+++ /dev/null
-/*\r
- * cmdline.c - command-line parsing shared between many of the\r
- * PuTTY applications\r
- */\r
-\r
-#include <stdio.h>\r
-#include <assert.h>\r
-#include <stdlib.h>\r
-#include "putty.h"\r
-\r
-/*\r
- * Some command-line parameters need to be saved up until after\r
- * we've loaded the saved session which will form the basis of our\r
- * eventual running configuration. For this we use the macro\r
- * SAVEABLE, which notices if the `need_save' parameter is set and\r
- * saves the parameter and value on a list.\r
- * \r
- * We also assign priorities to saved parameters, just to slightly\r
- * ameliorate silly ordering problems. For example, if you specify\r
- * a saved session to load, it will be loaded _before_ all your\r
- * local modifications such as -L are evaluated; and if you specify\r
- * a protocol and a port, the protocol is set up first so that the\r
- * port can override its choice of port number.\r
- * \r
- * (In fact -load is not saved at all, since in at least Plink the\r
- * processing of further command-line options depends on whether or\r
- * not the loaded session contained a hostname. So it must be\r
- * executed immediately.)\r
- */\r
-\r
-#define NPRIORITIES 2\r
-\r
-struct cmdline_saved_param {\r
- char *p, *value;\r
-};\r
-struct cmdline_saved_param_set {\r
- struct cmdline_saved_param *params;\r
- int nsaved, savesize;\r
-};\r
-\r
-/*\r
- * C guarantees this structure will be initialised to all zero at\r
- * program start, which is exactly what we want.\r
- */\r
-static struct cmdline_saved_param_set saves[NPRIORITIES];\r
-\r
-static void cmdline_save_param(char *p, char *value, int pri)\r
-{\r
- if (saves[pri].nsaved >= saves[pri].savesize) {\r
- saves[pri].savesize = saves[pri].nsaved + 32;\r
- saves[pri].params = sresize(saves[pri].params, saves[pri].savesize,\r
- struct cmdline_saved_param);\r
- }\r
- saves[pri].params[saves[pri].nsaved].p = p;\r
- saves[pri].params[saves[pri].nsaved].value = value;\r
- saves[pri].nsaved++;\r
-}\r
-\r
-static char *cmdline_password = NULL;\r
-\r
-void cmdline_cleanup(void)\r
-{\r
- int pri;\r
-\r
- if (cmdline_password) {\r
- memset(cmdline_password, 0, strlen(cmdline_password));\r
- sfree(cmdline_password);\r
- cmdline_password = NULL;\r
- }\r
- \r
- for (pri = 0; pri < NPRIORITIES; pri++) {\r
- sfree(saves[pri].params);\r
- saves[pri].params = NULL;\r
- saves[pri].savesize = 0;\r
- saves[pri].nsaved = 0;\r
- }\r
-}\r
-\r
-#define SAVEABLE(pri) do { \\r
- if (need_save) { cmdline_save_param(p, value, pri); return ret; } \\r
-} while (0)\r
-\r
-/*\r
- * Similar interface to get_userpass_input(), except that here a -1\r
- * return means that we aren't capable of processing the prompt and\r
- * someone else should do it.\r
- */\r
-int cmdline_get_passwd_input(prompts_t *p, unsigned char *in, int inlen) {\r
-\r
- static int tried_once = 0;\r
-\r
- /*\r
- * We only handle prompts which don't echo (which we assume to be\r
- * passwords), and (currently) we only cope with a password prompt\r
- * that comes in a prompt-set on its own.\r
- */\r
- if (!cmdline_password || in || p->n_prompts != 1 || p->prompts[0]->echo) {\r
- return -1;\r
- }\r
-\r
- /*\r
