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libssh/examples/exec.c
2011-04-15 19:05:53 +02:00

67 строки
1.4 KiB
C

/* simple exec example */
#include <stdio.h>
#include <libssh/libssh.h>
#include "examples_common.h"
int main(void) {
ssh_session session;
ssh_channel channel;
char buffer[256];
int nbytes;
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;
}
nbytes = ssh_channel_read(channel, buffer, sizeof(buffer), 0);
while (nbytes > 0) {
if (fwrite(buffer, 1, nbytes, stdout) != (unsigned int) nbytes) {
goto failed;
}
nbytes = ssh_channel_read(channel, buffer, sizeof(buffer), 0);
}
if (nbytes < 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;
}