diff options
Diffstat (limited to 'tools/plink/cmdline.c')
| -rw-r--r-- | tools/plink/cmdline.c | 1140 |
1 files changed, 570 insertions, 570 deletions
diff --git a/tools/plink/cmdline.c b/tools/plink/cmdline.c index 1a5e2cbb6..0c7ef4c91 100644 --- a/tools/plink/cmdline.c +++ b/tools/plink/cmdline.c @@ -1,570 +1,570 @@ -/*
- * cmdline.c - command-line parsing shared between many of the
- * PuTTY applications
- */
-
-#include <stdio.h>
-#include <assert.h>
-#include <stdlib.h>
-#include "putty.h"
-
-/*
- * Some command-line parameters need to be saved up until after
- * we've loaded the saved session which will form the basis of our
- * eventual running configuration. For this we use the macro
- * SAVEABLE, which notices if the `need_save' parameter is set and
- * saves the parameter and value on a list.
- *
- * We also assign priorities to saved parameters, just to slightly
- * ameliorate silly ordering problems. For example, if you specify
- * a saved session to load, it will be loaded _before_ all your
- * local modifications such as -L are evaluated; and if you specify
- * a protocol and a port, the protocol is set up first so that the
- * port can override its choice of port number.
- *
- * (In fact -load is not saved at all, since in at least Plink the
- * processing of further command-line options depends on whether or
- * not the loaded session contained a hostname. So it must be
- * executed immediately.)
- */
-
-#define NPRIORITIES 2
-
-struct cmdline_saved_param {
- char *p, *value;
-};
-struct cmdline_saved_param_set {
- struct cmdline_saved_param *params;
- int nsaved, savesize;
-};
-
-/*
- * C guarantees this structure will be initialised to all zero at
- * program start, which is exactly what we want.
- */
-static struct cmdline_saved_param_set saves[NPRIORITIES];
-
-static void cmdline_save_param(char *p, char *value, int pri)
-{
- if (saves[pri].nsaved >= saves[pri].savesize) {
- saves[pri].savesize = saves[pri].nsaved + 32;
- saves[pri].params = sresize(saves[pri].params, saves[pri].savesize,
- struct cmdline_saved_param);
- }
- saves[pri].params[saves[pri].nsaved].p = p;
- saves[pri].params[saves[pri].nsaved].value = value;
- saves[pri].nsaved++;
-}
-
-static char *cmdline_password = NULL;
-
-void cmdline_cleanup(void)
-{
- int pri;
-
- if (cmdline_password) {
- memset(cmdline_password, 0, strlen(cmdline_password));
- sfree(cmdline_password);
- cmdline_password = NULL;
- }
-
- for (pri = 0; pri < NPRIORITIES; pri++) {
- sfree(saves[pri].params);
- saves[pri].params = NULL;
- saves[pri].savesize = 0;
- saves[pri].nsaved = 0;
- }
-}
-
-#define SAVEABLE(pri) do { \
- if (need_save) { cmdline_save_param(p, value, pri); return ret; } \
-} while (0)
-
-/*
- * Similar interface to get_userpass_input(), except that here a -1
- * return means that we aren't capable of processing the prompt and
- * someone else should do it.
- */
-int cmdline_get_passwd_input(prompts_t *p, unsigned char *in, int inlen) {
-
- static int tried_once = 0;
-
- /*
- * We only handle prompts which don't echo (which we assume to be
- * passwords), and (currently) we only cope with a password prompt
- * that comes in a prompt-set on its own.
- */
- if (!cmdline_password || in || p->n_prompts != 1 || p->prompts[0]->echo) {
- return -1;
- }
-
- /*
- * If we've tried once, return utter failure (no more passwords left
- * to try).
- */
- if (tried_once)
- return 0;
-
- prompt_set_result(p->prompts[0], cmdline_password);
- memset(cmdline_password, 0, strlen(cmdline_password));
- sfree(cmdline_password);
- cmdline_password = NULL;
- tried_once = 1;
- return 1;
-}
-
-/*
- * Here we have a flags word which describes the capabilities of
- * the particular tool on whose behalf we're running. We will
- * refuse certain command-line options if a particular tool
- * inherently can't do anything sensible. For example, the file
- * transfer tools (psftp, pscp) can't do a great deal with protocol
- * selections (ever tried running scp over telnet?) or with port
- * forwarding (even if it wasn't a hideously bad idea, they don't
- * have the select() infrastructure to make them work).
- */
-int cmdline_tooltype = 0;
-
-static int cmdline_check_unavailable(int flag, char *p)
-{
- if (cmdline_tooltype & flag) {
- cmdline_error("option \"%s\" not available in this tool", p);
- return 1;
- }
- return 0;
-}
-
-#define UNAVAILABLE_IN(flag) do { \
- if (cmdline_check_unavailable(flag, p)) return ret; \
-} while (0)
-
-/*
- * Process a standard command-line parameter. `p' is the parameter
- * in question; `value' is the subsequent element of argv, which
- * may or may not be required as an operand to the parameter.