- * If we've tried once, return utter failure (no more passwords left\r
- * to try).\r
- */\r
- if (tried_once)\r
- return 0;\r
-\r
- strncpy(p->prompts[0]->result, cmdline_password,\r
- p->prompts[0]->result_len);\r
- p->prompts[0]->result[p->prompts[0]->result_len-1] = '\0';\r
- memset(cmdline_password, 0, strlen(cmdline_password));\r
- sfree(cmdline_password);\r
- cmdline_password = NULL;\r
- tried_once = 1;\r
- return 1;\r
-\r
-}\r
-\r
-/*\r
- * Here we have a flags word which describes the capabilities of\r
- * the particular tool on whose behalf we're running. We will\r
- * refuse certain command-line options if a particular tool\r
- * inherently can't do anything sensible. For example, the file\r
- * transfer tools (psftp, pscp) can't do a great deal with protocol\r
- * selections (ever tried running scp over telnet?) or with port\r
- * forwarding (even if it wasn't a hideously bad idea, they don't\r
- * have the select() infrastructure to make them work).\r
- */\r
-int cmdline_tooltype = 0;\r
-\r
-static int cmdline_check_unavailable(int flag, char *p)\r
-{\r
- if (cmdline_tooltype & flag) {\r
- cmdline_error("option \"%s\" not available in this tool", p);\r
- return 1;\r
- }\r
- return 0;\r
-}\r
-\r
-#define UNAVAILABLE_IN(flag) do { \\r
- if (cmdline_check_unavailable(flag, p)) return ret; \\r
-} while (0)\r
-\r
-/*\r
- * Process a standard command-line parameter. `p' is the parameter\r
- * in question; `value' is the subsequent element of argv, which\r
- * may or may not be required as an operand to the parameter.\r
- * If `need_save' is 1, arguments which need to be saved as\r
- * described at this top of this file are, for later execution;\r
- * if 0, they are processed normally. (-1 is a special value used\r
- * by pterm to count arguments for a preliminary pass through the\r
- * argument list; it causes immediate return with an appropriate\r
- * value with no action taken.)\r
- * Return value is 2 if both arguments were used; 1 if only p was\r
- * used; 0 if the parameter wasn't one we recognised; -2 if it\r
- * should have been 2 but value was NULL.\r
- */\r
-\r
-#define RETURN(x) do { \\r
- if ((x) == 2 && !value) return -2; \\r
- ret = x; \\r
- if (need_save < 0) return x; \\r
-} while (0)\r
-\r
-int cmdline_process_param(char *p, char *value, int need_save, Config *cfg)\r
-{\r
- int ret = 0;\r
-\r
- if (!strcmp(p, "-load")) {\r
- RETURN(2);\r
- /* This parameter must be processed immediately rather than being\r
- * saved. */\r
- do_defaults(value, cfg);\r
- loaded_session = TRUE;\r
- cmdline_session_name = dupstr(value);\r
- return 2;\r
- }\r
- if (!strcmp(p, "-ssh")) {\r
- RETURN(1);\r
- UNAVAILABLE_IN(TOOLTYPE_FILETRANSFER | TOOLTYPE_NONNETWORK);\r
- SAVEABLE(0);\r
- default_protocol = cfg->protocol = PROT_SSH;\r
- default_port = cfg->port = 22;\r
- return 1;\r
- }\r
- if (!strcmp(p, "-telnet")) {\r
- RETURN(1);\r
- UNAVAILABLE_IN(TOOLTYPE_FILETRANSFER | TOOLTYPE_NONNETWORK);\r
- SAVEABLE(0);\r
- default_protocol = cfg->protocol = PROT_TELNET;\r
- default_port = cfg->port = 23;\r
- return 1;\r
- }\r
- if (!strcmp(p, "-rlogin")) {\r
- RETURN(1);\r
- UNAVAILABLE_IN(TOOLTYPE_FILETRANSFER | TOOLTYPE_NONNETWORK);\r
- SAVEABLE(0);\r
- default_protocol = cfg->protocol = PROT_RLOGIN;\r
