diff options
Diffstat (limited to 'cli-runopts.c')
| -rw-r--r-- | cli-runopts.c | 56 |
1 files changed, 24 insertions, 32 deletions
diff --git a/cli-runopts.c b/cli-runopts.c index 8a6dc07..e42ef57 100644 --- a/cli-runopts.c +++ b/cli-runopts.c @@ -33,7 +33,8 @@ cli_runopts cli_opts; /* GLOBAL */ static void printhelp(); -static void parsehostname(const char* orighostarg, const char* argv0); +static void parse_hostname(const char* orighostarg); +static void parse_multihop_hostname(const char* orighostarg, const char* argv0); static void fill_own_user(); #ifdef ENABLE_CLI_PUBKEY_AUTH static void loadidentityfile(const char* filename); @@ -48,7 +49,7 @@ static void add_netcat(const char *str); static void printhelp() { fprintf(stderr, "Dropbear client v%s\n" - "Usage: %s [options] [user@]host [command]\n" + "Usage: %s [options] [user@]host[/port] [command]\n" "Options are:\n" "-p <remoteport>\n" "-l <username>\n" @@ -290,9 +291,11 @@ void cli_getopts(int argc, char ** argv) { /* Either the hostname or commands */ if (cli_opts.remotehost == NULL) { - - parsehostname(argv[i], argv[0]); - +#ifdef ENABLE_CLI_MULTIHOP + parse_multihop_hostname(argv[i], argv[0]); +#else + parse_hostname(argv[i]); +#endif } else { /* this is part of the commands to send - after this we @@ -393,7 +396,8 @@ static void loadidentityfile(const char* filename) { #ifdef ENABLE_CLI_MULTIHOP -/* Sets up 'onion-forwarding' connections. +/* Sets up 'onion-forwarding' connections. This will spawn + * a separate dbclient process for each hop. * As an example, if the cmdline is * dbclient wrt,madako,canyons * then we want to run: @@ -401,8 +405,10 @@ static void loadidentityfile(const char* filename) { * and then the inner dbclient will recursively run: * dbclient -J "dbclient -B madako:22 wrt" madako * etc for as many hosts as we want. + * + * Ports for hosts can be specified as host/port. */ -static void parsehostname(const char* orighostarg, const char* argv0) { +static void parse_multihop_hostname(const char* orighostarg, const char* argv0) { char *userhostarg = NULL; char *last_hop = NULL;; char *remainder = NULL; @@ -420,24 +426,7 @@ static void parsehostname(const char* orighostarg, const char* argv0) { userhostarg = last_hop; } - cli_opts.remotehost = strchr(userhostarg, '@'); - if (cli_opts.remotehost == NULL) { - /* no username portion, the cli-auth.c code can figure the - * local user's name */ - cli_opts.remotehost = userhostarg; - } else { - cli_opts.remotehost[0] = '\0'; /* Split the user/host */ - cli_opts.remotehost++; - cli_opts.username = userhostarg; - } - - if (cli_opts.username == NULL) { - cli_opts.username = m_strdup(cli_opts.own_user); - } - - if (cli_opts.remotehost[0] == '\0') { - dropbear_exit("Bad hostname"); - } + parse_hostname(userhostarg); if (last_hop) { /* Set up the proxycmd */ @@ -454,15 +443,14 @@ static void parsehostname(const char* orighostarg, const char* argv0) { cli_opts.proxycmd = m_malloc(cmd_len); snprintf(cli_opts.proxycmd, cmd_len, "%s -B %s:%s %s", argv0, cli_opts.remotehost, cli_opts.remoteport, remainder); - dropbear_log(LOG_INFO, "proxycmd: '%s'", cli_opts.proxycmd); } } +#endif /* !ENABLE_CLI_MULTIHOP */ -#else /* !ENABLE_CLI_MULTIHOP */ - -/* Parses a [user@]hostname argument. orighostarg is the argv[i] corresponding */ -static void parsehostname(const char* orighostarg, const char* argv0) { +/* Parses a [user@]hostname[/port] argument. */ +static void parse_hostname(const char* orighostarg) { char *userhostarg = NULL; + char *port = NULL; userhostarg = m_strdup(orighostarg); @@ -481,13 +469,17 @@ static void parsehostname(const char* orighostarg, const char* argv0) { cli_opts.username = m_strdup(cli_opts.own_user); } + port = strchr(cli_opts.remotehost, '/'); + if (port) { + *port = '\0'; + cli_opts.remoteport = port+1; + } + if (cli_opts.remotehost[0] == '\0') { dropbear_exit("Bad hostname"); } } -#endif /* !ENABLE_CLI_MULTIHOP */ - #ifdef ENABLE_CLI_NETCAT static void add_netcat(const char* origstr) { char *portstr = NULL; |