- * If `need_save' is 1, arguments which need to be saved as
- * described at this top of this file are, for later execution;
- * if 0, they are processed normally. (-1 is a special value used
- * by pterm to count arguments for a preliminary pass through the
- * argument list; it causes immediate return with an appropriate
- * value with no action taken.)
- * Return value is 2 if both arguments were used; 1 if only p was
- * used; 0 if the parameter wasn't one we recognised; -2 if it
- * should have been 2 but value was NULL.
- */
-
-#define RETURN(x) do { \
- if ((x) == 2 && !value) return -2; \
- ret = x; \
- if (need_save < 0) return x; \
-} while (0)
-
-int cmdline_process_param(char *p, char *value, int need_save, Conf *conf)
-{
- int ret = 0;
-
- if (!strcmp(p, "-load")) {
- RETURN(2);
- /* This parameter must be processed immediately rather than being
- * saved. */
- do_defaults(value, conf);
- loaded_session = TRUE;
- cmdline_session_name = dupstr(value);
- return 2;
- }
- if (!strcmp(p, "-ssh")) {
- RETURN(1);
- UNAVAILABLE_IN(TOOLTYPE_FILETRANSFER | TOOLTYPE_NONNETWORK);
- SAVEABLE(0);
- default_protocol = PROT_SSH;
- default_port = 22;
- conf_set_int(conf, CONF_protocol, default_protocol);
- conf_set_int(conf, CONF_port, default_port);
- return 1;
- }
- if (!strcmp(p, "-telnet")) {
- RETURN(1);
- UNAVAILABLE_IN(TOOLTYPE_FILETRANSFER | TOOLTYPE_NONNETWORK);
- SAVEABLE(0);
- default_protocol = PROT_TELNET;
- default_port = 23;
- conf_set_int(conf, CONF_protocol, default_protocol);
- conf_set_int(conf, CONF_port, default_port);
- return 1;
- }
- if (!strcmp(p, "-rlogin")) {
- RETURN(1);
- UNAVAILABLE_IN(TOOLTYPE_FILETRANSFER | TOOLTYPE_NONNETWORK);
- SAVEABLE(0);
- default_protocol = PROT_RLOGIN;
- default_port = 513;
- conf_set_int(conf, CONF_protocol, default_protocol);
- conf_set_int(conf, CONF_port, default_port);
- return 1;
- }
- if (!strcmp(p, "-raw")) {
- RETURN(1);
- UNAVAILABLE_IN(TOOLTYPE_FILETRANSFER | TOOLTYPE_NONNETWORK);
- SAVEABLE(0);
- default_protocol = PROT_RAW;
- conf_set_int(conf, CONF_protocol, default_protocol);
- }
- if (!strcmp(p, "-serial")) {
- RETURN(1);
- /* Serial is not NONNETWORK in an odd sense of the word */
- UNAVAILABLE_IN(TOOLTYPE_FILETRANSFER | TOOLTYPE_NONNETWORK);
- SAVEABLE(0);
- default_protocol = PROT_SERIAL;
- conf_set_int(conf, CONF_protocol, default_protocol);
- /* The host parameter will already be loaded into CONF_host,
- * so copy it across */
- conf_set_str(conf, CONF_serline, conf_get_str(conf, CONF_host));
- }
- if (!strcmp(p, "-v")) {
- RETURN(1);
- flags |= FLAG_VERBOSE;
- }
- if (!strcmp(p, "-l")) {
- RETURN(2);
- UNAVAILABLE_IN(TOOLTYPE_NONNETWORK);
- SAVEABLE(0);
- conf_set_str(conf, CONF_username, value);
- }
- if (!strcmp(p, "-loghost")) {
- RETURN(2);
- UNAVAILABLE_IN(TOOLTYPE_NONNETWORK);
- SAVEABLE(0);
- conf_set_str(conf, CONF_loghost, value);
- }
- if ((!strcmp(p, "-L") || !strcmp(p, "-R") || !strcmp(p, "-D"))) {
- char type, *q, *qq, *key, *val;
- RETURN(2);
- UNAVAILABLE_IN(TOOLTYPE_FILETRANSFER | TOOLTYPE_NONNETWORK);
- SAVEABLE(0);
- if (strcmp(p, "-D")) {
- /*
- * For -L or -R forwarding types:
- *
- * We expect _at least_ two colons in this string. The
- * possible formats are `sourceport:desthost:destport',
- * or `sourceip:sourceport:desthost:destport' if you're
- * specifying a particular loopback address. We need to
- * replace the one between source and dest with a \t;
- * this means we must find the second-to-last colon in
- * the string.
- *
- * (This looks like a foolish way of doing it given the
- * existence of strrchr, but it's more efficient than
- * two strrchrs - not to mention that the second strrchr
- * would require us to modify the input string!)