- default_port = cfg->port = 513;\r
- return 1;\r
- }\r
- if (!strcmp(p, "-raw")) {\r
- RETURN(1);\r
- UNAVAILABLE_IN(TOOLTYPE_FILETRANSFER | TOOLTYPE_NONNETWORK);\r
- SAVEABLE(0);\r
- default_protocol = cfg->protocol = PROT_RAW;\r
- }\r
- if (!strcmp(p, "-serial")) {\r
- RETURN(1);\r
- /* Serial is not NONNETWORK in an odd sense of the word */\r
- UNAVAILABLE_IN(TOOLTYPE_FILETRANSFER | TOOLTYPE_NONNETWORK);\r
- SAVEABLE(0);\r
- default_protocol = cfg->protocol = PROT_SERIAL;\r
- /* The host parameter will already be loaded into cfg->host, so copy it across */\r
- strncpy(cfg->serline, cfg->host, sizeof(cfg->serline) - 1);\r
- cfg->serline[sizeof(cfg->serline) - 1] = '\0';\r
- }\r
- if (!strcmp(p, "-v")) {\r
- RETURN(1);\r
- flags |= FLAG_VERBOSE;\r
- }\r
- if (!strcmp(p, "-l")) {\r
- RETURN(2);\r
- UNAVAILABLE_IN(TOOLTYPE_NONNETWORK);\r
- SAVEABLE(0);\r
- strncpy(cfg->username, value, sizeof(cfg->username));\r
- cfg->username[sizeof(cfg->username) - 1] = '\0';\r
- }\r
- if (!strcmp(p, "-loghost")) {\r
- RETURN(2);\r
- UNAVAILABLE_IN(TOOLTYPE_NONNETWORK);\r
- SAVEABLE(0);\r
- strncpy(cfg->loghost, value, sizeof(cfg->loghost));\r
- cfg->loghost[sizeof(cfg->loghost) - 1] = '\0';\r
- }\r
- if ((!strcmp(p, "-L") || !strcmp(p, "-R") || !strcmp(p, "-D"))) {\r
- char *fwd, *ptr, *q, *qq;\r
- int dynamic, i=0;\r
- RETURN(2);\r
- UNAVAILABLE_IN(TOOLTYPE_FILETRANSFER | TOOLTYPE_NONNETWORK);\r
- SAVEABLE(0);\r
- dynamic = !strcmp(p, "-D");\r
- fwd = value;\r
- ptr = cfg->portfwd;\r
- /* if existing forwards, find end of list */\r
- while (*ptr) {\r
- while (*ptr)\r
- ptr++;\r
- ptr++;\r
- }\r
- i = ptr - cfg->portfwd;\r
- ptr[0] = p[1]; /* insert a 'L', 'R' or 'D' at the start */\r
- ptr++;\r
- if (1 + strlen(fwd) + 2 > sizeof(cfg->portfwd) - i) {\r
- cmdline_error("out of space for port forwardings");\r
- return ret;\r
- }\r
- strncpy(ptr, fwd, sizeof(cfg->portfwd) - i - 2);\r
- if (!dynamic) {\r
- /*\r
- * We expect _at least_ two colons in this string. The\r
- * possible formats are `sourceport:desthost:destport',\r
- * or `sourceip:sourceport:desthost:destport' if you're\r
- * specifying a particular loopback address. We need to\r
- * replace the one between source and dest with a \t;\r
- * this means we must find the second-to-last colon in\r
- * the string.\r
- */\r
- q = qq = strchr(ptr, ':');\r
- while (qq) {\r
- char *qqq = strchr(qq+1, ':');\r
- if (qqq)\r
- q = qq;\r
- qq = qqq;\r
- }\r
- if (q) *q = '\t'; /* replace second-last colon with \t */\r
- }\r
- cfg->portfwd[sizeof(cfg->portfwd) - 1] = '\0';\r
- cfg->portfwd[sizeof(cfg->portfwd) - 2] = '\0';\r
- ptr[strlen(ptr)+1] = '\000'; /* append 2nd '\000' */\r
- }\r
- if ((!strcmp(p, "-nc"))) {\r
- char *host, *portp;\r
-\r
- RETURN(2);\r
- UNAVAILABLE_IN(TOOLTYPE_FILETRANSFER | TOOLTYPE_NONNETWORK);\r
- SAVEABLE(0);\r
-\r
- host = portp = value;\r
- while (*portp && *portp != ':')\r
- portp++;\r
- if (*portp) {\r
- unsigned len = portp - host;\r
- if (len >= sizeof(cfg->ssh_nc_host))\r
- len = sizeof(cfg->ssh_nc_host) - 1;\r
- memcpy(cfg->ssh_nc_host, value, len);\r
- cfg->ssh_nc_host[len] = '\0';\r
- cfg->ssh_nc_port = atoi(portp+1);\r
- } else {\r
- cmdline_error("-nc expects argument of form 'host:port'");\r
