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#ifdef WITH_FORK
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/* SIGCHLD handler for cleaning up dead children. */
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static void sigchld_handler(int signo) {
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static void sigchld_handler(int signo)
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{
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(void)signo;
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while (waitpid(-1, NULL, WNOHANG) > 0);
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}
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#else
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static void *session_thread(void *arg) {
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static void *session_thread(void *arg)
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{
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ssh_session session = arg;
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ssh_event event;
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@ -806,9 +864,10 @@ static void *session_thread(void *arg) {
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}
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#endif
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int main(int argc, char **argv) {
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ssh_bind sshbind;
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ssh_session session;
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int main(int argc, char **argv)
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{
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ssh_bind sshbind = NULL;
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ssh_session session = NULL;
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int rc;
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#ifdef WITH_FORK
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struct sigaction sa;
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@ -846,7 +905,8 @@ int main(int argc, char **argv) {
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}
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#endif /* HAVE_ARGP_H */
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if(ssh_bind_listen(sshbind) < 0) {
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rc = ssh_bind_listen(sshbind);
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if (rc < 0) {
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fprintf(stderr, "%s\n", ssh_get_error(sshbind));
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ssh_bind_free(sshbind);
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ssh_finalize();
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@ -861,11 +921,13 @@ int main(int argc, char **argv) {
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}
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/* Blocks until there is a new incoming connection. */
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if(ssh_bind_accept(sshbind, session) != SSH_ERROR) {
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rc = ssh_bind_accept(sshbind, session);
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if (rc != SSH_ERROR) {
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#ifdef WITH_FORK
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ssh_event event;
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switch(fork()) {
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pid_t pid = fork();
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switch (pid) {
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case 0:
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/* Remove the SIGCHLD handler inherited from parent. */
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sa.sa_handler = SIG_DFL;
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