- */
-
- type = p[1]; /* 'L' or 'R' */
-
- q = qq = strchr(value, ':');
- while (qq) {
- char *qqq = strchr(qq+1, ':');
- if (qqq)
- q = qq;
- qq = qqq;
- }
-
- if (!q) {
- cmdline_error("-%c expects at least two colons in its"
- " argument", type);
- return ret;
- }
-
- key = dupprintf("%c%.*s", type, q - value, value);
- val = dupstr(q+1);
- } else {
- /*
- * Dynamic port forwardings are entered under the same key
- * as if they were local (because they occupy the same
- * port space - a local and a dynamic forwarding on the
- * same local port are mutually exclusive), with the
- * special value "D" (which can be distinguished from
- * anything in the ordinary -L case by containing no
- * colon).
- */
- key = dupprintf("L%s", value);
- val = dupstr("D");
- }
- conf_set_str_str(conf, CONF_portfwd, key, val);
- sfree(key);
- sfree(val);
- }
- if ((!strcmp(p, "-nc"))) {
- char *host, *portp;
-
- RETURN(2);
- UNAVAILABLE_IN(TOOLTYPE_FILETRANSFER | TOOLTYPE_NONNETWORK);
- SAVEABLE(0);
-
- portp = strchr(value, ':');
- if (!portp) {
- cmdline_error("-nc expects argument of form 'host:port'");
- return ret;
- }
-
- host = dupprintf("%.*s", portp - value, value);
- conf_set_str(conf, CONF_ssh_nc_host, host);
- conf_set_int(conf, CONF_ssh_nc_port, atoi(portp + 1));
- sfree(host);
- }
- if (!strcmp(p, "-m")) {
- char *filename, *command;
- int cmdlen, cmdsize;
- FILE *fp;
- int c, d;
-
- RETURN(2);
- UNAVAILABLE_IN(TOOLTYPE_FILETRANSFER | TOOLTYPE_NONNETWORK);
- SAVEABLE(0);
-
- filename = value;
-
- cmdlen = cmdsize = 0;
- command = NULL;
- fp = fopen(filename, "r");
- if (!fp) {
- cmdline_error("unable to open command file \"%s\"", filename);
- return ret;
- }
- do {
- c = fgetc(fp);
- d = c;
- if (c == EOF)
- d = 0;
- if (cmdlen >= cmdsize) {
- cmdsize = cmdlen + 512;
- command = sresize(command, cmdsize, char);
- }
- command[cmdlen++] = d;
- } while (c != EOF);
- fclose(fp);
- conf_set_str(conf, CONF_remote_cmd, command);
- conf_set_str(conf, CONF_remote_cmd2, "");
- conf_set_int(conf, CONF_nopty, TRUE); /* command => no terminal */
- sfree(command);
- }
- if (!strcmp(p, "-P")) {
- RETURN(2);
- UNAVAILABLE_IN(TOOLTYPE_NONNETWORK);
- SAVEABLE(1); /* lower priority than -ssh,-telnet */
- conf_set_int(conf, CONF_port, atoi(value));
- }
- if (!strcmp(p, "-pw")) {
- RETURN(2);
- UNAVAILABLE_IN(TOOLTYPE_NONNETWORK);
- SAVEABLE(1);
- /* We delay evaluating this until after the protocol is decided,
- * so that we can warn if it's of no use with the selected protocol */
- if (conf_get_int(conf, CONF_protocol) != PROT_SSH)
- cmdline_error("the -pw option can only be used with the "
- "SSH protocol");
- else {
- cmdline_password = dupstr(value);
- /* Assuming that `value' is directly from argv, make a good faith
- * attempt to trample it, to stop it showing up in `ps' output
- * on Unix-like systems. Not guaranteed, of course. */
- memset(value, 0, strlen(value));
- }
- }
-
- if (!strcmp(p, "-agent") || !strcmp(p, "-pagent") ||
- !strcmp(p, "-pageant")) {
- RETURN(1);
- UNAVAILABLE_IN(TOOLTYPE_NONNETWORK);
- SAVEABLE(0);
- conf_set_int(conf, CONF_tryagent, TRUE);
- }
- if (!strcmp(p, "-noagent") || !strcmp(p, "-nopagent") ||
- !strcmp(p, "-nopageant")) {
- RETURN(1);
- UNAVAILABLE_IN(TOOLTYPE_NONNETWORK);
- SAVEABLE(0);
- conf_set_int(conf, CONF_tryagent, FALSE);
- }
-
- if (!strcmp(p, "-A")) {
- RETURN(1);
- UNAVAILABLE_IN(TOOLTYPE_FILETRANSFER | TOOLTYPE_NONNETWORK);
- SAVEABLE(0);
- conf_set_int(conf, CONF_agentfwd, 1);
- }
- if (!strcmp(p, "-a")) {
- RETURN(1);
- UNAVAILABLE_IN(TOOLTYPE_FILETRANSFER | TOOLTYPE_NONNETWORK);
- SAVEABLE(0);
- conf_set_int(conf, CONF_agentfwd, 0);
- }
-
- if (!strcmp(p, "-X")) {
- RETURN(1);
- UNAVAILABLE_IN(TOOLTYPE_FILETRANSFER | TOOLTYPE_NONNETWORK);
- SAVEABLE(0);
- conf_set_int(conf, CONF_x11_forward, 1);
- }
- if (!strcmp(p, "-x")) {
- RETURN(1);
- UNAVAILABLE_IN(TOOLTYPE_FILETRANSFER | TOOLTYPE_NONNETWORK);