- return ret;\r
- }\r
- }\r
- if (!strcmp(p, "-m")) {\r
- char *filename, *command;\r
- int cmdlen, cmdsize;\r
- FILE *fp;\r
- int c, d;\r
-\r
- RETURN(2);\r
- UNAVAILABLE_IN(TOOLTYPE_FILETRANSFER | TOOLTYPE_NONNETWORK);\r
- SAVEABLE(0);\r
-\r
- filename = value;\r
-\r
- cmdlen = cmdsize = 0;\r
- command = NULL;\r
- fp = fopen(filename, "r");\r
- if (!fp) {\r
- cmdline_error("unable to open command "\r
- "file \"%s\"", filename);\r
- return ret;\r
- }\r
- do {\r
- c = fgetc(fp);\r
- d = c;\r
- if (c == EOF)\r
- d = 0;\r
- if (cmdlen >= cmdsize) {\r
- cmdsize = cmdlen + 512;\r
- command = sresize(command, cmdsize, char);\r
- }\r
- command[cmdlen++] = d;\r
- } while (c != EOF);\r
- cfg->remote_cmd_ptr = command;\r
- cfg->remote_cmd_ptr2 = NULL;\r
- cfg->nopty = TRUE; /* command => no terminal */\r
- fclose(fp);\r
- }\r
- if (!strcmp(p, "-P")) {\r
- RETURN(2);\r
- UNAVAILABLE_IN(TOOLTYPE_NONNETWORK);\r
- SAVEABLE(1); /* lower priority than -ssh,-telnet */\r
- cfg->port = atoi(value);\r
- }\r
- if (!strcmp(p, "-pw")) {\r
- RETURN(2);\r
- UNAVAILABLE_IN(TOOLTYPE_NONNETWORK);\r
- SAVEABLE(1);\r
- /* We delay evaluating this until after the protocol is decided,\r
- * so that we can warn if it's of no use with the selected protocol */\r
- if (cfg->protocol != PROT_SSH)\r
- cmdline_error("the -pw option can only be used with the "\r
- "SSH protocol");\r
- else {\r
- cmdline_password = dupstr(value);\r
- /* Assuming that `value' is directly from argv, make a good faith\r
- * attempt to trample it, to stop it showing up in `ps' output\r
- * on Unix-like systems. Not guaranteed, of course. */\r
- memset(value, 0, strlen(value));\r
- }\r
- }\r
-\r
- if (!strcmp(p, "-agent") || !strcmp(p, "-pagent") ||\r
- !strcmp(p, "-pageant")) {\r
- RETURN(1);\r
- UNAVAILABLE_IN(TOOLTYPE_NONNETWORK);\r
- SAVEABLE(0);\r
- cfg->tryagent = TRUE;\r
- }\r
- if (!strcmp(p, "-noagent") || !strcmp(p, "-nopagent") ||\r
- !strcmp(p, "-nopageant")) {\r
- RETURN(1);\r
- UNAVAILABLE_IN(TOOLTYPE_NONNETWORK);\r
- SAVEABLE(0);\r
- cfg->tryagent = FALSE;\r
- }\r
-\r
- if (!strcmp(p, "-A")) {\r
- RETURN(1);\r
- UNAVAILABLE_IN(TOOLTYPE_FILETRANSFER | TOOLTYPE_NONNETWORK);\r
- SAVEABLE(0);\r
- cfg->agentfwd = 1;\r
- }\r
- if (!strcmp(p, "-a")) {\r
- RETURN(1);\r
- UNAVAILABLE_IN(TOOLTYPE_FILETRANSFER | TOOLTYPE_NONNETWORK);\r
- SAVEABLE(0);\r
- cfg->agentfwd = 0;\r
- }\r
-\r
- if (!strcmp(p, "-X")) {\r
- RETURN(1);\r
- UNAVAILABLE_IN(TOOLTYPE_FILETRANSFER | TOOLTYPE_NONNETWORK);\r
- SAVEABLE(0);\r
- cfg->x11_forward = 1;\r
- }\r
- if (!strcmp(p, "-x")) {\r
- RETURN(1);\r
- UNAVAILABLE_IN(TOOLTYPE_FILETRANSFER | TOOLTYPE_NONNETWORK);\r
- SAVEABLE(0);\r
- cfg->x11_forward = 0;\r
- }\r
-\r
- if (!strcmp(p, "-t")) {\r
- RETURN(1);\r
- UNAVAILABLE_IN(TOOLTYPE_FILETRANSFER | TOOLTYPE_NONNETWORK);\r
- SAVEABLE(1); /* lower priority than -m */\r
- cfg->nopty = 0;\r
- }\r
- if (!strcmp(p, "-T")) {\r
- RETURN(1);\r
- UNAVAILABLE_IN(TOOLTYPE_FILETRANSFER | TOOLTYPE_NONNETWORK);\r
- SAVEABLE(1);\r
- cfg->nopty = 1;\r
- }\r
-\r
- if (!strcmp(p, "-N")) {\r
- RETURN(1);\r
- UNAVAILABLE_IN(TOOLTYPE_FILETRANSFER | TOOLTYPE_NONNETWORK);\r
- SAVEABLE(0);\r
- cfg->ssh_no_shell = 1;\r
- }\r
-\r
- if (!strcmp(p, "-C")) {\r
