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/* simple exec example */
#include <stdio.h>
#include <libssh/libssh.h>
#include "examples_common.h"
int main(void) {
ssh_session session = NULL;
ssh_channel channel = NULL;
char buffer[256];
int rbytes, wbytes, total = 0;
int rc;
session = connect_ssh("localhost", NULL, 0);
if (session == NULL) {
ssh_finalize();
return 1;
}
channel = ssh_channel_new(session);
if (channel == NULL) {
ssh_disconnect(session);
ssh_free(session);
ssh_finalize();
return 1;
}
rc = ssh_channel_open_session(channel);
if (rc < 0) {
goto failed;
}
rc = ssh_channel_request_exec(channel, "lsof");
if (rc < 0) {
goto failed;
}
rbytes = ssh_channel_read(channel, buffer, sizeof(buffer), 0);
if (rbytes <= 0) {
goto failed;
}
do {
wbytes = fwrite(buffer + total, 1, rbytes, stdout);
if (wbytes <= 0) {
goto failed;
}
total += wbytes;
/* When it was not possible to write the whole buffer to stdout */
if (wbytes < rbytes) {
rbytes -= wbytes;
continue;
}
rbytes = ssh_channel_read(channel, buffer, sizeof(buffer), 0);
total = 0;
} while (rbytes > 0);
if (rbytes < 0) {
goto failed;
}
ssh_channel_send_eof(channel);
ssh_channel_close(channel);
ssh_channel_free(channel);
ssh_disconnect(session);
ssh_free(session);
ssh_finalize();
return 0;
failed:
ssh_channel_close(channel);
ssh_channel_free(channel);
ssh_disconnect(session);
ssh_free(session);
ssh_finalize();
return 1;
}
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