- SAVEABLE(0);
- conf_set_int(conf, CONF_x11_forward, 0);
- }
-
- if (!strcmp(p, "-t")) {
- RETURN(1);
- UNAVAILABLE_IN(TOOLTYPE_FILETRANSFER | TOOLTYPE_NONNETWORK);
- SAVEABLE(1); /* lower priority than -m */
- conf_set_int(conf, CONF_nopty, 0);
- }
- if (!strcmp(p, "-T")) {
- RETURN(1);
- UNAVAILABLE_IN(TOOLTYPE_FILETRANSFER | TOOLTYPE_NONNETWORK);
- SAVEABLE(1);
- conf_set_int(conf, CONF_nopty, 1);
- }
-
- if (!strcmp(p, "-N")) {
- RETURN(1);
- UNAVAILABLE_IN(TOOLTYPE_FILETRANSFER | TOOLTYPE_NONNETWORK);
- SAVEABLE(0);
- conf_set_int(conf, CONF_ssh_no_shell, 1);
- }
-
- if (!strcmp(p, "-C")) {
- RETURN(1);
- UNAVAILABLE_IN(TOOLTYPE_NONNETWORK);
- SAVEABLE(0);
- conf_set_int(conf, CONF_compression, 1);
- }
-
- if (!strcmp(p, "-1")) {
- RETURN(1);
- UNAVAILABLE_IN(TOOLTYPE_NONNETWORK);
- SAVEABLE(0);
- conf_set_int(conf, CONF_sshprot, 0); /* ssh protocol 1 only */
- }
- if (!strcmp(p, "-2")) {
- RETURN(1);
- UNAVAILABLE_IN(TOOLTYPE_NONNETWORK);
- SAVEABLE(0);
- conf_set_int(conf, CONF_sshprot, 3); /* ssh protocol 2 only */
- }
-
- if (!strcmp(p, "-i")) {
- Filename *fn;
- RETURN(2);
- UNAVAILABLE_IN(TOOLTYPE_NONNETWORK);
- SAVEABLE(0);
- fn = filename_from_str(value);
- conf_set_filename(conf, CONF_keyfile, fn);
- filename_free(fn);
- }
-
- if (!strcmp(p, "-4") || !strcmp(p, "-ipv4")) {
- RETURN(1);
- SAVEABLE(1);
- conf_set_int(conf, CONF_addressfamily, ADDRTYPE_IPV4);
- }
- if (!strcmp(p, "-6") || !strcmp(p, "-ipv6")) {
- RETURN(1);
- SAVEABLE(1);
- conf_set_int(conf, CONF_addressfamily, ADDRTYPE_IPV6);
- }
- if (!strcmp(p, "-sercfg")) {
- char* nextitem;
- RETURN(2);
- UNAVAILABLE_IN(TOOLTYPE_FILETRANSFER | TOOLTYPE_NONNETWORK);
- SAVEABLE(1);
- if (conf_get_int(conf, CONF_protocol) != PROT_SERIAL)
- cmdline_error("the -sercfg option can only be used with the "
- "serial protocol");
- /* Value[0] contains one or more , separated values, like 19200,8,n,1,X */
- nextitem = value;
- while (nextitem[0] != '\0') {
- int length, skip;
- char *end = strchr(nextitem, ',');
- if (!end) {
- length = strlen(nextitem);
- skip = 0;
- } else {
- length = end - nextitem;
- nextitem[length] = '\0';
- skip = 1;
- }
- if (length == 1) {
- switch (*nextitem) {
- case '1':
- case '2':
- conf_set_int(conf, CONF_serstopbits, 2 * (*nextitem-'0'));
- break;
-
- case '5':
- case '6':
- case '7':
- case '8':
- case '9':
- conf_set_int(conf, CONF_serdatabits, *nextitem-'0');
- break;
-
- case 'n':
- conf_set_int(conf, CONF_serparity, SER_PAR_NONE);
- break;
- case 'o':
- conf_set_int(conf, CONF_serparity, SER_PAR_ODD);
- break;
- case 'e':
- conf_set_int(conf, CONF_serparity, SER_PAR_EVEN);
- break;
- case 'm':
- conf_set_int(conf, CONF_serparity, SER_PAR_MARK);
- break;
- case 's':
- conf_set_int(conf, CONF_serparity, SER_PAR_SPACE);
- break;
-
- case 'N':
- conf_set_int(conf, CONF_serflow, SER_FLOW_NONE);
- break;
- case 'X':
- conf_set_int(conf, CONF_serflow, SER_FLOW_XONXOFF);
- break;
- case 'R':
- conf_set_int(conf, CONF_serflow, SER_FLOW_RTSCTS);
- break;
- case 'D':
- conf_set_int(conf, CONF_serflow, SER_FLOW_DSRDTR);
- break;
-
- default:
- cmdline_error("Unrecognised suboption \"-sercfg %c\"",
- *nextitem);
- }
- } else if (length == 3 && !strncmp(nextitem,"1.5",3)) {
- /* Messy special case */
- conf_set_int(conf, CONF_serstopbits, 3);
- } else {
- int serspeed = atoi(nextitem);
- if (serspeed != 0) {
- conf_set_int(conf, CONF_serspeed, serspeed);
- } else {
- cmdline_error("Unrecognised suboption \"-sercfg %s\"",
- nextitem);
- }
- }
- nextitem += length + skip;
- }
- }
- return ret; /* unrecognised */
-}
-
-void cmdline_run_saved(Conf *conf)
-{
- int pri, i;
- for (pri = 0; pri < NPRIORITIES; pri++)
- for (i = 0; i < saves[pri].nsaved; i++)
- cmdline_process_param(saves[pri].params[i].p,
- saves[pri].params[i].value, 0, conf);
-}
