libssh+;iPhone实现,多个命令按顺序执行
我的问题似乎很奇怪,我没有得到足够的帮助,但我回来了。 我还有一个奇怪的问题需要在紧急情况下解决 我正在开发一个iPhone应用程序。它使用libssh 2通过iPhone在远程主机上执行命令。如果我用单个命令执行所有的方法和命令,那么它们都可以正常工作 我的问题是, 考虑一系列命令, pwd =>o/p将为/Users/mac01 cd xyz =>不作为o/p pwd =>o/p将为/Users/mac01/xyz 所以,我的问题是保存已执行命令的最后状态。。。但我得到的o/p是 /Users/mac01 第二次pwd命令执行后,这是错误的 那么,有人能帮我解决这类问题吗。。?提前谢谢。 我正在使用libssh 2.0库 执行命令的方法: char*cmd_exec(const char*命令行、const char*主机、const char*用户名、const char*密码、int端口){ int sock,rc,字节数=0; char*cmd_内容libssh+;iPhone实现,多个命令按顺序执行,iphone,cocoa-touch,xcode,libssl,remote-client,Iphone,Cocoa Touch,Xcode,Libssl,Remote Client,我的问题似乎很奇怪,我没有得到足够的帮助,但我回来了。 我还有一个奇怪的问题需要在紧急情况下解决 我正在开发一个iPhone应用程序。它使用libssh 2通过iPhone在远程主机上执行命令。如果我用单个命令执行所有的方法和命令,那么它们都可以正常工作 我的问题是, 考虑一系列命令, pwd =>o/p将为/Users/mac01 cd xyz =>不作为o/p pwd =>o/p将为/Users/mac01/xyz 所以,我的问题是保存已执行命令的最后状态。。。但我得到的o/p是 /User
if(!he)
{
struct sockaddr_in sin;
ifdef WIN32
恩迪夫
ifndef WIN32
恩迪夫
}libssh2\u会话\u设置\u阻塞(会话,0) 字符缓冲区[0x4000]; rc=libssh2_channel_read(通道、缓冲区、sizeof(缓冲区)); 对于(i=0;i
}试试这个,也许有用。。。我还没有试过,但你可以得到足够的想法,也许是正确的解决办法
libssh2_session_set_blocking(session, 0);
char buffer[0x4000]; rc = libssh2_channel_read( channel, buffer, sizeof(buffer) );
for( i=0; i < rc; ++i )
fputc( buffer[i], stderr);
if(cmd_contents)
{
free(cmd_contents);
}
buffer[i] = '\0';
cmd_contents = (char*)malloc(sizeof(buffer) + sizeof(cmd_contents));
strcpy(cmd_contents, buffer);
if( rc == LIBSSH2_ERROR_EAGAIN )
{
waitsocket(sock, session);
}
libssh2\u session\u set\u阻塞(session,0);
字符缓冲区[0x4000];rc=libssh2_channel_read(通道、缓冲区、sizeof(缓冲区));
对于(i=0;i
快乐编码
/* Init and Make Socket Connection */
/* Start Socket Connection */
sock = socket(AF_INET, SOCK_STREAM, 0);
fcntl(sock, F_SETFL, 0);
sin.sin_family = AF_INET;
sin.sin_port = htons(port);
/*sin.sin_addr.s_addr = inet_addr(host);
if (connect(sock, (struct sockaddr*)(&sin),
sizeof(struct sockaddr_in)) != 0) { // in case connection failure
fprintf(stderr, "Internet connection is required!\n");
return "NETWORKFAILURE";
}*/
//const char *c = getIPFromHost("pepsi");
//sin.sin_addr.s_addr = inet_addr(c);
/* IP Address Calculation */
he = gethostbyname(host);
if(!he)
return "Invalid hostname";
struct in_addr **addr_list;
addr_list = (struct in_addr **)he->h_addr_list;
//for(int i = 0; addr_list[i] != NULL; i++) {
if(addr_list != NULL){
sin.sin_addr.s_addr = inet_addr(inet_ntoa(*addr_list[0]));
//printf("%s", inet_ntoa(*addr_list[0]));
if (connect(sock, (struct sockaddr*)(&sin),
sizeof(struct sockaddr_in)) != 0) { // in case connection failure
fprintf(stderr, "Internet connection is required!\n");
return "NETWORKFAILURE";
}
}
}
/* End Socket Connection */
// Initialize and create Session Instance
if(!session)
{
session = libssh2_session_init();
if ( !session )
{
fprintf( stderr, "Error initializing SSH session\n" );
return "SESSIONFAILURE";
}
/* Since we have set non-blocking, tell libssh2 we are non-blocking */
//libssh2_session_set_blocking(session, 0);
// Session starting
if (libssh2_session_startup(session, sock)) {
fprintf(stderr, "Failure establishing SSH session\n");
return "SESSIONFAILURE";