- RETURN(1);\r
- UNAVAILABLE_IN(TOOLTYPE_NONNETWORK);\r
- SAVEABLE(0);\r
- cfg->compression = 1;\r
- }\r
-\r
- if (!strcmp(p, "-1")) {\r
- RETURN(1);\r
- UNAVAILABLE_IN(TOOLTYPE_NONNETWORK);\r
- SAVEABLE(0);\r
- cfg->sshprot = 0; /* ssh protocol 1 only */\r
- }\r
- if (!strcmp(p, "-2")) {\r
- RETURN(1);\r
- UNAVAILABLE_IN(TOOLTYPE_NONNETWORK);\r
- SAVEABLE(0);\r
- cfg->sshprot = 3; /* ssh protocol 2 only */\r
- }\r
-\r
- if (!strcmp(p, "-i")) {\r
- RETURN(2);\r
- UNAVAILABLE_IN(TOOLTYPE_NONNETWORK);\r
- SAVEABLE(0);\r
- cfg->keyfile = filename_from_str(value);\r
- }\r
-\r
- if (!strcmp(p, "-4") || !strcmp(p, "-ipv4")) {\r
- RETURN(1);\r
- SAVEABLE(1);\r
- cfg->addressfamily = ADDRTYPE_IPV4;\r
- }\r
- if (!strcmp(p, "-6") || !strcmp(p, "-ipv6")) {\r
- RETURN(1);\r
- SAVEABLE(1);\r
- cfg->addressfamily = ADDRTYPE_IPV6;\r
- }\r
- if (!strcmp(p, "-sercfg")) {\r
- char* nextitem;\r
- RETURN(2);\r
- UNAVAILABLE_IN(TOOLTYPE_FILETRANSFER | TOOLTYPE_NONNETWORK);\r
- SAVEABLE(1);\r
- if (cfg->protocol != PROT_SERIAL)\r
- cmdline_error("the -sercfg option can only be used with the "\r
- "serial protocol");\r
- /* Value[0] contains one or more , separated values, like 19200,8,n,1,X */\r
- nextitem = value;\r
- while (nextitem[0] != '\0') {\r
- int length, skip;\r
- char *end = strchr(nextitem, ',');\r
- if (!end) {\r
- length = strlen(nextitem);\r
- skip = 0;\r
- } else {\r
- length = end - nextitem;\r
- nextitem[length] = '\0';\r
- skip = 1;\r
- }\r
- if (length == 1) {\r
- switch (*nextitem) {\r
- case '1':\r
- cfg->serstopbits = 2;\r
- break;\r
- case '2':\r
- cfg->serstopbits = 4;\r
- break;\r
-\r
- case '5':\r
- cfg->serdatabits = 5;\r
- break;\r
- case '6':\r
- cfg->serdatabits = 6;\r
- break;\r
- case '7':\r
- cfg->serdatabits = 7;\r
- break;\r
- case '8':\r
- cfg->serdatabits = 8;\r
- break;\r
- case '9':\r
- cfg->serdatabits = 9;\r
- break;\r
-\r
- case 'n':\r
- cfg->serparity = SER_PAR_NONE;\r
- break;\r
- case 'o':\r
- cfg->serparity = SER_PAR_ODD;\r
- break;\r
- case 'e':\r
- cfg->serparity = SER_PAR_EVEN;\r
- break;\r
- case 'm':\r
- cfg->serparity = SER_PAR_MARK;\r
- break;\r
- case 's':\r
- cfg->serparity = SER_PAR_SPACE;\r
- break;\r
-\r
- case 'N':\r
- cfg->serflow = SER_FLOW_NONE;\r
- break;\r
- case 'X':\r
- cfg->serflow = SER_FLOW_XONXOFF;\r
- break;\r
- case 'R':\r
- cfg->serflow = SER_FLOW_RTSCTS;\r
- break;\r
- case 'D':\r
- cfg->serflow = SER_FLOW_DSRDTR;\r
- break;\r
-\r
- default:\r
- cmdline_error("Unrecognised suboption \"-sercfg %c\"",\r
- *nextitem);\r
- }\r
- } else if (length == 3 && !strncmp(nextitem,"1.5",3)) {\r
- /* Messy special case */\r
- cfg->serstopbits = 3;\r
- } else {\r
- int serspeed = atoi(nextitem);\r
- if (serspeed != 0) {\r
- cfg->serspeed = serspeed;\r
- } else {\r
- cmdline_error("Unrecognised suboption \"-sercfg %s\"",\r
- nextitem);\r
- }\r
- }\r
- nextitem += length + skip;\r
- }\r
- }\r
- return ret; /* unrecognised */\r
-}\r
-\r
-void cmdline_run_saved(Config *cfg)\r
-{\r
- int pri, i;\r
- for (pri = 0; pri < NPRIORITIES; pri++)\r
- for (i = 0; i < saves[pri].nsaved; i++)\r
- cmdline_process_param(saves[pri].params[i].p,\r
- saves[pri].params[i].value, 0, cfg);\r
-}\r
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