+/* + * cmdline.c - command-line parsing shared between many of the + * PuTTY applications + */ + +#include <stdio.h> +#include <assert.h> +#include <stdlib.h> +#include "putty.h" + +/* + * Some command-line parameters need to be saved up until after + * we've loaded the saved session which will form the basis of our + * eventual running configuration. For this we use the macro + * SAVEABLE, which notices if the `need_save' parameter is set and + * saves the parameter and value on a list. + * + * We also assign priorities to saved parameters, just to slightly + * ameliorate silly ordering problems. For example, if you specify + * a saved session to load, it will be loaded _before_ all your + * local modifications such as -L are evaluated; and if you specify + * a protocol and a port, the protocol is set up first so that the + * port can override its choice of port number. + * + * (In fact -load is not saved at all, since in at least Plink the + * processing of further command-line options depends on whether or + * not the loaded session contained a hostname. So it must be + * executed immediately.) + */ + +#define NPRIORITIES 2 + +struct cmdline_saved_param { + char *p, *value; +}; +struct cmdline_saved_param_set { + struct cmdline_saved_param *params; + int nsaved, savesize; +}; + +/* + * C guarantees this structure will be initialised to all zero at + * program start, which is exactly what we want. + */ +static struct cmdline_saved_param_set saves[NPRIORITIES]; + +static void cmdline_save_param(char *p, char *value, int pri) +{ + if (saves[pri].nsaved >= saves[pri].savesize) { + saves[pri].savesize = saves[pri].nsaved + 32; + saves[pri].params = sresize(saves[pri].params, saves[pri].savesize, + struct cmdline_saved_param); + } + saves[pri].params[saves[pri].nsaved].p = p; + saves[pri].params[saves[pri].nsaved].value = value; + saves[pri].nsaved++; +} + +static char *cmdline_password = NULL; + +void cmdline_cleanup(void) +{ + int pri; + + if (cmdline_password) { + smemclr(cmdline_password, strlen(cmdline_password)); + sfree(cmdline_password); + cmdline_password = NULL; + } + + for (pri = 0; pri < NPRIORITIES; pri++) { + sfree(saves[pri].params); + saves[pri].params = NULL; + saves[pri].savesize = 0; + saves[pri].nsaved = 0; + } +} + +#define SAVEABLE(pri) do { \ + if (need_save) { cmdline_save_param(p, value, pri); return ret; } \ +} while (0) + +/* + * Similar interface to get_userpass_input(), except that here a -1 + * return means that we aren't capable of processing the prompt and + * someone else should do it. + */ +int cmdline_get_passwd_input(prompts_t *p, unsigned char *in, int inlen) { + + static int tried_once = 0; + + /* + * We only handle prompts which don't echo (which we assume to be + * passwords), and (currently) we only cope with a password prompt + * that comes in a prompt-set on its own. + */ + if (!cmdline_password || in || p->n_prompts != 1 || p->prompts[0]->echo) { + return -1; + } + + /* + * If we've tried once, return utter failure (no more passwords left + * to try). + */ + if (tried_once) + return 0; + + prompt_set_result(p->prompts[0], cmdline_password); + smemclr(cmdline_password, strlen(cmdline_password)); + sfree(cmdline_password); + cmdline_password = NULL; + tried_once = 1; + return 1; +} + +/* + * Here we have a flags word which describes the capabilities of + * the particular tool on whose behalf we're running. We will + * refuse certain command-line options if a particular tool + * inherently can't do anything sensible. For example, the file + * transfer tools (psftp, pscp) can't do a great deal with protocol + * selections (ever tried running scp over telnet?) or with port + * forwarding (even if it wasn't a hideously bad idea, they don't + * have the select() infrastructure to make them work). + */ +int cmdline_tooltype = 0; + +static int cmdline_check_unavailable(int flag, char *p) +{ + if (cmdline_tooltype & flag) { + cmdline_error("option \"%s\" not available in this tool", p); + return 1; + } + return 0; +} + +#define