}
/* Authenticate via password */
if(strlen(password) != 0){
if ( libssh2_userauth_password( session, username, password ) )
{
fprintf( stderr, "Unable to authenticate user [%s]"
"(wrong password specified?)\n", username );
return "AUTHENTICATIONFAILURE";
}
}else{
while ((rc = libssh2_userauth_publickey_fromfile(session, username,
"/home/user/"
".ssh/id_rsa.pub",
"/home/user/"
".ssh/id_rsa",
password)) ==
LIBSSH2_ERROR_EAGAIN);
if (rc) {
fprintf(stderr, "\tAuthentication by public key failed\n");
return "AUTHENTICATIONFAILURE";
}
}
//libssh2_session_set_blocking(session, 1);
}
// Open a session channel for command execution
if(!channel)
{
channel = libssh2_channel_open_session(session);
if (!channel) {
fprintf(stderr, "Unable to open a session\n");
return "SESSIONFAILURE";
}
// Execute a command through channel
while( (rc = libssh2_channel_shell(channel)) ==
//while( (rc = libssh2_channel_exec(channel, commandline)) ==
LIBSSH2_ERROR_EAGAIN )
{
waitsocket(sock, session);
}
if( rc != 0 ) // if command execution failed
{
fprintf(stderr,"Error\n");
return "CMDFAILURE";
}
}
//libssh2_channel_write(channel,commandline,strlen(commandline));
do {
/* write the same data over and over, until error or completion */
rc = libssh2_channel_write(channel, commandline, sizeof(commandline));
if (rc < 0) {
fprintf(stderr, "ERROR %d\n", rc);
}
} while (rc == 0);
while (libssh2_channel_send_eof(channel) == LIBSSH2_ERROR_EAGAIN);
/* read channel output */
/* Start channel read */
for( ;; )
{
/* loop until we block */
int rc;
do
{
char buffer[0x4000];
// char *tcontents = (char*)malloc(sizeof(buffer) + sizeof(cmd_contents));
rc = libssh2_channel_read( channel, buffer, sizeof(buffer) );
if( rc > 0 )
{
int i;
bytecount += rc;
for( i=0; i < rc; ++i )
fputc( buffer[i], stderr);
if(cmd_contents){
free(cmd_contents);
}
cmd_contents = (char*)malloc(sizeof(buffer) + sizeof(cmd_contents));
strcpy(cmd_contents, buffer);
fprintf(stderr, "\n");
}
else {
//fprintf(stderr, "libssh2_channel_read returned %d\n", rc);
}
}
while( rc > 0 );
/* this is due to blocking that would occur otherwise so we loop on
this condition */
if( rc == LIBSSH2_ERROR_EAGAIN )
{
waitsocket(sock, session);
}
else
break;
}
/* End channel read */
while( (rc = libssh2_channel_close(channel)) == LIBSSH2_ERROR_EAGAIN );
/* closing channel */
int exitcode = 127;
/*
libssh2_session_disconnect( session, "" ); // closing session
libssh2_session_free( session ); // free up memory
close( sock ); // closing socket
*/
return cmd_contents;
if(cmd_contents){
free(cmd_contents);
}
buffer[i] = '\0';
cmd_contents = (char*)malloc(sizeof(buffer) + sizeof(cmd_contents));
strcpy(cmd_contents, buffer);
libssh2_session_set_blocking(session, 0);
char buffer[0x4000]; rc = libssh2_channel_read( channel, buffer, sizeof(buffer) );
for( i=0; i < rc; ++i )
fputc( buffer[i], stderr);
if(cmd_contents)
{
free(cmd_contents);
}
buffer[i] = '\0';
cmd_contents = (char*)malloc(sizeof(buffer) + sizeof(cmd_contents));
strcpy(cmd_contents, buffer);
if( rc == LIBSSH2_ERROR_EAGAIN )
{
waitsocket(sock, session);
}