UNAVAILABLE_IN(flag) do { \ + if (cmdline_check_unavailable(flag, p)) return ret; \ +} while (0) + +/* + * Process a standard command-line parameter. `p' is the parameter + * in question; `value' is the subsequent element of argv, which + * may or may not be required as an operand to the parameter. + * If `need_save' is 1, arguments which need to be saved as + * described at this top of this file are, for later execution; + * if 0, they are processed normally. (-1 is a special value used + * by pterm to count arguments for a preliminary pass through the + * argument list; it causes immediate return with an appropriate + * value with no action taken.) + * Return value is 2 if both arguments were used; 1 if only p was + * used; 0 if the parameter wasn't one we recognised; -2 if it + * should have been 2 but value was NULL. + */ + +#define RETURN(x) do { \ + if ((x) == 2 && !value) return -2; \ + ret = x; \ + if (need_save < 0) return x; \ +} while (0) + +int cmdline_process_param(char *p, char *value, int need_save, Conf *conf) +{ + int ret = 0; + + if (!strcmp(p, "-load")) { + RETURN(2); + /* This parameter must be processed immediately rather than being + * saved. */ + do_defaults(value, conf); + loaded_session = TRUE; + cmdline_session_name = dupstr(value); + return 2; + } + if (!strcmp(p, "-ssh")) { + RETURN(1); + UNAVAILABLE_IN(TOOLTYPE_FILETRANSFER | TOOLTYPE_NONNETWORK); + SAVEABLE(0); + default_protocol = PROT_SSH; + default_port = 22; + conf_set_int(conf, CONF_protocol, default_protocol); + conf_set_int(conf, CONF_port, default_port); + return 1; + } + if (!strcmp(p, "-telnet")) { + RETURN(1); + UNAVAILABLE_IN(TOOLTYPE_FILETRANSFER | TOOLTYPE_NONNETWORK); + SAVEABLE(0); + default_protocol = PROT_TELNET; + default_port = 23; + conf_set_int(conf, CONF_protocol, default_protocol); + conf_set_int(conf, CONF_port, default_port); + return 1; + } + if (!strcmp(p, "-rlogin")) { + RETURN(1); + UNAVAILABLE_IN(TOOLTYPE_FILETRANSFER | TOOLTYPE_NONNETWORK); + SAVEABLE(0); + default_protocol = PROT_RLOGIN; + default_port = 513; + conf_set_int(conf, CONF_protocol, default_protocol); + conf_set_int(conf, CONF_port, default_port); + return 1; + } + if (!strcmp(p, "-raw")) { + RETURN(1); + UNAVAILABLE_IN(TOOLTYPE_FILETRANSFER | TOOLTYPE_NONNETWORK); + SAVEABLE(0); + default_protocol = PROT_RAW; + conf_set_int(conf, CONF_protocol, default_protocol); + } + if (!strcmp(p, "-serial")) { + RETURN(1); + /* Serial is not NONNETWORK in an odd sense of the word */ + UNAVAILABLE_IN(TOOLTYPE_FILETRANSFER | TOOLTYPE_NONNETWORK); + SAVEABLE(0); + default_protocol = PROT_SERIAL; + conf_set_int(conf, CONF_protocol, default_protocol); + /* The host parameter will already be loaded into CONF_host, + * so copy it across */ + conf_set_str(conf, CONF_serline, conf_get_str(conf, CONF_host)); + } + if (!strcmp(p, "-v")) { + RETURN(1); + flags |= FLAG_VERBOSE; + } + if (!strcmp(p, "-l")) { + RETURN(2); + UNAVAILABLE_IN(TOOLTYPE_NONNETWORK); + SAVEABLE(0); + conf_set_str(conf, CONF_username, value); + } + if (!strcmp(p, "-loghost")) { + RETURN(2); + UNAVAILABLE_IN(TOOLTYPE_NONNETWORK); + SAVEABLE(0); + conf_set_str(conf, CONF_loghost, value); + } + if ((!strcmp(p, "-L") || !strcmp(p, "-R") || !strcmp(p, "-D"))) { + char type, *q, *qq, *key, *val; + RETURN(2); + UNAVAILABLE_IN(TOOLTYPE_FILETRANSFER | TOOLTYPE_NONNETWORK); + SAVEABLE(0); + if (strcmp(p, "-D")) { + /* + * For -L or -R forwarding types: + * + * We expect _at least_ two colons in this string. The + * possible formats are `sourceport:desthost:destport', + * or `sourceip:sourceport:desthost:destport' if you're + * specifying a particular loopback address. We need to + * replace the one between source and dest with a \t; + * this means we must find the second-to-last colon in + * the string. + * + * (This looks like a foolish way of doing it given the + * existence of strrchr, but it's more efficient than + * two strrchrs - not to mention that the second strrchr + * would require us to modify the input string!) + */ + + type = p[1]; /* 'L' or 'R' */ + + q = qq = host_strchr(value, ':'); + while (qq) { + char *qqq = host_strchr(qq+1, ':'); + if (qqq) + q = qq; + qq = qqq; + } + + if (!q) { + cmdline_error("-%c expects at least two colons in its" + " argument", type); + return ret; + } + + key = dupprintf("%c%.*s", type, (int)(q - value), value); + val = dupstr(q+1); + } else { + /* + * Dynamic port forwardings are entered under the same key + * as if they were local (because they occupy the same + * port space - a local and a dynamic forwarding on the + * same local port are mutually exclusive), with the + * special value "D" (which can be distinguished from + * anything in the ordinary -L case by containing no + * colon). + */ + key = dupprintf("L%s", value); + val = dupstr("D"); + } + conf_set_str_str(conf, CONF_portfwd, key, val); + sfree(key); + sfree(val); + } + if ((!strcmp(p, "-nc"))) { + char *host, *portp; + + RETURN(2); + UNAVAILABLE_IN(TOOLTYPE_FILETRANSFER | TOOLTYPE_NONNETWORK); + SAVEABLE(0); + + portp = host_strchr(value, ':'); + if (!portp) { + cmdline_error("-nc expects argument of form 'host:port'"); + return ret; + } + + host = dupprintf("%.*s", (int)(portp - value), value); + conf_set_str(conf, CONF_ssh_nc_host, host); + conf_set_int(conf, CONF_ssh_nc_port, atoi(portp + 1)); + sfree(host); + } + if (!strcmp(p, "-m")) { + char *filename, *command; + int cmdlen, cmdsize; + FILE *fp; + int c, d; + + RETURN(2); + UNAVAILABLE_IN(TOOLTYPE_FILETRANSFER | TOOLTYPE_NONNETWORK); + SAVEABLE(0); + + filename = value; + + cmdlen = cmdsize = 0; + command = NULL; + fp = fopen(filename, "r"); + if (!fp) { + cmdline_error("unable to open command file \"%s\"", filename); + return ret; + } + do { + c = fgetc(fp); + d = c; + if (c == EOF) + d = 0; + if (cmdlen >= cmdsize) { + cmdsize = cmdlen + 512; + command = sresize(command, cmdsize, char); + } + command[cmdlen++] = d; + } while (c != EOF); + fclose(fp); + conf_set_str(conf, CONF_remote_cmd, command); + conf_set_str(conf, CONF_remote_cmd2, ""); + conf_set_int(conf, CONF_nopty, TRUE); /* command => no terminal */ + sfree(command); + } + if (!strcmp(p, "-P")) { + RETURN(2); + UNAVAILABLE_IN(TOOLTYPE_NONNETWORK); + SAVEABLE(1); /* lower priority than -ssh,-telnet */ + conf_set_int(conf, CONF_port, atoi(value)); + } + if (!strcmp(p, "-pw")) { + RETURN(2); + UNAVAILABLE_IN(TOOLTYPE_NONNETWORK); + SAVEABLE(1); + /* We delay evaluating this until after the protocol is decided, + * so that we can warn if it's of no use with the selected protocol */ + if (conf_get_int(conf, CONF_protocol) != PROT_SSH) + cmdline_error("the -pw option can only be used with the " + "SSH protocol"); + else { + cmdline_password = dupstr(value); + /* Assuming that `value' is directly from argv, make a good faith + * attempt to trample it, to stop it showing up in `ps' output + * on Unix-like systems. Not guaranteed, of course. */ + smemclr(value, strlen(value)); + } + } + + if (!strcmp(p, "-agent") || !strcmp(p, "-pagent") || + !strcmp(p, "-pageant")) { + RETURN(1); + UNAVAILABLE_IN(TOOLTYPE_NONNETWORK); + SAVEABLE(0); + conf_set_int(conf, CONF_tryagent, TRUE); + } + if (!strcmp(p, "-noagent") || !strcmp(p, "-nopagent") || + !strcmp(p, "-nopageant")) { + RETURN(1); + UNAVAILABLE_IN(TOOLTYPE_NONNETWORK); + SAVEABLE(0); + conf_set_int(conf, CONF_tryagent, FALSE); + } + + if (!strcmp(p, "-A")) { + RETURN(1); + UNAVAILABLE_IN(TOOLTYPE_FILETRANSFER | TOOLTYPE_NONNETWORK); + SAVEABLE(0); + conf_set_int(conf, CONF_agentfwd, 1); + } + if (!strcmp(p, "-a")) { + RETURN(1); + UNAVAILABLE_IN(TOOLTYPE_FILETRANSFER | TOOLTYPE_NONNETWORK); + SAVEABLE(0); + conf_set_int(conf, CONF_agentfwd, 0); + } + + if (!strcmp(p, "-X")) { + RETURN(1); + UNAVAILABLE_IN(TOOLTYPE_FILETRANSFER | TOOLTYPE_NONNETWORK); + SAVEABLE(0); + conf_set_int(conf, CONF_x11_forward, 1); + } + if (!strcmp(p, "-x")) { + RETURN(1); + UNAVAILABLE_IN(TOOLTYPE_FILETRANSFER | TOOLTYPE_NONNETWORK); + SAVEABLE(0); + conf_set_int(conf, CONF_x11_forward, 0); + } + + if (!strcmp(p, "-t")) { + RETURN(1); + UNAVAILABLE_IN(TOOLTYPE_FILETRANSFER | TOOLTYPE_NONNETWORK); + SAVEABLE(1); /* lower priority than -m */ + conf_set_int(conf, CONF_nopty, 0); + } + if (!strcmp(p, "-T")) { + RETURN(1); + UNAVAILABLE_IN(TOOLTYPE_FILETRANSFER | TOOLTYPE_NONNETWORK); + SAVEABLE(1); + conf_set_int(conf, CONF_nopty, 1); + } + + if (!strcmp(p, "-N")) { + RETURN(1); + UNAVAILABLE_IN(TOOLTYPE_FILETRANSFER | TOOLTYPE_NONNETWORK); + SAVEABLE(0); + conf_set_int(conf, CONF_ssh_no_shell, 1); + } + + if (!strcmp(p, "-C")) { + RETURN(1); + UNAVAILABLE_IN(TOOLTYPE_NONNETWORK); + SAVEABLE(0); + conf_set_int(conf, CONF_compression, 1); + } + + if (!strcmp(p, "-1")) { + RETURN(1); + UNAVAILABLE_IN(TOOLTYPE_NONNETWORK); + SAVEABLE(0); + conf_set_int(conf, CONF_sshprot, 0); /* ssh protocol 1 only */ + } + if (!strcmp(p, "-2")) { + RETURN(1); + UNAVAILABLE_IN(TOOLTYPE_NONNETWORK); + SAVEABLE(0); + conf_set_int(conf, CONF_sshprot, 3); /* ssh protocol 2 only */ + } + + if (!strcmp(p, "-i")) { + Filename *fn; + RETURN(2); + UNAVAILABLE_IN(TOOLTYPE_NONNETWORK); + SAVEABLE(0); + fn = filename_from_str(value); + conf_set_filename(conf, CONF_keyfile, fn); + filename_free(fn); + } + + if (!strcmp(p, "-4") || !strcmp(p, "-ipv4")) { + RETURN(1); + SAVEABLE(1); + conf_set_int(conf, CONF_addressfamily, ADDRTYPE_IPV4); + } + if (!strcmp(p, "-6") || !strcmp(p, "-ipv6")) { + RETURN(1); + SAVEABLE(1); + conf_set_int(conf, CONF_addressfamily, ADDRTYPE_IPV6); + } + if (!strcmp(p, "-sercfg")) { + char* nextitem; + RETURN(2); + UNAVAILABLE_IN(TOOLTYPE_FILETRANSFER | TOOLTYPE_NONNETWORK); + SAVEABLE(1); + if (conf_get_int(conf, CONF_protocol) != PROT_SERIAL) + cmdline_error("the -sercfg option can only be used with the " + "serial protocol"); + /* Value[0] contains one or more , separated values, like 19200,8,n,1,X */ + nextitem = value; + while (nextitem[0] != '\0') { + int length, skip; + char *end = strchr(nextitem, ','); + if (!end) { + length = strlen(nextitem); + skip = 0; + } else { + length = end - nextitem; + nextitem[length] = '\0'; + skip = 1; + } + if (length == 1) { + switch (*nextitem) { + case '1': + case '2': + conf_set_int(conf, CONF_serstopbits, 2 * (*nextitem-'0')); + break; + + case '5': + case '6': + case '7': + case '8': + case '9': + conf_set_int(conf, CONF_serdatabits, *nextitem-'0'); + break; + + case 'n': + conf_set_int(conf, CONF_serparity, SER_PAR_NONE); + break; + case 'o': + conf_set_int(conf, CONF_serparity, SER_PAR_ODD); + break; + case 'e': + conf_set_int(conf, CONF_serparity, SER_PAR_EVEN); + break; + case 'm': + conf_set_int(conf, CONF_serparity, SER_PAR_MARK); + break; + case 's': + conf_set_int(conf, CONF_serparity, SER_PAR_SPACE); + break; + + case 'N': + conf_set_int(conf, CONF_serflow, SER_FLOW_NONE); + break; + case 'X': + conf_set_int(conf, CONF_serflow, SER_FLOW_XONXOFF); + break; + case 'R': + conf_set_int(conf, CONF_serflow, SER_FLOW_RTSCTS); + break; + case 'D': + conf_set_int(conf, CONF_serflow, SER_FLOW_DSRDTR); + break; + + default: + cmdline_error("Unrecognised suboption \"-sercfg %c\"", + *nextitem); + } + } else if (length == 3 && !strncmp(nextitem,"1.5",3)) { + /* Messy special case */ + conf_set_int(conf, CONF_serstopbits, 3); + } else { + int serspeed = atoi(nextitem); + if (serspeed != 0) { + conf_set_int(conf, CONF_serspeed, serspeed); + } else { + cmdline_error("Unrecognised suboption \"-sercfg %s\"", + nextitem); + } + } + nextitem += length + skip; + } + } + return ret; /* unrecognised */ +} + +void cmdline_run_saved(Conf *conf) +{ + int pri, i; + for (pri = 0; pri < NPRIORITIES; pri++) + for (i = 0; i < saves[pri].nsaved; i++) + cmdline_process_param(saves[pri].params[i].p, + saves[pri].params[i].value, 0, conf); +} |